1
|
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.
Collapse
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
| |
Collapse
|
2
|
Abstract
This study aimed to evaluate medication adherence and associated factors among patients with chronic viral hepatitis. A cross-sectional questionnaire survey was conducted in 171 outpatients receiving antiviral treatment of chronic viral hepatitis at 6 national/regional liver disease treatment centers in Japan. Medication adherence was calculated as the subject-reported number of antiviral tablets taken in the past 2 weeks compared with the prescribed number of tablets. Subjects were divided according to 100% adherence or nonadherence. The impact of items pertaining to everyday experiences and perceptions regarding medication adherence were examined. Factors associated with medication adherence were identified via multiple logistic regression. The mean medication adherence rate was 95.8% ± 9.5% (range = 0%-100%), although a smaller proportion (95 subjects; 55.6%) was 100% adherent. Multiple logistic regression indicated a greater "lack of understanding of need for medication" (1 point: odds ratio (OR) = 1.51, 95% confidence interval (CI) [1.30, 1.76], p ≤ .01) and greater "restriction in life due to medication" (1 point: OR = 1.26, 95% CI [1.03, 1.54], p = 0.03) as associated with nonadherence. In conclusion, to improve medication adherence, healthcare professionals should improve patients' understanding of the need for medication and minimization of life restrictions.
Collapse
|
3
|
Long JD, Rutledge SM, Sise ME. Autoimmune Kidney Diseases Associated with Chronic Viral Infections. Rheum Dis Clin North Am 2018; 44:675-698. [PMID: 30274630 DOI: 10.1016/j.rdc.2018.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Autoimmune kidney diseases triggered by viruses are an important cause of kidney disease in patients affected by chronic viral infection. Hepatitis B virus (HBV) infection is associated with membranous nephropathy and polyarteritis nodosa. Hepatitis C virus (HCV) infection is a major cause of cryoglobulinemic glomerulonephritis. Patients with human immunodeficiency virus (HIV) may develop HIV-associated nephropathy, a form of collapsing focal segmental glomerulosclerosis, or various forms of immune-complex-mediated kidney diseases. This article summarizes what is known about the pathogenesis, diagnosis, and management of immune-mediated kidney diseases in adults with chronic HBV, HCV, and HIV infections.
Collapse
Affiliation(s)
- Joshua D Long
- Department of Medicine, Division of Nephrology, Massachusetts General Hospital, 55 Fruit Street, GRB 7, Boston, MA 02114, USA
| | - Stephanie M Rutledge
- Department of Medicine, Division of Nephrology, Massachusetts General Hospital, 55 Fruit Street, GRB 7, Boston, MA 02114, USA
| | - Meghan E Sise
- Department of Medicine, Division of Nephrology, Massachusetts General Hospital, 55 Fruit Street, GRB 7, Boston, MA 02114, USA.
| |
Collapse
|
4
|
IL-1β/ATF3-mediated induction of Ski2 expression enhances hepatitis B virus x mRNA degradation. Biochem Biophys Res Commun 2018; 503:1854-1860. [PMID: 30055801 DOI: 10.1016/j.bbrc.2018.07.126] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/24/2018] [Indexed: 12/17/2022]
Abstract
Hepatitis B virus (HBV) -x protein is a transcriptional regulator required for the HBV life cycle. HBx also induces complications in the host such as hepatocellular carcinoma. We previously showed that HBx mRNA is degraded by the Ski2/RNA exosome complex. In the present study, we report the regulation of this system through the control of Ski2 expression. We identified interleukin (IL) -1β as an inducer of expression from the Ski2 promoter. IL-1β induced the expression of ATF3 transcription factor, which in turn binds to cyclic AMP-responsive element sequence in the Ski2 promoter and is responsible for Ski2 promoter induction by IL-1β. We previously reported that Ski2 expression increases HBx mRNA degradation; consistent with those data, we showed here that HBx mRNA is degraded in response to IL-1β treatment. Interestingly, HBx also significantly induced Ski2 expression. To our knowledge, this is the first report to show activation of the Ski2/RNA exosome complex by both the host and HBV. Understanding the regulation of the Ski2/RNA exosome system is expected to facilitate prevention of HBx-mediated complications through targeting the posttranscriptional degradation of HBx mRNA; and will also help shedding a light on the role of RNA decay systems in inflammation.
