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Article

F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection

  • Authors:
    • Huiming Li
    • Jian'an Jia
    • Mengmeng Wang
    • Hui Wang
    • Xing Gu
    • Meng Fang
    • Chunfang Gao
  • View Affiliations / Copyright

    Affiliations: Department of Laboratory Medicine, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, P.R. China
  • Pages: 3292-3300
    |
    Published online on: March 23, 2017
       https://doi.org/10.3892/mmr.2017.6362
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Abstract

Hepatitis B virus (HBV) reverse transcriptase (RT) is encoded by the polymerase gene in the reverse transcriptase region, which overlaps with the S gene. The association between mutations of HBV RT and the pathobiological features of hepatocellular carcinoma (HCC) remain to be elucidated. The present study aimed to examine mutations in this region of the HBV genome and its clinical significance. Briefly, HBV total DNA was extracted from 84 pairs of HCC tumor tissue and corresponding adjacent non‑tumor tissue samples. The RT/S regions (nt130‑1161) were amplified and sequenced using the Sanger method, and associations between RT mutations and the clinical characteristics of patients with HCC were analyzed. Finally, 27 and 29 mutations with frequencies >5% were identified in the RT and S regions, respectively. The rtF221Y variation and a tumor size >8 cm were found to be independent risk factors for the postoperative recurrence of HCC, with hazard ratios of 2.345 (95% CI, 1.391‑3.953; P=0.001) and 1.838 (95% CI, 1.069‑3.161; P=0.028), respectively. rtF221Y was also an independent risk factor for poor overall survival rates (HR=2.557; 95% CI, 1.344‑4.866; P=0.004). The mutation of R122 K in the HBV S protein was closely associated with tumor recurrence (P<0.001). As a result, rtF221Y was identified as a risk factor for poor prognosis and may be a potential viral marker for predicting prognosis in HCC.
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Copy and paste a formatted citation
Spandidos Publications style
Li H, Jia J, Wang M, Wang H, Gu X, Fang M and Gao C: F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection. Mol Med Rep 15: 3292-3300, 2017.
APA
Li, H., Jia, J., Wang, M., Wang, H., Gu, X., Fang, M., & Gao, C. (2017). F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection. Molecular Medicine Reports, 15, 3292-3300. https://doi.org/10.3892/mmr.2017.6362
MLA
Li, H., Jia, J., Wang, M., Wang, H., Gu, X., Fang, M., Gao, C."F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection". Molecular Medicine Reports 15.5 (2017): 3292-3300.
Chicago
Li, H., Jia, J., Wang, M., Wang, H., Gu, X., Fang, M., Gao, C."F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection". Molecular Medicine Reports 15, no. 5 (2017): 3292-3300. https://doi.org/10.3892/mmr.2017.6362
Copy and paste a formatted citation
x
Spandidos Publications style
Li H, Jia J, Wang M, Wang H, Gu X, Fang M and Gao C: F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection. Mol Med Rep 15: 3292-3300, 2017.
APA
Li, H., Jia, J., Wang, M., Wang, H., Gu, X., Fang, M., & Gao, C. (2017). F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection. Molecular Medicine Reports, 15, 3292-3300. https://doi.org/10.3892/mmr.2017.6362
MLA
Li, H., Jia, J., Wang, M., Wang, H., Gu, X., Fang, M., Gao, C."F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection". Molecular Medicine Reports 15.5 (2017): 3292-3300.
Chicago
Li, H., Jia, J., Wang, M., Wang, H., Gu, X., Fang, M., Gao, C."F221Y mutation in hepatitis B virus reverse transcriptase is associated with hepatocellular carcinoma prognosis following liver resection". Molecular Medicine Reports 15, no. 5 (2017): 3292-3300. https://doi.org/10.3892/mmr.2017.6362
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