A glycoprotein that is secreted into the luminal surface of the epithelia in the gastrointestinal tract. It is found in the feces and pancreaticobiliary secretions and is used to monitor the response to colon cancer treatment.
Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral origin.
Substances that are recognized by the immune system and induce an immune reaction.
Tumors or cancer of the COLON.
Carbohydrate antigens expressed by malignant tissue. They are useful as tumor markers and are measured in the serum by means of a radioimmunoassay employing monoclonal antibodies.
Sialylated Lewis blood group carbohydrate antigen found in many adenocarcinomas of the digestive tract, especially pancreatic tumors.
Surface ligands, usually glycoproteins, that mediate cell-to-cell adhesion. Their functions include the assembly and interconnection of various vertebrate systems, as well as maintenance of tissue integration, wound healing, morphogenic movements, cellular migrations, and metastasis.
Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI.
Substances elaborated by bacteria that have antigenic activity.
Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls and may be isolated.
A type I keratin found associated with KERATIN-7 in ductal epithelia and gastrointestinal epithelia.
A malignant epithelial tumor with a glandular organization.
Antibodies produced by a single clone of cells.
Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or body fluids. They are indicators of tumor stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including hormones, antigens, amino and nucleic acids, enzymes, polyamines, and specific cell membrane proteins and lipids.
Differentiation antigens residing on mammalian leukocytes. CD stands for cluster of differentiation, which refers to groups of monoclonal antibodies that show similar reactivity with certain subpopulations of antigens of a particular lineage or differentiation stage. The subpopulations of antigens are also known by the same CD designation.
Tumors or cancer of the RECTUM.
Carbohydrate antigen elevated in patients with tumors of the breast, ovary, lung, and prostate as well as other disorders. The mucin is expressed normally by most glandular epithelia but shows particularly increased expression in the breast at lactation and in malignancy. It is thus an established serum marker for breast cancer.
Serological tumor marker composed of a molecular complex of cytokeratins 8, 18, and 19. It is used in the diagnosis and staging of bronchogenic carcinoma.
A malignant neoplasm derived from glandular epithelium, in which cystic accumulations of retained secretions are formed. The neoplastic cells manifest varying degrees of anaplasia and invasiveness, and local extension and metastases occur. Cystadenocarcinomas develop frequently in the ovaries, where pseudomucinous and serous types are recognized. (Stedman, 25th ed)
Substances elaborated by viruses that have antigenic activity.
Immunologic techniques based on the use of: (1) enzyme-antibody conjugates; (2) enzyme-antigen conjugates; (3) antienzyme antibody followed by its homologous enzyme; or (4) enzyme-antienzyme complexes. These are used histologically for visualizing or labeling tissue specimens.
Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation.
Sites on an antigen that interact with specific antibodies.
Compounds that contain the Cl(=O)(=O)(=O)O- structure. Included under this heading is perchloric acid and the salts and ester forms of perchlorate.
Conjugated protein-carbohydrate compounds including mucins, mucoid, and amyloid glycoproteins.
The first alpha-globulins to appear in mammalian sera during FETAL DEVELOPMENT and the dominant serum proteins in early embryonic life.
A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION.
Tumors or cancer of the GASTROINTESTINAL TRACT, from the MOUTH to the ANAL CANAL.
Immunoglobulins induced by antigens specific for tumors other than the normally occurring HISTOCOMPATIBILITY ANTIGENS.
Tumors or cancer of the LIVER.
A type I keratin expressed predominately in gastrointestinal epithelia, MERKEL CELLS, and the TASTE BUDS of the oral mucosa.
Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen.
A subclass of lipid-linked proteins that contain a GLYCOSYLPHOSPHATIDYLINOSITOL LINKAGE which holds them to the CELL MEMBRANE.
Liquid material found in epithelial-lined closed cavities or sacs.
The property of antibodies which enables them to react with some ANTIGENIC DETERMINANTS and not with others. Specificity is dependent on chemical composition, physical forces, and molecular structure at the binding site.
Glycoproteins with the electrophoretic mobility of BETA-GLOBULINS, secreted by the placental TROPHOBLASTS into the maternal bloodstream during PREGNANCY. They can be detected 18 days after OVULATION and reach 200 mg/ml at the end of pregnancy. They are associated with fetal well-being.
Partial immunoglobulin molecules resulting from selective cleavage by proteolytic enzymes or generated through PROTEIN ENGINEERING techniques.
Vaccines or candidate vaccines designed to prevent or treat cancer. Vaccines are produced using the patient's own whole tumor cells as the source of antigens, or using tumor-specific antigens, often recombinantly produced.
A malignant neoplasm made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases. It is a histological type of neoplasm but is often wrongly used as a synonym for "cancer." (From Dorland, 27th ed)
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Tumors or cancer of the LUNG.
A benign neoplasm derived from glandular epithelium, in which cystic accumulations of retained secretions are formed. In some instances, considerable portions of the neoplasm, or even the entire mass, may be cystic. (Stedman, 25th ed)
The transfer of a neoplasm from one organ or part of the body to another remote from the primary site.
Antigens expressed primarily on the membranes of living cells during sequential stages of maturation and differentiation. As immunologic markers they have high organ and tissue specificity and are useful as probes in studies of normal cell development as well as neoplastic transformation.
Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes.
A specific HLA-A surface antigen subtype. Members of this subtype contain alpha chains that are encoded by the HLA-A*02 allele family.
Carbohydrate antigen most commonly seen in tumors of the ovary and occasionally seen in breast, kidney, and gastrointestinal tract tumors and normal tissue. CA 125 is clearly tumor-associated but not tumor-specific.
Use of radiolabeled antibodies for diagnostic imaging of neoplasms. Antitumor antibodies are labeled with diverse radionuclides including iodine-131, iodine-123, indium-111, or technetium-99m and injected into the patient. Images are obtained by a scintillation camera.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Cells grown in vitro from neoplastic tissue. If they can be established as a TUMOR CELL LINE, they can be propagated in cell culture indefinitely.
Any part or derivative of any protozoan that elicits immunity; malaria (Plasmodium) and trypanosome antigens are presently the most frequently encountered.
Methods which attempt to express in replicable terms the extent of the neoplasm in the patient.
Washing out of the peritoneal cavity. The procedure is a diagnostic as well as a therapeutic technique following abdominal trauma or inflammation.
A genus of the family POXVIRIDAE, subfamily CHORDOPOXVIRINAE, comprising bird poxviruses. The type species is FOWLPOX VIRUS. Transmission is mechanical by ARTHROPODS.
Antibodies which react with the individual structural determinants (idiotopes) on the variable region of other antibodies.
Experimental transplantation of neoplasms in laboratory animals for research purposes.
A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.
Polyomavirus antigens which cause infection and cellular transformation. The large T antigen is necessary for the initiation of viral DNA synthesis, repression of transcription of the early region and is responsible in conjunction with the middle T antigen for the transformation of primary cells. Small T antigen is necessary for the completion of the productive infection cycle.
The local recurrence of a neoplasm following treatment. It arises from microscopic cells of the original neoplasm that have escaped therapeutic intervention and later become clinically visible at the original site.
A trisaccharide antigen expressed on glycolipids and many cell-surface glycoproteins. In the blood the antigen is found on the surface of NEUTROPHILS; EOSINOPHILS; and MONOCYTES. In addition, CD15 antigen is a stage-specific embryonic antigen.
Tumors or cancer of the STOMACH.
Radiotherapy where cytotoxic radionuclides are linked to antibodies in order to deliver toxins directly to tumor targets. Therapy with targeted radiation rather than antibody-targeted toxins (IMMUNOTOXINS) has the advantage that adjacent tumor cells, which lack the appropriate antigenic determinants, can be destroyed by radiation cross-fire. Radioimmunotherapy is sometimes called targeted radiotherapy, but this latter term can also refer to radionuclides linked to non-immune molecules (see RADIOTHERAPY).
Antigens determined by leukocyte loci found on chromosome 6, the major histocompatibility loci in humans. They are polypeptides or glycoproteins found on most nucleated cells and platelets, determine tissue types for transplantation, and are associated with certain diseases.
Antibodies, often monoclonal, in which the two antigen-binding sites are specific for separate ANTIGENIC DETERMINANTS. They are artificial antibodies produced by chemical crosslinking, fusion of HYBRIDOMA cells, or by molecular genetic techniques. They function as the main mediators of targeted cellular cytotoxicity and have been shown to be efficient in the targeting of drugs, toxins, radiolabeled haptens, and effector cells to diseased tissue, primarily tumors.
An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed.
Molecules on the surface of B- and T-lymphocytes that recognize and combine with specific antigens.
Glycoproteins with a wide distribution on hematopoietic and non-hematopoietic cells and strongly expressed on macrophages. CD58 mediates cell adhesion by binding to CD2; (ANTIGENS, CD2); and this enhances antigen-specific T-cell activation.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumor studies and studies on immune responses.
Established cell cultures that have the potential to propagate indefinitely.
Tumors or cancer of the SIGMOID COLON.
A hydro-lyase that catalyzes the dehydration of 2-phosphoglycerate to form PHOSPHOENOLPYRUVATE. Several different isoforms of this enzyme exist, each with its own tissue specificity.
New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.
Tumors or cancer of the CECUM.
Transplantation between animals of different species.
The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B.
Substances of fungal origin that have antigenic activity.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
Technique involving the diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, with the result being a precipitin reaction.
A carcinoma composed mainly of epithelial elements with little or no stroma. Medullary carcinomas of the breast constitute 5%-7% of all mammary carcinomas; medullary carcinomas of the thyroid comprise 3%-10% of all thyroid malignancies. (From Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1141; Segen, Dictionary of Modern Medicine, 1992)
Glycoproteins found on the membrane or surface of cells.
Form of radioimmunoassay in which excess specific labeled antibody is added directly to the test antigen being measured.
An adenocarcinoma producing mucin in significant amounts. (From Dorland, 27th ed)
The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON.
Any part or derivative of a helminth that elicits an immune reaction. The most commonly seen helminth antigens are those of the schistosomes.
Presence of fluid in the PLEURAL CAVITY as a complication of malignant disease. Malignant pleural effusions often contain actual malignant cells.
A true cyst of the PANCREAS, distinguished from the much more common PANCREATIC PSEUDOCYST by possessing a lining of mucous EPITHELIUM. Pancreatic cysts are categorized as congenital, retention, neoplastic, parasitic, enterogenous, or dermoid. Congenital cysts occur more frequently as solitary cysts but may be multiple. Retention cysts are gross enlargements of PANCREATIC DUCTS secondary to ductal obstruction. (From Bockus Gastroenterology, 4th ed, p4145)
Malignant neoplasm arising from the epithelium of the BRONCHI. It represents a large group of epithelial lung malignancies which can be divided into two clinical groups: SMALL CELL LUNG CANCER and NON-SMALL-CELL LUNG CARCINOMA.
The major group of transplantation antigens in the mouse.
A group of closely-related 72-74-kDa heterogeneous-nuclear ribonucleoproteins that are involved in RNA SPLICING events.
The largest class of organic compounds, including STARCH; GLYCOGEN; CELLULOSE; POLYSACCHARIDES; and simple MONOSACCHARIDES. Carbohydrates are composed of carbon, hydrogen, and oxygen in a ratio of Cn(H2O)n.
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
Techniques used to demonstrate or measure an immune response, and to identify or measure antigens using antibodies.
Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen.
The processes triggered by interactions of ANTIBODIES with their ANTIGENS.
Tumors or cancer of the human BREAST.
The type species of the genus AVIPOXVIRUS. It is the etiologic agent of FOWLPOX.
Tumors or cancer of the PANCREAS. Depending on the types of ISLET CELLS present in the tumors, various hormones can be secreted: GLUCAGON from PANCREATIC ALPHA CELLS; INSULIN from PANCREATIC BETA CELLS; and SOMATOSTATIN from the SOMATOSTATIN-SECRETING CELLS. Most are malignant except the insulin-producing tumors (INSULINOMA).
Diseases in any part of the GASTROINTESTINAL TRACT or the accessory organs (LIVER; BILIARY TRACT; PANCREAS).
A peptide hormone that lowers calcium concentration in the blood. In humans, it is released by thyroid cells and acts to decrease the formation and absorptive activity of osteoclasts. Its role in regulating plasma calcium is much greater in children and in certain diseases than in normal adults.
Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). The CD3 complex includes the gamma, delta, epsilon, zeta, and eta chains (subunits). When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA).
The extracellular moiety of the POLYMERIC IMMUNOGLOBULIN RECEPTOR found alone or complexed with IGA or IGM, in a variety of external secretions (tears, bile, colostrum.) Secretory component is derived by proteolytic cleavage of the receptor during transcytosis. When immunoglobulins IgA and IgM are bound to the receptor, during their transcytosis secretory component becomes covalently attached to them generating SECRETORY IMMUNOGLOBULIN A or secretory IMMUNOGLOBULIN M.
A subclass of HLA-D antigens that consist of alpha and beta chains. The inheritance of HLA-DR antigens differs from that of the HLA-DQ ANTIGENS and HLA-DP ANTIGENS.
Immunized T-lymphocytes which can directly destroy appropriate target cells. These cytotoxic lymphocytes may be generated in vitro in mixed lymphocyte cultures (MLC), in vivo during a graft-versus-host (GVH) reaction, or after immunization with an allograft, tumor cell or virally transformed or chemically modified target cell. The lytic phenomenon is sometimes referred to as cell-mediated lympholysis (CML). These CD8-positive cells are distinct from NATURAL KILLER CELLS and NATURAL KILLER T-CELLS. There are two effector phenotypes: TC1 and TC2.
Those proteins recognized by antibodies from serum of animals bearing tumors induced by viruses; these proteins are presumably coded for by the nucleic acids of the same viruses that caused the neoplastic transformation.
A type II keratin found associated with KERATIN-19 in ductal epithelia and gastrointestinal epithelia.
Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)
A technique using antibodies for identifying or quantifying a substance. Usually the substance being studied serves as antigen both in antibody production and in measurement of antibody by the test substance.
Serum that contains antibodies. It is obtained from an animal that has been immunized either by ANTIGEN injection or infection with microorganisms containing the antigen.
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.
Exfoliate neoplastic cells circulating in the blood and associated with metastasizing tumors.
Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.
A technique that combines protein electrophoresis and double immunodiffusion. In this procedure proteins are first separated by gel electrophoresis (usually agarose), then made visible by immunodiffusion of specific antibodies. A distinct elliptical precipitin arc results for each protein detectable by the antisera.
Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION.
Transfer of a neoplasm from its primary site to lymph nodes or to distant parts of the body by way of the lymphatic system.
Elements of limited time intervals, contributing to particular results or situations.
The complex formed by the binding of antigen and antibody molecules. The deposition of large antigen-antibody complexes leading to tissue damage causes IMMUNE COMPLEX DISEASES.
Tumors or cancer of the PERITONEUM.
Univalent antigen-binding fragments composed of one entire IMMUNOGLOBULIN LIGHT CHAIN and the amino terminal end of one of the IMMUNOGLOBULIN HEAVY CHAINS from the hinge region, linked to each other by disulfide bonds. Fab contains the IMMUNOGLOBULIN VARIABLE REGIONS, which are part of the antigen-binding site, and the first IMMUNOGLOBULIN CONSTANT REGIONS. This fragment can be obtained by digestion of immunoglobulins with the proteolytic enzyme PAPAIN.
Molecules on the surface of T-lymphocytes that recognize and combine with antigens. The receptors are non-covalently associated with a complex of several polypeptides collectively called CD3 antigens (ANTIGENS, CD3). Recognition of foreign antigen and the major histocompatibility complex is accomplished by a single heterodimeric antigen-receptor structure, composed of either alpha-beta (RECEPTORS, ANTIGEN, T-CELL, ALPHA-BETA) or gamma-delta (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA) chains.
A costimulatory ligand expressed by ANTIGEN-PRESENTING CELLS that binds to CTLA-4 ANTIGEN with high specificity and to CD28 ANTIGEN with low specificity. The interaction of CD80 with CD28 ANTIGEN provides a costimulatory signal to T-LYMPHOCYTES, while its interaction with CTLA-4 ANTIGEN may play a role in inducing PERIPHERAL TOLERANCE.
Recombinant proteins produced by the GENETIC TRANSLATION of fused genes formed by the combination of NUCLEIC ACID REGULATORY SEQUENCES of one or more genes with the protein coding sequences of one or more genes.
The production of ANTIBODIES by proliferating and differentiated B-LYMPHOCYTES under stimulation by ANTIGENS.
A species of the CORONAVIRUS genus causing hepatitis in mice. Four strains have been identified as MHV 1, MHV 2, MHV 3, and MHV 4 (also known as MHV-JHM, which is neurotropic and causes disseminated encephalomyelitis with demyelination as well as focal liver necrosis).
The sum of the weight of all the atoms in a molecule.
Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake.
A group of antigens that includes both the major and minor histocompatibility antigens. The former are genetically determined by the major histocompatibility complex. They determine tissue type for transplantation and cause allograft rejections. The latter are systems of allelic alloantigens that can cause weak transplant rejection.
Any of numerous agile, hollow-horned RUMINANTS of the genus Capra, in the family Bovidae, closely related to the SHEEP.
Accumulation of a drug or chemical substance in various organs (including those not relevant to its pharmacologic or therapeutic action). This distribution depends on the blood flow or perfusion rate of the organ, the ability of the drug to penetrate organ membranes, tissue specificity, protein binding. The distribution is usually expressed as tissue to plasma ratios.
Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use.
Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the replication fork during DNA replication. PCNA expression correlates with the proliferation activity of several malignant and non-malignant cell types.
The conic organs which usually give outlet to milk from the mammary glands.
A graphic means for assessing the ability of a screening test to discriminate between healthy and diseased persons; may also be used in other studies, e.g., distinguishing stimuli responses as to a faint stimuli or nonstimuli.

