Chemokine CCL27: A CC-type chemokine with specificity for CCR10 RECEPTORS. It is constitutively expressed in the skin and may play a role in T-CELL trafficking during cutaneous INFLAMMATION.Chemokine CCL21: A CC-type chemokine with specificity for CCR7 RECEPTORS. It has activity towards DENDRITIC CELLS and T-LYMPHOCYTES.Chemokine CCL22: A CC-type chemokine with specificity for CCR4 RECEPTORS. It has activity towards TH2 CELLS and TC2 CELLS.Chemokine CCL17: A CC-type chemokine that is found at high levels in the THYMUS and has specificity for CCR4 RECEPTORS. It is synthesized by DENDRITIC CELLS; ENDOTHELIAL CELLS; KERATINOCYTES; and FIBROBLASTS.Chemokine CCL2: A chemokine that is a chemoattractant for MONOCYTES and may also cause cellular activation of specific functions related to host defense. It is produced by LEUKOCYTES of both monocyte and lymphocyte lineage and by FIBROBLASTS during tissue injury. It has specificity for CCR2 RECEPTORS.Chemokine CCL19: A CC-type chemokine with specificity for CCR7 RECEPTORS. It has activity towards T LYMPHOCYTES and B LYMPHOCYTES.Chemokine CCL5: A CC-type chemokine that is a chemoattractant for EOSINOPHILS; MONOCYTES; and LYMPHOCYTES. It is a potent and selective eosinophil chemotaxin that is stored in and released from PLATELETS and activated T-LYMPHOCYTES. Chemokine CCL5 is specific for CCR1 RECEPTORS; CCR3 RECEPTORS; and CCR5 RECEPTORS. The acronym RANTES refers to Regulated on Activation, Normal T Expressed and Secreted.Chemokine CCL20: A CC-type chemokine with specificity for CCR6 RECEPTORS. It has activity towards DENDRITIC CELLS; T-LYMPHOCYTES; and B-LYMPHOCYTES.Chemokine CCL1: A CC-type chemokine secreted by activated MONOCYTES and T-LYMPHOCYTES. It has specificity for CCR8 RECEPTORS.Chemokines, CC: Group of chemokines with adjacent cysteines that are chemoattractants for lymphocytes, monocytes, eosinophils, basophils but not neutrophils.Receptors, Chemokine: Cell surface glycoproteins that bind to chemokines and thus mediate the migration of pro-inflammatory molecules. The receptors are members of the seven-transmembrane G protein-coupled receptor family. Like the CHEMOKINES themselves, the receptors can be divided into at least three structural branches: CR, CCR, and CXCR, according to variations in a shared cysteine motif.Chemokine CCL3: A CC chemokine with specificity for CCR1 RECEPTORS and CCR5 RECEPTORS. It is a chemoattractant for NK CELLS; MONOCYTES; and a variety of other immune cells. This chemokine is encoded by multiple genes.Chemokine CCL7: A monocyte chemoattractant protein that has activity towards a broad variety of immune cell types. Chemokine CCL7 has specificity for CCR1 RECEPTORS; CCR2 RECEPTORS; and CCR5 RECEPTORS.Chemokines: Class of pro-inflammatory cytokines that have the ability to attract and activate leukocytes. They can be divided into at least three structural branches: C; (CHEMOKINES, C); CC; (CHEMOKINES, CC); and CXC; (CHEMOKINES, CXC); according to variations in a shared cysteine motif.Receptors, CCR10: CCR receptors with specificity for CHEMOKINE CCL27. They may play a specialized role in the cutaneous homing of LYMPHOCYTES.Chemokine CCL4: A CC chemokine with specificity for CCR5 RECEPTORS. It is a chemoattractant for NK CELLS; MONOCYTES and a variety of other immune cells. This chemokine is encoded by multiple genes.Chemokine CXCL12: A CXC chemokine that is chemotactic for T-LYMPHOCYTES and MONOCYTES. It has specificity for CXCR4 RECEPTORS. Two isoforms of CXCL12 are produced by alternative mRNA splicing.Receptors, CCR1: CCR receptors with specificity for a broad variety of CC CHEMOKINES. They are expressed at high levels in MONOCYTES; tissue MACROPHAGES; NEUTROPHILS; and EOSINOPHILS.Chemokine CXCL10: A CXC chemokine that is induced by GAMMA-INTERFERON and is chemotactic for MONOCYTES and T-LYMPHOCYTES. It has specificity for the CXCR3 RECEPTOR.Receptors, CCR2: CCR receptors with specificity for CHEMOKINE CCL2 and several other CCL2-related chemokines. They are expressed at high levels in T-LYMPHOCYTES; B-LYMPHOCYTES; MACROPHAGES; BASOPHILS; and NK CELLS.Chemokine CCL8: A monocyte chemoattractant protein that attracts MONOCYTES; LYMPHOCYTES; BASOPHILS; and EOSINOPHILS. Chemokine CCL8 has specificity for CCR3 RECEPTORS and CCR5 RECEPTORS.Chemotaxis, Leukocyte: The movement of leukocytes in response to a chemical concentration gradient or to products formed in an immunologic reaction.Receptors, CCR: Chemokine receptors that are specific for CC CHEMOKINES.Chemokine CCL11: A CC-type chemokine that is specific for CCR3 RECEPTORS. It is a potent chemoattractant for EOSINOPHILS.Chemokine CXCL1: A CXC chemokine with specificity for CXCR2 RECEPTORS. It has growth factor activities and is implicated as a oncogenic factor in several tumor types.Chemokine CCL24: A CC-type chemokine with specificity for CCR3 RECEPTORS. It is a chemoattractant for EOSINOPHILS.Receptors, CCR7: CCR receptors with specificity for CHEMOKINE CCL19 and CHEMOKINE CCL21. They are expressed at high levels in T-LYMPHOCYTES; B-LYMPHOCYTES; and DENDRITIC CELLS.Receptors, CCR8: CCR receptors with specificity for CHEMOKINE CCL1. They are expressed at high levels in T-LYMPHOCYTES; B-LYMPHOCYTES; and MACROPHAGES.Receptors, CCR4: CCR receptors with specificity for CHEMOKINE CCL17 and CHEMOKINE CCL22. They are expressed at high levels in T-LYMPHOCYTES; MAST CELLS; DENDRITIC CELLS; and NK CELLS.Chemokines, CXC: Group of chemokines with paired cysteines separated by a different amino acid. CXC chemokines are chemoattractants for neutrophils but not monocytes.Chemokine CX3CL1: A CX3C chemokine that is a transmembrane protein found on the surface of cells. The soluble form of chemokine CX3CL1 can be released from cell surface by proteolysis and act as a chemoattractant that may be involved in the extravasation of leukocytes into inflamed tissues. The membrane form of the protein may also play a role in cell adhesion.Mice, Inbred C57BLMacrophage Inflammatory Proteins: Heparin-binding proteins that exhibit a number of inflammatory and immunoregulatory activities. Originally identified as secretory products of MACROPHAGES, these chemokines are produced by a variety of cell types including NEUTROPHILS; FIBROBLASTS; and EPITHELIAL CELLS. They likely play a significant role in respiratory tract defenses.Cell Movement: The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell.Receptors, CCR5: CCR receptors with specificity for CHEMOKINE CCL3; CHEMOKINE CCL4; and CHEMOKINE CCL5. They are expressed at high levels in T-LYMPHOCYTES; B-LYMPHOCYTES; MACROPHAGES; MAST CELLS; and NK CELLS. The CCR5 receptor is used by the HUMAN IMMUNODEFICIENCY VIRUS to infect cells.Receptors, CCR3: CCR receptors with specificity for CHEMOKINE CCL11 and a variety of other CC CHEMOKINES. They are expressed at high levels in T-LYMPHOCYTES; EOSINOPHILS; BASOPHILS; and MAST CELLS.Chemokine CXCL9: An INTEFERON-inducible CXC chemokine that is specific for the CXCR3 RECEPTOR.Chemokine CXCL2: A CXC chemokine that is synthesized by activated MONOCYTES and NEUTROPHILS. It has specificity for CXCR2 RECEPTORS.Cells, Cultured: Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.Chemotaxis: The movement of cells or organisms toward or away from a substance in response to its concentration gradient.Receptors, CXCR4: CXCR receptors with specificity for CXCL12 CHEMOKINE. The receptors may play a role in HEMATOPOIESIS regulation and can also function as coreceptors for the HUMAN IMMUNODEFICIENCY VIRUS.Chemokine CXCL11: A CXC chemokine that is induced by GAMMA-INTERFERON. It is a chemotactic factor for activated T-LYMPHOCYTES and has specificity for the CXCR3 RECEPTOR.Chemokine CXCL13: A CXC chemokine that is chemotactic for B-LYMPHOCYTES. It has specificity for CXCR5 RECEPTORS.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.Chemokine CXCL6: A CXC chemokine that has stimulatory and chemotactic activities towards NEUTROPHILS. It has specificity for CXCR1 RECEPTORS and CXCR2 RECEPTORS.Cytokines: Non-antibody proteins secreted by inflammatory leukocytes and some non-leukocytic cells, that act as intercellular mediators. They differ from classical hormones in that they are produced by a number of tissue or cell types rather than by specialized glands. They generally act locally in a paracrine or autocrine rather than endocrine manner.Dendritic Cells: Specialized cells of the hematopoietic system that have branch-like extensions. They are found throughout the lymphatic system, and in non-lymphoid tissues such as SKIN and the epithelia of the intestinal, respiratory, and reproductive tracts. They trap and process ANTIGENS, and present them to T-CELLS, thereby stimulating CELL-MEDIATED IMMUNITY. They are different from the non-hematopoietic FOLLICULAR DENDRITIC CELLS, which have a similar morphology and immune system function, but with respect to humoral immunity (ANTIBODY PRODUCTION).Chemokine CXCL5: A CXC chemokine that is predominantly expressed in EPITHELIAL CELLS. It has specificity for the CXCR2 RECEPTORS and is involved in the recruitment and activation of NEUTROPHILS.Receptors, CXCR3: CXCR receptors that are expressed on the surface of a number of cell types, including T-LYMPHOCYTES; NK CELLS; DENDRITIC CELLS; and a subset of B-LYMPHOCYTES. The receptors are activated by CHEMOKINE CXCL9; CHEMOKINE CXCL10; and CHEMOKINE CXCL11.Macrophages: The relatively long-lived phagocytic cell of mammalian tissues that are derived from blood MONOCYTES. Main types are PERITONEAL MACROPHAGES; ALVEOLAR MACROPHAGES; HISTIOCYTES; KUPFFER CELLS of the liver; and OSTEOCLASTS. They may further differentiate within chronic inflammatory lesions to EPITHELIOID CELLS or may fuse to form FOREIGN BODY GIANT CELLS or LANGHANS GIANT CELLS. (from The Dictionary of Cell Biology, Lackie and Dow, 3rd ed.)Mice, Inbred BALB CRecruitment, Neurophysiological: The spread of response if stimulation is prolonged. (Campbell's Psychiatric Dictionary, 8th ed.)Gene Expression Regulation: Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation.