Carcinogens: Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.Carcinogenesis: The origin, production or development of cancer through genotypic and phenotypic changes which upset the normal balance between cell proliferation and cell death. Carcinogenesis generally requires a constellation of steps, which may occur quickly or over a period of many years.Cell Transformation, Neoplastic: Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill.Cocarcinogenesis: The combination of two or more different factors in the production of cancer.9,10-Dimethyl-1,2-benzanthracene: 7,12-Dimethylbenzanthracene. Polycyclic aromatic hydrocarbon found in tobacco smoke that is a potent carcinogen.Precancerous Conditions: Pathological processes that tend eventually to become malignant. (From Dorland, 27th ed)Azoxymethane: A potent carcinogen and neurotoxic compound. It is particularly effective in inducing colon carcinomas.Anticarcinogenic Agents: Agents that reduce the frequency or rate of spontaneous or induced tumors independently of the mechanism involved.Papilloma: A circumscribed benign epithelial tumor projecting from the surrounding surface; more precisely, a benign epithelial neoplasm consisting of villous or arborescent outgrowths of fibrovascular stroma covered by neoplastic cells. (Stedman, 25th ed)Rats, Inbred F344Skin Neoplasms: Tumors or cancer of the SKIN.Methylnitrosourea: A nitrosourea compound with alkylating, carcinogenic, and mutagenic properties.Colonic Neoplasms: Tumors or cancer of the COLON.Carcinogenicity Tests: Tests to experimentally measure the tumor-producing/cancer cell-producing potency of an agent by administering the agent (e.g., benzanthracenes) and observing the quantity of tumors or the cell transformation developed over a given period of time. The carcinogenicity value is usually measured as milligrams of agent administered per tumor developed. Though this test differs from the DNA-repair and bacterial microsome MUTAGENICITY TESTS, researchers often attempt to correlate the finding of carcinogenicity values and mutagenicity values.1,2-Dimethylhydrazine: A DNA alkylating agent that has been shown to be a potent carcinogen and is widely used to induce colon tumors in experimental animals.Neoplasms, Experimental: Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms.Nitrosamines: A class of compounds that contain a -NH2 and a -NO radical. Many members of this group have carcinogenic and mutagenic properties.Mammary Neoplasms, Experimental: Experimentally induced mammary neoplasms in animals to provide a model for studying human BREAST NEOPLASMS.Gene Expression Regulation, Neoplastic: Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in neoplastic tissue.Stomach Neoplasms: Tumors or cancer of the STOMACH.Adenocarcinoma: A malignant epithelial tumor with a glandular organization.Adenoma: A benign epithelial tumor with a glandular organization.4-Nitroquinoline-1-oxide: A potent mutagen and carcinogen. This compound and its metabolite 4-HYDROXYAMINOQUINOLINE-1-OXIDE bind to nucleic acids. It inactivates bacteria but not bacteriophage.Neoplasms, Radiation-Induced: Tumors, cancer or other neoplasms produced by exposure to ionizing or non-ionizing radiation.Liver Neoplasms, Experimental: Experimentally induced tumors of the LIVER.Carcinoma, Squamous Cell: A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed)Diethylnitrosamine: A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties.Neoplasms: 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.Butylhydroxybutylnitrosamine: A substituted carcinogenic nitrosamine.Carcinogens, Environmental: Carcinogenic substances that are found in the environment.Dimethylhydrazines: Hydrazines substituted with two methyl groups in any position.Methylnitronitrosoguanidine: A nitrosoguanidine derivative with potent mutagenic and carcinogenic properties.Benzo(a)pyrene: A potent mutagen and carcinogen. It is a public health concern because of its possible effects on industrial workers, as an environmental pollutant, an as a component of tobacco smoke.Genes, ras: Family of retrovirus-associated DNA sequences (ras) originally isolated from Harvey (H-ras, Ha-ras, rasH) and Kirsten (K-ras, Ki-ras, rasK) murine sarcoma viruses. Ras genes are widely conserved among animal species and sequences corresponding to both H-ras and K-ras genes have been detected in human, avian, murine, and non-vertebrate genomes. The closely related N-ras gene has been detected in human neuroblastoma and sarcoma cell lines. All genes of the family have a similar exon-intron structure and each encodes a p21 protein.Immunohistochemistry: Histochemical localization of immunoreactive substances using labeled antibodies as reagents.Colorectal Neoplasms: 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.Hyperplasia: An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells.Mesocricetus: A genus of the family Muridae having three species. The present domesticated strains were developed from individuals brought from Syria. They are widely used in biomedical research.Cell Line, Tumor: A cell line derived from cultured tumor cells.Mouth Neoplasms: Tumors or cancer of the MOUTH.DNA Methylation: Addition of methyl groups to DNA. DNA methyltransferases (DNA methylases) perform this reaction using S-ADENOSYLMETHIONINE as the methyl group donor.Cyclooxygenase 2: An inducibly-expressed subtype of prostaglandin-endoperoxide synthase. It plays an important role in many cellular processes and INFLAMMATION. It is the target of COX2 INHIBITORS.Chemoprevention: The use of chemical compounds to prevent the development of a specific disease.Lung Neoplasms: Tumors or cancer of the LUNG.Liver Neoplasms: Tumors or cancer of the LIVER.Colon: 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.Cell Proliferation: All of the processes involved in increasing CELL NUMBER including CELL DIVISION.Carcinoma: 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)Apoptosis: One of the mechanisms by which CELL DEATH occurs (compare with NECROSIS and AUTOPHAGOCYTOSIS). Apoptosis is the mechanism responsible for the physiological deletion of cells and appears to be intrinsically programmed. It is characterized by distinctive morphologic changes in the nucleus and cytoplasm, chromatin cleavage at regularly spaced sites, and the endonucleolytic cleavage of genomic DNA; (DNA FRAGMENTATION); at internucleosomal sites. This mode of cell death serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.Mice, Transgenic: Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN.Intestinal Neoplasms: Tumors or cancer of the INTESTINES.Cell Division: The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.DNA Adducts: The products of chemical reactions that result in the addition of extraneous chemical groups to DNA.Azaserine: Antibiotic substance produced by various Streptomyces species. It is an inhibitor of enzymatic activities that involve glutamine and is used as an antineoplastic and immunosuppressive agent.Tumor Suppressor Protein p53: Nuclear phosphoprotein encoded by the p53 gene (GENES, P53) whose normal function is to control CELL PROLIFERATION and APOPTOSIS. A mutant or absent p53 protein has been found in LEUKEMIA; OSTEOSARCOMA; LUNG CANCER; and COLORECTAL CANCER.DNA Damage: Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS.Keratinocytes: Epidermal cells which synthesize keratin and undergo characteristic changes as they move upward from the basal layers of the epidermis to the cornified (horny) layer of the skin. Successive stages of differentiation of the keratinocytes forming the epidermal layers are basal cell, spinous or prickle cell, and the granular cell.Reverse Transcriptase Polymerase Chain Reaction: A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR protocols.Urethane: Antineoplastic agent that is also used as a veterinary anesthetic. It has also been used as an intermediate in organic synthesis. Urethane is suspected to be a carcinogen.Urinary Bladder Neoplasms: Tumors or cancer of the URINARY BLADDER.Tumor Markers, Biological: 