On the Possible Role of the Miscoding DNA-Lesions, 1,N6-Etheno-Adenine and 3,N4-Ethenocytosine, in Vinyl Chloride-Induced Mutagenesis and Carcinogenesis

  • Alain Barbin
  • Helmut Bartsch
  • Philippe Lecomte
  • Miroslav Redman
Part of the NATO Advanced Study Institutes Series book series (NSSA, volume 40)


Chloroacetaldehyde (CAA) and chloroethylene oxide (CEO), two reactive metabolites of vinyl chloride, were used to introduce increasing amounts of 1,N6-ethenoadenine (εA) and 3,N4-etheno cytosine (εC) residues in poly(dA) and poly(dC), respectively. The modified polynucleotides were assayed with E. coli DNA polymerase I for their template activity and for misincorporation. The miscoding properties of εA and εC that we observed may explain the mutagenic effects reported for vinyl chloride and its metabolites; these lesions may also represent one of the initial steps in vinyl chloride or CEO-induced carcinogenesis.


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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • Alain Barbin
    • 1
  • Helmut Bartsch
    • 1
  • Philippe Lecomte
    • 2
  • Miroslav Redman
    • 2
  1. 1.International Agency for Research on CancerLyon Cédex 2France
  2. 2.Free University of BrusselsRhode-St-GenèseBelgium

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