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Apol ÁD, Winckelmann AA, Duus RB, Bukh J, Weis N. The Role of CTLA-4 in T Cell Exhaustion in Chronic Hepatitis B Virus Infection. Viruses 2023; 15:v15051141. [PMID: 37243227 DOI: 10.3390/v15051141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/05/2023] [Accepted: 05/07/2023] [Indexed: 05/28/2023] Open
Abstract
Patients with chronic hepatitis B (CHB) gradually develop T cell exhaustion, and the inhibitory receptor molecule, cytotoxic T-lymphocyte antigen-4 (CTLA-4), may play a role in this phenomenon. This systematic review investigates the role of CTLA-4 in the development of T cell exhaustion in CHB. A systematic literature search was conducted on PubMed and Embase on 31 March 2023 to identify relevant studies. Fifteen studies were included in this review. A majority of the studies investigating CD8+ T cells demonstrated increased expression of CTLA-4 in CHB patients, though one study found this only in HBeAg-positive patients. Three out of four studies investigating the expression of CTLA-4 on CD4+ T cells found upregulation of CTLA-4. Several studies showed constitutive expression of CLTA-4 on CD4+ regulatory T cells. CTLA-4 blockade resulted in heterogeneous responses for all T cell types, as it resulted in increased T cell proliferation and/or cytokine production in some studies, while other studies found this only when combining blockade of CTLA-4 with other inhibitory receptors. Although mounting evidence supports a role of CTLA-4 in T cell exhaustion, there is still insufficient documentation to describe the expression and exact role of CTLA-4 in T cell exhaustion in CHB.
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Affiliation(s)
- Ása Didriksen Apol
- Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
- Copenhagen Hepatitis C Program (CO-HEP), Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
- Copenhagen Hepatitis C Program (CO-HEP), Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Anni Assing Winckelmann
- Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
- Copenhagen Hepatitis C Program (CO-HEP), Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
- Copenhagen Hepatitis C Program (CO-HEP), Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Rasmus Bülow Duus
- Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
| | - Jens Bukh
- Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
- Copenhagen Hepatitis C Program (CO-HEP), Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
- Copenhagen Hepatitis C Program (CO-HEP), Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Nina Weis
- Department of Infectious Diseases, Copenhagen University Hospital, 2650 Hvidovre, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
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Ablikim D, Zeng X, Xu C, Zhao M, Yang X, Feng X, Liu J. The Multiple Facets and Disorders of B Cell Functions in Hepatitis B Virus Infection. J Clin Med 2023; 12:jcm12052000. [PMID: 36902786 PMCID: PMC10004556 DOI: 10.3390/jcm12052000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
Chronic hepatitis B virus (HBV) infection continues to be a global public health burden. B cells play a pivotal role in mediating HBV clearance and can participate in the development of anti-HBV adaptive immune responses through multiple mechanisms, such as antibody production, antigen presentation, and immune regulation. However, B cell phenotypic and functional disorders are frequently observed during chronic HBV infection, suggesting the necessity of targeting the disordered anti-HBV B cell responses to design and test new immune therapeutic strategies for the treatment of chronic HBV infection. In this review, we provide a comprehensive summary of the multiple roles of B cells in mediating HBV clearance and pathogenesis as well as the latest developments in understanding the immune dysfunction of B cells in chronic HBV infection. Additionally, we discuss novel immune therapeutic strategies that aim to enhance anti-HBV B cell responses for curing chronic HBV infection.
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Affiliation(s)
- Dilhumare Ablikim
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoqing Zeng
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chunli Xu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Mengxiao Zhao
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xuecheng Yang
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xuemei Feng
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jia Liu
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology, Wuhan 430022, China
- Correspondence: ; Tel.: +86-186-9615-9826
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3
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Yin GQ, Chen KP, Gu XC. Heterogeneity of immune control in chronic hepatitis B virus infection: Clinical implications on immunity with interferon-α treatment and retreatment. World J Gastroenterol 2022; 28:5784-5800. [PMID: 36353205 PMCID: PMC9639659 DOI: 10.3748/wjg.v28.i40.5784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/08/2022] [Accepted: 10/10/2022] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B virus (HBV) infection is a global public health issue. Interferon-α (IFN-α) treatment has been used to treat hepatitis B for over 20 years, but fewer than 5% of Asians receiving IFN-α treatment achieve functional cure. Thus, IFN-α retreatment has been introduced to enhance antiviral function. In recent years, immune-related studies have found that the complex interactions between immune cells and cytokines could modulate immune response networks, in-cluding both innate and adaptive immunity, triggering immune responses that control HBV replication. However, heterogeneity of the immune system to control HBV infection, particularly HBV-specific CD8+ T cell heterogeneity, has consequ-ential effects on T cell-based immunotherapy for treating HBV infection. Altogether, the host’s genetic variants, negative-feedback regulators and HBV components affecting the immune system's ability to control HBV. In this study, we reviewed the literature on potential immune mechanisms affecting the immune control of HBV and the clinical effects of IFN-α treatment and retreatment.