Classification of human colorectal adenocarcinoma cell lines. (1/2094)

Eleven human colorectal adenocarcinoma cell lines established in this laboratory were classified into three groups based on morphological features (light and electron microscopy), modal chromosome number, and ability to synthesize carcinoembryonic antigen (CEA). Group 1 cell lines contained both dedifferentiated and differentiating cells growing in tight clusters or islands of epithelium-like cells; their modal chromosome number was about 47, and they synthesized small to moderate amounts of CEA. Group 2 cell lines were more dedifferentiated, were hyperdiploid, and synthesized small amounts of CEA. Group 3 cell lines were morphologically similar to those of Group 1 by light microscopy. They differed ultrastructurally by containing microvesicular bodies; the modal chromosome number varied from hyperdiploid to hypertriploid or they had bimodal populations of hypodiploid and hypertriploid cells, and they synthesized relatively large amounts of CEA. No correlation could be found between Broder's grade or Duke's classification of the original tumor and modal chromosome number or ability to synthesize CEA. These findings support Nowell's hypothesis that the stem line is different for each solid tumor, which makes it difficult to relate chromosomal changes to the initiation of the neoplastic state.  (+info)

Marimastat in recurrent colorectal cancer: exploratory evaluation of biological activity by measurement of carcinoembryonic antigen. (2/2094)

Marimastat is a specific inhibitor of matrix metalloproteinases that has been shown to be effective in cancer models. A pilot, escalating-dose study of oral marimastat was performed in patients with recurrent colorectal cancer, in whom evaluation of serological response was made by measurement of carcinoembryonic antigen (CEA) levels. The study assessed the safety and tolerability of 4 weeks administration of marimastat, and determined a dose range producing detectable serological effects. Patients were recruited with a serum CEA level greater than 5 ng ml(-1), and rising by more than 25% over a 4-week screening period. Patients were treated for 28 days and entered into a continuation protocol if a serological response or clinical benefit was observed. Pharmacokinetic and safety data determined that groups of patients were recruited sequentially at 25 mg and 50 mg twice daily, and, thereafter, 10 mg twice daily, 10 mg once daily, 5 mg once daily and 20 mg once daily. A biological effect (BE) was defined as a CEA value on day 28 no greater than on day 0; a partial biological effect (PBE) was defined as a rise in CEA over the 28-day treatment period of less than 25%. Of 70 patients recruited, 63 completed the 28-day treatment period, and 55 were eligible for cancer antigen analysis. Examination of the dose-effect relationships provides evidence for a causal relationship between marimastat and biological effects: the proportion of patients with BE or PBE was higher with twice daily dosing (16 out of 25, 64%) than with once daily dosing (11 out of 30, 37%) (P = 0.043, chi2 test). Furthermore, the median rates of rise of CEA fell markedly during treatment compared with the screening period for patients receiving twice daily marimastat (P<0.0001), but not for patients receiving marimastat once daily (P = 0.25). Musculoskeletal adverse events emerged as the principal drug-related toxicity of marimastat, occurring in a dose- and time-dependent fashion. It was concluded that marimastat was associated with dose-dependent biological effects in cancer patients. The occurrence of musculoskeletal side-effects define 25 mg twice daily as the upper limit of the dose range for continuous use in further studies. Therefore, a dose range of 20 mg once daily to 25 mg twice daily seems appropriate for further studies, which should aim to demonstrate the efficacy of the drug in terms of conventional clinical end points and describe the long-term tolerability of this novel agent.  (+info)

Detection of occult lymph node metastases in esophageal cancer by minimally invasive staging combined with molecular diagnostic techniques. (3/2094)

BACKGROUND AND OBJECTIVES: Lymph node metastases are the most important prognostic factor in patients with esophageal cancer. Histologic examination misses micrometastases in up to 20% of lymph nodes evaluated. In addition, non-invasive imaging modalities are not sensitive enough to detect small lymph nodes metastases. The objective of this study was to investigate the use of reverse transcriptase-polymerase chain reaction (RT-PCR) of messenger RNA (mRNA) for carcinoembryonic antigen (CEA) to increase the detection of micrometastases in lymph nodes from patients with esophageal cancer. METHODS: RT-PCR of CEA mRNA was performed in lymph nodes from patients with malignant and benign esophageal disease. Each specimen was examined histopathologically and by RT-PCR and the results were compared. RESULTS: Metastases were present in 29 of 60 (48%) lymph nodes sample by minimally invasive staging from 13 patients with esophageal cancer when examined histopathologically. RT-PCR identified nodal metastases in 46 of these 60 (77%) samples. RT-PCR detected CEA mRNA in all 29 histologically positive samples and in 17 histologically negative lymph nodes. All lymph nodes from patients with benign disease (n = 15) were negative both histopathologically and by RT-PCR. The stage of two patients was reclassified based on the RT-PCR results, which identified lymph node spread undetected histopathologically. Both of these patients developed recurrent disease after resection of the primary tumor. CONCLUSIONS: RT-PCR is more sensitive than histologic examination in the detection of lymph node metastases in esophageal cancer and can lead to diagnosis of a more advanced stage in some patients. The combination of minimally invasive surgical techniques in combination with new molecular diagnostic techniques may improve our ability to stage cancer patients.  (+info)

The role of tumour markers in predicting skeletal metastases in breast cancer patients with equivocal bone scintigraphy. (4/2094)

Bone scintigraphy (BS) is commonly performed in the staging and postoperative monitoring of breast cancer. Nevertheless, due to low specificity it often demonstrates hot spots with equivocal interpretation, which may be misleading in the management of these patients. The aim of this study was to assess the value of a serum tumour marker panel in selecting among the patients with equivocal BS those with bone metastases. Between January 1986 and December 1995, 297 breast cancer patients were followed-up after mastectomy with serial determinations of a CEA-TPA-CA15.3 tumour marker panel, BS and liver echography. The tumour marker panel was used to select patients with equivocal BS for examination of suspicious bone areas by further imaging techniques. Up to December 1995, 158 (53%) patients showed an equivocal BS and 47 patients developed bone metastases. In the 158 patients with equivocal BS, prolonged clinical and imaging follow-up over 45 months (mean; range 12-120) was used to ascertain the presence or absence of bone metastases. In these 158 patients the negative predictive value and positive predictive value of the tumour marker panel to predict bone metastases was 97% and 75% respectively. This study shows that in breast cancer patients the CEA-TPA-CA15.3 tumour marker panel has a high value in selecting those patients with bone metastases, or at high risk of developing clinically-evident bone metastases, among the large number of subjects with equivocal BS.  (+info)

Serum YKL-40 and colorectal cancer. (5/2094)

YKL-40 is a mammalian member of the chitinase protein family. Although the function of YKL-40 is unknown, the pattern of its expression suggests a function in remodelling or degradation of extracellular matrix. High serum YKL-40 has been found in patients with recurrent breast cancer and has been related to short survival. In the present study we analysed YKL-40 in preoperative sera from patients with colorectal cancer and evaluated its relation to survival. Serum YKL-40 was determined by RIA in 603 patients. Survival after operation was registered, and median follow-up time was 61 months. Three hundred and forty patients died. Sixteen per cent of the patients with Dukes' A, 26% with Dukes' B, 19% with Dukes' C and 39% with Dukes' D had high serum YKL-40 levels (adjusted for age). Analysis of serum YKL-40 as a continuous variable showed an association between increased serum YKL-40 and short survival (P < 0.0001). Patients with high preoperative serum YKL-40 concentration had significantly shorter survival than patients with normal YKL-40 (HR = 1.7; 95% CI: 1.3-2.1, P < 0.0001). Multivariate Cox analysis including serum YKL-40, serum CEA, Dukes' stage, age and gender showed that high YKL-40 was an independent prognostic variable for short survival (HR = 1.4; 95% CI: 1.1-1.8, P = 0.007). These results suggest that YKL-40 may play an important role in tumour invasion.  (+info)

Intratumoral distribution of radiolabeled antibody and radioimmunotherapy in experimental liver metastases model of nude mouse. (6/2094)

The biodistribution and intratumoral distribution of radiolabeled anticarcinoembryonic antigen (CEA) monoclonal antibody in experimental liver metastases and the therapeutic effect of 131I-labeled anti-CEA antibody on the metastases were studied. METHODS: Three weeks after an intrasplenic injection of human colon cancer cells, mice received an intravenous injection of 125I- or 111In-labeled anti-CEA antibody F33-104. The biodistribution and tumor penetration of radiolabeled antibody were examined by using quantitative autoradiography. To evaluate the therapeutic effect, 5.55, 9.25 or 11.1 MBq (150, 250 or 300 microCi) 131I-labeled F33-104 were injected into groups of mice that had micrometastases smaller than 1 mm. Control groups were injected with phosphate-buffered saline or 131I-labeled control antibody. Mice were killed 3 wk later to determine the size of liver metastases. RESULTS: 1251-labeled F33-104 showed a high accumulation in the liver metastases (percentage of injected dose per gram of metastases [%ID/g] >24%, metastasis-to-liver ratio >9.8, metastasis-to-blood ratio >2.1); however, its accumulation was heterogeneous or peripheral in the nodules more than 1 mm in diameter. When the antibody dose was increased, antibody penetration was improved, but tumor uptake of radioactivity and specificity ratios decreased. In mice with large metastases, radioactivity in the normal tissue was lower than that in mice with small metastases, resulting in higher metastasis-to-background ratios. 111In-labeled antibody showed even higher tumor uptake than 125I-labeled antibody (>51 %ID/g). Metastases formation was suppressed in a dose-dependent manner by 131I-labeled F33-104 injection (5 of 8 mice had no macroscopic tumor after an injection of 5.55 MBq (150 microCi), and all mice had no visible metastasis after an injection of 9.25 or 11.1 MBq [250 or 300 microCi]), whereas tumor progression was seen in the control groups. CONCLUSION: Liver metastases had easy accessibility to the antibody. Micrometastases of less than 0.5 mm in diameter showed homogeneous intratumoral distribution of injected antibody and were successfully treated with 131I-labeled antibody. Very high uptake and satisfactory metastasis-to-liver ratios with 111In-labeled antibody suggest that the use of a radiometal with high beta-energy, such as 90Y or 188Re, is preferable for the successful radioimmunotherapy of metastases larger than 1 mm.  (+info)

Gastroenteropancreatic neuroendocrine tumor metastases to the thyroid gland: differential diagnosis with medullary thyroid carcinoma. (7/2094)

Neuroendocrine tumors (NET) of the thyroid gland are rare. Apart from medullary thyroid carcinoma (MTC), metastases of gastroenteropancreatic (GEP) NET may also occur. Features of six patients (five men, one female: age range, 39-67 years) with thyroid metastases from a GEP-NET are described. Thyroid metastases were bilateral in all patients and were associated with enlarged neck lymph nodes in five. In four cases, the thyroid tumor was either the first sign of the disease (n = 2) or was an isolated site of recurrence (n = 2). The tumors were well (n = 3) or poorly differentiated (n = 3). Five tumors for which the primary site could be determined corresponded to foregut-derived tumors (3 lungs, 1 thymus and 1 pancreatic NET). One tumor demonstrated calcitonin (CT) production as shown by immunohistochemistry and elevated plasma CT levels. However, the disease history and the clinical features strongly favored a metastasizing GEP-NET. No tumoral RET proto-oncogene mutation was found in this patient. The differential diagnosis between metastatic GEP-NET and MTC is crucial because prognosis, work-up, and treatment differ greatly.  (+info)

Roles of circulating carcinoembryonic antigen and calcitonin in diagnosis of medullary thyroid carcinoma: a comparative study. (8/2094)

Carcinoembryonic antigen (CEA) and calcitonin (CT) were simultaneously determined in sera and tumor tissues from 15 patients with medullary carcinoma of the thyroid (MCT). Serum CEA was increased in all but one patient, and CT did in all of them. Both levels were significantly related to the weight of excised tumor, but not to the presence of metastasis. Furthermore, a significant correlation was noted between the basal levels of CT and CEA. Both levels fell to normal after a radical operation had been performed. Tissue concentrations of CEA and CT in the MCT were more than 100 times those in hyperthyroidism, and the ratios of tissue over serum levels averaged 770 in CEA and 1000 in CT. In the calcium infusion test, CEA levels were not significantly changed in contrast with a distinct increase in CT levels. The results indicate that CEA and CT represent separate activities of the tumor cells, and that circulating CEA together with CT is a useful indicator in the diagnosis and follow-up of the disease.  (+info)