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.Mutagens: Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes.Mutation: Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.2-Acetylaminofluorene: A hepatic carcinogen whose mechanism of activation involves N-hydroxylation to the aryl hydroxamic acid followed by enzymatic sulfonation to sulfoxyfluorenylacetamide. It is used to study the carcinogenicity and mutagenicity of aromatic amines.RNA, Messenger: 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.Esophageal Neoplasms: Tumors or cancer of the ESOPHAGUS.Disease Models, Animal: Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.Genes, Tumor Suppressor: Genes that inhibit expression of the tumorigenic phenotype. They are normally involved in holding cellular growth in check. When tumor suppressor genes are inactivated or lost, a barrier to normal proliferation is removed and unregulated growth is possible.Signal Transduction: The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.Mice, Inbred SENCAR: Mice selectively bred for hypersusceptibility to two-stage chemical skin carcinogenesis. They are also hypersusceptible to UV radiation tumorigenesis with single high-dose, but not chronic low-dose, exposures. SENCAR (SENsitive to CARcinogenesis) mice are used in research as an animal model for tumor production.DNA, Neoplasm: DNA present in neoplastic tissue.Disease Progression: The worsening of a disease over time. This concept is most often used for chronic and incurable diseases where the stage of the disease is an important determinant of therapy and prognosis.Genes, p53: Tumor suppressor genes located on the short arm of human chromosome 17 and coding for the phosphoprotein p53.Epithelial Cells: Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.Diet: Regular course of eating and drinking adopted by a person or animal.Mutagenicity Tests: Tests of chemical substances and physical agents for mutagenic potential. They include microbial, insect, mammalian cell, and whole animal tests.Gastric Mucosa: Lining of the STOMACH, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. The surface cells produce MUCUS that protects the stomach from attack by digestive acid and enzymes. When the epithelium invaginates into the LAMINA PROPRIA at various region of the stomach (CARDIA; GASTRIC FUNDUS; and PYLORUS), different tubular gastric glands are formed. These glands consist of cells that secrete mucus, enzymes, HYDROCHLORIC ACID, or hormones.Ultraviolet Rays: That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants.Mice, Hairless: Mutant strains of mice that produce little or no hair.Benz(a)Anthracenes: Four fused benzyl rings with three linear and one angular, that can be viewed as a benzyl-phenanthrenes. Compare with NAPHTHACENES which are four linear rings.beta Catenin: A multi-functional catenin that participates in CELL ADHESION and nuclear signaling. Beta catenin binds CADHERINS and helps link their cytoplasmic tails to the ACTIN in the CYTOSKELETON via ALPHA CATENIN. It also serves as a transcriptional co-activator and downstream component of WNT PROTEIN-mediated SIGNAL TRANSDUCTION PATHWAYS.Intestinal Mucosa: Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI.Pancreatic Neoplasms: 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).Prostatic Neoplasms: Tumors or cancer of the PROSTATE.Carcinoma, Hepatocellular: A primary malignant neoplasm of epithelial liver cells. It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. The cells may be uniform or markedly pleomorphic, or form GIANT CELLS. Several classification schemes have been suggested.Methylhydrazines: Hydrazines substituted by one or more methyl groups in any position.Neoplasm Proteins: Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm.Mammary Neoplasms, Animal: Tumors or cancer of the MAMMARY GLAND in animals (MAMMARY GLANDS, ANIMAL).Liver: A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.Skin: The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.Carcinoma in Situ: A lesion with cytological characteristics associated with invasive carcinoma but the tumor cells are confined to the epithelium of origin, without invasion of the basement membrane.Tetradecanoylphorbol Acetate: A phorbol ester found in CROTON OIL with very effective tumor promoting activity. It stimulates the synthesis of both DNA and RNA.Uterine Cervical Neoplasms: Tumors or cancer of the UTERINE CERVIX.Dimethylnitrosamine: A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties. It causes serious liver damage and is a hepatocarcinogen in rodents.Epidermis: The external, nonvascular layer of the skin. It is made up, from within outward, of five layers of EPITHELIUM: (1) basal layer (stratum basale epidermidis); (2) spinous layer (stratum spinosum epidermidis); (3) granular layer (stratum granulosum epidermidis); (4) clear layer (stratum lucidum epidermidis); and (5) horny layer (stratum corneum epidermidis).Cheek: The part of the face that is below the eye and to the side of the nose and mouth.Mammary Glands, Animal: MAMMARY GLANDS in the non-human MAMMALS.Mice, Inbred C57BLAberrant Crypt Foci: Clusters of colonic crypts that appear different from the surrounding mucosa when visualized after staining. They are of interest as putative precursors to colorectal adenomas and potential biomarkers for colorectal carcinoma.Deoxyguanosine: A nucleoside consisting of the base guanine and the sugar deoxyribose.Body Weight: The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.Oncogenes: Genes whose gain-of-function alterations lead to NEOPLASTIC CELL TRANSFORMATION. They include, for example, genes for activators or stimulators of CELL PROLIFERATION such as growth factors, growth factor receptors, protein kinases, signal transducers, nuclear phosphoproteins, and transcription factors. A prefix of "v-" before oncogene symbols indicates oncogenes captured and transmitted by RETROVIRUSES; the prefix "c-" before the gene symbol of an oncogene indicates it is the cellular homolog (PROTO-ONCOGENES) of a v-oncogene.Breast Neoplasms: Tumors or cancer of the human BREAST.Rats, Inbred ACIProstaglandin-Endoperoxide Synthases: Enzyme complexes that catalyze the formation of PROSTAGLANDINS from the appropriate unsaturated FATTY ACIDS, molecular OXYGEN, and a reduced acceptor.Genes, APC: Tumor suppressor genes located in the 5q21 region on the long arm of human chromosome 5. The mutation of these genes is associated with familial adenomatous polyposis (ADENOMATOUS POLYPOSIS COLI) and GARDNER SYNDROME, as well as some sporadic colorectal cancers.Tongue Neoplasms: Tumors or cancer of the TONGUE.Ornithine Decarboxylase: A pyridoxal-phosphate protein, believed to be the rate-limiting compound in the biosynthesis of polyamines. It catalyzes the decarboxylation of ornithine to form putrescine, which is then linked to a propylamine moiety of decarboxylated S-adenosylmethionine to form spermidine.Butylated Hydroxytoluene: A di-tert-butyl PHENOL with antioxidant properties.Metaplasia: A condition in which there is a change of one adult cell type to another similar adult cell type.Proliferating Cell Nuclear Antigen: 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.Polymerase Chain Reaction: In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.Blotting, Western: Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes.Benzopyrenes: A class of chemicals that contain an anthracene ring with a naphthalene ring attached to it.Loss of Heterozygosity: The loss of one allele at a specific locus, caused by a deletion mutation; or loss of a chromosome from a chromosome pair, resulting in abnormal HEMIZYGOSITY. It is detected when heterozygous markers for a locus appear monomorphic because one of the ALLELES was deleted.Tumor Cells, Cultured: 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.Sulfadimethoxine: A sulfanilamide that is used as an anti-infective agent.Neoplasm Invasiveness: Ability of neoplasms to infiltrate and actively destroy surrounding tissue.Gene Expression Profiling: The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Epithelium: One or more layers of EPITHELIAL CELLS, supported by the basal lamina, which covers the inner or