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Huang S, Huang Y, Su T, Huang R, Su L, Wu Y, Weng S, He J, Xie J. Orange-spotted grouper nervous necrosis virus-encoded protein A induces interferon expression via RIG-I/MDA5-MAVS-TBK1-IRF3 signaling in fish cells. Microbiol Spectr 2024; 12:e0453222. [PMID: 38095472 PMCID: PMC10783131 DOI: 10.1128/spectrum.04532-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 11/20/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE As a major pathogen, nervous necrosis virus (NNV) infects more than 120 fish species worldwide and is virulent to larvae and juvenile fish, hampering the development of the fish fry industry. Understanding virus-host interaction and underlying mechanisms is an important but largely unknown issue in fish virus studies. Here, using channel catfish ovary and fathead minnow cells as models for the study of innate immunity signaling, we found that NNV-encoded ProA activated interferon signaling via the retinoic acid-inducible gene I (RIG-I)-like receptor (RLR) pathway which was still suppressed by the infection of wild-type NNV. This finding has important implications for the comprehension of NNV protein function and the immune response from different cells. First, RIG-I is the key node for anti-NNV innate immunity. Second, the response intensity of RLR signaling determines the degree of NNV proliferation. This study expands our knowledge regarding the overview of signal pathways affected by NNV-encoded protein and also highlights potential directions for the control of aquatic viruses.
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Affiliation(s)
- Siyou Huang
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Yi Huang
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Taowen Su
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Runqing Huang
- School of Life Science, Huizhou University, Huizhou, China
| | - Lianpan Su
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Yujia Wu
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Shaoping Weng
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Jianguo He
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Junfeng Xie
- State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
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2
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Sharma N, Kessler P, Sen GC. Cell-type-specific need of Ddx3 and PACT for interferon induction by RNA viruses. J Virol 2023; 97:e0130423. [PMID: 37982645 PMCID: PMC10734550 DOI: 10.1128/jvi.01304-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/23/2023] [Indexed: 11/21/2023] Open
Abstract
IMPORTANCE Interferon-stimulated genes (ISGs) are induced in response to interferon expression due to viral infections. Role of these ISGs can be variable in different cells or organs. Our study highlights such cell-specific role of an ISG, Ddx3, which regulates the translation of mRNAs essential for interferon induction (PACT) and interferon signaling (STAT1) in a cell-specific manner. Our study also highlights the role of PACT in RNA virus-induced RLR signaling. Our study depicts how Ddx3 regulates innate immune signaling pathways in an indirect manner. Such cell-specific behavior of ISGs helps us to better understand viral pathogenesis and highlights the complexities of viral tropism and innate immune responses.
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Affiliation(s)
- Nikhil Sharma
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Patricia Kessler
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ganes C. Sen
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Chathuranga WAG, Nikapitiya C, Kim JH, Chathuranga K, Weerawardhana A, Dodantenna N, Kim DJ, Poo H, Jung JU, Lee CH, Lee JS. Gadd45β is critical for regulation of type I interferon signaling by facilitating G3BP-mediated stress granule formation. Cell Rep 2023; 42:113358. [PMID: 37917584 DOI: 10.1016/j.celrep.2023.113358] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 09/04/2023] [Accepted: 10/12/2023] [Indexed: 11/04/2023] Open
Abstract
Stress granules (SGs) constitute a signaling hub that plays a critical role in type I interferon responses. Here, we report that growth arrest and DNA damage-inducible beta (Gadd45β) act as a positive regulator of SG-mediated interferon signaling by targeting G3BP upon RNA virus infection. Gadd45β deficiency markedly impairs SG formation and SG-mediated activation of interferon signaling in vitro. Gadd45β knockout mice are highly susceptible to RNA virus infection, and their ability to produce interferon and cytokines is severely impaired. Specifically, Gadd45β interacts with the RNA-binding domain of G3BP, leading to conformational expansion of G3BP1 via dissolution of its autoinhibitory electrostatic intramolecular interaction. The acidic loop 1- and RNA-binding properties of Gadd45β markedly increase the conformational expansion and RNA-binding affinity of the G3BP1-Gadd45β complex, thereby promoting assembly of SGs. These findings suggest a role for Gadd45β as a component and critical regulator of G3BP1-mediated SG formation, which facilitates RLR-mediated interferon signaling.
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Affiliation(s)
- W A Gayan Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Chamilani Nikapitiya
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Jae-Hoon Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea; Livestock Products Analysis Division, Division of Animal Health, Daejeon Metropolitan City Institute of Health and Environment, Daejeon 34146, Republic of Korea
| | - Kiramage Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Asela Weerawardhana
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Niranjan Dodantenna
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Doo-Jin Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Haryoung Poo
- Department of Biomedical Science and Engineering, Konkuk Institute of Technology, Konkuk University, Seoul 05029, Republic of Korea
| | - Jae U Jung
- Department of Cancer Biology, Infection Biology Program, and Global Center for Pathogen Research and Human Health, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRRIB), Daejeon 34141, Republic of Korea.
