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Takahashi H, Kanda T, Matsumoto N, Shibata T, Nirei K, Tamura A, Matsuoka S, Kuroda K, Moriyama M. Analysis of full-length hepatitis B virus genome from chronic hepatitis B-patients with higher alanine aminotransferase elevation. Future Virol 2020. [DOI: 10.2217/fvl-2020-0104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background & aim: Higher elevation of alanine aminotransferase (ALT) occasionally leads to severe outcomes in hepatitis B virus (HBV)-infected patients. Our aim is to investigate the HBV sequence mutations associated with higher ALT elevation. Materials & methods: We analyzed full-length HBV sequences from patients with or without higher ALT elevation. Results: Nucleotide mutations in precore and core regions, which are associated with severe hepatitis B, were found in two HBV-infected patients with higher ALT elevation. Amino acid mutations within the pre-S1, pre-S2 and S regions were also found in a patient with HBV virologic breakthrough during the use of nucleoside analogs. Conclusion: It may be useful for HBV-infected patients with higher ALT elevation to analyze full-length HBV genome.
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Affiliation(s)
- Hiroshi Takahashi
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Tatsuo Kanda
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Naoki Matsumoto
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Toshikatsu Shibata
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Kazushige Nirei
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Akinori Tamura
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Shunichi Matsuoka
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Kazumichi Kuroda
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Mitsuhiko Moriyama
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30–1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
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Liu H, Shen L, Zhang S, Wang F, Zhang G, Yin Z, Qiu F, Liang X, Wang F, Bi S. Complete genome analysis of hepatitis B virus in Qinghai-Tibet plateau: the geographical distribution, genetic diversity, and co-existence of HBsAg and anti-HBs antibodies. Virol J 2020; 17:75. [PMID: 32532295 PMCID: PMC7291583 DOI: 10.1186/s12985-020-01350-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 06/03/2020] [Indexed: 12/17/2022] Open
Abstract
Background The genetic variation and origin of Hepatitis B Virus (HBV) in Qinghai-Tibet Plateau were poorly studied. The coexistence of HBsAg and anti-HBs has been described as a puzzle and has never been reported in the indigenous population or in recombinant HBV sequences. This study aimed to report geographical distribution, genetic variability and seroepidemiology of HBV in southwest China. Methods During 2014–2017, 1263 HBsAg positive serum were identified and 183 complete genome sequences were obtained. Serum samples were collected from community-based populations by a multistage random sampling method. Polymerase chain reaction (PCR) was used to amplify the HBV complete genome sequences. Then recombination, genetic variability, and serological analysis were performed. Results (1) Of the 1263 HBsAg positive serum samples, there were significant differences between the distribution of seromarkers in Tibet and Qinghai. (2) Of 183 complete genome sequences, there were 130 HBV/CD1 (71.0%), 49 HBV/CD2 (26.8%) and four HBV/C2 isolates (2.2%). Serotype ayw2 (96.1%) was the main serological subtype. (3) Several nucleotide mutations were dramatically different in CD1 and CD2 sequences. Clinical prognosis-related genetic variations such as nucleotide mutation T1762/A1764 (27.93%), A2189C (12.85%), G1613A (8.94%), T1753C (8.38%), T53C (4.47%) T3098C (1.68%) and PreS deletion (2.23%) were detected in CD recombinants. (4) From the inner land of China to the northeast boundary of India, different geographical distributions between CD1 and CD2 were identified. (5) Twenty-seven (2.14%) HBsAg/HBsAb coexistence serum samples were identified. S protein amino acid mutation and PreS deletion were with significant differences between HBsAg/HBsAb coexistence group and control group. Conclusions HBV/CD may have a mixed China and South Asia origin. Based on genetic variations, the clinical prognosis of CD recombinant seems more temperate than genotype C strains in China. The HBsAg/HBsAb coexistence is a result of both PreS deletion and aa variation in S protein. Several unique mutations were frequently detected in HBV/CD isolates, which could potentially influence the clinical prognosis.
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Affiliation(s)
- He Liu
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changbai Rd 155#, Changping District, Beijing, China.,Department of Infectious Disease, Tianjin Center for Disease Control and Prevention, Tianjin, People's Republic of China
| | - Liping Shen
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changbai Rd 155#, Changping District, Beijing, China
| | - Shuang Zhang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changbai Rd 155#, Changping District, Beijing, China
| | - Feng Wang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changbai Rd 155#, Changping District, Beijing, China
| | - Guomin Zhang
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Zundong Yin
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Feng Qiu
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changbai Rd 155#, Changping District, Beijing, China
| | - Xiaofeng Liang
- Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Fuzhen Wang
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Shengli Bi
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changbai Rd 155#, Changping District, Beijing, China.