[54 Pages Report] Check for Discount on Carcinoembryonic Antigen-Related Cell Adhesion Molecule 5 (Carcinoembryonic Antigen or CEA or Meconium Antigen 100 or CD66e or CEACAM5) - Pipeline Review, H1 2016 report by Global Markets Direct. Global Markets Directs, Carcinoembryonic Antigen-Related Cell Adhesion Molecule...
Background: Cancer antigen 15-3 and carcinoembryonic antigen are used in clinical and laboratory diagnosis of metastatic breast cancer. Previous studies have noted conflicting results about the association between carcinoembryonic antigen and cancer antigen 15-3 in metastatic breast cancer. The present study examined serum tumor marker levels of carcinoembryonic antigen and cancer antigen 15-3 among patients with different subtypes of metastatic breast cancer.Methods: In this cross-sectional study, we assessed metastatic breast cancer patients diagnosed between 2005 and 2012 who referred to academic Hospitals affiliated with Mashhad University of Medical Sciences. The patients were selected by systematic randomization sampling. Demographic, clinical, pathological, and therapeutic data were collected from patients hospital records. Statistical analyses were performed by Statistical Package for the Social Sciences version 16.0 software.Results: A total of 298 eligible patients enrolled in the study.
Carcinoembryonic antigen-related cell adhesion molecule 7 is a protein that in humans is encoded by the CEACAM7 gene. ENSG00000007306 GRCh38: Ensembl release 89: ENSG00000280501, ENSG00000007306 - Ensembl, May 2017 Human PubMed Reference:. Thompson J, Zimmermann W, Nollau P, Neumaier M, Weber-Arden J, Schrewe H, Craig I, Willcocks T (Jan 1995). CGM2, a member of the carcinoembryonic antigen gene family is down-regulated in colorectal carcinomas. J Biol Chem. 269 (52): 32924-31. PMID 7806520. Thompson J, Seitz M, Chastre E, Ditter M, Aldrian C, Gespach C, Zimmermann W (May 1997). Down-regulation of carcinoembryonic antigen family member 2 expression is an early event in colorectal tumorigenesis. Cancer Res. 57 (9): 1776-84. PMID 9135022. Entrez Gene: CEACAM7 carcinoembryonic antigen-related cell adhesion molecule 7. Human CEACAM7 genome location and CEACAM7 gene details page in the UCSC Genome Browser. Douard R, Wind P, Sales JP, et al. (2006). Long-term prognostic value of detection of ...
Carcinoembryonic antigen-related cell adhesion molecule 8 (CEACAM8) also known as CD66b (Cluster of Differentiation 66b), is a member of the carcinoembryonic antigen (CEA) gene family. Its main function is cell adhesion, cell migration, and pathogen binding. CEACAM8 is expressed exclusively on granulocytes and used as granulocyte marker. Cluster of differentiation GRCh38: Ensembl release 89: ENSG00000124469 - Ensembl, May 2017 Human PubMed Reference:. Entrez Gene: CEACAM8 carcinoembryonic antigen-related cell adhesion molecule 8. Khan WN, Frängsmyr L, Teglund S, et al. (1992). Identification of three new genes and estimation of the size of the carcinoembryonic antigen family. Genomics. 14 (2): 384-90. doi:10.1016/S0888-7543(05)80230-7. PMID 1427854. Oikawa S, Inuzuka C, Kuroki M, et al. (1991). A specific heterotypic cell adhesion activity between members of carcinoembryonic antigen family, W272 and NCA, is mediated by N-domains. J. Biol. Chem. 266 (13): 7995-8001. PMID 2022629. Berling ...
TY - JOUR. T1 - Identification of a new carcinoembryonic antigen (CEA) family member in human fetal liver - Cloning and sequence determination of pregnancy- specific glycoprotein 7. AU - Khan, Wasif Noor. AU - Hammarström, Sten. PY - 1990/4/16. Y1 - 1990/4/16. N2 - The carcinoembryonic antigen gene family consists of the CEA- and the Pregnancy-Specific Glycoprotein- (PSG) subfamilies. Human fetal liver express several PSGs. Here we report cloning and sequencing of a new PSG subfamily member, PSG7. It is the fifth type of PSG found in fetal liver. PSG7 has the N-A1-A2-B2-C domain arrangement. Unlike other PSGs the N-terminal of PSG7 is unblocked. PSG7 has a cysteine in the C-terminal domain, which may allow dimerization. Variability analysis according to Wu and Kabat reveals that the region in the N-domain corresponding to complementarity determining region 3 of immunoglobulin is different between PSG subfamily members. Many members, including PSG7, contain the RGD sequence in this region. The ...
Expansions of gene families are predictive for ongoing genetic adaptation to environmental cues. We describe such an expansion of the carcinoembryonic antigen (CEA) gene family in certain bat families. Members of the CEA family in humans and mice are exploited as cellular receptors by a number of pathogens, possibly due to their function in immunity and reproduction. The CEA family is composed of CEA-related cell adhesion molecules (CEACAMs) and secreted pregnancy-specific glycoproteins (PSGs). PSGs are almost exclusively expressed by trophoblast cells at the maternal-fetal interface. The reason why PSGs exist only in a minority of mammals is still unknown. Analysis of the CEA gene family in bats revealed that in certain bat families, belonging to the subgroup Yangochiroptera but not the Yinpterochiroptera subgroup an expansion of the CEA gene family took place, resulting in approximately one hundred CEA family genes in some species of the Vespertilionidae. The majority of these genes encode secreted
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Looking for carcinoembryonic antigen? Find out information about carcinoembryonic antigen. A glycoprotein found in tissues of the fetal gut during the first two trimesters of pregnancy and in the peripheral blood of individuals with some forms of... Explanation of carcinoembryonic antigen
TY - JOUR. T1 - Immunohistochemical detection of carcinoembryonic antigen and P-glycoprotein in small cell lung cancer at diagnosis and relapse, with special reference to the tissue expression of CEA and response to chemotherapy. AU - Ohnoshi, T.. AU - Ueoka, H.. AU - Segawa, Y.. AU - Kiura, Katsuyuki. AU - Tabata, Masahiro. AU - Shibayama, T.. AU - Maeda, T.. AU - Miyatake, M.. AU - Takigawa, N.. AU - Kimura, I.. PY - 1992. Y1 - 1992. N2 - Small cell lung cancer (SCLC) is one of the most sensitive tumors to drug therapy; however, the majority of patients eventually relapse within a few years. Emergence of drug resistance is thought to play a major role in the dismal course of this disease. However, the mechanism of drug resistance in SCLC still remains obscure. Based on the clinical observation that a significant proportion of patients with relapsing tumor show an elevated serum carcinoembryonic antigen (CEA) concentration while serum neuron-specific enolase (NSE) concentration remains normal, ...
The Development of a Radioimmuno-Assay for Carcino-Embryonic Antigen with some Applications. Clinical Evaluation of Cercino-Ernbryonic Antigen, ...
BACKGROUND: Expansions of gene families are predictive for ongoing genetic adaptation to environmental cues. We describe such an expansion of the carcinoembryonic antigen (CEA) gene family in certain bat families. Members of the CEA family in humans and mice are exploited as cellular receptors by a number of pathogens, possibly due to their function in immunity and reproduction. The CEA family is composed of CEA-related cell adhesion molecules (CEACAMs) and secreted pregnancy-specific glycoproteins (PSGs). PSGs are almost exclusively expressed by trophoblast cells at the maternal-fetal interface. The reason why PSGs exist only in a minority of mammals is still unknown. RESULTS: Analysis of the CEA gene family in bats revealed that in certain bat families, belonging to the subgroup Yangochiroptera but not the Yinpterochiroptera subgroup an expansion of the CEA gene family took place, resulting in approximately one hundred CEA family genes in some species of the Vespertilionidae. The majority of ...
The NK killing activity is regulated by activating and inhibitory NK receptors. All of the activating ligands identified so far are either viral or stress-induced proteins. The class I MHC proteins are the ligands for most of the inhibitory NK receptors. However, in the past few years, several receptors have been identified that are able to inhibit NK killing independently of class I MHC recognition. We have previously demonstrated the existence of a novel inhibitory mechanism of NK cell cytotoxicity mediated by the homophilic carcinoembryonic Ag (CEA)-related cell adhesion molecule 1 (CEACAM1) interactions. In this study, we demonstrate that CEACAM1 also interacts heterophilically with the CEA protein. Importantly, we show that these heterophilic interactions of CEA and CEACAM1 inhibit the killing by NK cells. Because CEA is expressed on a wide range of carcinomas and commonly used as tumor marker, these results represent a novel role for the CEA protein enabling the escape of tumor cells from NK
|span style=font-family:Times,serif;font-size:9pt;>The CC1 monoclonal antibody specifically recognizes carcinoembryonic antigen-related cell adhesion molecule 1a (CEACAM1a or CEACAM1[a]), an allotypic form of CEACAM1 which is also known as CD66a, Murine hepatitis virus receptor (MHV-R), or Biliary glycoprotein 1 (BGP-1). Four known isoforms of mouse CD66a arise from alternative splicing of RNA transcripts encoded by |/span>|span style=font-style:italic;font-family:Times,serif;font-size:9pt;>Ceacam1|/span>|span style=font-family:Times,serif;font-size:9pt;>, a member of the carcinoembryonic antigen (CEA) family and Ig gene superfamily. These isoforms are type I transmembrane proteins that include a heavily glycosylated extracellular region with an N-terminal IgV-like domain and up to three IgC2-like domains followed by a transmembrane region and a cytoplasmic tail of relatively short (10 amino acids) or long (73 amino acids) length. The cytoplasmic tails enable interactions with other intracellular
TY - JOUR. T1 - The prognostic significance of preoperative tumor marker (CEA, CA15-3) elevation in breast cancer patients. T2 - data from the Korean Breast Cancer Society Registry. AU - Nam, Sang eun. AU - Lim, Woosung. AU - Jeong, Joon. AU - Lee, Seeyoun. AU - Choi, Jungeun. AU - Park, Heung Kyu. AU - Jung, Yong Sik. AU - Jung, Seung Pil. AU - Bae, Soo Youn. PY - 2019/1/1. Y1 - 2019/1/1. N2 - Purpose: Tumor markers such as carcinoembryonic antigen (CEA) and cancer antigen 15-3 (CA15-3) are widely used for monitoring breast cancer. However, the prognostic efficacy of preoperative elevations of CEA and CA15-3 levels in breast cancer patients remains controversial. Methods: We retrospectively analyzed the clinicopathological parameters of 149,238 patients in the Korean Breast Cancer Society Registry Database who underwent surgery between January 2000 and December 2015. Results: The patients with elevated CA15-3/CEA levels had worse overall survival (OS) than the patients with normal CA15-3/CEA ...
TY - JOUR. T1 - A re-evaluation of carcinoembryonic antigen (CEA) as a serum marker for breast cancer. T2 - A prospective longitudinal study. AU - Guadagni, F.. AU - Ferroni, P.. AU - Carlini, S.. AU - Mariotti, S.. AU - Spila, A.. AU - Aloe, S.. AU - DAlessandro, R.. AU - Carone, M. D.. AU - Cicchetti, A.. AU - Ricciotti, A.. AU - Venturo, I.. AU - Perri, P.. AU - Di Filippo, F.. AU - Cognetti, F.. AU - Botti, C.. AU - Roselli, M.. PY - 2001. Y1 - 2001. N2 - Purpose: Carcinoembryonic antigen (CEA) is still a widely used test for monitoring breast cancer, although recent reports discourage its routine use because of low sensitivity. This is a prospective study evaluating the efficacy of CEA and CA 15.3 in monitoring breast cancer. Experimental Design: Serum CEA and CA 15.3 were measured in 2191 patients with either benign (n = 738) or malignant (n = 1453) breast diseases. Five hundred and forty-nine patients were monitored during postsurgical follow-up for either a minimum of 5 years or until ...
Carcinoembryonic antigen (CEA) is a glycosylphosphatidylinositol (GPI)-cell surface anchored glycoprotein, first identified in tissue extracts from human colon tumors. The CEA family of genes is part of the immunoglobulin superfamily. In humans, the CEA family consists of 29 genes, 18 of which are normally expressed only during fetal development. Therefore, CEA is not detectable in the blood of healthy adults, but CEA expression is observed in many types of cancer ...
Carcinoembryonic antigen (CEA) is a glycosylphosphatidylinositol (GPI)-cell surface anchored glycoprotein, first identified in tissue extracts from human colon tumors. The CEA family of genes is part of the immunoglobulin superfamily. In humans, the CEA family consists of 29 genes, 18 of which are normally expressed only during fetal development. Therefore, CEA is not detectable in the blood of healthy adults, but CEA expression is observed in many types of cancer ...
The latest market report published by Credence Research, Inc. Global Carcinoembryonic Antigen (CEA) Market - Growth, Share, Opportunities, Competitive Analysis, and Forecast, 2016 - 2023, the carcinoembryonic antigen (CEA) market was valued at USD 1,624.2 Mn in 2015, and is expected to reach USD 2,787.3 Mn by 2023, expanding at a CAGR of 6.4% from 2016 to 2023.. Market Insights. According to Quest Diagnostics, CEA is an oncofetal glycoprotein present in the gastrointestinal tract and body fluids of the embryo and fetus. This antigen is also present in certain adult gastrointestinal cells, including the mucosal cells of the colorectum, and small amounts are present in blood. Market experts suggest that key growth drivers assisting the growth of CEA market comprises high prevalence of cancer, mounting global geriatric population base, high demand for minimally invasive diagnostic procedures in cancer and increasing application of CEA for diagnosis at several stages of cancer. In addition, a few ...
Diagnostic and prognostic value of carcinoembryonic antigen in pancreatic cancer: a systematic review and meta-analysis Qingcai Meng,1–3,* Si Shi,1–3,* Chen Liang,1–3,* Dingkong Liang,1–3 Wenyan Xu,1–3 Shunrong Ji,1–3 Bo Zhang,1–3 Quanxing Ni,1–3 Jin Xu,1–3 Xianjun Yu1–3 1Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 2Department of Oncology, Shanghai Medical College, 3Pancreatic Cancer Institute, Fudan University, Shanghai, People’s Republic of China *These authors contributed equally to this work Background: Carcinoembryonic antigen (CEA) is one of the most widely used tumor markers and is increased in 30%–60% of patients with pancreatic cancer. Although carbohydrate antigen 19-9 (CA19-9) is the most important serum biomarker in pancreatic cancer, the diagnostic and prognostic value of CEA is gradually being recognized.Materials and methods: The MEDLINE, EMBASE, and Web of Science databases were
Carcinoembryonic antigen (CEA) is a glycoprotein involved in...... Carcinoembryonic antigen (CEA) is a glycoprotein involved in cell adhesion. It is normally produced during fetal development, but the production of CEA stops before birth.
Carcinoembryonic Antigen Does this test have other names? CEA What is this test? This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of cancer cells. CEA is called a tumor marker because it gives information about cancer in your body. This test may help your doctor find out if your cancer treatment is working or if the cancer is returning after treatment. The test can be used with cancers of the colon and rectum, lung, breast, pancreas,...
TY - JOUR. T1 - Identification of HLA-A24 epitope peptides of carcinoembryonic antigen which induce tumor-reactive cytotoxic T lymphocyte. AU - Nukaya, I.. AU - Yasumoto, M.. AU - Iwasaki, T.. AU - Ideno, M.. AU - Sette, A.. AU - Celis, E.. AU - Takesako, K.. AU - Kato, I.. PY - 1999/1/5. Y1 - 1999/1/5. N2 - Carcinoembryonic antigen (CEA), which is expressed in several cancer types, is a potential target for specific immunotherapy. HLA-A24 is the most frequent allele among Japanese and is also frequently present in Asians and Caucasians. We tested CEA-encoded HLA-A24 binding peptides for their capacity to elicit anti-tumor cytotoxic T lymphocytes (CTL) in vitro. For this purpose, we used CD8+ T lymphocytes from peripheral blood mononuclear cells (PBMC) of a healthy donor and autologous peptide-pulsed dendritic cells as antigen-presenting cells. This approach enabled us to identify 2 peptides, QYSWFVNGTF and TYACFVSNL, which were capable of eliciting CTL lines that lysed tumor cells expressing ...
Free Online Library: France - CARCINOEMBRYONIC ANTIGEN. by Mena Report; Business, international Carcinoembryonic antigen CEA (Oncology)