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea.
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4
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Zhong N, Wang C, Weng G, Ling T, Xu L. ZNF205 positively regulates RLR antiviral signaling by targeting RIG-I. Acta Biochim Biophys Sin (Shanghai) 2023; 55:1582-1591. [PMID: 37580950 PMCID: PMC10577479 DOI: 10.3724/abbs.2023136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/19/2023] [Indexed: 08/16/2023] Open
Abstract
Retinoic acid-inducible gene I (RIG-I) is a cytosolic viral RNA receptor. Upon viral infection, the protein recognizes and then recruits adapter protein mitochondrial antiviral signaling (MAVS) protein, initiating the production of interferons and proinflammatory cytokines to establish an antiviral state. In the present study, we identify zinc finger protein 205 (ZNF205) which associates with RIG-I and promotes the Sendai virus (SeV)-induced antiviral innate immune response. Overexpression of ZNF205 facilitates interferon-beta (IFN-β) introduction, whereas ZNF205 deficiency restricts its introduction. Mechanistically, the C-terminal zinc finger domain of ZNF205 interacts with the N-terminal tandem caspase recruitment domains (CARDs) of RIG-I; this interaction markedly promotes K63 ubiquitin-linked polyubiquitination of RIG-I, which is crucial for RIG-I activation. Thus, our results demonstrate that ZNF205 is a positive regulator of the RIG-I-mediated innate antiviral immune signaling pathway.
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Affiliation(s)
- Ni Zhong
- />College of Life ScienceJiangxi Normal UniversityNanchang330022China
| | - Chen Wang
- />College of Life ScienceJiangxi Normal UniversityNanchang330022China
| | - Guangxiu Weng
- />College of Life ScienceJiangxi Normal UniversityNanchang330022China
| | - Ting Ling
- />College of Life ScienceJiangxi Normal UniversityNanchang330022China
| | - Liangguo Xu
- />College of Life ScienceJiangxi Normal UniversityNanchang330022China
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5
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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6
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Sui L, Zhao Y, Wang W, Chi H, Tian T, Wu P, Zhang J, Zhao Y, Wei ZK, Hou Z, Zhou G, Wang G, Wang Z, Liu Q. Flavivirus prM interacts with MDA5 and MAVS to inhibit RLR antiviral signaling. Cell Biosci 2023; 13:9. [PMID: 36639652 PMCID: PMC9837762 DOI: 10.1186/s13578-023-00957-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 01/05/2023] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Vector-borne flaviviruses, including tick-borne encephalitis virus (TBEV), Zika virus (ZIKV), West Nile virus (WNV), yellow fever virus (YFV), dengue virus (DENV), and Japanese encephalitis virus (JEV), pose a growing threat to public health worldwide, and have evolved complex mechanisms to overcome host antiviral innate immunity. However, the underlying mechanisms of flavivirus structural proteins to evade host immune response remain elusive. RESULTS We showed that TBEV structural protein, pre-membrane (prM) protein, could inhibit type I interferon (IFN-I) production. Mechanically, TBEV prM interacted with both MDA5 and MAVS and interfered with the formation of MDA5-MAVS complex, thereby impeding the nuclear translocation and dimerization of IRF3 to inhibit RLR antiviral signaling. ZIKV and WNV prM was also demonstrated to interact with both MDA5 and MAVS, while dengue virus serotype 2 (DENV2) and YFV prM associated only with MDA5 or MAVS to suppress IFN-I production. In contrast, JEV prM could not suppress IFN-I production. Overexpression of TBEV and ZIKV prM significantly promoted the replication of TBEV and Sendai virus. CONCLUSION Our findings reveal the immune evasion mechanisms of flavivirus prM, which may contribute to understanding flavivirus pathogenicity, therapeutic intervention and vaccine development.
