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Liang T, Zhang Z, Bai Z, Xu L, Xu W. STAT3 Increases CVB3 Replication and Acute Pancreatitis and Myocarditis Pathology via Impeding Nuclear Translocation of STAT1 and Interferon-Stimulated Gene Expression. Int J Mol Sci 2024; 25:9007. [PMID: 39201692 PMCID: PMC11354559 DOI: 10.3390/ijms25169007] [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: 07/04/2024] [Revised: 08/11/2024] [Accepted: 08/14/2024] [Indexed: 09/03/2024] Open
Abstract
Acute pancreatitis (AP) is an inflammatory disease initiated by the death of exocrine acinar cells, but its pathogenesis remains unclear. Signal transducer and activator of transcription 3 (STAT3) is a multifunctional factor that regulates immunity and the inflammatory response. The protective role of STAT3 is reported in Coxsackievirus B3 (CVB3)-induced cardiac fibrosis, yet the exact role of STAT3 in modulating viral-induced STAT1 activation and type I interferon (IFN)-stimulated gene (ISG) transcription in the pancreas remains unclarified. In this study, we tested whether STAT3 regulated viral-induced STAT1 translocation. We found that CVB3, particularly capsid VP1 protein, markedly upregulated the phosphorylation and nuclear import of STAT3 (p-STAT3) while it significantly impeded the nuclear translocation of p-STAT1 in the pancreases and hearts of mice on day 3 postinfection (p.i.). Immunoblotting and an immunofluorescent assay demonstrated the increased expression and nuclear translocation of p-STAT3 but a blunted p-STAT1 nuclear translocation in CVB3-infected acinar 266-6 cells. STAT3 shRNA knockdown or STAT3 inhibitors reduced viral replication via the rescue of STAT1 nuclear translocation and increasing the ISRE activity and ISG transcription in vitro. The knockdown of STAT1 blocked the antiviral effect of the STAT3 inhibitor. STAT3 inhibits STAT1 activation by virally inducing a potent inhibitor of IFN signaling, the suppressor of cytokine signaling-3 ((SOCS)-3). Sustained pSTAT1 and the elevated expression of ISGs were induced in SOCS3 knockdown cells. The in vivo administration of HJC0152, a pharmaceutical STAT3 inhibitor, mitigated the viral-induced AP and myocarditis pathology via increasing the IFNβ as well as ISG expression on day 3 p.i. and reducing the viral load in multi-organs. These findings define STAT3 as a negative regulator of the type I IFN response via impeding the nuclear STAT1 translocation that otherwise triggers ISG induction in infected pancreases and hearts. Our findings identify STAT3 as an antagonizing factor of the IFN-STAT1 signaling pathway and provide a potential therapeutic target for viral-induced AP and myocarditis.
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Affiliation(s)
| | | | | | | | - Wei Xu
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215123, China
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Oh S, Mandell MA. Regulation of Mitochondria-Derived Immune Activation by 'Antiviral' TRIM Proteins. Viruses 2024; 16:1161. [PMID: 39066323 PMCID: PMC11281404 DOI: 10.3390/v16071161] [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: 06/25/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Mitochondria are key orchestrators of antiviral responses that serve as platforms for the assembly and activation of innate immune-signaling complexes. In response to viral infection, mitochondria can be triggered to release immune-stimulatory molecules that can boost interferon production. These same molecules can be released by damaged mitochondria to induce pathogenic, antiviral-like immune responses in the absence of infection. This review explores how members of the tripartite motif-containing (TRIM) protein family, which are recognized for their roles in antiviral defense, regulate mitochondria-based innate immune activation. In antiviral defense, TRIMs are essential components of immune signal transduction pathways and function as directly acting viral restriction factors. TRIMs carry out conceptually similar activities when controlling immune activation related to mitochondria. First, they modulate immune-signaling pathways that can be activated by mitochondrial molecules. Second, they co-ordinate the direct removal of mitochondria and associated immune-activating factors through mitophagy. These insights broaden the scope of TRIM actions in innate immunity and may implicate TRIMs in diseases associated with mitochondria-derived inflammation.
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Affiliation(s)
- Seeun Oh
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
| | - Michael A. Mandell
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
- Autophagy, Inflammation and Metabolism Center of Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
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Won J, Kang HS, Kim NY, Dezhbord M, Marakkalage KG, Lee EH, Lee D, Park S, Kim DS, Kim KH. Tripartite motif-containing protein 21 is involved in IFN-γ-induced suppression of hepatitis B virus by regulating hepatocyte nuclear factors. J Virol 2024; 98:e0046824. [PMID: 38780244 PMCID: PMC11237615 DOI: 10.1128/jvi.00468-24] [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: 03/14/2024] [Accepted: 04/03/2024] [Indexed: 05/25/2024] Open
Abstract
The antiviral role of the tripartite motif-containing (TRIM) protein family , a member of the E3-ubiquitin ligase family, has recently been actively studied. Hepatitis B virus (HBV) infection is a major contributor to liver diseases; however, the host factors regulated by cytokine-inducible TRIM21 to suppress HBV remain unclear. In this study, we showed the antiviral efficacy of TRIM21 against HBV in hepatoma cell lines, primary human hepatocytes isolated from patient liver tissues, and mouse model. Using TRIM21 knock-out cells, we confirmed that the antiviral effects of interferon-gamma, which suppress HBV replication, are diminished when TRIM21 is deficient. Northern blot analysis confirmed a reduction of HBV RNA levels by TRIM21. Using Luciferase reporter assay, we also discovered that TRIM21 decreases the activity of HBV enhancers, which play a crucial role in covalently closed circular DNA transcription. The participation of the RING domain and PRY-SPRY domain in the anti-HBV effect of TRIM21 was demonstrated through experiments using deletion mutants. We identified a novel interaction between TRIM21 and hepatocyte nuclear factor 4α (HNF4α) through co-immunoprecipitation assay. More specifically, ubiquitination assay revealed that TRIM21 promotes ubiquitin-mediated proteasomal degradation of HNF4α. HNF1α transcription is down-regulated as a result of the degradation of HNF4α, an activator for the HNF1α promoter. Therefore, the reduction of key HBV enhancer activators, HNF4α and HNF1α, by TRIM21 resulted in a decline in HBV transcription, ultimately leading to the inhibition of HBV replication.IMPORTANCEDespite extensive research efforts, a definitive cure for chronic hepatitis B remains elusive, emphasizing the persistent importance of this viral infection as a substantial public health concern. Although the risks associated with hepatitis B virus (HBV) infection are well known, host factors capable of suppressing HBV are largely uncharacterized. This study elucidates that tripartite motif-containing protein 21 (TRIM21) suppresses HBV transcription and consequently inhibits HBV replication by downregulating the hepatocyte nuclear factors, which are host factors associated with the HBV enhancers. Our findings demonstrate a novel anti-HBV mechanism of TRIM21 in interferon-gamma-induced anti-HBV activity. These findings may contribute to new strategies to block HBV.
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Affiliation(s)
- Juhee Won
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Republic of Korea
| | - Hong Seok Kang
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Republic of Korea
| | - Na Yeon Kim
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Mehrangiz Dezhbord
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | | | - Eun-Hwi Lee
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Donghyo Lee
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Soree Park
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Dong-Sik Kim
- Department of Surgery, Division of HBP Surgery and Liver Transplantation, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyun-Hwan Kim
- Department of Precision Medicine, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
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4
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Zhao G, Zhang HM, Nasseri AR, Yip F, Telkar N, Chen YT, Aghakeshmiri S, Küper C, Lam W, Yang W, Zhao J, Luo H, McManus BM, Yang D. Heart-specific NFAT5 knockout suppresses type I interferon signaling and aggravates coxsackievirus-induced myocarditis. Basic Res Cardiol 2024:10.1007/s00395-024-01058-w. [PMID: 38834767 DOI: 10.1007/s00395-024-01058-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 06/06/2024]
Abstract
Nuclear factor of activated T cells 5 (NFAT5) is an osmosensitive transcription factor that is well-studied in renal but rarely explored in cardiac diseases. Although the association of Coxsackievirus B3 (CVB3) with viral myocarditis is well-established, the role of NFAT5 in this disease remains largely unexplored. Previous research has demonstrated that NFAT5 restricts CVB3 replication yet is susceptible to cleavage by CVB3 proteases. Using an inducible cardiac-specific Nfat5-knockout mouse model, we uncovered that NFAT5-deficiency exacerbates cardiac pathology, worsens cardiac function, elevates viral load, and reduces survival rates. RNA-seq analysis of CVB3-infected mouse hearts revealed the significant impact of NFAT5-deficiency on gene pathways associated with cytokine signaling and inflammation. Subsequent in vitro and in vivo investigation validated the disruption of the cytokine signaling pathway in response to CVB3 infection, evidenced by reduced expression of key cytokines such as interferon β1 (IFNβ1), C-X-C motif chemokine ligand 10 (CXCL10), interleukin 6 (IL6), among others. Furthermore, NFAT5-deficiency hindered the formation of stress granules, leading to a reduction of important stress granule components, including plakophilin-2, a pivotal protein within the intercalated disc, thereby impacting cardiomyocyte structure and function. These findings unveil a novel mechanism by which NFAT5 inhibits CVB3 replication and pathogenesis through the promotion of antiviral type I interferon signaling and the formation of cytoplasmic stress granules, collectively identifying NFAT5 as a new cardio protective protein.
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Affiliation(s)
- Guangze Zhao
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada
| | - Huifang M Zhang
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada
| | - Ali Reza Nasseri
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada
| | - Fione Yip
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada
| | - Nikita Telkar
- British Columbia Cancer Research Centre, University of British Columbia, Vancouver, Canada
- British Columbia Children's Hospital Research Institute, Vancouver, Canada
| | - Yankuan T Chen
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada
| | - Sana Aghakeshmiri
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada
| | - Christoph Küper
- MSH Medical School Hamburg, IMM Institute for Molecular Medicine, Medical University, Hamburg, Germany
| | - Wan Lam
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
- British Columbia Cancer Research Centre, University of British Columbia, Vancouver, Canada
| | - Wenli Yang
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - James Zhao
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada
| | - Honglin Luo
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada.
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada.
| | - Bruce M McManus
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada.
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada.
| | - Decheng Yang
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada.
- Centre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, B.C, V6Z 1Y6, Canada.
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5
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Peng Y, Yang Y, Li Y, Shi T, Xu N, Liu R, Luan Y, Yao Y, Yin C. Mitochondrial (mt)DNA-cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling promotes pyroptosis of macrophages via interferon regulatory factor (IRF)7/IRF3 activation to aggravate lung injury during severe acute pancreatitis. Cell Mol Biol Lett 2024; 29:61. [PMID: 38671352 PMCID: PMC11055249 DOI: 10.1186/s11658-024-00575-9] [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: 01/10/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Macrophage proinflammatory activation contributes to the pathology of severe acute pancreatitis (SAP) and, simultaneously, macrophage functional changes, and increased pyroptosis/necrosis can further exacerbate the cellular immune suppression during the process of SAP, where cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) plays an important role. However, the function and mechanism of cGAS-STING in SAP-induced lung injury (LI) remains unknown. METHODS Lipopolysaccharide (LPS) was combined with caerulein-induced SAP in wild type, cGAS -/- and sting -/- mice. Primary macrophages were extracted via bronchoalveolar lavage and peritoneal lavage. Ana-1 cells were pretreated with LPS and stimulated with nigericin sodium salt to induce pyroptosis in vitro. RESULTS SAP triggered NOD-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome activation-mediated pyroptosis of alveolar and peritoneal macrophages in mouse model. Knockout of cGAS/STING could ameliorate NLRP3 activation and macrophage pyroptosis. In addition, mitochondrial (mt)DNA released from damaged mitochondria further induced macrophage STING activation in a cGAS- and dose-dependent manner. Upregulated STING signal can promote NLRP3 inflammasome-mediated macrophage pyroptosis and increase serum interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α levels and, thus, exacerbate SAP-associated LI (SAP-ALI). Downstream molecules of STING, IRF7, and IRF3 connect the mtDNA-cGAS-STING axis and the NLRP3-pyroptosis axis. CONCLUSIONS Negative regulation of any molecule in the mtDNA-cGAS-STING-IRF7/IRF3 pathway can affect the activation of NLRP3 inflammasomes, thereby reducing macrophage pyroptosis and improving SAP-ALI in mouse model.
