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https://www.readbyqxmd.com/read/28237828/the-development-of-hepatocarcinoma-after-long-term-antivirus-treatment-of-chinese-patients-with-chronic-hepatitis-b-virus-infection-incidence-long-term-outcomes-and-predictive-factors
#1
Zhi-Qin Li, Chun-Ling Hu, Ping Yu, Xin-Yu Gu, Jia-Jia Zhang, Hua Li, Hong-Yu Zhang, Jun Lv, Yan-Min Liu, Qing-Lei Zeng, Jing-Ya Yan, Zu-Jiang Yu, Yi Zhang
BACKGROUND: Patients with chronic hepatitis B virus (HBV) infection are at high risk for progressing to decompensated cirrhosis and hepatocellular carcinoma (HCC). Although long-term treatment with nucleos(t)ide analogues (NAs) benefits patients with chronic hepatitis B (CHB), many develop HCC. Therefore, the clinical outcomes of patients CHB who undergo long-term treatment with NAs remain to be identified. The aim of this study therefore was to evaluate the risk and predictors of patients with CHB who develop hepatitis B-induced HCC...
February 22, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28236535/impaired-expression-and-function-of-tlr8-in-chronic-hbv-infection-and-its-association-with-treatment-responses-during-peg-ifn-%C3%AE-2a-antiviral-therapy
#2
Guangying Deng, Jun Ge, Chao Liu, Jinke Pang, Zuxiong Huang, Jie Peng, Jian Sun, Jinlin Hou, Xiaoyong Zhang
BACKGROUND AND AIM: Toll-like receptor 8 (TLR8) plays an important role in controlling chronic viral infections. However, the role of TLR8 in chronic hepatitis B virus (HBV) infection is poorly understood. In this study, we aimed to investigate the expression and function of TLR8 in peripheral blood mononuclear cells (PBMCs) of chronic hepatitis B (CHB) patients and its alteration during peg-IFN-α-2a therapy. METHODS: We evaluated TLR8 expression and antiviral function in vitro by real-time RT-PCR and flow cytometry analysis using fresh PBMCs obtained from CHB patients compared to healthy controls...
February 21, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28231660/-effect-of-telbivudine-on-infants-born-to-hbsag-positive-mothers-with-non-hypo-response-to-hepatitis-b-vaccine-during-their-second-and-third-trimesters-of-pregnancy
#3
X X Xu, B Wang, X F Wang, H X Wen, F Zhang, Z Q Yang, H Y Hao, T Wang, X H Shi, Z D Fu, B Wang, S P Wang
Objective: To explore the effect of telbivudine treatment in a prevention program on infants born to HBsAg-positive mothers with non-/hypo-responsiveness to hepatitis B vaccine. Methods: A retrospective cohort study with a total of 321 HBsAg-positive pregnant women and their infants enrolled, was conducted. The mothers were recruited from the Third People' s Hospital of Taiyuan, from July 2011 to January 2013. According to the situation of telbivudine intake in second and third trimesters of pregnancy, the participants were divided into two groups: with telbivudine-treated or as control...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28218976/differential-expression-of-innate-immune-response-genes-in-clinical-phases-of-chronic-hepatitis-b-infection
#4
Sara Romani, Seyed Masoud Hosseini, Seyed Reza Mohebbi, Andre Boonstra, Afsaneh Sharifian
We investigated innate immune gene expression in clinical phases of Chronic Hepatitis B infection, including immune tolerant (IT); immune active (IA); inactive carrier (IC); and hepatitis B e antigen (HBeAg)-negative phases, as well as healthy controls. Expression levels of interferon types I, II, and III, their receptor subunits, IRFs, TLRs and other IFN-induced genes in peripheral blood mononuclear cells were compared.Forty HBsAg-positive treatment-naïve subjects without co-infection with HIV, HCV or HDV were enrolled...
February 20, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28214886/adenovirus-vector-harboring-the-hbcag-and-tripeptidyl-peptidase-ii-genes-induces-potent-cellular-immune-responses-in-vivo
#5
Quanhui Tan, Siyuan Ma, Jianjun Hu, Xiaohua Chen, Yongsheng Yu, Zhenghao Tang, Guoqin Zang
BACKGROUND: Chronic hepatitis B virus (HBV) infection is associated with a weak but specific cellular immune response of the host to HBV. Tripeptidyl peptidaseⅡ (TPPⅡ), an intracellular macromolecule and proteolytic enzyme, plays an important complementary and compensatory role for the proteasome during viral protein degradation and major histocompatibility complex class I antigen presentation by inducing a specific cellular immune response in vivo. Based on a previous study, we aimed to explore the role of MHC class I antigen presentation in vivo and the mechanisms that may be involved...
