Evolutionary regulation of human Fas ligand (CD95L) by plasmin in solid cancer immunotherapy

Abstract excerpt

Despite sharing >98% genomic similarity, humans are more likely to develop cancers than our closest living ancestors, the nonhuman primates. Here, we unexpectedly discover that, unlike chimpanzee and other primates, a critical embryonic development, immune homeostasis, and general cell-death regulator protein called Fas Ligand (FasL) contains a Pro153-Ser153 evolutionary substitution in humans. The latter renders...

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