In the present study we describe the establishment and characteristics of a new human tumor cell line (OV-1063) positive for carcinoembryonic antigen (CEA) originating from ovarian metastatic tumor cells. Analysis of the cultured cells during their in vitro adaptation period revealed while the primary culture exhibited a low proportion of CEA-positive cells, this proportion increased with culture passages and eventually more than 90% of the cells in the established line were CEA-positive. Thus, during the period of adaptation to in vitro growth, a selection for CEA-positive cells took place but the amount of CEA secreted per each positive cell seemed to be constant. Several tumor-associated characteristics were found positive on the established OV-1063 cell line. The in vitro growing cell line exhibited an abnormal chromosome pattern with a near-trisomy karyotype for some chromosomes, colony formation in soft agar as well as positive staining with a monoclonal antibody B38.1. Culture supernatants of the
FROM JAMA Oncology. A new study challenges the practice of measuring carcinoembryonic antigen (CEA) in patients with colon cancer prior to surgery, as is currently recommended by some guidelines. Researchers found that the levels do have predictive value about risk of recurrence when tested after surgery, but they challenge its use before. Consistent with the literature, our data show that postoperative CEA is more informative than preoperative CEA, the study authors wrote. Emphasis should be placed on postoperative CEA, and in the setting of modern high-quality imaging, we question the utility of measuring preoperative CEA.. The study, which was published online in JAMA Oncology , noted that testing for CEA - a colorectal cancer tumor marker - had more value prior to the current era of imaging because it could indicate the need to widen a search for metastases.. In the era of high-quality computed tomography (CT), the utility of measuring preoperative CEA is less obvious because an ...
CEA is a tumor-associated antigen abundantly expressed on several cancer types, including those naturally refractory to chemotherapy. The selection and characterization of human anti-CEA single-chain antibody fragments (scFv) is a first step toward the construction of new anticancer monoclonal antibodies designed for optimal blood clearance and tumor penetration. The human MA39 scFv, selected for its ability to recognize a CEA epitope expressed on human colon carcinomas, was first isolated from a large semi-synthetic ETH-2 antibody phage library, panned on human purified CEA protein. Subsequently, by in vitro mutagenesis of a gene encoding for the scFv MA39, a new library was established, and new scFv antibodies with improved affinity towards the CEA cognate epitope were selected and characterized. The scFv MA39 antibody was affinity-maturated by in vitro mutagenesis and the new scFv clone, E8, was isolated, typed for CEA family member recognition and its CEACAM1, 3 and 5 shared epitope characterized
Mouse monoclonal antibody raised against full length recombinant human Carcinoembryonic Antigen (CEA). Recombinant protein corresponding to full length human Carcinoembryonic Antigen. (MAB14723) - Products - Abnova
After last weeks post on therapeutic tumor infiltrating lymphocytes (TILs), we received a bunch of questions from readers.. I dont have time to answer them all in detail individually (sorry!), but it does provide an opportunity to review the evolving landscape and address some of them within the latest article.. It seems to be a good time to take a broader look at T cell manipulation, especially as it pertains to the application of TILs, chimeric antigen receptors (CAR), and T cell receptors (TCR).. Weve certainly come along way since the historic lecture in 1991 pictured right (photo: National Institutes of Health), but theres still some way to go before the full potential of cancer immunotherapy is reached.. ...
Background: Carcinoembryonic antigen (CEA) detection was evaluated in breast cancer (BC). The statistical correlation between the CEA mRNA and clinico-pathological features in the peripheral blood (PB) and tissue samples of BC was assessed. Materials and Methods: RT-PCR (Reverse transcription-polymerase chain reaction) analysis was applied to study the expression of CEA in PB of 30 healthy females and 30 patients with operable BC before receiving any therapy, as well as in the tissue of 30 BC patients. Results: CEA was observed in a number of normal subjects, but there was a significant difference between the patients and controls. The detected CEA mRNA from tissue samples were the same as PB of patients and a correlation was observed between the CEA mRNA in PB and tissue samples (Pearson chi-square = 8.62, P=0.003). In the PB, CEA mRNA was significantly different in HER-2 (-)/HR (+) compare with HER-2(+)/HR (-) tumor group (p=0.026). Finally, CEA in serum was also significantly different in HER
Increased serum CEA levels have been detected in persons with primary colorectal cancer and in patients with other malignancies involving the gastrointestinal tract, breast, lung, ovarian, prostatic, liver and pancreatic cancers. Elevated serum CEA levels have also been detected in patients with nonmalignant disease, especially patients who are older or who are smokers. CEA levels are not useful in screening the general population for undetected cancers. However, CEA levels provide important information about patient prognosis, recurrence of tumors after surgical removal, and effectiveness of therapy. ...
A novel magnetic nanoparticle-based electrochemical immunoassay of carcinoembryonic antigen (CEA) was designed as a model using CEA antibody-functionalized magnetic beads [DNA/Fe3O4/ZrO2; Fe3O4 (core)/ZrO2 (shell) nano particles (ZMPs)] as immunosensing probes. To design the immunoassay, the CEA antibody and O-phenylenediamine (OPD) were initially immobilized on a chitosan/nano gold composite membrane on a glassy carbon electrode (GCE/CS-nano Au), which was used for CEA recognition. Then, horseradish peroxidase (HRP)-labeled anti-CEA antibodies (HRP-CEA Ab2) were bound to the surface of the synthesized magnetic ZMP nanoparticles as signal tag. Thus, the sandwich-type immune complex could be formed between secondary antibody (Ab2) modified DNA/ZMPs nanochains tagged by HRP and GCE/CS-nano Au. Unlike conventional nanoparticle-based electrochemical immunoassays, the recognition elements of this immunoassay included both electron mediators and enzyme labels, which obviously simplifies the electrochemical
The global carcinoembryonic antigen (CEA) market is segmented on the basis of application type into ovarian cancer, colorectal cancer, pancreatic cancer, lung cancer, breast cancer, thyroid cancer and other cancers. In base year 2015, colorectal cancer dominated the overall market in terms of revenue. The key factors responsible for growth of CEA market are increase in number of population consuming alcohol, sedentary lifestyle, and high intake of saturated fats in all age groups. Moreover, rising preference for CEA test in cancer diagnosis and management is expected to assist its market growth in the near future.. In base year 2015, North America was observed as the largest CEA market due to high public awareness related to early cancer diagnosis, rising preference for minimally invasive cancer diagnosis tests and sophisticated health care facilities for cancer management. Incessant technological developments followed by new discoveries of specific antigens and biomarkers are anticipated to ...
This study was to determine the maximum-tolerated dose (MTD) and/or the optimal biological dose (OBD) as well as the optimal schedule for intravenous (IV) and subcutaneous (SC) administrations of RO7172508 as monotherapy, with or without obinutuzumab pre-treatment, in participants with locally advanced and/or metastatic carcinoembryonic antigen (CEA)-positive solid tumors who have progressed on standard of care (SOC) treatment, are intolerant to SOC, and/or are non-amenable to SOC. This study was conducted in two parts. Part I of the study consisted of an IV single participant cohort/multiple-ascending dose-escalation to evaluate the safety of RO7172508. Part II was a multiple participant cohort/multiple-ascending dose-escalation to define the MTD and/or OBD of RO7172508 administered as single agent, IV and/or SC, in participants with tumors that are expressing high as well as moderate/low-CEA. The study switched from Part I to Part II when the maximum planned dose for Part I was reached or the ...
CEA is a large glycoprotein (~200 kD) consisting of a single polypeptide chain with varying carbohydrate components. Elevated CEA levels can be detected in smokers, patients with colorectal polyps, pancreatitis, liver disease, pulmonary infectious, inflammatory bowel disease and renal failure. Clinically, CEA is used to determine tumor recurrence post-operatively following resection of colon carcinoma.
Tumor markers play an important role in the identification of human malignancies. It has been shown that the carcinoembryonic antigen (CEA, CEACAM5) is a promoter of metastasis in epithelial cancers that is widely used as a clinical marker. The aim of this study is to elucidate the network of genes that are involved in the CEA-induced liver metastasis. Previously, we have shown that CEA is accumulated in the lungs and livers of rats by interacting with their macrophages. We identified and cloned a new gene (CEAR) for the CEA-binding protein, which is located on the surface of fixed liver macrophages, Kupffer cells (Bajenova et al, 2001). It has been shown that the interaction of CEA and CEAR proteins increases the production of IL-1, IL-10, IL-6, TNF-α cytokines (Thomas et al, 2011). This interaction changes the expression of liver adhesion molecules that enhances the survival of cancer cells to the liver. We also suggested that CEA synthesis by cancer cells may influence the E-cadherin adhesion
Carcinoembryonic Antigen (CEA) / CD66 Antibody, Mouse Monoclonal Antibody [Clone SPM584 ] validated in WB, IHC, IF, FC (AH11034-7), Abgent
Carcinoembryonic Antigen (CEA) / CD66 Antibody - Without BSA and Azide, Mouse Monoclonal Antibody [Clone SPM551 ] validated in IHC-P, IF, FC (AH10385-100), Abgent
CEACAM6 (carcinoembryonic antigen related cell adhesion molecule 6), Authors: Dessen P. Published in: Atlas Genet Cytogenet Oncol Haematol.
Carcinoembryonic antigen (CEA) answers are found in the Guide to Diagnostic Tests powered by Unbound Medicine. Available for iPhone, iPad, Android, and Web.
Global carcinoembryonic antigen market value surpassed USD 1.9 billion in 2017 and is expected to witness more than 6.7% CAGR from 2018 to 2024 owing to increasing incidences for cancer disease, especially colorectal cancer.
In this study, a sandwich-type electrochemical (EC) immunosensor was proposed to detect a carcinoembryonic antigen (CEA) based on Au-graphene and [email protected] blue (MB). The Au nanoparticles (NPs)-vertical graphene (VG) electrode efficiently amplifies the response signal by immobilizing a large amount of the c
Definition Carcinoembryonic antigen (CEA) is an antigen (protein) present in very small quantities in adult tissue. A greater than normal amount may be suggestive of cancer. Normally, its values range
This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of cancer cells.
This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of cancer cells.
This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of cancer cells.
This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of cancer cells.
Buy CEACAM18 elisa kit, Canine Carcinoembryonic antigen-related cell adhesion molecule 18 (CEACAM18) ELISA Kit-NP_082512.1 (MBS7211769) product datasheet at MyBioSource, ELISA Kits
Ceacam12 (untagged) - Mouse carcinoembryonic antigen-related cell adhesion molecule 12 (Ceacam12), transcript variant 1, (10ug), 10 µg.
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We describe a high-throughput screening system to detect interactions between leucocyte surface proteins, taking into account that these interactions are usually of very low affinity. The method involves producing the extracellular regions of leucocyte proteins with tags so that they can be bound to nanoparticles to provide an avid reagent to screen over an array of 36 similar proteins immobilized using the Proteon XPR36 with detection by surface plasmon resonance. The system was tested using established interactions that could be detected without spurious binding. The ability to detect new interactions was shown by identifying a new interaction between carcinoembryonic antigen-related cell adhesion molecule 1 and carcinoembryonic antigen-related cell adhesion molecule 8.
Build: Wed Jun 21 18:33:50 EDT 2017 (commit: 4a3b2dc). National Center for Advancing Translational Sciences (NCATS), 6701 Democracy Boulevard, Bethesda MD 20892-4874 • 301-435-0888. ...
Hypohidrosis and anhidrosis are congenital or acquired conditions which are characterized by inadequate sweating. Acquired idiopathic generalized hypohidrosis/anhidrosis (AIGA) includes idiopathic pure sudomotor failure (IPSF), which has the following distinct features: sudden onset in youth, increased serum immunoglobulin E and responds favorably to systemic corticosteroid. No clinical markers reflecting the disease severity or activity have been established. Here, we report a case of AIGA in a Japanese patient successfully treated with repeated methylprednisolone pulse therapy. In this case, serum carcinoembryonic antigen (CEA) levels increased up to 19.8 ng/mL along with aberrant CEA immunoreactivity of eccrine sweat glands. Interestingly, the serum CEA level normalized as sweating improved with repeated methylprednisolone pulse therapy. Therefore, serum CEA level may serve as a useful clinical marker of hypohidrosis or anhidrosis.
Post-treatment alterations of serum cancer antigen 125, cancer antigen 19.9 and carcinoembryonic antigen levels in patients with gynecological malignancies in a tertiary care hospital in eastern India
Recently, molecule-targeting and bone-modifying agents have improved the treatment outcomes of lung cancer-derived metastatic spine tumors. Therefore, the prognostic factors for such tumors were examined, and novel scoring systems for predicting the life expectancy of patients with such tumors were proposed. In 207 patients with lung cancer-derived metastatic spine tumors (surgery 49; conservative therapy 158), we retrospectively examined the factors that influenced the post-treatment survival time (age, sex, the affected site, pathology, general condition, the number of extraspinal bone metastases, the number of spinal metastases, the presence/absence of major internal organ metastasis, paralysis state, the total Tokuhashi score, the serum alkaline phosphatase level, the serum carcinoembryonic antigen level, molecule-targeting drug treatment, and bone-modifying agent treatment). Based on the results, we devised novel scoring systems for predicting the prognosis of such patients. Univariate analyses
0062]The SMI sensor was fabricated using 0.83 μM solution of CEA molecules and its sensitivity was tested using LoVo colorectal cancer cells which are known to secret a significant amount of CEA while dividing and growing [Drewinko B., Romsdahl M. M., Yang L. Y., Ahearn M. J., Trujillo J. M., Cancer Res. 1976, 36, 467]. FIG. 2A shows the response of the sensor as a function of CEA concentration in Hams F12K medium along with the sensor response as a function of the hemoglobin concentration, as well as the non-imprinted electrode response to the CEA. From the figure it can be seen that no response is obtained when placed in a solution of hemoglobin proteins or in a solution of CEA when the sensor was not imprinted. On the other hand, for the imprinted electrode the inventors observe a rapid increase in the potential for CEA concentrations below ˜165 ng/mL, followed by a more gradual increase at higher concentrations. This change in potential reflects an accumulation of the surface charge ...
Background: Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1), an immunoglobulin (Ig)-related glycoprotein, serves as cellular receptor for a variety of Gram-negative bacterial pathogens associated with the human mucosa. In particular, Neisseria gonorrhoeae, N. meningitidis, Moraxella catarrhalis, and Haemophilus influenzae possess well-characterized CEACAM1-binding adhesins. CEACAM1 is typically involved in cell-cell attachment, epithelial differentiation, neovascularisation and regulation of T-cell proliferation, and is one of the few CEACAM family members with homologues in different mammalian lineages. However, it is unknown whether bacterial adhesins of human pathogens can recognize CEACAM1 orthologues from other mammals.,br /,Results: Sequence comparisons of the amino-terminal Ig-variable-like domain of CEACAM1 reveal that the highest sequence divergence between human, murine, canine and bovine orthologues is found in the β-strands comprising the bacteria-binding ...