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Affiliation(s)
- Yiqiu Peng
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Yuxi Yang
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Yingying Li
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Tingjuan Shi
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Ning Xu
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Ruixia Liu
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Yingyi Luan
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China.
| | - Yongming Yao
- Translational Medicine Research Center, Medical Innovation Research Division and Fourth Medical Center of the Chinese People's Liberation Army (PLA) General Hospital, Beijing, 100048, China.
| | - Chenghong Yin
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, No. 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China.
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Guo YY, Gao Y, Zhao YL, Xie C, Gan H, Cheng X, Yang LP, Hu J, Shu HB, Zhong B, Lin D, Yao J. Viral infection and spread are inhibited by the polyubiquitination and downregulation of TRPV2 channel by the interferon-stimulated gene TRIM21. Cell Rep 2024; 43:114095. [PMID: 38613787 DOI: 10.1016/j.celrep.2024.114095] [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: 11/28/2023] [Revised: 03/08/2024] [Accepted: 03/27/2024] [Indexed: 04/15/2024] Open
Abstract
Interferon (IFN) contributes to the host's antiviral response by inducing IFN-stimulated genes (ISGs). However, their functional targets and the mechanism of action remain elusive. Here, we report that one such ISG, TRIM21, interacts with and degrades the TRPV2 channel in myeloid cells, reducing its expression and providing host protection against viral infections. Moreover, viral infection upregulates TRIM21 in paracrine and autocrine manners, downregulating TRPV2 in neighboring cells to prevent viral spread to uninfected cells. Consistently, the Trim21-/- mice are more susceptible to HSV-1 and VSV infection than the Trim21+/+ littermates, in which viral susceptibility is rescued by inhibition or deletion of TRPV2. Mechanistically, TRIM21 catalyzes the K48-linked ubiquitination of TRPV2 at Lys295. TRPV2K295R is resistant to viral-infection-induced TRIM21-dependent ubiquitination and degradation, promoting viral infection more profoundly than wild-type TRPV2 when reconstituted into Lyz2-Cre;Trpv2fl/fl myeloid cells. These findings characterize targeting the TRIM21-TRPV2 axis as a conducive strategy to control viral spread to bystander cells.
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Affiliation(s)
- Yu-Yao Guo
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China; Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430072, Hubei, China
| | - Yue Gao
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China
| | - Yun-Lin Zhao
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China
| | - Chang Xie
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China
| | - Hu Gan
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China
| | - Xufeng Cheng
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China
| | - Li-Ping Yang
- Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430072, Hubei, China
| | - Junyan Hu
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China
| | - Hong-Bing Shu
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China; Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430072, Hubei, China
| | - Bo Zhong
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China; Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430072, Hubei, China; Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan 430072, Hubei, China.
| | - Dandan Lin
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China.
| | - Jing Yao
- Cancer Center, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Frontier Science Center of Immunology and Metabolism, Wuhan University, Wuhan 430072, Hubei, China; Hubei Key Laboratory of Cell Homeostasis, Wuhan University, Wuhan 430072, Hubei, China.
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Yuan J, Pan J, Zhang X, Gao R. TRIM21 reduces H1N1-induced inflammation and apoptosis by regulating the TBK1-IRF3 signaling pathway in A549 cells. Arch Virol 2024; 169:74. [PMID: 38480558 DOI: 10.1007/s00705-024-05989-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 12/29/2023] [Indexed: 04/10/2024]
Abstract
Triple motif protein 21 (TRIM21) has an antiviral function that inhibits various viral infections. However, its role in the progress of influenza A virus (IAV) infection is unclear. In this study, we investigated the role and molecular mechanism of TRIM21 in IAV infection. RT-qPCR was used to determine the level of TRIM21 mRNA, and ELISA was used to measure the levels of IFN-α, IFN-β, IL-6, and TNF-α. The levels of the TRIM21, NP, TBK1, IRF3, p-TBK1, and p-IRF3 proteins were estimated by Western blot. The results showed that, after IAV infection, TRIM21 was upregulated in clinical patient serum and A549 cells, and this was correlated with the IFN response. Overexpression of TRIM21 reduced IAV replication and transcription in in vitro cell experiments. TRIM21 also increased IFN-α and IFN-β levels and decreased IL-6 and TNF-α levels in A549 cells. In addition, overexpression of TRIM21 inhibited IAV-induced apoptosis. Further experiments demonstrated that TBK1-IRF3 signaling was activated by TRIM21 and was involved in the inhibitory effect of TRIM21 on virus replication. In summary, our study suggests that TRIM21 inhibits viral replication by activating the TBK1-IRF3 signaling pathway, further inhibiting the infection process of IAV.
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Affiliation(s)
- Juan Yuan
- Outpatient of Infectious Diseases, Xi'an Children's Hospital, No 69, Xiju Yuan Lane, Lianhu District, Xi'an, 710003, Shaanxi, China
| | - Jianli Pan
- The Special Department, Xi'an Children's Hospital, Xi'an, 710003, Shaanxi, China
| | - Xiaofang Zhang
- Outpatient of Infectious Diseases, Xi'an Children's Hospital, No 69, Xiju Yuan Lane, Lianhu District, Xi'an, 710003, Shaanxi, China
| | - Rui Gao
- Outpatient of Infectious Diseases, Xi'an Children's Hospital, No 69, Xiju Yuan Lane, Lianhu District, Xi'an, 710003, Shaanxi, China.
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Zhao X, Wang C, Zhao L, Tian Z. HBV DNA polymerase regulates tumor cell glycogen to enhance the malignancy of HCC cells. Hepatol Commun 2024; 8:e0387. [PMID: 38358372 PMCID: PMC10871796 DOI: 10.1097/hc9.0000000000000387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/16/2023] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND The essential function of HBV DNA polymerase (HBV-DNA-Pol) is to initiate viral replication by reverse transcription; however, the role of HBV-DNA-Pol in HBV-associated HCC has not been clarified. Glycogen phosphorylase L (PYGL) is a critical regulator of glycogenolysis and is involved in tumorigenesis, including HCC. However, it is unknown whether HBV-DNA-Pol regulates PYGL to contribute to HCC tumorigenesis. METHODS Bioinformatic analysis, real-time quantitative PCR, western blotting, and oncology functional assays were performed to determine the contribution of HBV-DNA-Pol and PYGL to HCC development and glycolysis. The mechanisms of co-immunoprecipitation and ubiquitination were employed to ascertain how HBV-DNA-Pol upregulated PYGL. RESULTS Overexpression of HBV-DNA-Pol enhanced HCC progression in vitro and in vivo. Mechanistically, HBV-DNA-Pol interacted with PYGL and increased PYGL protein levels by inhibiting PYGL ubiquitination, which was mediated by the E3 ligase TRIM21. HBV-DNA-Pol competitively impaired the binding of PYGL to TRIM21 due to its stronger binding affinity to TRIM21, suppressing the ubiquitination of PYGL. Moreover, HBV-DNA-Pol promoted glycogen decomposition by upregulating PYGL, which led to an increased flow of glucose into glycolysis, thereby promoting HCC development. CONCLUSIONS Our study reveals a novel mechanism by which HBV-DNA-Pol promotes HCC by controlling glycogen metabolism in HCC, establishing a direct link between HBV-DNA-Pol and the Warburg effect, thereby providing novel targets for HCC treatment and drug development.
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Affiliation(s)
- Xiaoqing Zhao
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chunqing Wang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan, China
| | - Liqing Zhao
- Department of Pediatrics, Zaozhuang Municipal Hospital, Zaozhuang, China
| | - Zhongzheng Tian
- Shandong Agricultural Technology Extending Center, Jinan, China
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9
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Zhao X, Hu Y, Zhao J, Liu Y, Ma X, Chen H, Xing Y. Role of protein Post-translational modifications in enterovirus infection. Front Microbiol 2024; 15:1341599. [PMID: 38596371 PMCID: PMC11002909 DOI: 10.3389/fmicb.2024.1341599] [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: 11/20/2023] [Accepted: 01/18/2024] [Indexed: 04/11/2024] Open
Abstract
Enteroviruses (EVs) are the main cause of a number of neurological diseases. Growing evidence has revealed that successful infection with enteroviruses is highly dependent on the host machinery, therefore, host proteins play a pivotal role in viral infections. Both host and viral proteins can undergo post-translational modification (PTM) which can regulate protein activity, stability, solubility and interactions with other proteins; thereby influencing various biological processes, including cell metabolism, metabolic, signaling pathways, cell death, and cancer development. During viral infection, both host and viral proteins regulate the viral life cycle through various PTMs and different mechanisms, including the regulation of host cell entry, viral protein synthesis, genome replication, and the antiviral immune response. Therefore, protein PTMs play important roles in EV infections. Here, we review the role of various host- and virus-associated PTMs during enterovirus infection.
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Affiliation(s)
- Xiaohui Zhao
- Department of Pathogen Biology, School of Medicine, Qinghai University, Qinghai, China
| | - Yibo Hu
- Department of Orthopaedic Trauma, The Affiliated Hospital of Qinghai University, Qinghai, China
| | - Jun Zhao
- Department of Pathogen Biology, School of Medicine, Qinghai University, Qinghai, China
| | - Yan Liu
- Department of Immunology, School of Medicine, Qinghai, China
| | - Xueman Ma
- Department of Traditional Chinese Medicine, School of Medicine, Qinghai University, Qinghai, China
| | - Hongru Chen
- Department of Public Health, School of Medicine, Qinghai University, Qinghai, China
| | - Yonghua Xing
- Department of Genetics, School of Medicine, Qinghai University, Qinghai, China
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Huang Y, Gao X, He QY, Liu W. A Interacting Model: How TRIM21 Orchestrates with Proteins in Intracellular Immunity. SMALL METHODS 2024; 8:e2301142. [PMID: 37922533 DOI: 10.1002/smtd.202301142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/12/2023] [Indexed: 11/07/2023]
Abstract
Tripartite motif-containing protein 21 (TRIM21), identified as both a cytosolic E3 ubiquitin ligase and FcR (Fragment crystallizable receptor), primarily interacts with proteins via its PRY/SPRY domains and promotes their proteasomal degradation to regulate intracellular immunity. But how TRIM21 involves in intracellular immunity still lacks systematical understanding. Herein, it is probed into the TRIM21-related literature and raises an interacting model about how TRIM21 orchestrates proteins in cytosol. In this novel model, TRIM21 generally interacts with miscellaneous protein in intracellular immunity in two ways: For one, TRIM21 solely plays as an E3, ubiquitylating a glut of proteins that contain specific interferon-regulatory factor, nuclear transcription factor kappaB, virus sensors and others, and involving inflammatory responses. For another, TRIM21 serves as both E3 and specific FcR that detects antibody-complexes and facilitates antibody destroying target proteins. Correspondingly delineated as Fc-independent signaling and Fc-dependent signaling in this review, how TRIM21's interactions contribute to intracellular immunity, expecting to provide a systematical understanding of this important protein and invest enlightenment for further research on the pathogenesis of related diseases and its prospective application is elaborated.
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Affiliation(s)
- Yisha Huang
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Xuejuan Gao
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Qing-Yu He
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Wanting Liu
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
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11
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Ji L, Li T, Chen H, Yang Y, Lu E, Liu J, Qiao W, Chen H. The crucial regulatory role of type I interferon in inflammatory diseases. Cell Biosci 2023; 13:230. [PMID: 38124132 PMCID: PMC10734085 DOI: 10.1186/s13578-023-01188-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023] Open
Abstract
Type I interferon (IFN-I) plays crucial roles in the regulation of inflammation and it is associated with various inflammatory diseases including systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and periodontitis, impacting people's health and quality of life. It is well-established that IFN-Is affect immune responses and inflammatory factors by regulating some signaling. However, currently, there is no comprehensive overview of the crucial regulatory role of IFN-I in distinctive pathways as well as associated inflammatory diseases. This review aims to provide a narrative of the involvement of IFN-I in different signaling pathways, mainly mediating the related key factors with specific targets in the pathways and signaling cascades to influence the progression of inflammatory diseases. As such, we suggested that IFN-Is induce inflammatory regulation through the stimulation of certain factors in signaling pathways, which displays possible efficient treatment methods and provides a reference for the precise control of inflammatory diseases.
