Article
Article
Cytolysis
Article By:
Ostergaard, H. L. Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada.
Last reviewed:December 2019
DOI:https://doi.org/10.1036/1097-8542.179100
An important immune function involving the dissolution of certain cells. There are a number of different cytolytic cells within the immune system that are capable of lysing a broad range of cells. The most thoroughly studied of these cells are the cytotoxic lymphocytes, which appear to be derived from different cell lineages and may employ a variety of lytic mechanisms. Cytotoxic cells are believed to be essential for the elimination of oncogenically or virally altered cells, but they can also play a detrimental role by mediating graft rejection or autoimmune disease. There are two issues regarding cytotoxic lymphocytes that are of concern: one is the target structure that is being recognized on the target cell, that is, the cell that is killed, which triggers the response; and the other is the lytic mechanism. See also: Cellular immunology
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