Our previous in vitro data suggested that CEACAM1 is involved in angiogenesis. This is supported by a recent proteomic screen for cell membrane components expressed in newly formed tumor vessels and the fact that CEACAM1 expression is upregulated in synergy with other angiogenic factors in cardiac hypoxia (17, 19). To date, however, evidence for a causal implication of CEACAM1 in angiogenesis in vivo was lacking. In the present study, we report on 2 different genetic mouse models in which the angiogenic action of CEACAM1 has been investigated: in CEACAM1endo+ mice, the expression of CEACAM1-L was targeted to endothelia via the Tie2 promoter, and in Ceacam1-/- mice, the Ceacam1 gene was inactivated by targeted disruption (29). In addition, endothelial cells were transfected with cDNAs coding for WT CEACAM1-L and for CEACAM1-L mutants harboring amino acid substitutions in the cytoplasmic domain. In these experimental systems, we provide conclusive evidence that CEACAM1 is involved in angiogenesis ...
PMID: Gut. 2013 Apr 18. Epub 2013 Apr 18. PMID: 23598352. Abstract Title: Western diet induces dysbiosis with increased E coli in CEABAC10 mice, alters host barrier function favouring AIEC colonisation. Abstract: OBJECTIVE: Western diet is a risk factor for Crohns disease (CD). Carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) is abnormally expressed in CD patients. This allows adherent-invasive Escherichia coli (AIEC) to colonise the gut mucosa and leads to inflammation. We assessed the effects of a high fat/high sugar (HF/HS) Western diet on gut microbiota composition, barrier integrity and susceptibility to infection in transgenic CEABAC10 mice expressing human CEACAMs. DESIGN: Colonic microbiota composition and susceptibility of CEABAC10 mice to AIEC LF82 bacteria infection were determined in mice fed a conventional or HF/HS diet. Barrier function and inflammatory response were assessed by studying intestinal permeability, tight junction protein and mucin expression and ...
ORF of carcinoembryonic antigen-related cell adhesion molecule 20 (CEACAM20), transcript variant 4L in pENTER vector with CMV promoter and C-terminal FLAG and His tags.
TY - JOUR. T1 - Clinical profile of a new monoclonal antibody-based immunoassay for tissue polypeptide antigen. AU - Correale, M.. AU - Arnberg, H.. AU - Blockx, P.. AU - Bombardier, E.. AU - Castelli, M.. AU - Encabo, G.. AU - Gion, M.. AU - Klapdor, R.. AU - Martin, M.. AU - Nilsson, S.. AU - Reutgen, H.. AU - Ruggeri, G.. AU - Safi, F.. AU - Stegmuller, M.. AU - Vering, A.. PY - 1994. Y1 - 1994. N2 - Our preliminary evaluation of a new monoclonal antibody-based assay for tissue polypeptide antigen (TPA) has shown it to be clinically equivalent to the polyclonal antibody-based assay for TPA. The new assay (TPA-M) employs three monoclonal antibodies to epitopes on cytokeratins 8, 18 and 19. This multicenter, multinational study included 266 patients with newly diagnosed carcinomas of the lung, breast, large bowel and urinary bladder. TPA values from the two assays were compared with three other cytokeratin markers (TPS, CYFRA 21-1 and TPA(Cyk)) and with the established reference markers for ...
There is a growing list of tumor-associated fetal substances that show diagnostic promise and may in time have immunotherapeutic and prophylactic value (1, 2). Malignancies of the digestive system have received special attention in this regard, especially since 1965, when Gold and Freedman (3) identified a tumor-specific glycoprotein antigen in human colonic carcinomas. This so-called carcinoembryonic antigen (CEA) is also present in other adenocarcinomas of entodermally derived digestive system epithelium, as well as in human fetal and embryonic gut, pancreas, and liver during the first two trimesters of pregnancy (4). The antigen is a predominantly carbohydrate material with a molecular ...
A long-range physical map of the carcinoembryonic antigen (CEA) gene family cluster, which is located on the long arm of chromosome 19, has been constructed. This was achieved by hybridization analysis of large DNA fragments separated by pulse-field gel electrophoresis and of DNA from human/rodent somatic cell hybrids, as well as the assembly of ordered sets of cosmids for this gene region into contigs. The different approaches yielded very similar results and indicate that the entire gene family is contained within a region located at position 19q13.1-q13.2 between the CYP2A and the D19S15/D19S8 markers. The physical linkage of nine genes belonging to the CEA subgroup and their location with respect to the pregnancy-specific glycoprotein (PSG) subgroup genes have been determined, and the latter are located closer to the telomere. From large groups of ordered cosmid clones, the identity of all known CEA subgroup genes has been confirmed either by hybridization using gene-specific probes or by ...
The delayed cutaneous hypersensitivity reaction to carcinoembryonic antigen (CEA) was tested in 84 patients with different diseases including large bowel adenocarcinoma and breast carcinoma, with or without metastasis, liver cirrhosis and inflammatory or degenerative diseases. Positive skin test to …
Definition of carcinoembryonic antigen. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.
Carcinoembryonic antigen (CEA) and epithelial cadherin (E-cadherin) are considered as independent tumor markers in monitoring metastatic colorectal cancer. In this study we investigated the mechanism of CEA tumorigenesis, particularly the effect of CEA production on E-cadherin adherens junction protein complexes. As a model we used CEA-producing and non-producing MIP101 colorectal carcinoma cell lines. By immunoprecipitation we discovered the novel interactions between CEA and -catenin in the CEA excreting cells. No direct interaction has been detected between E-cadherin and CEA and no downregulation of neither -catenin nor E-cadherin in the CEA overexpressing cells. In addition, the functional interactions between E-cadherin and its binding protein- -catenin as well as between cateninand catenin have been impared in the CEA-producing cell lines. β-catenin is also a key factor in the Wnt signaling pathway that has essential functions in the regulation of cell growth ...
Carcinoembryonic antigen (CEA) and epithelial cadherin (E-cadherin) are considered as independent tumor markers in monitoring metastatic colorectal cancer. In this study we investigated the mechanism of CEA tumorigenesis, particularly the effect of CEA production on E-cadherin adherens junction protein complexes. As a model we used CEA-producing and non-producing MIP101 colorectal carcinoma cell lines. By immunoprecipitation we discovered the novel interactions between CEA and -catenin in the CEA excreting cells. No direct interaction has been detected between E-cadherin and CEA and no downregulation of neither -catenin nor E-cadherin in the CEA overexpressing cells. In addition, the functional interactions between E-cadherin and its binding protein- -catenin as well as between cateninand catenin have been impared in the CEA-producing cell lines. β-catenin is also a key factor in the Wnt signaling pathway that has essential functions in the regulation of cell growth ...
The carcinoembryonic antigen (CEA) family is composed of 29 genes tandemly arranged on chromosome 19q13.2. Based on nucleotide homologies, these genes are classified into 2 major subfamilies, the CEACAM and the pregnancy-specific glycoprotein (PSG) subgroups. The CEACAM-encoded proteins include CEA, CEACAM1, and other CEA gene members . CEACAM1 (Carcinoembryonic antigen related cell adhesion molecule 1; also BGP1, CD66a), is involved in the regulation of important biological processes, such asinsulin homeostasis , angiogenesis, and modulation of the immune response.. ...
Materials. Peridinin chlorophyll protein-labeled anti-HLA-DR, FITC-conjugated anti-CD80, phycoerythrin (PE)-conjugated anti-CD86, PE-conjugated anti-CD40, and FITC-labeled anti-CD8 were purchased from BD Biosciences PharMingen (Chicago, IL). FITC-conjugated anti-HLA-A2 monoclonal antibody (clone BB7.2) was from Serotec Ltd. (Oxford, United Kingdom). Anti-human CEA (CE05) was from Neomarker (Fremont, CA). Anti-HSP27 (F-4), anti-HSP40 (C-20), anti-HSP60 (H-1), anti-HSP70 (K-20), anti-Hsc70 (B6), anti-intercellular adhesion molecule-1 (C-19), anti-B7.1 (N-20), anti-B7.2 (C-19), anti-transferrin receptor (K-20), and anti-lysosome-associated membrane glycoprotein-3 were from Santa Cruz Biotechnology, Inc. (Santa Cruz, CA). Anti-MHC-I (HC10) was from Roswell Park Cancer Institute (Buffalo, NY). Horseradish peroxidase-coupled secondary antibodies were from Jackson ImmunoResearch (West Grove, PA). Recombinant mouse interleukin (IL)-2 and recombinant human IL-2 were commercially obtained from Sigma (St. ...
Receiver operating characteristic (ROC) curve was constructed to evaluate the diagnostic values. The results showed that AC096655.1-002 was significantly downregulated in gastric cancer tissues compared with paired adjacent non-tumorous tissues (P , 0.001). Its expression level was significantly correlated with lymph node metastasis (P , 0.001), distant metastasis (P , 0.001), tumor-node-metastasis stages (P , 0.001), and differentiation (P = 0.030). The area under the ROC curve of AC096655.1-002 was up to 0.731. For the detection of gastric cancer, the use of AC096655.1-002 showed a remarkable improvement compared with the use of serum carcinoembryonic antigen. These results indicated that lncRNA AC096655.1-002 may be a potential biomarker in the diagnosis of gastric carcinoma.. ...
Colorectal cancer is one of the deadliest malignancies with a grim prognosis and accounted for an estimated 55,000 deaths in the United States alone in 1998 (16) . A similar trend of increasing incidence and poor outcome have been reported in Japan also (17) . Among the several new treatment strategies to treat these patients, NSAIDs have drawn much attention in recent years. NSAIDs exhibited a significant antitumor effect in animal models (18 , 19) and colorectal polyps in humans (20 , 21) . Although the exact mechanism of this antitumor effect is not clear, it has been postulated that this effect could be partially attributable to the antiangiogenic effect through modulation of COX-2 activity (19) . Results from several experimental models indicate that COX-2 expression is associated with augmentation of neovascularization (11) . However, to date, it is not clear whether a similar correlation exists in the clinical setting in colorectal carcinoma patients. This is the first report showing ...
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Sensitive detection of cancer biomarkers is valuable for clinical diagnosis and treatment assessment of cancers. Herein, we report a simple smartphone-based double-channel fluorescent setup for immunoassay. Except the smartphone, the total cost of the detection device itself is about 80 $, including a laser
Review A Dictionary to Tumor Markers and The Methods of Estimation Rahul R Nair, Jerin K Johnson protein(AFP), Carcinoembryonic antigen(CEA), Pancreatic oncofetal antigen) Abstract Tumor markers are substances produced by tumor cells or by other cells of the body in response to cancer or certain benign (noncancerous) conditions. These substances can be found in the blood, in the urine, in the tumor tissue, or in other tissues. Different tumor markers are found in different types of cancer, and levels of the same tumor marker can be altered in more than one type of cancer. In addition, tumor marker levels are not altered in all people with cancer, especially if the cancer is early stage. Some tumor marker levels can also be altered in patients with noncancerous conditions. To date, researchers have identified more than a dozen substances that seem to be expressed abnormally when some types of cancer are present. Some of these substances are also found in other conditions and diseases. Scientists ...
What carcinoembryonic antigen level should trigger further investigation during colorectal cancer follow-up? A systematic review and secondary analysis of a randomised controlled trial - Health Technology Assessment (free). Source: ACP Journal Wise ($). The results suggest that (1) CEA testing should not be used alone as a triage test; (2) in year 1, testing frequency should be increased (to monthly for 3 months and then every 2 months); (3) the threshold for investigating a single test result should be raised to 10 µg/l; (4) after the second CEA test, decisions to investigate further should be made on the basis of the trend in CEA levels; (5) the optimal threshold for investigating the CEA trend falls over time; and (6) continuing smokers should not be monitored with CEA testing.. ...
TY - JOUR. T1 - Clinical Significance of Serum Assay of CYFRA21-1 in Primary Lung Cancer. AU - Horiguchi, Takahiko. AU - Tachikawa, Souichi. AU - Munekata, Eiji. AU - Takeuchi, Noriyuki. AU - Hirabuki, Kouichi. AU - Shiga, Mamoru. AU - Sugiyama, Masahiro. AU - Kondou, Rieko. AU - Miyazaki, Junichi. AU - Handa, Misuzu. PY - 1995. Y1 - 1995. N2 - A new tumor marker for primary lung cancer was used to investigate the clinical significance of the cytokeratin 19 fragment (CYFRA 21-1). The serum level was measured in 52 patients with primary lung cancer, 38 patients with other pulmonary diseases, and 22 normal volunteers. These values were compared with values of other tumor markers (CEA, SCC, and NSE). When the cut-off value was established as 3.5 ng/ml, the positivity rate of primary lung cancer was 65%, and the false positivity rate of other pulmonary diseases was 8%. The positivity rate was the highest in squamous cell carcinoma (88.9%) and for adenocarcinoma it was 61.5%. Immunohistochemical ...
The patients general condition must be studied and improved as much as possible, since the operation is one of the considerable magnitude. Unless there is evidence of acute or subacute obstruction, the patient is placed on a liquid diet for a day. Most patients receive a bowel preparation the afternoon or evening prior to surgery. Following complete evacuation of the colon with laxatives or purgative, appropriate nonabsorbable antibiotics may be given. Parenteral antibiotic coverage is given just prior to surgery. In the presence of low-lying tumors, it may be advisable to evaluate by cystoscopy whether or not the bladder or other portions of the genitourinary tract are involved. Basal carcinoembryonic antigen levels are determined before and after resection of the neoplasm. The extent of extramural spread or fixation to adjacent organs may be evaluated with endorectal ultrasound or MRI plus computed tomography (CT) imaging. ...
TY - JOUR. T1 - Identification of new epitopes from four different tumor-associated antigens. T2 - Recognition of naturally processed epitopes correlates with HLA-A*0201-binding affinity. AU - Keogh, E.. AU - Fikes, J.. AU - Southwood, S.. AU - Celis, E.. AU - Chesnut, R.. AU - Sette, A.. PY - 2001/7/15. Y1 - 2001/7/15. N2 - Forty-two wild-type and analogue peptides derived from p53, carcinoembryonic Ag, Her2/neu, and MAGE2/3 were screened for their capacity to induce CTLs, in vitro, capable of recognizing tumor target lines. All the peptides bound HLA-A*0201 and two or more additional A2 supertype alleles with an IC50 of 500 nM or less. A total of 20 of 22 wild-type and 9 of 12 single amino acid substitution analogues were found to be immunogenic in primary in vitro CTL induction assays, using normal PBMCs and GM-CSF/IL-4-induced dendritic cells. These results suggest that peripheral T cell tolerance does not prevent, in this system, induction of CTL responses against tumor-associated Ag ...
TY - JOUR. T1 - Heterogeneity of human colon carcinoma. AU - Brattain, M. G.. AU - Levine, A. E.. AU - Chakrabarty, S.. AU - Yeoman, L. C.. AU - Willson, J. K.V.. AU - Long, B.. PY - 1984/9. Y1 - 1984/9. N2 - In order to better understand colon cancer, a model system reflecting the heterogenous nature of this disease was developed and used in the development of new cytotoxic and non-cytotoxic therapeutic approaches. A large bank of colon carcinoma cell lines was established from primary human colon carcinomas and grouped based on their tumorigenicity in athymic mice, their growth rates in soft agarose and in tissue culture, and their secreted levels of carcinoembryonic antigen. These cell lines were later characterized based on cell surface proteins and antigens detected with antisera raised against a differentiated colon carcinoma cell line. Although these biochemical markers correlated with the biological classification of these cell lines, there was still extensive heterogeneity within each ...
In current surgical practice, indocyanine green (ICG) is commonly used for visualization of biliary structures and to confirm adequate perfusion of tissues. Although ICG is generally not used in clinical practice techniques for colo-rectal cancer, the use of ICG creates a technological plat-form for novel fluorophores to be introduced to the operating room for various surgical fields. In comparison with ICG, tumor-specific fluorescent o-Phenanthroline could pro-vide clearer margins between normal tissue and cells overexpressing specific antigens.3 This has been demon-strated in previous studies comparing ICG fluorescence with anti-carcinoembryonic antigen (CEA) antibodies in colon cancer.3,4 Anti-CEA antibodies have also been successful at labeling metastases in patient-derived pancreatic cancer mouse models.5 However, not all colon cancers express CEA and therefore other targets are needed ...
