Cambinol decreases tumor necrosis factor-α or interleukin-1 β-induced increases of ceramide and cell death in primary neurons. Cambinol is an inhibitor of the NAD-dependent deacetylase activity of sirtuin, human silent information regulator type 1/2 (SIRT1/2), with IC50 values of 56 μM and 59 μM for SIRT1 and SIRT2, respectively. Cambinol induces apoptosis in BCL6-expressing Burkitt lymphoma cell lines. Cambinol is approximately a 10-fold more potent human nSMase2 inhibitor compared to SIRT1/2. Cambinol is a potent inhibitor of acidic pHe-mediated anterograde lysosome trafficking.
In vivo
Cambinol is well tolerated in mice and has potent antitumor activity in vivo.