Serum manganese superoxide dismutase and thioredoxin are potential prognostic markers for hepatitis C virus-related hepatocellular carcinoma

• Published in: World journal of gastroenterology : WJG Vol. 17; no. 44; pp. 4890 - 4898
• Main Authors: Tamai, Tsutomu, Uto, Hirofumi, Takami, Yoichiro, Oda, Kouhei, Saishoji, Akiko, Hashiguchi, Masashi, Kumagai, Kotaro, Kure, Takeshi, Mawatari, Seiichi, Moriuchi, Akihiro, Oketani, Makoto, Ido, Akio, Tsubouchi, Hirohito
• Format: Journal Article
• Language: English
• Published: United States Baishideng Publishing Group Co., Limited 28.11.2011
• Subjects: Aged; alpha-Fetoproteins - metabolism; Animals; Biomarkers - blood; Biomarkers, Tumor - blood; Brief; Carcinoma, Hepatocellular - blood; Carcinoma, Hepatocellular - enzymology; Carcinoma, Hepatocellular - virology; Diagnosis, Differential; Female; Hepacivirus - pathogenicity; Hepatitis C - blood; Hepatitis C - enzymology; Hepatitis C - virology; Humans; Liver Neoplasms - blood; Liver Neoplasms - enzymology; Liver Neoplasms - virology; Male; Middle Aged; MnSOD; Oxidative Stress; Prognosis; Protein Precursors - blood; Prothrombin; Retrospective Studies; Superoxide Dismutase - blood; Survival Rate; Thioredoxins - blood; 丙型肝炎病毒; 凝血酶原时间; 硫氧还蛋白; 肝癌; 血清白蛋白; 锰超氧化物歧化酶; 预后; Oxidative stress; Hepatocellular carcinoma; Hepatitis C virus; Thioredoxin; Manganese superoxide dismutase
• DOI: 10.3748/wjg.v17.i44.4890
• ISSN: 1007-9327

AIM：To evaluate the clinical significance of oxidative stress markers in patients with hepatitis C virus（HCV）related hepatocellular carcinoma（HCC）.METHODS：Sixty-four consecutive patients who were admitted to Kagoshima University Medical and Dental Hospital were enrolled in this retrospective study.All patients had chronic liver disease（CLD） due to infection with HCV.Thirty patients with HCV-related HCC,34 with HCV-related CLD without HCC（non-HCC）,and 20 healthy volunteers（HVs） were enrolled.Possible associations between serum manganese superoxide dismutase（MnSOD） and thioredoxin（TRX） levels and clinical parameters or patient prognosis were analyzed over a mean follow-up period of 31.7 mo.RESULTS：The serum MnSOD levels were significantly higher in patients with HCV-related HCC than in patients without HCC（P = 0.03） or HVs（P 〈 0.001）.Similarly,serum TRX levels were also significantly higher in patients with HCV-related HCC than in patients without HCC（P = 0.04） or HVs（P 〈 0.01）.However,serum levels of MnSOD and TRX were not correlated in patients with HCC.Among patients with HCC,the overall survival rate（OSR） was lower in patients with MnSOD levels ≥ 110 ng/mL than in patients with levels 〈 110 ng/mL（P = 0.01）,and the OSR tended to be lower in patients with TRX levels 〈 80 ng/mL（P = 0.05）.In addition,patient prognosis with HCC was poorest with serum MnSOD levels ≥ 110 ng/mL and serum TRX levels 〈 80 ng/mL.Furthermore,a multivariate analysis using a Cox proportional hazard model and serum levels of five factors（MnSOD,prothrombin time,serum albumin,serum α-fetoprotein（AFP）,and serum des-γ-carboxy prothrombin） revealed that MnSOD levels ≥ 110 ng/mL（risk ratio：4.12,95% confidential interval：1.22-13.88,P = 0.02） and AFP levels ≥ 40 ng/mL（risk ratio：6.75;95% confidential interval：1.70-26.85,P 〈 0.01） were independent risk factors associated with a poor patient prognosis.CONCLUSION：Serum MnSOD and TRX levels are potential clinical biomarkers that predict patient prognosis in HCV-related HCC.