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.Monocytes: Large, phagocytic mononuclear leukocytes produced in the vertebrate BONE MARROW and released into the BLOOD; contain a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles.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.Inflammation: A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function.Cell Line: Established cell cultures that have the potential to propagate indefinitely.T-Lymphocytes: 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.Receptors, Interleukin-8B: High-affinity G-protein-coupled receptors for INTERLEUKIN-8 present on NEUTROPHILS; MONOCYTES; and T-LYMPHOCYTES. These receptors also bind several other CXC CHEMOKINES.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.Flow Cytometry: 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.Protein Binding: The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments.Enzyme-Linked Immunosorbent Assay: 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.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.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.Mice, Transgenic: Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN.Ligands: A molecule that binds to another molecule, used especially to refer to a small molecule that binds specifically to a larger molecule, e.g., an antigen binding to an antibody, a hormone or neurotransmitter binding to a receptor, or a substrate or allosteric effector binding to an enzyme. Ligands are also molecules that donate or accept a pair of electrons to form a coordinate covalent bond with the central metal atom of a coordination complex. (From Dorland, 27th ed)Skin: The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.Monocyte Chemoattractant Proteins: Chemokines that are chemoattractants for monocytes. These CC chemokines (cysteines adjacent) number at least three including CHEMOKINE CCL2.Interleukin-8: A member of the CXC chemokine family that plays a role in the regulation of the acute inflammatory response. It is secreted by variety of cell types and induces CHEMOTAXIS of NEUTROPHILS and other inflammatory cells.Dermatitis, Atopic: A chronic inflammatory genetically determined disease of the skin marked by increased ability to form reagin (IgE), with increased susceptibility to allergic rhinitis and asthma, and hereditary disposition to a lowered threshold for pruritus. It is manifested by lichenification, excoriation, and crusting, mainly on the flexural surfaces of the elbow and knee. In infants it is known as infantile eczema.Neutrophil Infiltration: The diffusion or accumulation of neutrophils in tissues or cells in response to a wide variety of substances released at the sites of inflammatory reactions.Cell Line, Tumor: A cell line derived from cultured tumor cells.CD4-Positive T-Lymphocytes: A critical subpopulation of T-lymphocytes involved in the induction of most immunological functions. The HIV virus has selective tropism for the T4 cell which expresses the CD4 phenotypic marker, a receptor for HIV. In fact, the key element in the profound immunosuppression seen in HIV infection is the depletion of this subset of T-lymphocytes.Receptors, CCR6: CCR receptors with specificity for CHEMOKINE CCL20. They are expressed at high levels in T-LYMPHOCYTES; B-LYMPHOCYTES; and DENDRITIC CELLS.NF-kappa B: Ubiquitous, inducible, nuclear transcriptional activator that binds to enhancer elements in many different cell types and is activated by pathogenic stimuli. The NF-kappa B complex is a heterodimer composed of two DNA-binding subunits: NF-kappa B1 and relA.Lymph Nodes: They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system.Receptors, Interleukin-8A: High-affinity G-protein-coupled receptors for INTERLEUKIN-8 present on NEUTROPHILS; MONOCYTES; and BASOPHILS.Tumor Necrosis Factor-alpha: Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS.Immunohistochemistry: Histochemical localization of immunoreactive substances using labeled antibodies as reagents.Receptors, CXCR: Chemokine receptors that are specific for CXC CHEMOKINES.Chemotactic Factors: Chemical substances that attract or repel cells. The concept denotes especially those factors released as a result of tissue injury, microbial invasion, or immunologic activity, that attract LEUKOCYTES; MACROPHAGES; or other cells to the site of infection or insult.Neutrophils: Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes.Endothelial Cells: Highly specialized EPITHELIAL CELLS that line the HEART; BLOOD VESSELS; and lymph vessels, forming the ENDOTHELIUM. They are polygonal in shape and joined together by TIGHT JUNCTIONS. The tight junctions allow for variable permeability to specific macromolecules that are transported across the endothelial layer.Receptors, Cytokine: Cell surface proteins that bind cytokines and trigger intracellular changes influencing the behavior of cells.T-Lymphocytes, Regulatory: CD4-positive T cells that inhibit immunopathology or autoimmune disease in vivo. They inhibit the immune response by influencing the activity of other cell types. Regulatory T-cells include naturally occurring CD4+CD25+ cells, IL-10 secreting Tr1 cells, and Th3 cells.Chemokines, CX3C: Group of chemokines with the first two cysteines separated by three amino acids. CX3C chemokines are chemotactic for natural killer cells, monocytes, and activated T-cells.Carbon Tetrachloride: A solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins, and a starting material in the manufacturing of organic compounds. Poisoning by inhalation, ingestion or skin absorption is possible and may be fatal. (Merck Index, 11th ed)Lymphocyte Activation: 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.CD8-Positive T-Lymphocytes: A critical subpopulation of regulatory T-lymphocytes involved in MHC Class I-restricted interactions. They include both cytotoxic T-lymphocytes (T-LYMPHOCYTES, CYTOTOXIC) and CD8+ suppressor T-lymphocytes.Receptors, CXCR5: CXCR receptors isolated initially from BURKITT LYMPHOMA cells. CXCR5 receptors are expressed on mature, recirculating B-LYMPHOCYTES and are specific for CHEMOKINE CXCL13.Leukocytes: White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES).Monokines: Soluble mediators of the immune response that are neither antibodies nor complement. They are produced largely, but not exclusively, by monocytes and macrophages.Lung: Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.Molecular Sequence Data: 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.Amino Acid Sequence: 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.Cell Adhesion: Adherence of cells to surfaces or to other cells.Patient Selection: Criteria and standards used for the determination of the appropriateness of the inclusion of patients with specific conditions in proposed treatment plans and the criteria used for the inclusion of subjects in various clinical trials and other research protocols.Eosinophils: Granular leukocytes with a nucleus that usually has two lobes connected by a slender thread of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin.Chemotactic Factors, Eosinophil: Cytotaxins liberated from normal or invading cells that specifically attract eosinophils; they may be complement fragments, lymphokines, neutrophil products, histamine or other; the best known is the tetrapeptide ECF-A, released mainly by mast cells.Receptors, HIV: Cellular receptors that bind the human immunodeficiency virus that causes AIDS. Included are CD4 ANTIGENS, found on T4 lymphocytes, and monocytes/macrophages, which bind to the HIV ENVELOPE PROTEIN GP120.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Inflammation Mediators: The endogenous compounds that mediate inflammation (AUTACOIDS) and related exogenous compounds including the synthetic prostaglandins (PROSTAGLANDINS, SYNTHETIC).Gene Expression: The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.Cell Migration Inhibition: Phenomenon of cell-mediated immunity measured by in vitro inhibition of the migration or phagocytosis of antigen-stimulated LEUKOCYTES or MACROPHAGES. Specific CELL MIGRATION ASSAYS have been developed to estimate levels of migration inhibitory factors, immune reactivity against tumor-associated antigens, and immunosuppressive effects of infectious microorganisms.Duffy Blood-Group System: A blood group consisting mainly of the antigens Fy(a) and Fy(b), determined by allelic genes, the frequency of which varies profoundly in different human groups; amorphic genes are common.Interferon-gamma: The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES.Protein Structure, Tertiary: The level of protein structure in which combinations of secondary protein structures (alpha helices, beta sheets, loop regions, and motifs) pack together to form folded shapes called domains. Disulfide bridges between cysteines in two different parts of the polypeptide chain along with other interactions between the chains play a role in the formation and stabilization of tertiary structure. Small proteins usually consist of only one domain but larger proteins may contain a number of domains connected by segments of polypeptide chain which lack regular secondary structure.Carbon Tetrachloride PoisoningPhosphorylation: The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety.