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Wang ZY, Gao ST, Gou XJ, Qiu FR, Feng Q. IL-1 receptor-associated kinase family proteins: An overview of their role in liver disease. Eur J Pharmacol 2024:176773. [PMID: 38936453 DOI: 10.1016/j.ejphar.2024.176773] [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: 03/19/2024] [Revised: 06/16/2024] [Accepted: 06/23/2024] [Indexed: 06/29/2024]
Abstract
The interleukin-1 receptor-associated kinase (IRAK) family is a group of serine-threonine kinases that regulates various cellular processes via toll-like receptor (TLR)/interleukin-1 receptor (IL1R)-mediated signaling. The IRAK family comprises four members, including IRAK1, IRAK2, IRAK3, and IRAK4, which play an important role in the expression of various inflammatory genes, thereby contributing to the inflammatory response. IRAKs are key proteins in chronic and acute liver diseases, and recent evidence has implicated IRAK family proteins (IRAK1, IRAK3, and IRAK4) in the progression of liver-related disorders, including alcoholic liver disease, non-alcoholic steatohepatitis, hepatitis virus infection, acute liver failure, liver ischemia-reperfusion injury, and hepatocellular carcinoma. In this article, we provide a comprehensive review of the role of IRAK family proteins and their associated inflammatory signaling pathways in the pathogenesis of liver diseases. The purpose of this study is to explore whether IRAK family proteins can serve as the main target for the treatment of liver related diseases.
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Affiliation(s)
- Zhuo-Yuan Wang
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Si-Ting Gao
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiao-Jun Gou
- Central Laboratory, Baoshan District Hospital of Integrated Traditional Chinese and Western Medicine of Shanghai, Shanghai University of Traditional Chinese Medicine, Shanghai 201999, China
| | - Fu-Rong Qiu
- Laboratory of Clinical Pharmacokinetics, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Qin Feng
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Central Laboratory, ShuGuang Hospital Affiliated to Shanghai University of Chinese Traditional Medicine, Shanghai 201203, China; Key Laboratory of Liver and Kidney Diseases, Shanghai University of Traditional Chinese Medicine, Ministry of Education, Shanghai 201203, China.
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2
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Zhang L, Kuang G, Gong X, Huang R, Zhao Z, Li Y, Wan J, Wang B. Piperine attenuates hepatic ischemia/reperfusion injury via suppressing the TLR4 signaling cascade in mice. Transpl Immunol 2024; 84:102033. [PMID: 38484898 DOI: 10.1016/j.trim.2024.102033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Piperine, the major active substance in black pepper, has been shown to have anti-inflammatory and antioxidant effects in several ischemic diseases. However, the role of piperine in hepatic ischemia/reperfusion injury (HIRI) and its underlying mechanisms remain unclear. In this study, the mice were administered piperine (30 mg/kg) intragastric administration before surgery. After 24 h of hepatic ischemia-reperfusion, liver histopathological evaluation, serum transaminase measurements, and TUNEL analysis were performed. The infiltration of inflammatory cells and production of inflammatory mediators in the liver tissue were determined by immunofluorescence and immunohistochemical staining. The protein levels of toll-like receptor 4 (TLR4) and related proteins such as nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), interleukin-1 receptor-associated kinase 1 (IRAK1), p65, and p38 were detected by western blotting. The results showed that plasma aminotransferase (ALT), aspartate aminotransferase (AST), hepatocyte apoptosis, oxidative stress, and inflammatory cell infiltration significantly increased in HIRI mice. Piperine pretreatment notably repaired liver function, improved the histopathology and apoptosis of liver cells, alleviated oxidative stress injury, and reduced inflammatory cell infiltration. Further analysis showed that piperine attenuated tumor necrosis factor-a (TNF-α) and interleukin 6 (IL-6) production and reduced TLR4 activation and phosphorylation of IRAK1, p38, and NF-κB in HIRI. Piperine has a protective effect against HIRI through the TLR4/IRAK1/NF-κB signaling pathway and may be a safer option for future clinical treatment and prevention of ischemia-related diseases.
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Affiliation(s)
- Lidan Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ge Kuang
- Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, China
| | - Xia Gong
- Department of Anatomy, Chongqing Medical University, Chongqing 400016, China
| | - Rui Huang
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310058, China
| | - Zizuo Zhao
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yan Li
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jingyuan Wan
- Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, China.
| | - Bin Wang
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Zhang X, Li Y, Huan C, Hou Y, Liu R, Shi H, Zhang P, Zheng B, Wang Y, Wang H, Zhang W. LncRNA NKILA inhibits HBV replication by repressing NF-κB signalling activation. Virol Sin 2024; 39:44-55. [PMID: 37832719 PMCID: PMC10877346 DOI: 10.1016/j.virs.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023] Open
Abstract
Hepatitis B virus (HBV) infection results in liver cirrhosis and hepatocellular carcinoma (HCC). HBx/nuclear factor (NF)-κB pathway plays a role in HBV replication. However, whether NF-κB-interacting long noncoding RNA (NKILA), a suppressor of NF-κB activation, regulates HBV replication remains largely unknown. In this study, gain-and-loss experiments showed that NKILA inhibited HBV replication by inhibiting NF-κB activity. In turn, HBV infection down-regulated NKILA expression. In addition, expression levels of NKILA were lower in the peripheral blood-derived monocytes (PBMCs) of HBV-positive patients than in healthy individuals, which were correlated with HBV viral loads. And a negative correlation between NKILA expression level and HBV viral loads was observed in blood serum from HBV-positive patients. Lower levels of endogenous NKILA were also observed in HepG2 cells expressing a 1.3-fold HBV genome, HBV-infected HepG2-NTCP cells, stable HBV-producing HepG2.2.15 and HepAD38 cells, compared to those HBV-negative cells. Furthermore, HBx was required for NKILA-mediated inhibition on HBV replication. NKILA decreased HBx-induced NF-κB activation by interrupting the interaction between HBx and p65, whereas NKILA mutants lack of essential domains for NF-ĸB inhibition, lost the ability to inhibit HBV replication. Together, our data demonstrate that NKILA may serve as a suppressor of HBV replication via NF-ĸB signalling.
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Affiliation(s)
- Xi Zhang
- Department of Infectious Diseases, Center of Infectious Diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, 130012, China; Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China; Department of Ophthalmology, The First Hospital of Jilin University, Changchun, 130012, China
| | - Yuanyuan Li
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China
| | - Chen Huan
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China
| | - Yubao Hou
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China
| | - Rujia Liu
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China
| | - Hongyun Shi
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China
| | - Peng Zhang
- Department of Infectious Diseases, Center of Infectious Diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, 130012, China
| | - Baisong Zheng
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China
| | - Yingchao Wang
- Hepatobiliary Pancreatic Surgery, The First Hospital of Jilin University, Changchun, 130012, China.
| | - Hong Wang
- Department of Infectious Diseases, Center of Infectious Diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, 130012, China; Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China.
| | - Wenyan Zhang
- Department of Infectious Diseases, Center of Infectious Diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, 130012, China; Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130012, China.
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Liu Y, Chen H, Yan X, Zhang J, Deng Z, Huang M, Gu J, Zhang J. MyD88 in myofibroblasts enhances nonalcoholic fatty liver disease-related hepatocarcinogenesis via promoting macrophage M2 polarization. Cell Commun Signal 2024; 22:86. [PMID: 38291436 PMCID: PMC10826060 DOI: 10.1186/s12964-024-01489-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/11/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a major cause of chronic liver diseases and has emerged as the leading factor in the pathogenesis of hepatocellular carcinoma (HCC). MyD88 contributes to the development of HCC. However, the underlying mechanism by which MyD88 in myofibroblasts regulates NAFLD-associated liver cancer development remains unknown. RESULTS Myofibroblast MyD88-deficient (SMAMyD88-/-) mice were protected from diet-induced obesity and developed fewer and smaller liver tumors. MyD88 deficiency in myofibroblasts attenuated macrophage M2 polarization and fat accumulation in HCC tissues. Mechanistically, MyD88 signaling in myofibroblasts enhanced CCL9 secretion, thereby promoting macrophage M2 polarization. This process may depend on the CCR1 receptor and STAT6/ PPARβ pathway. Furthermore, liver tumor growth was attenuated in mice treated with a CCR1 inhibitor. CCLl5 (homologous protein CCL9 in humans) expression was increased in myofibroblasts of HCC and was associated with shorter survival of patients with HCC. Thus, our results indicate that MyD88 in myofibroblasts promotes NAFLD-related HCC progression and may be a promising therapeutic target for HCC treatment. CONCLUSION This study demonstrates that MyD88 in myofibroblasts can promote nonalcoholic fatty liver disease-related hepatocarcinogenesis by enhancing macrophage M2 polarization, which might provide a potential molecular therapeutic target for HCC.
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Affiliation(s)
- Yu Liu
- College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, P.R. China
| | - Haiqiang Chen
- College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, P.R. China
| | - Xuanxuan Yan
- College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, P.R. China
| | - Jie Zhang
- College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, P.R. China
| | - Zhenzhong Deng
- Department of Oncology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, P. R. China
| | - Maosheng Huang
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jianchun Gu
- Department of Oncology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, P. R. China.
| | - Jinhua Zhang
- College of Life Science and Bioengineering, Beijing Jiaotong University, No.3 Shangyuancun Road, Beijing, 100044, P.R. China.
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Jiang P, Huang Y, Mao K, Lin Y, Li D, Chen F, Lin N. Association between hepatitis B virus replication during pregnancy and perinatal outcomes: a retrospective cohort study. Ann Med 2023; 55:2295396. [PMID: 38134759 PMCID: PMC10763828 DOI: 10.1080/07853890.2023.2295396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND The effect of hepatitis B virus (HBV) replication during pregnancy on the outcomes of pregnancies remains to be elucidated. OBJECTIVES This study aimed to investigate the association between HBV replication and adverse maternal and infant outcomes. METHODS We retrospectively analysed the clinical data of 836 pregnant inpatients with hepatitis B surface antigen positivity who delivered at two provincial tertiary grade A hospitals in the Fujian province between June 2016 and October 2020. RESULTS The incidence of intrahepatic cholestasis of pregnancy, hypertensive syndrome complicating pregnancy, gestational diabetes mellitus, preterm birth, macrosomia, growth restriction, and vaginal infections did not differ in the HBV replication and non-replication groups (p > 0.05); however, the rates of caesarean section (p = 0.017; OR, 1.423; 95% CI, 1.065-1.902) and neonatal jaundice (p < 0.001; OR, 2.361; 95% CI, 1.498-3.721) were higher in the replication group than that in the non-replication group. After using propensity score analysis to adjust for alanine transaminase and aspartate aminotransferase levels in both groups, the replication group was still found to have an increased risk for caesarean section (p < 0.001; OR, 2.367; 95% CI, 1.668-3.359) and their infants had higher rates of neonatal jaundice (p < 0.001; OR, 12.605; 95% CI, 4.456-35.656). CONCLUSIONS Our findings contribute to a better understanding of the association between maternal HBV replication status and perinatal outcomes. Pregnant women with HBV replication face an increased risk of caesarean section, and their infants appear to have a higher risk for neonatal jaundice.
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Affiliation(s)
- Pingying Jiang
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Yongzhu Huang
- Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Kaiyi Mao
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Yongxu Lin
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Dan Li
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Fenglin Chen
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Na Lin
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Clinical Research Center for Digestive System Tumors and Upper Gastrointestinal Diseases, Fuzhou, China
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Wang J, Zhang X, Ma X, Chen D, Cai M, Xiao L, Li J, Huang Z, Huang Y, Lian Y. Blockage of CacyBP inhibits macrophage recruitment and improves anti-PD-1 therapy in hepatocellular carcinoma. J Exp Clin Cancer Res 2023; 42:303. [PMID: 37968706 PMCID: PMC10652496 DOI: 10.1186/s13046-023-02885-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/03/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Despite remarkable advancements in cancer immunotherapy, the overall response rate to anti-programmed cell death-1 (anti-PD-1) therapy in hepatocellular carcinoma (HCC) patients remains low. Our previous study has demonstrated the critical role of CacyBP/SIP (Calcyclin-Binding Protein and Siah-1 Interacting Protein) as a regulator of HCC development and progression. However, the possible impact of CacyBP on the tumor immune microenvironment has not yet been clarified. METHODS The expressions of CacyBP and Myd88 in HCC cell lines and tissues was detected by bioinformatics analysis, real-time quantitative PCR, western blotting and immunohistochemistry. The interaction between CacyBP and Myd88 was measured using co-immunoprecipitation and immunofluorescence. In vitro and in vivo assays were used to investigate the regulation of CacyBP on tumor-associated macrophages (TAMs). RESULTS We identified that CacyBP was positively correlated with Myd88, a master regulator of innate immunity, and Myd88 was a novel binding substrate downstream of CacyBP in HCC. Additionally, CacyBP protected Myd88 from Siah-1-mediated proteasome-dependent degradation by competitively binding to its Toll/interleukin-1 receptor (TIR) domain. Inhibition of CacyBP-Myd88 signaling subsequently diminished HDAC1-mediated H3K9ac and H3K27ac modifications on the CX3CL1 promoter and reduced its transcription and secretion in HCC cells. Moreover, by using in vitro and in vivo strategies, we demonstrated that depletion of CacyBP impaired the infiltration of TAMs and the immunosuppressive state of the tumor microenvironment, further sensitizing HCC-bearing anti-PD-1 therapy. CONCLUSIONS Our findings suggest that targeting CacyBP may be a novel treatment strategy for improving the efficacy of anti-PD-1 immunotherapy in HCC.
