Unique Features of Hepatitis B Virus-Related Hepatocellular Carcinoma in Pathogenesis and Clinical Significance

被引:21
|
作者
Wang, Sheng-Han [1 ]
Yeh, Shiou-Hwei [2 ,3 ]
Chen, Pei-Jer [1 ,3 ,4 ,5 ]
机构
[1] Natl Taiwan Univ Hosp, Hepatitis Res Ctr, Taipei 10002, Taiwan
[2] Natl Taiwan Univ, Coll Med, Grad Inst Microbiol, Taipei 10051, Taiwan
[3] Natl Taiwan Univ, Coll Med, NTU Ctr Genom & Precis Med, Taipei 10055, Taiwan
[4] Natl Taiwan Univ, Coll Med, Grad Inst Clin Med, Taipei 10002, Taiwan
[5] Natl Taiwan Univ Hosp, Dept Internal Med, Taipei 10002, Taiwan
关键词
hepatitis B virus (HBV); hepatocellular carcinoma (HCC); inflammation; sex hormone; virus integration; circulating tumor DNA; ENDOPLASMIC-RETICULUM STRESS; HBV DNA INTEGRATION; CIRCULATING TUMOR DNA; CYCLE-RELATED KINASE; X-PROTEIN; ANDROGEN-RECEPTOR; PROGENITOR CELLS; NATURAL-HISTORY; SMC5/6; COMPLEX; LIVER-DISEASE;
D O I
10.3390/cancers13102454
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Simple Summary Hepatitis B virus (HBV) infection is the major risk factor for hepatocellular carcinoma (HCC). Understanding the unique features for HBV-induced HCC can shed new light on the unmet needs in its early diagnosis and effective therapy. During decades of chronic hepatitis B, hepatocytes undergoing repeated damage and regeneration accumulate genetic changes predisposing to HCC development. In addition to traditional mutations in viral and cellular oncogenes, HBV integration into the cell chromosomes is an alternative genetic change contributing to hepatocarcinogenesis. A striking male dominance in HBV-related HCC further highlights an interaction between androgen sex hormone and viral factors, which contributes to the gender difference via stimulating viral replication and activation of oncogenes preferentially in male patients. Meanwhile, a novel circulating tumor biomarker generated by HBV integration shows great potential for the early diagnosis of HCC. These unique HBV-induced hepatocarcinogenic mechanisms provide new insights for the future development of superior diagnosis and treatment strategies. Hepatitis B virus (HBV) infection is one of the important risk factors for hepatocellular carcinoma (HCC) worldwide, accounting for around 50% of cases. Chronic hepatitis B infection generates an inflammatory microenvironment, in which hepatocytes undergoing repeated cycles of damage and regeneration accumulate genetic mutations predisposing them to cancer. A striking male dominance in HBV-related HCC highlights the influence of sex hormones which interact with viral factors to influence carcinogenesis. HBV is also considered an oncogenic virus since its X and surface mutant proteins showed tumorigenic activity in mouse models. The other unique mechanism is the insertional mutagenesis by integration of HBV genome into hepatocyte chromosomes to activate oncogenes. HCC survival largely depends on tumor stages at diagnosis and effective treatment. However, early diagnosis by the conventional protein biomarkers achieves limited success. A new biomarker, the circulating virus-host chimera DNA from HBV integration sites in HCC, provides a liquid biopsy approach for monitoring the tumor load in the majority of HBV-HCC patients. To maximize the efficacy of new immunotherapies or molecular target therapies, it requires better classification of HCC based on the tumor microenvironment and specific carcinogenic pathways. An in-depth study may benefit both the diagnosis and treatment of HBV-related HCC.
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页数:19
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