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Affiliation(s)
- Ling Ji
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Tianle Li
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Huimin Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Yanqi Yang
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
- Division of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Eryi Lu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, China
| | - Jieying Liu
- Department of Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Qiao
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
| | - Hui Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
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12
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Zhang Y, Zhou X, Chen S, Sun X, Zhou C. Immune mechanisms of group B coxsackievirus induced viral myocarditis. Virulence 2023; 14:2180951. [PMID: 36827455 PMCID: PMC9980623 DOI: 10.1080/21505594.2023.2180951] [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] [Indexed: 02/26/2023] Open
Abstract
Viral myocarditis is known to be a primary cause of dilated cardiomyopathy (DCM) that can lead to heart failure and sudden cardiac death and is invariably caused by myocardial viral infection following active inflammatory destruction of the myocardium. Although acute viral myocarditis frequently recovers on its own, current chronic myocarditis therapies are unsatisfactory, where the persistence of viral or immunological insults to the heart may play a role. Cellular and mouse experimental models that utilized the most prevalent Coxsackievirus group B type 3 (CVB3) virus infection causing myocarditis have illustrated the pathophysiology of viral myocarditis. In this review, immunological insights into the different stages of development of viral myocarditis were discussed, concentrating on the mechanisms of innate and adaptive immunity in the development of CVB3-induced myocarditis.
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Affiliation(s)
- Yue Zhang
- Clinical Medical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou, China,School of public health, Nantong University, Nantong, China
| | - Xiaobin Zhou
- Clinical Medical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou, China
| | - Shuyi Chen
- Clinical Medical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou, China
| | - Xinchen Sun
- Clinical Medical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou, China
| | - Chenglin Zhou
- Clinical Medical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou, China,CONTACT Chenglin Zhou Clinical Medical Laboratory Center, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou, China
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13
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Chen L, Zhu MY, Wang GX, Lu LL, Lin L, Lei L, Wu T. Ruxolitinib ameliorated coxsackievirus B3-induced acute viral myocarditis by suppressing the JAK-STAT pathway. Int Immunopharmacol 2023; 124:110797. [PMID: 37634445 DOI: 10.1016/j.intimp.2023.110797] [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: 02/10/2023] [Revised: 08/02/2023] [Accepted: 08/11/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Accumulating evidences have demonstrated that overwhelming inflammation occurs in the process of Coxsackievirus B3 (CVB3)-induced acute viral myocarditis (AVM). No specific therapy is available. More than an effective Janus-associated kinase (JAK) inhibiter, ruxolitinib exerts a critical role in the inflammatory diseases. In this study, we investigated the potential effect of ruxolitinib on CVB3-induced acute viral myocarditis. METHOD In vivo, BALB/c mice were intraperitoneally injected of CVB3, treated of a successive gavage of ruxolitinib for seven days, and subjected to a series of analysis. In vitro, primary bone marrow-derived macrophages (BMDMs) and cardiac fibroblasts were isolated, cultured, treated, harvested and finally detected. RESULTS In vivo, acute viral myocarditis was successfully induced by the injection of CVB3 characterized by impaired cardiac function, predominant infiltration of inflammatory cells, necroptosis of myocardium, great increase of cardiac troponin I (cTnI) and cytokine levels, replication of CVB3, and excessive activation of JAK-STAT pathways. Oral administration of ruxolitinib suppressed the activation of JAK-STAT pathway in a dosage-dependent way, lessened the infiltration of inflammatory cells and necroptosis of myocardium, reduced the levels of cTnI and cytokines, and finally alleviated CVB3-induced cardiac dysfunction, with the reduced production of type I interferon and no promising effect on the replication of CVB3. In vitro, the treatment of ruxolitinib inhibited the activation of JAK-STAT pathway and increase of multiple cytokines mRNA levels in BMDMs and had no protective effect against CVB3 replication in cardiac fibroblasts. CONCLUSIONS Our study suggested that ruxolitinib ameliorated CVB3-induced AVM by inhibiting the activation of JAK-STAT pathway, infiltration of inflammatory cells and necroptosis of myocardium, which may provide a novel strategy for AVM therapy.
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Affiliation(s)
- Liang Chen
- Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Meng-Ying Zhu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Gao-Xiang Wang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Avenue, Wuhan, Hubei 430030, China
| | - Li-Li Lu
- Institute of Pharmaceutical Innovation, College of Medicine, Wuhan University of Science and Technology, Wuhan 430065, Hubei, China
| | - Li Lin
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Lei Lei
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Ting Wu
- Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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14
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Peng Z, Zhang C, Yin B, He Y, Li W, Wang J, Xiao J, Peng K, Bao C, Zhu R. TRIM21 of Micropterus salmoides exerts antiviral roles against largemouth bass ulcer syndrome virus. FISH & SHELLFISH IMMUNOLOGY 2023; 142:109176. [PMID: 37858784 DOI: 10.1016/j.fsi.2023.109176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/02/2023] [Accepted: 10/17/2023] [Indexed: 10/21/2023]
Abstract
Tripartite motif 21 (TRIM21), a member of the TRIM family, plays an important role in apoptosis, autophagy and ubiquitination in human, and has been proven to play antiviral roles in different organisms. In this study, the TRIM21 gene of Micropterus salmoides (MsTRIM21) was cloned, and it encoded 376 amino acids, which showed 89.3% similarity with Micropterus dolomieu and 38.3% with homo sapiens. Bioinformatics analysis revealed MsTRIM21 contained four domains: C4HC3-type RING-variant (RINGv), coiled coil, PRY and SPRY. The high expression level of MsTRIM21 could be detected in liver, stomach and muscle of healthy Micropterus salmoides, and it was significantly upregulated in head kidney, muscle, gill and brain and significantly down-regulated in the stomach of Micropterus salmoides infected with largemouth bass ulcer syndrome virus (LBUSV). The overexpression of MsTRIM21 could significantly inhibit the viral replication in vitro, evidenced by the reduction of CPE severity and the downregulation of the viral gene transcription. In addition, the overexpression of MsTRIM21 could significantly increase the expression level of interferon regulatory factor (IRF) 3, IRF7, myxovirus resistance 1 (Mx1), interferon stimulated gene 15 (ISG15), double-stranded RNA-activated protein kinase (PKR) and tumor necrosis factor α (TNF-α) in vitro, indicating the enhancement of innate immune response and inflammatory response, which may directly affect the replication of LBUSV. Thus, these results provide new lights on the roles of fish TRIM21 in innate immune response against iridovirus.
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Affiliation(s)
- Zichao Peng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Caiyun Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Baojie Yin
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Yange He
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Wenxian Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Jinchao Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Jiaxin Xiao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Kaisong Peng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Chuanhe Bao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
| | - Ruolin Zhu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China.
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15
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Sun H, Wu M, Zhang Z, Wang Y, Yang J, Liu Z, Guan G, Luo J, Yin H, Niu Q. OAS1 suppresses African swine fever virus replication by recruiting TRIM21 to degrade viral major capsid protein. J Virol 2023; 97:e0121723. [PMID: 37815352 PMCID: PMC10617512 DOI: 10.1128/jvi.01217-23] [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: 08/11/2023] [Accepted: 08/28/2023] [Indexed: 10/11/2023] Open
Abstract
IMPORTANCE African swine fever virus (ASFV) completes the replication process by resisting host antiviral response via inhibiting interferon (IFN) secretion and interferon-stimulated genes (ISGs) function. 2', 5'-Oligoadenylate synthetase gene 1 (OAS1) has been reported to inhibit the replication of various RNA and some DNA viruses. However, the regulatory mechanisms involved in the ASFV-induced IFN-related pathway still need to be fully elucidated. Here, we found that OAS1, as a critical host factor, inhibits ASFV replication in an RNaseL-dependent manner. Furthermore, overexpression of OAS1 can promote the activation of the JAK-STAT pathway promoting innate immune responses. In addition, OAS1 plays a new function, which could interact with ASFV P72 protein to suppress ASFV infection. Mechanistically, OAS1 enhances the proteasomal degradation of P72 by promoting TRIM21-mediated ubiquitination. Meanwhile, P72 inhibits the production of avSG and affects the interaction between OAS1 and DDX6. Our findings demonstrated OAS1 as an important target against ASFV replication and revealed the mechanisms and intrinsic regulatory relationships during ASFV infection.
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Affiliation(s)
- Hualin Sun
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Mengli Wu
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Zhonghui Zhang
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yiwang Wang
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Jifei Yang
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Zhijie Liu
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Guiquan Guan
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Jianxun Luo
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Hong Yin
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, China
| | - Qingli Niu
- African Swine Fever Regional Laboratory, China (Lanzhou); State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
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16
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Huang J, Chen Z, Ye Y, Shao Y, Zhu P, Li X, Ma Y, Xu F, Zhou J, Wu M, Gao X, Yang Y, Zhang J, Hao C. DTX3L Enhances Type I Interferon Antiviral Response by Promoting the Ubiquitination and Phosphorylation of TBK1. J Virol 2023; 97:e0068723. [PMID: 37255478 PMCID: PMC10308958 DOI: 10.1128/jvi.00687-23] [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: 05/07/2023] [Accepted: 05/11/2023] [Indexed: 06/01/2023] Open
Abstract
Studies already revealed that some E3 ubiquitin ligases participated in the immune response after viral infection by regulating the type I interferon (IFN) pathway. Here, we demonstrated that type I interferon signaling enhanced the translocation of ETS1 to the nucleus and the promoter activity of E3 ubiquitin ligase DTX3L (deltex E3 ubiquitin ligase 3L) after virus infection and thus increased the expression of DTX3L. Further experiments suggested that DTX3L ubiquitinated TBK1 at K30 and K401 sites on K63-linked ubiquitination pathway. DTX3L was also necessary for mediating the phosphorylation of TBK1 through binding with the tyrosine kinase SRC: both together enhanced the activation of TBK1. Therefore, DTX3L, being an important positive-feedback regulator of type I interferon, exerted a key role in antiviral response. IMPORTANCE Our present study evaluated DTX3L as an antiviral molecule by promoting IFN production and establishing an IFN-β-ETS1-DTX3L-TBK1 positive-feedback loop as a novel immunomodulatory step to enhance interferon signaling and inhibit respiratory syncytial virus (RSV) infection. Our finding enriches and complements the biological function of DTX3L and provides a new strategy to protect against lung diseases such as bronchiolitis and pneumonia that develop with RSV.
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Affiliation(s)
- Jiaqi Huang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Zhengrong Chen
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Yunfei Ye
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Yu Shao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Peijie Zhu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Xiaoping Li
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
- Reproductive Medicine Center, the First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Yu Ma
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
| | - Fei Xu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Ji Zhou
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Mengyun Wu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Xiu Gao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Yi Yang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Jinping Zhang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, People's Republic of China
| | - Chuangli Hao
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, People's Republic of China
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17
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Liu X, Zhang W, Luo J, Shi W, Zhang X, Li Z, Qin X, Liu B, Wei Y. TRIM21 deficiency protects against atrial inflammation and remodeling post myocardial infarction by attenuating oxidative stress. Redox Biol 2023; 62:102679. [PMID: 36996623 PMCID: PMC10074251 DOI: 10.1016/j.redox.2023.102679] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/05/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
Atrial remodeling is a major contributor to the onset of atrial fibrillation (AF) after myocardial infarction (MI). Tripartite motif-containing protein 21 (TRIM21), an E3 ubiquitin protein ligase, is associated with pathological cardiac remodeling and dysfunction. However, the role of TRIM21 in postmyocardial infarction atrial remodeling and subsequent AF remains unclear. This study investigated the role of TRIM21 in post myocardial infarction atrial remodeling using TRIM21 knockout mice and explored the underlying mechanisms by overexpressing TRIM21 in HL-1 atrial myocytes using a lentiviral vector. The expression of TRIM21 in the left atrium of the mouse MI model was significantly elevated. TRIM21 deficiency alleviated MI-induced atrial oxidative damage, Cx43 downregulation, atrial fibrosis and enlargement, and abnormalities in electrocardiogram parameters (prolongation of the P-wave and PR interval). TRIM21 overexpression in atrial myocyte HL-1 cells further enhanced oxidative damage and Cx43 downregulation, whereas these effects were reversed by the reactive oxygen species scavenger N-acetylcysteine. The findings suggest that TRIM21 likely induces Nox2 expression mechanistically by activating the NF-κB pathway, which in turn leads to myocardial oxidative damage, inflammation, and atrial remodeling.
