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Various Types of T Cells

T cells are lymphocytes conditioned in the thymus to recognize self-antigen. T cells distinguish between invading elements and host cells by two different types of cell surface complexes.
Cytotoxic T cells, Helper T cells, Memory T cells, Regulatory T cells
Cytotoxic T cells
Entered/Authored by Alicia Prater Modified Wednesday, 20 February 2008 11:07

Also known as: CD8+ T cells

Description: Cytotoxic T cells recognize class I MHC complexes. They release cytotoxins that kill infected or damaged host cells.

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Helper T cells
Entered/Authored by Alicia Prater Modified Wednesday, 20 February 2008 11:07

Also known as: CD4+ T

Description: Helper T cells secrete cytokines, chemicals, to activate other cells in the immune response.

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Memory T cells
Entered/Authored by Alicia Prater Modified Wednesday, 20 February 2008 11:07

Description: Memory T cells are antigen specific and are part of the long-term immune response. The cells recognize later infections by the same agent and can promote a faster response.

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Regulatory T cells
Entered/Authored by Alicia Prater Modified Wednesday, 20 February 2008 05:06

Also known as: Suppressor T cells

Description: Regulatory T cells suppress the immune response to prevent over activity against the host.

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