outer surfaces of the body.Alkylating Agents: Highly reactive chemicals that introduce alkyl radicals into biologically active molecules and thereby prevent their proper functioning. Many are used as antineoplastic agents, but most are very toxic, with carcinogenic, mutagenic, teratogenic, and immunosuppressant actions. They have also been used as components in poison gases.Promoter Regions, Genetic: DNA sequences which are recognized (directly or indirectly) and bound by a DNA-dependent RNA polymerase during the initiation of transcription. Highly conserved sequences within the promoter include the Pribnow box in bacteria and the TATA BOX in eukaryotes.Cricetinae: A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS.Mice, Knockout: Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.Butylated Hydroxyanisole: Mixture of 2- and 3-tert-butyl-4-methoxyphenols that is used as an antioxidant in foods, cosmetics, and pharmaceuticals.Dose-Response Relationship, Drug: The relationship between the dose of an administered drug and the response of the organism to the drug.Genetic Predisposition to Disease: A latent susceptibility to disease at the genetic level, which may be activated under certain conditions.Case-Control Studies: Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.DNA: A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).Papillomaviridae: A family of small, non-enveloped DNA viruses infecting birds and most mammals, especially humans. They are grouped into multiple genera, but the viruses are highly host-species specific and tissue-restricted. They are commonly divided into hundreds of papillomavirus "types", each with specific gene function and gene control regions, despite sequence homology. Human papillomaviruses are found in the genera ALPHAPAPILLOMAVIRUS; BETAPAPILLOMAVIRUS; GAMMAPAPILLOMAVIRUS; and MUPAPILLOMAVIRUS.Rats, Inbred Strains: Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.Plant Extracts: Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.Croton Oil: Viscous, nauseating oil obtained from the shrub Croton tiglium (Euphorbaceae). It is a vesicant and skin irritant used as pharmacologic standard for skin inflammation and allergy and causes skin cancer. It was formerly used as an emetic and cathartic with frequent mortality.Down-Regulation: A negative regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins.Gene Silencing: Interruption or suppression of the expression of a gene at transcriptional or translational levels.Tumor Suppressor Proteins: Proteins that are normally involved in holding cellular growth in check. Deficiencies or abnormalities in these proteins may lead to unregulated cell growth and tumor development.Aflatoxin B1: A potent hepatotoxic and hepatocarcinogenic mycotoxin produced by the Aspergillus flavus group of fungi. It is also mutagenic, teratogenic, and causes immunosuppression in animals. It is found as a contaminant in peanuts, cottonseed meal, corn, and other grains. The mycotoxin requires epoxidation to aflatoxin B1 2,3-oxide for activation. Microsomal monooxygenases biotransform the toxin to the less toxic metabolites aflatoxin M1 and Q1.DNA Repair: The reconstruction of a continuous two-stranded DNA molecule without mismatch from a molecule which contained damaged regions. The major repair mechanisms are excision repair, in which defective regions in one strand are excised and resynthesized using the complementary base pairing information in the intact strand; photoreactivation repair, in which the lethal and mutagenic effects of ultraviolet light are eliminated; and post-replication repair, in which the primary lesions are not repaired, but the gaps in one daughter duplex are filled in by incorporation of portions of the other (undamaged) daughter duplex. Excision repair and post-replication repair are sometimes referred to as "dark repair" because they do not require light.Cyclin D1: Protein encoded by the bcl-1 gene which plays a critical role in regulating the cell cycle. Overexpression of cyclin D1 is the result of bcl-1 rearrangement, a t(11;14) translocation, and is implicated in various neoplasms.Cyclin-Dependent Kinase Inhibitor p16: A product of the p16 tumor suppressor gene (GENES, P16). It is also called INK4 or INK4A because it is the prototype member of the INK4 CYCLIN-DEPENDENT KINASE INHIBITORS. This protein is produced from the alpha mRNA transcript of the p16 gene. The other gene product, produced from the alternatively spliced beta transcript, is TUMOR SUPPRESSOR PROTEIN P14ARF. Both p16 gene products have tumor suppressor functions.Base Sequence: The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.Glutathione Transferase: A transferase that catalyzes the addition of aliphatic, aromatic, or heterocyclic FREE RADICALS as well as EPOXIDES and arene oxides to GLUTATHIONE. Addition takes place at the SULFUR. It also catalyzes the reduction of polyol nitrate by glutathione to polyol and nitrite.Immunoenzyme Techniques: 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.Isoenzymes: Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics.Helicobacter Infections: Infections with organisms of the genus HELICOBACTER, particularly, in humans, HELICOBACTER PYLORI. The clinical manifestations are focused in the stomach, usually the gastric mucosa and antrum, and the upper duodenum. This infection plays a major role in the pathogenesis of type B gastritis and peptic ulcer disease.Models, Biological: Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.CpG Islands: Areas of increased density of the dinucleotide sequence cytosine--phosphate diester--guanine. They form stretches of DNA several hundred to several thousand base pairs long. In humans there are about 45,000 CpG islands, mostly found at the 5' ends of genes. They are unmethylated except for those on the inactive X chromosome and some associated with imprinted genes.FANFT: A potent nitrofuran derivative tumor initiator. It causes bladder tumors in all animals studied and is mutagenic to many bacteria.Mice, Inbred Strains: Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations, or by parent x offspring matings carried out with certain restrictions. All animals within an inbred strain trace back to a common ancestor in the twentieth generation.Oligonucleotide Array Sequence Analysis: Hybridization of a nucleic acid sample to a very large set of OLIGONUCLEOTIDE PROBES, which have been attached individually in columns and rows to a solid support, to determine a BASE SEQUENCE, or to detect variations in a gene sequence, GENE EXPRESSION, or for GENE MAPPING.Mouth Mucosa: Lining of the ORAL CAVITY, including mucosa on the GUMS; the PALATE; the LIP; the CHEEK; floor of the mouth; and other structures. The mucosa is generally a nonkeratinized stratified squamous EPITHELIUM covering muscle, bone, or glands but can show varying degree of keratinization at specific locations.Azo CompoundsEstrogens, Catechol: 2- or 4-Hydroxyestrogens. Substances that are physiologically active in mammals, especially in the control of gonadotropin secretion. Physiological activity can be ascribed to either an estrogenic action or interaction with the catecholaminergic system.Epigenesis, Genetic: A genetic process by which the adult organism is realized via mechanisms that lead to the restriction in the possible fates of cells, eventually leading to their differentiated state. Mechanisms involved cause heritable changes to cells without changes to DNA sequence such as DNA METHYLATION; HISTONE modification; DNA REPLICATION TIMING; NUCLEOSOME positioning; and heterochromatization which result in selective gene expression or repression.Helicobacter pylori: A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curved or slightly spiral organism initially isolated in 1982 from patients with lesions of gastritis or peptic ulcers in Western Australia. Helicobacter pylori was originally classified in the genus CAMPYLOBACTER, but RNA sequencing, cellular fatty acid profiles, growth patterns, and other taxonomic characteristics indicate that the micro-organism should be included in the genus HELICOBACTER. It