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Husseini AA, Islam Saeed KM, Yurdcu E, Bozdayı AM. Molecular epidemiology of Hepatitis B virus, Hepatitis C virus, and Hepatitis D virus in general population of Afghanistan. TURKISH JOURNAL OF GASTROENTEROLOGY 2020; 31:658-666. [PMID: 33090103 DOI: 10.5152/tjg.2020.19169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND/AIMS This study gives a clue about genotypes, subgenotypes and subtypes of HBV, HCV and HDV viruses in general population of Afghanistan. MATERIALS AND METHODS A total of 234 HBsAg, 44 anti-HCV and 5 Anti-Delta positive patients belong to 25-70 age group were obtained through a rapid screening test among 5898 residents of Afghanistan. After quantifying viral load, genotyping of 61 HBV, 29 HCV and 1 HDV samples were accomplished by sequencing of a segment of the HBV Pre S, HCV NS5B, and HDV Delta antigen regions respectively. Clinically important variants of the HBV polymerase gene, the "a" determinant of HBsAg, HCV NS5B and NS3 regions were assessed. RESULTS All HBV isolates were dispersed throughout the genotype D branch and ayw2 was the only subtypes found. The anti-HDV prevalence among HBsAg positive individuals was 2.2% and the single HDV sample, belonged to HDV genotype I. Analysis of HCV isolates revealed subtype HCV-1b in 75.86%, HCV-3a in 20.69% and HCV-3b in 3.44% patients. The observed mutant variants in the MHR of HBsAg were Y100 15%, Q101 5%, G102 15%, T115 45%, P120 5%, T131 5%. Likewise, S213T 10%, Q215P 5% and N248H 100% mutations were detected in the HBV polymerase region. C316N mutation was prevalent in 72.7% of HCV 1b participants. CONCLUSION Genotypic variation in Afghan patients is in line with the ones existing in neighboring countries and regions. HBV genotypes D1, subtype ayw2, HDV RNA type I, and HCV RNA genotype 1b are likely to be dominant in Afghan patients.
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Affiliation(s)
- Abbas Ali Husseini
- Institute of Hepatology, Ankara University School of Medicine, Ankara, Turkey
| | - Khwaja Mir Islam Saeed
- Grant and Service Contract Management Unit (GCMU), Ministry of Public Health, Kabul, Afghanistan
| | - Esra Yurdcu
- Institute of Hepatology, Ankara University School of Medicine, Ankara, Turkey
| | - A Mithat Bozdayı
- Institute of Hepatology, Ankara University Faculty of Medicine, Ankara, Turkey
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2
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Wahyuni RM, Utsumi T, Juniastuti, Yano Y, Murti IS, Amin M, Yamani LN, Istimagfiroh A, Purwono PB, Soetjipto, Lusida MI, Hayashi Y. Analysis of hepatitis B virus genotype and gene mutation in patients with advanced liver disease in East Kalimantan, Indonesia. Biomed Rep 2019; 10:303-310. [PMID: 31086664 PMCID: PMC6489537 DOI: 10.3892/br.2019.1202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/12/2019] [Indexed: 12/18/2022] Open
Abstract
Liver cirrhosis (LC) and hepatocellular carcinoma (HCC) are life-threatening conditions frequently associated with chronic hepatitis B virus (HBV) infection in Asian countries, including Indonesia. HBV genotypes and several specific mutations are associated with disease progression. To clarify the geographical variation in viral characteristics, HBV genotypes and gene mutations were investigated in patients with advanced liver disease (ALD) in Samarinda, East Kalimantan, Indonesia. Sera were collected from 41 patients with ALD at Abdul Wahab Sjahranie Hospital and HBV carriers from Red Cross Center blood bank in Samarinda, and screened for hepatitis B surface antigen and hepatitis B e-antigen. Liver function data were obtained from the medical records from each patient. HBV genotype and gene mutations were determined by polymerase chain reaction sequencing. Analysis of HBV isolates indicated that genotype B was the most frequent genotype, at 85.4 and 97.8%, followed by C, at 14.6 and 2.2%, in patients with ALD and in HBV carriers, respectively. The C1505A mutation in X region, T1753V and A1762T/G1764A mutations in the basal core promoter region and C1858T in precore (PC) region were frequent and only detected in patients with ALD (28.9, 40, 73.5 and 17.6%, respectively), whereas the G1896A mutation in the PC region was frequently detected in HBV carriers. The presence of HBV genotype B and certain HBV gene mutations were characteristic of patients with ALD in East Kalimantan.