January 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28199034/hepatitis-b-surface-antigen-reduction-by-switching-from-long-term-nucleoside-nucleotide-analog-administration-to-pegylated-interferon
#6
Nobuharu Tamaki, Masayuki Kurosaki, Atsunori Kusakabe, Etsuro Orito, Kouji Joko, Yuji Kojima, Hiroyuki Kimura, Yasushi Uchida, Chitomi Hasebe, Yasuhiro Asahina, Namiki Izumi
Hepatitis B surface antigen (HBsAg) reduction during nucleoside/nucleotide analog (NA) therapy is slow and an alternative strategy for patients receiving ongoing NA to facilitate HBsAg reduction is required. We investigated whether switching to pegylated interferon (PEG-IFN) after long-term NA administration enhances HBsAg reduction. Forty-nine patients who switched from long-term NA to 48 weeks of PEG-IFN alfa-2a were studied. The mean duration of previous NA was 48 months (sequential group). A total of 147 patients who continued NA and matched for baseline characteristics were analyzed for comparison (NA continuation group)...
February 15, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28195337/hepatitis-b-reactivation-in-hepatitis-b-and-c-coinfected-patients-treated-with-antiviral-agents-a-systematic-review-and-meta-analysis
#7
Guofeng Chen, Cheng Wang, Jing Chen, Dong Ji, Yudong Wang, Vanessa Wu, J Karlberg, George Lau
: There is an increased awareness of hepatitis B (HBV) reactivation in chronic hepatitis C (CHC) patients coinfected with HBV treated with pan-oral direct-acting antivirals (DAAs). We performed a systematic review and meta-analysis to compare the rate of HBV reactivation in CHC patients coinfected with overt HBV (hepatitis B surface antigen [HBsAg] positive) and occult HBV (HBsAg negative with positive HBV DNA) infection separately, treated with interferon (IFN)-based therapy to those with pan-oral DAAs...
February 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28194021/type-i-ifn-augments-il-27-dependent-trim25-expression-to-inhibit-hbv-replication
#8
Guangyun Tan, Qingfei Xiao, Hongxiao Song, Feng Ma, Fengchao Xu, Di Peng, Na Li, Xiaosong Wang, Junqi Niu, Pujun Gao, F Xiao-Feng Qin, Genhong Cheng
Hepatitis B virus (HBV) can cause chronic hepatitis B, which may lead to cirrhosis and liver cancer. Type I interferon (IFN) is an approved drug for the treatment of chronic hepatitis B. However, the fundamental mechanisms of antiviral action by type I IFN and the downstream signaling pathway are unclear. TRIM25 is an IFN-stimulated gene (ISG) that has an important role in RIG-I ubiquitination and activation. Whether TRIM25 is induced in liver cells by type I IFN to mediate anti-HBV function remains unclear...
February 13, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28192212/anti-hbv-drugs-suppress-the-growth-of-hbv-related-hepatoma-cells-via-down-regulation-of-hepatitis-b-virus-x-protein
#9
Shuqin Zhang, Shan Gao, Man Zhao, Yunxia Liu, Yanan Bu, Qiulei Jiang, Qiang Zhao, Lihong Ye, Xiaodong Zhang
Chronic infection of hepatitis B virus (HBV) is closely associated with the development of hepatocellular carcinoma (HCC). Meta-analyses show that adjuvant anti-HBV therapy is effective for HBV-related HCC patients in clinical. However, the significance that anti-HBV drugs depress HCC is poorly understood. Here, we investigated the effects of telbivudine (LdT), entecavir (ETV) and interferon-α2b (IFN-α2b) on HBV-related HCC. Our data showed that the treatment with the drugs significantly suppressed the growth of HBV-expressing hepatoma cells in vitro and in vivo, but failed to work in HBV-free liver cells...
February 9, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28164560/the-study-of-immune-response-in-pbmc-of-chb-patients-treated-with-ifn-%C3%AE-and-3-tc-in-vitro
#10
Hao Zhang, Zi-Shu Guan, Shi-He Guan, Kai Yang, Ying Pan, Yuan-Yuan Wu, Ai-Hua Wang, Bei-Bei Sun, Jie Hou, Xuan-Xuan Mu, Yu-Feng Gao, Wei-Sheng Cheng
BACKGROUND: The primary aim of this study is to measure the JAK-STAT signaling in HBV infected peripheral blood mononuclear cells (PBMCs) stimulated by IFN-α and 3-TC and explore the influence of HBV to the JAKSTAT signaling pathways. METHODS: PBMCs were separated from healthy volunteers and patients who had not received any treatment with chronic hepatitis B. PBMCs were divided into the control group, IFN-α stimulation group, Lamivudine stimulation group, and combined treatment group...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28157399/cxcr5-cd8-t-cells-indirectly-offer-b-cell-help-and-are-inversely-correlated-with-viral-load-in-chronic-hepatitis-b-infection
#11
Hang Jiang, Linhai Li, Jiang Han, Zhiwei Sun, Yihui Rong, Yun Jin
Treatment options for chronic hepatitis B (CHB) infection are extremely limited. CXCR5(+) CD8(+) T cell is a novel cell subtype and could possess strong cytotoxic properties in HIV infection. In this study, we investigated the role of CXCR5(+) CD8(+) T cells in CHB patients. Compared to healthy individuals, both CHB patients and hepatitis B virus (HBV)-infected hepatocellular carcinoma patients presented significant upregulation of CXCR5(+) CD8(+) T cells in peripheral blood, in which CXCR5(+) CD8(+) T cells were negatively correlated with the frequency of CXCR5(+) CD4(+) T cells in CHB patients...