has been officially transferred to Helicobacter gen. nov. (see Int J Syst Bacteriol 1989 Oct;39(4):297-405).RNA, Neoplasm: RNA present in neoplastic tissue.Prostate: A gland in males that surrounds the neck of the URINARY BLADDER and the URETHRA. It secretes a substance that liquefies coagulated semen. It is situated in the pelvic cavity behind the lower part of the PUBIC SYMPHYSIS, above the deep layer of the triangular ligament, and rests upon the RECTUM.DNA-Binding Proteins: Proteins which bind to DNA. The family includes proteins which bind to both double- and single-stranded DNA and also includes specific DNA binding proteins in serum which can be used as markers for malignant diseases.Lipotropic Agents: Endogenous factors or drugs that increase the transport and metabolism of LIPIDS including the synthesis of LIPOPROTEINS by the LIVER and their uptake by extrahepatic tissues.Antioxidants: Naturally occurring or synthetic substances that inhibit or retard the oxidation of a substance to which it is added. They counteract the harmful and damaging effects of oxidation in animal tissues.Endometrial Neoplasms: Tumors or cancer of ENDOMETRIUM, the mucous lining of the UTERUS. These neoplasms can be benign or malignant. Their classification and grading are based on the various cell types and the percent of undifferentiated cells.Kidney Neoplasms: Tumors or cancers of the KIDNEY.Cyclooxygenase 2 Inhibitors: A subclass of cyclooxygenase inhibitors with specificity for CYCLOOXYGENASE-2.Cell Cycle: The complex series of phenomena, occurring between the end of one CELL DIVISION and the end of the next, by which cellular material is duplicated and then divided between two daughter cells. The cell cycle includes INTERPHASE, which includes G0 PHASE; G1 PHASE; S PHASE; and G2 PHASE, and CELL DIVISION PHASE.p-Dimethylaminoazobenzene: A reagent used mainly to induce experimental liver cancer. According to the Fourth Annual Report on Carcinogens (NTP 85-002, p. 89) published in 1985, this compound "may reasonably be anticipated to be a carcinogen." (Merck, 11th ed)Up-Regulation: A positive regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins.Isothiocyanates: Organic compounds with the general formula R-NCS.DNA Primers: Short sequences (generally about 10 base pairs) of DNA that are complementary to sequences of messenger RNA and allow reverse transcriptases to start copying the adjacent sequences of mRNA. Primers are used extensively in genetic and molecular biology techniques.Keratin-14: A type I keratin that is found associated with the KERATIN-5 in the internal stratified EPITHELIUM. Mutations in the gene for keratin-14 are associated with EPIDERMOLYSIS BULLOSA SIMPLEX.Breast: In humans, one of the paired regions in the anterior portion of the THORAX. The breasts consist of the MAMMARY GLANDS, the SKIN, the MUSCLES, the ADIPOSE TISSUE, and the CONNECTIVE TISSUES.MicroRNAs: Small double-stranded, non-protein coding RNAs, 21-25 nucleotides in length generated from single-stranded microRNA gene transcripts by the same RIBONUCLEASE III, Dicer, that produces small interfering RNAs (RNA, SMALL INTERFERING). They become part of the RNA-INDUCED SILENCING COMPLEX and repress the translation (TRANSLATION, GENETIC) of target RNA by binding to homologous 3'UTR region as an imperfect match. The small temporal RNAs (stRNAs), let-7 and lin-4, from C. elegans, are the first 2 miRNAs discovered, and are from a class of miRNAs involved in developmental timing.Mice, Nude: 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.Tea: The infusion of leaves of CAMELLIA SINENSIS (formerly Thea sinensis) as a beverage, the familiar Asian tea, which contains CATECHIN (especially epigallocatechin gallate) and CAFFEINE.Risk Factors: An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.Estrogens: Compounds that interact with ESTROGEN RECEPTORS in target tissues to bring about the effects similar to those of ESTRADIOL. Estrogens stimulate the female reproductive organs, and the development of secondary female SEX CHARACTERISTICS. Estrogenic chemicals include natural, synthetic, steroidal, or non-steroidal compounds.Disease Susceptibility: A constitution or condition of the body which makes the tissues react in special ways to certain extrinsic stimuli and thus tends to make the individual more than usually susceptible to certain diseases.Helicobacter felis: A species of HELICOBACTER that colonizes in the STOMACH of laboratory MICE; CATS; and DOGS. It is associated with lymphoid follicular hyperplasia and mild GASTRITIS in CATS.Methyldimethylaminoazobenzene: A very potent liver carcinogen.Mice, Inbred ICRMethylcholanthrene: A carcinogen that is often used in experimental cancer studies.Trans-Activators: Diffusible gene products that act on homologous or heterologous molecules of viral or cellular DNA to regulate the expression of proteins.Gene Expression: The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.Telomerase: An essential ribonucleoprotein reverse transcriptase that adds telomeric DNA to the ends of eukaryotic CHROMOSOMES.Papillomavirus Infections: Neoplasms of the skin and mucous membranes caused by papillomaviruses. They are usually benign but some have a high risk for malignant progression.Oncogene Proteins, Viral: Products of viral oncogenes, most commonly retroviral oncogenes. They usually have transforming and often protein kinase activities.Rats, Sprague-Dawley: A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.Polymorphism, Single-Stranded Conformational: Variation in a population's DNA sequence that is detected by determining alterations in the conformation of denatured DNA fragments. Denatured DNA fragments are allowed to renature under conditions that prevent the formation of double-stranded DNA and allow secondary structure to form in single stranded fragments. These fragments are then run through polyacrylamide gels to detect variations in the secondary structure that is manifested as an alteration in migration through the gels.Aminobiphenyl Compounds: Biphenyl compounds substituted in any position by one or more amino groups. Permitted are any substituents except fused rings.Organ Size: The measurement of an organ in volume, mass, or heaviness.Leukoplakia: A white patch lesion found on a MUCOUS MEMBRANE that cannot be scraped off. Leukoplakia is generally considered a precancerous condition, however its appearance may also result from a variety of HEREDITARY DISEASES.Keratosis: Any horny growth such as a wart or callus.Saccharin: Flavoring agent and non-nutritive sweetener.gamma-Glutamyltransferase: An enzyme, sometimes called GGT, with a key role in the synthesis and degradation of GLUTATHIONE; (GSH, a tripeptide that protects cells from many toxins). It catalyzes the transfer of the gamma-glutamyl moiety to an acceptor amino acid.Antineoplastic Agents: Substances that inhibit or prevent the proliferation of NEOPLASMS.Transcription Factors: Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process.Human papillomavirus 16: A type of ALPHAPAPILLOMAVIRUS especially associated with malignant tumors of the CERVIX and the RESPIRATORY MUCOSA.Arsenic: A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), arsenic and certain arsenic compounds have been listed as known carcinogens. (From Merck Index, 11th ed)Barrett Esophagus: A condition with damage to the lining of the lower ESOPHAGUS resulting from chronic acid reflux (ESOPHAGITIS, REFLUX). Through the process of metaplasia, the squamous cells are replaced by a columnar epithelium with cells resembling those of the INTESTINE or the salmon-pink mucosa of the STOMACH. Barrett's columnar epithelium is a marker for severe reflux and precursor to ADENOCARCINOMA of the esophagus.Antimutagenic Agents: Agents that reduce the frequency or rate of spontaneous or induced mutations independently of the mechanism involved.Microsatellite Repeats: A variety of simple repeat sequences that are distributed throughout the GENOME. They are characterized by a short repeat unit of 2-8 basepairs that is repeated up to 100 times. They are also known as short tandem repeats (STRs).