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18
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Wang J, Zhang X, Yang X, Yu H, Bu M, Fu J, Zhang Z, Xu H, Hu J, Lu J, Zhang H, Zhai Z, Yang W, Wu X, Wang Y, Tong Q. Revitalizing myocarditis treatment through gut microbiota modulation: unveiling a promising therapeutic avenue. Front Cell Infect Microbiol 2023; 13:1191936. [PMID: 37260696 PMCID: PMC10229058 DOI: 10.3389/fcimb.2023.1191936] [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: 03/22/2023] [Accepted: 04/24/2023] [Indexed: 06/02/2023] Open
Abstract
Numerous studies have demonstrated that gut microbiota plays an important role in the development and treatment of different cardiovascular diseases, including hypertension, heart failure, myocardial infarction, arrhythmia, and atherosclerosis. Furthermore, evidence from recent studies has shown that gut microbiota contributes to the development of myocarditis. Myocarditis is an inflammatory disease that often results in myocardial damage. Myocarditis is a common cause of sudden cardiac death in young adults. The incidence of myocarditis and its associated dilated cardiomyopathy has been increasing yearly. Myocarditis has gained significant attention on social media due to its association with both COVID-19 and COVID-19 vaccinations. However, the current therapeutic options for myocarditis are limited. In addition, little is known about the potential therapeutic targets of myocarditis. In this study, we review (1) the evidence on the gut-heart axis, (2) the crosslink between gut microbiota and the immune system, (3) the association between myocarditis and the immune system, (4) the impact of gut microbiota and its metabolites on myocarditis, (5) current strategies for modulating gut microbiota, (6) challenges and future directions for targeted gut microbiota in the treatment of myocarditis. The approach of targeting the gut microbiota in myocarditis is still in its infancy, and this is the study to explore the gut microbiota-immune system-myocarditis axis. Our findings are expected to pave the way for the use of gut microbiota as a potential therapeutic target in the treatment of myocarditis.
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Affiliation(s)
- Jingyue Wang
- Department of Cardiovascular Medicine, The First Hospital of Jilin University, Changchun, China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Xianfeng Zhang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Xinyu Yang
- Department of Cardiovascular Medicine, The First Hospital of Jilin University, Changchun, China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Hang Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Mengmeng Bu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Jie Fu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Zhengwei Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Hui Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Jiachun Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Jinyue Lu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Haojian Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Zhao Zhai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Wei Yang
- Department of Cardiovascular Medicine, The First Hospital of Jilin University, Changchun, China
| | - Xiaodan Wu
- Department of Cardiovascular Medicine, The First Hospital of Jilin University, Changchun, China
| | - Yan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Qian Tong
- Department of Cardiovascular Medicine, The First Hospital of Jilin University, Changchun, China
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19
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Chen YY, Ran XH, Ni RZ, Mu D. TRIM28 negatively regulates the RLR signaling pathway by targeting MAVS for degradation via K48-linked polyubiquitination. J Biol Chem 2023; 299:104660. [PMID: 37119745 PMCID: PMC10165269 DOI: 10.1016/j.jbc.2023.104660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/14/2023] [Accepted: 03/18/2023] [Indexed: 05/01/2023] Open
Abstract
Mitochondrial antiviral signaling (MAVS) protein is a core signaling adapter in the retinoid acid-inducible gene-I-like receptor (RLR) signaling pathway that recruits downstream signaling factors, ultimately leading to the activation of type Ⅰ interferons. However, the mechanisms that modulate the RLR signaling pathway by manipulating MAVS are not fully understood. Previous studies suggested that tripartite motif 28 (TRIM28) participates in regulating innate immune signaling pathways by inhibiting the expression of immune-related genes at the transcriptional level. In this study, we characterized TRIM28 as a negative regulator of the RLR signaling pathway in a MAVS-dependent manner. Overexpression of TRIM28 inhibited the MAVS-induced production of type Ⅰ interferons and proinflammatory cytokines, while knocking down TRIM28 exerted the opposite effect. Mechanistically, TRIM28 targeted MAVS for proteasome-mediated degradation via K48-linked polyubiquitination. The RING domain of TRIM28, especially the cysteine residues at positions 65 and 68, was critical for the suppressive effect of TRIM28 on MAVS-mediated RLR signaling, while each of the C-terminal domains of TRIM28 contributed to its interaction with MAVS. Further investigation revealed that TRIM28 transferred ubiquitin chains to the K7, K10, K371, K420, and K500 residues of MAVS. Together, our results reveal a previously uncharacterized mechanism involving TRIM28 in fine-tuning innate immune responses and provide new insights into the mechanisms by which MAVS is regulated, which contribute to the understanding of the molecular mechanisms underlying immune homeostasis maintenance.
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Affiliation(s)
- Ya-Yun Chen
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Xiang-Hong Ran
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Run-Ze Ni
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Dan Mu
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China.
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20
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Jiang W, Li X, Xu H, Gu X, Li S, Zhu L, Lu J, Duan X, Li W, Fang M. UBL7 enhances antiviral innate immunity by promoting Lys27-linked polyubiquitination of MAVS. Cell Rep 2023; 42:112272. [PMID: 36943869 DOI: 10.1016/j.celrep.2023.112272] [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: 10/08/2022] [Revised: 01/20/2023] [Accepted: 03/02/2023] [Indexed: 03/22/2023] Open
Abstract
RNA virus infection usually triggers a range of host immune responses, including the induction of proinflammatory cytokines, interferons, and interferon-stimulated genes (ISGs). Here, we report that UBL7, a ubiquitin-like protein, is upregulated during RNA virus infection and induced by type I interferon as an ISG. UBL7-deficient mice exhibit increased susceptibility to viral infection due to attenuated antiviral innate immunity. UBL7 enhances innate immune response to viral infection by promoting the K27-linked polyubiquitination of MAVS. UBL7 interacts with TRIM21, an E3 ubiquitin ligase of MAVS, and promotes the combination of TRIM21 with MAVS in a dose-dependent manner, facilitating the K27-linked polyubiquitination of MAVS and recruiting of TBK1 to enhance the IFN signaling pathway. Moreover, UBL7 has a broad-spectrum antiviral function as an immunomodulatory adaptor protein. Therefore, UBL7 positively regulates innate antiviral signaling and promotes positive feedback to enhance and amplify the antiviral response.
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Affiliation(s)
- Wei Jiang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xinyu Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Henan Xu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiuling Gu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shan Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Li Zhu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jiao Lu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xuefeng Duan
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wei Li
- Institute of Reproductive Health and Perinatology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Min Fang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; International College, University of Chinese Academy of Sciences, Beijing 100049, China.
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21
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Multiple Roles of TRIM21 in Virus Infection. Int J Mol Sci 2023; 24:ijms24021683. [PMID: 36675197 PMCID: PMC9867090 DOI: 10.3390/ijms24021683] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
The tripartite motif protein 21 (TRIM21) belongs to the TRIM family, possessing an E3 ubiquitin ligase activity. Similar to other TRIMs, TRIM21 also contains three domains (named RBCC), including the Really Interesting New Gene (RING) domain, one or two B-Box domains (B-Box), and one PRY/SPRY domain. Notably, we found that the RING and B-Box domains are relatively more conservative than the PRY/SPRY domain, suggesting that TRIM21 of different species had similar functions. Recent results showed that TRIM21 participates in virus infection by directly interacting with viral proteins or modulating immune and inflammatory responses. TRIM21 also acts as a cytosol high-affinity antibody Fc receptor, binding to the antibody-virus complex and triggering an indirect antiviral antibody-dependent intracellular neutralization (ADIN). This paper focuses on the recent progress in the mechanism of TRIM21 during virus infection and the application prospects of TRIM21 on virus infection.
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22
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Fu Z, Chen S, Zhu Y, Zhang D, Xie P, Jiao Q, Chi J, Xu S, Xue Y, Lu X, Song X, Cristofanilli M, Gradishar WJ, Kalinsky K, Yin Y, Zhang B, Wan Y. Proteolytic regulation of CD73 by TRIM21 orchestrates tumor immunogenicity. SCIENCE ADVANCES 2023; 9:eadd6626. [PMID: 36608132 PMCID: PMC9821867 DOI: 10.1126/sciadv.add6626] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 12/06/2022] [Indexed: 05/24/2023]
Abstract
Despite the rapid utilization of immunotherapy, emerging challenges to the current immune checkpoint blockade need to be resolved. Here, we report that elevation of CD73 levels due to its aberrant turnover is correlated with poor prognosis in immune-cold triple-negative breast cancers (TNBCs). We have identified TRIM21 as an E3 ligase that governs CD73 destruction. Disruption of TRIM21 stabilizes CD73 that in turn enhances CD73-catalyzed production of adenosine, resulting in the suppression of CD8+ T cell function. Replacement of lysine 133, 208, 262, and 321 residues by arginine on CD73 attenuated CD73 ubiquitylation and degradation. Diminishing of CD73 ubiquitylation remarkably promotes tumor growth and impedes antitumor immunity. In addition, a TRIM21high/CD73low signature in a subgroup of human breast malignancies was associated with a favorable immune profile. Collectively, our findings uncover a mechanism that governs CD73 proteolysis and point to a new therapeutic strategy by modulating CD73 ubiquitylation.
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Affiliation(s)
- Ziyi Fu
- Department of Obstetrics and Gynecology, Department of Pharmacology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Siqi Chen
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yueming Zhu
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, USA
| | - Donghong Zhang
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
| | - Ping Xie
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Qiao Jiao
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
| | - Junlong Chi
- Department of Obstetrics and Gynecology, Department of Pharmacology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Shipeng Xu
- Department of Obstetrics and Gynecology, Department of Pharmacology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yifan Xue
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xinghua Lu
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xinxin Song
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | | | - William J. Gradishar
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Kevin Kalinsky
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Yongmei Yin
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Bin Zhang
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yong Wan
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
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23
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Li Z, Liu X, Zhang X, Zhang W, Gong M, Qin X, Luo J, Fang Y, Liu B, Wei Y. TRIM21 aggravates cardiac injury after myocardial infarction by promoting M1 macrophage polarization. Front Immunol 2022; 13:1053171. [PMID: 36439111 PMCID: PMC9684192 DOI: 10.3389/fimmu.2022.1053171] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 10/25/2022] [Indexed: 08/27/2024] Open
Abstract
Macrophage polarization followed by myocardial infarction (MI) is essential for wound healing. Tripartite motif-containing protein 21 (TRIM21), a member of E3 ubiquitin ligases, is emerging as a mediator in cardiac injury and heart failure. However, its function in modulating post-MI macrophage polarization remains elusive. Here, we detected that the levels of TRIM21 significantly increased in macrophages of wild-type (WT) mice after MI. In contrast, MI was ameliorated in TRIM21 knockout (TRIM21-/-) mice with improved cardiac remodeling, characterized by a marked decrease in mortality, decreased infarct size, and improved cardiac function compared with WT-MI mice. Notably, TRIM21 deficiency impeded the post-MI apoptosis and DNA damage in the hearts of mice. Consistently, the accumulation of M1 phenotype macrophages in the infarcted tissues was significantly reduced with TRIM21 deletion. Mechanistically, the deletion of TRIM21 orchestrated the process of M1 macrophage polarization at least partly via a PI3K/Akt signaling pathway. Overall, we identify TRIM21 drives the inflammatory response and cardiac remodeling by stimulating M1 macrophage polarization through a PI3K/Akt signaling pathway post-MI.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Baoxin Liu
- Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yidong Wei
- Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
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24
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Zheng J, Zhi L, Wang W, Ni N, Huang Y, Qin Q, Huang X. Fish TRIM21 exhibits antiviral activity against grouper iridovirus and nodavirus infection. FISH & SHELLFISH IMMUNOLOGY 2022; 127:956-964. [PMID: 35764286 DOI: 10.1016/j.fsi.2022.06.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/01/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Growing evidences have demonstrated that multiple TRIM (tripartite motif) proteins exert critical roles in host defense against different microbial pathogens. Although mammalian TRIM21 has been reported to function as an important regulatory factor in antiviral immune and inflammatory response, the role of fish TRIM21 against virus infection still remains largely unknown. In the present study, we investigated the characteristics of TRIM21 gene (EcTRIM21) from orange spotted grouper (Epinephelus coioides). The full-length EcTRIM21 cDNA encoded a 557 amino acid peptide with 92.1% and 31.14% identity with giant grouper (Epinephelus lanceolatus) and human (Homo sapiens), respectively. EcTRIM21 contained four conserved domains, including RING, B-Box, PRY and SPRY domain. EcTRIM21 expression was significantly up-regulated in response to Singapore grouper iridovirus (SGIV) and red-spotted grouper nervous necrosis virus (RGNNV) infection, suggesting that EcTRIM21 might be involved in host defense against fish virus infections. Subcellular localization showed that EcTRIM21 were distributed in the cytoplasm in a punctate manner. Overexpression of EcTRIM21 in vitro significantly inhibited RGNNV and SGIV replication, as evidenced by the decreased severity of cytopathic effect (CPE) and the reduced expression levels of viral core genes. Consistently, knockdown of EcTRIM21 by small interfering RNA (siRNA) promoted the replication of RGNNV and SGIV in vitro. Furthermore, EcTRIM21 overexpression increased both interferon (IFN) and interferon stimulated response element (ISRE) promoter activities. In addition, the transcription levels of IFN signaling related molecules were positively regulated by EcTRIM21 overexpression. Together, our data demonstrated that fish TRIM21 exerted antiviral activity against fish viruses through positive regulation of host interferon response.