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Affiliation(s)
- Jialiang Wang
- Guangdong Provincial Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Xiaoyu Zhang
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Xinyi Ma
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Dongmei Chen
- Guangdong Provincial Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Meina Cai
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Lexin Xiao
- Guangdong Provincial Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Jing Li
- Guangdong Provincial Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Zexuan Huang
- Guangdong Provincial Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China
| | - Yuehua Huang
- Guangdong Provincial Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China.
- Department of Infectious Diseases, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China.
| | - Yifan Lian
- Guangdong Provincial Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd., Guangzhou, 510630, China.
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Li X, Hua S, Fang D, Fei X, Tan Z, Zheng F, Wang W, Fang M. RAGE deficiency ameliorates autoimmune hepatitis involving inhibition of IL-6 production via suppressing protein Arid5a in mice. Clin Exp Med 2023; 23:2167-2179. [PMID: 36454447 DOI: 10.1007/s10238-022-00960-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022]
Abstract
Activation of T cells and pro-inflammatory cytokines are essential for human autoimmune hepatitis. RAGE is one of the receptors for the inflammatory alarm molecule high mobility group box 1 (HMGB1), and it is involved in autoimmune hepatitis. However, the molecular mechanism of RAGE in the context of autoimmune hepatitis remains elusive. This study aimed to identify the function and mechanism of RAGE in autoimmune hepatitis. The role and underlying mechanisms of RAGE signaling-driven immune inflammatory response in ConA-induced experimental hepatitis were examined using the RAGE-deficient mice. We found that the RAGE deficiency protected the mouse from liver inflammatory injury caused by the ConA challenge. mRNA expression of VCAM-1, IL-6, and TNF-α within the livers is markedly decreased in RAGE-deficient mice compared to wild-type mice. In parallel, RAGE deficiency leads to reduced levels of the serum pro-inflammatory cytokines IL-6 and TNF-α as compared with wild-type control mice. RAGE-deficient mice exhibit increased hepatic NK cells and decreased CD4+ T cells compared with wild-type control mice. Notably, in vivo blockade of IL-6 in wild-type mice significantly protected mice from ConA-induced hepatic injury. Furthermore, RAGE deficiency impaired IL-6 production and was associated with decreased expression of Arid5a in liver tissues, a half-life IL-6 mRNA regulator. RAGE signaling is important in regulating the development of autoimmune hepatitis. Immune regulation of RAGE may represent a novel therapeutic strategy to prevent immune-mediated liver injury.
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Affiliation(s)
- Xiaoxiao Li
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan, 430030, China
| | - Shuyao Hua
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan, 430030, China
| | - Dai Fang
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Xiaoyuan Fei
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan, 430030, China
| | - Zheng Tan
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan, 430030, China
| | - Fang Zheng
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan, 430030, China
| | - Weimin Wang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan, 430030, China
| | - Min Fang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan, 430030, China.
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Xiao J, He J, He Z, Wang C, Li Y, Yan X, Chen Y, Sun Z, Liu J, Liang M, Wu Y. Chlamydia psittaci hypothetical inclusion membrane protein CPSIT_0842 evokes a pro-inflammatory response in monocytes via TLR2/TLR4 signaling pathways. Vet Microbiol 2023; 280:109693. [PMID: 36889151 DOI: 10.1016/j.vetmic.2023.109693] [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: 03/23/2022] [Revised: 02/05/2023] [Accepted: 02/15/2023] [Indexed: 02/18/2023]
Abstract
Chlamydia psittaci (C. psittaci) is an obligate intracellular pathogen that resides within a membrane-bound compartment known as the inclusion. Upon entering the host cell, Chlamydiae secrete numerous proteins to modify the inclusion membrane. Inclusion membrane (Inc) proteins are important pathogenic factors in Chlamydia and play crucial roles in the growth and development of Chlamydia. In the present study, the C. psittaci protein, CPSIT_0842, was identified and shown to localize to the inclusion membrane. Temporal analysis revealed that CPSIT_0842 is an early expression protein of Chlamydia. Moreover, this protein was shown to induce the expression of pro-inflammatory cytokines IL-6 and IL-8 in human monocytes (THP-1 cells) via the TLR2/TLR4 signaling pathway. CPSIT_0842 increases the expression of TLR2, TLR4, and adaptor MyD88. Suppression of TLR2, TLR4, and MyD88 markedly attenuated CPSIT_0842-induced production of IL-6 and IL-8. MAP kinases and NF-κB, important downstream molecules of TLR receptors in inflammatory signaling pathways, were also confirmed to be activated by CPSIT_0842. CPSIT_0842-induced production of IL-6 was reliant on activation of the ERK, p38, and NF-κB signaling pathways while IL-8 expression was regulated by the ERK, JNK, and NF-κB signaling pathways. Specific inhibitors of these signaling pathways significantly decreased CPSIT_0842-mediated expression of IL-6 and IL-8. Together these findings demonstrate that CPSIT_0842 upregulates the expression of IL-6 and IL-8 via TLR-2/TLR4-mediated MAPK and NF-κB signaling pathways in THP-1 cells. Exploring these molecular mechanisms enhances our understanding of C. psittaci pathogenesis.
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Affiliation(s)
- Jian Xiao
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; The Affiliated Nanhua Hospital, Department of laboratory medicine, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China
| | - Jun He
- The Affiliated Nanhua Hospital, Department of laboratory medicine, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Zhangping He
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; The Affiliated Nanhua Hospital, Department of laboratory medicine, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China
| | - Chuan Wang
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China
| | - Yumeng Li
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China
| | - Xiaoliang Yan
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China
| | - Yuqing Chen
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China
| | - Zhenjie Sun
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China
| | - Jian Liu
- The Affiliated Nanhua Hospital, Department of laboratory medicine, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Mingxing Liang
- The Affiliated Huaihua Hospital, Department of laboratory medicine, Huaihua, Hunan, 418000, China
| | - Yimou Wu
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China; Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, Hunan, 421001, China; Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, Hunan, 421001, China.
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9
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Glover A, Zhang Z, Shannon-Lowe C. Deciphering the roles of myeloid derived suppressor cells in viral oncogenesis. Front Immunol 2023; 14:1161848. [PMID: 37033972 PMCID: PMC10076641 DOI: 10.3389/fimmu.2023.1161848] [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: 02/08/2023] [Accepted: 03/10/2023] [Indexed: 04/11/2023] Open
Abstract
Myeloid derived suppressor cells (MDSCs) are a heterogenous population of myeloid cells derived from monocyte and granulocyte precursors. They are pathologically expanded in conditions of ongoing inflammation where they function to suppress both innate and adaptive immunity. They are subdivided into three distinct subsets: monocytic (M-) MDSC, polymorphonuclear (or neutrophilic) (PMN-) MDSC and early-stage (e-) MDSC that may exhibit differential function in different pathological scenarios. However, in cancer they are associated with inhibition of the anti-tumour immune response and are universally associated with a poor prognosis. Seven human viruses classified as Group I carcinogenic agents are jointly responsible for nearly one fifth of all human cancers. These viruses represent a large diversity of species, including DNA, RNA and retroviridae. They include the human gammaherpesviruses (Epstein Barr virus (EBV) and Kaposi's Sarcoma-Associated Herpesvirus (KSHV), members of the high-risk human papillomaviruses (HPVs), hepatitis B and C (HBV, HCV), Human T cell leukaemia virus (HTLV-1) and Merkel cell polyomavirus (MCPyV). Each of these viruses encode an array of different oncogenes that perturb numerous cellular pathways that ultimately, over time, lead to cancer. A prerequisite for oncogenesis is therefore establishment of chronic infection whereby the virus persists in the host cells without being eradicated by the antiviral immune response. Although some of the viruses can directly modulate the immune response to enable persistence, a growing body of evidence suggests the immune microenvironment is modulated by expansions of MDSCs, driven by viral persistence and oncogenesis. It is likely these MDSCs play a role in loss of immune recognition and function and it is therefore essential to understand their phenotype and function, particularly given the increasing importance of immunotherapy in the modern arsenal of anti-cancer therapies. This review will discuss the role of MDSCs in viral oncogenesis. In particular we will focus upon the mechanisms thought to drive the MDSC expansions, the subsets expanded and their impact upon the immune microenvironment. Importantly we will explore how MDSCs may modulate current immunotherapies and their impact upon the success of future immune-based therapies.
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10
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Many Ways to Communicate-Crosstalk between the HBV-Infected Cell and Its Environment. Pathogens 2022; 12:pathogens12010029. [PMID: 36678377 PMCID: PMC9866324 DOI: 10.3390/pathogens12010029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Chronic infection with the hepatitis B virus (HBV) affects an estimated 257 million people worldwide and can lead to liver diseases such as cirrhosis and liver cancer. Viral replication is generally considered not to be cytopathic, and although some HBV proteins may have direct carcinogenic effects, the majority of HBV infection-related disease is related to chronic inflammation resulting from disrupted antiviral responses and aberrant innate immune reactions. Like all cells, healthy and HBV-infected cells communicate with each other, as well as with other cell types, such as innate and adaptive immune cells. They do so by both interacting directly and by secreting factors into their environment. Such factors may be small molecules, such as metabolites, single viral proteins or host proteins, but can also be more complex, such as virions, protein complexes, and extracellular vesicles. The latter are small, membrane-enclosed vesicles that are exchanged between cells, and have recently gained a lot of attention for their potential to mediate complex communication and their potential for therapeutic repurposing. Here, we review how HBV infection affects the communication between HBV-infected cells and cells in their environment. We discuss the impact of these interactions on viral persistence in chronic infection, as well as their relation to HBV infection-related pathology.
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11
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Yang G, Wan P, Zhang Y, Tan Q, Qudus MS, Yue Z, Luo W, Zhang W, Ouyang J, Li Y, Wu J. Innate Immunity, Inflammation, and Intervention in HBV Infection. Viruses 2022; 14:2275. [PMID: 36298831 PMCID: PMC9609328 DOI: 10.3390/v14102275] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/12/2022] [Accepted: 10/15/2022] [Indexed: 07/30/2023] Open
Abstract
Hepatitis B virus (HBV) infection is still one of the most dangerous viral illnesses. HBV infects around 257 million individuals worldwide. Hepatitis B in many individuals ultimately develops hepatocellular carcinoma (HCC), which is the sixth most common cancer and the third leading cause of cancer-related deaths worldwide. The innate immunity acts as the first line of defense against HBV infection through activating antiviral genes. Along with the immune responses, pro-inflammatory cytokines are triggered to enhance the antiviral responses, but this may result in acute or chronic liver inflammation, especially when the clearance of virus is unsuccessful. To a degree, the host innate immune and inflammatory responses dominate the HBV infection and liver pathogenesis. Thus, it is crucial to figure out the signaling pathways involved in the activation of antiviral factors and inflammatory cytokines. Here, we review the interplay between HBV and the signal pathways that mediates innate immune responses and inflammation. In addition, we summarize current therapeutic strategies for HBV infection via modulating innate immunity or inflammation. Characterizing the mechanisms that underlie these HBV-host interplays might provide new approaches for the cure of chronic HBV infection.