Roche (SIX: RO, ROG; OTCQX: RHHBY) today announced results from two Phase I studies evaluating the novel cancer immunotherapy CEA-TCB (RO6958688; RG7802), a molecule that binds T-cells and tumour cells simultaneously. CEA-TCB was studied in patients with carcinoembryonic antigen (CEA)-positive solid tumours, including microsatellite stable (MSS) metastatic colorectal cancers (mCRC) that overexpress CEA and progressed after at least two prior chemotherapy regimens.1 The studies demonstrated encouraging anti-tumour activity of CEA-TCB as a monotherapy, which was further enhanced in combination with TECENTRIQ® (atezolizumab). In the monotherapy, out of 31 patients with mCRC treated with CEA-TCB doses of 60mg or above, 14 patients (45%) showed either partial response (n=2, 6%) or stable disease (n=12, 39%). For the combination, of 25 patients treated with doses of 5-160mg of CEA-TCB, 11 patients with MSS mCRC were treated at doses shown to induce tumour lesion inflammation (80 and 160 mg). Nine of ...
Doctors give unbiased, helpful information on indications, contra-indications, benefits, and complications: Dr. Cohen on what is the cancer marker lab test cea something: The CEA (carcinoembryonic antigen) test is a colon cancer tumor marker. As with most tumor markers, it is not used as a screening test for colon cancer (in other words, it is not used to find the cancer because of a relatively high false positive rate) but it is used to monitor the cancer once it has been diagnosed. This is particularly useful for treated colon cancer to see if the tumor reoccurs.
CD4 (T4) is a single chain transmembrane glycoprotein and belongs to immunoglobulin supergene family. In extracellular region there are 4 immunoglobulin-like domains (1 Ig-like V-type and 3 Ig-like C2-type). Transmembrane region forms 25 aa, cytoplasmic tail consists of 38 aa. Domains 1,2 and 4 are stabilized by disulfide bonds. The intracellular domain of CD4 is associated with p56Lck, a Src-like protein tyrosine kinase. It was described that CD4 segregates into specific detergent-resistant T-cell membrane microdomains ...
The biologic and clinical significance of the oncofetal antigens carcinoembryonic antigen (CEA) and alpha1-fetoprotein (AFP) are discussed. Although the current assays for these molecules are not tumor-specific, measurement of these molecules in the circulation of cancer patients is useful either for tumor diagnosis or for management of the cancer patient in the postoperative or post-chemotherapy state. An approach to increasing the specificity of the CEA radioimmunoassay is described. ...
Considerations for a carcinoembryonic antigen test include smoking, cirrhosis and other factors that can raise CEA levels in the blood of those who do not have cancer, explains Drexel University...
Etubics Corporation is a clinical stage biotechnology company focused on developing immunotherapeutics for the treatment of cancer and vaccines against infectious diseases. The Company has a pipeline of product candidates based on our proprietary, advanced generation viral vector platform, the Etubics Platform, to generate both T cell mediated and antibody responses and its complimentary manufacturing human-based cell line. The Companys lead product, ETBX-011, has completed Phase 1/2 clinical trials in metastatic colorectal cancer patients. ETBX-011 targets carcinoembryonic antigen (CEA) which is expressed in many types of cancer and we believe the product has broad clinical application. Etubics Corporation has a Cooperative Research and Development Agreement (CRADA) with the National Cancer Institute, a part of the National Institutes of Health, to investigate a multi-targeted immunotherapy approach containing three tumor-associated antigens including ETBX-011. These three antigens are highly ...
Normal and malignant cells release a variety of different vesicles into their extracellular environment. The most prominent vesicles are the microvesicles (MVs, 100-1 000 nm in diameter), which are shed of the plasma membrane, and the exosomes (70-120 nm in diameter), derivates of the endosomal system. MVs have been associated with intercellular communication processes and transport numerous proteins, lipids and RNAs. As essential component of immune-escape mechanisms tumor-derived MVs suppress immune responses. Additionally, tumor-derived MVs have been found to promote metastasis, tumor-stroma interactions and angiogenesis. Since members of the carcinoembryonic antigen related cell adhesion molecule (CEACAM)-family have been associated with similar processes, we studied the distribution and function of CEACAMs in MV fractions of different human epithelial tumor cells and of human and murine endothelial cells. Here we demonstrate that in association to their cell surface phenotype, MVs released ...
Among patients who had undergone curative surgery for primary colorectal cancer, the screening methods of computed tomography and carcinoembryonic antigen each provided an improved rate of surgical treatment of cancer recurrence ...
Our literature search identified 93 studies evaluating an overall of 70 different blood markers for CRC, including long discussed ones like carcinoembryonic antigen and carbohydrate antigens, as well as newly introduced ones like proteins identified through MS analysis. A broad timeframe with first studies from 1979 (75) to 2006 (49, 73, 74, 77, 81, 89-91, 102) was covered. The majority of studies evaluated protein markers, but in recent years, an interesting number of studies also evaluated genetic and epigenetic markers.. Overall, a broad range of sensitivity and specificity was reported for the various markers. A direct comparison of results from different studies is complicated due to the diverse populations used (different age, origin, normal, or diseased controls), the diverse number of markers evaluated (single versus combined markers) and use of different cutoff points for the same marker (M2-PK and CEA). Furthermore, the majority of markers were evaluated in only one study, especially ...
Background: To analyze the expression of Metadherin (MTDH), Carcinoembryonic Antigen related Cell adhesion Molecule 1 (CEACAM1) and Hepatitis B virus ..
A soft agarose clonogenic assay is presented which has been optimized for the growth of human gastrointestinal adenocarcinomas. Samples from 15 gastric and colonic solid tumors and from 2 noncancerous stomachs (control cultures) were disaggregated by treatment with collagenase at 37° overnight. Colonies appeared 10 to 15 days after plating, with a cloning efficiency between 0 and 0.82%, which was markedly improved by a fibroblastic feeder layer. The results suggest a correlation between cloning efficiency and the degree of differentiation of the initial tumor. Histochemistry, electron microscopy, and a carcinoembryonic antigen immunofluorescence assay showed that the colonies consisted of cells with the same characteristics as those of the original tumor. This colony formation assay appears to be potentially useful for assessing the stem cell pool of gastrointestinal tumors. It will be valuable for studying their response to chemotherapeutic agents in vitro. This clonogenic assay may also ...
On our first appointment, a month ago now, Simon had been getting on and off what is referred to as right upper quadrant pain, the decision was made at that time for Simon to have a base line CT scan, this has taken a month to come through and was due today.. Some science stuff , CEA - anyone that has been through bowel cancer treatment will be aware that there are certain blood tests you can have done that can measure carcinoembryonic antigens (CEA) in the blood. These are usually proteins that are produced by certain types cancers. Very scientific but for us we just concentrate on a number, under 5 is normal. Prior to Simons initial surgery in 2016 his was 11, and since then it has consistently been about 1.5-1.75, even prior to the surgery in Basingstoke, now you have the detail lets get to this weeks appointment.. Everything was going pretty well, we were happy, Doctor was happy and we were going through our usual checklist of question and answers, How have you been, what side effects ...
CEA (carcinoembryonic antigen) has an identity with an antigen of the mucous colic embryo, from which it takes its name, and is associated with colorectal
Thompson, John A.; Mössinger, S.; Reichhardt, V.; Engels, U.; Beauchemin, N.; Komoss, F.; Kleist, Sabine von und Zimmermann, Wolfgang (9. September 1993): A Polymerase-chain-reaction Assay for the Specific Identification of Transcripts Encoded by Individual Carcinoembryonic Antigen (CEA)-gene-family Members. In: International Journal of Cancer, Vol. 55, Nr. 2: S. 311-319 [PDF, 1MB] ...
Antibodies, Antigen, Carcinoembryonic Antigen, Chorionic Gonadotropin, Gonadotropin, Hormone, Human, Human Chorionic Gonadotropin, Immobilization, Immobilized Proteins, Immunoglobulin, Immunoglobulin G, Ionic Strength, Isoelectric Points, Magnetic, Microbeads, Nanoparticles, Orientation, Peroxidase, PH
CKs are expressed at high levels in epithelial cells, and expression is usually maintained or even increased after oncogenic transformation (34) . CKs can be detected in serum from cancer patients and are widely used serum tumor markers (1 , 2) . The mechanisms of release of soluble CKs into the extracellular compartment have been unclear. It was shown recently that apoptosis leads to the release of soluble CK fragments from tumor cells, suggesting that the widely used CK tumor markers tissue polypeptide antigen, tissue-polypeptide-specific antigen, and CYFRA 21-1 may reflect tumor apoptosis (14, 15, 16) . The results of the present study confirmed previous findings of release of soluble CK18 to the extracellular compartment during apoptosis (Fig. 3) ⇓ , but also showed that large amounts of soluble CK18 were released from cells induced to undergo necrosis (Fig. 2) ⇓ . Release of CK18 is therefore a marker of epithelial cell death and not a specific marker of apoptosis.. The in vitro data ...
In humans, the carcinoembryonic antigen family consists of 29 genes, 18 of which are normally expressed. The following is a ... Carcinoembryonic+Antigen at the US National Library of Medicine Medical Subject Headings (MeSH) CEA at Lab Tests Online CEA: ... Carcinoembryonic antigen (CEA) describes a set of highly related glycoproteins involved in cell adhesion. CEA is normally ... Asad-Ur-Rahman F, Saif MW (June 2016). "Elevated Level of Serum Carcinoembryonic Antigen (CEA) and Search for a Malignancy: A ...
... is a nine amino acid peptide fragment of carcinoembryonic antigen (CEA), a protein that is ... Synonyms: CAP-1 Carcinoembryonic Antigen Peptide-1 Carcinoembryonic Peptide-1 CEA Peptide 1 CEA Peptide 9-mer National Cancer ... Institute Definition of carcinoembryonic antigen peptide 1 v t e v t e (Articles with short description, Short description ...
Fletcher RH (1986). "Carcinoembryonic antigen". Ann. Intern. Med. 104 (1): 66-73. doi:10.7326/0003-4819-104-1-66. PMID 3510056 ... the sensitivity and specificity change between different sub-groups of patients may be found with the carcinoembryonic antigen ...
Clarke, C.; Hine, K. R.; Dykes, P. W.; Whitehead, T. P.; Whitfield, A. G. (1980). "Carcinoembryonic Antigen and Smoking". ...
In addition, she showed that carcinoembryonic antigen forms dimers in solution and was the first to demonstrate that human Band ... Lisowska, Elwira; Krop-Watorek, Anna; Sedlaczek, Pawel (1983). "The dimeric structure of carcinoembryonic antigen (CEA)". ... For many years Lisowska worked on the M and N antigens. She identified that these antigens were carried by the glycosylated ... which is the cause of NOR polyagglutination and a member of the human P1PK antigen system. and showed that the NOR antigen is ...
Costanza ME, Das S, Nathanson L, Rule A, Schwartz RS (1974). "Carcinoembryonic antigen.Report of a screening study". Cancer. 33 ... Costanza's early research was on the carcinoembryonic antigen as a screening tool for cancer. Her subsequent research compared ... Costanza, Mary E.; Pinn, Vivian; Schwartz, Robert S.; Nathanson, Larry (1973-09-06). "Carcinoembryonic Antigen-Antibody ... Costanza, Mary E.; Pinn, Vivian; Schwartz, Robert S.; Nathanson, Larry (1973-09-06). "Carcinoembryonic Antigen-Antibody ...
Oncofetal antigens are another important class of tumor antigens. Examples are alphafetoprotein (AFP) and carcinoembryonic ... mutant protein antigens, oncogenic viral antigens, cancer-testis antigens and vascular or stromal specific antigens. Tissue ... and some viral antigens are also cancer antigens. Cancer-testis antigens are antigens expressed primarily in the germ cells of ... Certain tumor antigens are thus used as tumor markers. More importantly, tumor antigens can be used in cancer therapy as tumor ...
Carcinoembryonic Antigen(CEA) at MedicineNet Luboldt, Hans-Joachim; Schindler, Joachim F.; Rübben, Herbert (2007). "Age- ... June 2008). "Reference intervals for carcinoembryonic antigen (CEA), CA125, MUC1, Alfa-foeto-protein (AFP), neuron-specific ... Specific Reference Ranges for Prostate-Specific Antigen as a Marker for Prostate Cancer". EAU-EBU Update Series. 5 (1): 38-48. ...
"Carcinoembryonic antigen: evidence for multiple antigenic determinants and isoantigens". Proceedings of the National Academy of ...
"Specific binding members for human carcinoembryonic antigen, materials and methods". Patents.google.com. Retrieved 1 August ... Specific binding members for human carcinoembryonic antigen, materials and methods EP0906571 - Labelling and selection of ...
... the nonspecific cross-reacting antigen of carcinoembryonic antigen". Cancer Res. 57 (24): 5460-5464. PMID 9407950. Kawaharata H ... p95, or NCA-90, is related to carcinoembryonic antigens, which have been found to reduce drug toxicity by Kawaharata et al. NCI ... Hinoda Y, Itoh F, Endo T, Oikawa S, Nakazato H, Imai K (July 1997). "Decreased sensitivity of carcinoembryonic antigen cDNA- ...
Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) also known as CD66e (Cluster of Differentiation 66e), is a ... August 1987). "Carcinoembryonic antigen family: expression in a mouse L-cell transfectant and characterization of a partial ... "Entrez Gene: CEACAM5 carcinoembryonic antigen-related cell adhesion molecule 5". Beauchemin N, Arabzadeh A (December 2013). " ... PDBe-KB provides an overview of all the structure information available in the PDB for Human Carcinoembryonic antigen-related ...
Carcinoembryonic antigen-related cell adhesion molecule 8 (CEACAM8) also known as CD66b (Cluster of Differentiation 66b), is a ... "Entrez Gene: CEACAM8 carcinoembryonic antigen-related cell adhesion molecule 8". Khan WN, Frängsmyr L, Teglund S, et al. (1992 ... 2002). "Carcinoembryonic antigen-related cell adhesion molecule 1 expression and signaling in human, mouse, and rat leukocytes ... PDBe-KB provides an overview of all the structure information available in the PDB for Human Carcinoembryonic antigen-related ...
Carcinoembryonic antigen-related cell adhesion molecule 7 is a protein that in humans is encoded by the CEACAM7 gene. ... "Entrez Gene: CEACAM7 carcinoembryonic antigen-related cell adhesion molecule 7". Human CEACAM7 genome location and CEACAM7 gene ... 2000). "Carcinoembryonic antigen family members CEACAM6 and CEACAM7 are differentially expressed in normal tissues and ... 1989). "Analysis of the size of the carcinoembryonic antigen (CEA) gene family: isolation and sequencing of N-terminal domain ...
... is a member of the carcinoembryonic antigen (CEA) gene family.. This gene encodes a member of the family of carcinoembryonic ... Carcinoembryonic antigen-related cell adhesion molecule 3 (CEACAM3) also known as CD66d (Cluster of Differentiation 66d), ... "Entrez Gene: CEACAM3 carcinoembryonic antigen-related cell adhesion molecule 3". CEACAM3: an innate immune receptor directed ... 1989). "Analysis of the size of the carcinoembryonic antigen (CEA) gene family: isolation and sequencing of N-terminal domain ...
Sajid KM, Chaouachi K, Mahmood R (May 2008). "Hookah smoking and cancer: carcinoembryonic antigen (CEA) levels in exclusive/ ... Carcinoembryonic antigen (CEA) is a marker found in several forms of cancer. Levels in exclusive hookah smokers were lower ...
... and a member of the carcinoembryonic antigen (CEA) gene family. This gene encodes a member of the carcinoembryonic antigen (CEA ... "Immunochemical analysis of carcinoembryonic antigen (CEA)-related antigens differentially localized in intracellular granules ... Carcinoembryonic antigen-related cell adhesion molecule 1 (biliary glycoprotein) (CEACAM1) also known as CD66a (Cluster of ... "Entrez Gene: CEACAM1 carcinoembryonic antigen-related cell adhesion molecule 1 (biliary glycoprotein)". Hoek KS, Schlegel NC, ...
