乙型肝炎病毒诱发肝细胞癌分子机制研究进展

乙型肝炎病毒（HBV）诱导肝细胞癌（HCC）的发生是一个多阶段、多因素相互作用的复杂过程。HBV促进HCC发生、发展的途径主要包括HBV DNA整合至宿主肝细胞基因组从而影响整合位点的基因功能、形成致癌作用的截短蛋白、造成宿主基因组的不稳定，HBV基因组S、C、X区基因突变，HBV X基因编码的HBx蛋白激活原癌基因、抑制抑癌基因等。本文综述了近年来HBV诱发HCC分子机制的研究进展，以期为HCC预防、早期预测及术后辅助治疗提供理论指导。

Advances on molecular mechanism of hepatitis B virus-induced hepatocellular carcinoma

The pathogenesis of hepatitis B virus （HBV）-associated hepatocellular carcinoma （HCC） is complicated with the crosstalk of multiple factors and the multi-step processes. The main mechanisms underlying the HBV-induced HCC include:①integration of HBV DNA into the host hepatocyte genome to alter gene function at the insertion site，resulting in host genome instability and expression of carcinogenic truncated proteins;②HBV gene mutations at S，C，and X coding regions in the genome;③HBV X gene-encoded HBx protein activates proto-oncogenes and inhibits tumor suppressor genes，leading to the HCC occurrence. In this article，the recent research progress on the molecular mechanism of HBV-induced HCC is comprehensively reviewed，so as to provide insights into the prevention，early prediction and postoperative adjuvant therapy of HCC.