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Affiliation(s)
- Ge Yang
- Foshan Institute of Medical Microbiology, Foshan 528315, China
| | - Pin Wan
- Foshan Institute of Medical Microbiology, Foshan 528315, China
| | - Yaru Zhang
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University, Guangzhou 510632, China
| | - Qiaoru Tan
- Foshan Institute of Medical Microbiology, Foshan 528315, China
| | - Muhammad Suhaib Qudus
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Zhaoyang Yue
- Foshan Institute of Medical Microbiology, Foshan 528315, China
| | - Wei Luo
- Clinical Research Institute, The First People’s Hospital, Foshan 528000, China
| | - Wen Zhang
- Guangdong Longfan Biological Science and Technology, Foshan 528315, China
| | - Jianhua Ouyang
- Guangdong Longfan Biological Science and Technology, Foshan 528315, China
| | - Yongkui Li
- Foshan Institute of Medical Microbiology, Foshan 528315, China
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University, Guangzhou 510632, China
- Guangdong Longfan Biological Science and Technology, Foshan 528315, China
| | - Jianguo Wu
- Foshan Institute of Medical Microbiology, Foshan 528315, China
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University, Guangzhou 510632, China
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, China
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12
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You H, Qin S, Zhang F, Hu W, Li X, Liu D, Kong F, Pan X, Zheng K, Tang R. Regulation of Pattern-Recognition Receptor Signaling by HBX During Hepatitis B Virus Infection. Front Immunol 2022; 13:829923. [PMID: 35251017 PMCID: PMC8891514 DOI: 10.3389/fimmu.2022.829923] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/24/2022] [Indexed: 12/16/2022] Open
Abstract
As a small DNA virus, hepatitis B virus (HBV) plays a pivotal role in the development of various liver diseases, including hepatitis, cirrhosis, and liver cancer. Among the molecules encoded by this virus, the HBV X protein (HBX) is a viral transactivator that plays a vital role in HBV replication and virus-associated diseases. Accumulating evidence so far indicates that pattern recognition receptors (PRRs) are at the front-line of the host defense responses to restrict the virus by inducing the expression of interferons and various inflammatory factors. However, depending on HBX, the virus can control PRR signaling by modulating the expression and activity of essential molecules involved in the toll-like receptor (TLR), retinoic acid inducible gene I (RIG-I)-like receptor (RLR), and NOD-like receptor (NLR) signaling pathways, to not only facilitate HBV replication, but also promote the development of viral diseases. In this review, we provide an overview of the mechanisms that are linked to the regulation of PRR signaling mediated by HBX to inhibit innate immunity, regulation of viral propagation, virus-induced inflammation, and hepatocarcinogenesis. Given the importance of PRRs in the control of HBV replication, we propose that a comprehensive understanding of the modulation of cellular factors involved in PRR signaling induced by the viral protein may open new avenues for the treatment of HBV infection.
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Affiliation(s)
- Hongjuan You
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
| | - Suping Qin
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
| | - Fulong Zhang
- Imaging Department, The Second Affiliated Hospital of Shandong First Medical University, Taian, China
| | - Wei Hu
- Nanjing Drum Tower Hospital Group Suqian Hospital, The Affiliate Suqian Hospital of Xuzhou Medical University, Suqian, China
| | - Xiaocui Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
| | - Dongsheng Liu
- Nanjing Drum Tower Hospital Group Suqian Hospital, The Affiliate Suqian Hospital of Xuzhou Medical University, Suqian, China
| | - Fanyun Kong
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China
| | - Xiucheng Pan
- Department of Infectious Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Kuiyang Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China.,National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, China
| | - Renxian Tang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, China.,National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, China
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13
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Hepatitis B Viral Protein HBx and the Molecular Mechanisms Modulating the Hallmarks of Hepatocellular Carcinoma: A Comprehensive Review. Cells 2022; 11:cells11040741. [PMID: 35203390 PMCID: PMC8870387 DOI: 10.3390/cells11040741] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/10/2022] [Accepted: 02/16/2022] [Indexed: 02/06/2023] Open
Abstract
With 296 million cases estimated worldwide, chronic hepatitis B virus (HBV) infection is the most common risk factor for hepatocellular carcinoma (HCC). HBV-encoded oncogene X protein (HBx), a key multifunctional regulatory protein, drives viral replication and interferes with several cellular signalling pathways that drive virus-associated hepatocarcinogenesis. This review article provides a comprehensive overview of the role of HBx in modulating the various hallmarks of HCC by supporting tumour initiation, progression, invasion and metastasis. Understanding HBx-mediated dimensions of complexity in driving liver malignancies could provide the key to unlocking novel and repurposed combinatorial therapies to combat HCC.
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14
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Abstract
Abstract
Viruses completely rely on the energy and metabolic systems of host cells for life activities. Viral infections usually lead to cytopathic effects and host diseases. To date, there are still no specific clinical vaccines or drugs against most viral infections. Therefore, understanding the molecular and cellular mechanisms of viral infections is of great significance to prevent and treat viral diseases. A variety of viral infections are related to the p38 MAPK signalling pathway, and p38 is an important host factor in virus-infected cells. Here, we introduce the different signalling pathways of p38 activation and then summarise how different viruses induce p38 phosphorylation. Finally, we provide a general summary of the effect of p38 activation on virus replication. Our review provides integrated data on p38 activation and viral infections and describes the potential application of targeting p38 as an antiviral strategy.
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15
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Zhong S, Zhang T, Tang L, Li Y. Cytokines and Chemokines in HBV Infection. Front Mol Biosci 2021; 8:805625. [PMID: 34926586 PMCID: PMC8674621 DOI: 10.3389/fmolb.2021.805625] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 11/15/2021] [Indexed: 12/21/2022] Open
Abstract
Chronic hepatitis B virus (HBV) infection remains a leading cause of hepatic inflammation and damage. The pathogenesis of chronic hepatitis B (CHB) infection is predominantly mediated by persistent intrahepatic immunopathology. With the characterization of unique anatomical and immunological structure, the liver is also deemed an immunological organ, which gives rise to massive cytokines and chemokines under pathogenesis conditions, having significant implications for the progression of HBV infection. The intrahepatic innate immune system is responsible for the formidable source of cytokines and chemokines, with the latter also derived from hepatic parenchymal cells. In addition, systemic cytokines and chemokines are disturbed along with the disease course. Since HBV is a stealth virus, persistent exposure to HBV-related antigens confers to immune exhaustion, whereby regulatory cells are recruited by intrahepatic chemokines and cytokines, including interleukin-10 and transforming growth factor β, are involved in such series of causal events. Although the considerable value of two types of available approved treatment, interferons and nucleos(t)ide analogues, effectively suppress HBV replication, neither of them is sufficient for optimal restoration of the immunological attrition state to win the battle of the functional or virological cure of CHB infection. Notably, cytokines and chemokines play a crucial role in regulating the immune response. They exert effects by directly acting on HBV or indirectly manipulating target immune cells. As such, specific cytokines and chemokines, with a potential possibility to serve as novel immunological interventions, combined with those that target the virus itself, seem to be promising prospects in curative CHB infection. Here, we systematically review the recent literature that elucidates cytokine and chemokine-mediated pathogenesis and immune exhaustion of HBV infection and their dynamics triggered by current mainstream anti-HBV therapy. The predictive value of disease progression or control and the immunotherapies target of specific major cytokines and chemokines in CHB infection will also be delineated.
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Affiliation(s)
- Shihong Zhong
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Tianling Zhang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Libo Tang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yongyin Li
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, China
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16
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Lefeuvre C, Le Guillou-Guillemette H, Ducancelle A. A Pleiotropic Role of the Hepatitis B Virus Core Protein in Hepatocarcinogenesis. Int J Mol Sci 2021; 22:ijms222413651. [PMID: 34948447 PMCID: PMC8707456 DOI: 10.3390/ijms222413651] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/18/2021] [Accepted: 12/19/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic hepatitis B virus (HBV) infection is one of the most common factors associated with hepatocellular carcinoma (HCC), which is the sixth most prevalent cancer among all cancers worldwide. However, the pathogenesis of HBV-mediated hepatocarcinogenesis is unclear. Evidence currently available suggests that the HBV core protein (HBc) plays a potential role in the development of HCC, such as the HBV X protein. The core protein, which is the structural component of the viral nucleocapsid, contributes to almost every stage of the HBV life cycle and occupies diverse roles in HBV replication and pathogenesis. Recent studies have shown that HBc was able to disrupt various pathways involved in liver carcinogenesis: the signaling pathways implicated in migration and proliferation of hepatoma cells, apoptosis pathways, and cell metabolic pathways inducing the development of HCC; and the immune system, through the expression and production of proinflammatory cytokines. In addition, HBc can modulate normal functions of hepatocytes through disrupting human host gene expression by binding to promoter regions. This HBV protein also promotes HCC metastasis through epigenetic alterations, such as micro-RNA. This review focuses on the molecular pathogenesis of the HBc protein in HBV-induced HCC.
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Affiliation(s)
- Caroline Lefeuvre
- Laboratoire de Virologie, Département de Biologie des Agents Infectieux, CHU Angers, F-49000 Angers, France; (H.L.G.-G.); (A.D.)
- HIFIH Laboratory UPRES EA3859, SFR ICAT 4208, Angers University, F-49000 Angers, France
- Correspondence:
| | - Hélène Le Guillou-Guillemette
- Laboratoire de Virologie, Département de Biologie des Agents Infectieux, CHU Angers, F-49000 Angers, France; (H.L.G.-G.); (A.D.)
- HIFIH Laboratory UPRES EA3859, SFR ICAT 4208, Angers University, F-49000 Angers, France
| | - Alexandra Ducancelle
- Laboratoire de Virologie, Département de Biologie des Agents Infectieux, CHU Angers, F-49000 Angers, France; (H.L.G.-G.); (A.D.)
- HIFIH Laboratory UPRES EA3859, SFR ICAT 4208, Angers University, F-49000 Angers, France
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17
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Yuan Q, Zhang J, Liu Y, Chen H, Liu H, Wang J, Niu M, Hou L, Wu Z, Chen Z, Zhang J. MyD88 in myofibroblasts regulates aerobic glycolysis-driven hepatocarcinogenesis via ERK-dependent PKM2 nuclear relocalization and activation. J Pathol 2021; 256:414-426. [PMID: 34927243 DOI: 10.1002/path.5856] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 11/11/2021] [Accepted: 12/16/2021] [Indexed: 11/06/2022]
Abstract
Hepatic stellate cells (HSCs) and cancer-associated fibroblasts (CAFs) play critical roles in liver fibrosis and hepatocellular carcinoma (HCC). MyD88 controls the expression of several key modifier genes in liver tumorigenesis; however, whether and how MyD88 in myofibroblasts contributes to the development of fibrosis-associated liver cancer remain elusive. Here, we used an established hepatocarcinogenesis mouse model involving apparent liver fibrogenesis, in which MyD88 was selectively depleted in myofibroblasts. Myofibroblast MyD88-deficient (Fib-MyD88 KO) mice developed significantly fewer and smaller liver tumor nodules. MyD88 deficiency in myofibroblasts attenuated liver fibrosis and aerobic glycolysis in hepatocellular carcinoma tissues. Mechanistically, MyD88 signaling in myofibroblasts increased the secretion of CCL20, which promoted aerobic glycolysis in cancer cells. This process was dependent on the CCR6 receptor and ERK/PKM2 signaling. Furthermore, liver tumor growth was greatly relieved when the mice were treated with a CCR6 inhibitor. Our data revealed a critical role for MyD88 in myofibroblasts in the promotion of hepatocellular carcinoma by affecting aerobic glycolysis in cancer cells and might provide a potential molecular therapeutic target for HCC. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Qi Yuan
- The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China
| | - Jie Zhang
- The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China
| | - Yu Liu
- The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China
| | - Haiqiang Chen
- The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China
| | - Haiyang Liu
- Key Laboratory of RNA Biology, Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing, P. R. China
| | - Jinyan Wang
- Department of Immunology, Basic School of Medicine, China Medical University, Shenyang, P. R. China
| | - Meng Niu
- Department of Interventional Radiology, The First Affiliated Hospital of China Medical University, Shenyang, P. R. China
| | - Lingling Hou
- The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Zhinan Chen
- The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China.,Cell Engineering Research Center and Department of Cell Biology, State Key Laboratory of Cancer, Fourth Military Medical University, Xi'an, P. R. China
| | - Jinhua Zhang
- The College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing, P. R. China
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18
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Guo Y, Wu G, Yi J, Yang Q, Jiang W, Lin S, Yang X, Cai X, Mao L. Anti-Hepatocellular Carcinoma Effect and Molecular Mechanism of the Estrogen Signaling Pathway. Front Oncol 2021; 11:763539. [PMID: 35096574 PMCID: PMC8789654 DOI: 10.3389/fonc.2021.763539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/14/2021] [Indexed: 12/18/2022] Open
Abstract
There are significant gender differences in the incidence and mortality of hepatocellular carcinoma (HCC). Compared with men, the incidence and mortality of HCC in women are relatively low. The estrogen signaling pathway, composed of estrogen and estrogen receptors, has been postulated to have a protective effect on the occurrence and development of HCC. There have been multiple studies that have supported anti-HCC effects of the estrogen signaling pathways, including direct and indirect pathways such as genomic pathways, rapid transduction pathways, non-coding RNA, tumor microenvironment, estrogen metabolites, and inhibition of hepatitis infection and replication. Based on the evidence of an anti-HCC effect of the estrogen signaling pathway, a number of strategies have been investigated to determine the potential therapeutic effect. These have included estrogen replacement therapy, targeting the estrogen receptor, key molecules, inflammatory mediators, and regulatory pathways of the estrogen signaling pathway. In this review, we have systematically summarized the latest developments in the complex functions and molecular mechanisms of the estrogen signaling pathway in liver cancer. Furthermore, we have highlighted the potential targets of treatment strategies based on the estrogen signaling pathway in the treatment of liver cancer and the principal obstacles currently encountered for future investigation.