In these trials AAV has been used to deliver Carcinoembryonic antigen (CEA). CEA is normally produced in the gastric tissue of ...
"Immunologic characterization and molecular profile of carcinoembryonic antigen detected by monoclonal antibodies". J Immunol. ... He is well known for the discovery of a melanoma-related antigen (later, it is called, Chondroitin Sulfate Proteoglycan-4 ( ... Imai K, Ng AK, Ferrone S (1981). "Characterization of monoclonal antibodies to human melanoma-associated antigens". J Natl ...
These genes belong to a specific gene family; they are a subgroup of the carcinoembryonic antigen (CEA) family of genes. CEAs ... Khan WN, Hammarström S (1989). "Carcinoembryonic antigen gene family: molecular cloning of cDNA for a PS beta G/FL-NCA ... Khan WN, Osterman A, Hammarström S (May 1989). "Molecular cloning and expression of cDNA for a carcinoembryonic antigen-related ... Zoubir F, Khan WN, Hammarström S (May 1990). "Carcinoembryonic antigen gene family members in submandibular salivary gland: ...
Speers WC, Picaso LG, Silverberg SG (1983). "Immunohistochemical localization of carcinoembryonic antigen in microglandular ...
Sajid, Khan; Chaouachi, Kamal; Mahmood, Rubaida (2008). "Full text , Hookah smoking and cancer: carcinoembryonic antigen (CEA) ...
Carcinoembryonic antigen blood level measurements follow the same timing, but are only advised for people with T2 or greater ... Steele N, Haigh R, Knowles G, Mackean M (September 2007). "Carcinoembryonic antigen (CEA) testing in colorectal cancer follow ... It has been suggested that the presence of antibodies to Streptococcus bovis/gallolyticus antigens or the antigens themselves ...
... carcinoembryonic antigen) and AFP (alpha fetoprotein). The genes for these tumor markers may be used as promoter genes for ... February 2012). "Exposed proliferation antigen 210 (XPA-210) in renal cell carcinoma (RCC) and oncocytoma: clinical utility and ... cytosolic thymidine kinase as compared to proliferating cell nuclear antigen in patients with colorectal carcinoma". Anticancer ... immunohistochemical detection of cytosolic thymidine kinase and proliferating cell nuclear antigen in breast cancer". Cancer ...
... a putative intercellular adhesion molecule closely related to carcinoembryonic antigen". The Journal of Experimental Medicine. ... Human CD Antigen Chart (eBioscience) Mouse CD Antigen Chart (eBioscience) Human PECAM1 genome location and PECAM1 gene details ... a putative intercellular adhesion molecule closely related to carcinoembryonic antigen". The Journal of Experimental Medicine. ... Malignant endothelial cells also commonly retain the antigen, so that CD31 immunohistochemistry can also be used to demonstrate ...
"Immunoglobulin transcripts and molecular history of a hybridoma that produces antibody to carcinoembryonic antigen". Gene. 40 ( ...
"Immunological heterogeneity of carcinoembryonic antigen: antigenic determinants on carcinoembryonic antigen distinguished by ... Arcitumomab recognizes carcinoembryonic antigen (CEA), an antigen over-expressed in 95% of colorectal cancers. Consequently, ... anti-carcinoembryonic antigen antibodies labeled with 99mTc: the role of metabolism and kinetics". Cancer Research. 55 (23 ... cells in colorectal cancer patients by nested reverse transcription-polymerase chain reaction for carcinoembryonic antigen ...
Another example is carcinoembryonic antigen, which is elevated in people with colon cancer and other tumors. Other oncofetal ... also known as oncofetal antigen protein). Oncofetal antigens are promising targets for vaccination against several types of ... Oncofetal antigens are proteins which are typically present only during fetal development but are found in adults with certain ... One example of an oncofetal antigen is alpha-fetoprotein, which is produced by hepatocellular carcinoma and some germ cell ...
A second marker, carcinoembryonic antigen (CEA), also produced by medullary thyroid carcinoma, is released into the blood and ... The prognostic value of measuring calcitonin and carcinoembryonic antigen (CEA) concentrations in the blood was studied in 65 ... "Prognostic impact of serum calcitonin and carcinoembryonic antigen doubling-times in patients with medullary thyroid carcinoma ... "Prognostic impact of serum calcitonin and carcinoembryonic antigen doubling-times in patients with medullary thyroid carcinoma ...
"Prognostic impact of serum calcitonin and carcinoembryonic antigen doubling-times in patients with medullary thyroid carcinoma ...
... discovered Carcinoembryonic antigen Jules T. Freund (1890-1960) Sankar Ghosh John Grange (1943-2016) Waldemar Haffkine (1860- ... isolation and partial characterization of A and B blood antigens Jian Zhou (1957-1999), with co-inventor Ian Frazer has ...
PRRs also mediate the initiation of antigen-specific adaptive immune response and release of inflammatory cytokines. The ... In addition, many of acquired nonself surfaces e.g. carcinoembryonic/oncofetal type neoantigens carrying "internal danger ... Tissue Antigens. 68 (3): 193-209. doi:10.1111/j.1399-0039.2006.00649.x. PMC 7169806. PMID 16948640. Bahar O, Pruitt R, Luu DD, ... Blood DC antigen 2 (BDCA2) ( CLEC4C), and Mincle i.e. macrophage‑inducible C‑type lectin (CLEC4E). The nomenclature (mannose ...
... carcinoembryonic antigen - carrier - carrier protein - CAS registry number - casein - catabolism - catalyst - catalytic domain ... CCR5 receptor - CD4 antigen - CD45 antigen - CD95 antigen - CDC28 protein kinase - cell - cell adhesion molecule - cell biology ... T-cell antigen receptors - tachykinin - tachykinin receptor - talin protein - tandem repeat sequence - taste bud - TATA box - ... alpha-beta T-cell antigen receptor - alpha-fetoprotein - alpha-globulin - alpha-macroglobulin - alpha-MSH - Ames test - amide ...
In 1968, he co-discovered with Samuel O. Freedman the carcinoembryonic antigen (CEA), which resulted in a blood test used in ...
... matrix metalloproteinases and tumour markers such as carcinoembryonic antigen. Pleural fluid mesothelin has a sensitivity of 71 ...
... with indium-111 or technetium-99m labelled epitopes of the carcinoembryonic antigen. The antibody capromab pendetide reacts ... with prostate membrane specific antigen (PMSA) and can be labelled with 111In. Indium-111 WBC scan Scintigraphy "Imaging ...
This family also interacts with surfactant protein D. The carcinoembryonic antigen-related cell adhesion (CEACAM) family ... Zimmermann, Wolfgang; Kammerer, Robert (December 2016). "Coevolution of paired receptors in Xenopus carcinoembryonic antigen- ... "CD94-NKG2A recognition of human leukocyte antigen (HLA)-E bound to an HLA class I leader sequence". Journal of Experimental ... "Hagfish Leukocytes Express a Paired Receptor Family with a Variable Domain Resembling Those of Antigen Receptors". The Journal ...
September 2007). "The cell adhesion receptor carcinoembryonic antigen-related cell adhesion molecule 1 regulates ... The encoded protein also interacts with proliferating cell nuclear antigen. Some transcripts of this gene overlap in a tail-to- ... that interacts with the p50 subunit of DNA polymerase delta and proliferating cell nuclear antigen". The Journal of Biological ...
Hemoglobin decrease Liver function test: ALP elevated, bilirubin elevated, albumin decrease Carcinoembryonic antigen for ...
... the intraepithelial lymphocytic infiltration characteristic of celiac sprue and stains positive for carcinoembryonic antigen ( ...
... like the carcinoembryonic antigen (CEA) or the prostate specific antigen (PSA). Novel strategies will be required to identify ... Loss of tumor antigen expression is another cause of escape from immune recognition. This occurs because most tumor antigens ... Most tumor antigens are not oncoantigens, either because they are intracellular molecules, like cancer-testis antigen such as ... An oncoantigen is a surface or soluble tumor antigen that supports tumor growth. A major problem of cancer immunotherapy is the ...
Levels of the tumor markers carbohydrate antigen 19-9 (CA 19-9), carcinoembryonic antigen (CEA) and CA 125 are abnormally high ...
... carcinoembryonic antigen; however, only hTERT promoter was found to enter clinic trials. This is majorly because of the low ...
Carcinoembryonic antigen, a protein found in the blood as a marker for some types of cancer Certified Audio Engineer, a ... a piece of legislation regulating the sale of commodities in the United States Carcinoembryonic antigen, a tumor marker for ...
Markers used to detect eccrine carcinoma consist of carcinoembryonic antigen, progesterone receptors, estrogen receptors, ... epithelial membrane antigen, pancytokeratins, and cytokeratin 7. Wide surgical excision is the mainstay of treatment. ...
Molecular cloning and analysis of several PSG genes has shown that PSG forms a subset of the carcinoembryonic antigen (CEA) ... Zoubir F, Khan WN, Hammarström S (May 1990). "Carcinoembryonic antigen gene family members in submandibular salivary gland: ... and the carcinoembryonic antigen (CEA)-related proteins are members of the same multigene family". Biochemical and Biophysical ... "Efficient induction of T-cell responses to carcinoembryonic antigen by a heterologous prime-boost regimen using DNA and ...
... evaluation of the leukocyte adherence inhibition test in colorectal cancer and its correlation with carcinoembryonic antigen ...
2003). "Pro-gastrin-releasing peptide (ProGRP), neuron specific enolase (NSE), carcinoembryonic antigen (CEA) and cytokeratin ...
In a blood test or urine test, serum levels of tumor markers such as (alpha-fetoprotein, carcinoembryonic antigen, β-human ...
... and carcinoembryonic antigen (CEA)). Rarely, spermatocytic tumors may show sarcomatoid differentiation, most commonly as ...
In 1965, he co-discovered with Phil Gold the carcinoembryonic antigen, the basis of a blood test used in the diagnosis and ... Demonstration of tumor-specific antigens in human colonic carcinomata by immunological tolerance and absorption techniques. J ...
Test, carcinoembryonic antigen: See: Carcinoembryonic antigen.. SLIDESHOW. Colorectal Cancer: Symptoms, Signs, Screening, ... Medical Definition of Test, carcinoembryonic antigen. *Medical Editor: Jay W. Marks, MD ...
This page includes the following topics and synonyms: Carcinoembryonic Antigen, CEA.
... Eur J Nucl Med Mol Imaging. 2009 Jan;36(1):104-14 ... We have developed a reporter gene based on carcinoembryonic antigen (CEA), a human protein with limited normal tissue ...
This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of ... This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is found on some types of cancer ...
Carcinoembryonic Antigen Industry Analysis by Applications, Sampling and End User ... Carcinoembryonic Antigen market to grow at a CAGR of 15.2% during the forecast period, ... Carcinoembryonic Antigen Market Analysis, Carcinoembryonic Antigen Market trends, Carcinoembryonic Antigen Market Forecast, ... Carcinoembryonic Antigen Market Carcinoembryonic Antigen Market Research Report: Information by Application (Colorectal Cancer ...
A Study of RO6958688 in Participants With Locally Advanced and/or Metastatic Carcinoembryonic Antigen Positive Solid Tumors. ... A Study of RO6958688 in Participants With Locally Advanced and/or Metastatic Carcinoembryonic Antigen Positive Solid Tumors ... A Novel T-cell Bispecific Antibody That Targets the Human Carcinoembryonic Antigen (CEA) on Tumor Cells and CD3 on T Cells, ... The target antigen determines the mechanism of acquired resistance to T cell-based therapies. Cell Rep. 2022 Oct 18;41(3): ...
Buy high purity Carcinoembryonic Antigen (CEA) Tumor Marker for lung and colon malignant cancer research and clinical ... 151-09 - Carcinoembryonic Antigen from human liver - Lyophilized. 151-12 - anti-Human Carcinoembryonic Antigen polyclonal ... CEA, Carcinoembryonic antigen-related cell adhesion molecule 5, Meconium antigen 100, CD_antigen=CD66e. ... Lee Biosolutions is a producer and supplier of high purity human Carcinoembryonic Antigen (CEA), a marker for bowel cancer, ...
Carcinoembryonic Antigen Market will reach USD 3.0 billion by 2024; as per a new research report.. Growing cancer prevalence in ... UK carcinoembryonic antigen market is projected to grow at significant CAGR of 6.7% over the forecast time period. Rapidly ... Males in carcinoembryonic antigen market valued around USD 1,003.2 million in the year 2017, due to lifestyle-related factors ... Hospitals in carcinoembryonic antigen market is estimated to grow substantially at a CAGR of 6.1% during the forecast timeframe ...
Serial tumour markers serum carcinoembryonic antigen and cancer antigen 15-3 assays in detecting symptomatic metastasis in ... Clinical correlations with carcinoembryonic antigen. Cancer, 1977, 39:2397-2404.. *Falkson HC et al. Carcinoembryonic antigen ... A comparative study with carcinoembryonic antigen. Cancer, 1991, 68:574-582.. *Fletcher RH. Carcinoembryonic antigen. Annals of ... Serial tumour markers serum carcinoembryonic antigen and cancer antigen 15-3 assays in detecting symptomatic metastasis in ...
Reflection on the discovery of carcinoembryonic antigen, prostate-specific antigen, and cancer antigens CA125 and CA19-9 ... Targeting Carcinoembryonic Antigen with DNA Vaccination: On-Target Adverse Events Link with Immunologic and Clinical Outcomes ... Carcinoembryonic antigen (CEA) is an immunoglobulin-like molecule involved in cell adhesion (11). In healthy adults, CEA is ... We report on a phase I/II clinical trial of an anti-CEA DNA fusion vaccine in patients with carcinoembryonic antigen (CEA)- ...
The aim was to analyze the prognostic value of plasma levels of total cell-free DNA, carcinoembryonic antigen and C-reactive ... Serum carcinoembryonic antigen and C-reactive protein were analyzed by routine methods. Clinical endpoints were overall ... The aim was to analyze the prognostic value of plasma levels of total cell-free DNA, carcinoembryonic antigen and C-reactive ... Serum carcinoembryonic antigen and C-reactive protein were analyzed by routine methods. Clinical endpoints were overall ...
8.1 Analytical depiction of the Carcinoembryonic Antigen (CEA) market.. 8.2 the Carcinoembryonic Antigen (CEA) market growth ... Get more market information the Carcinoembryonic Antigen (CEA) : https://marketresearch.biz/report/carcinoembryonic-antigen-cea ... The Carcinoembryonic Antigen (CEA) Market is rigorously examined in the report while to a great extent focusing on top players ... The Carcinoembryonic Antigen (CEA) market report focuses on the latest trends in the global and regional spaces on all the ...
Evaluation of tumor markers carcinoembryonic antigen, cytokeratin 19 fragment and cancer-associated antigen 72-4 in neoplastic ... cancer-associated antigen 72-4 (CA 72-4) and carcinoembryonic antigen (CEA) in the neoplastic and non-neoplastic canine ... cancer-associated antigen 72-4 (CA 72-4) and carcinoembryonic antigen (CEA) in the neoplastic and non-neoplastic canine ...
Objectives The aim of this study was to determine the accuracy of cytology, carcinoembryonic antigen (CEA), and amylase levels ... Carcinoembryonic antigen modestly differentiated between mucinous and nonmucinous lesions. Amylase did not distinguish IPMNs ... Carcinoembryonic antigen modestly differentiated between mucinous and nonmucinous lesions. Amylase did not distinguish IPMNs ... N2 - Objectives The aim of this study was to determine the accuracy of cytology, carcinoembryonic antigen (CEA), and amylase ...
This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of ...
Corrigendum: Serum carcinoembryonic antigen trends for diagnosing colorectal cancer recurrence in the FACS randomized clinical ... Corrigendum: Serum carcinoembryonic antigen trends for diagnosing colorectal cancer recurrence in the FACS randomized clinical ... Monitoring carcinoembryonic antigen trend to detect colorectal cancer recurrence (British Journal of Surgery, (2018), 105, 6, ( ... Monitoring carcinoembryonic antigen trend to detect colorectal cancer recurrence (British Journal of Surgery, (2018), 105, 6, ( ...
Carcinoembryonic antigen. Most epithelial neoplasms of the ovary also express carcinoembryonic antigen (CEA). The neoplasms ... Squamous cell carcinoma antigen. The squamous cell carcinoma antigen level can be increased in patients with epidermoid ... Cancer antigen 125. National Comprehensive Cancer Network (NCCN) guidelines recommend that if the cancer antigen 125 (CA-125) ... Comparison of Sonographic Findings and Histopathologic Types Between Patients With Normal and Elevated Serum Cancer Antigen 125 ...
Get the best price for a Carcinoembryonic Antigen with MDsave. ... Learn how much a Carcinoembryonic Antigen costs in Florence, ... How Much Does a Carcinoembryonic Antigen Cost?. On MDsave, the cost of a Carcinoembryonic Antigen in Florence, Alabama, is $46 ... How Much Does a Carcinoembryonic Antigen Cost?. On MDsave, the cost of a Carcinoembryonic Antigen in Florence, Alabama, is $46 ... How Much Does a Carcinoembryonic Antigen Cost?. On MDsave, the cost of a Carcinoembryonic Antigen in Florence, Alabama, is $46 ...