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Affiliation(s)
- Rury Mega Wahyuni
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
| | - Takako Utsumi
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Juniastuti
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
- Department of Microbiology, Faculty of Medicine, Airlangga University, Campus A, Surabaya 60131, Indonesia
| | - Yoshihiko Yano
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Ignatia Sinta Murti
- Department of Internal Medicine, Faculty of Medicine, Mulawarman University, Samarinda 75119, Indonesia
| | - Mochamad Amin
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
| | - Laura Navika Yamani
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
- Department of Epidemiology, Faculty of Public Health, Airlangga University, Campus C, Surabaya 60115, Indonesia
| | - Anittaqwa Istimagfiroh
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
| | - Priyo Budi Purwono
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
- Department of Microbiology, Faculty of Medicine, Airlangga University, Campus A, Surabaya 60131, Indonesia
| | - Soetjipto
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
- Department of Biochemistry, Faculty of Medicine, Airlangga University, Campus A, Surabaya 60131, Indonesia
| | - Maria Inge Lusida
- Indonesia-Japan Collaborative Research Center for Emerging and Re-emerging Infectious Diseases, Institute of Tropical Disease, Airlangga University, Campus C, Surabaya 60115, Indonesia
- Department of Microbiology, Faculty of Medicine, Airlangga University, Campus A, Surabaya 60131, Indonesia
| | - Yoshitake Hayashi
- Center for Infectious Diseases, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
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3
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Gu Y, Lian Y, Gu L, Chen L, Li X, Zhou L, Huang Y, Wang J, Huang Y. Correlations between cytokines produced by T cells and clinical-virological characteristics in untreated chronic hepatitis B patients. BMC Infect Dis 2019; 19:216. [PMID: 30832595 PMCID: PMC6398217 DOI: 10.1186/s12879-019-3853-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 02/26/2019] [Indexed: 12/13/2022] Open
Abstract
Background Hepatitis B virus (HBV) replicates non-cytopathically in the hepatocytes and HBV-related diseases are caused by immune-mediated inflammatory events. This study aimed to identify the relationship between clinical-virological characteristics and immunity in untreated chronic hepatitis B (CHB) patients. Methods A total of 209 CHB patients were categorized into immune tolerant (IT, n = 17), inactive carrier (IC, n = 20), immune active (IA, n = 120), and gray zone (GZ, n = 72) phases. The quantitative hepatitis B surface antigen (qHBsAg), hepatitis B e antigen (HBeAg), anti-HBeAg (HBeAb), HBV genotype, viral mutant and frequencies of interleukin (IL)-4, IL-17, IL-10 and interferon-gamma (IFN-γ) produced by CD4+ and CD8+ T cells were tested. We also correlated these cytokines with clinical-virological characteristics using a linear regression model. Results CD8+ T cells frequency were significantly decreased in IT patients. Levels of CD4+ T cells IL-4+ or IL-10+ were strongly negatively associated with qHBsAg titers. The frequency of IFN-γ produced by CD4+ and CD8+ T cells showed significant positive association with age and alanine aminotransferase (ALT) level, while that had negative association with qHBsAg titers. Additionally, the ratios of mutations in the HBV precore (PC) stop codon and basal core promoter (BCP) and the combined mutations were 32.5, 27.2, and 11.3%, respectively. The frequency of CD4+ T cells IL-17+ was higher in patients with a PC mutation than that in patients carrying a wild-type sequence. Finally, little associations among T cell derived IL-4, IL-10, IL-17, and IFN-γ was observed in the current untreated CHB cohort. Conclusions Several components of the immune system were correlated with HBV factors that influence an inflammatory process during CHB. Of particular relevance are the significant associations of between CD4+ T cells IL-4+ and qHBsAg level, and between CD4+ T cells IL-17+ and the presence of a mutation in PC.
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Affiliation(s)
- Yurong Gu
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tian He Rd., Guangzhou, 510630, China
| | - Yifan Lian
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lin Gu
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lubiao Chen
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tian He Rd., Guangzhou, 510630, China
| | - Xiaoyan Li
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tian He Rd., Guangzhou, 510630, China
| | - Liang Zhou
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tian He Rd., Guangzhou, 510630, China
| | - Yanlin Huang
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tian He Rd., Guangzhou, 510630, China
| | - Jialiang Wang
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yuehua Huang
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tian He Rd., Guangzhou, 510630, China. .,Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
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Upregulation of kinesin family member 4A enhanced cell proliferation via activation of Akt signaling and predicted a poor prognosis in hepatocellular carcinoma. Cell Death Dis 2018; 9:141. [PMID: 29396392 PMCID: PMC5833581 DOI: 10.1038/s41419-017-0114-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/21/2017] [Accepted: 10/30/2017] [Indexed: 02/07/2023]
Abstract
Hepatocellular carcinoma (HCC) is the third most frequent cause of cancer-related death worldwide, and the molecular pathogenesis and development of HCC are largely unknown. In the present study, we found that KIF4A expression was upregulated in HCC (678 samples, P = 2.03E-8) based on a meta-analysis of Oncomine database. We further confirmed that both KIF4A mRNA and protein expressions were overexpressed in human HCC tumour tissues as well as cancer cell lines. Higher KIF4A expression was correlated with poorer overall survival (P < 0.0001) and disease-free survival (P < 0.0337) in HCC patients. We constructed in vitro KIF4A overexpression and depletion HCC cell models. KIF4A overexpression significantly enhanced cellular proliferation and clonogenic abilities, whereas KIF4A depletion caused a dramatic increase of cells with abnormal chromosome segregation and subsequently resulted in augmentation of apoptosis in HCC cells. In addition, we demonstrated that KIF4A depletion was related to inhibition of Akt kinase activity and induction of intrinsic apoptosis signaling pathway. Taken together, KIF4A may act as a prognostic biomarker and potential therapeutic target in human HCC.