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Affiliation(s)
- Jiaying Zheng
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Linyong Zhi
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Wenji Wang
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Na Ni
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Youhua Huang
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China; University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, Guangzhou, China
| | - Xiaohong Huang
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China; University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, Guangzhou, China.
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25
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Fang M, Zhang A, Du Y, Lu W, Wang J, Minze LJ, Cox TC, Li XC, Xing J, Zhang Z. TRIM18 is a critical regulator of viral myocarditis and organ inflammation. J Biomed Sci 2022; 29:55. [PMID: 35909127 PMCID: PMC9339186 DOI: 10.1186/s12929-022-00840-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/19/2022] [Indexed: 12/15/2022] Open
Abstract
Background Infections by viruses including severe acute respiratory syndrome coronavirus 2 could cause organ inflammations such as myocarditis, pneumonia and encephalitis. Innate immunity to viral nucleic acids mediates antiviral immunity as well as inflammatory organ injury. However, the innate immune mechanisms that control viral induced organ inflammations are unclear. Methods To understand the role of the E3 ligase TRIM18 in controlling viral myocarditis and organ inflammation, wild-type and Trim18 knockout mice were infected with coxsackievirus B3 for inducing viral myocarditis, influenza A virus PR8 strain and human adenovirus for inducing viral pneumonia, and herpes simplex virus type I for inducing herpes simplex encephalitis. Mice survivals were monitored, and heart, lung and brain were harvested for histology and immunohistochemistry analysis. Real-time PCR, co-immunoprecipitation, immunoblot, enzyme-linked immunosorbent assay, luciferase assay, flow cytometry, over-expression and knockdown techniques were used to understand the molecular mechanisms of TRIM18 in regulating type I interferon (IFN) production after virus infection in this study. Results We find that knockdown or deletion of TRIM18 in human or mouse macrophages enhances production of type I IFN in response to double strand (ds) RNA and dsDNA or RNA and DNA virus infection. Importantly, deletion of TRIM18 protects mice from viral myocarditis, viral pneumonia, and herpes simplex encephalitis due to enhanced type I IFN production in vivo. Mechanistically, we show that TRIM18 recruits protein phosphatase 1A (PPM1A) to dephosphorylate TANK binding kinase 1 (TBK1), which inactivates TBK1 to block TBK1 from interacting with its upstream adaptors, mitochondrial antiviral signaling (MAVS) and stimulator of interferon genes (STING), thereby dampening antiviral signaling during viral infections. Moreover, TRIM18 stabilizes PPM1A by inducing K63-linked ubiquitination of PPM1A. Conclusions Our results indicate that TRIM18 serves as a negative regulator of viral myocarditis, lung inflammation and brain damage by downregulating innate immune activation induced by both RNA and DNA viruses. Our data reveal that TRIM18 is a critical regulator of innate immunity in viral induced diseases, thereby identifying a potential therapeutic target for treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s12929-022-00840-z.
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Affiliation(s)
- Mingli Fang
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA.,Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Ao Zhang
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA.,Department of Laboratory Medicine, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
| | - Yong Du
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA
| | - Wenting Lu
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA
| | - Junying Wang
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA
| | - Laurie J Minze
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA
| | - Timothy C Cox
- Department of Oral & Craniofacial Sciences, School of Dentistry & Department of Pediatrics, School of Medicine, University of Missouri-Kansas City, Kansas City, MO, 64108, USA
| | - Xian Chang Li
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA.,Department of Surgery, Weill Cornell Medical College, Cornell University, New York, NY, 10065, USA
| | - Junji Xing
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA.
| | - Zhiqiang Zhang
- Department of Surgery and Immunobiology and Transplant Science Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, 77030, USA. .,Department of Surgery, Weill Cornell Medical College, Cornell University, New York, NY, 10065, USA.
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26
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Xu X, Wang L, Liu Y, Shi X, Yan Y, Zhang S, Zhang Q. TRIM56 overexpression restricts porcine epidemic diarrhoea virus replication in Marc-145 cells by enhancing TLR3-TRAF3-mediated IFN-β antiviral response. J Gen Virol 2022; 103. [PMID: 35503719 DOI: 10.1099/jgv.0.001748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Infection with the porcine epidemic diarrhoea virus (PEDV) causes severe enteric disease in suckling piglets, causing massive economic losses in the swine industry worldwide. Tripartite motif-containing 56 (TRIM56) has been shown to augment type I IFN response, but whether it affects PEDV replication remains uncharacterized. Here we investigated the role of TRIM56 in Marc-145 cells during PEDV infection. We found that TRIM56 expression was upregulated in cells infected with PEDV. Overexpression of TRIM56 effectively reduced PEDV replication, while knockdown of TRIM56 resulted in increased viral replication. TRIM56 overexpression significantly increased the phosphorylation of IRF3 and NF-κB P65, and enhanced the IFN-β antiviral response, while silencing TRIM56 did not affect IRF3 activation. TRIM56 overexpression increased the protein level of TRAF3, the component of the TLR3 pathway, thereby significantly activating downstream IRF3 and NF-κB signalling. We demonstrated that TRIM56 overexpression inhibited PEDV replication and upregulated expression of IFN-β, IFN-stimulated genes (ISGs) and chemokines in a dose-dependent manner. Moreover, truncations of the RING domain, N-terminal domain or C-terminal portion on TRIM56 were unable to induce IFN-β expression and failed to restrict PEDV replication. Together, our results suggested that TRIM56 was upregulated in Marc-145 cells in response to PEDV infection. Overexpression of TRIM56 inhibited PEDV replication by positively regulating the TLR3-mediated antiviral signalling pathway. These findings provide evidence that TRIM56 plays a positive role in the innate immune response during PEDV infection.
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Affiliation(s)
- Xingang Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Lixiang Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Yi Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Xiaojie Shi
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Yuchao Yan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Shuxia Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Qi Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, PR China
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27
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Han W, Chen Q, Cui J, Zhao Y, Li M, Li X. E3 ubiquitin ligase RNF114 promotes vesicular stomatitis virus replication via inhibiting type I interferon production. Microb Pathog 2022; 167:105569. [DOI: 10.1016/j.micpath.2022.105569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/12/2022] [Accepted: 05/05/2022] [Indexed: 10/18/2022]
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28
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Sun R, Guo Y, Li X, Li R, Shi J, Tan Z, Zhang L, Zhang L, Han J, Huang J. PRRSV Non-Structural Proteins Orchestrate Porcine E3 Ubiquitin Ligase RNF122 to Promote PRRSV Proliferation. Viruses 2022; 14:v14020424. [PMID: 35216017 PMCID: PMC8874583 DOI: 10.3390/v14020424] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 02/09/2022] [Accepted: 02/15/2022] [Indexed: 02/04/2023] Open
Abstract
Ubiquitination plays a major role in immune regulation after viral infection. An alternatively spliced porcine E3 ubiquitin ligase RNF122 promoted PRRSV infection and upregulated in PRRSV-infected PAM cells was identified. We characterized the core promoter of RNF122, located between −550 to −470 bp upstream of the transcription start site (TSS), which displayed significant differential transcriptional activities in regulating the transcription and expression of RNF122. The transcription factor HLTF was inhibited by nsp1α and nsp7 of PRRSV, and the transcription factor E2F complex regulated by nsp9. Together, they modulated the transcription and expression of RNF122. RNF122 could mediate K63-linked ubiquitination to raise stability of PRRSV nsp4 protein and thus promote virus replication. Moreover, RNF122 also performed K27-linked and K48-linked ubiquitination of MDA5 to degrade MDA5 and inhibit IFN production, ultimately promoted virus proliferation. In this study, we illustrate a new immune escape mechanism of PRRSV that enhances self-stability and function of viral nsp4, thus, regulating RNF122 expression to antagonize IFNα/β production. The present study broadens our knowledge of PRRSV-coding protein modulating transcription, expression and modification of host protein to counteract innate immune signaling, and may provide novel insights for the development of antiviral drugs.
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Affiliation(s)
- Ruiqi Sun
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Yanyu Guo
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Xiaoyang Li
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Ruiqiao Li
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Jingxuan Shi
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Zheng Tan
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Lilin Zhang
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Lei Zhang
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
| | - Jun Han
- College of Veterinary Medicine, China Agricultural University, Beijing 100083, China
- Correspondence: (J.H.); (J.H.)
| | - Jinhai Huang
- School of Life Sciences, Tianjin University, Tianjin 300072, China; (R.S.); (Y.G.); (X.L.); (R.L.); (J.S.); (Z.T.); (L.Z.); (L.Z.)
- Correspondence: (J.H.); (J.H.)
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Wang Y, Cui S, Xin T, Wang X, Yu H, Chen S, Jiang Y, Gao X, Jiang Y, Guo X, Jia H, Zhu H. African Swine Fever Virus MGF360-14L Negatively Regulates Type I Interferon Signaling by Targeting IRF3. Front Cell Infect Microbiol 2022; 11:818969. [PMID: 35096660 PMCID: PMC8790226 DOI: 10.3389/fcimb.2021.818969] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 12/22/2021] [Indexed: 12/16/2022] Open
Abstract
African swine fever (ASF) is a devastating infectious disease caused by African swine fever virus (ASFV). The ASFV genome encodes multiple structural and non-structural proteins that contribute to evasion of host immunity. In this study, we determined that the viral non-structural protein MGF360-14L inhibits interferon-β (IFN-β) promoter activity induced by cGAS-STING signaling. MGF360-14L was also found to downregulate expression of the IRF3 protein and promote its degradation through ubiquitin-meditated proteolysis. Moreover, MGF360-14L was shown to interact with and destabilize IRF3 by facilitating E3 ligase TRIM21-mediated K63-linked ubiquitination of IRF3. Overall, our study revealed that MGF360-14L promotes degradation of IRF3 through TRIM21, thereby inhibiting type I interferon production. These findings provide new insights into the mechanisms underlying ASFV immune evasion.
