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Deng NH, Tian Z, Zou YJ, Quan SB. E3 ubiquitin ligase TRIM31: A potential therapeutic target. Biomed Pharmacother 2024; 176:116846. [PMID: 38850648 DOI: 10.1016/j.biopha.2024.116846] [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: 03/13/2024] [Revised: 05/13/2024] [Accepted: 05/27/2024] [Indexed: 06/10/2024] Open
Abstract
Ubiquitination is a key mechanism for post-translational protein modification, affecting protein localization, metabolism, degradation and various cellular physiological processes. Dysregulation of ubiquitination is associated with the pathogenesis of various diseases, such as tumors and cardiovascular diseases, making it a primary area of interest in biochemical research and drug development endeavors. E3 ubiquitin ligases play a pivotal role in modulating the ubiquitination of substrate proteins through their unique recognition functions. TRIM31, a member of the TRIM family of E3 ubiquitin ligases, is aberrantly expressed in different pathophysiological conditions. The biological function of TRIM31 is associated with the occurrence and development of diverse diseases. TRIM31 has been demonstrated to inhibit inflammation by promoting ubiquitin-proteasome-mediated degradation of the sensing protein NLRP3 in the inflammasome. TRIM31 mediates ubiquitination of MAVS, inducing the formation of prion-like aggregates, and triggering innate antiviral immune responses. TRIM31 is also implicated in tumor pathophysiology through its ability to promote ubiquitination of the tumor suppressor protein p53. These findings indicate that TRIM31 is a potential therapeutic target, and subsequent in-depth research of TRIM31 is anticipated to provide information on its clinical application in therapy.
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Affiliation(s)
- Nian-Hua Deng
- The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, Dongguan, Guangdong 523326, PR China
| | - Zhen Tian
- The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, Dongguan, Guangdong 523326, PR China
| | - Ying-Jiao Zou
- Medical Technology Center, Shilong Town Community Health Service Center, Dongguan, Guangdong 523326, PR China
| | - Shou-Bo Quan
- The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, Dongguan, Guangdong 523326, PR China.
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Maes A, Botzki A, Mathys J, Impens F, Saelens X. Systematic review and meta-analysis of genome-wide pooled CRISPR screens to identify host factors involved in influenza A virus infection. J Virol 2024; 98:e0185723. [PMID: 38567969 PMCID: PMC11257101 DOI: 10.1128/jvi.01857-23] [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: 12/01/2023] [Accepted: 03/14/2024] [Indexed: 05/15/2024] Open
Abstract
The host-virus interactome is increasingly recognized as an important research field to discover new therapeutic targets to treat influenza. Multiple pooled genome-wide CRISPR-Cas screens have been reported to identify new pro- and antiviral host factors of the influenza A virus. However, at present, a comprehensive summary of the results is lacking. We performed a systematic review of all reported CRISPR studies in this field in combination with a meta-analysis using the algorithm of meta-analysis by information content (MAIC). Two ranked gene lists were generated based on evidence in 15 proviral and 4 antiviral screens. Enriched pathways in the proviral MAIC results were compared to those of a prior array-based RNA interference (RNAi) meta-analysis. The top 50 proviral MAIC list contained genes whose role requires further elucidation, such as the endosomal ion channel TPCN1 and the kinase WEE1. Moreover, MAIC indicated that ALYREF, a component of the transcription export complex, has antiviral properties, whereas former knockdown experiments attributed a proviral role to this host factor. CRISPR-Cas-pooled screens displayed a bias toward early-replication events, whereas the prior RNAi meta-analysis covered early and late-stage events. RNAi screens led to the identification of a larger fraction of essential genes than CRISPR screens. In summary, the MAIC algorithm points toward the importance of several less well-known pathways in host-influenza virus interactions that merit further investigation. The results from this meta-analysis of CRISPR screens in influenza A virus infection may help guide future research efforts to develop host-directed anti-influenza drugs. IMPORTANCE Viruses rely on host factors for their replication, whereas the host cell has evolved virus restriction factors. These factors represent potential targets for host-oriented antiviral therapies. Multiple pooled genome-wide CRISPR-Cas screens have been reported to identify pro- and antiviral host factors in the context of influenza virus infection. We performed a comprehensive analysis of the outcome of these screens based on the publicly available gene lists, using the recently developed algorithm meta-analysis by information content (MAIC). MAIC allows the systematic integration of ranked and unranked gene lists into a final ranked gene list. This approach highlighted poorly characterized host factors and pathways with evidence from multiple screens, such as the vesicle docking and lipid metabolism pathways, which merit further exploration.