Additive SMILES-based carcinogenicity models: Probabilistic principles in the search for robust predictions. (1/423)
(+info)Functional analysis of familial Asp67Glu and Thr1051Ser BRCA1 mutations in breast/ovarian carcinogenesis. (2/423)
(+info)Lewis Y promotes growth and adhesion of ovarian carcinoma-derived RMG-I cells by upregulating growth factors. (3/423)
(+info)Alcohol intake and folate antagonism via CYP2E1 and ALDH1: effects on oral carcinogenesis. (4/423)
(+info)The propensity for tumorigenesis in human induced pluripotent stem cells is related with genomic instability. (5/423)
(+info)The good, the bad and the ugly: epigenetic mechanisms in glioblastoma. (6/423)
(+info)Analysis of a novel highly metastatic melanoma cell line identifies osteopontin as a new lymphangiogenic factor. (7/423)
(+info)Eicosanoid profiling in colon cancer: emergence of a pattern. (8/423)
(+info)
Carcinogenesis
This model of carcinogenesis is popular because it explains why cancers grow. It would be expected that cells that are damaged ... Carcinogenesis, also called oncogenesis or tumorigenesis, is the formation of a cancer, whereby normal cells are transformed ... There are a number of theories of carcinogenesis and cancer treatment that fall outside the mainstream of scientific opinion, ... Furthermore, in light of the Darwinistic mechanisms of carcinogenesis, it has been theorized that the various forms of cancer ...
Transplacental carcinogenesis
... is a series of genotypic and/or phenotypic changes in the cells of a fetus due to in utero ... Donovan PJ (June 1999). "Cell sensitivity to transplacental carcinogenesis by N-ethyl-N-nitrosourea is greatest in early post- ... Alexandrov V, Aiello C, Rossi L (1990). "Modifying factors in prenatal carcinogenesis (review)". In Vivo. 4 (5): 327-35. PMID ... Magee PN (October 1975). "Transplacental carcinogenesis". Proc. R. Soc. Med. 68 (10): 655-7. PMC 1864063 . PMID 1208519. ...
Carcinogenesis (journal)
1981), "Front matter" (PDF), Carcinogenesis, 2 (1), retrieved 17 August 2010 Anon. (1982), "Front matter" (PDF), Carcinogenesis ... Carcinogenesis, 1 (1), retrieved 17 August 2010 Harris CC. (2008), "Editorial", Carcinogenesis, 29: 1, doi:10.1093/carcin/ ... Carcinogenesis is a peer-reviewed medical journal in the field of cancer biology. It was established in 1980 and is published ... Carcinogenesis is abstracted and indexed in Biological Abstracts, BIOSIS Previews, CAB Abstracts, Chemical Abstracts, Current ...
Spaceflight radiation carcinogenesis
Cucinotta, F.A.; Durante, M. "Risk of Radiation Carcinogenesis" (PDF). Human Health and Performance Risks of Space Exploration ... Cucinotta, F.A.; Durante, M. "Risk of Radiation Carcinogenesis" (PDF). Human Health and Performance Risks of Space Exploration ... Cucinotta, F.A.; Durante, M. "Risk of Radiation Carcinogenesis" (PDF). Human Health and Performance Risks of Space Exploration ... Cucinotta, F.A.; Durante, M. "Risk of Radiation Carcinogenesis" (PDF). Human Health and Performance Risks of Space Exploration ...
Journal of Carcinogenesis
The Journal of Carcinogenesis is a peer-reviewed open access medical journal published by Medknow Publications on behalf of the ... Carcinogenesis Press. The journal covers research in oncology. The journal is abstracted and indexed in: Abstracts on Hygiene ...
Armitage-Doll multistage model of carcinogenesis
Armitage, P. and Doll, R. (1954) "The Age Distribution of Cancer and a Multi-Stage Theory Of Carcinogenesis", British Journ. of ... The Armitage-Doll model is a statistical model of carcinogenesis, proposed in 1954 by Peter Armitage and Richard Doll, which ... The age distribution of cancer and a multistage theory of carcinogenesis", Int. J. Epidemiol. 33(6): 1183-1184 doi:10.1093/ije/ ...
Susan K. Gilmour
Carcinogenesis. 13 (1): 51-56. doi:10.1093/carcin/13.1.51. PMID 1733573. DeFeo, K; Hayes, C; Chernick, M; Van Ryn, J; Gilmour, ... Carcinogenesis. 26 (1): 119-24. doi:10.1093/carcin/bgh281. PMID 15375010. Hayes, CS; DeFeo, K; Lan, L; Paul, B; Sell, C; ... Carcinogenesis. 19 (8): 1409-15. doi:10.1093/carcin/19.8.1409. PMID 9744537. Hogarty, MD; Norris, MD; Davis, K; Liu, X; ... Carcinogenesis. 7 (6): 943-47. doi:10.1093/carcin/7.6.943. PMID 2423265. Gilmour, SK (2007). "Polyamines and nonmelanoma skin ...
Catenin
However, in contrast to Ī±-catenin, heightened Ī²-catenin levels may be associated with carcinogenesis. In particular, abnormal ... Carcinogenesis. 33 (3): 637-43. doi:10.1093/carcin/bgr306. PMID 22198215. Song S, Christova T, Perusini S, Alizadeh S, Bao RY, ...
Aflatoxin B1
Newberne Paul M., Wogan Gerald N. (1968). "Sequential Morphologic Changes in Aflatoxin B1 Carcinogenesis in the Rat". Cancer ... Semela, Maryann (2001). "The chemistry and biology of aflatoxin B1: from mutational spectrometry to carcinogenesis" (PDF). ... Carcinogenesis. 22: 535-545. Ross, R. K.; Yuan, J. M.; Yu, M. C.; Wogan, G. N.; Qian, G. S.; Tu, J. T.; Groopman, J. D.; Gao, Y ... Carcinogenesis. 15 (5): 947-55. doi:10.1093/carcin/15.5.947. PMID 8200100. CS1 maint: Multiple names: authors list (link) ...
Apocarotenal
Carcinogenesis. 25 (5): 827-31. doi:10.1093/carcin/bgh056. PMID 14688018. Some info on apocarotenal Olson, A.J. (1964). "The ...
MAGEB2
Carcinogenesis. 28 (3): 560-71. doi:10.1093/carcin/bgl167. PMID 17012225. Ewing RM, Chu P, Elisma F, et al. (2007). "Large- ...
POLG2
Carcinogenesis. 28 (8): 1731-9. doi:10.1093/carcin/bgm111. PMID 17494052. Huang H, Shiffman ML, Cheung RC, et al. (2006). " ...
AP-1 transcription factor
Carcinogenesis. 28 (3): 738-48. doi:10.1093/carcin/bgl180. PMID 17065199. Ahn JD, Morishita R, Kaneda Y, et al. (June 2001). " ...
Caretaker gene
Carcinogenesis. 26 (10): 1741-7. doi:10.1093/carcin/bgi126. PMID 15905204. ...
Eicosanoid receptor
DuBois RN, Gupta R, Brockman J, Reddy BS, Krakow SL, Lazar MA (1998). "PPAR-Ī³". Carcinogenesis. 19 (1): 49-53. doi:10.1093/ ...
HEPACAM
Carcinogenesis. 29 (12): 2298-305. doi:10.1093/carcin/bgn226. PMID 18845560. Lee LH, Moh MC, Zhang T, Shen S (August 2009). " ...