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.Heterocyclic Compounds: Ring compounds having atoms other than carbon in their nuclei. (Grant & Hackh's Chemical Dictionary, 5th ed)Th2 Cells: Subset of helper-inducer T-lymphocytes which synthesize and secrete the interleukins IL-4, IL-5, IL-6, and IL-10. These cytokines influence B-cell development and antibody production as well as augmenting humoral responses.Lipopolysaccharides: Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed)Transcription, Genetic: The biosynthesis of RNA carried out on a template of DNA. The biosynthesis of DNA from an RNA template is called REVERSE TRANSCRIPTION.Transfection: The uptake of naked or purified DNA by CELLS, usually meaning the process as it occurs in eukaryotic cells. It is analogous to bacterial transformation (TRANSFORMATION, BACTERIAL) and both are routinely employed in GENE TRANSFER TECHNIQUES.Protein Transport: The process of moving proteins from one cellular compartment (including extracellular) to another by various sorting and transport mechanisms such as gated transport, protein translocation, and vesicular transport.Personnel Selection: The process of choosing employees for specific types of employment. The concept includes recruitment.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.Transcription Factors: Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process.Recombinant Proteins: Proteins prepared by recombinant DNA technology.Intercellular Signaling Peptides and Proteins: Regulatory proteins and peptides that are signaling molecules involved in the process of PARACRINE COMMUNICATION. They are generally considered factors that are expressed by one cell and are responded to by receptors on another nearby cell. They are distinguished from HORMONES in that their actions are local rather than distal.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.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.HIV-1: The type species of LENTIVIRUS and the etiologic agent of AIDS. It is characterized by its cytopathic effect and affinity for the T4-lymphocyte.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.Recombinant Fusion Proteins: 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.Bronchoalveolar Lavage Fluid: Washing liquid obtained from irrigation of the lung, including the BRONCHI and the PULMONARY ALVEOLI. It is generally used to assess biochemical, inflammatory, or infection status of the lung.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.Immunity, Innate: The capacity of a normal organism to remain unaffected by microorganisms and their toxins. It results from the presence of naturally occurring ANTI-INFECTIVE AGENTS, constitutional factors such as BODY TEMPERATURE and immediate acting immune cells such as NATURAL KILLER CELLS.Cell Differentiation: Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.Membrane Proteins: Proteins which are found in membranes including cellular and intracellular membranes. They consist of two types, peripheral and integral proteins. They include most membrane-associated enzymes, antigenic proteins, transport proteins, and drug, hormone, and lectin receptors.HeLa Cells: The first continuously cultured human malignant CELL LINE, derived from the cervical carcinoma of Henrietta Lacks. These cells are used for VIRUS CULTIVATION and antitumor drug screening assays.Base Sequence: The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.Binding Sites: The parts of a macromolecule that directly participate in its specific combination with another molecule.Endothelium, Vascular: Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.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.Antigens, CD: 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.Th1 Cells: Subset of helper-inducer T-lymphocytes which synthesize and secrete interleukin-2, gamma-interferon, and interleukin-12. Due to their ability to kill antigen-presenting cells and their lymphokine-mediated effector activity, Th1 cells are associated with vigorous delayed-type hypersensitivity reactions.Intercellular Adhesion Molecule-1: A cell-surface ligand involved in leukocyte adhesion and inflammation. Its production is induced by gamma-interferon and it is required for neutrophil migration into inflamed tissue.Nuclear Proteins: Proteins found in the nucleus of a cell. Do not confuse with NUCLEOPROTEINS which are proteins conjugated with nucleic acids, that are not necessarily present in the nucleus.Leukocyte Rolling: Movement of tethered, spherical LEUKOCYTES along the endothelial surface of the microvasculature. The tethering and rolling involves interaction with SELECTINS and other adhesion molecules in both the ENDOTHELIUM and leukocyte. The rolling leukocyte then becomes activated by CHEMOKINES, flattens out, and firmly adheres to the endothelial surface in preparation for transmigration through the interendothelial cell junction. (From Abbas, Cellular and Molecular Immunology, 3rd ed)Leukocytes, Mononuclear: Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules.Cell Proliferation: All of the processes involved in increasing CELL NUMBER including CELL DIVISION.Fibroblasts: Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules.T-Lymphocyte Subsets: A classification of T-lymphocytes, especially into helper/inducer, suppressor/effector, and cytotoxic subsets, based on structurally or functionally different populations of cells.Bone Marrow Cells: Cells contained in the bone marrow including fat cells (see ADIPOCYTES); STROMAL CELLS; MEGAKARYOCYTES; and the immediate precursors of most blood cells.Adaptor Proteins, Signal Transducing: A broad category of carrier proteins that play a role in SIGNAL TRANSDUCTION. They generally contain several modular domains, each of which having its own binding activity, and act by forming complexes with other intracellular-signaling molecules. Signal-transducing adaptor proteins lack enzyme activity, however their activity can be modulated by other signal-transducing enzymesGene Expression Profiling: The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell.P-Selectin: Cell adhesion molecule and CD antigen that mediates the adhesion of neutrophils and monocytes to activated platelets and endothelial cells.Antigens, CD11b: A CD antigen that contains a conserved I domain which is involved in ligand binding. When combined with CD18 the two subunits form MACROPHAGE-1 ANTIGEN.Transcriptional Activation: Processes that stimulate the GENETIC TRANSCRIPTION of a gene or set of genes.RNA, Small Interfering: Small double-stranded, non-protein coding RNAs (21-31 nucleotides) involved in GENE SILENCING functions, especially RNA INTERFERENCE (RNAi). Endogenously, siRNAs are generated from dsRNAs (RNA, DOUBLE-STRANDED) by the same ribonuclease, Dicer, that generates miRNAs (MICRORNAS). The perfect match of the siRNAs' antisense strand to their target RNAs mediates RNAi by siRNA-guided RNA cleavage. siRNAs fall into different classes including trans-acting siRNA (tasiRNA), repeat-associated RNA (rasiRNA), small-scan RNA (scnRNA), and Piwi protein-interacting RNA (piRNA) and have different specific gene silencing functions.Cell Adhesion Molecules: 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.Chromatin Immunoprecipitation: A technique for identifying specific DNA sequences that are bound, in vivo, to proteins of interest. It involves formaldehyde fixation of CHROMATIN to crosslink the DNA-BINDING PROTEINS to the DNA. After shearing the DNA into small fragments, specific DNA-protein complexes are isolated by immunoprecipitation with protein-specific ANTIBODIES. Then, the DNA isolated from the complex can be identified by PCR amplification and sequencing.Stromal Cells: Connective tissue cells of an organ found in the loose connective tissue. These are most often associated with the uterine mucosa and the ovary as well as the hematopoietic system and elsewhere.Histones: Small chromosomal proteins (approx 12-20 kD) possessing an open, unfolded structure and attached to the DNA in cell nuclei by ionic linkages. Classification into the various types (designated histone I, histone II, etc.) is based on the relative amounts of arginine and lysine in each.Enzyme Activation: Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme.Dose-Response Relationship, Drug: The relationship between the dose of an administered drug and the response of the organism to the drug.HEK293 Cells: A cell line generated from human embryonic kidney cells that were transformed with human adenovirus type 5.Lymphoid Tissue: Specialized tissues that are components of the lymphatic system. They provide fixed locations within the body where a variety of LYMPHOCYTES can form, mature and multiply. The lymphoid tissues are connected by a network of LYMPHATIC VESSELS.Membrane Glycoproteins: Glycoproteins found on the membrane or surface of cells.Macrophages, Alveolar: Round, granular, mononuclear phagocytes found in the alveoli of the lungs. They ingest small inhaled particles resulting in degradation and presentation of the antigen to immunocompetent cells.Cell Communication: Any of several ways in which living cells of an organism communicate with one another, whether by direct contact between cells or by means of chemical signals carried by neurotransmitter substances, hormones, and cyclic AMP.Cell Membrane: The lipid- and protein-containing, selectively permeable membrane that surrounds the cytoplasm in prokaryotic and eukaryotic cells.Vascular Cell Adhesion Molecule-1: Cytokine-induced cell adhesion molecule present on activated endothelial cells, tissue macrophages, dendritic cells, bone marrow fibroblasts, myoblasts, and myotubes. It is important for the recruitment of leukocytes to sites of inflammation. (From Pigott & Power, The Adhesion Molecule FactsBook, 1993, p154)Liver: A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.Interleukin-6: A cytokine that stimulates the growth and differentiation of B-LYMPHOCYTES and is also a growth factor for HYBRIDOMAS and plasmacytomas. It is produced by many different cells including T-LYMPHOCYTES; MONOCYTES; and FIBROBLASTS.Interleukin-1beta: An interleukin-1 subtype that is synthesized as an inactive membrane-bound pro-protein. Proteolytic processing of the precursor form by CASPASE 1 results in release of the active form of interleukin-1beta from the membrane.Jurkat Cells: A CELL LINE derived from human T-CELL LEUKEMIA and used to determine the mechanism of differential susceptibility to anti-cancer drugs and radiation.Coculture Techniques: A technique of culturing mixed cell types in vitro to allow their synergistic or antagonistic interactions, such as on CELL DIFFERENTIATION or APOPTOSIS. Coculture can be of different types of cells, tissues, or organs from normal or disease states.Integrin alpha4: An integrin alpha subunit that is unique in that it does not contain an I domain, and its proteolytic cleavage site is near the middle of the extracellular portion of the polypeptide rather than close to the membrane as in other integrin alpha subunits.Calcium: A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.Ovalbumin: An albumin obtained from the white of eggs. It is a member of the serpin superfamily.Interleukin-1: A soluble factor produced by MONOCYTES; MACROPHAGES, and other cells which activates T-lymphocytes and potentiates their response to mitogens or antigens. Interleukin-1 is a general term refers to either of the two distinct proteins, INTERLEUKIN-1ALPHA and INTERLEUKIN-1BETA. The biological effects of IL-1 include the ability to replace macrophage requirements for T-cell activation.