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Affiliation(s)
- Liyan Sui
- grid.430605.40000 0004 1758 4110Department of Infectious Diseases and Center of Infectious diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Key Laboratory of Zoonotic Diseases, The First Hospital of Jilin University, Changchun, China
| | - Yinghua Zhao
- grid.430605.40000 0004 1758 4110Department of Infectious Diseases and Center of Infectious diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Key Laboratory of Zoonotic Diseases, The First Hospital of Jilin University, Changchun, China
| | - Wenfang Wang
- grid.64924.3d0000 0004 1760 5735College of Basic Medical Science, Jilin University, Changchun, China
| | - Hongmiao Chi
- grid.64924.3d0000 0004 1760 5735College of Basic Medical Science, Jilin University, Changchun, China
| | - Tian Tian
- grid.64924.3d0000 0004 1760 5735College of Basic Medical Science, Jilin University, Changchun, China
| | - Ping Wu
- grid.412246.70000 0004 1789 9091College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Jinlong Zhang
- grid.430605.40000 0004 1758 4110Department of Infectious Diseases and Center of Infectious diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Key Laboratory of Zoonotic Diseases, The First Hospital of Jilin University, Changchun, China
| | - Yicheng Zhao
- grid.430605.40000 0004 1758 4110Department of Infectious Diseases and Center of Infectious diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Key Laboratory of Zoonotic Diseases, The First Hospital of Jilin University, Changchun, China
| | - Zheng-Kai Wei
- grid.443369.f0000 0001 2331 8060School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Zhijun Hou
- grid.412246.70000 0004 1789 9091College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Guoqiang Zhou
- grid.482450.f0000 0004 8514 6702The Biological safety level-3 Laboratory, Changchun Institute of Biological Products Co., Ltd, Changchun, China
| | - Guoqing Wang
- grid.64924.3d0000 0004 1760 5735College of Basic Medical Science, Jilin University, Changchun, China
| | - Zedong Wang
- grid.430605.40000 0004 1758 4110Department of Infectious Diseases and Center of Infectious diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Key Laboratory of Zoonotic Diseases, The First Hospital of Jilin University, Changchun, China
| | - Quan Liu
- grid.430605.40000 0004 1758 4110Department of Infectious Diseases and Center of Infectious diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, Key Laboratory of Zoonotic Diseases, The First Hospital of Jilin University, Changchun, China ,grid.443369.f0000 0001 2331 8060School of Life Sciences and Engineering, Foshan University, Foshan, China
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Ran XH, Zhu JW, Chen YY, Ni RZ, Mu D. Papain-like protease of SARS-CoV-2 inhibits RLR signaling in a deubiquitination-dependent and deubiquitination-independent manner. Front Immunol 2022; 13:947272. [PMID: 36032116 PMCID: PMC9411789 DOI: 10.3389/fimmu.2022.947272] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/22/2022] [Indexed: 11/29/2022] Open
Abstract
The newly emerged severe acute respiratory syndrome (SARS) coronavirus-2 (SARS-CoV-2) can result in dysregulated interferon (IFN) responses that contribute to disease severity. The papain-like protease of SARS-CoV-2 (SCoV2-PLpro) has been previously reported to attenuate IFN responses, but the underlying mechanism is not fully understood. In this study, we found that SCoV2-PLpro potently suppressed IFN production and signaling induced by Sendai virus as well as RIG-I-like receptor (RLR) signaling pathway components, including RIG-I, MAVS, TBK1, TRAF3, TRAF6, and IRF3. SCoV2-PLpro exhibited different specificity and efficiency than SARS-CoV PLpro, with the former exerting a greater inhibitory effect on the RIG-I- and TRAF3-mediated IFN response but a weaker effect on the MAVS-mediated IFN response. Furthermore, we showed that SCoV2-PLpro significantly reduced K63-ubiquitination of RIG-I, MAVS, TBK1, TRAF3, TRAF6, and IRF3 and K48-ubiquitination of IκBα, which are known critical for the innate immune signal transduction. The deubiquitinating (DUB) activity of SCoV2-PLpro required a catalytic residue cysteine 111 (C111) but not the UBL domain. Notably, by utilizing the DUB-defective C111 mutant, we demonstrated that SCoV2-PLpro targeted RLR signaling pathway regulators via deubiquitination-dependent and -independent mechanisms, with the inhibitory activities of RIG-I and TBK1 correlating with DUB function, whereas the antagonism effects on MAVS, TRAF3, TRAF6, and IRF3 independent on DUB activity. Overall, our results reveal that SCoV2-PLpro evolves differential IFN antagonism activity from SCoV1-PLpro and it targets multiple key RLR signaling pathway components via various mechanisms, providing insights into SARS-CoV-2 pathogenesis and clues for developing antiviral therapies for COVID-19.
