title: DNA-repair and carcinogen-metabolising enzymes genetic polymorphisms as an independent risk factor for hepatocellular carcinoma in Caucasian liver-transplanted patients.
abstract: We studied polymorphisms of three genes, UDP-glucuronosyltransferase1A7 (UGT1A7), Glutathione-S-transferaseM1 (GSTM1) and X-Ray Cross Complementing group 1 (XRCC1), involved in detoxification of xenobiotics or DNA-repair in a population of 133 liver-transplanted patients, including 56 patients with hepatocellular carcinoma (HCC) and 77 without HCC, and in 89 healthy controls originating from the south of France. Multiple logistic regression analysis showed that, among liver-transplanted patients, interactions between XRCC1-G/G or -G/A and GSTM1-nul polymorphisms were independently associated with hepatocellular carcinoma (p interaction=0.027) concurrently with increasing age (p<0.001), male sex (p=0.037) and chronic hepatitis B or C virus infection (p=0.018 and p=0.001 respectively). On the contrary, no relationship was observed between UGT1A7 polymorphisms considered alone or in interaction with GSTM1 or XRCC1 polymorphisms and HCC. This suggests that concomitant impaired metabolism of carcinogenic compounds and impaired DNA-repair function play an important role in liver carcinogenesis in high-risk cirrhotic patients originating from the south of France.
authors.affiliation: Service d'hépatogastroentérologie, CHU Conception, 147 Bd Baille, 13005 Marseille, France.
authors.forename: Patrick
authors.initials: P
authors.lastname: Borentain
authors.forename: Victoria
authors.initials: V
authors.lastname: Gérolami
authors.forename: Pascal
authors.initials: P
authors.lastname: Ananian
authors.forename: Stéphane
authors.initials: S
authors.lastname: Garcia
authors.forename: Anderson
authors.initials: A
authors.lastname: Noundou
authors.forename: Daniele
authors.initials: D
authors.lastname: Botta-Fridlund
authors.forename: Yves Patrice
authors.initials: YP
authors.lastname: Le Treut
authors.forename: Jean Louis
authors.initials: JL
authors.lastname: Bergé-Lefranc
authors.forename: René
authors.initials: R
authors.lastname: Gérolami
mesh_terms: D002273:Carcinogens / Q000378:metabolism; D006528:Carcinoma, Hepatocellular / Q000201:enzymology / Q000235:genetics* / Q000601:surgery; D004260:DNA Repair; D045643:DNA Repair Enzymes / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000235:genetics*; D004587:Electrophoresis, Agar Gel; D005260:Female; D005784:Gene Amplification; D014453:Glucuronosyltransferase / Q000235:genetics*; D005982:Glutathione Transferase / Q000235:genetics*; D006801:Humans; D008113:Liver Neoplasms / Q000201:enzymology / Q000235:genetics* / Q000601:surgery; D016031:Liver Transplantation; D008297:Male; D008875:Middle Aged; D011110:Polymorphism, Genetic; D012307:Risk Factors; D000076105:X-ray Repair Cross Complementing Protein 1
chemical_list: D002273:Carcinogens; D045643:DNA Repair Enzymes; D004268:DNA-Binding Proteins; D014453:Glucuronosyltransferase; D005982:Glutathione Transferase; D000076105:X-ray Repair Cross Complementing Protein 1; C000619371:XRCC1 protein, human; C524630:UGT1A7 protein, human