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Affiliation(s)
- Guo-Qing Yin
- Center of Hepatology, Zhong-Da Hospital, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Ke-Ping Chen
- Center of Hepatology, Zhong-Da Hospital, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Xiao-Chun Gu
- Center of Hepatology, Zhong-Da Hospital, Southeast University, Nanjing 210009, Jiangsu Province, China
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Du P, Wang Z, Geng J, Wang Y. Expression and Clinical Significance of OX40 and OX40L mRNA in Hepatocellular Carcinoma. Bull Exp Biol Med 2021; 170:485-488. [PMID: 33713232 DOI: 10.1007/s10517-021-05093-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Indexed: 01/18/2023]
Abstract
In a retrospective study, the expression of mRNA of membrane receptor OX40 and its ligand OX40L in liver tissues was analyzed in 34 patients with hepatocellular carcinoma in order to assess their clinical implications and prognostic value. Expression of mRNA was analyzed by reverse transcription PCR and TaqMan probes. Expression of OX40 mRNA was significantly higher in tumor specimens in paired comparison with the samples of adjacent non-tumor tissue or normal liver tissue of control patients. In contrast, expression of OX40L mRNA was lower in tumor tissue in paired comparison with the samples of adjacent non-tumor tissue or normal liver tissue. The clinical and pathological analysis showed that expression of OX40 mRNA significantly correlated with the degree of tumor differentiation; there was an insignificant decreasing trend in the length of recurrence-free period. It was hypothesized that microenvironment of hepatocellular carcinoma can induce immunosuppression due to dysregulation of the expression of OX40 and OX40L in tumor tissue, which promotes tumor growth.
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Affiliation(s)
- P Du
- Clinical Laboratory of Emergency Medicine, Tianjin Union Medical Centre, Tianjin, P.R. China
| | - Z Wang
- Department of Pathology, Tianjin First Central Hospital, Tianjin, P.R. China
| | - J Geng
- Department of Clinical Laboratory, 2nd Hospital of Tianjin Medical University, Tianjin, P.R. China
| | - Y Wang
- Department of Clinical Laboratory, 2nd Hospital of Tianjin Medical University, Tianjin, P.R. China.
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Cai Y, Yin W. The Multiple Functions of B Cells in Chronic HBV Infection. Front Immunol 2020; 11:582292. [PMID: 33381113 PMCID: PMC7767983 DOI: 10.3389/fimmu.2020.582292] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
Chronic hepatitis B virus (HBV) infection is one of the main causes of liver diseases, of which the natural history and clinical outcomes are associated with the role of B cells. As humoral immune cells, B cells play a critical role in the process of anti-HBV antibody production. In addition, some studies have also characterized other B cell subsets involved in antigen presentation and regulating the immune response beyond antibody secretion. However, not all B cell subsets play a positive role in the immune response to chronic HBV infection, and various B cell subsets jointly mediate persistent HBV infection, tolerance, and liver damage. Thus, we further sought to elucidate the multiple functions of B cells to gain novel insight into the understanding of chronic hepatitis B (CHB) pathogenesis. We also reviewed the current immunotherapies targeting B cells to explore novel therapeutic interventions for the treatment of chronic HBV infection.
