HDAC-IN-40 is a potent alkoxyamide-based HDAC inhibitor with Ki of 60 nM and 30 nM for HDAC2 and HDAC6, respectively. HDAC-IN-40 had antitumor effects
HDAC-IN-40 shows antiproliferative activity against the cell line A2780 and Cal27 with IC50 values of 0.89 µM and 0.72 µM, respectively. HDAC-IN-40 induces accumulation of acetyl α-tubulin in Cal27 and Cal27CisR. HDAC-IN-40 enhances the Cisplatin-induced cytotoxicity via caspase-3/7 activation.