cytotoxin

https://doi.org/10.1351/goldbook.13075
Substance with a specific toxic effect on certain cells.
Note: Major cytotoxins made by cytotoxic T lymphocytes (CTL, Tc) and natural killer (NK) cells that participate in the destruction of target cells include perforins, granzymes, and granulolysins.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1154 [Terms] [Paper]