February 3, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28141591/impact-of-interleukin-28b-rs12979860-c-t-polymorphism-on-severity-of-disease-and-response-to-treatment-in-hepatitis-delta
#12
Murat Ispiroglu, Ibrahim Halil Bahcecioglu, Ulvi Demirel, Mehmet Yalniz
INTRODUCTION: Pegylated-interferon alpha (Peg-IFN α) is the therapy most commonly used to treat chronic hepatitis delta virus (HDV) infection. In the present study, we planned to investigate effect of IL28B polymorphism on response to Peg-IFN α therapy and disease progression in patients with chronic HDV. METHODOLOGY: A total of 47 patients who received Peg-IFNα therapy for at least one year were investigated. The patients were divided into three groups based on their response to treatment: sustained viral response (SVR) (32%), unresponsive (53%), and relapse (15%)...
January 30, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28140702/antiviral-therapies-for-managing-viral-hepatitis-in-lymphoma-patients
#13
Michele Merli, Sara Rattotti, Manuel Gotti, Luca Arcaini
In patients with lymphoma the detection of positive hepatitis B or C viruses (HBV and HCV) serology involves crucial therapeutic consequences. In HBV-infected patients the serological profile of active (HBsAg-positive) or resolved (HBsAg-negative/anti-HBcAb-positive) infection is associated to differential risk of viral reactivation during rituximab-based therapy and require appropriate strategies of monitoring and of antiviral prophylaxis. In HCV-associated NHL patients consolidated data demonstrated that interferon (IFN)-based antiviral therapy (AT) is able to induce lymphoma regression strictly related to viral eradication, while preliminary data of the new direct-acting antivirals (DAAs) are very promising...
March 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28122987/mmp-9-facilitates-hepatitis-b-virus-replication-through-binding-with-ifnar1-to-repress-ifn-jak-stat-signaling
#14
Junbo Chen, Wei Xu, Yanni Chen, Xueping Xie, Yecheng Zhang, Chunqiang Ma, Qingyu Yang, Yang Han, Chengliang Zhu, Ying Xiong, Kailang Wu, Fang Liu, Yingle Liu, Jianguo Wu
: Hepatitis B virus (HBV) infection may cause acute hepatitis B (AHB), chronic hepatitis B (CHB), liver cirrhosis (LC) and hepatocellular carcinoma (HCC). However, the mechanisms by which HBV evades host immunity and maintains chronic infection are largely unknown. Here, we revealed that matrix metalloproteinase-9 (MMP-9) is activated in peripheral blood mononuclear cells (PBMCs) of HBV-infected patients, and HBV stimulates MMP-9 expression in macrophages and PBMCs isolated from healthy individuals...
January 25, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28093337/nk-cell-phenotypic-and-functional-shifts-coincide-with-specific-clinical-phases-in-the-natural-history-of-chronic-hbv-infection
#15
Rik A de Groen, Jun Hou, Gertine W van Oord, Zwier M A Groothuismink, Marieke van der Heide, Robert J de Knegt, André Boonstra
BACKGROUND: Chronic HBV infection can be divided into 4 distinct clinical phases: immune tolerant, immune active, inactive carrier, and HBeAg-negative hepatitis. Using a systems biology approach, we recently identified innate immune response components, specifically NK cells as a distinctive factor of specific HBV clinical phases. To expand on this study and identify the underlying immunological mechanisms, we performed a comprehensive profiling of NK cells in chronic HBV infection. METHODS: Peripheral blood from untreated chronic HBV patients was used to analyze phenotypic markers, as well as cytokine production and cytoxicity of NK cells...
