A series of novel Schiff bases -benzothiazole hybrids was designed, synthesized and evaluated for their
anticancer activity by MTT assay and western blot method. Antiproliferative screening indicated that compound
containing dihydroxy substituents had potent inhibitory activity with IC50 value 34µg/ml against SKOV3, A2780-S
and A2780-CR cell lines. It showed more potent cytotoxicity in combination with cisplatin and paclitaxel than
alone in the selected cell lines (SKOV3, A2780 and A2780-CR models). The in vitro cytotoxicity of the
compounds on IOSE 364 cell line was evaluated to establish the selectivity. Molecular docking study exhibited
good binding against epidermal growth factor receptor, which was further ascertained by immunoblot assay using specific antibody
against phosphorylated EGFR, and thus unravelling the targeted anticancer mechanism.
Keywords: A2780-CR, A2780-PR, A2780-S, benzothiazole, schiff bases, SKOV3.
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