Collapse
|
5
|
Nishikawa H, Enomoto H, Iwata Y, Kishino K, Shimono Y, Hasegawa K, Nakano C, Takata R, Nishimura T, Yoh K, Ishii A, Aizawa N, Sakai Y, Ikeda N, Takashima T, Iijima H, Nishiguchi S. Clinical implication of serum Wisteria floribunda agglutinin positive Mac-2-binding protein level on hepatitis B e-antigen loss or seroconversion in hepatitis B e-antigen positive patients. Hepatol Res 2016; 46:1065-1073. [PMID: 26787135 DOI: 10.1111/hepr.12655] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 01/08/2016] [Accepted: 01/12/2016] [Indexed: 02/06/2023]
Abstract
AIM To examine the impact of pretreatment Wisteria floribunda agglutinin positive Mac-2-binding protein (WFA+ -M2BP) level on hepatitis B e-antigen (HBeAg) loss or HBeAg seroconversion (SC) for patients with nucleoside/nucleotide analog (NUC) therapy naive HBeAg positive chronic hepatitis B (CHB). METHODS A total of 57 patients were analyzed. All subjects were initially treated with NUC. We examined the impact of pretreatment WFA+ -M2BP level on HBeAg loss and HBeAg SC using univariate and multivariate analyses. RESULTS There were 36 men and 21 women (median age, 39 years). The WFA+ -M2BP cut-off index (COI) level ranged 0.43-12.9 (median, 1.55). WFA+ -M2BP level in patients with F3 or F4 was significantly higher than that with F0-F2. WFA+ -M2BP level in patients with A2 or 3 was significantly higher than that with A0 or 1. For all cases, the 1- and 3-year cumulative HBeAg loss rates were 10.5% and 34.4% and the corresponding cumulative HBeAg SC rates were 8.8% and 29.0%, respectively. In the multivariate analysis, in terms of HBeAg loss, pretreatment HBV DNA of 5 log copies/mL or more and pretreatment WFA+ -M2BP level of more than 1.55 COI tended to be significant factors linked to loss of HBeAg, while in terms of HBeAg SC, pretreatment HBV DNA of 5 log copies/mL or more was an independent predictor and pretreatment WFA+ -M2BP level of more than 1.55 COI tended to be a significant factor. CONCLUSION Pretreatment WFA+ -M2BP level may be a useful predictor for HBeAg loss or SC after NUC therapy for patients with HBeAg positive CHB.
Collapse
Affiliation(s)
- Hiroki Nishikawa
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Hirayuki Enomoto
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
| | - Yoshinori Iwata
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Kyohei Kishino
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Yoshihiro Shimono
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Kunihiro Hasegawa
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Chikage Nakano
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Ryo Takata
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Takashi Nishimura
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Kazunori Yoh
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Akiio Ishii
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Nobuhiro Aizawa
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Yoshiyuki Sakai
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Naoto Ikeda
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Tomoyuki Takashima
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Hiroko Iijima
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Shuhei Nishiguchi
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| |
Collapse
|
6
|
Aly HH, Suzuki J, Watashi K, Chayama K, Hoshino SI, Hijikata M, Kato T, Wakita T. RNA Exosome Complex Regulates Stability of the Hepatitis B Virus X-mRNA Transcript in a Non-stop-mediated (NSD) RNA Quality Control Mechanism. J Biol Chem 2016; 291:15958-74. [PMID: 27281821 DOI: 10.1074/jbc.m116.724641] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Indexed: 12/14/2022] Open
Abstract
Hepatitis B virus (HBV) is a stealth virus, minimally inducing the interferon system required for efficient induction of both innate and adaptive immune responses. However, 90% of acutely infected adults can clear the virus, suggesting the presence of other, interferon-independent pathways leading to viral clearance. Given the known ability of helicases to bind viral nucleic acids, we performed a functional screening assay to identify helicases that regulate HBV replication. We identified the superkiller viralicidic activity 2-like (SKIV2L) RNA helicase (a homolog of the Saccharomyces cerevisiae Ski2 protein) on the basis of its direct and preferential interaction with HBV X-mRNA. This interaction was essential for HBV X-mRNA degradation at the RNA exosome. The degradation of HBV X-mRNA at the RNA exosome was also mediated by HBS1L (HBS1-like translational GTPase) protein, a known component of the host RNA quality control system. We found that the redundant HBV-precore translation initiation site present at the 3'-end of HBV X-mRNA (3' precore) is translationally active. The initiation of translation from this site without a proper stop codon was identified by the non-stop-mediated RNA decay mechanism leading to its degradation. Although 3' precore is present in the five main HBV-RNA transcripts, only X-mRNA lacks the presence of an upstream start codons for large, middle, and small (L, M, and S) HBV surface proteins. These upstream codons are in-frame with 3' precore translation initiation site, blocking its translation from the other HBV-mRNA transcripts. To our knowledge, this is the first demonstration of the anti-viral function of the non-stop-mediated RNA decay mechanism.