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Affiliation(s)
- Annabel Maes
- VIB Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
- Janssen Pharmaceutica NV, Beerse, Belgium
| | | | | | - Francis Impens
- VIB Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- VIB Proteomics Core, VIB, Ghent, Belgium
| | - Xavier Saelens
- VIB Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
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3
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Liu X, Zhu C, Jia S, Deng H, Tang J, Sun X, Zeng X, Chen X, Wang Z, Liu W, Liao Q, Zha H, Cai X, Xiao W. Dual modifying of MAVS at lysine 7 by SIRT3-catalyzed deacetylation and SIRT5-catalyzed desuccinylation orchestrates antiviral innate immunity. Proc Natl Acad Sci U S A 2024; 121:e2314201121. [PMID: 38635631 PMCID: PMC11047105 DOI: 10.1073/pnas.2314201121] [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: 08/17/2023] [Accepted: 03/20/2024] [Indexed: 04/20/2024] Open
Abstract
To effectively protect the host from viral infection while avoiding excessive immunopathology, the innate immune response must be tightly controlled. However, the precise regulation of antiviral innate immunity and the underlying mechanisms remain unclear. Here, we find that sirtuin3 (SIRT3) interacts with mitochondrial antiviral signaling protein (MAVS) to catalyze MAVS deacetylation at lysine residue 7 (K7), which promotes MAVS aggregation, as well as TANK-binding kinase I and IRF3 phosphorylation, resulting in increased MAVS activation and enhanced type I interferon signaling. Consistent with these findings, loss of Sirt3 in mice and zebrafish renders them more susceptible to viral infection compared to their wild-type (WT) siblings. However, Sirt3 and Sirt5 double-deficient mice exhibit the same viral susceptibility as their WT littermates, suggesting that loss of Sirt5 in Sirt3-deficient mice may counteract the increased viral susceptibility displayed in Sirt3-deficient mice. Thus, we not only demonstrate that SIRT3 positively regulates antiviral immunity in vitro and in vivo, likely via MAVS, but also uncover a previously unrecognized mechanism by which SIRT3 acts as an accelerator and SIRT5 as a brake to orchestrate antiviral innate immunity.
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Affiliation(s)
- Xing Liu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- Hubei Hongshan Laboratory, Wuhan430070, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
- University of Chinese Academy of Sciences, Beijing100049, China
- The Key laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan430072, China
| | - Chunchun Zhu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- Hubei Hongshan Laboratory, Wuhan430070, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Shuke Jia
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Hongyan Deng
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
| | - Jinhua Tang
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Xueyi Sun
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Xiaoli Zeng
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Xiaoyun Chen
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Zixuan Wang
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Wen Liu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Qian Liao
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Huangyuan Zha
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
| | - Xiaolian Cai
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
| | - Wuhan Xiao
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China
- Hubei Hongshan Laboratory, Wuhan430070, China
- The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan430072, China
- University of Chinese Academy of Sciences, Beijing100049, China
- The Key laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan430072, China
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Liu X, Chen H, Ye G, Liu H, Feng C, Chen W, Hu L, Zhou Q, Zhang Z, Li J, Zhang X, He X, Guan Y, Wu Z, Zhao D, Bu Z, Weng C, Huang L. African swine fever virus pB318L, a trans-geranylgeranyl-diphosphate synthase, negatively regulates cGAS-STING and IFNAR-JAK-STAT signaling pathways. PLoS Pathog 2024; 20:e1012136. [PMID: 38620034 PMCID: PMC11018288 DOI: 10.1371/journal.ppat.1012136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/18/2024] [Indexed: 04/17/2024] Open
Abstract
African swine fever (ASF) is an acute, hemorrhagic, and severe infectious disease caused by the ASF virus (ASFV). ASFV has evolved multiple strategies to escape host antiviral immune responses. Here, we reported that ASFV pB318L, a trans-geranylgeranyl-diphosphate synthase, reduced the expression of type I interferon (IFN-I) and IFN-stimulated genes (ISGs). Mechanically, pB318L not only interacted with STING to reduce the translocation of STING from the endoplasmic reticulum to the Golgi apparatus but also interacted with IFN receptors to reduce the interaction of IFNAR1/TYK2 and IFNAR2/JAK1. Of note, ASFV with interruption of B318L gene (ASFV-intB318L) infected PAMs produces more IFN-I and ISGs than that in PAMs infected with its parental ASFV HLJ/18 at the late stage of infection. Consistently, the pathogenicity of ASFV-intB318L is attenuated in piglets compared with its parental virus. Taken together, our data reveal that B318L gene may partially affect ASFV pathogenicity by reducing the production of IFN-I and ISGs. This study provides a clue to design antiviral agents or live attenuated vaccines to prevent and control ASF.
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Affiliation(s)
- Xiaohong Liu
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hefeng Chen
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Guangqiang Ye
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hongyang Liu
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Chunying Feng
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Weiye Chen
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Liang Hu
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Qiongqiong Zhou
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Zhaoxia Zhang
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- Heilongjiang Provincial Key Laboratory of Veterinary Immunology, Harbin, China
| | - Jiangnan Li
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- Heilongjiang Provincial Key Laboratory of Veterinary Immunology, Harbin, China
| | - Xianfeng Zhang
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xijun He
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yuntao Guan
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Zhengshuang Wu
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Dongming Zhao
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Zhigao Bu
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Changjiang Weng
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- Heilongjiang Provincial Key Laboratory of Veterinary Immunology, Harbin, China
| | - Li Huang
- National African Swine Fever Para-reference Laboratory, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- Heilongjiang Provincial Key Laboratory of Veterinary Immunology, Harbin, China
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5
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Bailly C, Degand C, Laine W, Sauzeau V, Kluza J. Implication of Rac1 GTPase in molecular and cellular mitochondrial functions. Life Sci 2024; 342:122510. [PMID: 38387701 DOI: 10.1016/j.lfs.2024.122510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/07/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024]
Abstract
Rac1 is a member of the Rho GTPase family which plays major roles in cell mobility, polarity and migration, as a fundamental regulator of actin cytoskeleton. Signal transduction by Rac1 occurs through interaction with multiple effector proteins, and its activity is regulated by guanine nucleotide exchange factors (GEFs) and GTPase-activating proteins (GAPs). The small protein is mainly anchored to the inner side of the plasma membrane but it can be found in endocellular compartments, notably endosomes and cell nuclei. The protein localizes also into mitochondria where it contributes to the regulation of mitochondrial dynamics, including both mitobiogenesis and mitophagy, in addition to signaling processes via different protein partners, such as the proapoptotic protein Bcl-2 and chaperone sigma-1 receptor (σ-1R). The mitochondrial form of Rac1 (mtRac1) has been understudied thus far, but it is as essential as the nuclear or plasma membrane forms, via its implication in regulation of oxidative stress and DNA damages. Rac1 is subject to diverse post-translational modifications, notably to a geranylgeranylation which contributes importantly to its mitochondrial import and its anchorage to mitochondrial membranes. In addition, Rac1 contributes to the mitochondrial translocation of other proteins, such as p53. The mitochondrial localization and functions of Rac1 are discussed here, notably in the context of human diseases such as cancers. Inhibitors of Rac1 have been identified (NSC-23766, EHT-1864) and some are being developed for the treatment of cancer (MBQ-167) or central nervous system diseases (JK-50561). Their effects on mtRac1 warrant further investigations. An overview of mtRac1 is provided here.