Cancer
Ultraviolet Radiation Carcinogenesis". In Bast RC, Kufe DW, Pollock RE, et al. Holland-Frei Cancer Medicine (5th ed.). Hamilton ... Many studies of heavy metal-induced carcinogenesis show that such heavy metals cause a reduction in expression of DNA repair ... Carcinogenesis. 27 (12): 2402-8. doi:10.1093/carcin/bgl079. PMC 2612936 . PMID 16728433. Tutt AN, van Oostrom CT, Ross GM, van ... Carcinogenesis (review). 30 (7): 1073-81. doi:10.1093/carcin/bgp127. PMID 19468060. Ungefroren H, Sebens S, Seidl D, Lehnert H ...
PGRMC1
Carcinogenesis. 17 (12): 2609-15. doi:10.1093/carcin/17.12.2609. PMID 9006096. Crudden G, Loesel R, Craven RJ (2005). " ...
PCLKC
Carcinogenesis. 23 (7): 1139-48. doi:10.1093/carcin/23.7.1139. PMID 12117771. "Entrez Gene: PCLKC protocadherin LKC". Yang LY, ...
Mir-572 microRNA precursor family
Carcinogenesis. 33 (7): 1294-1301. doi:10.1093/carcin/bgs179. PMID 22610076. Sand, M.; Skrygan, M.; Sand, D.; Georgas, D.; Hahn ...
Cruciferous vegetables
Carcinogenesis. 33 (10): 1833-42. doi:10.1093/carcin/bgs216. PMC 3529556 . PMID 22739026. Gupta P, Kim B, Kim SH, Srivastava SK ... Carcinogenesis. 21 (6): 1157-62. doi:10.1093/carcin/21.6.1157. PMID 10837004. Bibi Z (2008). "Role of cytochrome P450 in drug ...
Oncogene
Yokota J (March 2000). "Tumor progression and metastasis". Carcinogenesis. 21 (3): 497-503. doi:10.1093/carcin/21.3.497. PMID ...
Psoralen
Carcinogenesis. 2: 121-7. doi:10.1093/carcin/2.2.121. PMID 7273295. Autier P.; Dore J.-F.; Cesarini J.-P. (1997). "Should ...
MPGES-2
Carcinogenesis. 27 (11): 2308-15. doi:10.1093/carcin/bgl073. PMID 16714329. Meng Q, Raha A, Roy S, Hu J, Kalvakolanu DV (May ...
CLPTM1L
Carcinogenesis. 31 (2): 234-8. doi:10.1093/carcin/bgp287. PMID 19955392. Wang Y, Broderick P, Webb E, Wu X, Vijayakrishnan J, ... Carcinogenesis. 30 (6): 987-90. doi:10.1093/carcin/bgp090. PMID 19369581. Broderick P, Wang Y, Vijayakrishnan J, Matakidou A, ... Carcinogenesis. 31 (11): HASH(0x29e0370). doi:10.1093/carcin/bgq179. PMC 2966556 . PMID 20802237. Petersen GM, Amundadottir L, ...
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https://en.wikipedia.org/wiki/Carcinogenesis
https://link.springer.com/book/10.1007/978-1-4615-3694-9
https://www.dkfz.de/en/virus-assoziierte-karzinogenese/index.php
https://link.springer.com/book/10.1007/978-3-642-74778-6
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http://ovid.com/site/catalog/journals/9867.jsp
http://www.ovid.com/site/catalog/journals/9867.jsp
http://www.redorbit.com/news/health/1703953/a_major_breakthrough_in_gastric_carcinogenesis/
https://www.cdc.gov/niosh/nioshtic-2/00012058.html
https://www.hindawi.com/journals/bmri/2015/321740/abs/
http://stke.sciencemag.org/content/2002/119/tw67
http://gut.bmj.com/keyword/molecular-carcinogenesis
http://www.genome.jp/kegg-bin/show_pathway?ko05203+K11406
https://gut.bmj.com/keyword/carcinogenesis
http://wikidoc.org/index.php/Carcinogenesis
https://www.ncbi.nlm.nih.gov/pubmed/17570226?dopt=Abstract
https://www.cancervic.org.au/research/projects/project_cigarette_tar2.html
http://www.iarc.fr/en/research-groups/EGE/current-topics.php
https://www.rainbow.coop/nutritional-library/condition/carcinogenesis/
http://www.biomedsearch.com/nih/Hp01-metals-in-gallbladder-carcinogenesis/17490144.html
https://www.springer.com/us/book/9783642747809?wt_mc=
https://www.cdc.gov/niosh/nioshtic-2/20045268.html
http://www.carcinogenesis.com/showstats.asp?a=tc
https://www.niams.nih.gov/labs/brownell-lab
http://www.labome.org/grant/p01/ca/molecular/mechanisms/molecular-mechanisms-of-multistage-carcinogenesis-7101871.html
Carcinogenesis - Wikipedia
Carcinogenesis, also called oncogenesis or tumorigenesis, is the formation of a cancer, whereby normal cells are transformed ... This model of carcinogenesis is popular because it explains why cancers grow. It would be expected that cells that are damaged ... Dixon K, Kopras E (December 2004). "Genetic alterations and DNA repair in human carcinogenesis". Seminars in Cancer Biology. 14 ... A new way of looking at carcinogenesis comes from integrating the ideas of developmental biology into oncology. The cancer stem ...
https://en.wikipedia.org/wiki/Carcinogenesis
Chemical Carcinogenesis 2 | SpringerLink
chemical carcinogenesis is the general title of the series of international meetings which are held, biannually, in sardinia ( ... DNA apoptosis breast cancer cancer carcinogenesis cell cell death hormones liver prevention tumor ... "chemical carcinogenesis" is the general title of the series of international meetings which are held, biannually, in sardinia ( ... Growth Hormone-Regulated Expression of the c-myc Gene during Sex-Differentiated Promotion of Rat Liver Carcinogenesis ...
https://link.springer.com/book/10.1007/978-1-4615-3694-9
Virus-associated Carcinogenesis
Division of Virus-associated Carcinogenesis. Prof. Dr. Ralf Bartenschlager. Chronic infections with Hepatitis B virus (HBV) and ... Building on this expertise, within the division Virus-Associated Carcinogenesis at the German Cancer Research Center we focus ...
https://www.dkfz.de/en/virus-assoziierte-karzinogenese/index.phpChemical Carcinogenesis and Mutagenesis II | SpringerLink
I have been privileged to witness and participate in the great growth of knowledge on chemical carcinogenesis and mutagenesis ... Carcinom DNA Mutagene Onkogene Viren cancer cancer research carcinogenesis cellular differentiation mutagen mutagenesis ... The important and varied topics that are reviewed here attest to the continued growth of the fields of chemical car- cinogenesis ... I have been privileged to witness and participate in the great growth of knowledge on chemical carcinogenesis and mutagenesis ...
https://link.springer.com/book/10.1007/978-3-642-74778-6
Inflammation in prostate carcinogenesis. - PubMed - NCBI
Inflammation in prostate carcinogenesis.. De Marzo AM1, Platz EA, Sutcliffe S, Xu J, Grƶnberg H, Drake CG, Nakai Y, Isaacs WB, ... Recently, a new hypothesis has been proposed for prostate carcinogenesis. It proposes that exposure to environmental factors ...
https://www.ncbi.nlm.nih.gov/pubmed/17384581?dopt=Abstract
Molecular Carcinogenesis
Home , Journals , Molecular Carcinogenesis View PDF. Molecular Carcinogenesis. Editor(s): John DiGiovanni. Publisher: Wiley. ... carcinogenesis studies in transgenic mice; and research on human tumor viruses. ...