Collapse
Affiliation(s)
- Hussein H Aly
- From the Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan,
| | - Junya Suzuki
- From the Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Koichi Watashi
- From the Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan, Department of Applied Biological Science, Tokyo University of Science, Noda 278-8510, Japan, Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Kazuaki Chayama
- Department of Gastroenterology and Metabolism, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan
| | - Shin-Ichi Hoshino
- Department of Biological Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya 467-8603, Japan, and
| | - Makoto Hijikata
- Laboratory of Human Tumor Viruses, Institute for Virus Research, Kyoto University, Kyoto 606-8507, Japan
| | - Takanobu Kato
- From the Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Takaji Wakita
- From the Department of Virology II, National Institute of Infectious Diseases, Tokyo 162-8640, Japan,
| |
Collapse
|
7
|
Inoue J, Kondo Y, Umetsu T, Yamamoto T, Miura M, Mano Y, Kobayashi T, Obara N, Niitsuma H, Kogure T, Nakagome Y, Kimura O, Iwata T, Morosawa T, Fujisaka Y, Shimosegawa T. Shifting hepatitis B virus genotypes of acute hepatitis B patients in northeast Japan. J Med Virol 2015; 88:69-78. [DOI: 10.1002/jmv.24309] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Jun Inoue
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Yasuteru Kondo
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Teruyuki Umetsu
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Takeshi Yamamoto
- Department of Gastroenterology; Tohoku Pharmaceutical University Hospital; Sendai Japan
| | - Masahito Miura
- Department of Gastroenterology; South Miyagi Medical Center; Miyagi Japan
| | - Yutaka Mano
- Department of Gastroenterology; Sendai Medical Center; Sendai Japan
| | - Tomoo Kobayashi
- Department of Hepatology; Tohoku Rosai Hospital; Sendai Japan
| | - Noriyuki Obara
- Department of Gastroenterology; Iwate Prefectural Central Hospital; Morioka Japan
| | - Hirofumi Niitsuma
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Takayuki Kogure
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Yu Nakagome
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Osamu Kimura
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Tomoaki Iwata
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Tatsuki Morosawa
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Yasuyuki Fujisaka
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - Tooru Shimosegawa
- Division of Gastroenterology; Tohoku University Graduate School of Medicine; Sendai Japan
| |
Collapse
|
8
|
Li MC, Chen PC, Tsai PC, Furue M, Onozuka D, Hagihara A, Uchi H, Yoshimura T, Guo YL. Mortality after exposure to polychlorinated biphenyls and polychlorinated dibenzofurans: a meta-analysis of two highly exposed cohorts. Int J Cancer 2015; 137:1427-32. [PMID: 25754105 DOI: 10.1002/ijc.29504] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 02/24/2015] [Indexed: 01/14/2023]
Abstract
Both Yucheng and Yusho were events of accidental exposure to highly doses of polychlorinated biphenyls and dibenzofurans in Asian people. Mortality experiences caused by various diseases were reported in both cohorts with similar and dissimilar findings. We thus conducted a meta-analysis of two cohorts to reevaluate the effects of PCBs and PCDFs on major causes of mortalities. Two recently updated Yucheng and Yusho mortality studies were included. For selected diseases, standardized mortality ratios (SMR) and 95% confidence intervals (95% CI) were extracted. Meta-analyses were conducted using a random-effects model only when heterogeneity (I(2) > 50% and/or p value <0.10 by the Q test) was not found. A total of 1,803 Yucheng subjects (male, N = 830; female, N = 973) with 48,751 person-years of follow-up and 1,664 Yusho subjects (male, N = 860; female, N = 804) with 50,773 person-years are included. An increase in all-cause mortality (pooled SMR=1.2, 95% CI: 1.1-1.3, I(2) = 0.0%), all cancers (pooled SMR=1.3, 95% CI: 1.1-1.6, I(2) = 0.0%), lung cancer (pooled SMR=1.7, 95% CI: 1.2-2.3, I(2) =0.0%), heart disease (pooled SMR=1.3, 95% CI: 1.0-1.7, I(2) = 43.4%) and hepatic disease (pooled SMR=1.9, 95% CI: 1.3-2.8, I(2) = 0.0%) were found in pooled males. Significant elevation from liver cancer was found in pooled females (pooled SMR=2.0, 95% CI: 1.1-3.6, I(2) = 0.0%). This meta-analysis of Yucheng and Yusho cohorts showed similar elevation from all cancer, lung cancer, heart disease and hepatic disease mortalities in exposed men. Furthermore, a new finding of elevated liver cancer mortality in exposed women was identified.
