T-cells, also known as T lymphocytes, are a type of white blood cell that play a vital role in the immune system. The immune system fights harmful cells, like cancer cells, and infection-causing pathogens. There are several types of T cells, including: Memory T cells These cells are long-lived and can quickly expand into a large number of effector T cells when re-exposed to the antigen that activated them. Memory T cells are formed from cytotoxic T cells and confer long-term immunity against the pathogen. Regulatory T cells These cells regulate or suppress other cells in the immune... Show more T-cells, also known as T lymphocytes, are a type of white blood cell that play a vital role in the immune system. The immune system fights harmful cells, like cancer cells, and infection-causing pathogens. There are several types of T cells, including: Memory T cells These cells are long-lived and can quickly expand into a large number of effector T cells when re-exposed to the antigen that activated them. Memory T cells are formed from cytotoxic T cells and confer long-term immunity against the pathogen. Regulatory T cells These cells regulate or suppress other cells in the immune system. They control the immune response to self and foreign particles (antigens) and help prevent autoimmune disease. CD8+ T cells Also known as "killer T cells", these cells are cytotoxic, meaning they are able to directly kill virus-infected cells, as well as cancer cells. T cells become activated upon antigen recognition by their T-cell receptors (TCR). Show less
T-cells, also known as T lymphocytes, are a type of white blood cell that play a vital role in the immune system. The immune system fights harmful cells, like cancer cells, and infection-causing pathogens.
There are several types of T cells, including: Memory T cells These cells are long-lived and can quickly expand into a large number of effector T cells when re-exposed to the antigen that activated them. Memory T cells are formed from cytotoxic T cells and confer long-term immunity against the pathogen. Regulatory T cells These cells regulate or suppress other cells in the immune system. They control the immune response to self and foreign particles (antigens) and help prevent autoimmune disease. CD8+ T cells Also known as "killer T cells", these cells are cytotoxic, meaning they are able to directly kill virus-infected cells, as well as cancer cells.
T cells become activated upon antigen recognition by their T-cell receptors (TCR).
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