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5
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GTSE1 promotes cell migration and invasion by regulating EMT in hepatocellular carcinoma and is associated with poor prognosis. Sci Rep 2017; 7:5129. [PMID: 28698581 PMCID: PMC5505986 DOI: 10.1038/s41598-017-05311-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 05/26/2017] [Indexed: 12/18/2022] Open
Abstract
G2 and S phase-expressed-1 (GTSE1) regulates G1/S cell cycle transition. It was recently reported to be overexpressed in certain human cancers, but its significance and mechanism(s) in hepatocellular carcinoma (HCC) remain unknown. Here, we showed preferential GTSE1 upregulation in human HCC tissues and cell lines that positively correlated with Ki67. GTSE1 knockdown by short hairpin RNA resulted in deficient colony-forming ability and depleted capabilities of HCC cells to migrate and invade. Conversely, exogenous GTSE1 overexpression enhanced colony formation and stimulated HCC cell migration and invasion. Furthermore, GTSE1 silencing was associated with the downregulation of N-cadherin, β-catenin, and Snail, whereas GTSE1 overexpression caused the opposite effects. GTSE1 upregulated Snail via both transcription and protein degradation pathways. Additionally, GTSE1 modulated the sensitivity of HCC to 5-fluorouracil therapy. High GTSE1 correlates with chemo-resistance, while low GTSE1 increases drug sensitivity. Kaplan-Meier survival analysis indicated that high GTSE1 levels were significantly associated with poor overall survival. In conclusion, high expression of GTSE1 is commonly noted in HCC and is closely correlated with migration and invasion by epithelial-to-mesenchymal transition (EMT) modulation. Activated GTSE1 significantly interferes with chemotherapy efficacy and influences the probability of survival of patients with HCC. GTSE1 may thus represent a promising molecular target.
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6
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Lee SY, Lee SH, Kim JE, Kim H, Kim K, Kook YH, Kim BJ. Identification of Novel A2/C2 Inter-Genotype Recombinants of Hepatitis B Virus from a Korean Chronic Patient Co-Infected with Both Genotype A2 and C2. Int J Mol Sci 2017; 18:ijms18040737. [PMID: 28358313 PMCID: PMC5412322 DOI: 10.3390/ijms18040737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/21/2017] [Accepted: 03/27/2017] [Indexed: 12/16/2022] Open
Abstract
Nearly all cases of Hepatitis B virus (HBV) infections in South Korea have the C2 genotype. Here, we have identified a chronically infected patient who was co-infected with HBV of both the A2 and C2 genotypes by screening 135 Korean chronically infected patients using direct sequencing protocols targeting the 1032-bp polymerase reverse transcriptase (RT) region. Further polymerase chain reaction (PCR)-cloning analysis (22 clones) of the RT showed that this patient had genotype C2 (12 clones), genotype A2 (six clones) and A2/C2 inter-genotype HBV recombinants (four clones). BootScan analysis showed that three of the four recombinants have different types of recombination breakpoints in both the RT and overlapping hepatitis B surface antigen (HBsAg) region. Given the significance of HBsAg as a diagnostic or vaccination target against HBV infection, clinical implications of these identified recombinants should be studied in the future. To our knowledge, this is the first report on A2/C2 inter-genotype HBV recombinants.
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Affiliation(s)
- So-Young Lee
- Department of Biomedical Sciences, Microbiology and Immunology, Liver Research Institute and Cancer Research Institute, College of Medicine, Seoul National University, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea.
| | - Seung-Hee Lee
- Department of Biomedical Sciences, Microbiology and Immunology, Liver Research Institute and Cancer Research Institute, College of Medicine, Seoul National University, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea.
| | - Ji-Eun Kim
- Department of Biomedical Sciences, Microbiology and Immunology, Liver Research Institute and Cancer Research Institute, College of Medicine, Seoul National University, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea.
| | - Hong Kim
- Department of Biomedical Sciences, Microbiology and Immunology, Liver Research Institute and Cancer Research Institute, College of Medicine, Seoul National University, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea.
| | - Kijeong Kim
- Department of Microbiology, School of Medicine, Chung-Ang University, Seoul 156-756, Korea.
| | - Yoon-Hoh Kook
- Department of Biomedical Sciences, Microbiology and Immunology, Liver Research Institute and Cancer Research Institute, College of Medicine, Seoul National University, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea.
| | - Bum-Joon Kim
- Department of Biomedical Sciences, Microbiology and Immunology, Liver Research Institute and Cancer Research Institute, College of Medicine, Seoul National University, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea.
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7
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Increased ERp57 Expression in HBV-Related Hepatocellular Carcinoma: Possible Correlation and Prognosis. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1252647. [PMID: 28373975 PMCID: PMC5360968 DOI: 10.1155/2017/1252647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/13/2017] [Indexed: 02/05/2023]
Abstract
Aim. ERp57 is involved in virus induced endoplasmic reticulum stress (ERS) and plays an important role in tumorigenesis. This study aimed to find whether HBV infection altered ERp57 expression and whether ERp57 regulation was involved in hepatitis B virus-related hepatocellular carcinoma (HBV-HCC) genesis. Materials and Methods. HBV-HCC tissues, chronic hepatitis B (CHB) liver tissues, and normal liver tissues were acquired. ERp57 expressions in these tissues were detected through immunohistochemistry (IHC). And ERp57 expression in liver cell line L02, HBV replicative liver cell line L02-pHBV4.1, and HCC cell lines were detected through western blot for verification. Then medical data on patients providing HCC tissues were collected and analyzed along with ERp57 expression. Results. Higher ERp57 expression was found in HCC and CHB tissues (p < 0.001). And HCC cell lines and L02-pHBV4.1 presented higher ERp57 expression as well. In patients, ERp57 expression showed significant differences between death and survival groups (p = 0.037). And cumulative survival in patients with higher ERp57 (score ⩾ 8.75) is significantly lower (p = 0.009). Conclusion. Our study found increased expression of ERp57 in HBV-HCC. Such altered expression could be related to HBV infection and high ERp57 expression may lead to poor prognosis of HBV-HCC patients.