Collapse
Affiliation(s)
- Ming-Chieh Li
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University (NTU), Taipei, Taiwan
| | - Pau-Chung Chen
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University (NTU), Taipei, Taiwan.,Department of Environmental and Occupational Medicine, NTU College of Medicine and NTU Hospital, Taipei, Taiwan
| | - Pei-Chien Tsai
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Masutaka Furue
- Clinical and Research Center for Yusho and Dioxin, Kyushu University, Fukuoka, Japan
| | - Daisuke Onozuka
- Department of Health Care Administration and Management, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Akihito Hagihara
- Department of Health Care Administration and Management, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Hiroshi Uchi
- Clinical and Research Center for Yusho and Dioxin, Kyushu University, Fukuoka, Japan
| | - Takesumi Yoshimura
- Department of Food and Health Sciences, Fukuoka Women's University, Fukuoka, Japan
| | - Yue Leon Guo
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University (NTU), Taipei, Taiwan.,Department of Environmental and Occupational Medicine, NTU College of Medicine and NTU Hospital, Taipei, Taiwan
| |
Collapse
|
9
|
Ninomiya M, Kondo Y, Niihori T, Nagashima T, Kogure T, Kakazu E, Kimura O, Aoki Y, Matsubara Y, Shimosegawa T. Sequential analysis of amino acid substitutions with hepatitis B virus in association with nucleoside/nucleotide analog treatment detected by deep sequencing. Hepatol Res 2014; 44:678-84. [PMID: 23701433 DOI: 10.1111/hepr.12168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/14/2013] [Accepted: 05/20/2013] [Indexed: 02/08/2023]
Abstract
Taking nucleoside/nucleotide analogs is a major antiviral therapy for chronic hepatitis B infection. The problem with this treatment is the selection for drug-resistant mutants. Currently, identification of genotypic drug resistance is conducted by molecular cloning sequenced by the Sanger method. However, this methodology is complicated and time-consuming. These limitations can be overcome by deep sequencing technology. Therefore, we performed sequential analysis of the frequency of drug resistance in one individual, who was treated with lamivudine on-and-off therapy for 2 years, by deep sequencing. The lamivudine-resistant mutations at rtL180M and rtM204V and the entecavir-resistant mutation at rtT184L were detected in the first subject. The lamivudine- and entecavir-resistant strain was still detected in the last subject. However, in the deep sequencing analysis, rt180 of the first subject showed a mixture in 76.9% of the methionine and in 23.1% of the leucine, and rt204 also showed a mixture in 69.0% of the valine and 29.8% of the isoleucine. During the treatment, the ratio of resistant mutations increased. At rt184, the resistant variants were detectable in 58.7% of the sequence, with the replacement of leucine by the wild-type threonine in the first subject. Gradually, entecavir-resistant variants increased in 82.3% of the leucine in the last subject. In conclusion, we demonstrated the amino acid substitutions of the serial nucleoside/nucleotide analog resistants. We revealed that drug-resistant mutants appear unchanged at first glance, but actually there are low-abundant mutations that may develop drug resistance against nucleoside/nucleotide analogs through the selection of dominant mutations.
Collapse
Affiliation(s)
- Masashi Ninomiya
- Division of Gastroenterology, Tohoku University Hospital, Sendai, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Clinical features of adult patients with acute hepatitis B virus infection progressing to chronic infection. Int J Hepatol 2014; 2014:358206. [PMID: 25349743 PMCID: PMC4202240 DOI: 10.1155/2014/358206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 09/13/2014] [Indexed: 02/08/2023] Open
Abstract
Background. Information regarding the progression of acute hepatitis B virus (HBV) infection to chronic infection in adults is scarce. Methods. Twenty-five adult patients with acute HBV infection (14 men and 11 women, 18-84 years old), whose clinical features progressed to those of chronic infection (group A) or did not (group B), were studied retrospectively. Results. There were 3 and 22 patients in groups A and B, respectively. Two of the 3 patients of group A lacked the typical symptoms of acute hepatitis. No differences were found between groups with respect to age, sex, or HBV genotypes. However, total bilirubin and alanine aminotransaminase levels were significantly lower in group A. Conclusions. Three of the 25 adult patients with acute HBV infection progressed to chronic infection. Hepatitis was mild in these patients. Patients with mild acute hepatitis B or unapparent HBV infection may have a higher risk of progressing to chronic infection.