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Affiliation(s)
- Yang Wang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shuai Cui
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ting Xin
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xixi Wang
- Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Hainan Yu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shiyu Chen
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yajun Jiang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xintao Gao
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Yitong Jiang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoyu Guo
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hong Jia
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hongfei Zhu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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30
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Li C, Zhou Y, Chen X, Zhang Y, Hu J, Ren C, Ding J, Jiang D, Li Y. Porcine TRIM35 positively regulate TRAF3-mediated IFN-β production and inhibit Japanese encephalitis virus replication. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 127:104290. [PMID: 34626690 DOI: 10.1016/j.dci.2021.104290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
Tripartite motif 35 (TRIM35) protein is a ubiquitin E3 ligase that mediates interferon-beta (IFN-β) production via regulating ubiquitination of multiple adaptor proteins in innate immune signaling pathways. Here, we cloned the porcine TRIM35 (porTRIM35) gene and analyzed its involvement in IFN-β expression as well as the antiviral response against Japanese encephalitis virus (JEV). The full-length porTRIM35 gene encoded a 493-amino acid protein and exhibited 79.6%-89.5% sequence similarity with its orthologues in humans, mice, monkeys and rabbits. porTRIM35 possessed typical structural features of TRIMs, including a RING domain, a B-box domain, a coiled-coil domain and a PRY/SPYR domain. Exogenous overexpression of porTRIM35 significantly up-regulated the mRNA expression level of IFN-β in swine testicular (ST) cell in response to poly(I:C) stimulation, whereas knockdown endogenous expression of porTRIM35 lead to a decrease in the expression level of IFN-β. Mechanically, porTRIM35 directly interacted with porcine TNF-receptor associated factor 3 (TRAF3) and catalyzed its Lys63-linked polyubiquitination, thereby leading to the up-regulation of IFN-β production. Meanwhile, we demonstrated that the RING and PRY/SPRY domains were essential for the E3 ligase activity of porTRIM35. In response to JEV infection, the endogenous expression of porTRIM35 was markedly inhibited at the mRNA level, while exogenous expression of porTRIM35 significantly elevated the expression of IFN-β induced by JEV infection and reduced viral titers in ST cells, suggesting that porTRIM35 is a negative regulator for JEV replication. These data demonstrate the importance of porTRIM35 in IFN-β expression as well as the antiviral response against JEV replication.
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Affiliation(s)
- Chenxi Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China; State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of the Chinese Academy of Agricultural Sciences, Harbin, 150069, China
| | - Yanyang Zhou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Xuan Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yanbing Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, 832003, China
| | - Jingbo Hu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Cicheng Ren
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Jingjing Ding
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Daoyuan Jiang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
| | - Yanhua Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Comparative Medicine Research Institute, Yangzhou University, Yangzhou, 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China.
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31
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Yang L, Liu X, Zhang L, Li X, Zhang X, Niu G, Ji W, Chen S, Ouyang H, Ren L. Porcine TRIM21 Enhances Porcine Circovirus 2 Infection and Host Immune Responses, But Inhibits Apoptosis of PCV2-Infected Cells. Viruses 2022; 14:v14010156. [PMID: 35062360 PMCID: PMC8780438 DOI: 10.3390/v14010156] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/10/2022] [Accepted: 01/14/2022] [Indexed: 12/27/2022] Open
Abstract
Tripartite motif protein 21 (TRIM21) is an interferon-inducible E3 ligase, containing one RING finger domain, one B-box motif, one coiled-coil domain at the N-terminal, as well as one PRY domain and one SPRY domain at the C-terminal. TRIM21 is expressed in many tissues and plays an important role in systemic autoimmunity. However, TRIM21 plays different roles in different virus infections. In this study, we evaluate the relationship between porcine TRIM21 and PCV2 infection as well as host immune responses. We found that PCV2 infection modulated the expression of porcine TRIM21. TRIM21 can enhance interferons and proinflammatory factors and decrease cellular apoptosis in PCV2-infected cells. These results indicate that porcine TRIM21 plays a critical role in enhancing PCV2 infection, which is a promising target for controlling and developing the treatment of PCV2 infection.
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32
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Huang Y, Xiao Y, Zhang X, Huang X, Li Y. The Emerging Roles of Tripartite Motif Proteins (TRIMs) in Acute Lung Injury. J Immunol Res 2021; 2021:1007126. [PMID: 34712740 PMCID: PMC8548118 DOI: 10.1155/2021/1007126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/09/2021] [Indexed: 11/21/2022] Open
Abstract
Acute lung injury (ALI) is an inflammatory disorder of the lung that causes high mortality and lacks any pharmacological intervention. Ubiquitination plays a critical role in the pathogenesis of ALI as it regulates the alveolocapillary barrier and the inflammatory response. Tripartite motif (TRIM) proteins are one of the subfamilies of the RING-type E3 ubiquitin ligases, which contains more than 80 distinct members in humans involved in a broad range of biological processes including antivirus innate immunity, development, and tumorigenesis. Recently, some studies have shown that several members of TRIM family proteins play important regulatory roles in inflammation and ALI. Herein, we integrate emerging evidence regarding the roles of TRIMs in ALI. Articles were selected from the searches of PubMed database that had the terms "acute lung injury," "ubiquitin ligases," "tripartite motif protein," "inflammation," and "ubiquitination" using both MeSH terms and keywords. Better understanding of these mechanisms may ultimately lead to novel therapeutic approaches by targeting TRIMs for ALI treatment.
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Affiliation(s)
- Yingjie Huang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yue Xiao
- The First Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Xuekang Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xuan Huang
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Yong Li
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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33
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Jones EL, Laidlaw SM, Dustin LB. TRIM21/Ro52 - Roles in Innate Immunity and Autoimmune Disease. Front Immunol 2021; 12:738473. [PMID: 34552597 PMCID: PMC8450407 DOI: 10.3389/fimmu.2021.738473] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/16/2021] [Indexed: 12/19/2022] Open
Abstract
TRIM21 (Ro52/SSA1) is an E3 ubiquitin ligase with key roles in immune host defence, signal transduction, and possibly cell cycle regulation. It is also an autoantibody target in Sjögren's syndrome, systemic lupus erythematosus, and other rheumatic autoimmune diseases. Here, we summarise the structure and function of this enzyme, its roles in innate immunity, adaptive immunity and cellular homeostasis, the pathogenesis of autoimmunity against TRIM21, and the potential impacts of autoantibodies to this intracellular protein.
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Affiliation(s)
- Esther L Jones
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Stephen M Laidlaw
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Lynn B Dustin
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
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34
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Song Y, Li M, Wang Y, Zhang H, Wei L, Xu W. E3 ubiquitin ligase TRIM21 restricts hepatitis B virus replication by targeting HBx for proteasomal degradation. Antiviral Res 2021; 192:105107. [PMID: 34097931 DOI: 10.1016/j.antiviral.2021.105107] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 04/29/2021] [Accepted: 05/31/2021] [Indexed: 12/13/2022]
Abstract
As a cytosol ubiquitin ligase and antibody receptor, Tripartite motif-containing 21 (TRIM21) has been reported to mediate the restriction of hepatitis B virus (HBV) through an HBx-antibody-dependent intracellular neutralization (ADIN) mechanism. However, whether TRIM21 limits HBV replication by targeting viral proteins remains unclarified. In this study, we demonstrate that TRIM21 inhibits HBV gene transcription and replication in HBV plasmid transfected and HBV-infected hepatoma cells. RING and PRY-SPRY domains are involved in this activity. TRIM21 interacts with HBx protein and targets HBx for ubiquitination and proteasomal degradation, leading to impaired HBx-mediated degradation of structural maintenance of chromosomes 6 (Smc6) and suppression of HBV replication. TRIM21 fails to restrict the replication of an HBx-deficient HBV. And knock-down of Smc6 largely impairs the anti-HBV activity of TRIM21 in HepG2 cells. In a hydrodynamic injection (HDI)-based HBV mouse model, we confirm an in vivo anti-HBV and anti-HBx therapeutic effect of TRIM21 by over-expression or knocking-out strategy. Our findings reveal a novel mechanism that TRIM21 restricts HBV replication through targeting HBx-Smc5/6 pathway, which may have an implication in the future TRIM21-based therapeutic application.
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Affiliation(s)
- Yahui Song
- 199 RengAi Road, Institute of Biology and Medical Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Min Li
- 199 RengAi Road, Institute of Biology and Medical Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Yanqi Wang
- 199 RengAi Road, Institute of Biology and Medical Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Hongkai Zhang
- 199 RengAi Road, Institute of Biology and Medical Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Lin Wei
- 199 RengAi Road, Institute of Biology and Medical Sciences, Soochow University, Suzhou 215123, P.R. China
| | - Wei Xu
- 199 RengAi Road, Institute of Biology and Medical Sciences, Soochow University, Suzhou 215123, P.R. China.
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35
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Jin Z, Zhu Z. The role of TRIM proteins in PRR signaling pathways and immune-related diseases. Int Immunopharmacol 2021; 98:107813. [PMID: 34126340 DOI: 10.1016/j.intimp.2021.107813] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 05/13/2021] [Accepted: 05/23/2021] [Indexed: 12/25/2022]
Abstract
Pattern recognition receptors (PRRs) are a kind of recognition molecules mainly expressed on innate immune cells. PRRs recognize one or more kinds of pathogen-associated molecular patterns (PAMPs), inducing the production of interleukin (IL), tumor necrosis factor (TNF), interferon (IFN) and other related cytokines to aggravate immune-related diseases. PPR signaling pathways play an important role in both innate and adaptive immune system, and they are easy to be activated or regulated. Tripartite motif (TRIM) proteins are a group of highly conserved proteins in structure. Most of TRIM proteins contain RING domain, which is thought to play a role in ubiquitination. TRIM proteins are involved in viral immunity, inflammatory response, autophagy, and tumor growth. In this review, we focus on the regulation of TRIM proteins on PRR signaling pathways and their roles in immune-related diseases.
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Affiliation(s)
- Zheng Jin
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin Province, China
| | - Zhenhua Zhu
- Department of Orthopaedic Trauma, The Third Affiliated Hospital of Southern, Medical University, Guangzhou, Guangdong Province, China.
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36
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Dai Q, He X, Yu H, Bai Y, Jiang L, Sheng H, Peng J, Wang M, Yu J, Zhang K. Berberine impairs coxsackievirus B3-induced myocarditis through the inhibition of virus replication and host pro-inflammatory response. J Med Virol 2021; 93:3581-3589. [PMID: 33336842 PMCID: PMC8247049 DOI: 10.1002/jmv.26747] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 12/12/2022]
Abstract
Berberine (BBR), an isoquinoline alkaloid isolated from Rhizoma coptidis, is reported to possess antiviral activity. Our previous study has shown that BBR alleviates coxsackievirus B3 (CVB3) replication in HeLa cells. However, the anti-CVB3 activity of BBR is still unclear in vivo. In this study, we explored the effect of BBR on CVB3-induced viral myocarditis in mice. These results demonstrated the beneficial effect of BBR on alleviating CVB3-induced myocarditis in vivo, which sheds new light on the utility of BBR as a therapeutic strategy against CVB3-induced viral myocarditis.