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Affiliation(s)
- Ying Cai
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Wenwei Yin
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Padovan M, Filippini M, Tincani A, Lanciano E, Bruschi E, Epis O, Garau P, Mathieu A, Celletti E, Giani L, Tomietto P, Atzeni F, Sarzi Puttini P, Zuliani F, De Vita S, Trotta F, Grilli A, Puoti M, Govoni M. Safety of Abatacept in Rheumatoid Arthritis With Serologic Evidence of Past or Present Hepatitis B Virus Infection. Arthritis Care Res (Hoboken) 2017; 68:738-43. [PMID: 26555747 DOI: 10.1002/acr.22786] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 09/08/2015] [Accepted: 11/03/2015] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Rheumatoid arthritis (RA) with concomitant hepatitis B virus (HBV) infection represents a therapeutic challenge due to the risk of HBV reactivation under immunosuppressive treatment. To date there are few data coming from anecdotal case reports that concern HBV reactivation following treatment with abatacept. This observational retrospective study was aimed to assess the safety profile of abatacept in this particular clinical setting. METHODS Eleven Italian rheumatologic centers provided data from patients with RA and positive HBV serology treated with intravenous abatacept. HBV markers and clinical and laboratory data were checked at followup visits every 3 months. RESULTS In total, 72 patients were included in the study: 47 inactive carriers, 21 occult carriers, and 4 chronic active carriers for HBV. At baseline all of the patients had normal liver function tests and low or undetectable HBV DNA levels, except for those with chronic active hepatitis. Thirteen patients received prophylaxis with lamivudine, and 4 received treatment with adefovir or tenofovir. At the end of the 24-month followup period, 49 patients were being treated. Data from 316 followup visits showed that abatacept was safe. No patients experienced reactivation of hepatitis B. Treatment withdrawals (23 patients) were due to lack of efficacy, subject decision/lost at followup, or adverse events not related to HBV infection. CONCLUSION Our study provides reassuring data about the safety profile of abatacept in RA with concomitant HBV infection without universal antiviral prophylaxis. Further prospective studies are needed to confirm these preliminary results.
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Affiliation(s)
- Melissa Padovan
- Università degli studi di Ferrara and Azienda Ospedaliero Universitaria S. Anna di Ferrara, Ferrara, Italy
| | | | | | | | | | - Oscar Epis
- A. O. Ospedale Niguarda Cà Granda, Milano, Italy
| | - Pietro Garau
- Policlinico Universitario Monserrato, Cagliari, Italy
| | | | | | | | - Paola Tomietto
- Azienda Ospedaliero-Universitaria Ospedali Riuniti di Trieste, Trieste, Italy
| | | | | | | | | | - Francesco Trotta
- Università degli studi di Ferrara and Azienda Ospedaliero Universitaria S. Anna di Ferrara, Ferrara, Italy
| | - Anastasio Grilli
- Università degli studi di Ferrara and Azienda Ospedaliero Universitaria S. Anna di Ferrara, Ferrara, Italy
| | | | - Marcello Govoni
- Università degli studi di Ferrara and Azienda Ospedaliero Universitaria S. Anna di Ferrara, Ferrara, Italy
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Li ZQ, Hu CL, Yu P, Gu XY, Zhang JJ, Li H, Zhang HY, Lv J, Liu YM, Zeng QL, Yan JY, Yu ZJ, Zhang Y. 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. Clin Res Hepatol Gastroenterol 2017; 41:311-318. [PMID: 28237828 DOI: 10.1016/j.clinre.2016.11.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 10/27/2016] [Accepted: 11/08/2016] [Indexed: 02/04/2023]
Abstract
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. METHODS We investigated 1200 patients with CHB who were treated with NAs for at least four years and evaluated the association of the variables ALT, HBsAg, HBV DNA, age and platelet count with the occurrence of HCC. We used multivariable analysis to identify independent risk factors for the development of HCC. RESULTS HCC developed in 153 NA-treated patients. Serum HBV DNA levels of 18.17% (218/1200) patients were>2000IU/mL. The median level of liver stiffness measurement (LSM) of all patients was 8.3±6.7kPa vs. 19.8±10.1kPa in patients with HCC. Advanced age, lower platelet counts, positive HBV DNA load, lower ALB concentration and relatively advanced liver disease were associated with an increased risk of developing HCC. Further, TGF-β and IFN-γ levels were higher and lower in patients with HCC or CHB, respectively. CONCLUSIONS Hepato-carcinogenesis occurred more frequently in patients with a positive HBV DNA load and relatively advanced liver disease. Therefore, it is important to administer antiviral therapy to patients with CHB before they develop HBV-related cirrhosis.
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Affiliation(s)
- Zhi-Qin Li
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China; Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Chun-Ling Hu
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Ping Yu
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Xin-Yu Gu
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Jia-Jia Zhang
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Hua Li
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Hong-Yu Zhang
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Jun Lv
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Yan-Min Liu
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Qing-Lei Zeng
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Jing-Ya Yan
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China.