Collapse
|
11
|
Kurosaki M, Tsuchiya K, Nakanishi H, Itakura J, Izumi N. Serum HBV RNA as a possible marker of HBV replication in the liver during nucleot(s)ide analogue therapy. J Gastroenterol 2013; 48:777-8. [PMID: 23543314 DOI: 10.1007/s00535-013-0800-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 03/05/2013] [Indexed: 02/04/2023]
|
12
|
Nishida T, Hiramatsu N, Mizuki M, Nagatomo I, Kida H, Tazumi K, Shinzaki S, Miyazaki M, Yakushijin T, Tatsumi T, Iijima H, Kiso S, Kanto T, Tsujii M, Takehara T. Managing hepatitis B virus carriers with systemic chemotherapy or biologic therapy in the outpatient clinic. Hepatol Res 2013; 43:339-46. [PMID: 22882474 DOI: 10.1111/j.1872-034x.2012.01073.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AIM The number of outpatients receiving systemic chemotherapy in Japan has recently increased. We retrospectively examined whether hepatitis B virus (HBV) carriers were safely treated and managed with systemic chemotherapy or biologic agents as outpatients at our oncology center. METHODS A total of 40 115 consecutive infusion chemotherapy or biologic therapies were administrated to 2754 outpatients in the Chemotherapy and Oncology Center at Osaka University Hospital from December 2003 to March 2011. We first studied the prevalence of outpatients with hepatitis B surface antigen (HBsAg), and then retrospectively evaluated a database to determine the frequencies of testing for other HBV-related markers and the incidence of developing hepatitis or HBV reactivation in patients positive for HBsAg. As a control for comparison, we also examined these same factors in patients with hepatitis C virus antibody (anti-HCV). RESULTS The majority of physicians at our hospital screened for HBsAg (95%) and anti-HCV (94%) prior to administrating chemotherapy. Of the 2754 outpatients, 46 (1.7%) were positive for HBsAg and 90 (3.3%) were positive for anti-HCV. Fifteen patients that were HBsAg positive were treated with lamivudine or entecavir prior to chemotherapy. None of the patients with HBsAg taking a prophylactic antiviral developed hepatitis, and only one breast cancer patient without prophylactic antiviral treatment (1/31 [3.2%]) developed hepatitis due to HBV reactivation. CONCLUSION HBV reactivation occurred in outpatients without prophylactic antiviral treatment, but the incidence was relatively low.
Collapse
Affiliation(s)
- Tsutomu Nishida
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine Chemotherapy and Oncology Center, Osaka University Hospital, Osaka, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Igarashi T, Shimizu A, Igarashi T, Hanaoka K, Yoshizaki K, Shigemori T, Shimizu S, Komeichi H, Itoh Y. Seroconversion of Hepatitis B Envelope Antigen by Entecavir in a Child with Hepatitis B Virus-related Membranous Nephropathy. J NIPPON MED SCH 2013; 80:387-95. [DOI: 10.1272/jnms.80.387] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
| | - Akira Shimizu
- Department of Pathology (Analytic Human Pathology), Nippon Medical School
| | | | - Kazunari Hanaoka
- Division of Kidney and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine
| | | | | | - Shuji Shimizu
- Division of Cardiology, Hepatology, Geriatrics, and Integrated Medicine, Department of Internal Medicine, Graduate School of Medicine, Nippon Medical School
| | - Hirokazu Komeichi
- Division of Cardiology, Hepatology, Geriatrics, and Integrated Medicine, Department of Internal Medicine, Graduate School of Medicine, Nippon Medical School
| | | |
Collapse
|
14
|
Oketani M, Ido A, Uto H, Tsubouchi H. Prevention of hepatitis B virus reactivation in patients receiving immunosuppressive therapy or chemotherapy. Hepatol Res 2012; 42:627-36. [PMID: 22686858 DOI: 10.1111/j.1872-034x.2012.00998.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
With the increasing use of potent immunosuppressive therapy, reactivation of hepatitis B virus (HBV) in endemic regions is becoming a clinical problem requiring special attention. A recent annual nationwide survey clarified that HBV reactivation related to immunosuppressive therapy has been increasing in patients with malignant lymphoma, other hematological malignancies, oncological or rheumatological disease. In the survey, rituximab plus steroid-containing chemotherapy was identified as a risk factor for HBV reactivation in hepatitis B surface antigen (HBsAg) negative patients with malignant lymphoma. In this setting, HBV reactivation resulted in fatal fulminant hepatitis regardless of the treatment of nucleoside analog. The Intractable Hepatobiliary Disease Study Group and the Study Group for the Standardization of Treatment of Viral Hepatitis Including Cirrhosis jointly developed guidelines for preventing HBV reactivation. The essential features of the guideline are as follows. All patients should be screened for HBsAg by a sensitive method before the start of immunosuppressive therapy. Second, hepatitis B core antigen (HBcAb) and hepatitis B surface antibody (HBsAb) testing should be performed in HBsAg negative patients, especially those receiving intensive immunosuppressive therapy. Prophylaxis with nucleoside analogs is essential for preventing HBV reactivation in HBsAg positive patients. In contrast, HBsAg negative with HBcAb and/or HBsAb positive patients should be monitored monthly for an increase in serum HBV DNA during and 12 months after completion of chemotherapy. Nucleoside analogs should be administrated immediately when HBV DNA becomes positive during this period. This strategy facilitates commencement of nucleoside analogs at an early stage of HBV reactivation and results in prevention of severe hepatitis.