http://ovid.com/site/catalog/journals/9867.jspMolecular Carcinogenesis
Home , Journals , Molecular Carcinogenesis View PDF. Molecular Carcinogenesis. Editor(s): John DiGiovanni. Publisher: Wiley. ... carcinogenesis studies in transgenic mice; and research on human tumor viruses. ...
http://www.ovid.com/site/catalog/journals/9867.jspA Major Breakthrough In Gastric Carcinogenesis - Redorbit
They found that twenty cases (33.9%) showed promoter methylation and no relation was observed with the clinicopathological factors. The promoter methylation of CHFR was frequently accompanied with MIN. Seven of 20 (35.0%) cases showed MIN in hypermethylation of the CHFR tumor, while three of 39 (7.7%) cases showed MIN in the non-methylated CHFR tumor (P , 0.01). However, they failed to find any relationship between CHFR methylation and p53 mutation status ...
http://www.redorbit.com/news/health/1703953/a_major_breakthrough_in_gastric_carcinogenesis/
NIOSHTIC-2 Publications Search - 00012058 - Experimental asbestos carcinogenesis.
NIOSH-Publication; NIOSH-Grant; Dust-inhalation; Asbestos-dusts; Carcinogenesis; Lung-fibrosis; Respiratory-disorders; Lung- ...
https://www.cdc.gov/niosh/nioshtic-2/00012058.htmlLesser-Known Molecules in Ovarian Carcinogenesis
... Ludmila Lozneanu,1 Elena Cojocaru,1 Simona Eliza GiuÅcÄ,1 Alexandru ... Their structural stability, once altered, triggers the initiation of the sequences characteristic for ovarian carcinogenesis, ... motivated by the perspectives provided through the current limited knowledge on their role in ovarian carcinogenesis and on ... of the signaling pathways brings about new advances in the understanding of the pathogenic mechanism of ovarian carcinogenesis ...
https://www.hindawi.com/journals/bmri/2015/321740/abs/
Hypermethylation and Carcinogenesis | Science Signaling
In cancer cells, abnormal methylation patterns of DNA sequences are often present. By examining the role of the PML-RAR fusion gene, a well-studied translocation in leukemia, Di Croce et al. demonstrate that transcriptional silencing in cancer cells can occur through the recruitment of a DNA methyltransferase (Dnmt) by the PML-RAR fusion protein. Recruitment of Dnmts results in the hypermethylation of a PML-RAR target gene, RARĪ²2. In the presence of PML-RAR and Dnmt, cell differentiation was blocked, but this block could be overcome by administration of retinoic acid. Hence, transcription factors associated with neoplasia can function in methylation-linked silencing of genes important for growth and differentiation. Furthermore, the work shows that a genetic change in cancer can induce epigenetic gene silencing. L. Di Croce, V. A. Raker, M. Corsaro, F. Fazi, M. Fanelli, M. Faretta, F. Fuks, F. Lo Coco, T. Kouzarides, C. Nervi, S. Minucci, P. G. Pelicci, Methyltransferase recruitment and DNA ...
http://stke.sciencemag.org/content/2002/119/tw67
molecular carcinogenesis | Gut
Erica Villa, Rosina Critelli, Barbara Lei, Guido Marzocchi, Calogero CammĆ , Gianluigi Giannelli, Patrizia Pontisso, Giuseppe Cabibbo, Marco Enea, Stefano Colopi, Cristian Caporali, Teresa Pollicino, Fabiola Milosa, Aimilia Karampatou, Paola Todesca, Elena Bertolini, Livia Maccio, Maria Luz Martinez-Chantar, Elena Turola, Mariagrazia Del Buono, Nicola De Maria, Stefano Ballestri, Filippo Schepis, Paola Loria, Giorgio Enrico Gerunda, Luisa Losi, Umberto Cillo ...
http://gut.bmj.com/keyword/molecular-carcinogenesisKEGG PATHWAY: Viral carcinogenesis
Viral carcinogenesis [ Pathway menu , Organism menu , Pathway entry , Download KGML , Show description , User data mapping ] ...
http://www.genome.jp/kegg-bin/show_pathway?ko05203+K11406carcinogenesis | Gut
MatthƤus Felsenstein, Michaƫl Noƫ, David L Masica, Waki Hosoda, Peter Chianchiano, Catherine G Fischer, Gemma Lionheart, Lodewijk A A Brosens, Antonio Pea, Jun Yu, Georgios Gemenetzis, Vincent P Groot, Martin A Makary, Jin He, Matthew J Weiss, John L Cameron, Christopher L Wolfgang, Ralph H Hruban, Nicholas J Roberts, Rachel Karchin, Michael G Goggins, Laura D Wood ...
https://gut.bmj.com/keyword/carcinogenesis
Carcinogenesis - wikidoc
This model of carcinogenesis is popular because it explains why cancers grow. It would be expected that cells that are damaged ... Carcinogenesis (meaning literally, the creation of cancer) is the process by which normal cells are transformed into cancer ... Mechanisms of carcinogenesis. Cancer is, ultimately, a disease of genes. In order for cells to start dividing uncontrollably, ... Carcinogenesis is caused by this mutation of the genetic material of normal cells, which upsets the normal balance between ...
http://wikidoc.org/index.php/CarcinogenesisHepatocellular carcinoma: epidemiology and molecular carcinogenesis. - PubMed - NCBI
Hepatocellular carcinoma: epidemiology and molecular carcinogenesis.. El-Serag HB1, Rudolph KL. ...
https://www.ncbi.nlm.nih.gov/pubmed/17570226?dopt=Abstract
Cigarette Tar Carcinogenesis - Cancer Council Victoria
Intimacy counselling. Find out more about our free, confidential counselling with medical specialists trained in intimacy, body image, sexual confidence and relationships. Available to all those facing cancer and their partners, including members of the LGBTQI community. ...
https://www.cancervic.org.au/research/projects/project_cigarette_tar2.html
Mechanisms of Carcinogenesis - Epigenetics Group
You are here: Home / Research / Research Sections / Mechanisms of Carcinogenesis / Epigenetics Group / Current Topics ... You are here: Home / Research / Research Sections / Mechanisms of Carcinogenesis / Epigenetics Group / Current Topics ... Mechanisms of Carcinogenesis - Epigenetics Group. Current Research Topics:. 1. Identifying and characterizing epigenetic ...
http://www.iarc.fr/en/research-groups/EGE/current-topics.php
Carcinogenesis
Radiation Carcinogenesis: Lessons From Chernobyl.. Posted on April 1, 2011. by Dr. Gary Pack ... Conditions: Carcinogenesis, Chemotherapy, Chromate toxicity. *Supplements: Alpha lipoic acid, EGCG (epigallocatechin gallate), ... Cr(6+) causes free radical formation which is toxic to DNA and can lead to carcinogenesis. Treatment studies of Cr(6+) using N- ... Conditions: Breast cancer, Cancer, Carcinogenesis, Colon cancer, DNA damage, Leukemia, Mutation, Papillary thyroid cancer, ...
https://www.rainbow.coop/nutritional-library/condition/carcinogenesis/
Hp01 metals in gallbladder carcinogenesis.