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Zhou LY, Chen EQ, Wang ML, Chen LL, Liu CP, Zeng F, Tang H. Biological characteristics comparison of HBV rtA181T mutants with truncated or substituted HBsAg expression in vitro and in vivo model systems. Sci Rep 2016; 6:39260. [PMID: 27976732 PMCID: PMC5157016 DOI: 10.1038/srep39260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 11/22/2016] [Indexed: 02/05/2023] Open
Abstract
The hepatitis B virus(HBV) polymerase rtA181T mutation is selected during long-term antiviral therapy. As the polymerase gene completely overlaps with the envelope (S) gene, HBV rtA181T mutation also carries sW172 mutations. In this study, we investigated whether there were biological differences between rtA181T/sW172* (coding truncated HBsAg) and rtA181T/sW172L (coding substituted HBsAg) mutants. In cell experiments, a slight decline of viral replication was observed in both two mutants as compared to wild-type strains, but the levels of supernatant HBsAg and HBV DNA in rtA181T/sW172* were significantly lower than those in rtA181T/sW172L transfected cells. In animal experiments, we were amazed to find that viral replication in rtA181T/sW172* mutant increased and maintained significantly longer than that in rtA181T/sW172L mutant, while no significant difference was observed between rtA181T/sW172L and wild-type strains. Compared with wild-type strains, there were intracellular accumulations of HBsAg and HBcAg in rtA181/sW172* but none in rtA181/sW172L mutant strains. Importantly, we also found that truncated HBsAg could increase the activity of HBV core promoter, but substituted HBsAg could not. In summary, the characteristics of above two rtA181T mutants mentioned above were significantly different, and it is necessary and important for us to distinguish sW172* truncated mutation from sW172L substituted mutation.
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Affiliation(s)
- Ling-Yun Zhou
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - En-Qiang Chen
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Meng-Lan Wang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lan-Lan Chen
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Cui-Ping Liu
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Fan Zeng
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hong Tang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
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Hou SH, Hu J, Zhang Y, Li QL, Guo JJ. Effects of interaction between genetic variants in human leukocyte antigen DQ and granulysin genes in Chinese Han subjects infected with hepatitis B virus. Microbiol Immunol 2016; 59:209-18. [PMID: 25644528 DOI: 10.1111/1348-0421.12239] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 01/25/2015] [Accepted: 01/28/2015] [Indexed: 12/13/2022]
Abstract
Single nucleotide polymorphisms (SNPs) of HLA-DQ and granulysin (GNLY) are reportedly associated with HBV infection. The aim of this study was to investigate the effects of interactions between SNPs in HLA-DQ and GNLY on the outcome of hepatitis B virus (HBV) infection in Chinese Han subjects. HLA-DQ (rs9275572) and GNLY (rs1866139 and rs11127) were genotyped in 310 subjects with HBV-related chronic liver disease, 295 in whom spontaneous clearance of HBV had occurred and 316 who had not been exposed to HBV. HLA-DQ rs9275572 was significantly correlated with HBV clearance (dominant genetic model: OR, 1.84; 95% CI, 1.30-2.61; adjusted P = 0.001). There was no statistical association of GNLY rs1866139 and rs11127with HBV infection outcomes. However, significant sex-specific associations with HBV susceptibility were observed in men who carried rs1866139 CG or rs11127 TC and in women who carried rs1866139 GG or rs11127 CC. The findings were the same in the validation cohort, which was composed of 829 subjects. Based on a multifactor dimensionality reduction test with permutation correction, a three-way interaction between SNPs in HLA-DQ and GNLY was identified in terms of HBV clearance. In conclusion, additional evidence for an association of HLA-DQ and GNLY SNPs with HBV infection outcomes has been identified and a SNP-SNP interaction between HLA-DQ and GNLY on HBV clearance observed.
