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National Institute of Environmental Health Sciences

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Your Environment. Your Health.

Publication Detail

Title: Arsenic Disruption of DNA Damage Responses-Potential Role in Carcinogenesis and Chemotherapy.

Authors: Muenyi, Clarisse S; Ljungman, Mats; States, J Christopher

Published In Biomolecules, (2015 Sep 24)

Abstract: Arsenic is a Class I human carcinogen and is widespread in the environment. Chronic arsenic exposure causes cancer in skin, lung and bladder, as well as in other organs. Paradoxically, arsenic also is a potent chemotherapeutic against acute promyelocytic leukemia and can potentiate the cytotoxic effects of DNA damaging chemotherapeutics, such as cisplatin, in vitro. Arsenic has long been implicated in DNA repair inhibition, cell cycle disruption, and ubiquitination dysregulation, all negatively impacting the DNA damage response and potentially contributing to both the carcinogenic and chemotherapeutic potential of arsenic. Recent studies have provided mechanistic insights into how arsenic interferes with these processes including disruption of zinc fingers and suppression of gene expression. This review discusses these effects of arsenic with a view toward understanding the impact on the DNA damage response.

PubMed ID: 26404387 Exiting the NIEHS site

MeSH Terms: No MeSH terms associated with this publication

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