Beclin 1 acetylation impairs the anticancer effect of aspirin in colorectal cancer cells.

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Beclin 1 acetylation impairs the anticancer effect of aspirin in colorectal cancer cells.

Oncotarget. 2017 Sep 26;8(43):74781-74790

Authors: Sun T, Ming L, Yan Y, Zhang Y, Xue H

Abstract
Regular use of aspirin can reduce cancer incidence, recurrence, metastasis and cancer-related mortality. Aspirin suppresses proliferation and induces apoptosis and autophagy in colorectal cancer cells, but the precise mechanism is not clear. In this study, we demonstrated that aspirin induced autophagosome formation in colorectal cancer cells, but autophagic degradation was blocked through aspirin-mediated Beclin 1 acetylation. Blocked autophagic degradation weakened aspirin-induced cell death. Collectively, our findings indicate the dual roles of aspirin on autophagy, and demonstrate a new mechanism by which Beclin 1 acetylation impairs the anticancer effect of aspirin in colorectal cancer cells.

PMID: 29088823 [PubMed]

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