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Affiliation(s)
- Xiang-Hong Ran
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Jia-Wu Zhu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Ya-Yun Chen
- 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,*Correspondence: Dan Mu,
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8
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Snider DL, Park M, Murphy KA, Beachboard DC, Horner SM. Signaling from the RNA sensor RIG-I is regulated by ufmylation. Proc Natl Acad Sci U S A 2022; 119:e2119531119. [PMID: 35394863 PMCID: PMC9169834 DOI: 10.1073/pnas.2119531119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/28/2022] [Indexed: 01/23/2023] Open
Abstract
The RNA-binding protein RIG-I is a key initiator of the antiviral innate immune response. The signaling that mediates the antiviral response downstream of RIG-I is transduced through the adaptor protein MAVS and results in the induction of type I and III interferons (IFNs). This signal transduction occurs at endoplasmic reticulum (ER)–mitochondrial contact sites, to which RIG-I and other signaling proteins are recruited following their activation. RIG-I signaling is highly regulated to prevent aberrant activation of this pathway and dysregulated induction of IFN. Previously, we identified UFL1, the E3 ligase of the ubiquitin-like modifier conjugation system called ufmylation, as one of the proteins recruited to membranes at ER–mitochondrial contact sites in response to RIG-I activation. Here, we show that UFL1, as well as the process of ufmylation, promote IFN induction in response to RIG-I activation. We found that following RNA virus infection, UFL1 is recruited to the membrane-targeting protein 14–3-3ε and that this complex is then recruited to activated RIG-I to promote downstream innate immune signaling. Importantly, we found that 14–3-3ε has an increase in UFM1 conjugation following RIG-I activation. Additionally, loss of cellular ufmylation prevents the interaction of 14–3-3ε with RIG-I, which abrogates the interaction of RIG-I with MAVS and thus the downstream signal transduction that induces IFN. Our results define ufmylation as an integral regulatory component of the RIG-I signaling pathway and as a posttranslational control for IFN induction.
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Affiliation(s)
- Daltry L. Snider
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710
| | - Moonhee Park
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710
| | - Kristen A. Murphy
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710
| | - Dia C. Beachboard
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710
| | - Stacy M. Horner
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710
- Department of Medicine, Duke University Medical Center, Durham, NC 27710
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9
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Wu XM, Fang H, Zhang J, Bi YH, Chang MX. Histone H2A Nuclear/Cytoplasmic Trafficking Is Essential for Negative Regulation of Antiviral Immune Response and Lysosomal Degradation of TBK1 and IRF3. Front Immunol 2021; 12:771277. [PMID: 34868031 PMCID: PMC8636446 DOI: 10.3389/fimmu.2021.771277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/29/2021] [Indexed: 11/20/2022] Open
Abstract
Histone H2A is a nuclear molecule tightly associated in the form of the nucleosome. Our previous studies have demonstrated the antibacterial property of piscine H2A variants against gram-negative bacteria Edwardsiella piscicida and Gram-positive bacteria Streptococcus agalactiae. In this study, we show the function and mechanism of piscine H2A in the negative regulation of RLR signaling pathway and host innate immune response against spring viremia of carp virus (SVCV) infection. SVCV infection significantly inhibits the expression of histone H2A during an early stage of infection, but induces the expression of histone H2A during the late stage of infection such as at 48 and 72 hpi. Under normal physiological conditions, histone H2A is nuclear-localized. However, SVCV infection promotes the migration of histone H2A from the nucleus to the cytoplasm. The in vivo studies revealed that histone H2A overexpression led to the increased expression of SVCV gene and decreased survival rate. The overexpression of histone H2A also significantly impaired the expression levels of those genes involved in RLR antiviral signaling pathway. Furthermore, histone H2A targeted TBK1 and IRF3 to promote their protein degradation via the lysosomal pathway and impair the formation of TBK1-IRF3 functional complex. Importantly, histone H2A completely abolished TBK1-mediated antiviral activity and enormously impaired the protein expression of IRF3, especially nuclear IRF3. Further analysis demonstrated that the inhibition of histone H2A nuclear/cytoplasmic trafficking could relieve the protein degradation of TBK1 and IRF3, and blocked the negative regulation of histone H2A on the SVCV infection. Collectively, our results suggest that histone H2A nuclear/cytoplasmic trafficking is essential for negative regulation of RLR signaling pathway and antiviral immune response in response to SVCV infection.
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Affiliation(s)
- Xiao Man Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Hong Fang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jie Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Yong Hong Bi
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Ming Xian Chang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China.,Innovation Academy for Seed Design, Chinese Academy of Sciences, Wuhan, China
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10
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Wüst S, Schad P, Burkart S, Binder M. Comparative Analysis of Six IRF Family Members in Alveolar Epithelial Cell-Intrinsic Antiviral Responses. Cells 2021; 10:cells10102600. [PMID: 34685580 PMCID: PMC8533862 DOI: 10.3390/cells10102600] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 12/14/2022] Open
Abstract
Host cell-intrinsic antiviral responses are largely mediated by pattern-recognition receptor (PRR) signaling and the interferon (IFN) system. The IFN regulatory factor (IRF) family of transcription factors takes up a central role in transcriptional regulation of antiviral innate immunity. IRF3 and IRF7 are known to be key players downstream of PRRs mediating the induction of type I and III IFNs. IFN signaling then requires IRF9 for the expression of the full array of interferon stimulated genes (ISGs) ultimately defining the antiviral state of the cell. Other members of the IRF family clearly play a role in mediating or modulating IFN responses, such as IRF1, IRF2 or IRF5, however their relative contribution to mounting a functional antiviral response is much less understood. In this study, we systematically and comparatively assessed the impact of six members of the IRF family on antiviral signaling in alveolar epithelial cells. We generated functional knockouts of IRF1, -2, -3, -5, -7, and -9 in A549 cells, and measured their impact on the expression of IFNs and further cytokines, ISGs and other IRFs, as well as on viral replication. Our results confirmed the vital importance of IRF3 and IRF9 in establishing an antiviral state, whereas IRF1, 5 and 7 were largely dispensable. The previously described inhibitory activity of IRF2 could not be observed in our experimental system.