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Affiliation(s)
- Qian Dai
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Xiaomei He
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Hua Yu
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Ying Bai
- Department of Endocrinology and Metabolism, Southwest HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Lu Jiang
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Halei Sheng
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Jin Peng
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Maolin Wang
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Jiang Yu
- Department of Outpatient, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Kebin Zhang
- Clinical Medicine Research Center, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
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37
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Yao L, Xu L, Zhou L, Wu S, Zou W, Chen M, Chen J, Peng H. Toxoplasma gondii Type-I ROP18 Targeting Human E3 Ligase TRIM21 for Immune Escape. Front Cell Dev Biol 2021; 9:685913. [PMID: 34124071 PMCID: PMC8187923 DOI: 10.3389/fcell.2021.685913] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/03/2021] [Indexed: 11/13/2022] Open
Abstract
Toxoplasma gondii is an intracellular pathogen that exerts its virulence through inhibiting host’s innate immune responses, which is mainly related to the type II interferon (IFN-γ) response. IFN-γ inducible tripartite motif 21 (TRIM21), an E3 ligase, plays an important role in anti-infection responses against the intracellular pathogens including bacteria, virus, and parasite. We found that T. gondii virulence factor ROP18 of the type I RH strain (TgROP18I) interacted with human TRIM21, and promoted the latter’s phosphorylation, which subsequently accelerated TRIM21 degradation through lysosomal pathway. Furthermore, TRIM21 protein level was found to be upregulated during RH and CEP strains of T. gondii infection. TRIM21 knocking down reduced the ubiquitin labeling on the parasitophorous vacuole membrane (PVM) [which led to parasitophorous vacuole (PV) acidification and death of CEP tachyzoites], and relieved the inhibition of CEP proliferation induced by IFN-γ in human foreskin fibroblast (HFF) cells which was consistent with the result of TRIM21 overexpression. On the other hand, TRIM21 overexpression enhanced the inhibition of CEP proliferation, and inhibited the binding of IκB-α with p65 to activate the IFN-γ-inducible NF-κB pathway, which might be resulted by TRIM21-IκB-α interaction. In brief, our research identified that in human cells, IFN-γ-inducible TRIM21 functioned in the innate immune responses against type III T. gondii infection; however, TgROP18I promoted TRIM21 phosphorylation, leading to TRIM21 degradation for immune escape in type I strain infection.
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Affiliation(s)
- Lijie Yao
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Liqing Xu
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Lijuan Zhou
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Shuizhen Wu
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Weihao Zou
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Min Chen
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Jiating Chen
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Hongjuan Peng
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Pathogen Biology, School of Public Health, Southern Medical University, Guangzhou, China
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38
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Poonpanichakul T, Chan-In W, Opasawatchai A, Loison F, Matangkasombut O, Charoensawan V, Matangkasombut P. Innate Lymphoid Cells Activation and Transcriptomic Changes in Response to Human Dengue Infection. Front Immunol 2021; 12:599805. [PMID: 34079535 PMCID: PMC8165392 DOI: 10.3389/fimmu.2021.599805] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 04/29/2021] [Indexed: 12/19/2022] Open
Abstract
Background Dengue virus (DENV) infection has a global impact on public health. The clinical outcomes (of DENV) can vary from a flu-like illness called dengue fever (DF), to a more severe form, known as dengue hemorrhagic fever (DHF). The underlying innate immune mechanisms leading to protective or detrimental outcomes have not been fully elucidated. Helper innate lymphoid cells (hILCs), an innate lymphocyte recently discovered, functionally resemble T-helper cells and are important in inflammation and homeostasis. However, the role of hILCs in DENV infection had been unexplored. Methods We performed flow cytometry to investigate the frequency and phenotype of hILCs in peripheral blood mononuclear cells from DENV-infected patients of different disease severities (DF and DHF), and at different phases (febrile and convalescence) of infection. Intracellular cytokine staining of hILCs from DF and DHF were also evaluated by flow cytometry after ex vivo stimulation. Further, the hILCs were sorted and subjected to transcriptome analysis using RNA sequencing. Differential gene expression analysis was performed to compare the febrile and convalescent phase samples in DF and DHF. Selected differentially expressed genes were then validated by quantitative PCR. Results Phenotypic analysis showed marked activation of all three hILC subsets during the febrile phase as shown by higher CD69 expression when compared to paired convalescent samples, although the frequency of hILCs remained unchanged. Upon ex vivo stimulation, hILCs from febrile phase DHF produced significantly higher IFN-γ and IL-4 when compared to those of DF. Transcriptomic analysis showed unique hILCs gene expression in DF and DHF, suggesting that divergent functions of hILCs may be associated with different disease severities. Differential gene expression analysis indicated that hILCs function both in cytokine secretion and cytotoxicity during the febrile phase of DENV infection. Conclusions Helper ILCs are activated in the febrile phase of DENV infection and display unique transcriptomic changes as well as cytokine production that correlate with severity. Targeting hILCs during early innate response to DENV might help shape subsequent immune responses and potentially lessen the disease severity in the future.
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Affiliation(s)
- Tiraput Poonpanichakul
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand.,Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | - Wilawan Chan-In
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Department of Clinical Pathology, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Anunya Opasawatchai
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Fabien Loison
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Oranart Matangkasombut
- Department of Microbiology and Research Unit on Oral Microbiology and Immunology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok, Thailand
| | - Varodom Charoensawan
- Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand.,Integrative Computational BioScience Center (ICBS), Mahidol University, Nakhon Pathom, Thailand
| | - Ponpan Matangkasombut
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand
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39
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Chelbi-Alix MK, Thibault P. Crosstalk Between SUMO and Ubiquitin-Like Proteins: Implication for Antiviral Defense. Front Cell Dev Biol 2021; 9:671067. [PMID: 33968942 PMCID: PMC8097047 DOI: 10.3389/fcell.2021.671067] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022] Open
Abstract
Interferon (IFN) is a crucial first line of defense against viral infection. This cytokine induces the expression of several IFN-Stimulated Genes (ISGs), some of which act as restriction factors. Upon IFN stimulation, cells also express ISG15 and SUMO, two key ubiquitin-like (Ubl) modifiers that play important roles in the antiviral response. IFN itself increases the global cellular SUMOylation in a PML-dependent manner. Mass spectrometry-based proteomics enables the large-scale identification of Ubl protein conjugates to determine the sites of modification and the quantitative changes in protein abundance. Importantly, a key difference amongst SUMO paralogs is the ability of SUMO2/3 to form poly-SUMO chains that recruit SUMO ubiquitin ligases such RING finger protein RNF4 and RNF111, thus resulting in the proteasomal degradation of conjugated substrates. Crosstalk between poly-SUMOylation and ISG15 has been reported recently, where increased poly-SUMOylation in response to IFN enhances IFN-induced ISGylation, stabilizes several ISG products in a TRIM25-dependent fashion, and results in enhanced IFN-induced antiviral activities. This contribution will highlight the relevance of the global SUMO proteome and the crosstalk between SUMO, ubiquitin and ISG15 in controlling both the stability and function of specific restriction factors that mediate IFN antiviral defense.
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Affiliation(s)
| | - Pierre Thibault
- Institute for Research in Immunology and Cancer, Montréal, QC, Canada
- Department of Chemistry, University of Montreal, Montréal, QC, Canada
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40
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Zhou Q, Zhang J. K27-linked noncanonic ubiquitination in immune regulation. J Leukoc Biol 2021; 111:223-235. [PMID: 33857334 DOI: 10.1002/jlb.4ru0620-397rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 12/16/2022] Open
Abstract
Ubiquitination is a common form of posttranslational modification that has been implicated in regulating considerable immune signaling pathways. The functions of canonic K48- and K63-linked ubiquitination have been well studied. However, the roles of noncanonic ubiquitination remain largely unexplored and require further investigations. There is increasing evidence suggesting that K27-linked noncanonic ubiquitination turns out to be indispensable to both innate immune signaling and T cell signaling. In this review, we provide an overview of the latest findings related to K27-linked ubiquitination, and highlight the crucial roles of K27-linked ubiquitination in regulating antimicrobial response, cytokine signaling and response, as well as T cell activation and differentiation. We also propose interesting areas for better understanding how K27-linked ubiquitination regulates immunity.
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Affiliation(s)
- Qingqing Zhou
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology (Peking University), Peking University Health Science Center, Beijing, China
| | - Jun Zhang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology (Peking University), Peking University Health Science Center, Beijing, China
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41
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Wei Y, Zeng S, Zou C, Zhang H, Peng O, Xue C, Cao Y. Porcine TRIM21 RING-finger E3 ubiquitin ligase is essential for anti-PRRSV activity. Vet Microbiol 2021; 256:109043. [PMID: 33780804 DOI: 10.1016/j.vetmic.2021.109043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 03/19/2021] [Indexed: 12/15/2022]
Abstract
Porcine reproductive and respiratory syndrome (PRRS) causes substantial economic losses to the global pig industry. Members of the tripartite motif (TRIM) family are the important effectors of the innate immune response against viral infections. We have previously characterized the entire porcine TRIM (pTRIM) family, and predicted pTRIM5, 14, 21, 25 and 38 as host restriction factors against PRRSV infection. However, little is known about whether and how pTRIMs restrict the infection of PRRSV. In this study, we firstly performed the amino acid alignments of the RING domain of pTRIM5, 21, 25 and 38, and found that pTRIM proteins contained the characteristic consensus C3HC4 type zinc-binding motif which is important for the ubiquitination function. Then we detected the mRNA changes of pTRIMs in porcine alveolar macrophages (PAMs) by transcriptome sequencing after PRRSV infection in piglets. Transcriptional profiles showed that the expression of pTRIM5, 21 and 26 was significantly (P < 0.05) up-regulated, consistent with their expression in vitro. Finally, as the most up-regulated gene after PRRSV infection both in vivo and in vitro, pTRIM21 was investigated for its anti-PRRSV activity in immortalized PAMs (iPAMs) in two aspects: knockdown and overexpression of pTRIM21. Knockdown of endogenic pTRIM21 could significantly promote PRRSV replication at 12 and 24 h post infection in iPAMs. Meanwhile, overexpression of pTRIM21 could significantly suppress PRRSV replication but not affect its attachment and endocytosis. Moreover, pTRIM21 RING-finger E3 ubiquitin ligase was essential for anti-PRRSV activity. Our data enhance our understanding of the pTRIMs against PRRSV infection, which may help us develop novel therapeutic tools to control PRRSV.
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Affiliation(s)
- Ying Wei
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China; College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023, China
| | - Siying Zeng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Chuangchao Zou
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Hao Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Ouyang Peng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Chunyi Xue
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Yongchang Cao
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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Type I interferons as key players in pancreatic β-cell dysfunction in type 1 diabetes. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2021; 359:1-80. [PMID: 33832648 DOI: 10.1016/bs.ircmb.2021.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Type 1 diabetes (T1D) is a chronic autoimmune disease characterized by pancreatic islet inflammation (insulitis) and specific pancreatic β-cell destruction by an immune attack. Although the precise underlying mechanisms leading to the autoimmune assault remain poorly understood, it is well accepted that insulitis takes place in the context of a conflicting dialogue between pancreatic β-cells and the immune cells. Moreover, both host genetic background (i.e., candidate genes) and environmental factors (e.g., viral infections) contribute to this inadequate dialogue. Accumulating evidence indicates that type I interferons (IFNs), cytokines that are crucial for both innate and adaptive immune responses, act as key links between environmental and genetic risk factors in the development of T1D. This chapter summarizes some relevant pathways involved in β-cell dysfunction and death, and briefly reviews how enteroviral infections and genetic susceptibility can impact insulitis. Moreover, we present the current evidence showing that, in β-cells, type I IFN signaling pathway activation leads to several outcomes, such as long-lasting major histocompatibility complex (MHC) class I hyperexpression, endoplasmic reticulum (ER) stress, epigenetic changes, and induction of posttranscriptional as well as posttranslational modifications. MHC class I overexpression, when combined with ER stress and posttranscriptional/posttranslational modifications, might lead to sustained neoantigen presentation to immune system and β-cell apoptosis. This knowledge supports the concept that type I IFNs are implicated in the early stages of T1D pathogenesis. Finally, we highlight the promising therapeutic avenues for T1D treatment directed at type I IFN signaling pathway.
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Mahajan S, Sharma GK, Bora K, Pattnaik B. Identification of novel interactions between host and non-structural protein 2C of foot-and-mouth disease virus. J Gen Virol 2021; 102. [PMID: 33729124 DOI: 10.1099/jgv.0.001577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The 2C protein of foot-and-mouth disease virus (FMDV) is reported to play a critical role in the virus replication complex and modulating the host's immune response. However, the underlying molecular intricacies of subversion of cellular machinery remains poorly understood, thus emphasizing the need to study 2C-host interactions. In this study, we identified the host proteins interacting with the 2C using yeast-two hybrid (Y2H) approach, which is one of the most recognized, high-throughput tools to study protein-protein interactions. The FMDV-2C bait was characterized for auto-activation, toxicity, and expression and was found to be suitable for mating with cDNA library. On preliminary screening a total of 32 interacting host proteins were identified which were reduced to 22 on subsequent confirmation with alternative yeast based assays. Amongst these, NMI/2C interaction has been reported earlier by Wang et al. (2012) and remaining 21 are novel interactions. The Reactome analysis has revealed the role of the identified host proteins in cellular pathways exploited by 2C during FMDV replication. We also confirmed interaction of MARCH7, an E3 ubiquitin ligase with 2C using mammalian two-hybrid system and co-immunoprecipitation. This study leads to the identification of novel 2C interacting host proteins which enhance our understanding of 2C-host interface and may provide checkpoints for development of potential therapeutics against FMDV.
