cells that either initiate the immune response (helper T cells) or actively target and destroy cells perceived as foreign (killer T cells).
One of the two major lymphocyte classes that mediate the immune process.
Circulate between blood and lymph. Three subpopulations: helper, killer and supressor. These cells are important in the bodies cellular immune response. When the T-cells enter the circulation they are the small and medium size lymphocytes: they may survive up to five years. T-cells are lymphocytes that have circulated through the thymus gland. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen.
lymphocytes derived from the thymus gland that are characterized by the surface markers they express; function in secretion of proinflammatory mediators and cytotoxic response to cells containing foreign or altered membrane antigens, and in the augmentation or suppression of immune responses by secretion of specific helper or suppressor molecules.
The type of lymphocyte responsible for the initiation of stimulation of antibodies.
Lymphocytes responsible for cell-mediated immunity and for the coordination and regulation of the immune response; includes regulatory T cells (helpers and suppressors) and cytotoxic (killer) T cells.
One of the two major types of lymphocytes (white blood cells) There are two types of T-cells - "helper" T-cells and "killer" T-cells.!-- google_ad_client = "pub-6700624969687881"; google_ad_width = 234; google_ad_height = 60; google_ad_format = "234x60_as"; google_ad_type = "text"; google_ad_channel ="7512561969"; google_color_border = "FFFFFF"; google_color_bg = "FFFFFF"; google_color_link = "448079"; google_color_url = "448079"; google_color_text = "414141";
White blood cells (also called T lymphocytes) that play a major part in the immune system and also in transplant organ rejection.
White blood cells or lymphocytes that are part of the immune system concerned with recognising and dealing with foreign or abnormal cells discovered in the body's tissues. See also: NK cells
are a subset of lymphocytes defined by their development in the thymus and by heterodimeric receptors associated with the proteins of the CD3 complex. Most T cells have heterodimeric receptors but T cells have a heterodimeric receptor.
Prothymocytes from the bone marrow migrate to the thymus, where they develop into thymic lymphoid cells, T cells, and begin to mature. From the thymus they go to a particular area of the peripheral lymphoid tissues and from there they circulate between blood and lymph. Three subpopulations of T cells are known: helper or cooperator cells (T4,), which enhance the production of antibody-forming cells from B lymphocytes; cytotoxic or killer T cells, which are formed after mature T cells interact with some antigens present on foreign cells-these cells cause graft rejection and kill foreign cells in vitro; suppressor T cells, which suppress production of antibody forming cells from B lymphocytes.
A major class of lymphocytes. Two types of T cells – cytotoxic T cells and helper T cells – play a vital role in the immune response.
White blood cells that are important in the body's immune system. Also known as T lymphocytes, they mature in the thymus.
small white blood cells (also known as T lymphocytes) that direct or directly participate in immune defenses.
The T cells are cells derived from the thymus that play a major role in a variety of cell-mediated immune reactions. (B cells are also important in immunity because they synthesize and secrete antibodies which protect animals from infection, viruses, etc.)
These are cells that play a key role in the body's mechanisms for defending itself against foreign bodies (such as bacteria or viruses). Type 1 diabetes is caused by squads of T cells attacking the beta cells in the pancreas, for reasons we do not fully understand.
thymus derived immunocytes: helper, suppressor, and cytotoxic T cells
White blood cells that mature in the thymus and attack viruses. Also known as T lymphocytes.
These are specialized cells of the immune system which bind to the MHC proteins, and initiate an immune response when they encounter protein fragments that are foreign to them.
T lymphocytes; a component of the immune system 716, 790
A specific kind of white blood cell, active in controlling the immune response and attacking infections.
White blood cells that play a major role in rejection; they destroy cells that are infected with bacteria and viruses and can identify a new organ as something that is harmful to the body.
The type of lymphocyte responsible for cell-mediated immunity; also protects against infection by parasites, fungi, and protozoans and can kill cancerous cells; circulate in the blood and become associated with lymph nodes and the spleen.
See "CD4 cells."
White blood cells that play an important part in the immune system. There are three different types of T cells, each of which has different subsets. The commonly measured T cells are helper T cells, killer T cells, and suppressor T cells.
thymus derived white blood cells (lymphocytes) that participate in a variety of cell-mediated immune responses.
a type of cell that helps the immune system; also known as T helper cells, which switch the immune system on and T-suppresser which switch the immune system off.
Lymphocytes that originate in the thymus gland. T cells regulate the immune system's response to infections, including HIV. CD4 lymphocytes are a subset of T lymphocytes.
(T Lymphocytes.) T cells are white blood cells, derived from the thymus gland, that participate in a variety of cell-mediated immune reactions. Three fundamentally different types of T cells are recognized: helper, killer (see killer T cells), and suppressor. They are the immune system's "border police," responsible for finding infected or cancerous cells. The killer T cell receptors (TCR) bind to an infected cell's distress signal -- a combination of one of the cell's own proteins and a tiny fragment of the invader's protein. The bits of foreign protein are made with the help of enzymes inside the invaded cell that chew up the pathogens into protein fragments ( peptides), which are then scooped up by the major histocompatibility complex (see MHC) and carted through the cell membrane.
small white blood cells (also known as T Lymphocytes), comprise functional subsets: helper T cells (Th) , cytotoxic T cells (Tc) and Natural Killer T cells (NKT).
immune cells that mature in the thymus
Small white blood cells that orchestrate and/or directly participate in the immune defenses. Also known as T lymphocytes, they are processed in the thymus and secrete lymphokines.
White blood cells that help fight infection. Many lymphomas are made of T cells.
Lymphocytes that have travelled to and resided in the thymus or are descended from those that have done so. T-cell function is immensely complex and is best described in immunology textbooks.
White blood cells that can both directly attack foreign substances, such as viruses and cancer cells, as well as regulate the immune system.
Immune cells responsible for cell-mediated immunity. Named for Thymus (the organ in which they mature). There are different types of T cells: cytotoxic, helper, regulatory, suppressor and memory
Cells that orchestrate immune activity by means of specific receptors for antigens, commands to other immune cells, and the production of cytokines. A form of T cell called the Th1 cell predominates in MS autoimmunity, causing the inflammation that leads to nerve damage and symptoms in MS.
A white blood cell responsible for the body's immunity. T cells can destroy cells infected by viruses, graft cells and other altered cells.
immune system cells that develop in the thymus gland. Findings suggest that T cells are implicated in myelin destruction.
(T lymphocytes) T cells are white blood cells derived from the thymus gland that participate in a variety of cell-mediated immune reactions. Three fundamentally different types of T cells are recognized helper, killer, and suppressor. They are essential for a normal functioning immune system.
A thymus derived white blood cell that precipitates a variety of cell mediated immune reactions. Three fundamentally different types of T cells are recognized: helper, killer, and suppresser (each has many subdivisions).
One type of white blood cell that attacks virus-infected cells, foreign cells, and cancer cells. They also produce a number of substances that regulate the immune response.