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Affiliation(s)
- Sandra Wüst
- Research Group “Dynamics of Viral Infection and the Innate Antiviral Response”, Division F170, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (S.W.); (P.S.); (S.B.)
| | - Paulina Schad
- Research Group “Dynamics of Viral Infection and the Innate Antiviral Response”, Division F170, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (S.W.); (P.S.); (S.B.)
- Faculty of Biosciences, Heidelberg University, 69120 Heidelberg, Germany
| | - Sandy Burkart
- Research Group “Dynamics of Viral Infection and the Innate Antiviral Response”, Division F170, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (S.W.); (P.S.); (S.B.)
- Faculty of Biosciences, Heidelberg University, 69120 Heidelberg, Germany
| | - Marco Binder
- Research Group “Dynamics of Viral Infection and the Innate Antiviral Response”, Division F170, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (S.W.); (P.S.); (S.B.)
- Correspondence:
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11
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Yang YX, Huang JP, Li SN, Li J, Ling T, Xie T, Xu LG. HSPBP1 facilitates cellular RLR-mediated antiviral response by inhibiting the K48-linked ubiquitination of RIG-I. Mol Immunol 2021; 134:62-71. [PMID: 33713958 DOI: 10.1016/j.molimm.2021.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 01/23/2021] [Accepted: 03/01/2021] [Indexed: 10/21/2022]
Abstract
Retinoic acid-inducible gene I (RIG-I) plays a critical role in the recognition of intracytoplasmic viral RNA. Upon binding to the RNA of invading viruses, the activated RIG-I translocates to mitochondria, where it recruits adapter protein MAVS, causing a series of signaling cascades. In this study, we demonstrated that Hsp70 binding protein 1 (HSPBP1) promotes RIG-I-mediated signal transduction. The overexpression of HSPBP1 can increase the stability of RIG-I protein by inhibiting its K48-linked ubiquitination, and promote the activation of IRF3 and the production of IFN-β induced by Sendai virus. Knockdown and knockout of HSPBP1 leads to down-regulation of virus-induced RIG-I expression, inhibits IRF3 activation, and reduces the production of IFNB1. These results indicate that HSPBP1 positively regulates the antiviral signal pathway induced by inhibiting the K48-linked ubiquitination of RIG-I.
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Affiliation(s)
- Ya-Xian Yang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Jing-Ping Huang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Sheng-Na Li
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Jing Li
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Ting Ling
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Tao Xie
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Liang-Guo Xu
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China.
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12
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Weng GX, Ling T, Hou W, Li SN, Chen T, Zhang Z, Wang DD, Xu LG. Mitochondrial DUT-M potentiates RLR-mediated antiviral signaling by enhancing VISA and TRAF2 association. Mol Immunol 2021; 132:117-125. [PMID: 33582548 DOI: 10.1016/j.molimm.2021.01.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/09/2021] [Accepted: 01/19/2021] [Indexed: 11/19/2022]
Abstract
Upon recognition of intracytoplasmic viral RNA, activated RIG-I is recruited to the mitochondrion-located adaptor protein VISA (also known as MAVS, CARDIF, and IPS-1). VISA then acts as a central signaling platform for linking RIG-I and downstream signaling components, such as TRAF2, 5, and 6, TBK1, and IKK, leading to activation of the kinases TBK1 and IKK. These activated kinases further phosphorylate the transcription factors IRF3/7 and NF-κB, leading to the induction of downstream antiviral genes. Here, we report a mitochondrial isoform, deoxyuridine triphosphate nucleotidohydrolase (dUTPase), DUT-M, as a positive regulator in RLR-VISA-mediated antiviral signaling. DUT-M interacts with VISA and RIG-I to facilitate the assembly of the VISA-TRAF2 complex and to augment the polyubiquitination of TRAF2, leading to potentiated activation of IRF3 dimerization and phosphorylation of P65, and enhanced VISA-mediated innate immune response. RLR-VISA-mediated IRF3 dimerization and P65 phosphorylation, were inhibited in DUT-knockdown and DUT-deficient 293 cells. Thus, DUT-M is a positive regulator of the RIG-I-VISA-mediated innate immune response to RNA viruses.