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Affiliation(s)
- Si-hui Hou
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Chongqing Medical University
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Yang J, Lu H, Guo R, Yan D, Ye P, Jin L, Chen C, Cao H, Diao H, Li L. Molecular profile of the T cell receptor beta variable in peripheral blood lymphocytes from chronic asymptomatic HBV carriers. Pathog Dis 2014; 73:1-9. [PMID: 25722488 DOI: 10.1093/femspd/ftu018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Jiezuan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Haifeng Lu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Renyong Guo
- Department of Laboratory Medicine, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Dong Yan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Ping Ye
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Linfeng Jin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Chunlei Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Hongcui Cao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Hongyan Diao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310003, China
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Tong HV, Thomas Bock C, Velavan TP. Genetic insights on host and hepatitis B virus in liver diseases. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2014; 762:65-75. [PMID: 25475418 DOI: 10.1016/j.mrrev.2014.06.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 06/16/2014] [Accepted: 06/17/2014] [Indexed: 02/08/2023]
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12
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Mixson-Hayden T, Lee D, Ganova-Raeva L, Drobeniuc J, Stauffer WM, Teshale E, Kamili S. Hepatitis B virus and hepatitis C virus infections in United States-bound refugees from Asia and Africa. Am J Trop Med Hyg 2014; 90:1014-20. [PMID: 24732462 DOI: 10.4269/ajtmh.14-0068] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to determine the prevalence of active hepatitis B and C virus infections among refugees from various countries in Africa and Asia. Pre-admission serum samples collected during 2002-2007 from refugees originating from Bhutan (N = 755), Myanmar (N = 1076), Iraq (N = 1137), Laos (N = 593), Thailand (N = 622), and Somalia (N = 707) were tested for hepatitis B virus (HBV) DNA and hepatitis C virus (HCV) RNA. The HBV DNA (genotypes A, B, C, and G) was detected in 12.1% of samples negative for anti-HBs. Highest HBV prevalence was found among Hmong; lowest among Bhutanese. The HCV RNA (genotypes 1a, 1b, 1c, 3b, 6n, and 6m) was detected in 1.3% of the samples. Highest HCV prevalence was found among Hmong from Thailand; lowest among Iraqis. Screening specific refugee groups at high risk for viral hepatitis infections will identify infected individuals who could benefit from referral to care and treatment and prevent further transmissions.
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Affiliation(s)
- Tonya Mixson-Hayden
- Centers for Disease Control and Prevention, Division of Viral Hepatitis, Atlanta, Georgia; University of Minnesota, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Deborah Lee
- Centers for Disease Control and Prevention, Division of Viral Hepatitis, Atlanta, Georgia; University of Minnesota, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Lilia Ganova-Raeva
- Centers for Disease Control and Prevention, Division of Viral Hepatitis, Atlanta, Georgia; University of Minnesota, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Jan Drobeniuc
- Centers for Disease Control and Prevention, Division of Viral Hepatitis, Atlanta, Georgia; University of Minnesota, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota
| | - William M Stauffer
- Centers for Disease Control and Prevention, Division of Viral Hepatitis, Atlanta, Georgia; University of Minnesota, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Eyasu Teshale
- Centers for Disease Control and Prevention, Division of Viral Hepatitis, Atlanta, Georgia; University of Minnesota, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Saleem Kamili
- Centers for Disease Control and Prevention, Division of Viral Hepatitis, Atlanta, Georgia; University of Minnesota, Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota
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Liu FW, Wu DB, Chen EQ, Liu C, Liu L, Chen SC, Gong DY, Zhao LS, Tang H, Zhou TY. Expression of TRAIL in liver tissue from patients with different outcomes of HBV infection. Clin Res Hepatol Gastroenterol 2013; 37:269-74. [PMID: 23122685 DOI: 10.1016/j.clinre.2012.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 08/29/2012] [Accepted: 09/24/2012] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Hepatitis B virus (HBV) infection triggers the production of TRAIL, suggesting that TRAIL may play a role in liver injury after HBV infection. However, it remains unclear whether TRAIL expression in liver tissue correlates with the extent of liver injury caused by HBV infection. The aim of this article was to investigate the correlation of TRAIL expression and disease severity. METHODS Liver biopsy specimens were collected from 71 patients with different outcomes of HBV infection, including 25 cases of chronic hepatitis B (CHB), 18 cases of severe hepatitis B (SHB), and 28 cases of liver cirrhosis (LC). Besides, specimens from 33 healthy individuals without detectable liver diseases were used as negative control (NC). The expression of TRAIL was measured by immunohistochemistry. RESULTS Expression of TRAIL in the HBV-infected patients was higher than that in the NC (P<0.001). Among the patients, TRAIL expression in the ones with CHB was significantly higher than that in NC (P<0.001). However, there was no statistically significant difference between patients with SHB and NC or between the ones with LC and NC (P=0.067 and P=0.178, respectively). Moreover, TRAIL expression in patients with CHB was higher than that in patients with SHB or LC (P<0.001 for both), whereas no statistically significant difference was observed between patients with SHB and the ones with LC (P=0.511). CONCLUSION TRAIL is involved in the inflammatory and immunoregulatory response after HBV infection. However, there was no significant correlation between expression of TRAIL and the extent of liver injury.
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Affiliation(s)
- Fan-wei Liu
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
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14
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Coffin CS, Osiowy C, Myers RP, Gill MJ. Virology and clinical sequelae of long-term antiviral therapy in a North American cohort of hepatitis B virus (HBV)/human immunodeficiency virus type 1 (HIV-1) co-infected patients. J Clin Virol 2013; 57:103-8. [PMID: 23465393 DOI: 10.1016/j.jcv.2013.02.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 02/01/2013] [Accepted: 02/05/2013] [Indexed: 02/07/2023]
Abstract
UNLABELLED There are limited recent data worldwide on clinical and virological outcomes in hepatitis B virus (HBV) and human immunodeficiency virus (HIV) coinfected patients on dual active antiretroviral therapy (ART). METHODS We completed a retrospective review of 53 coinfected patients. HBV DNA in plasma was tested by PCR (sensitivity <20-<55 IU/ml or ∼100-300 copies/ml, Roche Diagnostics). Quantitative hepatitis B surface antigen (qHBsAg) was measured by an in-house assay (calibration range 0.24-62.5 IU/ml). HBV genotyping was done by line probe assay, and HBV variants determined by sequencing the HBV polymerase (P)/overlapping surface (S) gene. RESULTS There were 7% (4/53) non-liver related deaths, ∼11% (6/53) had >F2 fibrosis, including 3 with cirrhosis. The median CD4+ T cell count was 415 cells/mm(3) (range 60-1310). 54% (28/51) were HBeAg-positive, and 81% (43/53) on ART had undetectable HBV DNA but only 5% (3/51) lost HBeAg. In 11/53 with HBV sequencing, 90% (10/11) were found to have HBV genotype A (HBV-A) and/or 27% (3/11) had a mixed A/G infection. Anti-HBV drug resistant mutations were detected in 54% (6/11) (i.e., any combination of rtV173L, rtL180M, M204V) and 45% (5/11) had an immune escape mutation (sP120S). In 12 with qHBsAg testing, the majority (9/12) had low-level qHBsAg ∼1-3 log(10) IU/ml. SUMMARY Liver disease occurs in ∼10% of coinfected patients on ART and many have low-level HBV DNA and qHBsAg. In those sequenced most were HBV-A or mixed A/G genotype, and several carry P and S mutants highlighting the complex molecular virology of HBV during HIV coinfection.