... gallbladder while trace metals are in lower concentration indicating possible role of heavy metal in gallbladder carcinogenesis ...
http://www.biomedsearch.com/nih/Hp01-metals-in-gallbladder-carcinogenesis/17490144.html
Chemical Carcinogenesis and Mutagenesis II | Colin S. Cooper | Springer
I have been privileged to witness and participate in the great growth of knowledge on chemical carcinogenesis and mutagenesis ... Chemical Carcinogenesis and Mutagenesis II. Editors: Cooper, Colin S., Grover, Philip L. (Eds.) ... The important and varied topics that are reviewed here attest to the continued growth of the fields of chemical car- cinogenesis ... I have been privileged to witness and participate in the great growth of knowledge on chemical carcinogenesis and mutagenesis ...
https://www.springer.com/us/book/9783642747809?wt_mc=NIOSHTIC-2 Publications Search - 20045268 - Novel biomarkers of asbestos carcinogenesis.
Biomarkers; Carcinogenesis; Carcinogens; Cancer; Diagnostic-tests; Diagnostic-techniques; Analytical-processes; Construction- ...
https://www.cdc.gov/niosh/nioshtic-2/20045268.html
Journal of Carcinogenesis
... , Published for Carcinogenesis Press by Wolters Kluwer - Medknow Online since 01 August, 2013, New ... Colorectal carcinogenesis: Review of human and experimental animal studies. Takuji Tanaka. 2009, 8:5 (26 March 2009). DOI: ... For colon carcinogenesis, however, constitutive signaling through the canonical Wnt pathway is not a singular event. Here we ... Although inflammation-linked carcinogenesis is a well accepted concept and is often observed within the gastrointestinal tract ...
http://www.carcinogenesis.com/showstats.asp?a=tc
Cutaneous Development and Carcinogenesis Section | NIAMS
... and using mouse genetics to model carcinogenesis in the skin. ... and using mouse genetics to model carcinogenesis in the skin. ... The Cutaneous Development and Carcinogenesis Section studies the signaling pathways such as Hedgehog signaling that regulate ... The Cutaneous Development and Carcinogenesis Section studies the signaling pathways such as Hedgehog signaling that regulate ...
https://www.niams.nih.gov/labs/brownell-labMolecular Mechanisms of Multistage Carcinogenesis
Research Topics about Molecular Mechanisms of Multistage Carcinogenesis ... Molecular Mechanisms of Multistage Carcinogenesis. Summary. Principal Investigator: TREVOR PENNING. Abstract: DESCRIPTION ( ... You are here: Research Grants , P01 , CA , molecular , mechanisms , Molecular Mechanisms of Multistage Carcinogenesis ... contribute to PAHmultistage carcinogenesis. We propose that the electrophilic PAH-o-quinones plus the reactive oxygen species ( ...
http://www.labome.org/grant/p01/ca/molecular/mechanisms/molecular-mechanisms-of-multistage-carcinogenesis-7101871.html
- chemical carcinogenesis" is the general title of the series of international meetings which are held, biannually, in sardinia (Italy) since 1981. (springer.com)
- I have been privileged to witness and participate in the great growth of knowledge on chemical carcinogenesis and mutagenesis since 1939 when I entered graduate school in biochemistry at the University of Wisconsin- Madison. (springer.com)
- In 1942 I joined a fellow graduate student, ELIZABETH CA VERT, in marriage and we soon commenced a joyous part- nership in research on chemical carcinogenesis at the McArdle Laboratory for Cancer Research in the University of Wisconsin Medical School in Madison. (springer.com)
- We report here that PPARĪ³ is a powerful tumor suppressor gene in the colon, and that loss of one allele of PPARĪ³ is sufficient to increase sensitivity to chemical carcinogenesis. (pnas.org)
- Hepatocellular carcinoma: epidemiology and molecular carcinogenesis. (nih.gov)
- Welcome to the Department of Epigenetics and Molecular Carcinogenesis. (mdanderson.org)
- As one of six basic science departments at MD Anderson, with faculty members in both Houston and Smithville, the Department of Epigenetics and Molecular Carcinogenesis makes substantial contributions to the research and education missions of the institution. (mdanderson.org)
- The Center for Cancer Epigenetics (CCE) and the Center for Environmental and Molecular Carcinogenesis (CEMC) . (mdanderson.org)
- The Center for Environmental and Molecular Carcinogenesis (CEMC) also has members in both Smithville and Houston. (mdanderson.org)
- The programme was chosen to explore what is currently known about the mechanisms of mutagenesis and carcinogenesis, induced by environmental agents, and the questions regarding the relationship of these two processes. (waterstones.com)
- Building on this expertise, within the division Virus-Associated Carcinogenesis at the German Cancer Research Center we focus on the molecular and cellular mechanisms leading to persistent infection, how chronic viral hepatitis contributes to liver cancer and how oncogenic viruses develop from an evolutionary point of view. (dkfz.de)
- Oxidative damage to cellular DNA can lead to mutations and may, therefore, play an important role in the initiation and progression of multistage carcinogenesis. (carcinogenesis.com)
- The focus is on human and murine colorectal carcinogenesis and the histogenesis of this malignant disorder. (carcinogenesis.com)
- Effect of Processed Meat on Colorectal Carcinogenesis. (clinicaltrials.gov)
- According to the prevailing accepted theory of carcinogenesis, the somatic mutation theory, mutations in DNA and epimutations that lead to cancer disrupt these orderly processes by disrupting the programming regulating the processes, upsetting the normal balance between proliferation and cell death. (wikipedia.org)
- Resveratrol, but not EGCG, suppressed mammary carcinogenesis (fewer tumors per rat and longer tumor latency). (carcinogenesis.com)
- To delineate COX-2 functions for carcinogenesis, we have used the initiation-promotion model ( 2 ) for the induction of skin tumors in wild-type (wt) NMRI mice and COX-2 transgenic mouse lines. (pnas.org)
- As shown here, overexpression of COX-2 targeted to basal keratinocytes contributes to skin-tumor promotion and progression by establishing an autopromoted skin phenotype, i.e., the initiating dose of DMBA is sufficient to induce skin carcinogenesis in COX-2 transgenic mice. (pnas.org)
- It is certain that chemical carcinogens are toxic to cells and cause DNA damage: however it is still an open question as to how to relate these changes to the different stages of carcinogenesis including initiation. (springer.com)
- Their structural stability, once altered, triggers the initiation of the sequences characteristic for ovarian carcinogenesis, through their role as modulators for several signaling pathways, contributing to the disruption of cellular junctions, disturbance of pro-/antiapoptotic equilibrium, and alteration of transmission of the signals specific for the molecular pathways. (hindawi.com)
- COX-2-selective inhibitors exhibited chemopreventive activity against chemically ( 6 ) and UV light-induced ( 11 , 12 ) skin carcinogenesis in mice. (pnas.org)
- More than one mutation is necessary for carcinogenesis. (wikidoc.org)
- Within this framework, this review presents three protein molecules: ALCAM, c-FLIP, and caveolin, motivated by the perspectives provided through the current limited knowledge on their role in ovarian carcinogenesis and on their potential as prognosis factors. (hindawi.com)
- Conclusion The heavy metals are in higher concentration in carcinoma gallbladder while trace metals are in lower concentration indicating possible role of heavy metal in gallbladder carcinogenesis. (biomedsearch.com)
- Despite the generality of the title, the main effort of the scientific Committee has been to pursue a coherent line around one of the most distinguishing features of carcinogenesis: the "multifasic" development of the process. (springer.com)