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Affiliation(s)
- Christian Bailly
- University of Lille, CNRS, Inserm, CHU Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, 59000 Lille, France; University of Lille, Faculty of Pharmacy, Institut de Chimie Pharmaceutique Albert Lespagnol (ICPAL), 3 rue du Professeur Laguesse, 59000 Lille, France; OncoWitan, Consulting Scientific Office, Lille (Wasquehal) 59290, France.
| | - Claire Degand
- University of Lille, CNRS, Inserm, CHU Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, 59000 Lille, France
| | - William Laine
- University of Lille, CNRS, Inserm, CHU Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, 59000 Lille, France
| | - Vincent Sauzeau
- Université de Nantes, CHU Nantes, CNRS, INSERM, Institut du thorax, Nantes, France
| | - Jérôme Kluza
- University of Lille, CNRS, Inserm, CHU Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, 59000 Lille, France
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6
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Yuan Y, Li P, Li J, Zhao Q, Chang Y, He X. Protein lipidation in health and disease: molecular basis, physiological function and pathological implication. Signal Transduct Target Ther 2024; 9:60. [PMID: 38485938 PMCID: PMC10940682 DOI: 10.1038/s41392-024-01759-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/31/2023] [Accepted: 01/24/2024] [Indexed: 03/18/2024] Open
Abstract
Posttranslational modifications increase the complexity and functional diversity of proteins in response to complex external stimuli and internal changes. Among these, protein lipidations which refer to lipid attachment to proteins are prominent, which primarily encompassing five types including S-palmitoylation, N-myristoylation, S-prenylation, glycosylphosphatidylinositol (GPI) anchor and cholesterylation. Lipid attachment to proteins plays an essential role in the regulation of protein trafficking, localisation, stability, conformation, interactions and signal transduction by enhancing hydrophobicity. Accumulating evidence from genetic, structural, and biomedical studies has consistently shown that protein lipidation is pivotal in the regulation of broad physiological functions and is inextricably linked to a variety of diseases. Decades of dedicated research have driven the development of a wide range of drugs targeting protein lipidation, and several agents have been developed and tested in preclinical and clinical studies, some of which, such as asciminib and lonafarnib are FDA-approved for therapeutic use, indicating that targeting protein lipidations represents a promising therapeutic strategy. Here, we comprehensively review the known regulatory enzymes and catalytic mechanisms of various protein lipidation types, outline the impact of protein lipidations on physiology and disease, and highlight potential therapeutic targets and clinical research progress, aiming to provide a comprehensive reference for future protein lipidation research.
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Affiliation(s)
- Yuan Yuan
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peiyuan Li
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianghui Li
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.
- Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, China.
| | - Ying Chang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.
- Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, China.
| | - Xingxing He
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.
- Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Diseases, Wuhan, China.
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7
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Wang Y, Gao L. Cholesterol: A friend to viruses. Int Rev Immunol 2024; 43:248-262. [PMID: 38372266 DOI: 10.1080/08830185.2024.2314577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 01/28/2024] [Indexed: 02/20/2024]
Abstract
Cholesterol is a key life-sustaining molecule which regulates membrane fluidity and serves as a signaling mediator. Cholesterol homeostasis is closely related to various pathological conditions including tumor, obesity, atherosclerosis, Alzheimer's disease and viral infection. Viral infection disrupts host cholesterol homeostasis, facilitating their own survival. Meanwhile, the host cells strive to reduce cholesterol accessibility to limit viral infection. This review focuses on the regulation of cholesterol metabolism and the role of cholesterol in viral infection, specifically providing an overview of cholesterol as a friend to promote viral entry, replication, assembly, release and immune evasion, which might inspire valuable thinking for pathogenesis and intervention of viral infection.
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Affiliation(s)
- Yingchun Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P.R. China
| | - Lifen Gao
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong Key Laboratory of Infection and Immunity, and Department of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P.R. China
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8
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Sun N, Cai Q, Zhang Y, Zhang RR, Jiang J, Yang H, Qin CF, Cheng G. The aldehyde dehydrogenase ALDH1B1 exerts antiviral effects through the aggregation of the adaptor MAVS. Sci Signal 2024; 17:eadf8016. [PMID: 38194477 DOI: 10.1126/scisignal.adf8016] [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: 11/14/2022] [Accepted: 12/13/2023] [Indexed: 01/11/2024]
Abstract
Type I interferons (IFNs) are produced by almost all cell types and play a vital role in host defense against viral infection. Infection with an RNA virus activates receptors such as RIG-I, resulting in the recruitment of the adaptor protein MAVS to the RIG-I-like receptor (RLR) signalosome and the formation of prion-like functional aggregates of MAVS, which leads to IFN-β production. Here, we identified the aldehyde dehydrogenase 1B1 (ALDH1B1) as a previously uncharacterized IFN-stimulated gene (ISG) product with critical roles in the antiviral response. Knockout of ALDH1B1 increased, whereas overexpression of ALDH1B1 restricted, the replication of RNA viruses, such as vesicular stomatitis virus (VSV), Zika virus (ZIKV), dengue virus (DENV), and influenza A virus (IAV). We found that ALDH1B1 localized to mitochondria, where it interacted with the transmembrane domain of MAVS to promote MAVS aggregation. ALDH1B1 was recruited to MAVS aggregates. In addition, ALDH1B1 also enhanced the interaction between activated RIG-I and MAVS, thus increasing IFN-β production and the antiviral response. Furthermore, Aldh1b1-/- mice developed more severe symptoms than did wild-type mice upon IAV infection. Together, these data identify an aldehyde dehydrogenase in mitochondria that functionally regulates MAVS-mediated signaling and the antiviral response.