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.Microglia: The third type of glial cell, along with astrocytes and oligodendrocytes (which together form the macroglia). Microglia vary in appearance depending on developmental stage, functional state, and anatomical location; subtype terms include ramified, perivascular, ameboid, resting, and activated. Microglia clearly are capable of phagocytosis and play an important role in a wide spectrum of neuropathologies. They have also been suggested to act in several other roles including in secretion (e.g., of cytokines and neural growth factors), in immunological processing (e.g., antigen presentation), and in central nervous system development and remodeling.Endothelium, Lymphatic: Unbroken cellular lining (intima) of the lymph vessels (e.g., the high endothelial lymphatic venules). It is more permeable than vascular endothelium, lacking selective absorption and functioning mainly to remove plasma proteins that have filtered through the capillaries into the tissue spaces.Chromatin: The material of CHROMOSOMES. It is a complex of DNA; HISTONES; and nonhistone proteins (CHROMOSOMAL PROTEINS, NON-HISTONE) found within the nucleus of a cell.Venules: The minute vessels that collect blood from the capillary plexuses and join together to form veins.Receptors, Cell Surface: Cell surface proteins that bind signalling molecules external to the cell with high affinity and convert this extracellular event into one or more intracellular signals that alter the behavior of the target cell (From Alberts, Molecular Biology of the Cell, 2nd ed, pp693-5). Cell surface receptors, unlike enzymes, do not chemically alter their ligands.Repressor Proteins: Proteins which maintain the transcriptional quiescence of specific GENES or OPERONS. Classical repressor proteins are DNA-binding proteins that are normally bound to the OPERATOR REGION of an operon, or the ENHANCER SEQUENCES of a gene until a signal occurs that causes their release.Pneumonia: Infection of the lung often accompanied by inflammation.Actins: Filamentous proteins that are the main constituent of the thin filaments of muscle fibers. The filaments (known also as filamentous or F-actin) can be dissociated into their globular subunits; each subunit is composed of a single polypeptide 375 amino acids long. This is known as globular or G-actin. In conjunction with MYOSINS, actin is responsible for the contraction and relaxation of muscle.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.Platelet Factor 4: A CXC chemokine that is found in the alpha granules of PLATELETS. The protein has a molecular size of 7800 kDa and can occur as a monomer, a dimer or a tetramer depending upon its concentration in solution. Platelet factor 4 has a high affinity for HEPARIN and is often found complexed with GLYCOPROTEINS such as PROTEIN C.COS Cells: CELL LINES derived from the CV-1 cell line by transformation with a replication origin defective mutant of SV40 VIRUS, which codes for wild type large T antigen (ANTIGENS, POLYOMAVIRUS TRANSFORMING). They are used for transfection and cloning. (The CV-1 cell line was derived from the kidney of an adult male African green monkey (CERCOPITHECUS AETHIOPS).)Microscopy, Fluorescence: Microscopy of specimens stained with fluorescent dye (usually fluorescein isothiocyanate) or of naturally fluorescent materials, which emit light when exposed to ultraviolet or blue light. Immunofluorescence microscopy utilizes antibodies that are labeled with fluorescent dye.Arrestins: Regulatory proteins that down-regulate phosphorylated G-protein membrane receptors, including rod and cone photoreceptors and adrenergic receptors.Carrier Proteins: Transport proteins that carry specific substances in the blood or across cell membranes.RNA Interference: A gene silencing phenomenon whereby specific dsRNAs (RNA, DOUBLE-STRANDED) trigger the degradation of homologous mRNA (RNA, MESSENGER). The specific dsRNAs are processed into SMALL INTERFERING RNA (siRNA) which serves as a guide for cleavage of the homologous mRNA in the RNA-INDUCED SILENCING COMPLEX. DNA METHYLATION may also be triggered during this process.B-Lymphocytes: Lymphoid cells concerned with humoral immunity. They are short-lived cells resembling bursa-derived lymphocytes of birds in their production of immunoglobulin upon appropriate stimulation.Green Fluorescent Proteins: Protein analogs and derivatives of the Aequorea victoria green fluorescent protein that emit light (FLUORESCENCE) when excited with ULTRAVIOLET RAYS. They are used in REPORTER GENES in doing GENETIC TECHNIQUES. Numerous mutants have been made to emit other colors or be sensitive to pH.Microscopy, Confocal: A light microscopic technique in which only a small spot is illuminated and observed at a time. An image is constructed through point-by-point scanning of the field in this manner. Light sources may be conventional or laser, and fluorescence or transmitted observations are possible.Lymphocytes: White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS.Spleen: An encapsulated lymphatic organ through which venous blood filters.Amino Acid Motifs: Commonly observed structural components of proteins formed by simple combinations of adjacent secondary structures. A commonly observed structure may be composed of a CONSERVED SEQUENCE which can be represented by a CONSENSUS SEQUENCE.Interleukin-4: A soluble factor produced by activated T-LYMPHOCYTES that induces the expression of MHC CLASS II GENES and FC RECEPTORS on B-LYMPHOCYTES and causes their proliferation and differentiation. It also acts on T-lymphocytes, MAST CELLS, and several other hematopoietic lineage cells.Thioglycolates: Organic esters of thioglycolic acid (HS-CH2COOH).Peritonitis: INFLAMMATION of the PERITONEUM lining the ABDOMINAL CAVITY as the result of infectious, autoimmune, or chemical processes. Primary peritonitis is due to infection of the PERITONEAL CAVITY via hematogenous or lymphatic spread and without intra-abdominal source. Secondary peritonitis arises from the ABDOMINAL CAVITY itself through RUPTURE or ABSCESS of intra-abdominal organs.
CCL11, CCL24, CCL26, CCL5, CCL7, CCL13, and CCL3. Chemokines CCL11 (eotaxin) and CCL5 (RANTES) acts through a specific receptor ... T-lymphocytes: the four key chemokines that are involved in the recruitment of T lymphocytes to the site of inflammation are: ... C4-CC chemokines), but a small number of CC chemokines possess six cysteines (C6-CC chemokines). C6-CC chemokines include CCL1 ... The third group of chemokines is known as the C chemokines (or γ chemokines), and is unlike all other chemokines in that it has ...
Chemokine receptors for which CCL11 is a ligand include CCR2, CCR3 and CCR5. However, it has been found that eotaxin-1 (CCL11) ... Expression, receptor binding, and functional properties suggest a mechanism for the selective recruitment of eosinophils". The ... CCL11 is a small cytokine belonging to the CC chemokine family. CCL11 selectively recruits eosinophils by inducing their ... The effects of CCL11 are mediated by its binding to a G-protein-linked receptor known as a chemokine receptor. ...
This receptor binds and responds to a variety of chemokines, including eotaxin (CCL11), eotaxin-3 (CCL26), MCP-3 (CCL7), MCP-4 ... Expression, receptor binding, and functional properties suggest a mechanism for the selective recruitment of eosinophils". J. ... It is also known to be an entry co-receptor for HIV-1. This gene and seven other chemokine receptor genes form a chemokine ... a novel CC chemokine that is selective for the chemokine receptor CCR3, and acts like eotaxin on human eosinophil and basophil ...
... host-derived pro-inflammatory chemokines (e.g. CXCL8, CCL2, CCL3, CCL4, CCL5, CCL11, CXCL10), platelet-activating factor, and ... caused an increase in the recruitment of neutrophils to the peritoneum in mice undergoing experimental peritonitis; these ... stimulates their expression the chemokine receptor, CCR5, to inhibit chemokine signaling, enhances their phagocyte activity, ... CMKLR1 (chemokine receptor-like 1), also termed the ChemR23 or E series resolvin receptor (ERV), is expressed on inflammation- ...
This inflammatory reaction in endothelial cells promotes recruitment of leukocytes to lesions and may potentially promote ... as well as chemokine and cytokine production, and expression of adhesion molecules such as E-selectin, ICAM-1, and VCAM-1. ...
Elevated serum levels of macrophage-derived chemokine and thymus and activation-regulated chemokine in autistic children, J ... The role of CCL21 in recruitment of T-precursor cells to fetal thymi. Lühikokkuvõte, Blood. 1. jaanuar 2005 ;105(1):31-9. 2005 ... CCL11, CCL17, CCl19, CCL21, CCL22, CC25, CXCL7, CXCL9, CXCL10, CXCL11, CXCL12, CXCL16. ... Kabelitz D, Wesch D., Features and functions of gamma delta T lymphocytes: focus on chemokines and their receptors. ...