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Affiliation(s)
- C S Coffin
- Liver Unit, Division of Gastroenterology and Hepatology, Department of Medicine, 3280 Hospital Drive NW, University of Calgary, Calgary, AB T2N 4Z6, Canada.
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Hakami A, Ali A, Hakami A. Effects of hepatitis B virus mutations on its replication and liver disease severity. Open Virol J 2013; 7:12-8. [PMID: 23400390 PMCID: PMC3565227 DOI: 10.2174/1874357901307010012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 11/26/2012] [Accepted: 11/27/2012] [Indexed: 02/07/2023] Open
Abstract
Hepatitis B virus (HBV), nowadays, is one of the major human pathogens worldwide. Approximately, 400 million people worldwide have chronic HBV infection. Only 5% of persons infected during adulthood develop chronic infection. The reverse is true for those infected at birth or in early childhood, i.e. more than 90% of these persons progress to chronic infection. Currently, eight different genotypes o f HBV have been identified, differing in nucleotide sequence by greater than 8%. In addition, numerous subgenotypes have a l s o been recognized based on the nucleotide sequence variability of 4- 8%. It has invariably been found that these genotypes and mutations play a pivotal role in the liver disease aggravation and virus replication. The precore mutations (G1896A) and the double mutation (T1762/A1764) in the basal core promoter are important mutations that alter expression of the hepatitis B e antigen (HBeAg). The HBeAg is important for establishing viral persistence. The precore G1896A mutation abrogates the expression of HBeAg. Numerous other mutations alter the disease severity and progression. It is predictive that the infected patient has high risk of hepatocellular carcinoma if the genotype C is incriminated or if HBV possesses basal core promoter double mutation. Association of the remaining genotypes have been noted but with less degree than genotype C. Phenotypic assays of the different HBV protein markers with different molecular techniques illustrate the replication efficiency of the virus in cell lines. This review will discuss various mutations into their association with liver disease severity and progression as well as virus replication.
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Affiliation(s)
- Abdulrahim Hakami
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61481, Saudi Arabia
| | - Abdelwahid Ali
- Department of Clinical Microbiology, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
| | - Ahmed Hakami
- Department of Clinical Microbiology, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
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Siburian MD, Utama A, Dhenni R, Arnelis N, Fanany I, Intan MDB, Kurniasih TS, Andriani F, Afadlal S, Julianto EB, Rasman WS, Zubir N, Mathew G. High prevalence of hepatitis B virus genotype C/C1 in the Minangkabau ethnic group in Indonesia. Virol J 2013; 10:27. [PMID: 23336976 PMCID: PMC3583810 DOI: 10.1186/1743-422x-10-27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 01/15/2013] [Indexed: 12/13/2022] Open
Abstract
Background The Minangkabau is one of the major ethnic groups in Indonesia. Previous studies with a limited number of samples have shown a different prevalence of HBV/C in the Minangkabau compared to the Indonesian population in general. The aim of this study was to assess the HBV genotype distribution pattern and the prevalence of pre-S, T1753V and A1762T/G1764A mutations among the Minangkabau HBV carriers. The samples were collected from Padang, West Sumatera and from western Java. Mixed primers for specific genotypes were used to determine the HBV genotype. Pre-S or S genes were amplified, sequenced and aligned with reference sequences from GenBank to derive a phylogenetic tree for subgenotyping. Pre-S genes were also analyzed for mutations. The basal core promoter (BCP) region was amplified and directly sequenced to analyze T1753V and A1762T/G1764A mutations. Results The predominant HBV genotype among the Minangkabau HBV carriers (n=117) was C (72.6%) followed by B (24.8%) and co-infection with B and C (2.6%). The prevalence of pre-S mutations, including both the pre-S deletion and pre-S2 start codon mutation, was 41.0%, and the T1753V and A1762T/G1764A mutations were found in 51.9% and 71.2% respectively. HBV/C1 was the predominant HBV subgenotype in the Minangkabau HBV carriers, and was found in 66.2%, followed by B3, B7, C8, B2, B9, C2, and C10 (18.3%, 7.0%, 2.8%, 1.4%, 1.4%, 1.4%, and 1.4% respectively). From samples that were found to be co-infected with HBV B and C, two samples were successfully cloned and subgenotyped, including one with mixed subgenotypes of B3 and C1, and another one with mixed subgenotypes of B7, C1, putative intergenotypic of B/A, and C/A. Furthermore, three samples from donors of non-Minangkabau ethnicity from Padang were found to be infected with an intragenotypic recombination form, including a putative recombinant of B8/B3 and B9/B7. Conclusion HBV/C with subgenotype C1 was the predominant HBV genotype among HBV carriers of Minangkabau ethnicity. The prevalence of pre-S, A1762T/G1764A, and T1753V mutations was higher among the Minangkabau compared to Indonesian HBV carriers in general.