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Affiliation(s)
- Nina Sun
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou 215123, Jiangsu, China
| | - Qiaomei Cai
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou 215123, Jiangsu, China
| | - Yurui Zhang
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou 215123, Jiangsu, China
| | - Rong-Rong Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Jingmei Jiang
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Heng Yang
- National Key Laboratory of Immunity and Inflammation, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou 215123, Jiangsu, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Genhong Cheng
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
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Cai J, Cui J, Wang L. S-palmitoylation regulates innate immune signaling pathways: molecular mechanisms and targeted therapies. Eur J Immunol 2023; 53:e2350476. [PMID: 37369620 DOI: 10.1002/eji.202350476] [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: 04/02/2023] [Revised: 05/10/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023]
Abstract
S-palmitoylation is a reversible posttranslational lipid modification that targets cysteine residues of proteins and plays critical roles in regulating the biological processes of substrate proteins. The innate immune system serves as the first line of defense against pathogenic invaders and participates in the maintenance of tissue homeostasis. Emerging studies have uncovered the functions of S-palmitoylation in modulating innate immune responses. In this review, we focus on the reversible palmitoylation of innate immune signaling proteins, with particular emphasis on its roles in the regulation of protein localization, protein stability, and protein-protein interactions. We also highlight the potential and challenge of developing therapies that target S-palmitoylation or de-palmitoylation for various diseases.
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Affiliation(s)
- Jing Cai
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, School of Life Sciences of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jun Cui
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, School of Life Sciences of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liqiu Wang
- MOE Key Laboratory of Gene Function and Regulation, Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, State Key Laboratory of Biocontrol, School of Life Sciences of Sun Yat-sen University, Guangzhou, Guangdong, China
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10
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He QQ, Huang Y, Nie L, Ren S, Xu G, Deng F, Cheng Z, Zuo Q, Zhang L, Cai H, Wang Q, Wang F, Ren H, Yan H, Xu K, Zhou L, Lu M, Lu Z, Zhu Y, Liu S. MAVS integrates glucose metabolism and RIG-I-like receptor signaling. Nat Commun 2023; 14:5343. [PMID: 37660168 PMCID: PMC10475032 DOI: 10.1038/s41467-023-41028-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 08/18/2023] [Indexed: 09/04/2023] Open
Abstract
MAVS is an adapter protein involved in RIG-I-like receptor (RLR) signaling in mitochondria, peroxisomes, and mitochondria-associated ER membranes (MAMs). However, the role of MAVS in glucose metabolism and RLR signaling cross-regulation and how these signaling pathways are coordinated among these organelles have not been defined. This study reports that RLR action drives a switch from glycolysis to the pentose phosphate pathway (PPP) and the hexosamine biosynthesis pathway (HBP) through MAVS. We show that peroxisomal MAVS is responsible for glucose flux shift into PPP and type III interferon (IFN) expression, whereas MAMs-located MAVS is responsible for glucose flux shift into HBP and type I IFN expression. Mechanistically, peroxisomal MAVS interacts with G6PD and the MAVS signalosome forms at peroxisomes by recruiting TNF receptor-associated factor 6 (TRAF6) and interferon regulatory factor 1 (IRF1). By contrast, MAMs-located MAVS interact with glutamine-fructose-6-phosphate transaminase, and the MAVS signalosome forms at MAMs by recruiting TRAF6 and TRAF2. Our findings suggest that MAVS mediates the interaction of RLR signaling and glucose metabolism.
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Affiliation(s)
- Qiao-Qiao He
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yu Huang
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Longyu Nie
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Sheng Ren
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Gang Xu
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Feiyan Deng
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Zhikui Cheng
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Qi Zuo
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Lin Zhang
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430072, China
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430072, China
| | - Huanhuan Cai
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430072, China
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430072, China
| | - Qiming Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Fubing Wang
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, 430072, China
| | - Hong Ren
- Shanghai Children's Medical Center, Affiliated Hospital to Shanghai Jiao Tong University School of Medicine, Shanghai, 200000, China
| | - Huan Yan
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Ke Xu
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Li Zhou
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Mengji Lu
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, 45122, Germany
| | - Zhibing Lu
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430072, China
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, 430072, China
| | - Ying Zhu
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
| | - Shi Liu
- State Key Laboratory of Virology, Modern Virology Research Center, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430072, China.
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China.
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, 430072, China.