Collapse
Affiliation(s)
- Makoto Oketani
- Department of Digestive and Lifestyle-related Diseases, Health Research Course, Human and Environmental Sciences, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | | | | | | |
Collapse
|
15
|
Nishida N, Sawai H, Matsuura K, Sugiyama M, Ahn SH, Park JY, Hige S, Kang JH, Suzuki K, Kurosaki M, Asahina Y, Mochida S, Watanabe M, Tanaka E, Honda M, Kaneko S, Orito E, Itoh Y, Mita E, Tamori A, Murawaki Y, Hiasa Y, Sakaida I, Korenaga M, Hino K, Ide T, Kawashima M, Mawatari Y, Sageshima M, Ogasawara Y, Koike A, Izumi N, Han KH, Tanaka Y, Tokunaga K, Mizokami M. Genome-wide association study confirming association of HLA-DP with protection against chronic hepatitis B and viral clearance in Japanese and Korean. PLoS One 2012; 7:e39175. [PMID: 22737229 PMCID: PMC3380898 DOI: 10.1371/journal.pone.0039175] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 05/16/2012] [Indexed: 12/29/2022] Open
Abstract
Hepatitis B virus (HBV) infection can lead to serious liver diseases, including liver cirrhosis (LC) and hepatocellular carcinoma (HCC); however, about 85–90% of infected individuals become inactive carriers with sustained biochemical remission and very low risk of LC or HCC. To identify host genetic factors contributing to HBV clearance, we conducted genome-wide association studies (GWAS) and replication analysis using samples from HBV carriers and spontaneously HBV-resolved Japanese and Korean individuals. Association analysis in the Japanese and Korean data identified the HLA-DPA1 and HLA-DPB1 genes with Pmeta = 1.89×10−12 for rs3077 and Pmeta = 9.69×10−10 for rs9277542. We also found that the HLA-DPA1 and HLA-DPB1 genes were significantly associated with protective effects against chronic hepatitis B (CHB) in Japanese, Korean and other Asian populations, including Chinese and Thai individuals (Pmeta = 4.40×10−19 for rs3077 and Pmeta = 1.28×10−15 for rs9277542). These results suggest that the associations between the HLA-DP locus and the protective effects against persistent HBV infection and with clearance of HBV were replicated widely in East Asian populations; however, there are no reports of GWAS in Caucasian or African populations. Based on the GWAS in this study, there were no significant SNPs associated with HCC development. To clarify the pathogenesis of CHB and the mechanisms of HBV clearance, further studies are necessary, including functional analyses of the HLA-DP molecule.
Collapse
Affiliation(s)
- Nao Nishida
- Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Ichikawa, Chiba, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Quantification of hepatitis B surface antigen can help predict spontaneous hepatitis B surface antigen seroclearance. Eur J Gastroenterol Hepatol 2012; 24:414-8. [PMID: 22273987 DOI: 10.1097/meg.0b013e328350594d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIM The clinical outcomes of hepatitis B virus (HBV) carriers are favorable following hepatitis B surface antigen (HBsAg) seroclearance. The aim of this study was to investigate the clinical course of spontaneous HBsAg seroclearance and the factors predicting it. METHODS A total of 423 patients who tested positive for HBsAg and were referred to Chiba University Hospital between January 1985 and April 2008 were included in the study and the following characteristics were analyzed: age, sex, status of hepatitis B e antigen, alanine aminotransferase level, HBV DNA level, number of platelets, HBV genotype, past treatment with interferon, and HBsAg level. When a nucleotide analog was used for treatment, we stopped follow-up. Measurement of HBsAg was performed using the chemiluminescent enzyme immunoassay method and less than 0.03 IU/ml of HBsAg was designated as HBsAg seroclearance. RESULTS The study group included 239 men and 184 women and their average age was 40.5 ± 13.8 years. Twenty-five patients achieved HBsAg seroclearance during the follow-up period with an incidence rate of 0.97% per year. Multivariate analysis revealed that HBsAg titer (compared with patients with a low HBsAg level: odds ratio=0.45, 95% confidence interval: 0.29-0.70) at baseline was the only predictive factor for HBsAg seroclearance. CONCLUSION HBsAg seroclearance occurred at a frequency of 0.97% per year without the use of a nucleotide analog. HBsAg titer at baseline was the only predictive factor for HBsAg seroclearance.