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Affiliation(s)
- Guang-Xiu Weng
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Ting Ling
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Wen Hou
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Sheng-Na Li
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Tian Chen
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Zhi Zhang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Dan-Dan Wang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Liang-Guo Xu
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China.
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13
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Fekete T, Ágics B, Bencze D, Bene K, Szántó A, Tarr T, Veréb Z, Bácsi A, Pázmándi K. Regulation of RLR-Mediated Antiviral Responses of Human Dendritic Cells by mTOR. Front Immunol 2020; 11:572960. [PMID: 33013932 PMCID: PMC7516067 DOI: 10.3389/fimmu.2020.572960] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/25/2020] [Indexed: 12/13/2022] Open
Abstract
To detect replicating viruses, dendritic cells (DCs) utilize cytoplasmic retinoic acid inducible gene-(RIG) I-like receptors (RLRs), which play an essential role in the subsequent activation of antiviral immune responses. In this study, we aimed to explore the role of the mammalian target of rapamycin (mTOR) in the regulation of RLR-triggered effector functions of human monocyte-derived DCs (moDCs) and plasmacytoid DCs (pDCs). Our results show that RLR stimulation increased the phosphorylation of the mTOR complex (mTORC) 1 and mTORC2 downstream targets p70S6 kinase and Akt, respectively, and this process was prevented by the mTORC1 inhibitor rapamycin as well as the dual mTORC1/C2 kinase inhibitor AZD8055 in both DC subtypes. Furthermore, inhibition of mTOR in moDCs impaired the RLR stimulation-triggered glycolytic switch, which was reflected by the inhibition of lactate production and downregulation of key glycolytic genes. Blockade of mTOR diminished the ability of RLR-stimulated moDCs and pDCs to secret type I interferons (IFNs) and pro-inflammatory cytokines, while it did not affect the phenotype of DCs. We also found that mTOR blockade decreased the phosphorylation of Tank-binding kinase 1 (TBK1), which mediates RLR-driven cytokine production. In addition, rapamycin abrogated the ability of both DC subtypes to promote the proliferation and differentiation of IFN-y and Granzyme B producing CD8 + T cells. Interestingly, AZD8055 was much weaker in its ability to decrease the T cell proliferation capacity of DCs and was unable to inhibit the DC-triggered production of IFN-y and Granyzme B by CD8 + T cells. Here we demonstrated for the first time that mTOR positively regulates the RLR-mediated antiviral activity of human DCs. Further, we show that only selective inhibition of mTORC1 but not dual mTORC1/C2 blockade suppresses effectively the T cell stimulatory capacity of DCs that should be considered in the development of new generation mTOR inhibitors and in the improvement of DC-based vaccines.
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Affiliation(s)
- Tünde Fekete
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Beatrix Ágics
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, Debrecen, Hungary
| | - Dóra Bencze
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, Debrecen, Hungary
| | - Krisztián Bene
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Antónia Szántó
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tünde Tarr
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltán Veréb
- Department of Dermatology and Allergology, Regenerative Medicine and Cellular Pharmacology Laboratory, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Attila Bácsi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Kitti Pázmándi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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14
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Woolsey C, Menicucci AR, Cross RW, Luthra P, Agans KN, Borisevich V, Geisbert JB, Mire CE, Fenton KA, Jankeel A, Anand S, Ebihara H, Geisbert TW, Messaoudi I, Basler CF. A VP35 Mutant Ebola Virus Lacks Virulence but Can Elicit Protective Immunity to Wild-Type Virus Challenge. Cell Rep 2020; 28:3032-3046.e6. [PMID: 31533029 DOI: 10.1016/j.celrep.2019.08.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/20/2019] [Accepted: 08/13/2019] [Indexed: 12/25/2022] Open
Abstract
Zaire ebolavirus (EBOV) VP35 protein is a suppressor of type I interferon (IFN) production, an inhibitor of dendritic cell maturation, and a putative virulence determinant. Here, a recombinant EBOV encoding a mutant VP35 virus (VP35m) is demonstrated to activate RIG-I-like receptor signaling and innate antiviral pathways. When inoculated into cynomolgus macaques, VP35m exhibits dramatic attenuation as compared to wild-type EBOV (wtEBOV), with 20 or 300 times the standard 100% lethal challenge dose not causing EBOV disease (EVD). Further, VP35m infection, despite limited replication in vivo, activates antigen presentation and innate immunity pathways and elicits increased frequencies of proliferating memory T cells and B cells and production of anti-EBOV antibodies. Upon wtEBOV challenge, VP35m-immunized animals survive, exhibiting host responses consistent with an orderly immune response and the absence of excessive inflammation. These data demonstrate that VP35 is a critical EBOV immune evasion factor and provide insights into immune mechanisms of EBOV control.
