LLY-283

LLY-283 is a potent, selective protein arginine methyltransferase 5 (PRMT5) inhibitor (IC50 = 22 nM). It is selective for PRMT5 over a panel of 32 methyltransferases, including PRMT4, -6, and -7 at 1 μM. LLY-283 reduces proliferation of various breast, gastric, hematological, lung, skin, and ovarian cancer cell lines (IC50s = 3-30 nM).