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11
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Jung D, Bachmann HS. Regulation of protein prenylation. Biomed Pharmacother 2023; 164:114915. [PMID: 37236024 DOI: 10.1016/j.biopha.2023.114915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Prenyltransferases (PTases) are known to play a role in embryonic development, normal tissue homeostasis and cancer by posttranslationally modifying proteins involved in these processes. They are being discussed as potential drug targets in an increasing number of diseases, ranging from Alzheimer's disease to malaria. Protein prenylation and the development of specific PTase inhibitors (PTIs) have been subject to intense research in recent decades. Recently, the FDA approved lonafarnib, a specific farnesyltransferase inhibitor that acts directly on protein prenylation; and bempedoic acid, an ATP citrate lyase inhibitor that might alter intracellular isoprenoid composition, the relative concentrations of which can exert a decisive influence on protein prenylation. Both drugs represent the first approved agent in their respective substance class. Furthermore, an overwhelming number of processes and proteins that regulate protein prenylation have been identified over the years, many of which have been proposed as molecular targets for pharmacotherapy in their own right. However, certain aspects of protein prenylation, such as the regulation of PTase gene expression or the modulation of PTase activity by phosphorylation, have attracted less attention, despite their reported influence on tumor cell proliferation. Here, we want to summarize the advances regarding our understanding of the regulation of protein prenylation and the potential implications for drug development. Additionally, we want to suggest new lines of investigation that encompass the search for regulatory elements for PTases, especially at the genetic and epigenetic levels.
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Affiliation(s)
- Dominik Jung
- Institute of Pharmacology and Toxicology, Center for Biomedical Education and Research (ZBAF), School of Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany
| | - Hagen S Bachmann
- Institute of Pharmacology and Toxicology, Center for Biomedical Education and Research (ZBAF), School of Medicine, Faculty of Health, Witten/Herdecke University, Witten, Germany.
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12
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Zheng J, Shi W, Yang Z, Chen J, Qi A, Yang Y, Deng Y, Yang D, Song N, Song B, Luo D. RIG-I-like receptors: Molecular mechanism of activation and signaling. Adv Immunol 2023; 158:1-74. [PMID: 37453753 DOI: 10.1016/bs.ai.2023.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
During RNA viral infection, RIG-I-like receptors (RLRs) recognize the intracellular pathogenic RNA species derived from viral replication and activate antiviral innate immune response by stimulating type 1 interferon expression. Three RLR members, namely, RIG-I, MDA5, and LGP2 are homologous and belong to a subgroup of superfamily 2 Helicase/ATPase that is preferably activated by double-stranded RNA. RLRs are significantly different in gene architecture, RNA ligand preference, activation, and molecular functions. As switchable macromolecular sensors, RLRs' activities are tightly regulated by RNA ligands, ATP, posttranslational modifications, and cellular cofactors. We provide a comprehensive review of the structure and function of the RLRs and summarize the molecular understanding of sensing and signaling events during the RLR activation process. The key roles RLR signaling play in both anti-infection and immune disease conditions highlight the therapeutic potential in targeting this important molecular pathway.
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Affiliation(s)
- Jie Zheng
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, China; Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.
| | - Wenjia Shi
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ziqun Yang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Jin Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ao Qi
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, China; Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Yulin Yang
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, China; Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ying Deng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Dongyuan Yang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ning Song
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Bin Song
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Dahai Luo
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore; NTU Institute of Structural Biology, Nanyang Technological University, Singapore, Singapore.
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13
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Li J, Hui Y, Xu Z, Tan J, Yin K, Kuang L, Tang Y, Wei J, Zhong Q, Zheng T. Non-canonical function of DPP4 promotes cognitive impairment through ERp29-associated mitochondrial calcium overload in diabetes. iScience 2023; 26:106271. [PMID: 36936785 PMCID: PMC10014273 DOI: 10.1016/j.isci.2023.106271] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 01/15/2023] [Accepted: 02/19/2023] [Indexed: 03/02/2023] Open
Abstract
DPP4 has been shown to induce diabetes-associated mitochondrial dysfunction and cognitive impairment through its non-canonical function. Here, we report that enhanced DPP4 expression in diabetes contributes to IP3R2-mediated mitochondria-associated ER membrane (MAM) formation, mitochondria calcium overload, and cognitive impairment, and its knockdown showed opposite effects. Mechanistically, DPP4 binds to PAR2 in hippocampal neurons and activates ERK1/2/CEBPB signaling, which upregulates ERp29 expression and promotes its binding to IP3R2, thereby inhibiting IP3R2 degradation and promoting MAM formation, mitochondria calcium overload, and cognitive impairment. Meanwhile, targeting DPP4-mediated PAR2/ERK1/2/CEBPB/ERp29 signaling achieved satisfactory therapeutic effects on MAM formation, mitochondria calcium overload, and cognitive impairment. Notably, DPP4 activates this pathway in an enzymatic activity-independent manner, suggesting the non-canonical role of DPP4 in the pathogenesis of mitochondria calcium overload and cognitive impairment in diabetes. Together, these results identify DPP4-mediated PAR2/ERK1/2/CEBPB/ERp29 signaling as a promising therapeutic target for the treatment of cognitive impairment in type 2 diabetes.