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Affiliation(s)
- Courtney Woolsey
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Andrea R Menicucci
- Department of Molecular Biology and Biochemistry, College of Biological Sciences, University of California, Irvine, Irvine, CA 92697, USA
| | - Robert W Cross
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Priya Luthra
- Center for Microbial Pathogenesis, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA
| | - Krystle N Agans
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Viktoriya Borisevich
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Joan B Geisbert
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Chad E Mire
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Karla A Fenton
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Allen Jankeel
- Department of Molecular Biology and Biochemistry, College of Biological Sciences, University of California, Irvine, Irvine, CA 92697, USA
| | - Sneha Anand
- Department of Molecular Biology and Biochemistry, College of Biological Sciences, University of California, Irvine, Irvine, CA 92697, USA
| | - Hideki Ebihara
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Thomas W Geisbert
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA.
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, College of Biological Sciences, University of California, Irvine, Irvine, CA 92697, USA.
| | - Christopher F Basler
- Center for Microbial Pathogenesis, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA.
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15
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Park YJ, Oanh NTK, Heo J, Kim SG, Lee HS, Lee H, Lee JH, Kang HC, Lim W, Yoo YS, Cho H. Dual targeting of RIG-I and MAVS by MARCH5 mitochondria ubiquitin ligase in innate immunity. Cell Signal 2020; 67:109520. [PMID: 31881323 DOI: 10.1016/j.cellsig.2019.109520] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/20/2019] [Accepted: 12/21/2019] [Indexed: 12/17/2022]
Abstract
The mitochondrial antiviral signaling (MAVS) protein on the mitochondrial outer membrane acts as a central signaling molecule in the RIG-I-like receptor (RLR) signaling pathway by linking upstream viral RNA recognition to downstream signal activation. We previously reported that mitochondrial E3 ubiquitin ligase, MARCH5, degrades the MAVS protein aggregate and prevents persistent downstream signaling. Since the activated RIG-I oligomer interacts and nucleates the MAVS aggregate, MARCH5 might also target this oligomer. Here, we report that MARCH5 targets and degrades RIG-I, but not its inactive phosphomimetic form (RIG-IS8E). The MARCH5-mediated reduction of RIG-I is restored in the presence of MG132, a proteasome inhibitor. Upon poly(I:C) stimulation, RIG-I forms an oligomer and co-expression of MARCH5 reduces the expression of this oligomer. The RING domain of MARCH5 is necessary for binding to the CARD domain of RIG-I. In an in vivo ubiquitination assay, MARCH5 transfers the Lys 48-linked polyubiquitin to Lys 193 and 203 residues of RIG-I. Thus, dual targeting of active RIG-I and MAVS protein oligomers by MARCH5 is an efficient way to switch-off RLR signaling. We propose that modulation of MARCH5 activity might be beneficial for the treatment of chronic immune diseases.
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Affiliation(s)
- Yeon-Ji Park
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea; Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Nguyen Thi Kim Oanh
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - June Heo
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea; Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Seong-Gwang Kim
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea; Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Ho-Soo Lee
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hyojoon Lee
- Ajou University School of Medicine, Suwon, Republic of Korea
| | - Jae-Ho Lee
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea; Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea
| | - Ho Chul Kang
- Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea; Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Wonchung Lim
- Department of Sports Medicine, College of Health Science, Cheongju University, Republic of Korea
| | - Young-Suk Yoo
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea.
| | - Hyeseong Cho
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon, Republic of Korea; Department of Biomedical Sciences, Graduate School of Ajou University, Suwon, Republic of Korea.
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16
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Abstract
RIG-I-like receptor (RLR)-mediated interferon production is critical for antiviral responses. A recent study (Zhang et al., Cell, 2019) uncovered a reciprocal inhibition between RLR signaling and glycolysis: lactate produced by glycolysis inhibits RLR signaling by binding to RLR signaling component mitochondrial antiviral-signaling (MAVS), whereas RLR activation suppresses glycolysis through inhibiting glycolysis enzyme hexokinase.