... and it may regulate the migration and recruitment of dendritic and T cells during inflammatory and immunological responses. ... chemokine receptor activity. • receptor activity. • protein binding. • C-C chemokine receptor activity. • C-C chemokine binding ... Chemokine receptor 6 also known as CCR6 is a CC chemokine receptor protein which in humans is encoded by the CCR6 gene. CCR6 ... "Entrez Gene: CCR6 chemokine (C-C motif) receptor 6".. *^ Wang K, Zhang H, Kugathasan S, Annese V, Bradfield JP, Russell RK, ...
CCL11, CCL24, CCL26, CCL5, CCL7, CCL13, and CCL3. Chemokines CCL11 (eotaxin) and CCL5 (RANTES) acts through a specific receptor ... T-lymphocytes: the four key chemokines that are involved in the recruitment of T lymphocytes to the site of inflammation are: ... C chemokinesEdit. The third group of chemokines is known as the C chemokines (or γ chemokines), and is unlike all other ... C4-CC chemokines), but a small number of CC chemokines possess six cysteines (C6-CC chemokines). C6-CC chemokines include CCL1 ...
PeproTechs chemokines include proteins that act through G protein-coupled receptors and conform to the prototypical chemokine ... Chemokines possess high levels of specificity; a trait that enables the recruitment of diverse populations of well-defined ... Chemokine Subfamilies and Nomenclature. C Chemokines - Contain only two conserved cysteine residues linked by a single ... Chemokines and their receptors otherwise tend to interact indiscriminately to stimulate upregulation of adherent chemokines, co ...
CCL11, CCL24, CCL26, CCL5, CCL7, CCL13, and CCL3. Chemokines CCL11 (eotaxin) and CCL5 (RANTES) acts through a specific receptor ... T-lymphocytes: the four key chemokines that are involved in the recruitment of T lymphocytes to the site of inflammation are: ... C chemokinesEdit. The third group of chemokines is known as the C chemokines (or γ chemokines), and is unlike all other ... C4-CC chemokines), but a small number of CC chemokines possess six cysteines (C6-CC chemokines). C6-CC chemokines include CCL1 ...
CCL11, CCL12, and CCL22 was effective in inhibiting cellular recruitment (34). In this study, the chemokines were found to act ... chemokines often bind more than one chemokine receptor, and chemokine receptors typically bind more than one class of chemokine ... To detect these chemokines or chemokine receptors, Western blotting was performed using rabbit anti-murine chemokine Abs ( ... and the Abs to the three chemokines that decreased neutrophil recruitment failed to decrease macrophage recruitment. These ...
CCL11, and CCL24. These chemokines then amplify allergic inflammation by increasing the recruitment of Th2 cells and initiating ... 8⇓B). CCL11 levels were not different between the two groups, consistent with a non-CD11b+ cellular source for this chemokine. ... These chemokines then help orchestrate the amplification of Th2 cell recruitment. Our studies illuminate a novel link between ... F, Lung chemokine RNA copies normalized to copies of GAPDH RNA, and G, BAL chemokine protein levels in wild-type, STAT6−/−, and ...
Maximal recruitment was determined to be 18 h postinjection of wild-type chemokine for a 10-μg dose, because the number of ... On the other hand, certain chemokines, such as MCP-3/CCL7, eotaxin/CCL11, and I-309/CCL-1, appear to be naturally occurring ... c) Intraperitoneal recruitment elicited by the mutants (filled circles) in comparison to wild-type chemokines (open circles). ... b) Three naturally occurring monomeric chemokines, I-309, MCP-3, and eotaxin, are active in the recruitment assay (10-μg dose ...
Together, these data suggest that eotaxin initiates allergic airway disease due to A. fumigatus, but this chemokine did not ... recruitment were significantly decreased at 24 h after the soluble allergen in A. fumigatus-sensitized Eo-/- mice compared with ... The present study addresses the role of eotaxin/CCL11 during acute and chronic allergic airway responses to the fungus ... Eotaxin/CCL11 is a major chemoattractant for eosinophils and Th2 cells. As such, it represents an attractive target in the ...
Eotaxin is a CC chemokine that signals through the CCR3 receptor. It is produced by IFN-γ-stimulated endothelial cells and TNF- ... Negative regulation of eosinophil recruitment to the lung by the chemokine monokine induced by IFN-gamma (Mig, CXCL9).. ... Structure and function of A41, a vaccinia virus chemokine binding protein.. PLoS Pathogens; 4(1):e5.. 1 Jan 2008. 18208323. ... Eotaxin is a CC chemokine that signals through the CCR3 receptor. It is produced by IFN-γ-stimulated endothelial cells and TNF- ...
Mechanistically, IL-17 down modulated eosinophil-chemokine eotaxin (CCL11) and thymus- and activation-regulated chemokine/CCL17 ... and neutrophil chemokine KC production. This demonstrates that augmented neutrophil recruitment in IL-4Rα KO mice is partially ... IL-17 inhibits pulmonary CC-chemokine expression in vivo. CC-chemokines, eotaxin, Rantes, and TARC, contribute to allergic ... eosinophil-attracting chemokine eotaxin, and IL-5, which related to reduced lymphocyte and eosinophil recruitment. Inhibition ...
Whereas most cytokines have pleiotropic effects, chemokine recruitment of immune cells can be highly selective for specific ... For example, CXCL8 (IL-8), CCL2 (monocyte chemoattractant protein 1 [MCP-1]), and CCL11 (eotaxin) are major chemoattractant ... Chemokines.The largest family of cytokines is the chemokines, with 44 members (and increasing) that bind to one or more of 21 G ... The release of proinflammatory chemokines results in the recruitment of immune system cells (neutrophils, monocytes/macrophages ...
There are three family members of CC chemokines: CCL11 (Eotaxin-1); CCL24 (Eotaxin-2); CCL26 (Eotaxin-3). The chemokine CCL11 ... Eotaxin plays a role in the coordination of recruitment of inflammatory cells, in particular eosinophils, to sites of allergic ... β-chemokine) composed of 74 amino acids (molecular weight 8.4 kDa), and is one of a subfamily of eosinophil chemotactic ... There are three family members of CC chemokines: CCL11 (Eotaxin-1); CCL24 (Eotaxin-2); CCL26 (Eotaxin-3). The chemokine CCL11 ...
In addition to classic Th2 cytokine, IL6 and several chemokine transcripts measured (Ccl17, Ccl3, Ccl2, Ccl11, and Ccl8) were ... T cell recruitment into airways (Figure 5G). Transcripts of the CCR1+/CCR5+ macrophage-attracting chemokine Ccl3 were also ... Ccl11/Eotaxin1, Ccl17/Tarc, Ccl24/Eotaxin2). Gene expression of all chemokines tested except Ccl24 was significantly ... Nevertheless, given their respective role in CCR4+ T cell and CCR1+/CCR5+ macrophage recruitment to the airways, a reduction in ...
CCL11, a chemokine largely neglected in the field of malaria, emerges as an important marker of exposure or mediator in this ... CCL11 was the only biomarker to show a negative association with P. vivax infection and its concentration at recruitment was ... Samples were collected at recruitment (first antenatal visit) and at delivery (periphery, cord and placenta). At recruitment, ... We measured the plasma concentrations of a set of thirty-one biomarkers, comprising cytokines, chemokines and growth factors, ...
... and enhanced production of the chemokine CCL11, thereby negatively regulating dendritic-cell maturation. Elevated serum and ... In a BRAF(V600E/PTEN(-/-)) allograft model, IKKβ loss in macrophages reduced recruitment of myeloid cells into the tumor, ... Myeloid IKKβ Promotes Antitumor Immunity by Modulating CCL11 and the Innate Immune Response Cancer Research. Dec, 2014 , Pubmed ... tissue levels of CCL11 mediated suppression of dendritic-cell differentiation/maturation within the tumor microenvironment, ...
We here established a congenic rat strain with Eae18b locus containing a chemokine cluster (Ccl2, Ccl7, Ccl11, Ccl12 and Ccl1) ... Role of Tumor Pericytes in the Recruitment of Myeloid-Derived Suppressor Cells Journal of the National Cancer Institute. Oct, ... In the lymph nodes, macrophages were the main producers of CCL11, whereas macrophages and lymphocytes expressed the main CCL11 ... Expression of Ccl11 Associates with Immune Response Modulation and Protection Against Neuroinflammation in Rats PloS One. 2012 ...
3 Quantification of immune cell-recruiting chemokines in the BALF.. The levels of (A) CCL11, (B) CXCL1, (C) CCL5, and (D) CCL17 ... CCL11) (i.e., eotaxin-1), C-X-C motif ligand 1 (CXCL1), and CCL5, which drive the recruitment of eosinophils, neutrophils, and ... The C-C motif chemokine ligands CCL5, CCL11, and CCL24 induce the migration of circulating fibrocytes from patients with severe ... normalization of the CCL11 level by the therapy likely contributed to blockade of eosinophil recruitment, given that the ...
Neutralization of IL-5 did not affect the development of the cytokine/chemokine response driving recruitment of eosinophils. ... In addition, TDI inhalation upregulated Th2 cytokine (IL-4, -5, -13, -10) and chemokine (Ccl11, Ccl24) expression and ...
