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Hsu YC, Suri V, Nguyen MH, Huang YT, Chen CY, Chang IW, Tseng CH, Wu CY, Lin JT, Pan DZ, Gaggar A, Podlaha O. Inhibition of Viral Replication Reduces Transcriptionally Active Distinct Hepatitis B Virus Integrations With Implications on Host Gene Dysregulation. Gastroenterology 2022; 162:1160-1170.e1. [PMID: 34995536 DOI: 10.1053/j.gastro.2021.12.286] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 12/02/2021] [Accepted: 12/29/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Hepatocellular carcinogenesis of hepatitis B virus (HBV) infection may arise from integration of viral DNA into the host genome. We aimed to gauge the effect of viral inhibition on transcriptionally active HBV-host integration events and explore the correlation of viral integrations with host gene dysregulation. METHODS We leveraged data and biospecimens from an interventional trial, in which patients with HBV viremia above 2000 IU/mL and minimally raised serum liver enzyme were randomized to receive tenofovir disoproxil fumarate (TDF) or placebo for 3 years. Total RNA-sequencing was performed on paired liver biopsies taken before and after the 3-year intervention in 119 patients. Virus-host chimeric reads were captured to quantify the number of distinct viral integrations. Dysregulation of a host gene disrupted by viral integration was defined by aberrant expression >2 standard deviations away from samples without viral integration. RESULTS The TDF (n = 64) and placebo groups (n = 55) were comparable at baseline. Expressed viral integrations were detected in all pre- and posttreatment samples. The number of distinct viral integrations significantly correlated with circulatory biomarkers indicative of viral activities including HBV DNA, RNA, and viral antigens (P < .0003 for all correlations). Moreover, TDF vs placebo achieved a significantly greater reduction in distinct viral integrations, with 3.28-fold and 1.81-fold decreases in the expressed integrations per million reads, respectively (analysis of covariance, P = .037). Besides, viral integrations significantly correlated with host gene dysregulation. CONCLUSION Inhibition of viral replication reduces the number of transcriptionally active distinct HBV-host DNA integrations in patients with substantial viremia. Given the mutagenic potentials of viral integrations, such treatment effects should be considered in patient management.
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Affiliation(s)
- Yao-Chun Hsu
- Division of Gastroenterology and Hepatology, E-Da Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan; Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan; Division of Gastroenterology and Hepatology, Fu-Jen Catholic University Hospital, New Taipei, Taiwan
| | - Vithika Suri
- Gilead Sciences Inc., Foster City, California, USA
| | - Mindie H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA; Department of Epidemiology and Population Health, Stanford University Medical Center, Palo Alto, California, USA
| | - Yen-Tsung Huang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Chi-Yi Chen
- Division of Gastroenterology and Hepatology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - I-Wei Chang
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Clinical Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Cheng-Hao Tseng
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan; Division of Gastroenterology and Hepatology, E-Da Cancer Hospital, Kaohsiung, Taiwan
| | - Chun-Ying Wu
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan; Division of Translational Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jaw-Town Lin
- Division of Gastroenterology and Hepatology, E-Da Hospital, Kaohsiung, Taiwan
| | - David Z Pan
- Gilead Sciences Inc., Foster City, California, USA
| | - Anuj Gaggar
- Gilead Sciences Inc., Foster City, California, USA
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Choi YJ, Lee A, Kim TJ, Jin HT, Seo YB, Park JS, Lee SJ. E2/E6 ratio and L1 immunoreactivity as biomarkers to determine HPV16-positive high-grade squamous intraepithelial lesions (CIN2 and 3) and cervical squamous cell carcinoma. J Gynecol Oncol 2018; 29:e38. [PMID: 29400024 PMCID: PMC5920222 DOI: 10.3802/jgo.2018.29.e38] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 11/24/2017] [Accepted: 01/26/2018] [Indexed: 02/07/2023] Open
Abstract
Objective Human papillomavirus (HPV) 16 is the most carcinogenic HPV genotype. We investigated if HPV16 L1 capsid protein and E2/E6 ratio, evaluated by cervical cytology, may be used as biomarkers of ≥cervical intraepithelial neoplasia (CIN) 2 lesions. Methods Cervical specimens were obtained from 226 patients with HPV16 single infection. Using cytology specimen, L1 capsid protein and E2/E6 ratio were detected and the results were compared with those of the conventional histologic analysis of cervical tissues (CIN1–3 and squamous cell carcinoma [SCC]) to evaluate the association. Results The L1 positivity of CIN2/3 was significantly lower than that of normal cervical tissue (p<0.001) and SCC demonstrated significantly lower L1 positivity than CIN1 (p<0.001). The mean E2/E6 ratios of specimens graded as SCC (0.356) and CIN2/3 (0.483) were significantly lower than those of specimens graded as CIN1 (0.786) and normal (0.793) (p<0.05). We observed that area under the receiver operating characteristic curve (AUC) for E2/E6 ratio (0.844; 95% confidence interval [CI]=0.793–0.895) was higher than that for L1 immunochemistry (0.636; 95% CI=0.562–0.711). A combination of E2/E6 ratio and L1 immunocytochemistry analyses showed the highest AUC (0.871; 95% CI=0.826–0.917) for the prediction of ≥CIN2 lesions. Conclusion To our knowledge, this is the first study to validate HPV L1 capsid protein expression and decreased HPV E2/E6 ratio as valuable predictive markers of ≥CIN2 cervical lesions. Cervical cytology may be analyzed longitudinally on an outpatient basis with noninvasive procedures as against invasive conventional histologic analysis.
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Affiliation(s)
- Youn Jin Choi
- Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ahwon Lee
- Department of Hospital Pathology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Tae Jung Kim
- Department of Hospital Pathology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyun Tak Jin
- Research Institute, SL BIGEN, Inc., Korea Bio Park, Seongnam, Korea
| | - Yong Bok Seo
- Research Institute, SL BIGEN, Inc., Korea Bio Park, Seongnam, Korea
| | - Jong Sup Park
- Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sung Jong Lee
- Department of Obstetrics and Gynecology, St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea.
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