A type of white blood cell that attacks virus-infected cells, foreign cells and cancer cells.
Thymus derived lymphocytes or thymocytes. Comprise Thl and Th2 lymphocytes and natural killer (NK) cells. Thl lymphocytes are important in cell-mediated immunity and IL-2 and IFN-y production. Th2 lymphocytes are associated with the promotion of antibody-mediated immunity and production of cytokines IL-4, IL-6, IL-10 and IL-13.
Lymphocytes that are responsible for cell-mediated responses of the adaptive immune system. There are two classes of T cells: cytotoxic T cells (CD8), which destroy virus- infected and cancer cells directly via cell lysis; and helper T cells (CD4 cells), regulatory cells that influence the activity of cytotoxic T cells, B cells, NK, and macrophages; both may-slow or stop the T and C cells once the infection is controlled.
A class of (thymus-derived) lymphocytes which include helper T cells (also known as T helper cells or Th cells), suppressor T cells, and cytotoxic T cells (also known as killer cells or CTL for cytotoxic T lymphocyte). These cells mediate (i.e., control/direct) the cellular response of the human immune system in very complex ways. T cells are involved in the activation of B cells.
A specialized lymphocyte that, upon exposure to an antigen, releases chemicals that have localized effects that, collectively, are called cell-mediated immunity T lymphocyte.
Cells of the immune system that originated from the thymus gland. These cells recognize antigens and produce antibodies to them.
Thymus-derived lymphocytes that recognize and kill cancerous cells and cells infected with viruses or identified as foreign tissue.
A lymphocyte (white blood cell) that develops in the bone marrow, matures in the thymus, and works as part of the immune system in the body.
Thymus‐dependent lymphocytes that are spherical cells of the lymphoid series and among the principal cells involved in the cell‐mediated immune response.
Small circulating lymphocyte that matures in the thymus and is the chief agent of cell-mediated immunity, involved particularly in transplant rejection and delayed hypersensitivity reactions. Special T cells, called helper T cells and suppressor T cells, affect the production of B cells, the chief agents of the humoral (antibody-mediated) immune response.
A white blood cell that defends the body by killing foreign cells.
A type of white blood cell that orchestrates the immune system’s response to certain types of infection and to malignant cells; also known as a T lymphocyte. Developed in the thymus, T cells act directly to fight diseases or organisms, such as bacteria; to stimulate B lymphocytes or helper T cells; and to suppress some B lymphocyte functions.
A variety of white blood cell that orchestrates the immune system’s response to infected or malignant cells; also known as a T lymphocyte. The T cell is a type of white blood cell that develops in the thymus and is part of the immune system. T cells act directly to fight diseases or organisms, such as bacteria; to stimulate B lymphocytes or helper T cells; and to suppress some B lymphocyte functions.
A type of lymphocyte that kills pathogens or produces substances that regulate the activities of other cells of the immune system.
Lymphocytic cells that develop in the thymus that are part of the adaptive immune system.