| | - Zu-Jiang Yu
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
| | - Yi Zhang
- Department of infectious disease, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China; Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China; Department of Oncology, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China; School of Life Sciences, Zhengzhou University, 450052 Zhengzhou, Henan, China; Key Laboratory of Clinical-Medicine, the First Affiliated Hospital of Zhengzhou University, 450052 Zhengzhou, Henan, China
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Yin JW, Ping Huang M, Zhong B. Intrahepatic Toll-Like Receptor 3 in Chronic HBV Infection Subjects: Asymptomatic Carriers, Active Chronic Hepatitis, Cirrhosis, and Hepatocellular Carcinoma. HEPATITIS MONTHLY 2016; 16:e34432. [PMID: 27630720 PMCID: PMC5010883 DOI: 10.5812/hepatmon.34432] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 04/28/2016] [Accepted: 05/01/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND The entire disease spectrum of chronic HBV infection (CHB) includes asymptomatic carriers (AC), active chronic hepatitis (ACH), cirrhosis (Cir), and hepatocellular carcinoma (HCC). Previous study have demonstrated that the costimulation profiles from the livers of patients influenced immune responses and played various immunological roles in AC, ACH, Cir, and HCC. In addition, activation of TLR3 signaling in the liver may contribute to HBV clearance, although some HBV components are able to block TLR3 signaling and counteract HBV clearance through positive or negative feedback loops. Previous clinical studies have demonstrated that different TLR3 expressions are present in ACH patients, but no studies investigated the expression of TLR3 proteins in the livers of patients with AC, Cir, or HCC. OBJECTIVES This study investigated intrahepatic TLR3 expression throughout the entire disease spectrum of CHB patients and assessed the interrelations between TLR3 and costimulation proteins. PATIENTS AND METHODS Patients with ACH, Cir, HCC, and AC and healthy donors (HD) were recruited. TLR3 expression in the livers of patients were investigated using western blot analysis and immunohistochemistry. Correlations between TLR3 and costimulation proteins, including CD80, CD86, CD83, CD28, CTLA-4, CD40, and ICAM-1, were assessed. RESULTS The TLR3 protein in the ACH group tended toward reduction although the P Value of the comparison between the ACH group and HD group was not statistically significant. The TLR3 levels in the HCC, AC, and Cir groups were higher than those in the HD and ACH groups. TLR3 was not interrelated with all costimulation proteins in the DCs and T cells in all five groups. No group presented any interrelation between TLR3 and CD40, except the AC group. CONCLUSIONS The AC, HCC, and Cir patients displayed increased levels of the intrahepatic TLR3 protein compared to the HD and AC patients. Both activation of TLR3/INF-β signaling and inhibition of TLR3/INF-β signaling by HBV components influenced TLR3 expression in the AC, ACH, Cir, and HCC subjects. However, TLR3 signaling did not influence the expression of costimulatory protein in the ACH, Cir, or HCC patients. TLR3/ IFN-β signaling did influence immune responses in the livers of CHB patients.
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Affiliation(s)
- Jia Wen Yin
- The State Key Laboratory of Bioelectronics, Southeast University, Nanjing, China
- Corresponding Authors: Bei Zhong, The Affiliated Qingyuan People Hospital, Jinan University Medical School, 22 Yinquannan Road, Qingyuan, Guangdong, 511518, China. Tel: +86-7633300913, Fax: +86-7633300913, E-mail: ; Jia Wen Yin, The State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China. Tel: +86-2583793620, Fax: +86-2583793620, E-mail:
| | - Mao Ping Huang
- The Affiliated Qingyuan People Hospital, Jinan University Medical School, Qingyuan, Guangdong, China
| | - Bei Zhong
- The Affiliated Qingyuan People Hospital, Jinan University Medical School, Qingyuan, Guangdong, China
- Corresponding Authors: Bei Zhong, The Affiliated Qingyuan People Hospital, Jinan University Medical School, 22 Yinquannan Road, Qingyuan, Guangdong, 511518, China. Tel: +86-7633300913, Fax: +86-7633300913, E-mail: ; Jia Wen Yin, The State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China. Tel: +86-2583793620, Fax: +86-2583793620, E-mail:
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Jia H, Liu C, Yang Y, Zhu H, Chen F, Liu J, Zhou L. Inhibition of duck hepatitis B virus replication by mimic peptides in vitro. Exp Ther Med 2015; 10:1697-1703. [PMID: 26640539 PMCID: PMC4665119 DOI: 10.3892/etm.2015.2757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 07/10/2015] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to investigate the inhibitory effect of specific mimic peptides targeting duck hepatitis B virus polymerase (DHBVP) on duck hepatitis B virus (DHBV) replication in primary duck hepatocytes. Phage display technology (PDT) was used to screen for mimic peptides specifically targeting DHBVP and the associated coding sequences were determined using DNA sequencing. The selected mimic peptides were then used to treat primary duck hepatocytes infected with DHBV in vitro. Infected hepatocytes expressing the mimic peptides intracellularly were also prepared. The cells were divided into mimic peptide groups (EXP groups), an entecavir-treated group (positive control) and a negative control group. The medium was changed every 48 h. Following a 10-day incubation, the cell supernatants were collected. DHBV-DNA in the cellular nucleus, cytoplasm and culture supernatant was analyzed by quantitative polymerase chain reaction (qPCR). Eight mimic peptides were selected following three PDT screening rounds for investigation in the DHBV-infected primary duck hepatocytes. The qPCR results showed that following direct treatment with mimic peptide 2 or 7, intracellular expression of mimic peptide 2 or 7, or treatment with entecavir, the DHBV-DNA levels in the culture supernatant and cytoplasm of duck hepatocytes were significantly lower than those in the negative control (P<0.05). The cytoplasmic DHBV-DNA content of the cells treated with mimic peptide 7 was lower than that in the other groups (P<0.05). In addition, the DHBV-DNA content of the nuclear fractions following the intracellular expression of mimic peptide 7 was significantly lower than that in the other groups (P<0.05). Mimic peptides specifically targeting DHBVP, administered directly or expressed intracellularly, can significantly inhibit DHBV replication in vitro.