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Affiliation(s)
- Marlinang D Siburian
- Molecular Epidemiology Division, Mochtar Riady Institute for Nanotechnology, Universitas Pelita Harapan, Lippo Karawaci, Tangerang, Indonesia
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17
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Wang Q, Schwarzenberger P, Yang F, Zhang J, Su J, Yang C, Cao J, Ou C, Liang L, Shi J, Yang F, Wang D, Wang J, Wang X, Ruan P, Li Y. Experimental chronic hepatitis B infection of neonatal tree shrews (Tupaia belangeri chinensis): a model to study molecular causes for susceptibility and disease progression to chronic hepatitis in humans. Virol J 2012; 9:170. [PMID: 22913805 PMCID: PMC3511180 DOI: 10.1186/1743-422x-9-170] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 08/07/2012] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) infection continues to be an escalating global health problem. Feasible and effective animal models for HBV infection are the prerequisite for developing novel therapies for this disease. The tree shrew (Tupaia) is a small animal species evolutionary closely related to humans, and thus is permissive to certain human viral pathogens. Whether tree shrews could be chronically infected with HBV in vivo has been controversial for decades. Most published research has been reported on adult tree shrews, and only small numbers of HBV infected newborn tree shrews had been observed over short time periods. We investigated susceptibility of newborn tree shrews to experimental HBV infection as well as viral clearance over a protracted time period. RESULTS Forty-six newborn tree shrews were inoculated with the sera from HBV-infected patients or tree shrews. Serum and liver samples of the inoculated animals were periodically collected and analyzed using fluorescence quantitative polymerase chain reaction, enzyme-linked immunosorbent assay, Southern blot, and immunohistochemistry. Six tree shrews were confirmed and four were suspected as chronically HBV-infected for more than 48 (up to 228) weeks after inoculation, including three that had been inoculated with serum from a confirmed HBV-infected tree shrew. CONCLUSIONS Outbred neonatal tree shrews can be long-term chronically infected with HBV at a frequency comparable to humans. The model resembles human disease where also a smaller proportion of infected individuals develop chronic HBV related disease. This model might enable genetic and immunologic investigations which would allow determination of underlying molecular causes favoring susceptibility for chronic HBV infection and disease establishment vs. viral clearance.
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Affiliation(s)
- Qi Wang
- Department of Experimental Pathology, Guangxi Cancer Institute (Guangxi Tumor Hospital), Nanning 530021, China
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18
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Panigrahi R, Biswas A, Banerjee A, Singh SP, Panigrahi MK, Roque-Afonso AM, Das HS, Mahapatra PK, Chakrabarti S, Chakravarty R. Subgenotype D5, BCP and MHR mutations in hepatic complications among hepatitis B virus infected patients from Orissa, India. INFECTION GENETICS AND EVOLUTION 2012; 12:1622-9. [PMID: 22820088 DOI: 10.1016/j.meegid.2012.06.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 06/30/2012] [Accepted: 06/30/2012] [Indexed: 12/18/2022]
Abstract
The study was undertaken to investigate the clinical implications of hepatitis B virus (HBV) genotypes, basal core promoter (BCP), precore (PC) and surface gene mutations in HBV infected patients from Orissa, southeastern India. HBV infections were identified by serology testing and HBV DNA amplification by polymerase chain reaction among the 152 patients. After sequencing, surface gene mutation were studied by sequence analysis as well as by using BLOSUM scores and BCP mutations were studied only by sequence analysis. A high proportion of HBV/D5 (66.0%) was found among the study samples having significant relation with liver cirrhosis (LC) and hepatocellular carcinoma (HCC) patients (p<0.05). The BCP mutation, TA (81.4%) and C1753/TA (75.0%) was found in significant proportion (p<0.05) among HCC cases and in fact a gradual increase in these mutations were noted between inactive carriers (IC) to HCC group and also showed higher viral load. An increasing trend of major hydrophilic region (MHR) mutations in S gene was also observed from IC (56.0%) to chronic liver disease (CLD) (60.4%) to LC (72.4%) to HCC (95.0%) patients. In conclusion, our study suggests that the predominant HBV subgenotype HBV/D5 with high viral load and BCP mutations (double and triple) and high mutations in MHR region was significantly associated with advanced liver disease (LC and HCC) and might act as predictor of severe hepatic complications.
