Redox regulation of DNA repair: implications for human health and cancer therapeutic development

Antioxid Redox Signal. 2010 Jun 1;12(11):1247-69. doi: 10.1089/ars.2009.2698.


Redox reactions are known to regulate many important cellular processes. In this review, we focus on the role of redox regulation in DNA repair both in direct regulation of specific DNA repair proteins as well as indirect transcriptional regulation. A key player in the redox regulation of DNA repair is the base excision repair enzyme apurinic/apyrimidinic endonuclease 1 (APE1) in its role as a redox factor. APE1 is reduced by the general redox factor thioredoxin, and in turn reduces several important transcription factors that regulate expression of DNA repair proteins. Finally, we consider the potential for chemotherapeutic development through the modulation of APE1's redox activity and its impact on DNA repair.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
  • DNA / genetics
  • DNA / metabolism*
  • DNA Repair*
  • DNA-(Apurinic or Apyrimidinic Site) Lyase / metabolism
  • Health
  • Humans
  • Neoplasms / drug therapy*
  • Neoplasms / genetics
  • Neoplasms / metabolism*
  • Oxidation-Reduction


  • DNA
  • APEX1 protein, human
  • DNA-(Apurinic or Apyrimidinic Site) Lyase