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T cell
(redirected from Killer T cells)

   Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia 0.01 sec.

T cell

With the B cell, one of the two main types of white blood cell, essential parts of the immune system. T cells originate in the bone marrow, mature in the thymus, and travel in the blood to other lymphoid tissues, such as the spleen, tonsils, and lymph nodes. Through receptor molecules on their surfaces, T cells directly attack invaders (antigens) by binding to them and helping remove them from the body. Because the body contains millions of T and B cells, many of which carry unique receptors, it can respond to virtually any antigen. See also antibody, immunology.


T cell [′tē ‚sel]
(immunology)
One of a heterogeneous population of thymus-derived lymphocytes which participates in the immune responses. Also known as T lymphocyte.


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According to them, when HIV infects a cell, a complex of human immune proteins called HLA (short for human leukocyte antigen) alert killer T cells by displaying bits of the virus on the surface of the cell, in response to which the T-cells trigger immune attack.
The balance between the numbers of killer T cells and T-regs within the tumor dearly shifted in favor of killer Ts, showing that the combo therapy weakened the cancer's defenses and released the brakes on the immune system.
The Edinburgh experts developed a way of extracting a particular kind of white blood cell - called killer T cells.
 
 
 
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