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Affiliation(s)
- Rajesh Panigrahi
- ICMR Virus Unit, Kolkata, ID & BG Hospital Campus, Kolkata, India
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Yang J, Chen J, Mao H, Yi P, Yan D, He J, Li L. Skewed T-cell receptor beta chain variable gene (TCRBV) usage among different clinical types of patients with chronic HBV infection. ACTA ACUST UNITED AC 2012; 65:448-55. [PMID: 22469337 DOI: 10.1111/j.1574-695x.2012.00969.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 03/09/2012] [Accepted: 03/24/2012] [Indexed: 02/05/2023]
Abstract
This study aimed to determine the degree of clonal expansion of T cells in peripheral blood mononuclear cells (PBMCs) isolated from patients suffering from different clinical types of hepatitis B (HB) infection and to analyse the clinical relevance of the skewed T-cell receptor beta variable (TCRBV). Sera and PBMCs were collected from 90 HB patients. Gene melting spectral pattern (GMSP) analysis was used to determine the distribution and expansion of populations expressing specific TCRBV complementary determined region 3 (CDR3) genes. TCRBV genes associated with monoclonal expansion were sequenced. TCRBV families from the majority of patients (80/90) displayed skewed T-cell expansion. Furthermore, TCRBV11, BV12 and BV13.1 were more frequent than other TCRBV genes; the sequence of TCRBV11 CDR3 was expressed as 'VYNEQ' in all patients and was accompanied by the BJ2.1 fragment. In patients with chronic HB, the frequency of skewed TCRBV was inversely correlated with hepatitis B virus (HBV) DNA levels. The persistently skewed TCRBV gene families in HB patients may be associated with the development and maintenance of hepatitis. GMSP analysis of TCRBV gene families may be helpful in estimating disease status, and BV11 may be associated with HBV replication in patients with chronic HBV infection.
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Affiliation(s)
- Jiezuan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Chiang CH, Yang HI, Jen CL, Lu SN, Wang LY, You SL, Su J, Iloeje UH, Chen CJ. Association between obesity, hypertriglyceridemia and low hepatitis B viral load. Int J Obes (Lond) 2012; 37:410-5. [PMID: 22531094 DOI: 10.1038/ijo.2012.63] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE This study aimed to investigate the metabolic risk factors of high hepatitis B viral load. DESIGN Large-scale, community-based cross-sectional study. SUBJECTS A total of 3587 hepatitis B virus (HBV)-infected participants without liver cirrhosis at study entry were investigated. High HBV viral load was defined as a serum level 10(4) copies per ml for hepatitis B e antigen (HBeAg) seronegatives or 10(8) copies per ml for HBeAg seropositives. RESULTS Among HBeAg seropositives (n=545), high HBV viral load was reversely associated with extreme obesity (odds ratio (OR), 0.30; 95% confidence interval (CI), 0.13-0.68; P=0.004) or central obesity (OR, 0.53; 95% CI, 0.34-0.82; P=0.004) after adjustment for gender, hypertriglyceridemia, hyperuricemia and history of hypertension. High HBV viral load remained significantly inversely associated with extreme obesity (OR, 0.17; 95% CI, 0.05-0.63; P=0.008) and central obesity (OR, 0.44; 95% CI, 0.25-0.78; P=0.005) in male HBeAg-seropositive participants in stratification analyses by gender. Among HBeAg seronegatives (n=3042), however, high HBV viral load was inversely associated with hypertriglyceridemia (OR, 0.74; 95% CI, 0.61-0.89, P=0.002) after adjustment for age, gender, high serum alanine aminotransferase level, and extreme obesity or central obesity. High HBV viral load was still inversely associated with hypertriglyceridemia in both female (OR, 0.70; 95% CI, 0.50-0.97; P=0.041) and male (OR, 0.75; 95% CI, 0.60-0.94; P=0.011) HBeAg-seronegative participants. CONCLUSION Extreme obesity and central obesity were associated with a low prevalence of high HBV viral load in HBeAg seropositives, especially in men; while hypertriglyceridemia was associated with a low prevalence of high viral load in HBeAg seronegatives in both women and men.
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Affiliation(s)
- C-H Chiang
- Department of Community and Family Medicine, National Taiwan University Hospital, Yun-Lin Branch, Yun-Lin, Taiwan
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Chen EQ, Sun H, Feng P, Gong DY, Liu C, Bai L, Yang WB, Lei XZ, Chen LY, Huang FJ, Tang H. Study of the expression levels of Hepatocyte nuclear factor 4 alpha and 3 beta in patients with different outcome of HBV infection. Virol J 2012; 9:23. [PMID: 22257755 PMCID: PMC3274429 DOI: 10.1186/1743-422x-9-23] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 01/18/2012] [Indexed: 02/05/2023] Open
Abstract
Hepatocyte nuclear factors 4 alpha (HNF4α) and 3 beta (HNF3β) are members of a group of liver-enriched transcription factors (LETFs) that play important roles in regulating the replication of hepatitis B virus (HBV) and liver inflammation. However, the relationship of the level of HNF4α and HNF3β with the severity of HBV-infected liver diseases is unclear. In this study, liver tissue samples from different types of HBV patients were collected, and HNF4α and HNF3β expression were detected by immunohistochemistry. The expression of HNF4α was significant higher in patients with severe hepatitis B(SHB) than those with chronic hepatitis B(CHB) and liver cirrhosis(LC) (both P < 0.05), but similar between patients with CHB and LC (P > 0.05). And the expression of HNF3β was similar among patients with CHB, LC and SHB (P > 0.05 for all pairwise comparison). This suggests that the expression level of HNF4α was different in patients with different outcome of HBV infection, high expression level of HNF4α may correlate with occurrence of SHB
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Affiliation(s)
- En-Qiang Chen
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
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