T-cell antigen

См. также в других словарях:

• T cell antigen receptor — (TCR) the characteristic marker of T lymphocytes, consisting of two polypeptide chains linked by a disulfide bridge. Two forms exist: TCR 1, composed of α and β chains and occurring on helper and cytotoxic T cells, and the much less… …   Medical dictionary

• senescent cell antigen — An antigen (62 kD) that appears on the surface of senescent erythrocytes and is immunologically cross reactive with isolated band III. Seems to be recognized by an autoantibody, and the immunoglobulin coated erythrocyte is then removed from… …   Dictionary of molecular biology

• Antigen processing — is a biological process that prepares antigens for presentation to special cells of the immune system called T lymphocytes. This process involves two distinct pathways for processing of antigens from an organism s own (self) proteins or… …   Wikipedia

• T-cell antigen receptor — (TCR) The receptor on the T cell surface consisting of two antigen binding peptide chains; it is associated with a large number of other glycoproteins. Binding of antigen to the TCR, usually in association with MHC, activates the T cell …   Dictionary of microbiology

• B cell antigen receptors — monomeric IgM, IgD, and (on memory cells only) IgG that is attached to the cell membrane of B lymphocytes and which, in conjunction with T cell help, triggers B cell activation on contact with antigen …   Medical dictionary

• B-cell antigen receptor — (BCR) A transmembrane immunoglobulin complex on the surface of a B cell that binds an antigen and stimulates the B cell. It is composed of a membrane bound immunoglobulin, usually IgD or a modified IgM, complexed with another membrane protein… …   Dictionary of microbiology

• pan–T-cell antigen — an antigen present on several different types of T cells …   Medical dictionary

• Antigen presentation — is a process in the body s immune system by which macrophages, dendritic cells and other cell types capture antigens and then enable their recognition by T cells. NOTOC The basis of adaptive immunity lies in the capacity of immune cells to… …   Wikipedia

• Cell-mediated immunity — is an immune response that does not involve antibodies or complement but rather involves the activation of macrophages, natural killer cells (NK), antigen specific cytotoxic T lymphocytes, and the release of various cytokines in response to an… …   Wikipedia

• antigen-presenting cell — n any of various cells (as a macrophage or a B cell) that take up and process an antigen into a form that when displayed at the cell surface in combination with a molecule of the major histocompatibility complex is recognized by and serves to… …   Medical dictionary

• Cell adhesion molecule — Cell Adhesion Molecules (CAMs) are proteins located on the cell surface[1] involved with the binding with other cells or with the extracellular matrix (ECM) in the process called cell adhesion. These proteins are typically transmembrane receptors …   Wikipedia