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Gauder C, Mojsiejczuk LN, Tadey L, Mammana L, Bouzas MB, Campos RH, Flichman DM. Role of viral load in Hepatitis B virus evolution in persistently normal ALT chronically infected patients. INFECTION GENETICS AND EVOLUTION 2018; 67:17-22. [PMID: 30393187 DOI: 10.1016/j.meegid.2018.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/10/2018] [Accepted: 10/23/2018] [Indexed: 01/02/2023]
Abstract
Chronic HBV infection has been associated with severe liver disease although most of them do not progress to this stage. Even though low replicative carriers form the largest group of HBV chronically infected patients, there is a paucity of longitudinal studies to evaluate the molecular evolution of the whole genome in this subset of patients. In this study, longitudinal samples from 10 patients with persistently normal ALT levels were collected. HBV full-length genome sequences were obtained from 3 samples per patient (baseline, 5 and 10-years of follow-up). Patients were grouped according to HBV-DNA level into <103 IU/ml (group A) or > 103 IU/ml (group B). The substitution rate was inversely related with HBV-DNA levels. Moreover, the rate in the 10-year follow-up was significantly higher in group A (6.9 × 10-4 ± 1.3 × 10-4) than group B (2.7 × 10-4 ± 7.4 × 10-5 substitution/site/year, p < .001). Most of the substitutions were in the Core region and the majority were non-synonymous changes. The rate of nucleotide substitution was inversely related to HBV-DNA levels, highlighting the role of viral load in the HBV intra-host dynamics, even in low replicative state patients. Moreover, the difference in the substitution rate between the analysed groups was mainly consequence of substitutions restricted to the Core region, particularly in the simple coding region and antigenic epitopes, which suggest that the immune pressure drives the different evolutionary behaviour of groups.
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Affiliation(s)
- C Gauder
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Virología, Junín 956 4to piso, Ciudad Autónoma de Buenos Aires, Argentina
| | - L N Mojsiejczuk
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Virología, Junín 956 4to piso, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - L Tadey
- Unidad de Virología Hospital F.J. Muñiz, Uspallata 2272, Ciudad Autónoma de Buenos Aires, Argentina
| | - L Mammana
- Unidad de Virología Hospital F.J. Muñiz, Uspallata 2272, Ciudad Autónoma de Buenos Aires, Argentina
| | - M B Bouzas
- Unidad de Virología Hospital F.J. Muñiz, Uspallata 2272, Ciudad Autónoma de Buenos Aires, Argentina
| | - R H Campos
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Virología, Junín 956 4to piso, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - D M Flichman
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Virología, Junín 956 4to piso, Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
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Yokosuka O, Kurosaki M, Imazeki F, Arase Y, Tanaka Y, Chayama K, Tanaka E, Kumada H, Izumi N, Mizokami M, Kudo M. Management of hepatitis B: Consensus of the Japan Society of Hepatology 2009. Hepatol Res 2011; 41:1-21. [PMID: 21070536 DOI: 10.1111/j.1872-034x.2010.00739.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Recently, much progress has been made in the field of hepatitis B, such as natural history of the disease in relation to the amount of hepatitis B virus (HBV) DNA, genotypes of HBV influencing the natural course and treatment effects, mutations of HBV influencing the severity of the disease and development of hepatocellular carcinoma, and antiviral treatment such as nucleos(t)ide analogues and pegylated interferon. To make the consensus for the diagnosis, management and treatment of hepatitis B, a meeting was held during 45th annual meeting of Japan Society of Hepatology (JSH) in June 2009. In the meeting, recommendations and informative statements were discussed on the following subjects: (i) natural history of HBV infection; (ii) clinical implication of HBV genotypes; (iii) HBV mutations and their potential impact on pathogenesis of HBV infection; (iv) indications for antiviral treatment of chronic hepatitis B; (v) nucleos(t)ide analogues for chronic hepatitis B; and (vi) interferon therapy for chronic hepatitis B. The presenters reviewed the data on these subjects and proposed the consensus statements and recommendations. These statements were discussed among the organizers and presenters, and were approved by the participants of the meeting. In the current report, the relevant data were reviewed and the 12 consensus statements and nine recommendations on chronic hepatitis B were described.
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Affiliation(s)
- Osamu Yokosuka
- Department of Medicine and Clinical Oncology, Postgraduate School of Medicine, Chiba University, Japan
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Ohkawa K, Takehara T, Tatsumi T, Ishida H, Deguchi M, Kagita M, Hosui A, Miyagi T, Katayama K, Hayashi N. Alterations in hepatitis B virus nucleotide sequences in a chronic virus carrier from immunotolerant to immunoactive phase. Biochem Biophys Res Commun 2010; 394:574-80. [DOI: 10.1016/j.bbrc.2010.03.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2010] [Accepted: 03/04/2010] [Indexed: 12/23/2022]
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