T cell

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Related to T lymphocytes: MHC, B lymphocytes, Cytotoxic T lymphocytes

T cell

n.
Any of a class of lymphocytes, including the helper T cells and cytotoxic T lymphocytes, that form in bone marrow and mature in the thymus. T cells are activated when receptors on the cell surface recognize specific antigens. Also called T lymphocyte.

[t(hymus-derived) cell.]

T cell



n.
any of several closely related lymphocytes, developed in the thymus, that circulate in the blood and lymph and regulate the immune system's response to infected or malignant cells. Also called T lymphocyte.
[1965–70; T(hymus-derived)]

T cell

Any of the lymphocytes that act to defend the body against disease by binding foreign antigens to receptors on the surface of their cells. T cells also regulate the function of B cells.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.T cell - a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells
lymph cell, lymphocyte - an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection
CD4 cell, CD4 T cell, helper cell, helper T cell - T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells; helper T cells are infected and killed by the AIDS virus
CD8 cell, CD8 T cell, cytotoxic T cell, killer cell, killer T cell - T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it
References in periodicals archive ?
The concentration of CD4 T lymphocytes, the infection-fighting white cells that decline dramatically during the course of AIDS, went from an initial average of 140 cells per cubic millimeter of blood on a slide to a healthier value of 360 cells per cubic millimeter.
BDIS is a long-time leader in the cell analysis market, and its FACSCount system is the first of its kind dedicated to obtaining absolute counts of CD4, CD8 and CD3 T lymphocytes.
These white cells of the variety known as T lymphocytes, or simply T-cells, were removed earlier and treated so that they contain good copies of the ADA gene for making the crucial enzyme that the girl lacks.
It originates from lymphocytes, a type of white blood cells, which can be divided into two main types, B lymphocytes and T lymphocytes (also called B-cells or T-cells).
Washington, January 4 ( ANI ): In a new study, researchers claim to have succeeded for the first time in creating cancer-specific, immune system cells called killer T lymphocytes, from induced pluripotent stem cells (iPS cells).
The evaluation of the proportion of polymorphonuclear leukocytes, macrophages, T lymphocytes, and B lymphocytes, as well the relative proportion of neovascularization in skin tissue specimens, was determined by quantitative image analysis (22).
At 3 days postinfection, neither DEP exposure nor Listeria infection resulted in significant changes in T lymphocytes when compared with the air-exposed, noninfected control (data not shown).
Immunohistochemistry of both tumors revealed a mixed population of CD2O-positive B lymphocytes and CD3-positive T lymphocytes.
Early in this process, white blood cells called T lymphocytes infiltrate the islets of the pancreas (an inflammatory condition known as insulitis), causing the blood vessels to become leaky.
Primary induction of human CD8+ cytotoxic T lymphocytes and interferon-gamma-producing T cells after smallpox vaccination.
Sensitization occurs when an allergen seeps below the skin surface and is processed by Langerhans cells--immune system cells that carry an allergen fragment, or antigen, to T lymphocytes in the lymph nodes.
IDDM occurs when T lymphocytes infiltrate the pancreas and destroy the insulin-producing cells.