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Affiliation(s)
- Anoop Singh Chauhan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham B17 2TT, UK
| | - Li Zhuang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Boyi Gan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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17
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Wu M, Dan C, Gui JF, Zhang YB. Fish species-specific TRIM gene FTRCA1 negatively regulates interferon response through attenuating IRF7 transcription. Fish Shellfish Immunol 2019; 90:180-187. [PMID: 31048035 DOI: 10.1016/j.fsi.2019.04.297] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/25/2019] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
In mammals and fish, emerging evidence highlights that TRIM family members play important roles in the interferon (IFN) antiviral immune response. Fish TRIM family has undergone an unprecedented expansion leading to generation of finTRIM subfamily, which is exclusively specific to fish. Our recent results have shown that FTRCA1 (finTRIM C. auratus 1) is likely a fish species-specific finTRIM member in crucian carp C. auratus and acts as a negative modulator to downregulate fish IFN response by autophage-lysosomal degradation of protein kinase TBK1. In the present study, we found that FTRCA1 also impedes the activation of crucian carp IFN promoter by IRF7 but not by IRF3. Mechanistically, FTRCA1 attenuates IRF7 transcription levels likely due to enhanced decay of IRF7 mRNA, leading to reduced IRF7 protein levels and subsequently reduced fish IFN expression. E3 ligase activity is required for FTRCA1 to negatively regulate IRF7-mediated IFN response, because ligase-inactive mutants and the RING-deleted mutant of FTRCA1 lose the ability to block the activation of crucian carp IFN promoter by IRF7. These results together indicate that FTRCA1 is a multifaceted modulator to target different signaling factors for shaping fish IFN response in crucian carp.
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Affiliation(s)
- Min Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Cheng Dan
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jian-Fang Gui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China; The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Yi-Bing Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China; The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China; Key Laboratory of Aquaculture Disease Control of Ministry of Agriculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
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18
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Zhang W, Wang G, Xu ZG, Tu H, Hu F, Dai J, Chang Y, Chen Y, Lu Y, Zeng H, Cai Z, Han F, Xu C, Jin G, Sun L, Pan BS, Lai SW, Hsu CC, Xu J, Chen ZZ, Li HY, Seth P, Hu J, Zhang X, Li H, Lin HK. Lactate Is a Natural Suppressor of RLR Signaling by Targeting MAVS. Cell 2019; 178:176-189.e15. [PMID: 31155231 PMCID: PMC6625351 DOI: 10.1016/j.cell.2019.05.003] [Citation(s) in RCA: 296] [Impact Index Per Article: 59.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/17/2019] [Accepted: 04/30/2019] [Indexed: 12/21/2022]
Abstract
RLR-mediated type I IFN production plays a pivotal role in elevating host immunity for viral clearance and cancer immune surveillance. Here, we report that glycolysis, which is inactivated during RLR activation, serves as a barrier to impede type I IFN production upon RLR activation. RLR-triggered MAVS-RIG-I recognition hijacks hexokinase binding to MAVS, leading to the impairment of hexokinase mitochondria localization and activation. Lactate serves as a key metabolite responsible for glycolysis-mediated RLR signaling inhibition by directly binding to MAVS transmembrane (TM) domain and preventing MAVS aggregation. Notably, lactate restoration reverses increased IFN production caused by lactate deficiency. Using pharmacological and genetic approaches, we show that lactate reduction by lactate dehydrogenase A (LDHA) inactivation heightens type I IFN production to protect mice from viral infection. Our study establishes a critical role of glycolysis-derived lactate in limiting RLR signaling and identifies MAVS as a direct sensor of lactate, which functions to connect energy metabolism and innate immunity.
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Affiliation(s)
- Weina Zhang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis; State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, Beijing, Beijing 100850, China; Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Guihua Wang
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA; Department of Gastrointestinal Surgery Center and Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Zhi-Gang Xu
- International Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Haiqing Tu
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis; State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, Beijing, Beijing 100850, China
| | - Fuqing Hu
- Department of Gastrointestinal Surgery Center and Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Jiang Dai
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis; State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, Beijing, Beijing 100850, China
| | - Yan Chang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis; State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, Beijing, Beijing 100850, China
| | - Yaqi Chen
- Department of Gastrointestinal Surgery Center and Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yanjun Lu
- Department of Gastrointestinal Surgery Center and Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Haolong Zeng
- Department of Gastrointestinal Surgery Center and Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Zhen Cai
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Fei Han
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Chuan Xu
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Guoxiang Jin
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Li Sun
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Bo-Syong Pan
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Shiue-Wei Lai
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Che-Chia Hsu
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA
| | - Jia Xu
- International Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Zhong-Zhu Chen
- International Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Hong-Yu Li
- University of Arkansas for Medical Sciences, College of Pharmacy, Division of Pharmaceutical Science, 200 South Cedar, Little Rock, AR 72202, USA
| | - Pankaj Seth
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Junbo Hu
- Department of Gastrointestinal Surgery Center and Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Xuemin Zhang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis; State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, Beijing, Beijing 100850, China
| | - Huiyan Li
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis; State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, Beijing, Beijing 100850, China
| | - Hui-Kuan Lin
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101, USA; Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan.
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