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Affiliation(s)
- Yusheng Guo
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Guohui Wu
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Junrong Yi
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Qin Yang
- Nephrology Department, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Wengong Jiang
- Nephrology Department, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Shaoqiang Lin
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaorong Yang
- Clinical Laboratory, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- *Correspondence: Liufeng Mao, ; Xiangsheng Cai, ; Xiaorong Yang,
| | - Xiangsheng Cai
- Center for Medical Experiments, University of Chinese Academy of Science-Shenzhen Hospital, Shenzhen, China
- *Correspondence: Liufeng Mao, ; Xiangsheng Cai, ; Xiaorong Yang,
| | - Liufeng Mao
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- *Correspondence: Liufeng Mao, ; Xiangsheng Cai, ; Xiaorong Yang,
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19
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Ling LR, Zheng DH, Zhang ZY, Xie WH, Huang YH, Chen ZX, Wang XZ, Li D. Effect of HBx on inflammation and mitochondrial oxidative stress in mouse hepatocytes. Oncol Lett 2020; 19:2861-2869. [PMID: 32218840 PMCID: PMC7068664 DOI: 10.3892/ol.2020.11404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 12/12/2019] [Indexed: 02/07/2023] Open
Abstract
Hepatitis B virus × protein (HBx) serves an important role in the pathogenesis of the hepatitis B virus infection. Previous studies have reported that the interaction between HBx and hepatocyte mitochondria is an important factor leading to liver cell injury and apoptosis, ultimately inducing the formation of liver cancer. In the present study, a mouse model expressing HBx was constructed using hydrodynamic in vivo transfection based on the interaction between HBx and cytochrome c oxidase (COX) subunit III. The specific mechanism of HBx-induced oxidative stress in mouse hepatocytes and the subsequent effect on mitochondrial function and inflammatory injury was assessed. The results demonstrated that HBx reduced the activity of COX and the expression of superoxide dismutase and upregulated the expression of malondialdehyde, NF-κB and phospho-AKT, thus increasing oxidative stress. In addition, HBx induced an increase in interleukin (IL)-6, IL-1β and IL-18 expression levels, which created an inflammatory microenvironment in the liver, further promoting hepatocyte inflammatory injury. Therefore, it was proposed that HBx may affect hepatocyte mitochondrial respiration by reducing the activity of cytochrome c oxidase, leading to mitochondrial dysfunction and inducing hepatocyte inflammation and injury.
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Affiliation(s)
- Li-Rong Ling
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Dan-Hua Zheng
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Zhi-Yang Zhang
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Wen-Hui Xie
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Yue-Hong Huang
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Zhi-Xin Chen
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Xiao-Zhong Wang
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Dan Li
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
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20
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Kong F, Zhou K, Zhu T, Lian Q, Tao Y, Li N, Tu T, Bi Y, Yang X, Pan X, Li S, You H, Zheng K, Tang R. Interleukin-34 mediated by hepatitis B virus X protein via CCAAT/enhancer-binding protein α contributes to the proliferation and migration of hepatoma cells. Cell Prolif 2019; 52:e12703. [PMID: 31621133 PMCID: PMC6869657 DOI: 10.1111/cpr.12703] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 09/10/2019] [Accepted: 09/27/2019] [Indexed: 12/14/2022] Open
Abstract
Objectives Interleukin‐34 (IL‐34) is associated with hepatitis B virus (HBV) infection and hepatocellular carcinoma (HCC). However, the role and associated mechanisms of IL‐34 in HBV‐related HCC remain unclear. In this study, the expression, biological function and associated mechanisms of IL‐34 in HBV‐related HCC cells were investigated. Methods IL‐34 expression induced by HBV and HBV X (HBX) gene was measured in hepatoma cells. The role of CCAAT/enhancer‐binding protein α (CEBP/α) in HBX‐induced IL‐34 expression was examined. The signal pathways involved in the expression of CEBP/α and IL‐34 induced by HBX were assessed. The role of IL‐34 in the proliferation and migration of HCC cells, and related mechanisms were explored. Results Dependent on HBX, HBV increased IL‐34 expression in hepatoma cells, and HBX upregulated and interacted with CEBP/α to enhance the activity of IL‐34 promoters. CEBP/α mediated by HBX was associated with the activation of PI3‐K and NF‐κB pathways to promote IL‐34 expression. Via CSF1‐R and CD138, IL‐34 promoted the proliferation and migration of hepatoma cells, and contributed to the activation of ERK and STAT3 pathways and the upregulation of Bcl‐xl and c‐Myc mediated by HBX. Conclusion We demonstrate that IL‐34 contributes to HBX‐mediated functional abnormality of HCC cells and provides a novel insight into the molecular mechanism of carcinogenesis mediated by HBX.
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Affiliation(s)
- Fanyun Kong
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China.,National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, China
| | - Kai Zhou
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China.,Clinical Laboratory, Enze Hospital, Taizhou Enze Medical Center, Luqiao, China
| | - Ting Zhu
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Qi Lian
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Yukai Tao
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Nan Li
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Tao Tu
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Yanwei Bi
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Xiaoying Yang
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Xiucheng Pan
- Department of Infectious Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shibao Li
- Department of Laboratory Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Hongjuan You
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
| | - Kuiyang Zheng
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China.,National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, China
| | - Renxian Tang
- Department of Pathogenic Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China.,National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, China
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21
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Pan Y, Ke Z, Ye H, Sun L, Ding X, Shen Y, Zhang R, Yuan J. Saikosaponin C exerts anti-HBV effects by attenuating HNF1α and HNF4α expression to suppress HBV pgRNA synthesis. Inflamm Res 2019; 68:1025-1034. [PMID: 31531682 PMCID: PMC7079752 DOI: 10.1007/s00011-019-01284-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/03/2019] [Accepted: 09/07/2019] [Indexed: 02/06/2023] Open
Abstract
Objective Saikosaponin c (SSc), a compound purified from the traditional Chinese herb of Radix Bupleuri was previously identified to exhibit anti-HBV replication activity. However, the mechanism through which SSc acts against HBV remains unknown. In this study, we investigated the mechanism of SSc mediated anti-HBV activity. Methods HepG2.2.15 cells were cultured at 37 ℃ in the presence of 1–40 μg/mL of SSc or DMSO as a control. The expression profile of HBV markers, cytokines, HNF1α and HNF4α were investigated by real-time quantitative PCR, Elisa, Western blot and Dot blotting. Knockdown of HNF1α or HNF4α in HepG2.2.15 cells was mediated by two small siRNAs specifically targeting HNF1α or HNF4α. Results We found that SSc stimulates IL-6 expression, leading to attenuated HNF1α and HNF4α expression, which further mediates suppression of HBV pgRNA synthesis. Knockdown of HNF1α or HNF4α in HepG2.2.15 cells by RNA interference abrogates SSc’s anti-HBV role. Moreover, SSc is effective to both wild-type and drug-resistant HBV mutants. Conclusion SSc inhibits pgRNA synthesis by targeting HNF1α and HNF4α. These results indicate that SSc acts as a promising compound for modulating pgRNA transcription in the therapeutic strategies against HBV infection. Electronic supplementary material The online version of this article (10.1007/s00011-019-01284-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yanchao Pan
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China.
| | - Zhiyi Ke
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Hong Ye
- Anhui Academy of Medical Sciences, Hefei, 230061, China
| | - Lina Sun
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Xiaoyan Ding
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Yun Shen
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Runze Zhang
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Jing Yuan
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China.
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22
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Hu J, Cheng J, Tang L, Hu Z, Luo Y, Li Y, Zhou T, Chang J, Guo JT. Virological Basis for the Cure of Chronic Hepatitis B. ACS Infect Dis 2019; 5:659-674. [PMID: 29893548 DOI: 10.1021/acsinfecdis.8b00081] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hepatitis B virus (HBV) has infected one-third of world population, and 240 million people are chronic carriers, to whom a curative therapy is still not available. Similar to other viruses, persistent HBV infection relies on the virus to exploit host cell functions to support its replication and efficiently evade host innate and adaptive antiviral immunity. Understanding HBV replication and concomitant host cell interactions is thus instrumental for development of therapeutics to disrupt the virus-host interactions critical for its persistence and cure chronic hepatitis B. Although the currently available cell culture systems of HBV infection are refractory to genome-wide high throughput screening of key host cellular factors essential for and/or regulating HBV replication, classic one-gene (or pathway)-at-a-time studies in the last several decades have already revealed many aspects of HBV-host interactions. An overview of the landscape of HBV-hepatocyte interaction indicates that, in addition to more tightly suppressing viral replication by directly targeting viral proteins, disruption of key viral-host cell interactions to eliminate or inactivate the covalently closed circular (ccc) DNA, the most stable HBV replication intermediate that exists as an episomal minichromosome in the nucleus of infected hepatocyte, is essential to achieve a functional cure of chronic hepatitis B. Moreover, therapeutic targeting of integrated HBV DNA and their transcripts may also be required to induce hepatitis B virus surface antigen (HBsAg) seroclearance and prevent liver carcinogenesis.
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Affiliation(s)
- Jin Hu
- Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science, 1 Tian-tan Xi-li, Beijing, 100050, China
| | - Junjun Cheng
- Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Liudi Tang
- Microbiology and Immunology Graduate Program, Drexel University College of Medicine, 2900 West Queen Lane, Philadelphia, Pennsylvania 19129, United States
| | - Zhanying Hu
- Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Yue Luo
- Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
- Institute of Hepatology, Second Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan 410008, China
| | - Yuhuan Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science, 1 Tian-tan Xi-li, Beijing, 100050, China
| | - Tianlun Zhou
- Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Jinhong Chang
- Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Ju-Tao Guo
- Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
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23
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Yang K, Guan S, Zhang H, Chen Z. Induction of interleukin 6 impairs the anti-HBV efficiency of IFN-α in human hepatocytes through upregulation of SOCS3. J Med Virol 2019; 91:803-812. [PMID: 30570770 DOI: 10.1002/jmv.25382] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 12/14/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Kai Yang
- Department of Pharmacology; Anhui Medical University; Hefei China
- Department of Clinical Laboratory; The Second Hospital of Anhui Medical University; Hefei China
| | - Shihe Guan
- Department of Clinical Laboratory; The Second Hospital of Anhui Medical University; Hefei China
| | - Hao Zhang
- Department of Clinical Laboratory; The Second Hospital of Anhui Medical University; Hefei China
| | - Zhiwu Chen
- Department of Pharmacology; Anhui Medical University; Hefei China
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24
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25
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Long-term survival after partial hepatectomy for sub-stage patients with intermediate stage hepatocellular carcinoma. Int J Surg 2018; 56:256-263. [DOI: 10.1016/j.ijsu.2018.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 04/12/2018] [Accepted: 06/14/2018] [Indexed: 02/06/2023]
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26
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Song J, Zhang X, Ge Q, Yuan C, Chu L, Liang HF, Liao Z, Liu Q, Zhang Z, Zhang B. CRISPR/Cas9-mediated knockout of HBsAg inhibits proliferation and tumorigenicity of HBV-positive hepatocellular carcinoma cells. J Cell Biochem 2018; 119:8419-8431. [PMID: 29904948 PMCID: PMC6221038 DOI: 10.1002/jcb.27050] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 04/23/2018] [Indexed: 12/20/2022]
Abstract
Chronic hepatitis B virus (HBV) infection remains the most common risk factor for hepatocellular carcinoma (HCC). High HBV surface antigen (HBsAg) levels are highly correlated with hepatocarcinogenesis and HBV‐associated HCC development. However, the role and detailed mechanisms associated with HBsAg in HCC development remain elusive. In this study, we designed specific single guide RNAs (sgRNAs) targeting the open reading frames, preS1/preS2/S, of the HBV genome and established HBsAg knockout HCC cell lines using the CRISPR/Cas9 system. We showed that knockout of HBsAg in HCC cell lines decreased HBsAg expression and significantly attenuated HCC proliferation in vitro, as well as tumorigenicity in vivo. We also found that overexpression of HBsAg, including the large (LHBs), middle (MHBs), and small (SHBs) surface proteins promoted proliferation and tumor formation in HCC cells. Moreover, we demonstrated that knockout of HBsAg in HCC cells decreased interleukin (IL)‐6 production and inhibited signal transducer and activator of transcription 3 (STAT3) signaling, while overexpression of HBsAg induced a substantial accumulation of pY‐STAT3. Collectively, these results highlighted the tumorigenic role of HBsAg and implied that the IL‐6‐STAT3 pathway may be implicated in the HBsAg‐mediated malignant potential of HBV‐associated HCC.
