Pre-S deletions of hepatitis B virus predict recurrence of hepatocellular carcinoma after curative resection

Medicine (Baltimore). 2017 Oct;96(43):e8311. doi: 10.1097/MD.0000000000008311.

Abstract

The relationship between hepatitis B virus (HBV) and the prognosis of hepatocellular carcinoma (HCC) after surgery remains uncertain. A retrospective cohort study was performed to evaluate the impact of pre-S deletions, T1762/A1764, and A1896 mutations on prognosis of HCC after curative resection. A total of 113 patients with positive serum HBV DNA (>200 IU/mL) who had underwent curative resection of pathologically proven HCC were recruited to determine the risk factors affecting the prognosis.The median follow-up time was 36.5 months and recurrence was detected in 67 patients (59.3%). The cumulative recurrence rates and overall survival rates at 1-, 3-, and 5-year after curative resection were 18.0%, 49.7%, 70.3%, and 93.7%, 61.0%, 42.5%, respectively. Patients with pre-S deletions showed significantly higher recurrence rates compared with those with wild type infection (HR: 1.822, P = .018), but not related with a significantly poor survival (HR: 1.388, P = .235). Subgroup analysis indicated that the patients with type III deletion had significant higher tumor recurrence rates than other deletion types (HR: 2.211, 95% confidence intervals [CI]: 1.008-4.846, P = .048). Multivariate analysis revealed that pre-S deletion, tumor size >3 cm in diameter, and the presence of microvascular invasion were independent risk factors for tumor recurrence. HBV pre-S deletions were found to be clustered primarily in the 5' end of pre-S2 region and were more often found between amino acids 120 and 142 of the pre-S2 domain. The domains most frequently potentially involved were the transactivator domain in pre-S2 and polymerized human serum albumin binding site.Our cohort showed that pre-S deletions at the time of resection could predict tumor recurrence in HCC patients after curative resection.

MeSH terms

  • Adult
  • Aged
  • Carcinoma, Hepatocellular* / complications
  • Carcinoma, Hepatocellular* / pathology
  • Carcinoma, Hepatocellular* / physiopathology
  • Carcinoma, Hepatocellular* / surgery
  • China / epidemiology
  • Cohort Studies
  • DNA, Viral / isolation & purification
  • Female
  • Hepatectomy* / methods
  • Hepatectomy* / statistics & numerical data
  • Hepatitis B virus* / genetics
  • Hepatitis B virus* / pathogenicity
  • Hepatitis B* / complications
  • Hepatitis B* / diagnosis
  • Hepatitis B* / virology
  • Humans
  • Liver Neoplasms* / complications
  • Liver Neoplasms* / pathology
  • Liver Neoplasms* / physiopathology
  • Liver Neoplasms* / surgery
  • Male
  • Middle Aged
  • Neoplasm Recurrence, Local* / mortality
  • Neoplasm Recurrence, Local* / virology
  • Prognosis
  • Retrospective Studies
  • Sequence Deletion / genetics
  • Statistics as Topic
  • Survival Analysis

Substances

  • DNA, Viral