Mezerein is a chemical compound with antileukemic properties and acts as a PKC activator. It effectively inhibits the growth of yeast expressing PKC alpha (IC 50 = 1190 nM), PKC beta1 (IC 50 = 908 nM), and PKC delta (IC 50 = 141 nM). However, it does not inhibit the growth of yeast expressing PKC.

Mezerein is an antileukemic principle isolated from Daphne mezereum L[2]. Mezerein (50 ng/mL; 72 hours) potently inhibit tumorigenic murine macrophage cell line M5076 cellular proliferation[3]. Cell Proliferation Assay[3]Cell Line: M5076 cells Concentration: 50 ng/mL Incubation Time: 72 hours Result: Inhibited cellular proliferation (by greater than 90%).

Mezerein exhibits antileukemic activity against the P-388 lymphocytic leukemia in mice. Mezerein (50 μg/kg) shows significant inhibitory activity against the P-388 and L-1210 leukemias in mice[2].