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Affiliation(s)
- Jia Song
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Xiaochao Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Qianyun Ge
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Chaoyi Yuan
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Liang Chu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Hui-Fang Liang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Zhibin Liao
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Qiumeng Liu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Zhanguo Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
| | - Bixiang Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province for the Clinical Medicine Research Center of Hepatic Surgery, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, China
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27
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Rajagopalan D, Jha S. An epi(c)genetic war: Pathogens, cancer and human genome. Biochim Biophys Acta Rev Cancer 2018; 1869:333-345. [DOI: 10.1016/j.bbcan.2018.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/22/2018] [Accepted: 04/09/2018] [Indexed: 02/08/2023]
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28
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Li C, Wang K, Guo L, Sun H, Huang H, Lin X, Li Q. Inhibition of miR-34a-5p alleviates hypoxia-reoxygenation injury by enhancing autophagy in steatotic hepatocytes. Biol Open 2018; 7:7/3/bio033290. [PMID: 29581146 PMCID: PMC5898271 DOI: 10.1242/bio.033290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Hypoxia-reoxygenation (H/R) injury in steatotic hepatocytes has been implicated in liver dysfunction after liver transplantation. MicroRNAs (miRs) play important roles in regulating several cell biology mechanisms related to H/R injury. However, the role of miRs in regulating H/R injury in steatotic hepatocytes is still unclear. We established an in vitro model for studying H/R injury in steatotic hepatocytes and identified miR-34a-5p as a miR that was substantially upregulated in steatotic hepatocytes under H/R challenge. MiR-34a-5p expression was modified by transfecting miR-34a-5p mimic and inhibitor into H/R-challenged steatotic hepatocytes. We found that inhibition of miR-34a-5p alleviated H/R-induced apoptosis and promoted post-H/R proliferation in steatotic hepatocytes. Whereas, overexpression of miR-34a-5p augmented H/R-induced apoptosis and prohibited post-H/R proliferation. By examining autophagy, our data demonstrated that miR-34a-5p suppressed autophagy in H/R-challenged steatotic hepatocytes, induction of autophagy partially rescued the exaggeration of H/R injury induced by miR-34a-5p mimic, while inhibition of autophagy impaired the protection of the miR-34a-5p inhibitor against H/R injury. In conclusion, miR-34a-5p is crucial in exaggerating H/R injury, likely by suppressing autophagy in steatotic hepatocytes. Inhibition of miR-34a may be a promising strategy to protect steatotic hepatocytes against H/R-injury.
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Affiliation(s)
- Chuanjiang Li
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China .,Department of Surgery, Linzhi Municipal People's Hospital, Linzhi, Tibet 860100, China
| | - Kai Wang
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Linghong Guo
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Hang Sun
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Hai Huang
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA
| | - XinXin Lin
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Qingping Li
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
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29
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Oxidative stress, a trigger of hepatitis C and B virus-induced liver carcinogenesis. Oncotarget 2018; 8:3895-3932. [PMID: 27965466 PMCID: PMC5354803 DOI: 10.18632/oncotarget.13904] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 12/05/2016] [Indexed: 12/11/2022] Open
Abstract
Virally induced liver cancer usually evolves over long periods of time in the context of a strongly oxidative microenvironment, characterized by chronic liver inflammation and regeneration processes. They ultimately lead to oncogenic mutations in many cellular signaling cascades that drive cell growth and proliferation. Oxidative stress, induced by hepatitis viruses, therefore is one of the factors that drives the neoplastic transformation process in the liver. This review summarizes current knowledge on oxidative stress and oxidative stress responses induced by human hepatitis B and C viruses. It focuses on the molecular mechanisms by which these viruses activate cellular enzymes/systems that generate or scavenge reactive oxygen species (ROS) and control cellular redox homeostasis. The impact of an altered cellular redox homeostasis on the initiation and establishment of chronic viral infection, as well as on the course and outcome of liver fibrosis and hepatocarcinogenesis will be discussed The review neither discusses reactive nitrogen species, although their metabolism is interferes with that of ROS, nor antioxidants as potential therapeutic remedies against viral infections, both subjects meriting an independent review.
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30
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Naseem S, Hussain T, Manzoor S. Interleukin-6: A promising cytokine to support liver regeneration and adaptive immunity in liver pathologies. Cytokine Growth Factor Rev 2018; 39:36-45. [PMID: 29361380 DOI: 10.1016/j.cytogfr.2018.01.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/09/2018] [Accepted: 01/11/2018] [Indexed: 02/07/2023]
Abstract
Liver pathologies (fibrosis, cirrhosis, alcoholic, non-alcoholic diseases and hepatocellular carcinoma) represent one of the most common causes of death worldwide. A number of genetic and environmental factors contribute to the development of liver diseases. Interleukin-6 (IL-6) is a pleiotropic cytokine, exerting variety of effects on inflammation, liver regeneration, and defence against infections by regulating adaptive immunity. Due to its high abundance in inflammatory settings, IL-6 is often viewed as a detrimental cytokine. However, accumulating evidence supports the view that IL-6 has a beneficial impact in numerous liver pathologies, due to its roles in liver regeneration and in promoting an anti-inflammatory response in certain conditions. IL-6 promotes proliferation, angiogenesis and metabolism, and downregulates apoptosis and oxidative stress; together these functions are critical for mediating hepatoprotection. IL-6 is also an important regulator of adaptive immunity where it induces T cell differentiation and regulates autoimmunity. It can augment antiviral adaptive immune responses and mitigate exhaustion of T cells during chronic infection. This review focuses on studies that present IL-6 as a key factor in regulating liver regeneration and in supporting effector immune functions and suggests that these functions of IL-6 can be exploited in treatment strategies for liver pathologies.
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Affiliation(s)
- Sidrah Naseem
- Atta-ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
| | - Tabinda Hussain
- Atta-ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
| | - Sobia Manzoor
- Atta-ur-Rahman School of Applied Bio-Sciences, Department of Healthcare Biotechnology, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
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31
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Paquissi FC. Immunity and Fibrogenesis: The Role of Th17/IL-17 Axis in HBV and HCV-induced Chronic Hepatitis and Progression to Cirrhosis. Front Immunol 2017; 8:1195. [PMID: 29033929 PMCID: PMC5626935 DOI: 10.3389/fimmu.2017.01195] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/11/2017] [Indexed: 12/13/2022] Open
Abstract
Cirrhosis is a common final pathway for most chronic liver diseases; representing an increasing burden worldwide and is associated with increased morbidity and mortality. Current evidence has shown that, after an initial injury, the immune response has a significant participation in the ongoing damage, and progression from chronic viral hepatitis (CVH) to cirrhosis, driving the activation and maintenance of main fibrogenic pathways. Among immune deregulations, those related to the subtype 17 of T helper lymphocytes (Th17)/interleukin-17 (IL-17) axis have been recognized as key immunopathological and prognostic elements in patients with CVH. The Th17/IL-17 axis has been found involved in several points of fibrogenesis chain from the activation of stellate cells, increased expression of profibrotic factors as TGF-β, promotion of the myofibroblastic or epithelial–mesenchymal transition, stimulation of the synthesis of collagen, and induction of imbalance between matrix metalloproteinases and tissue inhibitors of metalloproteinases (TIMPs). It also promotes the recruitment of inflammatory cells and increases the expression of proinflammatory cytokines such as IL-6 and IL-23. So, the Th17/IL-17 axis is simultaneously the fuel and the flame of a sustained proinflammatory and profibrotic environment. This work aims to present the immunopathologic and prognostic role of the Th17/IL-17 axis and related pathways in fibrogenesis and progression to cirrhosis in patients with liver disease due to hepatitis B virus (HBV) and hepatitis C virus (HCV).
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32
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Kinowaki K, Soejima Y, Kumagai A, Kondo F, Sano K, Fujii T, Kitagawa M, Fukusato T. Clinical and pathological significance of myeloid differentiation factor 88 expression in human hepatocellular carcinoma tissues. Pathol Int 2017; 67:256-263. [PMID: 28370778 DOI: 10.1111/pin.12529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/09/2017] [Indexed: 12/23/2022]
Abstract
The innate immune system, which includes toll-like receptor (TLR) signaling, plays an important role in inflammation and oncogenesis. Although TLR common adaptor myeloid differentiation factor 88 (MyD88) is known to have multiple effects on carcinogenesis, the role of MyD88 in hepatocarcinogenesis remains unknown. In this study, MyD88 expression was examined in 105 samples of human hepatocellular carcinoma (HCC) tissue by immunohistochemistry, Western blot, and quantitative reverse-transcriptase polymerase chain reaction methods. The relationships between MyD88 expression and clinical and pathological parameters were analyzed. The results showed that attenuated expression of MyD88 in HCC tissue tumor cells was significantly related to hepatitis B virus infection, large tumor size, positive vascular invasion, and intrahepatic metastasis (P < 0.05). Western blot analysis of MyD88 protein in nine normal livers and 28 HCCs showed gender disparity (P < 0.01, P < 0.05), and attenuated expression in cirrhotic livers (P < 0.05). Low expression of MyD88 mRNA was evident in HCCs with vascular invasion (P < 0.01). In contrast to previous reports, these results suggest that attenuated expression of MyD88 in HCC is associated with tumor progression.
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Affiliation(s)
- Keiichi Kinowaki
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan.,Department of Comprehensive Pathology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Pathology, Toranomon Hospital, Tokyo, Japan
| | - Yurie Soejima
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan.,Department of Molecular Pathology, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Arisa Kumagai
- Department of Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - Fukuo Kondo
- Department of Pathology, Toranomon Hospital, Tokyo, Japan.,Department of Pathology, Teikyo University Hospital, Tokyo, Japan
| | - Keiji Sano
- Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan
| | - Takeshi Fujii
- Department of Pathology, Toranomon Hospital, Tokyo, Japan
| | - Masanobu Kitagawa
- Department of Comprehensive Pathology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshio Fukusato
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan.,Department of Pathology, Toranomon Hospital, Tokyo, Japan.,Department of Pathology, Teikyo University School of Medicine, Tokyo, Japan
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33
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Chen S, Dong Z, Yang P, Wang X, Jin G, Yu H, Chen L, Li L, Tang L, Bai S, Yan H, Shen F, Cong W, Wen W, Wang H. Hepatitis B virus X protein stimulates high mobility group box 1 secretion and enhances hepatocellular carcinoma metastasis. Cancer Lett 2017; 394:22-32. [PMID: 28216372 DOI: 10.1016/j.canlet.2017.02.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 01/17/2017] [Accepted: 02/10/2017] [Indexed: 12/20/2022]
Abstract
Hepatitis B virus X protein (HBx) plays an important role in the progression of hepatocellular carcinoma. Here we reported that overexpression of HBx in hepatocellular carcinoma (HCC) cells could induce the secretion of high-mobility group box 1 (HMGB1) to promote invasion and metastasis of HCC in an autocrine/paracrine manner. HBx triggered an increase of cytoplasmic calcium and activated CAMKK/CAMKIV pathway, leading to subsequent translocation and release of HMGB1. HMGB1 neutralizing antibody, as well as calcium chelator or inhibitors of CAMKK/CAMKIV, could remarkably reduce invasion and metastasis of HCC cells in vitro and in a murine HCC metastasis model in vivo. Furthermore, the level of HMGB1 in patient serum and tumor tissues was positively correlated with HBV DNA load. We demonstrate an inverse relationship between HMGB1 in tumor cytoplasm and overall prognosis of HCC patients. CONCLUSION HBx promotes the progression of HCC through translocation and secretion of HMGB1 from tumor cells via calcium dependent cascades. These data indicates that HMGB1 could serve as a novel prognostic biomarker and potential therapeutic target for HBV-related HCC.