Collapse
|
17
|
Marignani M, Gigante E, Begini P, Marzano A, di Fonzo M, Deli I, Gallina S, Cox MC, Delle Fave G. Patients with hematological malignancies and serological signs of prior resolved hepatitis B. World J Gastrointest Oncol 2012; 4:37-45. [PMID: 22468182 PMCID: PMC3312927 DOI: 10.4251/wjgo.v4.i3.37] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 10/04/2011] [Accepted: 10/12/2011] [Indexed: 02/05/2023] Open
Abstract
Hepatitis B virus (HBV) infection affects a large part of the world population. Within the different virological HBV categories that have been identified, patients with occult HBV infection represent a peculiar group. These individuals harbor a replication competent virus, inhibited in its replicative function. Accordingly, cases of reactivations have been observed in immunosuppressed individuals who lose immunological control over the infection. Patients with hematological malignancies (HM) are treated with intense myelo- and immunosuppressive chemotherapy regimens which favor HBV reactivation. This event can have severe consequences, such as hepatitis flare, hepatic failure and even death. In addition, it can lead to delays or interruptions of curative treatments, resulting in a decreased disease free and overall survival. In this review, we will examine the event of HBV reactivation in patients with signs of resolved HBV infection undergoing treatment for HM and propose possible management strategies.
Collapse
Affiliation(s)
- Massimo Marignani
- Massimo Marignani, Elia Gigante, Paola Begini, Michela di Fonzo, Ilaria Deli, Sara Gallina, Gianfranco Delle Fave, Digestive and Liver Disease Department, School of Medicine and Psychology University "Sapienza", Azienda Ospedaliera S. Andrea, Via Grottarossa, 1035-1039, 00189 Rome, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Abstract
Recently antiviral therapies for chronic hepatitis B using nucleos(t)ide analogues have become standard treatment modalities on the basis of several independent guidelines, starting with those of the American Association for the Study of Liver Diseases (AASLD) and other such organizations and bodies, including the European Association for the Study of the Liver (EASL), the Asian Pacific Association for the Study of the Liver (APASL), and the Japanese Ministry of Health, Labour and Welfare (MHLW)'s research team. The philosophies underlying such treatment strategies are considered basically equivalent. MHLW's guidelines define subjects for medical intervention to be cases measuring alanine aminotransferase (ALT) ≥31 IU/L, with serological hepatitis B virus (HBV) DNA level ≥5 log copies/mL for hepatitis B e antigen (HBeAg)-positive cases, and serological HBV DNA level ≥4 log copies/mL for HBeAg-negative cases. These Japanese guidelines advocate entecavir as the first-line treatment option for nucleos(t)ide-naïve patients, and combination treatment of lamivudine and adefovir as the basis of treatment for patients with lamivudine- and/or entecavir-resistant viruses. Of particular note for patients undergoing lamivudine treatment with persistent HBV DNA level < 2.1 log copies/mL is the recommendation of a switch to entecavir. Early detection of drug-resistant virus is desirable after initiation of nucleos(t)ide analogue treatment, but such a procedure is not uniformly available at all medical institutions. Nevertheless, timely estimation of potential early-stage drug-resistant virus development is crucial for getting a head start on treatment. HBV core-related antigen (HBcrAg) level or HBV DNA level are considered useful markers for the appearance of such drug-resistant viruses.