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Affiliation(s)
- Jiaxiu Li
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Ya Hui
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Zhiqiang Xu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Jie Tan
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Kai Yin
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Liuyu Kuang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Yunyun Tang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Junjie Wei
- Lingui Clinical Medical College, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Qiongsui Zhong
- Lingui Clinical Medical College, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
| | - Tianpeng Zheng
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Diabetic Systems Medicine, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541199, P. R. China
- Corresponding author
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14
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Ahmed D, Al-Daraawi M, Cassol E. Innate sensing and cellular metabolism: role in fine tuning antiviral immune responses. J Leukoc Biol 2023; 113:164-190. [PMID: 36822175 DOI: 10.1093/jleuko/qiac011] [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: 06/12/2022] [Indexed: 01/19/2023] Open
Abstract
Several studies over the last decade have identified intimate links between cellular metabolism and macrophage function. Metabolism has been shown to both drive and regulate macrophage function by producing bioenergetic and biosynthetic precursors as well as metabolites (and other bioactive molecules) that regulate gene expression and signal transduction. Many studies have focused on lipopolysaccharide-induced reprogramming, assuming that it is representative of most inflammatory responses. However, emerging evidence suggests that diverse pathogen-associated molecular patterns (PAMPs) are associated with unique metabolic profiles, which may drive pathogen specific immune responses. Further, these metabolic pathways and processes may act as a rheostat to regulate the magnitude of an inflammatory response based on the biochemical features of the local microenvironment. In this review, we will discuss recent work examining the relationship between cellular metabolism and macrophage responses to viral PAMPs and describe how these processes differ from lipopolysaccharide-associated responses. We will also discuss how an improved understanding of the specificity of these processes may offer new insights to fine-tune macrophage function during viral infections or when using viral PAMPs as therapeutics.
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Affiliation(s)
- Duale Ahmed
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada.,Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Malak Al-Daraawi
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada
| | - Edana Cassol
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada.,Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Ontario, Canada
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15
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Guo Y, Lin P, Hua Y, Wang C. TRIM31: A molecule with a dual role in cancer. Front Oncol 2022; 12:1047177. [PMID: 36620540 PMCID: PMC9815508 DOI: 10.3389/fonc.2022.1047177] [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: 09/17/2022] [Accepted: 11/23/2022] [Indexed: 12/24/2022] Open
Abstract
Tripartite motif (TRIM) 31 is a new member of the TRIM family and functions as an E3 ubiquitin ligase. Abnormal TRIM31 expression leads to a variety of pathological conditions, such as cancer, innate immunity diseases, sepsis-induced myocardial dysfunction, cerebral ischemic injury, nonalcoholic fatty liver disease and hypertensive nephropathy. In this review, we comprehensively overview the structure, expression and regulation of TRIM31 in cancer. Moreover, we discuss the dual role of TRIM31 in human cancer, and this dual role may be linked to its involvement in the selective regulation of several pivotal cellular signaling pathways: the p53 tumor suppressor, mTORC1, PI3K-AKT, NF-κB and Wnt/β-catenin pathways. In addition, we also discuss the emerging role of TRIM31 in innate immunity, autophagy and its growing sphere of influence across multiple human pathologies. Finally, a better understanding of the dual role of TRIM31 in cancer may provide new therapeutic strategies aimed at inhibiting the cancer-promoting effects of TRIM31 without affecting its tumor suppressor effects.
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Affiliation(s)
- Yafei Guo
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China,The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children’s Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ping Lin
- Lab of Experimental Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China,*Correspondence: Ping Lin, ; Yimin Hua, ; Chuan Wang,
| | - Yimin Hua
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China,The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children’s Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China,*Correspondence: Ping Lin, ; Yimin Hua, ; Chuan Wang,
| | - Chuan Wang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China,The Cardiac Development and Early Intervention Unit, West China Institute of Women and Children’s Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China,*Correspondence: Ping Lin, ; Yimin Hua, ; Chuan Wang,
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16
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Mao S, Ren J, Xu Y, Lin J, Pan C, Meng Y, Xu N. Studies in the antiviral molecular mechanisms of 25-hydroxycholesterol: Disturbing cholesterol homeostasis and post-translational modification of proteins. Eur J Pharmacol 2022; 926:175033. [PMID: 35598845 PMCID: PMC9119167 DOI: 10.1016/j.ejphar.2022.175033] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 05/04/2022] [Accepted: 05/11/2022] [Indexed: 02/08/2023]
Abstract
Efficient antiviral drug discovery has been a pressing issue of global public health concern since the outbreak of coronavirus disease 2019. In recent years, numerous in vitro and in vivo studies have shown that 25-hydroxycholesterol (25HC), a reactive oxysterol catalyzed by cholesterol-25-hydroxylase, exerts broad-spectrum antiviral activity with high efficiency and low toxicity. 25HC restricts viral internalization and disturbs the maturity of viral proteins using multiple mechanisms. First, 25HC reduces lipid rafts and cholesterol in the cytomembrane by inhibiting sterol-regulatory element binding proteins-2, stimulating liver X receptor, and activating Acyl-coenzyme A: cholesterol acyl-transferase. Second, 25HC impairs endosomal pathways by restricting the function of oxysterol-binding protein or Niemann-pick protein C1, causing the virus to fail to release nucleic acid. Third, 25HC disturbs the prenylation of viral proteins by suppressing the sterol-regulatory element binding protein pathway and glycosylation by increasing the sensitivity of glycans to endoglycosidase. This paper reviews previous studies on the antiviral activity of 25HC in order to fully understand its role in innate immunity and how it may contribute to the development of urgently needed broad-spectrum antiviral drugs.
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17
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Li W, Li F, Zhang X, Lin HK, Xu C. Insights into the post-translational modification and its emerging role in shaping the tumor microenvironment. Signal Transduct Target Ther 2021; 6:422. [PMID: 34924561 PMCID: PMC8685280 DOI: 10.1038/s41392-021-00825-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 11/02/2021] [Accepted: 11/05/2021] [Indexed: 12/11/2022] Open
Abstract
More and more in-depth studies have revealed that the occurrence and development of tumors depend on gene mutation and tumor heterogeneity. The most important manifestation of tumor heterogeneity is the dynamic change of tumor microenvironment (TME) heterogeneity. This depends not only on the tumor cells themselves in the microenvironment where the infiltrating immune cells and matrix together forming an antitumor and/or pro-tumor network. TME has resulted in novel therapeutic interventions as a place beyond tumor beds. The malignant cancer cells, tumor infiltrate immune cells, angiogenic vascular cells, lymphatic endothelial cells, cancer-associated fibroblastic cells, and the released factors including intracellular metabolites, hormonal signals and inflammatory mediators all contribute actively to cancer progression. Protein post-translational modification (PTM) is often regarded as a degradative mechanism in protein destruction or turnover to maintain physiological homeostasis. Advances in quantitative transcriptomics, proteomics, and nuclease-based gene editing are now paving the global ways for exploring PTMs. In this review, we focus on recent developments in the PTM area and speculate on their importance as a critical functional readout for the regulation of TME. A wealth of information has been emerging to prove useful in the search for conventional therapies and the development of global therapeutic strategies.