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Affiliation(s)
- Shuzhen Chen
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Zihui Dong
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Pinghua Yang
- Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Xianming Wang
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China
| | - Guangzhi Jin
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Han Yu
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Lei Chen
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Liang Li
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Liang Tang
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Shilei Bai
- Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Hexin Yan
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Feng Shen
- Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Wenming Cong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Wen Wen
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China.
| | - Hongyang Wang
- National Center for Liver Cancer, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China; International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China; State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China; Ministry of Education (MOE) Key Laboratory on Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, Shanghai, China.
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Zhang M, Gu J, Zhang C. Hepatitis B virus X protein binding to hepsin promotes C3 production by inducing IL-6 secretion from hepatocytes. Oncotarget 2016; 7:7780-800. [PMID: 26760961 PMCID: PMC4884954 DOI: 10.18632/oncotarget.6846] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 01/01/2016] [Indexed: 12/19/2022] Open
Abstract
Hepatitis B virus (HBV) X protein (HBx) is an important effector for HBV-associated pathogenesis. In this study, we identified hepsin as an HBx-interacting protein and investigated the effects of hepsin on HBx-mediated complement component 3 (C3) secretion in hepatocytes. In vivo and in vitro binding between HBx and hepsin was confirmed by co-immunoprecipitation and Glutathione S-transferase pull-down assays. HBx synergized with hepsin to promote C3 production by potentiating interleukin-6 (IL-6) secretion. Knockdown of endogenous hepsin attenuated C3 and IL-6 secretion induced by HBx in hepatic cells. In addition, levels of hepsin protein correlated positively with C3 expression in human non-tumor liver tissues. Further exploration revealed that HBx and hepsin increased C3 promoter activity by up-regulating the expression and phosphorylation of the transcription factor CAAT/enhancer binding protein beta (C/EBP-β), which binds to the IL-6/IL-1 response element in the C3 promoter. HBx and hepsin synergistically enhanced IL-6 mRNA levels and promoter activity by increasing the nuclear translocation of nuclear factor kappaB (NF-κB). Our findings show for the first time that binding between HBx and hepsin promotes C3 production by inducing IL-6 secretion in hepatocytes.
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Affiliation(s)
- Mingming Zhang
- Department of Biochemistry and Molecular Biology, Gene Research Center, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Jianxin Gu
- Department of Biochemistry and Molecular Biology, Gene Research Center, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Chunyi Zhang
- Department of Biochemistry and Molecular Biology, Gene Research Center, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
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35
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Hepatic SATB1 induces paracrine activation of hepatic stellate cells and is upregulated by HBx. Sci Rep 2016; 6:37717. [PMID: 27883059 PMCID: PMC5121621 DOI: 10.1038/srep37717] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 10/28/2016] [Indexed: 12/23/2022] Open
Abstract
Chronic hepatitis B virus (HBV) infection is a major cause of chronic liver diseases, but its involvement in hepatic fibrogenesis remains unclear. Special AT-rich binding protein 1 (SATB1) has been implicated in reprogramming chromatin organization and transcription profiles in many cancers and non-cancer-related conditions. We found that hepatic SATB1 expression was significantly up-regulated in fibrotic tissues from chronic hepatitis B virus (HBV)-infected patients and HBV transgenic (HBV-Tg) mouse model. Knockdown of SATB1 in the liver significantly alleviated CCl4-induced fibrosis in HBV-Tg mouse model. Moreover, we suggested HBV encoded x protein (HBx) induced SATB1 expression through activation of JNK and ERK pathways. Enforced expression of SATB1 in hepatocytes promoted the activation and proliferation of hepatic stellate cells (HSCs) by secretion of connective tissue growth factor (CTGF), Interleukin-6 (IL-6) and platelet derived growth factor-A (PDGF-AA). Our findings demonstrated that HBx upregulated hepatic SATB1 which exerted pro-fibrotic effects by paracrine activation of stellate cells in HBV-related fibrosis.
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36
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Fu S, Zhou RR, Li N, Huang Y, Fan XG. Hepatitis B virus X protein in liver tumor microenvironment. Tumour Biol 2016; 37:10.1007/s13277-016-5406-2. [PMID: 27658781 PMCID: PMC5250643 DOI: 10.1007/s13277-016-5406-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 09/13/2016] [Indexed: 12/18/2022] Open
Abstract
Encoded by the hepatitis B virus, hepatitis B virus X protein (HBx) is a multifunctional, potentially oncogenic protein that acts primarily during the progression from chronic hepatitis B to cirrhosis and hepatocellular carcinoma (HCC). In recent decades, it has been established that chronic inflammation generates a tumor-supporting microenvironment. HCC is a typical chronic inflammation-related cancer, and inflammation is the main risk factor for HCC progression. The viral transactivator HBx plays a pivotal role in the initiation and maintenance of hepatic inflammatory processes through interactions with components of the tumor microenvironment including tumor cells and the surrounding peritumoral stroma. The complex interactions between HBx and this microenvironment are thought to regulate tumor growth, progression, invasion, metastasis, and angiogenesis. In this review, we have summarized the current evidence evaluating the function of HBx and its contribution to the inflammatory liver tumor microenvironment.
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Affiliation(s)
- Sha Fu
- Department of Infectious Diseases, Key Laboratory of Viral Hepatitis of Hunan Province, Xiangya Hospital, Central South University, P. O. Box: 410008, Changsha, China
| | - Rong-Rong Zhou
- Department of Infectious Diseases, Key Laboratory of Viral Hepatitis of Hunan Province, Xiangya Hospital, Central South University, P. O. Box: 410008, Changsha, China.
| | - Ning Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, Changsha, China
| | - Yan Huang
- Department of Infectious Diseases, Key Laboratory of Viral Hepatitis of Hunan Province, Xiangya Hospital, Central South University, P. O. Box: 410008, Changsha, China
| | - Xue-Gong Fan
- Department of Infectious Diseases, Key Laboratory of Viral Hepatitis of Hunan Province, Xiangya Hospital, Central South University, P. O. Box: 410008, Changsha, China.
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37
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Kim DH, Kang HS, Kim KH. Roles of hepatocyte nuclear factors in hepatitis B virus infection. World J Gastroenterol 2016; 22:7017-7029. [PMID: 27610013 PMCID: PMC4988315 DOI: 10.3748/wjg.v22.i31.7017] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/02/2016] [Accepted: 06/29/2016] [Indexed: 02/07/2023] Open
Abstract
Approximately 350 million people are estimated to be persistently infected with hepatitis B virus (HBV) worldwide. HBV maintains persistent infection by employing covalently closed circular DNA (cccDNA), a template for all HBV RNAs. Chronic hepatitis B (CHB) patients are currently treated with nucleos(t)ide analogs such as lamivudine, adefovir, entecavir, and tenofovir. However, these treatments rarely cure CHB because they are unable to inhibit cccDNA transcription and inhibit only a late stage in the HBV life cycle (the reverse transcription step in the nucleocapsid). Therefore, an understanding of the factors regulating cccDNA transcription is required to stop this process. Among numerous factors, hepatocyte nuclear factors (HNFs) play the most important roles in cccDNA transcription, especially in the generation of viral genomic RNA, a template for HBV replication. Therefore, proper control of HNF function could lead to the inhibition of HBV replication. In this review, we summarize and discuss the current understanding of the roles of HNFs in the HBV life cycle and the upstream factors that regulate HNFs. This knowledge will enable the identification of new therapeutic targets to cure CHB.
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38
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Hepatitis B Virus Middle Protein Enhances IL-6 Production via p38 MAPK/NF-κB Pathways in an ER Stress-Dependent Manner. PLoS One 2016; 11:e0159089. [PMID: 27434097 PMCID: PMC4951109 DOI: 10.1371/journal.pone.0159089] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 06/27/2016] [Indexed: 02/07/2023] Open
Abstract
During hepatitis B virus (HBV) infection, three viral envelope proteins of HBV are overexpressed in the endoplasmic reticulum (ER). The large S protein (LHBs) and truncated middle S protein (MHBst) have been documented to play roles in regulating host gene expression and contribute to hepatic disease development. As a predominant protein at the ultrastructural level in biopsy samples taken from viremic patients, the role of the middle S protein (MHBs) remains to be understood despite its high immunogenicity. When we transfected hepatocytes with an enhanced green fluorescent protein (EGFP)-tagged MHBs expressing plasmid, the results showed that expression of MHBs cause an upregulation of IL-6 at the message RNA and protein levels through activating the p38 mitogen-activated protein kinase (p38 MAPK) and nuclear factor-kappa B (NF-κB) pathways. The use of specific inhibitors of the signaling pathways can diminish this upregulation. The use of BAPTA-AM attenuated the stimulation caused by MHBs. We further found that MHBs accumulated in the endoplasmic reticulum and increased the amount of glucose regulated protein 78 (GRP78/BiP). Our results provide a possibility that MHBs could be involved in liver disease progression.
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39
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Wang Z, Wu S, Liao J, Zhong L, Xing T, Fan J, Peng Z. Interleukin-6 and rs1800796 locus single nucleotide polymorphisms in response to hypoxia/reoxygenation in hepatocytes. Int J Mol Med 2016; 38:192-200. [PMID: 27221654 PMCID: PMC4899033 DOI: 10.3892/ijmm.2016.2595] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 05/10/2016] [Indexed: 02/07/2023] Open
Abstract
Ischemia-reperfusion injury due to hypoxia/reoxygenation (H/R) is one of the main causes of liver damage during liver surgery. Donor interleukin-6 (IL-6) rs1800796 single nucleotide polymorphisms (SNPs) affect the metabolism of tacrolimus following liver transplantation-related hepatic H/R. This study investigated the response of IL-6 and its promoter polymorphisms to hepatic H/R in liver parenchymal cells. The association between IL-6 rs1800796 SNPs and IL‑6 expression was measured in 84 disease-free liver tissues using tissue microarrays and immunohistochemistry. Subsequently, LO2G, LO2C and NC-LO2 cells were successfully constructed via stable lentivirus-mediated transfection. The effects of IL-6 and its SNPs on the biological function of LO2 cells were examined using a cell model of H/R. Our results revealed that IL-6 was mainly expressed in hepatocytes. The intermediate IL-6 expression rate in genotype CC carriers was higher than that in genotype CG/GG carriers (P=0.006), which was subsequently verified at the IL-6 mRNA level (P=0.002). The concentrations of alanine aminotransferase in the LO2G cells were significantly higher than those in the LO2C cells following H/R for 6 h and H/R for 24 h (P<0.05). The viability of the LO2C cells was higher than that of the LO2G cells (P<0.05). Furthermore, the expression of IL-6 and its downstream molecules was significantly increased in the LO2C cells compared with the LO2G cells (P<0.05). Therefore, the sequence variants of rs1800796 SNPs (G→C) exhibit an increased IL-6 transcription efficiency in liver parenchymal cells. In addition, the increased expression of IL-6 protects the hepatocytes following hepatic H/R injury.
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Affiliation(s)
- Zhaowen Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Shaohan Wu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Jianhua Liao
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Lin Zhong
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Tonghai Xing
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Junwei Fan
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Zhihai Peng
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
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40
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Zhu M, Guo J, Li W, Lu Y, Fu S, Xie X, Xia H, Dong X, Chen Y, Quan M, Zheng S, Xie K, Li M. Hepatitis B virus X protein induces expression of alpha-fetoprotein and activates PI3K/mTOR signaling pathway in liver cells. Oncotarget 2016; 6:12196-208. [PMID: 25682869 PMCID: PMC4494932 DOI: 10.18632/oncotarget.2906] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/11/2014] [Indexed: 12/28/2022] Open
Abstract
The hepatitis B virus (HBV)-X protein (HBx) induces malignant transformation of liver cells, and elevated expression of alpha-fetoprotein (AFP) is a significant biomarker of hepatocarcinogenesis. However, the role of AFP in HBV-related hepatocarcinogenesis is unclear. In this study, we investigated the regulatory impact of AFP expression on HBx-mediated malignant transformation of human hepatocytes. We found that HBV induced the expression of AFP before that of oncogenes, e.g., Src, Ras and chemokine (C-X-C motif) receptor 4 (CXCR4), and AFP activated protein kinase B (AKT) and mammalian target of rapamycin (mTOR) in HBV-related HCC tissues and in human liver cells transfected with HBx. Cytoplasmic AFP interacted with and inhibited phosphatase and tensin homolog deleted on chromosome 10 (PTEN), activating the phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway and promoting mTOR-mediated stimulation of the transcription factor hypoxia inducible factor-1α (HIF-1α), and therefore led to the activation of the promoters of Src, CXCR4, and Ras genes. On the contrary, reduced expression of AFP by siRNA resulted in the repression of p-mTOR, pAKT, Src, CXCR4, and Ras in human malignant liver cells. Taken together, for the first time our study indicates that HBx-induced AFP expression critically promote malignant transformation in liver cells through the activation of PI3K/mTOR signaling.
