ARN14988 is a potent inhibitor of acidceramidase (IC50 = 12.8 nM for the human enzyme). It inhibits acidceramidase activity and increases levels of C16 dihydro ceramide and C16 ceramide in A375, G361, M14, MeWo, MNT-1, and SK-MEL-28 melanoma cells. ARN14988 also reduces growth of A375 and G361 melanoma cells (EC50s = 41.8 and 67.7 μM, respectively).
SABRAC inhibits acidceramidase in PC3 MC metastatic prostate cancer cells (IC50 = <1 µM), as well as induces accumulation of ceramides in the same cells.
SOCLAC, a derivative of the acidceramidase inhibitor SABRAC, functions as an irreversible inhibitor of acidceramidase with an inhibition constant (Ki) of 40.2 nM.