LCL521 is an acid ceramidase ( ACDase ) inhibitor. LCL521 also inhibits the lysosomal acid sphingomyelinase ( ASMase )
In Vitro
LCL521 (1 µM) acts as a potent inhibitor of cellular ACDase activity, whereas 10 µM LCL521 has an additional, decreased affect on the α-form of this enzyme. LCL521 (10 µM) causes a time-dependent (1 hours and 5 hours) decrease of the α-ACDase form in MCF7 cells. MCE has not independently confirmed the accuracy of these methods. They are for reference only.