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Affiliation(s)
- Mingyue Zhu
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Key Laboratory of Molecular Biology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Junli Guo
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Wei Li
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Key Laboratory of Molecular Biology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Yan Lu
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Key Laboratory of Molecular Biology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Shigan Fu
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Xieju Xie
- Department of Physiology and Pathophysiology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Hua Xia
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Key Laboratory of Molecular Biology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Xu Dong
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Key Laboratory of Molecular Biology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Yi Chen
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Key Laboratory of Molecular Biology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
| | - Ming Quan
- Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shaojiang Zheng
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Tumor Institute, Affiliated Hospital of Hainan Medical College, Haikou, Hainan 570102, P. R. China
| | - Keping Xie
- Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mengsen Li
- Hainan Provincial Key Laboratory of Carcinogenesis and Intervention, Hainan Medical College, Haikou, Hainan 571199, P. R. China.,Key Laboratory of Molecular Biology, Hainan Medical College, Haikou, Hainan 571199, P. R. China
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41
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Park GS, Kim JH. Myeloid differentiation primary response gene 88-leukotriene B4 receptor 2 cascade mediates lipopolysaccharide-potentiated invasiveness of breast cancer cells. Oncotarget 2016; 6:5749-59. [PMID: 25691060 PMCID: PMC4467399 DOI: 10.18632/oncotarget.3304] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 01/02/2015] [Indexed: 12/25/2022] Open
Abstract
Inflammation and local inflammatory mediators are inextricably linked to tumor progression through complex pathways in the tumor microenvironment. Lipopolysaccharide (LPS) exposure to tumor cells has been suggested to promote tumor invasiveness and metastasis. However, the detailed signaling mechanism involved has not been elucidated. In this study, we showed that LPS upregulated the expression of leukotriene B4 receptor-2 (BLT2) and the synthesis of BLT2 ligands in MDA-MB-231 and MDA-MB-435 breast cancer cells, thereby promoting invasiveness. BLT2 depletion with siRNA clearly attenuated LPS-induced invasiveness. In addition, we demonstrated that myeloid differentiation primary response gene 88 (MyD88) lies upstream of BLT2 in LPS-potentiated invasiveness and that this ‘MyD88-BLT2’ cascade mediates activation of NF-κB and the synthesis of IL-6 and IL-8, which are critical for the invasiveness and aggression of breast cancer cells. LPS-driven metastasis of MDA-MB-231 cells was also markedly suppressed by the inhibition of BLT2. Together, our results demonstrate, for the first time, that LPS potentiates the invasiveness and metastasis of breast cancer cells via a ‘MyD88-BLT2’-linked signaling cascade.
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Affiliation(s)
- Geun-Soo Park
- College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Jae-Hong Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
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42
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Lan T, Chang L, Wu L, Yuan YF. IL-6 Plays a Crucial Role in HBV Infection. J Clin Transl Hepatol 2015; 3:271-6. [PMID: 26807383 PMCID: PMC4721895 DOI: 10.14218/jcth.2015.00024] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/17/2015] [Accepted: 10/11/2015] [Indexed: 01/05/2023] Open
Abstract
Interleukin-6 (IL-6), a cytokine mainly produced by activated monocytes, has broad pleiotropic actions that affect the functions of a variety of lymphoid cells. The roles of IL-6 in regulating immunity to infections are currently being defined. Remarkably, IL-6-mediated cellular and humoral immune responses play a crucial role in determining the outcome of viral infection. This article reviews the current knowledge on the critical role of IL-6 in hepatitis B virus (HBV) infection. As a competent intermediary, IL-6 derived from activated monocytes plays an important role in promoting lymphocytes responses that are essential for effective viral control. However, as a mediator of inflammation, IL-6 is also involved in the development of HBV-induced liver cirrhosis and exacerbating liver injury. Overall, the current data point to IL-6 as an immunoregulatory cytokine in HBV infection. Immunotherapeutic strategies aimed at optimizing the beneficial effects of IL-6 in HBV infection may prove to be an ordeal in the future, as they should foster the strengths of IL-6 while circumventing potential drawbacks.
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Affiliation(s)
- Tian Lan
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
| | - Lei Chang
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
| | - Long Wu
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
| | - Yu-Feng Yuan
- Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan, China
- Correspondence to: Yu-Feng Yuan, Zhongnan Hospital of Wuhan University, Department of Hepatobiliary Surgery, Wuhan University, Wuhan 430071, Hubei, China. Tel: +86-027-67812888, Fax: +86-027-67812892, E-mail:
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43
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Chang TS, Wu YC, Chi CC, Su WC, Chang PJ, Lee KF, Tung TH, Wang J, Liu JJ, Tung SY, Kuo LM, Ho HN, Ling TY, Huang YH. Activation of IL6/IGFIR confers poor prognosis of HBV-related hepatocellular carcinoma through induction of OCT4/NANOG expression. Clin Cancer Res 2015; 21:201-10. [PMID: 25564572 DOI: 10.1158/1078-0432.ccr-13-3274] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To unravel the role of interleukin (IL)-6 and insulin-like growth factor (IGF)-I receptor (IGFIR) in expressing stemness-related properties and to evaluate the prognostic values of pluripotent transcription factor OCT4/NANOG, and IGFIR in hepatocellular carcinoma (HCC). EXPERIMENTAL DESIGN Serum levels of IL6 were detected using ELISA assays (n = 120). The effects of IL6/IGFI on stemness expression in HCC were examined using OCT4/NANOG promoter luciferase reporter, RNA interference, secondary sphere formation, side population, and xenograft animal models. The OCT4/NANOG protein and phospho-IGFI receptor (p-IGFIR) in tissues were detected by Western blotting (n = 8) and immunohistochemical staining (n = 85). OCT4, NANOG, and IGFIR expression levels in tissues (n = 191) were analyzed by real-time qRT-PCR and was correlated with early tumor recurrence using the Kaplan-Meier survival analysis. RESULTS A high positive correlation between the expression levels of OCT4/NANOG and IGFIR/p-IGFIR in human HCC tissues was observed. The concurrent expression of OCT4/NANOG/IGFIR was mostly confined to hepatitis B virus (HBV)-related HCC (HBV-HCC) and was significantly correlated with early tumor recurrence. High serum levels of IL6 were significantly correlated with high OCT4/NANOG expression. IL6 stimulated an autocrine IGFI/IGFIR expression STAT3 dependently, which stimulated stemness-related properties in both the cell lines and the xenografted mouse tumors. The inhibition of IGFIR activation by either RNA interference or by treatment with the inhibitor picropodophyllin (PPP) significantly suppressed the IL6-induced stemness-related properties both in vitro and in vivo. CONCLUSIONS The expression of pluripotency-related genes is associated with early tumor recurrence and is regulated by IL6-induced IGF/IGFIR activation, particularly in HBV-HCC.
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Affiliation(s)
- Te-Sheng Chang
- Department of Biochemistry and Molecular Cell Biology, College of Medicine, Taipei Medical University, Taipei, Taiwan. Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan. Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yu-Chih Wu
- Department of Biochemistry and Molecular Cell Biology, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ching-Chi Chi
- College of Medicine, Chang Gung University, Taoyuan, Taiwan. Department of Dermatology and Centre for Evidence-Based Medicine, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Wei-Chi Su
- Department of Biochemistry and Molecular Cell Biology, College of Medicine, Taipei Medical University, Taipei, Taiwan. Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Pey-Jium Chang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Kam-Fai Lee
- Department of Pathology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Tao-Hsin Tung
- Department of Medical Research and Education, Cheng-Hsin General Hospital, and Faculty of Public Health, School of Medicine, Fu-Jen Catholic University, Taipei, Taiwan
| | - Jui Wang
- School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Jun-Jen Liu
- School of Medical Laboratory Sciences and Biotechnology, Taipei Medical University, Taipei, Taiwan
| | - Shui-Yi Tung
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Chiayi, Taiwan. College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Liang-Mou Kuo
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan. Department of General Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Hong-Nerng Ho
- Graduate Institute of Clinical Genomics, College of Medicine, National Taiwan University, Taipei, Taiwan. Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, National Taiwan University and Hospital, Taipei, Taiwan
| | - Thai-Yen Ling
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Yen-Hua Huang
- Department of Biochemistry and Molecular Cell Biology, College of Medicine, Taipei Medical University, Taipei, Taiwan. Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan. Center for Reproductive Medicine, Taipei Medical University Hospital, Taipei, Taiwan. Comprehensive Cancer Center of Taipei Medical University, Taipei, Taiwan. The Ph.D. Program for Translational Medicine, Taipei Medical University, Taipei, Taiwan.
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44
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Luo MXM, Wong SH, Chan MTV, Yu L, Yu SSB, Wu F, Xiao Z, Wang X, Zhang L, Cheng ASL, Ng SSM, Chan FKL, Cho CH, Yu J, Sung JJY, Wu WKK. Autophagy Mediates HBx-Induced Nuclear Factor-κB Activation and Release of IL-6, IL-8, and CXCL2 in Hepatocytes. J Cell Physiol 2015; 230:2382-9. [PMID: 25708728 DOI: 10.1002/jcp.24967] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 02/18/2015] [Indexed: 12/30/2022]
Abstract
Hepatitis B virus (HBV) and one of its encoded proteins, HBV X protein (HBx), have been shown to induce autophagy in hepatoma cells. Substantial evidence indicates that autophagy is a potent suppressor of inflammation. However, sporadic reports suggest that autophagy could promote pro-inflammatory cytokine expression and inflammation in some biological contexts. Here, we show that overexpression of HBx induces LC3B-positive autophagosome formation, increases autophagic flux and enhances the expression of ATG5, ATG7, and LC3B-II in normal hepatocytes. Abrogation of autophagy by small interfering RNA against ATG5 and ATG7 prevents HBx-induced formation of autophagosomes. Autophagy inhibition also abrogates HBx-induced activation of nuclear factor-κB (NF-κB) and production of interleukin-6 (IL-6), IL-8, and CXCL2. These findings suggest that autophagy is required for HBx-induced NF-κB activation and pro-inflammatory cytokine production and could shed new light on the complex role of autophagy in the modulation of inflammation.
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Affiliation(s)
- Millore X M Luo
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Sunny H Wong
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Matthew T V Chan
- Department of Anaesthesia & Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Le Yu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Sidney S B Yu
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Feng Wu
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhangang Xiao
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaojuan Wang
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Lin Zhang
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Alfred S L Cheng
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.,School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Simon S M Ng
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Francis K L Chan
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi H Cho
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.,School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Jun Yu
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Joseph J Y Sung
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - William K K Wu
- State Key Laboratory of Digestive Diseases, Institute of Digestive Diseases, LKS Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Anaesthesia & Intensive Care, The Chinese University of Hong Kong, Hong Kong, China
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45
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Zhan Y, Xiang F, Wu R, Xu J, Ni Z, Jiang J, Kang X. MiRNA-149 modulates chemosensitivity of ovarian cancer A2780 cells to paclitaxel by targeting MyD88. J Ovarian Res 2015. [PMID: 26223974 PMCID: PMC4520014 DOI: 10.1186/s13048-015-0178-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background The low effectiveness of anticancer drugs remains a major unresolved obstacle to successful chemotherapy. Recently, much evidence on the roles of miRNAs in determining drug-sensitivity/resistance has been emerging. The relationship between miRNA-149 expression and paclitaxel chemoresistance in human ovarian cancer cells remains largely unknown. Methods This study investigated the relationship between miRNA-149 expression and the sensitivity of ovarian cancer A2780 cells to paclitaxel treatment. To achieve the down-regulation of miRNA-149 gene expression in A2780 cell line, the cells were infected with lentivirus carrying inhibitor of miRNA-149. Western blot and qRT-PCR were used to detect relevant protein levels and the expressions of mRNAs of interest. Cell proliferation was measured by CCK-8 assay. Flow cytometry was used to measure cell cycle and apoptosis. Transwell migration assay was used to observe the change of migration of transfected cells. Results Down-regulation of miRNA-149 decreased the sensitivity of ovarian cancer A2780 cells to paclitaxel. After paclitaxel treatment, decreased apoptosis and G2 phase ratio, increased cell migration, increased level of Bcl-2, and decreased level of Bax were found in miRNA-149-down-regulated A2780 cells. MiRNA-149 down-regulation resulted in increased expression of MyD88 in A2780 cells. Down-regulation of miRNA-149 in A2780 cells increased MyD88 expression and decreased their sensitivity to paclitaxel treatment. Conclusion Our findings suggest that miRNA-149 mediates the susceptibility of paclitaxel by regulating MyD88 expression in ovarian cancer cells.
