T lymphocyte


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Related to T lymphocyte: B lymphocyte, Cytotoxic T lymphocyte

T lymphocyte

n.
See T 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)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.T lymphocyte - 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 ?
Abnormalities in CD4+ T lymphocyte subsets in patients with common variable immunodeficiency.
In addition to stimulating B lymphocytes, Th2 cells suppress the cytotoxic T lymphocyte response, decreasing the robustness of cell-mediated immunity.
When a T lymphocyte is activated by a parasite, it commits itself and becomes specific to this parasite, which will thereafter be the only activator of this sensitized lymphocyte.
Key words: allergy, asthma, dust mites, eosinophil, feed restriction; IgE, immune response, inflammation, lung, T lymphocyte, tumor necrosis factor-[Alpha].
ENV-specific cytotoxic T lymphocyte responses in HIV seronegative health care workers occupationally exposed to HIV-contaminated body fluids.
The Universite Louis Pasteur researchers tested the response of newborn mice to each type of T lymphocyte and to both together.
Long-lived cytotoxic T lymphocyte memory in mucosal tissues after mucosal but not systemic immunization.
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).
Also see Evans 2002 (3): "Our findings provide the first evidence that depression may alter the function of killer lymphocytes in HIV-infected women and suggest that depression may decrease natural killer cell activity and lead to an increase in activated CD8 T lymphocytes and viral load" (quote from the abstract).
There are, for example, reports demonstrating the feasibility of assessing CD38 expression levels on CD8 + T lymphocytes through quantitative cytometric analyses (3-5).
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.