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Affiliation(s)
- Hongyu Jia
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Changhong Liu
- Department of Gastroenterology, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250013, P.R. China
| | - Ying Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Haihong Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Feng Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Jihong Liu
- Department of Medical Oncology, The First People's Hospital of Hangzhou, Hangzhou, Zhejiang 310009, P.R. China
| | - Linfu Zhou
- Department of Molecular Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310038, P.R. China
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10
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Zuo C, Xia M, Wu Q, Zhu H, Liu J, Liu C. Role of antiviral therapy in reducing recurrence and improving survival in hepatitis B virus-associated hepatocellular carcinoma following curative resection (Review). Oncol Lett 2014; 9:527-534. [PMID: 25624883 PMCID: PMC4301553 DOI: 10.3892/ol.2014.2727] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 11/07/2014] [Indexed: 01/27/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the major causes of cancer-related mortality worldwide, with the majority of cases associated with persistent hepatitis B virus (HBV) or hepatitis C virus infection. In particular, chronic HBV infection is a predominant risk factor for the development of HCC in Asian and African populations. Hepatic resection, liver transplantion and radiofrequency ablation are increasingly used for the curative treatment of HCC, however, the survival rate of HCC patients who have undergone curative resection remains unsatisfactory due to the high recurrence rate. HCC is a complex disease that is typically resistant to the most commonly used types of chemotherapy and radiotherapy; therefore, the development of novel treatment strategies is required to improve the survival rate of this disease. A high viral load of HBV DNA is the most important correctable risk factor for HCC recurrence, for example nucleos(t)ide analogs improve the outcome following curative resection of HBV-associated HCC, and interferon-α exhibits antitumor activity against various types of cancer via direct inhibitory effects on tumor cells, anti-angiogenesis, enhanced immunogenicity of tumors, immunomodulatory effects and liver dysfunction. In the present review, antiviral treatment for HBV-associated HCC is described as a strategy to reduce recurrence and improve survival.
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Affiliation(s)
- Chaohui Zuo
- Department of Gastroduodenal and Pancreatic Surgery, Translation Medicine Research Center of Liver Cancer, Hunan Province Tumor Hospital and Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013, P.R. China ; Department of Pathology, Immunology and Laboratory Medicine and Shands Cancer Center, University of Florida, Gainesville, FL 32610-0275, USA
| | - Man Xia
- Department of Pathology, Immunology and Laboratory Medicine and Shands Cancer Center, University of Florida, Gainesville, FL 32610-0275, USA ; Department of Gynaecological Oncology, Hunan Province Tumor Hospital and Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013, P.R. China
| | - Qunfeng Wu
- Department of Pathology, Immunology and Laboratory Medicine and Shands Cancer Center, University of Florida, Gainesville, FL 32610-0275, USA
| | - Haizhen Zhu
- Department of Gastroduodenal and Pancreatic Surgery, Translation Medicine Research Center of Liver Cancer, Hunan Province Tumor Hospital and Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jingshi Liu
- Department of Gastroduodenal and Pancreatic Surgery, Translation Medicine Research Center of Liver Cancer, Hunan Province Tumor Hospital and Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan 410013, P.R. China
| | - Chen Liu
- Department of Pathology, Immunology and Laboratory Medicine and Shands Cancer Center, University of Florida, Gainesville, FL 32610-0275, USA
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