Review of Mammalian DNA Repair and Translational Implications1

  1. W. Kent Hansen and
  2. Mark R. Kelley
  1. Department of Pediatrics, Section of Hematology/Oncology, Herman B. Wells Center for Pediatric Research and Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana

    Abstract

    The area of mammalian DNA repair and its relationship to cancer and therapeutic approaches is rapidly growing, both through the studies of basic mechanisms and in the use of this knowledge for translational applications. We have attempted to briefly and succinctly cover the four pathways of mammalian DNA repair, which are: direct reversal, mismatch, nucleotide excision, and base excision repair. We have also tried to identify and reference results in the literature relating the various repair pathways to cellular resistance following chemotherapeutic treatments and to provide some potential direction whereby laboratory results may be applicable to clinical therapeutics, particularly for cancer treatments.

    Footnotes

    • Send reprint requests to: Mark R. Kelley, Ph.D., Department of Pediatrics (Hematology/Oncology), Herman B. Wells Center for Pediatric Research, 702 Barnhill Dr., Rm. 2600, Indianapolis, IN 46202. E-mail: mkelley{at}iupui.edu

    • 1 The authors were supported by National Institutes of Health/National Cancer Institute Program Project Grant PO1-CA75426 and by NIH Grants CA76643, ES07815, NS38506, Army CDMRP OC990085, and the Gynecologic Oncology Group (GOG) Ovarian Cancer Research Fund. We also apologize to all those investigators whose references we had to leave out due to the limitation of references allowed.

    • Abbreviations:
      MMR
      mismatch repair
      BER
      base excision repair
      NER
      nucleotide excision repair
      MMS
      methyl methanesulfonate
      MGMT/AGT
      O6-methylguanine-DNA methyltransferase
      BCNU
      1,3-bis(2-chloroethyl)-1-nitrosourea
      HNPCC
      hereditary nonpolyposis colon cancer
      XP
      xeroderma pigmentosum
      RPA
      replication protein A
      TFIIH
      transcription factor IIH (XPB, XPD, p62, p52, p44, p44)
      ERCC1
      excision repair cross-complementing 1
      FEN
      flap endonuclease
      PCNA
      proliferating cell nuclear antigen
      RFC
      replication factor C
      O6-meG
      O6-methylguanine
      XRCC1
      X-ray cross-species complementing 1
      8-oxoG
      7,8-dihydro-8-oxoguanine
      Fpg
      formamidopyrimidine glycosylase
      3-meA
      3-methyladenine
      • Received March 10, 2000.
      • Accepted April 17, 2000.
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