Oto T, Ando A, Aoe M, Date H, Shimizu N. Bronchogenic Cyst with High Serum Carcinoembryonic Antigen. Japanese Journal of ... Oto, T, Ando, A, Aoe, M, Date, H & Shimizu, N 2003, Bronchogenic Cyst with High Serum Carcinoembryonic Antigen, Japanese ... A 64-year-old woman had a large subcarinal cyst accompanied by high serum carcinoembryonic antigen (CEA) of 55.7 ng/ml removed ... N2 - A 64-year-old woman had a large subcarinal cyst accompanied by high serum carcinoembryonic antigen (CEA) of 55.7 ng/ml ...
This test measures a protein called carcinoembryonic antigen (CEA) in your blood. This protein is present on some types of ...
Preoperative carcinoembryonic antigen level in colorectal cancer.. Authors: Batabyal, S K. Chatterji, A. Chandra, A K. Dutta, S ... Preoperative carcinoembryonic antigen level in colorectal cancer. Indian Journal of Pathology & Microbiology. 1986 Jul; 29(3): ...
Blood measurement of carcinoembryonic antigen level for detecting recurrence of colorectal cancer ... Blood measurement of carcinoembryonic antigen level for detecting recurrence of colorectal cancer ...
Tag: carcinoembryonic-antigen. Posted on March 29, 2019 at 11:03 pm. March 29, 2019 at 11:03 pm. by John Clark ... Neutrophils and carcinoembryonic antigens. I failed my blood test again today which means chemotherapy is once again postponed ... Apparently my blood tests have shown a significant decrease in my carcinoembryonic antigen (CEA) level. CEA is a protein that ...
This Carcino Embryonic Antigen blood test is tested to detect the presence of certain cancers and can be used to monitor the ... This Carcino Embryonic Antigen blood test is tested to detect the presence of certain cancers and can be used to monitor the ... This private blood test for Carcino Embryonic Antigen in London has a guaranteed turnaround time of 1 working day or less and ... Target Turn Around Time in working days: This private blood test for Carcino Embryonic Antigen in London has a guaranteed ...
... nor with non-specific cross-reacting antigen (NCA). ... a single band of 180 kD of human carcinoembryonic antigen (CEA ... Carcinoembryonic antigen-related cell adhesion molecule 1, Biliary glycoprotein 1, BGP-1, CD antigen CD66a, CEACAM1, BGP, BGP1 ... Product: anti-Carcinoembryonic Antigen mouse monoclonal, PARLAM4, ascites fluid. Art.No.: 10800. ... Product: anti-Carcinoembryonic Antigen mouse monoclonal, PARLAM4, ascites fluid. Art.No.: 10800. ...
Knowledge of the structure of carcinoembryonic antigen (CEA) is essential if we are to understand the relationship of this ...
Carcinoembryonic antigen (CEA) is a protein normally found in very low levels in the blood of adults. The CEA blood level may ... i-Chroma CEA (Carcino Embryonic Antigen). Carcinoembryonic antigen (CEA) is a protein normally found in very low levels in the ... HomeShopClinical Immunologyi-Chroma II Reader Parametersi-Chroma CEA (Carcino Embryonic Antigen) ...
... carcinoembryonic antigen) test measures CEA in a sample of blood or other body fluid. It helps check if treatment for certain ... CEA stands for carcinoembryonic antigen. CEA is a protein that is a type of "tumor marker." Tumor markers are substances that ... Test ID: CEA: Carcinoembryonic Antigen (CEA), Pleural Fluid: Overview; [cited 2022 Dec 1]; [about 3 screens]. Available from: ... Test ID: CEASF: Carcinoembryonic Antigen (CEA), Spinal Fluid: Overview; [cited 2022 Dec 1]; [about 1 screen]. Available from: ...
Carcinoembryonic antigen (CEA), immunologically identical to CEA derived from colonic carcinoma, was identified and purified ...
Fifty-nine tumors from 2 human colorectal carcinoma cell lines with high (KM-12c) and low (Clone A) carcinoembryonic antigen ( ... carcinoembryonic antigen (MAb) was newly designed and tested as to whether it enhanced the accuracy of tumor detection by ... Biparatopic CEA, carcinoembryonic antigen (MAb) was newly designed and tested as to whether it enhanced the accuracy of tumor ... Fifty-nine tumors from 2 human colorectal carcinoma cell lines with high (KM-12c) and low (Clone A) carcinoembryonic antigen ( ...
  • Serum carcinoembryonic antigen and C-reactive protein were analyzed by routine methods. (ruc.dk)
  • Serum carcinoembryonic antigen and C-reactive protein had similar prognostic value with short overall survival and progression-free survival in patients with elevated levels compared to those within normal range. (ruc.dk)
  • A 64-year-old woman had a large subcarinal cyst accompanied by high serum carcinoembryonic antigen (CEA) of 55.7 ng/ml removed thoracoscopically. (elsevier.com)
  • Increased preoperative serum Carcinoembryonic Antigen (CEA) and Cytokeratin-19 Fragment (CYFRA 21-1) levels are associated with a poor postoperative prognosis in early-stage Non-Small Cell Lung Cancer (NSCLC). (heraldopenaccess.us)
  • Diagnostic accuracy of pleural fluid to serum carcinoembryonic antigen ratio and delta value for malignant pleural effusion: findings from two cohorts. (bvsalud.org)
  • We have developed a reporter gene based on carcinoembryonic antigen (CEA), a human protein with limited normal tissue expression. (nih.gov)
  • This test measures a protein called carcinoembryonic antigen (CEA) in your blood. (ahealthyme.com)
  • A carcinoembryonic antigen test is generally a blood test that measures the carcinoembryonic antigen protein amount in the blood. (marketresearchfuture.com)
  • The aim was to analyze the prognostic value of plasma levels of total cell-free DNA, carcinoembryonic antigen and C-reactive protein in 97 heavily pretreated patients with metastatic colorectal cancer. (ruc.dk)
  • A high-risk profile of elevated cell-free DNA, carcinoembryonic antigen, and C-reactive protein was described, but in combined Cox regression multivariate analysis, only total cell-free DNA preserved a strong prognostic value. (ruc.dk)
  • In conclusion, total cell-free DNA in plasma, carcinoembryonic antigen, and C-reactive protein could all contribute to assessment of patients' prognosis and potentially aid in clinical decision making in patients with metastatic colorectal cancer. (ruc.dk)
  • Carcinoembryonic antigen (CEA) is a protein normally found in very low levels in the blood of adults. (co.ke)
  • High blood levels of a protein called carcinoembryonic antigen (CEA) sometimes indicate the presence of colon cancer. (keywen.com)
  • Carcinoembryonic antigen: Carcinoembryonic antigen (CEA) is a protein found in many types of cells but associated with tumors and the developing fetus. (keywen.com)
  • This Carcino Embryonic Antigen blood test is tested to detect the presence of certain cancers and can be used to monitor the effectiveness of treatment and also the recurrence of disease. (bloodtestslondon.com)
  • This study aimed to investigate the performance of tumor markers cytokeratin 19 fragment (CYFRA 21-1), cancer-associated antigen 72-4 (CA 72-4) and carcinoembryonic antigen (CEA) in the neoplastic and non-neoplastic canine effusions. (ufrgs.br)
  • Objectives The aim of this study was to determine the accuracy of cytology, carcinoembryonic antigen (CEA), and amylase levels in the preoperative diagnosis of intraductal papillary mucinous neoplasms (IPMNs). (elsevier.com)
  • IMSEAR at SEARO: Preoperative carcinoembryonic antigen level in colorectal cancer. (who.int)
  • Additionally, intravenous administration of calcium-stimulated serum concentrations of procalcitonin (PCt) level, in addition to calcitonin (Ct) and MFNB, also confirmed elevated levels of Ct, PCt, and carcinoembryonic antigen (CEA) in the aspirate samples. (jofem.org)
  • Carcinoembryonic antigen (CEA) is a tumor-associated glycoprotein expressed in a variety of cancers. (crcm-marseille.fr)
  • Post COVID-19 Recovery scenarios suggest year-on-year revenue growth in the Carcinoembryonic Antigen (CEA) market during 2021. (5gigs.com)
  • Fifty-nine tumors from 2 human colorectal carcinoma cell lines with high (KM-12c) and low (Clone A) carcinoembryonic antigen (CEA) expression were successfully implanted subcutaneously on the backs of 42 nude mice. (ox.ac.uk)
  • These tumors often produce carcinoembryonic antigen (CEA), which a hormone produced by some cancers that can be found by taking a blood test. (keywen.com)
  • Serum tumor marker human Carcinoembryonic antigen (CEA) is a glycoprotein involved in cell adhesion. (leebio.com)
  • The antibody is directed against a single band of 180 kD of human carcinoembryonic antigen (CEA) and shows no cross-reactivity neither with bilary glycoprotein (BGP) nor with non-specific cross-reacting antigen (NCA). (progen.com)
  • 2018. " Increased Carcinoembryonic Antigen Expression On The Surface Of Lung Cancer Cells During Radiotherapy " . (uni-heidelberg.de)
  • Enhancement of colorectal tumor targeting using a novel biparatopic monoclonal antibody against carcinoembryonic antigen in experimental radioimmunoguided surgery. (ox.ac.uk)
  • Carcinoembryonic antigen tests find its application in diagnosis of various cancers including gastrointestinal cancer, breast cancer, lung cancer, ovarian cancer, prostate cancer, and thyroid cancer, thereby driving the global market growth. (asdreports.com)
  • Detection of carcinoembryonic antigen using single-domain or full-size antibodies stained with quantum dot conjugates. (crcm-marseille.fr)
  • We utilized domain-specific probes and polyclonal antibodies against CEA-related antigens to study sodium butyrate-induced expression of the CEA gene family in a villous adenoma-derived cell line, which is nontumorigenic in nude mice (VACO 235), and two colonic carcinoma cell lines known to respond to sodium butyrate exposure by phenotypic differentiation (HT-29 and LS 174T). (elsevier.com)
  • Lee Biosolutions is a producer and supplier of high purity human Carcinoembryonic Antigen (CEA), a marker for bowel cancer, colorectal carcinoma, lung cancer research and diagnostic manufacturing. (leebio.com)
  • Increasing consumption of alcohol, processed food, and desk-bound lifestyles are factors that rises the commonness of cancer, and it is an opportunity for Carcinoembryonic Antigen Market. (marketresearchfuture.com)
  • Growing cancer prevalence in most of the developing region will be one of the major factors for the carcinoembryonic antigen market growth. (asdreports.com)
  • Moreover, government initiatives to increase awareness regarding early detection of cancer will fuel the demand for carcinoembryonic antigen tests, thereby augmenting the industry growth. (asdreports.com)
  • Growing demand for effective cancer screening services is one of the major market drivers for carcinoembryonic antigen market growth. (asdreports.com)
  • Hospitals in carcinoembryonic antigen market is estimated to grow substantially at a CAGR of 6.1% during the forecast timeframe, due to increased geriatric population affected with cancer. (asdreports.com)
  • Moreover, hospitals have high adoption rates for technologically advanced carcinoembryonic antigen tests that are utilized for cancer diagnosis and management, thereby fueling the growth of market segment. (asdreports.com)
  • This prospective study in Yazd, Islamic Republic of Iran, assessed the value of the tumour markers carcinoembryonic antigen (CEA) and cancer antigen (CA) 15-3 in 159 patients with primary breast cancer. (who.int)
  • Carcinoembryonic Antigen (CEA) and Cytokeratin Fragment 19 (CYFRA 21-1) are two predictive markers that have been extensively studied in lung cancer[8]. (heraldopenaccess.us)
  • One such marker, carcinoembryonic antigen (CEA), may be higher than usual in people with colorectal cancer. (mayoclinic.org)
  • ALVAC-CEA vaccine A cancer vaccine containing a canary pox virus (ALVAC) combined with the human carcinoembryonic antigen (CEA) gene. (keywen.com)
  • CEA: Carcinoembryonic antigen, a blood tumor marker that, when elevated, can indicate the presence of cancer. (keywen.com)
  • Carcinoembryonic antigen (CEA) is a cancer marker. (keywen.com)
  • Other procedures used for colon cancer stages include lymph node biopsy, chest x-ray, surgery, and carcinoembryonic antigen assay (CEA). (colorectal-cancer.net)
  • Carbohydrate antigen 19-9 (CA 19-9) is a sialylated oligosaccharide that is most commonly found on circulating mucins in cancer patients. (medscape.com)
  • Your doctor checks for carcinoembryonic antigen (CEA) and other substances in the blood. (keywen.com)
  • In particular, high levels of carcinoembryonic antigen (CEA) in the blood can indicate metastasis of adenocarcinoma. (keywen.com)
  • For diagnosis, endoscopic examination of the intestine, as well as blood tests and CEA (Carcinoembryonic antigen) a chemical produced by the colon, may be used. (com.pk)
  • CEA expression was correlated with tumor stage (r = 0.594, p = 0.000) before chemotherapy, whereas its expression after chemotherapy was correlated with serum levels of CA125 antigen (r = 0.658, p = 0.000). (nature.com)
  • Lead associated levels of this antigen were also found to be 1.9 times higher in persons carrying the double variant allele (heterozygous) and 1.6 times higher in persons carrying the wild type. (who.int)
  • Carcinoembryonic antigen (CEA) in non digestive cancerous and normal tissues. (unil.ch)
  • Upper and lower digestive tract endoscopic examination and carcinoembryonic antigen showed no abnormalities, which lessened the likelihood of a tumor relapse. (cdc.gov)
  • Biparatopic CEA, carcinoembryonic antigen (MAb) was newly designed and tested as to whether it enhanced the accuracy of tumor detection by reducing non-specific binding in experimental radioimmunoguided surgery. (ox.ac.uk)
  • Smith GM, Biggs J, Norris B, Anderson-Stewart P, Ward R. Detection of a soluble form of the leukocyte surface antigen CD48 in plasma and its elevation in patients with lymphoid leukemias and arthritis. (hcdm.org)
  • Lack of supply chains and decrease in Carcinoembryonic Antigen Market Share in the regions due to post covid crisis is another major challenge for the market. (marketresearchfuture.com)
  • Apparently my blood tests have shown a significant decrease in my carcinoembryonic antigen (CEA) level. (prayfortheclarks.com)
  • Carcinoembryonic antigen (CEA), a widely used tumor marker, is attached by a glycosylphosphatidylinositol (GPI) anchor motif to the cell membrane. (fujita-hu.ac.jp)
  • Pleural fluid (PF) carcinoembryonic antigen (CEA) is a widely used diagnostic marker for malignant pleural effusion (MPE). (bvsalud.org)
  • The Carcinoembryonic Antigen (CEA) market companies will have to formulate long-term plans, evaluate potential scenarios, and re-orient both strategies and operations to developing market trends through regular monitoring of industry shifts and geopolitical replies. (5gigs.com)
  • The expression of CA125 mRNA had negative correlation with the other markers and with tumor stage and therapy response (evaluated by the measurement of serum CA125 antigen). (nature.com)
  • This private blood test for Carcino Embryonic Antigen in London has a guaranteed turnaround time of 1 working day or less and tests for Carcino Embryonic Antigen only. (bloodtestslondon.com)
  • Sometimes, the doctor may obtain a blood test for CEA (carcinoembyonic antigen). (keywen.com)
  • The presence of a primary signet ring cell carcinoma of the prostate was best confirmed by negative findings on gastrointestinal work-up, a positive stain for prostate-specific acid phosphatase, and negative carcinoembryonic antigen test results. (elsevier.com)
  • A considerable amount of heterogeneity is seen in the biosynthesis of the CEA-related glycoproteins, with each cell line showing a distinct pattern of CEA-related antigen expression from a limited number of mRNA transcripts. (elsevier.com)
  • These changes include increased expression of carcinoembryonic antigen (CEA) and other oncodevelopmental markers. (elsevier.com)
  • The research report studies the past, present, and future performance of the Carcinoembryonic Antigen (CEA) market. (5gigs.com)
  • The report analyses various recovery scenarios considering evolving the Carcinoembryonic Antigen (CEA) market demand, economic recovery conditions, and other global and regional changes. (5gigs.com)
  • The Carcinoembryonic Antigen (CEA) Market is rigorously examined in the report while to a great extent focusing on top players and their marketing strategies, geographical length, market sections, competitive landscape, and evaluating structures. (5gigs.com)
  • Each part of the analysis study is specially set up to investigate key aspects of the Carcinoembryonic Antigen (CEA) Market. (5gigs.com)
  • With qualitative and quantitative analysis, we assist you with a careful and exhaustive exploration of the Carcinoembryonic Antigen (CEA) Market. (5gigs.com)
  • Carcinoembryonic antigen and related normal antigens. (elsevier.com)

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