Knockdown of Chk1 sensitizes human colon carcinoma HCT116 cells in a p53-dependent manner to lidamycin through abrogation of a G2/M checkpoint and induction of apoptosis

Abstract excerpt

Recent advances in cell cycle regulation have led to a suggestion of therapeutically targeting cell cycle checkpoint pathways in cancer cells to increase the toxicity of DNA-damaging agents. In this study, we investigate whether knockdowns of checkpoint kinases Chk1 and Chk2 by RNA interfering potentiate the cytotoxicity and abrogate G(2)/M checkpoint induced by DNA-damaging agent lidamycin (LDM) in HCT116 cells...

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