... some CC chemokines are also targets of IL-17, including CCL2/MCP-1 [76, 93, 94], CCL11/eotaxin  and CCL20 . ICAM-1, ... Neutrophil recruitment by human IL-17 via C-X-C chemokine release in the airways. J. Immunol. 1999;162:2347-2352. [PubMed] ... In addition to IL-6, a major group of IL-17 target genes are chemokines, particularly neutrophil-attracting CXC chemokines ( ... Kao C-Y, Huang F, Chen Y, Thai P, Wachi S, Kim C, Tam L, Wu R. Up-regulation of CC chemokine ligand 20 expression in human ...
CAFs secrete chemokines that control critical steps of the adhesion-invasion-metastasis cascade and affect recruitment of ... Evidence was provided of a significant increase in proinflammatory chemokines (CCL2, CCL11, CCL8, CCL20, CXCL5, and IL-9) in ... In addition, we identified differentially expressed chemokines, such as CCL11, CCL8, CXCL5, or CCL2, IGF-related proteins such ... Expression of chemokines and chemokine receptors in human colon cancer. Methods Enzymol 2009;460:105-21. ...
Atypical Chemokine Receptor 1 (Duffy Blood Group), including: function, proteins, disorders, pathways, orthologs, and ... Acts as a receptor for chemokines including CCL2, CCL5, CCL7, CCL11, CCL13, CCL14, CCL17, CXCL5, CXCL6, IL8/CXCL8, CXCL11, GRO ... May regulate chemokine bioavailability and, consequently, leukocyte recruitment through two distinct mechanisms: when expressed ... Atypical chemokine receptor that controls chemokine levels and localization via high-affinity chemokine binding that is ...
CCL11, CCL4, CCL8 and CXCL3) were also more up-regulated on day 7. In general, the up-regulated chemokines perform pleiotropic ... recruitment of neutrophils was split into its function, recruitment, and the cell-type, neutrophil). Further, functions ... Three chemokines and one chemokine receptor which were up-regulated in the CA04 infection on day 3 as well are demarcated by ... In this network, only four genes (all chemokines) were up-regulated on day 3 p.i. (demarcated by red stars) and their primary ...
Recruitment of Foxp3+ T regulatory cells mediating allograft tolerance depends on the CCR4 chemokine receptor. J Exp Med. 2005 ... CCL11, CXCL10, CCR1, CCR2, and CCR5). Importantly, deletion of CCR1 on murine leukocytes had minimal effects on T-cell ... CXC Chemokine/CXC Chemokine Receptor. CXC chemokines are divided based on the presence or absence of the sequence glutamic acid ... Chemokine/Chemokine Receptors. Chemokines are a group of low-molecular-weight (8- to 11-kDa) cytokines that mediate cellular ...
CCL11) recruits and activates eosinophils. Other chemokines including CCL20, CXCL9, and CXCL10 appear to be involved in skin ... including cell recruitment with cytokine and chemokine production, are responsible for the pathophysiology of anaphylaxis. ... 3.2.2, recruitment of the Syk kinase and subsequent phosphorylation activation steps involving Lyn lead to mast cell activation ... The released chemokines and cytokines increase the permeability of blood vessels leading to local swelling and induce the ...
Chemokine levels were quantified in mouse brain extract. Migration and proliferation assays were performed using embryonic and ... Our data implicate an important effect of CCL11 for mouse NPCs. The effective activation of NPCs may offer a promising strategy ... We examined the role of chemokines in mediating NPC migration after neonatal hypoxic-ischemic brain injury. Nine-day-old mice ... NPCs migrated toward an injured area, where a marked increase of CC chemokines was detected. In vitro studies showed that ...
Inducible expression of a CC chemokine liver- and activation-regulated chemokine (LARC)/macrophage inflammatory protein (MIP)-3 ... 5 A). In contrast, both CCR2 and CCR6 were critical for the recruitment of circulating LC precursors, as described previously ( ... and ITAC/CCL11 (ligands for CXCR3; references 36 and 37); and MIP-3α/CCL20 (the ligand for CCR6; references 38 and 39). In ... Numerous chemokines are secreted in inflamed skin, including RANTES (a ligand for CCR1 and CCR5; reference 32); MCP-1/CCL2 (a ...
Plasma levels of CCL5 and CXCL11 (Th1-associated) and of CCL11 (Th2-associated) were determined by ELISA. Gene expression of ... Th1-/Th2-associated chemokine and chemokine receptor profiles in ITP patients before and after pulsed HD-DXM was studied. ... Th2-associated chemokines and chemokine receptors may play important roles in the pathogenesis of ITP. Importantly, regulating ... Our aim was to investigate the mechanism of pulsed HD-DXM for management of ITP, specifically regarding the chemokine pathways ...
Coupled receptorCCL2CCR3CCL22CCL7Examined the role of chemokinesActivation-regulated chemokineHuman chemokinesLigandsInflammatory mediatorsImmuneMediatorsTARCLeukocyteSeveral chemokinesSuperfamilyReceptors playCCL3MoleculesAllergicLevels of chemokinesCCL8SelectivelyDendriticPathogenesisSubfamiliesCXCR4MurineBindCysteine residuesRoles of chemokinesCharacteristic of chemokinesFibroblastsChromosome 17Different chemokinesTumorMediateVarious chemokinesHomeostatic chemokinesAirway
- In order to exert biological effect, chemokines will bind with receptors of the G-protein coupled receptor (GPCR) superfamily, which possess seven conserved transmembrane domains with which chemokines can interact. (peprotech.com)
- Chemotactic response of eosinophils is mostly mediated by CC Chemokine Receptor-3 ( CCR3 ), a member of G-protein-coupled receptor family, which activates G-protein alpha-i family [ 1 ]. (bio-rad.com)
- MCP-1 ( CCL2 ), MCP-3 ( CCL7 ), and eotaxin ( CCL11 ) are genes for CC chemokines clustered on the long arm of chromosome 17. (nova.edu)
- For instance, MCP-1/CCL2 - a CC chemokine that binds to CC chemokine receptor (CCR)2 - has attracted keen interest in the field of fibrosis because it appears to play direct roles in collagen and matrix metalloproteinase-1 induction on fibroblasts [ 11 - 13 ] and is present at sites undergoing fibrosis. (biomedcentral.com)
- This migratory activity was markedly inhibited by the viral CC chemokine inhibitor and the deficiency of MCP-1/CCL2, indicating that MCP-1/CCL2 is a main attractant of THP-1 cells among the SLF-derived molecules. (biomedcentral.com)
- Taken together, we suggest that NTHI-induced SLF-derived MCP-1/CCL2 is a key molecule contributing to inner ear inflammation through CCR2-mediated recruitment of monocytes. (biomedcentral.com)
- We therefore hypothesized that elevated CCL2 may contribute to obesity-associated adipose tissue macrophage recruitment. (baidu.com)
- The most thoroughly characterized CC chemokine is MCP-1 (also known as CCL2), a potent agonist for monocytes, memory T cells, and basophils. (ahajournals.org)
- Consistent with this, our pilot data indicate that allergen sensitization and challenge with ovalbumin (OVA) alters the response to HRV infection from a neutrophilic response to a Th2-dominant, combined neutrophilic and eosinophilic response that is mediated in part by macrophage production of eotaxin-1/CCL11 and MCP-1/CCL2. (grantome.com)
- Eotaxin is a CC chemokine that signals through the CCR3 receptor. (peprotech.com)
- Chemokine receptor 3 (Ccr3) plays an important role in allergic rhinitis induced by toluene diisocyanate. (cdc.gov)
- Expression of Ccr3 and its ligands, Ccl11 (eotaxin I) and Ccl24 (eotaxin II) were upregulated in the nasal mucosa following TDI inhalation. (cdc.gov)
- Administration of neutralizing anti-Ccr3 antibodies prior to TDI exposure prevented the upregulation of Ccl11 and Ccl24. (cdc.gov)
- Gene expression of these three chemokines and their corresponding receptors CCR5, CXCR3, and CCR3, in peripheral blood mononuclear cells (PBMCs) was determined by quantitative RT-PCR. (biomedcentral.com)
- In our studies examining the role of chemokines in angiogenesis, we discovered that CCR3 (also known as CD193), a chemokine receptor best known for its role in promoting eosinophil and mast cell trafficking 8 , was expressed in human choroidal endothelial cells (CECs) only in the context of CNV due to AMD and not in other non-proliferating or proliferating choroidal vasculature ( Fig. 1 ). (pubmedcentralcanada.ca)
- Eotaxin binds and activates the CCR3 chemokine receptor, and may play a fundamental role in the development of allergic responses. (thermofisher.com)
- CCR3 recruitment by eotaxins leads to activation of mitogen-activated protein kinases, ERK2 and p38MAPK [ 1 ]. (bio-rad.com)
- However, it has been found that eotaxin-1 (CCL11) has high degree selectivity for its receptor, such that they are inactive on neutrophils and monocytes, which do not express CCR3. (wikipedia.org)
- However, it has been found that eotaxin-1 (CCL11) has high degree selectivity for its receptor, such that they are inactive on neutrophils and monocytes , which do not express CCR3. (wikidoc.org)
- During periods of bone inflammation, CCL11 and CCR3 are upregulated. (wikidoc.org)
- Mouse Eotaxin activity is mediated by the mouse CC chemokine receptor CCR3, which, unlike human CCR3, can also be activated by mouse MIP-1α. (biovendor.com)
- In this study, we demonstrate that STAT6 in bone marrow-derived myeloid cells was sufficient for the production of CCL17, CCL22, CCL11, and CCL24 and for Th2 lymphocyte and eosinophil recruitment into the allergic airway. (jimmunol.org)
- Selective depletion of CD11b + myeloid cells in the lung identified these cells as the critical cellular source for the chemokines CCL17 and CCL22. (jimmunol.org)
- It has been shown that interactions between CCR4 and MDC/CCL22 and TARC/CCL17, as well as between CCR8 and I-309/CCL1, are critical for the recruitment of Th2 cells in the airway mucosa of allergic diseases in response to allergen stimulation. (nii.ac.jp)
- We found a similar pattern for the CAF-associated chemokines CCL17, CCL18, CCL22, CCL25, CXCL12 and IL6 with high expression in BCC and peritumoural skin but absence in buttock skin. (biomedcentral.com)