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Affiliation(s)
- Sonalika Mahajan
- Present address: Division of Veterinary Biotechnology, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243122, India.,ICAR-Project Directorate on Foot and Mouth Disease, Mukteswar, Uttarakhand, 263138, India
| | - Gaurav Kumar Sharma
- Present address: Centre for Animal Disease Research and Diagnosis, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243122, India.,ICAR-Project Directorate on Foot and Mouth Disease, Mukteswar, Uttarakhand, 263138, India
| | - Kavita Bora
- ICAR-Project Directorate on Foot and Mouth Disease, Mukteswar, Uttarakhand, 263138, India
| | - Bramhadev Pattnaik
- ICAR-Project Directorate on Foot and Mouth Disease, Mukteswar, Uttarakhand, 263138, India
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Li J, Xie Y, Li L, Li X, Shen L, Gong J, Zhang R. MicroRNA-30a Modulates Type I Interferon Responses to Facilitate Coxsackievirus B3 Replication Via Targeting Tripartite Motif Protein 25. Front Immunol 2021; 11:603437. [PMID: 33519812 PMCID: PMC7840606 DOI: 10.3389/fimmu.2020.603437] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/23/2020] [Indexed: 11/24/2022] Open
Abstract
Viral myocarditis is caused by a viral infection and characterized by the inflammation of the myocardium. Coxsackievirus B3 (CVB3) infection is one of the most common among the infections caused by this virus. The host's early innate immune response to CVB3 infection particularly depends on the functions of type I interferons (IFNs). In this study, we report that a host microRNA, miR-30a, was upregulated by CVB3 to facilitate its replication. We demonstrated that miR-30a was a potent negative regulator of IFN-I signaling by targeting tripartite motif protein 25 (TRIM25). In addition, we found that TRIM25 overexpression significantly suppressed CVB3 replication, whereas TRIM25 knockdown increased viral titer and VP1 protein expression. MiR-30a inhibits the expression of TRIM25 and TRIM25-mediated retinoic acid-inducible gene (RIG)-I ubiquitination to suppress IFN-β activation and production, thereby resulting in the enhancement of CVB3 replication. These results indicate the proviral role of miR-30a in modulating CVB3 infection for the first time. This not only provides a new strategy followed by CVB3 in order to modulate IFN-I-mediated antiviral immune responses by engaging host miR-30a but also improves our understanding of its pathogenesis.
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Affiliation(s)
- Jia Li
- Department of Cardiothoracic Surgery, Shanghai Children’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yewei Xie
- Department of Cardiothoracic Surgery, Shanghai Children’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Liwei Li
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose, Yangzhou University, Yangzhou, China
| | - Xiaobing Li
- Department of Cardiothoracic Surgery, Shanghai Children’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Li Shen
- Department of Cardiothoracic Surgery, Shanghai Children’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Jin Gong
- Department of Cardiothoracic Surgery, Shanghai Children’s Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Rufang Zhang
- Department of Cardiothoracic Surgery, Shanghai Children’s Hospital, Shanghai Jiaotong University, Shanghai, China
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Lasrado N, Reddy J. An overview of the immune mechanisms of viral myocarditis. Rev Med Virol 2020; 30:1-14. [PMID: 32720461 DOI: 10.1002/rmv.2131] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022]
Abstract
Viral myocarditis has been identified as a major cause of dilated cardiomyopathy (DCM) that can lead to heart failure. Historically, Coxsackieviruses and adenoviruses have been commonly suspected in myocarditis/DCM patients in North America and Europe. However, this notion is changing as other viruses such as Parvovirus B19 and human herpesvirus-6 are increasingly reported as causes of myocarditis in the United States, with the most recent example being the severe acute respiratory syndrome coronavirus 2, causing the Coronavirus Disease-19. The mouse model of Coxsackievirus B3 (CVB3)-induced myocarditis, which may involve mediation of autoimmunity, is routinely used in the study of immune pathogenesis of viral infections as triggers of DCM. In this review, we discuss the immune mechanisms underlying the development of viral myocarditis with an emphasis on autoimmunity in the development of post-infectious myocarditis induced with CVB3.
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Affiliation(s)
- Ninaad Lasrado
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Jay Reddy
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
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Hage A, Rajsbaum R. To TRIM or not to TRIM: the balance of host-virus interactions mediated by the ubiquitin system. J Gen Virol 2020; 100:1641-1662. [PMID: 31661051 DOI: 10.1099/jgv.0.001341] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The innate immune system responds rapidly to protect against viral infections, but an overactive response can cause harmful damage. To avoid this, the response is tightly regulated by post-translational modifications (PTMs). The ubiquitin system represents a powerful PTM machinery that allows for the reversible linkage of ubiquitin to activate and deactivate a target's function. A precise enzymatic cascade of ubiquitin-activating, conjugating and ligating enzymes facilitates ubiquitination. Viruses have evolved to take advantage of the ubiquitin pathway either by targeting factors to dampen the antiviral response or by hijacking the system to enhance their replication. The tripartite motif (TRIM) family of E3 ubiquitin ligases has garnered attention as a major contributor to innate immunity. Many TRIM family members limit viruses either indirectly as components in innate immune signalling, or directly by targeting viral proteins for degradation. In spite of this, TRIMs and other ubiquitin ligases can be appropriated by viruses and repurposed as valuable tools in viral replication. This duality of function suggests a new frontier of research for TRIMs and raises new challenges for discerning the subtleties of these pro-viral mechanisms. Here, we review current findings regarding the involvement of TRIMs in host-virus interactions. We examine ongoing developments in the field, including novel roles for unanchored ubiquitin in innate immunity, the direct involvement of ubiquitin ligases in promoting viral replication, recent controversies on the role of ubiquitin and TRIM25 in activation of the pattern recognition receptor RIG-I, and we discuss the implications these studies have on future research directions.
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Affiliation(s)
- Adam Hage
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Ricardo Rajsbaum
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.,Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA
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Yang L, Zhang T, Zhang C, Xiao C, Bai X, Wang G. Upregulated E3 ligase tripartite motif‐containing protein 21 in psoriatic epidermis ubiquitylates nuclear factor‐κB p65 subunit and promotes inflammation in keratinocytes*. Br J Dermatol 2020; 184:111-122. [PMID: 32232831 DOI: 10.1111/bjd.19057] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2020] [Indexed: 12/15/2022]
Affiliation(s)
- L. Yang
- Department of Dermatology Xijing Hospital Fourth Military Medical University Xi'an China
| | - T. Zhang
- Department of Dermatology Xijing Hospital Fourth Military Medical University Xi'an China
| | - C. Zhang
- Department of Dermatology Xijing Hospital Fourth Military Medical University Xi'an China
| | - C. Xiao
- Department of Dermatology Xijing Hospital Fourth Military Medical University Xi'an China
| | - X. Bai
- Department of Dermatology Xijing Hospital Fourth Military Medical University Xi'an China
| | - G. Wang
- Department of Dermatology Xijing Hospital Fourth Military Medical University Xi'an China
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Tan T, Xia L. TRIM21 Aggravates Herpes Simplex Virus Epithelial Keratitis by Attenuating STING-IRF3-Mediated Type I Interferon Signaling. Front Microbiol 2020; 11:703. [PMID: 32373102 PMCID: PMC7176818 DOI: 10.3389/fmicb.2020.00703] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/26/2020] [Indexed: 12/30/2022] Open
Abstract
Herpes simplex virus-1 (HSV-1) is the leading cause of infectious blindness in the developed world. HSV-1 infection can occur anywhere in the eye, and the most common presentation is epithelial keratitis. In the HSV epithelial keratitis mice model, we detected the expression of TRIM21 and then investigated the clinical relationship between TRIM21 and HSV epithelial keratitis by silencing TRIM21. Through the clinical scores and histopathology examination, we found that TRIM21 can effectively reduce the severity of HSV epithelial keratitis. Furthermore, silencing TRIM21 significantly controlled the virus particle release at 1, 3, and 5 days post-HSV-1 infection. Notably, the production of IFN-β was enhanced, and the secretion of pro-inflammatory cytokines (IL-6 and TNF-a) was inhibited. Next, human corneal epithelial cells were pretreated with lentivirus or siRNA, respectively, so that TRIM21 expression was overexpressed or silenced. We focused on the regulation of STING-IRF3 and type I interferon signaling after infected with HSV-1. In conclusion, our results have identified that TRIM21 is abnormally high expressed in HSV epithelial keratitis. TRIM21 enhances the replication of HSV-1 in corneal epithelial cells via suppressing the production of type I IFN by inhibiting STING/IRF3 signaling. It also promotes the secretion of IL-6 and TNF-a, thereby aggravating the severity of HSV epithelial keratitis.
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Affiliation(s)
- Tianchang Tan
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Likun Xia
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, China
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Majer A, McGreevy A, Booth TF. Molecular Pathogenicity of Enteroviruses Causing Neurological Disease. Front Microbiol 2020; 11:540. [PMID: 32328043 PMCID: PMC7161091 DOI: 10.3389/fmicb.2020.00540] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/12/2020] [Indexed: 12/12/2022] Open
Abstract
Enteroviruses are single-stranded positive-sense RNA viruses that primarily cause self-limiting gastrointestinal or respiratory illness. In some cases, these viruses can invade the central nervous system, causing life-threatening neurological diseases including encephalitis, meningitis and acute flaccid paralysis (AFP). As we near the global eradication of poliovirus, formerly the major cause of AFP, the number of AFP cases have not diminished implying a non-poliovirus etiology. As the number of enteroviruses linked with neurological disease is expanding, of which many had previously little clinical significance, these viruses are becoming increasingly important to public health. Our current understanding of these non-polio enteroviruses is limited, especially with regards to their neurovirulence. Elucidating the molecular pathogenesis of these viruses is paramount for the development of effective therapeutic strategies. This review summarizes the clinical diseases associated with neurotropic enteroviruses and discusses recent advances in the understanding of viral invasion of the central nervous system, cell tropism and molecular pathogenesis as it correlates with host responses.
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Affiliation(s)
- Anna Majer
- Viral Diseases Division, National Microbiology Laboratory, Winnipeg, MB, Canada
| | - Alan McGreevy
- Viral Diseases Division, National Microbiology Laboratory, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada.,Department of Biology, University of Winnipeg, Winnipeg, MB, Canada
| | - Timothy F Booth
- Viral Diseases Division, National Microbiology Laboratory, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada
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van Huizen M, Kikkert M. The Role of Atypical Ubiquitin Chains in the Regulation of the Antiviral Innate Immune Response. Front Cell Dev Biol 2020; 7:392. [PMID: 32039206 PMCID: PMC6987411 DOI: 10.3389/fcell.2019.00392] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/24/2019] [Indexed: 12/18/2022] Open
Abstract
It is well established that polyubiquitin chains, in particular those linked through K48 and K63, play a key role in the regulation of the antiviral innate immune response. However, the role of the atypical chains linked via any of the other lysine residues (K6, K11, K27, K29, and K33) and the M1-linked linear chains have not been investigated very well yet in this context. This is partially due to a lack of tools to study these linkages in their biological context. Interestingly though, recent findings underscore the importance of the atypical chains in the regulation of the antiviral immune response. This review will highlight the most important advances in the study of the role of atypical ubiquitin chains, particularly in the regulation of intracellular antiviral innate immune signaling pathways. We will also discuss the development of new tools and how these can increase our knowledge of the role of atypical ubiquitin chains.
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Affiliation(s)
- Mariska van Huizen
- Department of Medical Microbiology, LUMC Center for Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Marjolein Kikkert
- Department of Medical Microbiology, LUMC Center for Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
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