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Affiliation(s)
- Wen Li
- grid.54549.390000 0004 0369 4060Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, 610042 Chengdu, P. R. China
| | - Feifei Li
- grid.54549.390000 0004 0369 4060Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, 610042 Chengdu, P. R. China ,grid.256607.00000 0004 1798 2653Guangxi Collaborative Innovation Center for Biomedicine (Guangxi-ASEAN Collaborative Innovation Center for Major Disease Prevention and Treatment), Guangxi Medical University, 530021 Nanning, Guangxi China
| | - Xia Zhang
- grid.410570.70000 0004 1760 6682Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), 400038 Chongqing, China
| | - Hui-Kuan Lin
- grid.241167.70000 0001 2185 3318Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC 27101 USA
| | - Chuan Xu
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, 610042, Chengdu, P. R. China. .,Department of Cancer Biology, Wake Forest Baptist Medical Center, Wake Forest University, Winston Salem, NC, 27101, USA.
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18
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The A179L Gene of African Swine Fever Virus Suppresses Virus-Induced Apoptosis but Enhances Necroptosis. Viruses 2021; 13:v13122490. [PMID: 34960759 PMCID: PMC8708531 DOI: 10.3390/v13122490] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/09/2021] [Accepted: 12/09/2021] [Indexed: 11/16/2022] Open
Abstract
A179L, a non-structural protein of African swine fever virus (ASFV), is capable of suppressing apoptosis by binding the BH3 domain of the pro-apoptotic Bcl-2 family proteins via a conserved ligand binding groove. Our present study aims to determine if A179L affects necroptosis, the second form of programmed cell death induced by DNA and RNA viruses. Here we report that A179L enhanced TNF-α or TSZ (TNF-α, Smac, and Z-Vad)-induced receptor-interacting protein kinase (RIPK1), RIPK3, and mixed lineage kinase domain like peudokinase (MLKL) phosphorylation in L929 cells, a murine fibrosarcoma cell line. Sytox green staining revealed that A179L significantly increased the number of necroptotic cells in TSZ-treated L929 cells. Using human herpes simplex virus 1 (HSV-1) to model DNA virus-induced cell death, we found that A179L blocked the HSV-1-induced cleavage of poly (ADP-ribose) polymerase (PARP), caspase 8, and caspase 3 and decreased the number of apoptotic cells in HSV-1-infected IPEC-DQ cells, a porcine intestinal epithelial cell line. In contrast, A179L transfection of IPEC-DQ cells enhanced HSV-1-induced RIPK1, RIPK3, and MLKL phosphorylation and increased the number of necroptotic cells. Consistently, A179L also suppressed apoptosis but enhanced the necroptosis induced by two RNA viruses, Sendai virus (SeV) and influenza virus (IAV). Our study uncovers a previously unrecognized role of A179L in regulating cell death and suggests that A179L re-directs its anti-apoptotic activity to necroptosis.
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19
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Lin H. Protein cysteine palmitoylation in immunity and inflammation. FEBS J 2021; 288:7043-7059. [PMID: 33506611 PMCID: PMC8872633 DOI: 10.1111/febs.15728] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/24/2020] [Accepted: 01/25/2021] [Indexed: 07/24/2023]
Abstract
Protein cysteine palmitoylation, or S-palmitoylation, has been known for about 40 years, and thousands of proteins in humans are known to be modified. Because of the large number of proteins modified, the importance and physiological functions of S-palmitoylation are enormous. However, most of the known physiological functions of S-palmitoylation can be broadly classified into two categories, neurological or immunological. This review provides a summary on the function of S-palmitoylation from the immunological perspective. Several important immune signaling pathways are discussed, including STING, NOD1/2, JAK-STAT in cytokine signaling, T-cell receptor signaling, chemotactic GPCR signaling, apoptosis, phagocytosis, and endothelial and epithelial integrity. This review is not meant to be comprehensive, but rather focuses on specific examples to highlight the versatility of palmitoylation in regulating immune signaling, as well as the potential and challenges of targeting palmitoylation to treat immune diseases.
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Affiliation(s)
- Hening Lin
- Howard Hughes Medical Institute, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
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20
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Zhu J, Li X, Sun X, Zhou Z, Cai X, Liu X, Wang J, Xiao W. Zebrafish prmt2 Attenuates Antiviral Innate Immunity by Targeting traf6. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:2570-2580. [PMID: 34654690 DOI: 10.4049/jimmunol.2100627] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 09/16/2021] [Indexed: 12/23/2022]
Abstract
TNFR-associated factor 6 (TRAF6) not only recruits TBK1/IKKε to MAVS upon virus infection but also catalyzes K63-linked polyubiquitination on substrate or itself, which is critical for NEMO-dependent and -independent TBK1/IKKε activation, leading to the production of type I IFNs. The regulation at the TRAF6 level could affect the activation of antiviral innate immunity. In this study, we demonstrate that zebrafish prmt2, a type I arginine methyltransferase, attenuates traf6-mediated antiviral response. Prmt2 binds to the C terminus of traf6 to catalyze arginine asymmetric dimethylation of traf6 at arginine 100, preventing its K63-linked autoubiquitination, which results in the suppression of traf6 activation. In addition, it seems that the N terminus of prmt2 competes with mavs for traf6 binding and prevents the recruitment of tbk1/ikkε to mavs. By zebrafish model, we show that loss of prmt2 promotes the survival ratio of zebrafish larvae after challenge with spring viremia of carp virus. Therefore, we reveal, to our knowledge, a novel function of prmt2 in the negative regulation of antiviral innate immunity by targeting traf6.