Collapse
Affiliation(s)
- Waka Ohishi
- Department of Clinical Studies, Radiation Effects Research Foundation Department of Medicine and Molecular Science, Division of Frontier Medical Science, Programs for Biomedical Research, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | | |
Collapse
|
19
|
Matsumoto A, Tanaka E, Suzuki Y, Kobayashi M, Tanaka Y, Shinkai N, Hige S, Yatsuhashi H, Nagaoka S, Chayama K, Tsuge M, Yokosuka O, Imazeki F, Nishiguchi S, Saito M, Fujiwara K, Torii N, Hiramatsu N, Karino Y, Kumada H. Combination of hepatitis B viral antigens and DNA for prediction of relapse after discontinuation of nucleos(t)ide analogs in patients with chronic hepatitis B. Hepatol Res 2012; 42:139-49. [PMID: 22103237 DOI: 10.1111/j.1872-034x.2011.00910.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIM The factors associated with hepatitis recurrence after discontinuation of nucleos(t)ide analogs (NAs) in patients with chronic hepatitis B were analyzed to predict the risk of relapse more accurately. METHODS A total of 126 patients who discontinued NA therapy were recruited retrospectively. The clinical conditions of a successful discontinuation were set as alanine aminotransferase (ALT) below 30 IU/L and serum hepatitis B virus (HBV) DNA below 4.0 log copies/mL. RESULTS Relapse of hepatitis B were judged to occur when maximal serum ALT became higher than 79 IU/L or when maximal serum HBV DNA surpassed 5.7 log copies/mL following NA discontinuation since these values corresponded with mean values of ALT (30 IU/L) and HBV DNA (4.0 log copies/mL), respectively. At least 90% of patients with either detectable hepatitis B e antigen or serum HBV DNA higher than 3.0 log copies/mL at the time of NA discontinuation relapsed within one year. In the remaining patients, higher levels of both hepatitis B surface and core-related antigens at the time of discontinuation, as well as a shorter course of NA treatment, were significantly associated with relapse by multivariate analysis. CONCLUSIONS It appears that negative results for hepatitis B e antigen and serum HBV DNA lower than 3.0 log copies/mL are essential for successful NA discontinuation, which may be attained by a longer treatment period. Levels of hepatitis B surface and core-related antigens are also significant factors independently associated with relapse of hepatitis.
Collapse
Affiliation(s)
- Akihiro Matsumoto
- Department of Medicine, Shinshu University School of Medicine, Matsumoto Department of Hepatology, Toranomon Hospital Department of Internal Medicine and Gastroenterology, Tokyo Women's Medical University, Tokyo Department of Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences Gastroenterology Section, Nagoya Daini Red Cross Hospital, Nagoya Department of Gastroenterology and Hepatology, Graduate School of Medicine, Hokkaido University Department of Gastroenterology, Sapporo Kosei General Hospital, Sapporo The Clinical Research Center, NHO Nagasaki Medical Center, Omura Program for Biomedical Research, Division of Frontier Medical Science, Department of Medicine and Molecular Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima Department of Medicine and Clinical Oncology, Graduate School of Medicine, Chiba University, Chiba Division of Hepatobiliary and Pancreatic Diseases, Department of Internal Medicine, Hyogo College of Medicine, Hyogo Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Shimomura S, Nishiguchi S. Anticarcinogenic impact of interferon therapy on the progression of hepatocellular carcinoma in patients with chronic viral infection. Hepatol Res 2012; 42:22-32. [PMID: 21951512 DOI: 10.1111/j.1872-034x.2011.00889.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is mainly caused by a persistent infection due to the hepatitis B or hepatitis C virus. The number of HCC cases is increasing in Asian and African countries, as well as in European and American countries. Interferon (IFN) therapy, used for type B chronic liver diseases, inhibits hepatic carcinogenesis in patients with compensated cirrhosis. However, there is insufficient evidence that IFN therapy inhibits hepatic carcinogenesis in patients with chronic hepatitis B. There are few cases of HCC due to chronic hepatitis B, and long-term follow-up periods verifying the inhibitory effect of IFN on hepatic carcinogenesis have not been obtained. To improve the prognosis of type B chronic liver diseases, it is important that hepatitis treatment follows guidelines in which a patient's age and the extent of hepatic fibrosis are taken into account. As for chronic hepatitis C, since a sustained virological response (SVR) in IFN therapy inhibits hepatic carcinogenesis and improves prognosis, treatment that aims for an SVR while taking into consideration host-sided and virus-sided factors is recommended for patients with type C chronic liver diseases. In areas with low incidence of HCC (e.g. USA), a large number of cases and a long-term follow-up period are needed before it can be accepted that IFN therapy inhibits hepatic carcinogenesis. After locally curative treatment of HCC, IFN therapy suppresses recurrence and improves survival rates.
Collapse
Affiliation(s)
- Soji Shimomura
- Division of Hepatobiliary and Pancreatic disease, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | | |
Collapse
|