- IL-4 induced M2 macrophages expressed high concentration of IL-10, decoy receptor IL-1R, IL-1R antagonist, chemokines CCL22 and CCL17 , and intracellular enzyme arginase-1. (thefreedictionary.com)
- CCL17 and CCL22 chemokines within tumor microenvironment are related to accumulation of Foxp3+ regulatory T cells in gastric cancer. (thefreedictionary.com)
- However, additional studies involving stimulation of human epidermal keritonocyte cell lines with human IL-31 induced the expression of several proallergic chemokines, including TARC/ CCL17 (thymus- and activation-regulated chemokine) and MDC (macrophage-derived chemokine)/CCL22 that are important to the recruitment of inflammatory cells to the skin (Dillon et al. (thefreedictionary.com)
- The 0.8 ppm O 3 up-regulated lung mRNA of CXCL1,2,3 (mouse growth-related oncogene-α and macrophage-inflammatory protein-2), CXCL10 (IFN-γ-inducible protein-10), CCL3 (macrophage-inflammatory protein-1α), CCL7 (monocyte chemoattractant protein-3), and CCL11 (eotaxin) at 0 h postexposure, and expression of CXCL10, CCL3, and CCL7 mRNA was sustained 18 h postexposure. (jimmunol.org)
- Surprisingly, Abs to CCL7 and CXCL10 also decreased neutrophil recruitment by 63 and 72%, respectively. (jimmunol.org)
- Moreover, qualitative differences between the arrestin responses to the different ligands were identified in the stability of the response: although CCL7-induced arrestin recruitment had a half-life of less than 15 min, CCL8 and CCL13 induced stable CCR2-arrestin interactions. (aspetjournals.org)
- Mechanistically, IL-17 down modulated eosinophil-chemokine eotaxin (CCL11) and thymus- and activation-regulated chemokine/CCL17 (TARC) in lungs in vivo and ex vivo upon antigen restimulation. (rupress.org)
- Th2 cells are recruited along concentration gradients of the thymus- and activation-regulated chemokine/CCL17 (TARC) ( 2 ) and produce the proallergic cytokines IL-4, IL-5, and IL-13. (rupress.org)
- To date 53 human chemokines and 23 receptors have been cloned and characterized. (hindawi.com)
- Thus, extensive studies on human chemokines and their effect on the cellular immune response will be a big boost toward the development of effective drugs. (atlasofscience.org)
- 5,6 There are ≈50 human chemokines, which are divided into three major families based on differences in their structure and function. (ahajournals.org)
- Classified into subfamilies based on the motifs of their ligands, these receptors tend to interact with the chemokines of their eponymous subfamilies. (peprotech.com)
- The chemokine receptor CCR2, which has been implicated in a variety of inflammatory, autoimmune, and cardiovascular conditions, binds several natural chemokine ligands. (aspetjournals.org)
- Here, we assessed the recruitment of β-arrestin to CCR2 in response to these ligands using bioluminescence resonance energy transfer technology. (aspetjournals.org)
- Although the potency and efficacy rank orders of the ligands in arrestin recruitment were similar to those observed for Gα i1 activation, arrestin recruitment was at least in part resistant to Gα i/o -inactivating pertussis toxin, suggesting partial independence from Gα i/o . (aspetjournals.org)
- However, the description of the nonredundant pharmacology of ligands to a given receptor in defined in vitro systems and in the absence of most of the confounding in vivo mechanisms is of prime interest for drug development, which has indeed been hampered by the complexity of the chemokine system. (aspetjournals.org)
- Surprisingly, β-arrestin recruitment to CCR2 by its ligands has so far received little attention. (aspetjournals.org)
- At least three of these mesenchymal ligands, ANGPT1, CCL11, and VEGFC, promote growth when locally applied on sympathetic axons. (eneuro.org)
- The invasion of such matter generates an onslaught of inflammatory responses, recruiting several immune cells and proteins, including a special class of small cytokines called chemokines. (peprotech.com)
- Critical to maintaining hemostasis through hematopoietic differentiation and immune surveillance, chemokines also help orchestrate both innate and adaptive immune responses. (peprotech.com)
- Chemokine-triggered immune responses often require co-stimulation by primary proinflammatory cytokines, such as IL-1α, IFN-γ and TNF-α. (peprotech.com)
- Some chemokines are considered pro- inflammatory and can be induced during an immune response to recruit cells of the immune system to a site of infection , while others are considered homeostatic and are involved in controlling the migration of cells during normal processes of tissue maintenance or development . (wikipedia.org)
- Some chemokines control cells of the immune system during processes of immune surveillance, such as directing lymphocytes to the lymph nodes so they can screen for invasion of pathogens by interacting with antigen-presenting cells residing in these tissues. (wikipedia.org)
- Certain inflammatory chemokines activate cells to initiate an immune response or promote wound healing . (wikipedia.org)
- These data reveal that CD11b + myeloid cells in the lung help orchestrate the adaptive immune response in asthma, in part, through the production of STAT6-inducible chemokines and the recruitment of Th2 lymphocytes into the airway. (jimmunol.org)
- However, expression of chemokines and chemokine receptors associated with the Th1/Th2 imbalance, particularly relating to immune regulation by modified application of glucocorticoids, has yet to be explored. (biomedcentral.com)
- This tract will discuss the contribution of chemokines to the development of innate and adaptive granuloma formation, as well as describe their relationship to more recently evolved cytokines generated during adaptive immune responses. (frontiersin.org)
- Since these chemokines do not bind the primary HIV-1 coreceptors CCR5 or CXCR4, the observed influence on transmission may result from activation of the immune system in response to infection rather than receptor blockage. (nova.edu)
- IECs form a strong sensing device that responds to the external stimuli by secreting specific messenger molecules called as cytokines and chemokines which play a major role in shaping the local immune system and maintaining gut in a healthy state. (atlasofscience.org)
- Chemokines secreted by IECs mediate the infiltration of various immune cells into the gut. (atlasofscience.org)
- The figure depicts the expression of different chemokine-chemokine receptors on IECs and how they play a central role in coordinating the interplay between IECs and gut immune cells to maintain homeostasis. (atlasofscience.org)
- Their migration is guided by a unique receptor present on cell surface known as chemokine receptor which senses the gradient chemokine molecules and drives the migration of various immune cells from peripheral tissues to the GALT (Fig. 1). (atlasofscience.org)
- Because chemokines not only recruit immune cells but also affect their functions, thus while designing the chemokine targeted drugs we need to consider their effect on the gut immune system. (atlasofscience.org)
- Now, an international team of researchers led by Professor Christian Weber of Ludwig-Maximilians-University (LMU) Munich and Privatdozentin Alma Zernecke of WE-rzburg University has demonstrated that dendritic cells release the chemokine CCL17 as a signal molecule, which inhibits a feedback mechanism that normally limits the activity of the immune system. (thefreedictionary.com)
- By scavenging chemokines in tissues, on the surfaces of lymphatic vessels, and in placenta, plays an essential role in the resolution (termination) of the inflammatory response and in the regulation of adaptive immune responses. (avivasysbio.com)
- Previous studies show chemokine-mediated recruitment of immune cells in the retina, and therefore we investigated systemic levels of chemokines and chemokine receptors in patients with GA. Methods: This observational prospective study was conducted at a single center. (bvsalud.org)
- While a function of chemokines is to regulate lymphocyte trafficking, the view that chemokines act simply as "chemotactic cytokines" has evolved to include the many critical roles they play in regulating innate and adaptive immune responses. (mdpi.com)
- On one hand, the chemokine network is used by tumors to evade immune surveillance, resist apoptosis, and metastasize. (mdpi.com)
- On the other hand, the chemokine system also plays a crucial role in the induction of antitumor immune responses and optimal effector function regulation of immune cells [ 1 , 4 , 5 ]. (mdpi.com)
- Circulating CD14 + MPs were exposed to bacterial lipopolysaccharide (LPS) followed by exposure to an array of cytokines, chemokines and soluble factors involved in the immune response. (biomedcentral.com)
- RANTES, along with the related chemokines MIP-1alpha and MIP-1beta, has been identified as a natural HIV-suppressive factor secreted by activated CD8+ T cells and other immune cells. (invivosaglik.com)
- Chemokines are soluble mediators that were originally identified because of their chemotactic properties in cells expressing specific receptors. (biomedcentral.com)
- In theory, chemokine production by HRV-infected epithelial cells induces the recruitment of inflammatory cells to the airways, which in turn elaborate cytokines and mediators capable of increasing airway responses. (grantome.com)
- We show in vitro for the first time that IL-17 inhibits chemokine TARC production by DCs, which play a key role in the Th2 response and therefore in allergic asthma ( 37 ). (rupress.org)
- Mucosal IL-17 administration inhibited asthma by reducing the pulmonary production of IL-5 and the chemokines TARC and eotaxin, which control eosinophil recruitment and asthma. (rupress.org)
- To gain a better understanding of the role of TARC in the pathogenesis of allergic rhinitis, we have investigated the cellular sources of this chemokine in nasal mucosa. (nii.ac.jp)