April 2017: Antiviral Research
https://www.readbyqxmd.com/read/28092402/%C3%AE-%C3%AE-t-cells-are-indispensable-for-interleukin-23-mediated-protection-against-concanavalin-a-induced-hepatitis-in-hepatitis-b-virus-transgenic-mice
#16
Ziyu Meng, Jingya Wang, Yifang Yuan, Guangchao Cao, Shuobing Fan, Chao Gao, Li Wang, Zheng Li, Xiaoli Wu, Zhenzhou Wu, Liqing Zhao, Zhinan Yin
Hepatitis B virus surface antigen (HBsAg) carriers are highly susceptible to liver injury triggered by environmental biochemical stimulation. Previously, we have reported an inverse correlation between γδ T cells and liver damage in patients with hepatitis B virus (HBV). However, whether γδ T cells play a role in regulating the hypersensitivity of HBsAg carriers to biochemical stimulation-induced hepatitis is unknown. In this study, using HBV transgenic (HBs-Tg) and HBs-Tg T-cell receptor-δ-deficient (TCR-δ(-/-) ) mice, we found that mice genetically deficient in γδ T cells exhibited more severe liver damage upon Concanavalin A (Con A) treatment, as indicated by substantially higher serum alanine aminotransferase levels, further elevated interferon-γ (IFN-γ) levels and more extensive necrosis...
January 16, 2017: Immunology
https://www.readbyqxmd.com/read/28089609/de-immunized-and-functional-therapeutic-deft-versions-of-a-long-lasting-recombinant-alpha-interferon-for-antiviral-therapy
#17
Eduardo F Mufarrege, Sofía Giorgetti, Marina Etcheverrigaray, Frances Terry, William Martin, Anne S De Groot
Interferon α (IFN-α) exerts potent antiviral, immunomodulatory, and antiproliferative activity and have proven clinical utility in chronic hepatitis B and C virus infections. However, repeated IFN-α administration induces neutralizing antibodies (NAb) against the therapeutic in a significant number of patients. Associations between IFN-α immunogenicity and loss of efficacy have been described. So as to improve the in vivo biological efficacy of IFN-α, a long lasting hyperglycosylated protein (4N-IFN) derived from IFN-α2b wild type (WT-IFN) was developed...
January 10, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28072682/increasing-lag-3-expression-suppresses-t-cell-function-in-chronic-hepatitis-b-a-balance-between-immunity-strength-and-liver-injury-extent
#18
Bo Ye, Xuefen Li, Yuejiao Dong, Yiyin Wang, Li Tian, Sha Lin, Xia Liu, Haishen Kong, Yu Chen
Weak or absent virus-specific CD8 T-cell responses to hepatitis B virus (HBV) infection are thought to be responsible for persistent HBV infection. Previous studies have indicated that multiple inhibitory receptors, including lymphocyte activation gene-3 (LAG-3), can suppress the CD8 T-cell response in chronic viral infection. This study aimed to detect LAG-3 expression and to investigate the manner in which the immune response is regulated to balance the strength of the response with the extent of liver injury in chronic HBV infection...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28056087/mita-sting-and-its-alternative-splicing-isoform-mrp-restrict-hepatitis-b-virus-replication
#19
Shuhui Liu, Kaitao Zhao, Xi Su, Lu Lu, He Zhao, Xianwen Zhang, Yun Wang, Chunchen Wu, Jizheng Chen, Yuan Zhou, Xue Hu, Yanyi Wang, Mengji Lu, Xinwen Chen, Rongjuan Pei
An efficient clearance of hepatitis B virus (HBV) requires the coordinated work of both the innate and adaptive immune responses. MITA/STING, an adapter protein of the innate immune signaling pathways, plays a key role in regulating innate and adaptive immune responses to DNA virus infection. Previously, we identified an alternatively spliced isoform of MITA/STING, called MITA-related protein (MRP), and found that MRP could specifically block MITA-mediated interferon (IFN) induction while retaining the ability to activate NF-κB...
2017: PloS One
https://www.readbyqxmd.com/read/28041935/role-of-interleukin-23-in-monocyte-derived-dendritic-cells-of-hbv-related-acute-on-chronic-liver-failure-and-its-correlation-with-the-severity-of-liver-damage
#20
Suxia Bao, Jianming Zheng, Ning Li, Chong Huang, Mingquan Chen, Qi Cheng, Qian Li, Qing Lu, Mengqi Zhu, Qingxia Ling, Kangkang Yu, Shengshen Chen, Guangfeng Shi
BACKGROUND: The role of interleukin-23 (IL-23) in monocyte-derived dendritic cells (MoDCs) from hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) patients remains unclear. The aim of this study was to observe the correlation between the activation of the IL-23 signaling pathway and the prognosis of HBV-ACLF patients. MATERIALS AND METHODS: The baseline levels of serum IL-6, IL-12, IL-17, IL-23, tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ) from immune tolerant (IT), chronic hepatitis B (CHB), HBV-ACLF patients and healthy individuals who served as healthy controls (HCs) were analyzed using the Luminex system, whereas serum IL-23 from HBV-ACLF patients was measured by ELISA before and after treatment...
December 29, 2016: Clinics and Research in Hepatology and Gastroenterology
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