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Affiliation(s)
- Yueping Zhan
- Department of Central Lab, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China.
| | - Fenfen Xiang
- Department of Laboratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China.
| | - Rong Wu
- Department of Laboratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China.
| | - Jian Xu
- Department of Central Lab, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China.
| | - Zhenhua Ni
- Department of Central Lab, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China.
| | - Jiemin Jiang
- Department of Laboratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China.
| | - Xiangdong Kang
- Department of Central Lab, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China. .,Department of Laboratory Medicine, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, P.R. China.
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46
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Lv M, Zhang B, Shi Y, Han Z, Zhang Y, Zhou Y, Zhang W, Niu J, Yu XF. Identification of BST-2/tetherin-induced hepatitis B virus restriction and hepatocyte-specific BST-2 inactivation. Sci Rep 2015; 5:11736. [PMID: 26119070 PMCID: PMC4484258 DOI: 10.1038/srep11736] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 05/05/2015] [Indexed: 12/25/2022] Open
Abstract
BST-2/tetherin is an interferon-inducible antiviral protein that blocks the release of various enveloped viruses, including HIV-1. Hepatitis B virus (HBV), a major cause of liver disease, belongs to the Hepadnaviridae family of enveloped DNA viruses. Whether BST-2 regulates HBV production is largely unknown. In this report, we have demonstrated that HBV particle release is modulated by BST-2 in a cell type-dependent fashion. In HEK293T cells, ectopically expressed or interferon-induced BST-2 strongly inhibited HBV release. BST-2 co-localized with HBV surface protein at multivesicular bodies (MVBs) and physically interacted with HBV particles. However, exogenous BST-2-induced HBV restriction was weak in Huh-7 hepatoma cells, and the interferon-induced anti-HBV effect was independent of BST-2 induction in hepatic L02 cells. Notably, HBV could promote HIV-1 ΔVpu virus release from BST-2-positive HepG2 hepatoma cells but not HeLa cells, whereas Vpu failed to efficiently inhibit BST-2-induced HBV restriction. HBx exhibited an enhanced interaction and co-localization with BST-2 in hepatocytes. These observations indicate that BST-2 restricts HBV production at intracellular MVBs but is inactivated by HBV through a novel mechanism requiring hepatocyte-specific cellular co-factors or a hepatocyte-specific environment. Further understanding of BST-2-induced HBV restriction may provide new therapeutic targets for future HBV treatments.
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Affiliation(s)
- Mingyu Lv
- 1] Institute of Virology and AIDS Research, First Hospital of Jilin University, Changchun, P. R. China [2] Department of Hepatology, First Hospital of Jilin University, Changchun, P. R. China
| | - Biao Zhang
- 1] Institute of Virology and AIDS Research, First Hospital of Jilin University, Changchun, P. R. China [2] School of Pharmaceutical Sciences, Jilin University, Changchun, P. R. China
| | - Ying Shi
- Institute of Virology and AIDS Research, First Hospital of Jilin University, Changchun, P. R. China
| | - Zhu Han
- Institute of Virology and AIDS Research, First Hospital of Jilin University, Changchun, P. R. China
| | - Yan Zhang
- School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Yulai Zhou
- School of Pharmaceutical Sciences, Jilin University, Changchun, P. R. China
| | - Wenyan Zhang
- Institute of Virology and AIDS Research, First Hospital of Jilin University, Changchun, P. R. China
| | - Junqi Niu
- Department of Hepatology, First Hospital of Jilin University, Changchun, P. R. China
| | - Xiao-Fang Yu
- 1] Institute of Virology and AIDS Research, First Hospital of Jilin University, Changchun, P. R. China [2] Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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47
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Duan B, Zheng X, Xia Z, Fan X, Guo L, Liu J, Wang Y, Ye Q, Zhang L. Highly biocompatible nanofibrous microspheres self-assembled from chitin in NaOH/urea aqueous solution as cell carriers. Angew Chem Int Ed Engl 2015; 54:5152-6. [PMID: 25712796 DOI: 10.1002/anie.201412129] [Citation(s) in RCA: 148] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 01/22/2015] [Indexed: 12/29/2022]
Abstract
In this work, chitin microspheres (NCM) having a nanofibrous architecture were constructed using a "bottom-up" fabrication pathway. The chitin chains rapidly self-assembled into nanofibers in NaOH/urea aqueous solution by a thermally induced method and subsequently formed weaved microspheres. The diameter of the chitin nanofibers and the size of the NCM were tunable by controlling the temperature and the processing parameters to be in the range from 26 to 55 nm and 3 to 130 μm, respectively. As a result of the nanofibrous surface and the inherent biocompatibility of chitin, cells could adhere to the chitin microspheres and showed a high attachment efficiency, indicating the great potential of the NCM for 3D cell microcarriers.
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Affiliation(s)
- Bo Duan
- College of Chemistry & Molecule Science, Wuhan University, Wuhan, 430072 (China)
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48
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Duan B, Zheng X, Xia Z, Fan X, Guo L, Liu J, Wang Y, Ye Q, Zhang L. Highly Biocompatible Nanofibrous Microspheres Self-Assembled from Chitin in NaOH/Urea Aqueous Solution as Cell Carriers. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201412129] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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49
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Wu Q, Liu HO, Liu YD, Liu WS, Pan D, Zhang WJ, Yang L, Fu Q, Xu JJ, Gu JX. Decreased expression of hepatocyte nuclear factor 4α (Hnf4α)/microRNA-122 (miR-122) axis in hepatitis B virus-associated hepatocellular carcinoma enhances potential oncogenic GALNT10 protein activity. J Biol Chem 2015; 290:1170-85. [PMID: 25422324 PMCID: PMC4294483 DOI: 10.1074/jbc.m114.601203] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/16/2014] [Indexed: 12/19/2022] Open
Abstract
MicroRNA-122 (miR-122), a mammalian liver-specific miRNA, has been reported to play crucial roles in the control of diverse aspects of hepatic function and dysfunction, including viral infection and hepatocarcinogenesis. In this study, we explored the clinical significance, transcriptional regulation, and direct target of miR-122 in hepatitis B virus (HBV)-associated hepatocellular carcinoma. Reduced expression of miR-122 in patients with HBV-associated hepatocellular carcinoma was correlated with venous invasion and poor prognosis. Furthermore, UDP-N-acetyl-α-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase-10 (GALNT10) was identified as a bona fide target of miR-122 in hepatoma cells. Ectopic expression and knockdown studies showed that GALNT10 indeed promotes proliferation and apoptosis resistance of hepatoma cells in a glycosyltransferase-dependent manner. Critically, adverse correlation between miR-122 and GALNT10, a poor prognosticator of clinical outcome, was demonstrated in hepatoma patients. Hepatocyte nuclear factor 4α (Hnf4α), a liver-enriched transcription factor that activates miR-122 gene transcription, was suppressed in HBV-infected hepatoma cells. Chromatin immunoprecipitation assay showed significantly reduced association of Hnf4α with the miR-122 promoter in HBV-infected hepatoma cells. Moreover, GALNT10 was found to intensify O-glycosylation following signal activation of the epidermal growth factor receptor. In addition, in a therapeutic perspective, we proved that GALNT10 silencing increases sensitivity to sorafenib and doxorubicin challenge. In summary, our results reveal a novel Hnf4α/miR-122/GALNT10 regulatory pathway that facilitates EGF miR-122 activation and hepatoma growth in HBV-associated hepatocarcinogenesis.
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Affiliation(s)
- Qian Wu
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Hai-Ou Liu
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Yi-Dong Liu
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Wei-Si Liu
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Deng Pan
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Wei-Juan Zhang
- Department of Immunology, School of Basic Medical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Liu Yang
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Qiang Fu
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Jie-Jie Xu
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
| | - Jian-Xin Gu
- From the Key Laboratory of Glycoconjugate Research, Ministry of Health, Department of Biochemistry and Molecular Biology and
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50
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Quetier I, Brezillon N, Revaud J, Ahodantin J, DaSilva L, Soussan P, Kremsdorf D. C-terminal-truncated hepatitis B virus X protein enhances the development of diethylnitrosamine-induced hepatocellular carcinogenesis. J Gen Virol 2014; 96:614-625. [PMID: 25519169 DOI: 10.1099/vir.0.070680-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hepatitis B virus X protein (HBx) is involved in the development of hepatocellular carcinoma (HCC). The HBx sequence is a preferential site of integration into the human genome, leading to the formation of C-terminal-truncated HBx proteins (Ct-HBx). We previously reported that Ct-HBx proteins were able to potentiate cell transformation in vitro. Our present goal was to compare the ability of Ct-HBx and full-length HBx (FL-HBx) proteins to develop or enhance HCC in transgenic mice. In the absence of treatment, neither Ct-HBx- nor FL-HBx-transgenic mice developed HCC. In young mice treated with diethylnitrosamine (DEN) at 8 months of age, a significantly higher incidence and number of liver lesions were observed in Ct-HBx mice than in FL-HBx and control mice. The earlier development of tumours in Ct-HBx-transgenic mice was associated with increased liver inflammation. At 10 months, macroscopic and microscopic analyses showed that, statistically, FL-HBx mice developed more liver lesions with a larger surface area than control mice. Furthermore, during DEN-induced initiation of HCC, Ct-HBx- and FL-HBx-transgenic mice showed higher expression of IL-6, TNF-α and IL-1β transcripts, activation of STAT3, ERK and JNK proteins and an increase in cell apoptosis. In conclusion, in DEN-treated transgenic mice, the expression of Ct-HBx protein causes a more rapid onset of HCC than does FL-HBx protein. HBV genome integration leading to the expression of a truncated form of HBx protein may therefore facilitate HCC development in chronically infected patients.
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Affiliation(s)
- Ivan Quetier
- Institut Pasteur, Département de Virologie, Paris, France
- Université Paris Descartes, Sorbonne Paris-Cité, Faculté de Médecine Necker, Paris, France
- Inserm, U845, Team 'Pathogenèse des hépatites virales B et immunothérapie', Paris, France
| | - Nicolas Brezillon
- Université Paris Descartes, Sorbonne Paris-Cité, Faculté de Médecine Necker, Paris, France
- Inserm, U845, Team 'Pathogenèse des hépatites virales B et immunothérapie', Paris, France
- Institut Pasteur, Département de Virologie, Paris, France
| | - Julien Revaud
- Institut Pasteur, Département de Virologie, Paris, France
- Université Paris Descartes, Sorbonne Paris-Cité, Faculté de Médecine Necker, Paris, France
- Inserm, U845, Team 'Pathogenèse des hépatites virales B et immunothérapie', Paris, France
| | - James Ahodantin
- Institut Pasteur, Département de Virologie, Paris, France
- Université Paris Descartes, Sorbonne Paris-Cité, Faculté de Médecine Necker, Paris, France
- Inserm, U845, Team 'Pathogenèse des hépatites virales B et immunothérapie', Paris, France
| | - Lucie DaSilva
- Institut Pasteur, Département de Virologie, Paris, France
- Université Paris Descartes, Sorbonne Paris-Cité, Faculté de Médecine Necker, Paris, France
- Inserm, U845, Team 'Pathogenèse des hépatites virales B et immunothérapie', Paris, France
| | - Patrick Soussan
- Université Paris Descartes, Sorbonne Paris-Cité, Faculté de Médecine Necker, Paris, France
- Institut Pasteur, Département de Virologie, Paris, France
- Service de Virologie, Hôpital Tenon, Paris, France
- Université Pierre et Marie Curie, Paris, France
- Inserm, U845, Team 'Pathogenèse des hépatites virales B et immunothérapie', Paris, France
| | - Dina Kremsdorf
- Institut Pasteur, Département de Virologie, Paris, France
- Université Paris Descartes, Sorbonne Paris-Cité, Faculté de Médecine Necker, Paris, France
- Inserm, U845, Team 'Pathogenèse des hépatites virales B et immunothérapie', Paris, France
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