- Expression of C-C chemokine TARC in human nasal mucosa and its regulation by cytokines'Clin Exp Allergy. (nii.ac.jp)
- The protein encoded by this gene is a glycosylated membrane protein and a non-specific receptor for several chemokines. (genecards.org)
- Intestinal epithelial cells (IECs) express several chemokines and chemokine receptors. (atlasofscience.org)
- Moreover, IECs themselves express several chemokines receptors which regulate the differentiation, migration, and death of epithelial cells. (atlasofscience.org)
- These events are mediated via the generation of adhesion molecules, cytokines, and chemokines. (ahajournals.org)
- Structurally, chemokines are classified into four groups (C, CC, CXC, and CX3C) according to the number and location of the conserved cysteine residues in the primary structure of these molecules (Figure 1 ). (hindawi.com)
- Chemokines are a large family of small structurally related protein molecules with well-established roles in directional recruitment and migration of cells. (atlasofscience.org)
- We performed a systematic, comprehensive time-course analysis of the expression and function of a broad variety of cytokines, growth factors, adhesion molecules, matrixmetalloproteinases and chemokines in a murine cutaneous wound healing model. (biomedcentral.com)
- We systematically measured cytokines, growth factors, adhesion molecules, matrixmetalloproteinases and chemokines in a murine model for acute cutaneous wound healing. (biomedcentral.com)
- Eotaxin/CCL11 is involved in acute, but not chronic, allergic airway responses to Aspergillus fumigatus. (semanticscholar.org)
- The present study addresses the role of eotaxin/CCL11 during acute and chronic allergic airway responses to the fungus Aspergillus fumigatus. (semanticscholar.org)
- Although it is essential during antigen sensitization to establish allergic asthma, in sensitized mice IL-17 attenuates the allergic response by inhibiting DCs and chemokine synthesis. (rupress.org)
- Eotaxin is a 74-amino acid, eosinophil-chemotactic CC chemokine originally found in bronchoalveolar lavage fluid from allergic inflammatory subjects. (thermofisher.com)
- The abnormal profiles of Th1-/Th2-associated chemokines and chemokine receptors may play important roles in the pathogenesis of ITP. (biomedcentral.com)
- The key role of chemokines and chemokine receptors in the pathogenesis of gut-associated diseases makes them a potent drug target. (atlasofscience.org)
- Classified into subfamilies by the structural conservation of both cysteine residues and disulfide bonds, chemokine nomenclature reflects several cysteine-grouping motifs and arrangements. (peprotech.com)
- Chemokines have been classified into four main subfamilies: CXC, CC, CX3C and XC. (wikipedia.org)
- Has a promiscuous chemokine-binding profile, interacting with inflammatory chemokines of both the CXC and the CC subfamilies but not with homeostatic chemokines. (genecards.org)
- Chemokines are divided into subfamilies by structural and functional criteria. (hindawi.com)
- Chemokine subfamilies classification. (hindawi.com)
- In particular the imbalanced or aberrant expression of CXCL12 and its receptor CXCR4 strongly affects cancer cell proliferation, recruitment of immunosuppressive cells, neovascularization, and metastasization. (hindawi.com)
- The EBV-encoded BILF1 receptor presents limited homology to chemokine receptors, with highest homology to CXCR4. (aspetjournals.org)
- The role of up-regulated chemokines was determined by administering control IgG or IgG Abs against six murine chemokines before O 3 exposure. (jimmunol.org)
- Recombinant Murine Eotaxin is an 8.4 kDa protein containing 74 amino acid residues, including the four highly conserved cysteine residues present in CC chemokines. (peprotech.com)
- This review will focus on recent murine and human studies that use chemokines as therapeutic anti-cancer vaccine adjuvants. (mdpi.com)
- Many chemokines bind several receptors and multiple chemokines often bind the same receptor, resulting in a highly complex network of interactions ( 3 ). (pnas.org)
- thus, it is not surprising that chemokines are also able to bind linear sulfated GAGs such as heparin and heparan sulfate. (pnas.org)
- Additional immunevasins are secreted from infected cells to bind complement factors, IFNs, cytokines or chemokines extracellularly and inhibit their activity. (prolekare.cz)
- Chemokines display high structural homology and overlapping functions and often bind more than one receptor. (hindawi.com)
- Human "CC" chemokines (structurally characterized by four cysteines) includes 28 members, called CCL1-28 that bind at least 10 receptors (CCR1-10). (hindawi.com)
- C Chemokines - Contain only two conserved cysteine residues linked by a single disulfide bond. (peprotech.com)
- CC Chemokines - Contain four conserved cysteine residues of which the first two, closest to the N-terminal, are adjacent to one another. (peprotech.com)
- CXC Chemokines - Contain four conserved cysteine residues of which the first two, closest to the N-terminal, are separated by a single amino acid. (peprotech.com)
- Chemokines have been traditionally divided into four families (CXC, CC, C, and CX3C) based on the patterns of amino-terminal cysteine residues. (pnas.org)
- The largest family is known as the CC chemokines because the first two of the four conserved cysteine residues that are characteristic of chemokines are adjacent to each other. (ahajournals.org)
- Based on our findings that IL-17 conveys dual effects (stimulation of proinflammatory cytokines and down-regulation of chemokines) in fibroblasts with the inhibitory IL-17 effect prevailing at low concentrations ( 36 ), we hypothesized a regulatory role of IL-17 in vivo and investigated the potential of IL-17 for regulating the Th2 response to inhaled allergens. (rupress.org)
- Our aim was to explore the capacity of dermal fibroblasts to produce inflammatory chemokines potentially involved in fibrosis occurring in response to contact with polarized human T cells. (biomedcentral.com)
- Our findings indicate that the program of chemokine production by fibroblasts is differentially regulated depending on the T-helper (Th) cell subset used to activate them. (biomedcentral.com)
- Finally, no distinct differences in chemokine production were observed when the responses to T cell contact or to prototypic Th1 and Th2 cytokines were examined in systemic sclerosis versus normal fibroblasts. (biomedcentral.com)
- These findings indicate that fibroblasts have the potential to participate in shaping the inflammatory response through the activation of flexible programs of chemokine production that depend on the Th subset eliciting their response. (biomedcentral.com)
- Accordingly, we demonstrate that structural cells, such as human keratinocytes, dermal fibroblasts and dermal microvascular endothelial cells, express a distinct and functionally active repertoire of chemokine receptors. (biomedcentral.com)
- At first, different chemokines binding the same receptor were referred to as functionally redundant, although differences between their effects in vivo were recognized early on. (aspetjournals.org)
- Knowledge about intrinsically different effects of different chemokines on the same receptor should help to better direct drug developing efforts targeting chemokine receptors. (aspetjournals.org)
- A multiplex immunoassay was used to determine levels of 15 different chemokines and IL-6 in subretinal fluid samples obtained during scleral buckling surgery for primary RRD. (arvojournals.org)
- Serum levels of CCL11, tumor necrosis factor-α (TNF-α), interleukin-17, and Dickkopf-1 (DKK-1) were measured with commercially available enzyme-linked immunosorbent assay kits. (springer.com)
- MVs which selective incorporate chemokines as their molecular cargos may play important regulatory roles in oncogenic processes including tumor proliferation, apoptosis, angiogenesis, metastasis, chemoresistance and immunomodulation, et al. (biomedcentral.com)
- Therefore, it is important to explore the association of MVs and chemokines in TME, identify the potential prognostic marker of tumor, and develop more effective treatment strategies. (biomedcentral.com)
- In cancer, chemokines and their receptors are important regulators for cell trafficking in and out of the tumor microenvironment (TME) [ 14 ]. (biomedcentral.com)
- In contrast, STAT6 in airway-lining cells did not mediate chemokine production or support cellular recruitment. (jimmunol.org)
- In addition to IL-17, Th17 cells produce IL-17F, IL-22, IL-26, TNFα and various chemokines [ 25 - 27 ], which act in concert to mediate the pro-inflammatory effects of this population. (pubmedcentralcanada.ca)
- There has been a great deal of work published on the induction of various chemokines and cytokines using in vitro culture systems. (asm.org)
- There have been numerous in vitro studies showing that chlamydiae can elicit various chemokines and cytokines from tissue culture cells (reviewed in reference 19 ). (asm.org)
- Various chemokines and IL-6 are upregulated in patients in whom fibrotic membranes develop after primary RRD repair and may therefore be involved in the future development of postoperative PVR. (arvojournals.org)
- Oxidative stress from ozone (O 3 ) exposure augments airway neutrophil recruitment and chemokine production. (jimmunol.org)
- Thymic stromal lymphopoietin receptor-mediated IL-6 and CC /CXC chemokines expression in human airway smooth muscle cells: role of MAPKs (ERK1/2, p38, and JNK) and STAT3 pathways. (baidu.com)
- Clinical Implication: The suppressive effect of (R)-albuterol on neural ICAM-1 expression may be an additional mechanism for decreasing bronchoconstriction, since it would decrease eosinophil recruitment to the airway nerves. (elsevier.com)