What chemical do cytotoxic T cells release?
1 Answer
Cytotoxic T-cells produce the cytotoxic proteins perforin and granzymes.
Explanation:
Cytotoxic T-cells are cells of the immune system that can recognize and kill aberrant cells. For example cells that are infected by a virus or cancer cells.
Cytotoxic T-cells (
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Perforin: a protein that polymerizes and forms a pore in the membrane of the sick target cell.
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Granzymes: name for a group of different proteases (enzymes that break down proteins), specifically serine proteases.
Granzymes can enter the cell through the perforin pores. The proteases target proteins that are involved in apoptosis = programmed cell death. So the granzymes give the cell the signal to kill itself in an orderly manner.