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Affiliation(s)
- Junji Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xiong Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xueyi Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Ziwen Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xiaolian Cai
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xing Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China.,The Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan, People's Republic of China.,The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, People's Republic of China; and
| | - Jing Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China.,The Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan, People's Republic of China.,The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, People's Republic of China; and
| | - Wuhan Xiao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, People's Republic of China; .,University of Chinese Academy of Sciences, Beijing, People's Republic of China.,The Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan, People's Republic of China.,The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, People's Republic of China; and.,Hubei Hongshan Laboratory, Wuhan, People's Republic of China
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21
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Chathuranga K, Weerawardhana A, Dodantenna N, Lee JS. Regulation of antiviral innate immune signaling and viral evasion following viral genome sensing. Exp Mol Med 2021; 53:1647-1668. [PMID: 34782737 PMCID: PMC8592830 DOI: 10.1038/s12276-021-00691-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 06/15/2021] [Accepted: 09/07/2021] [Indexed: 02/07/2023] Open
Abstract
A harmonized balance between positive and negative regulation of pattern recognition receptor (PRR)-initiated immune responses is required to achieve the most favorable outcome for the host. This balance is crucial because it must not only ensure activation of the first line of defense against viral infection but also prevent inappropriate immune activation, which results in autoimmune diseases. Recent studies have shown how signal transduction pathways initiated by PRRs are positively and negatively regulated by diverse modulators to maintain host immune homeostasis. However, viruses have developed strategies to subvert the host antiviral response and establish infection. Viruses have evolved numerous genes encoding immunomodulatory proteins that antagonize the host immune system. This review focuses on the current state of knowledge regarding key host factors that regulate innate immune signaling molecules upon viral infection and discusses evidence showing how specific viral proteins counteract antiviral responses via immunomodulatory strategies.
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Affiliation(s)
- Kiramage Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, Korea
| | - Asela Weerawardhana
- College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, Korea
| | - Niranjan Dodantenna
- College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, Korea
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, Korea.
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22
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Zhu J, Li X, Cai X, Zha H, Zhou Z, Sun X, Rong F, Tang J, Zhu C, Liu X, Fan S, Wang J, Liao Q, Ouyang G, Xiao W. Arginine monomethylation by PRMT7 controls MAVS-mediated antiviral innate immunity. Mol Cell 2021; 81:3171-3186.e8. [PMID: 34171297 DOI: 10.1016/j.molcel.2021.06.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/10/2021] [Accepted: 06/02/2021] [Indexed: 12/14/2022]
Abstract
Accurate control of innate immune responses is required to eliminate invading pathogens and simultaneously avoid autoinflammation and autoimmune diseases. Here, we demonstrate that arginine monomethylation precisely regulates the mitochondrial antiviral-signaling protein (MAVS)-mediated antiviral response. Protein arginine methyltransferase 7 (PRMT7) forms aggregates to catalyze MAVS monomethylation at arginine residue 52 (R52), attenuating its binding to TRIM31 and RIG-I, which leads to the suppression of MAVS aggregation and subsequent activation. Upon virus infection, aggregated PRMT7 is disabled in a timely manner due to automethylation at arginine residue 32 (R32), and SMURF1 is recruited to PRMT7 by MAVS to induce proteasomal degradation of PRMT7, resulting in the relief of PRMT7 suppression of MAVS activation. Therefore, we not only reveal that arginine monomethylation by PRMT7 negatively regulates MAVS-mediated antiviral signaling in vitro and in vivo but also uncover a mechanism by which PRMT7 is tightly controlled to ensure the timely activation of antiviral defense.
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Affiliation(s)
- Junji Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xiong Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xiaolian Cai
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Huangyuan Zha
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China
| | - Ziwen Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xueyi Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Fangjing Rong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Jinghua Tang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Chunchun Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xing Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; The Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan 430072, P.R. China; The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan 430072, P.R. China
| | - Sijia Fan
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Jing Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; The Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan 430072, P.R. China; The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan 430072, P.R. China
| | - Qian Liao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Gang Ouyang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; The Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan 430072, P.R. China; The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan 430072, P.R. China
| | - Wuhan Xiao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, P.R. China; The Key Laboratory of Aquaculture Disease Control, Ministry of Agriculture, Wuhan 430072, P.R. China; University of Chinese Academy of Sciences, Beijing 100049, P.R. China; The Innovation of Seed Design, Chinese Academy of Sciences, Wuhan 430072, P.R. China; Hubei Hongshan Laboratory, Wuhan 430070, P.R. China.
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23
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Jia X, Zhao C, Zhao W. Emerging Roles of MHC Class I Region-Encoded E3 Ubiquitin Ligases in Innate Immunity. Front Immunol 2021; 12:687102. [PMID: 34177938 PMCID: PMC8222901 DOI: 10.3389/fimmu.2021.687102] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/27/2021] [Indexed: 12/15/2022] Open
Abstract
The major histocompatibility complex (MHC) class I (MHC-I) region contains a multitude of genes relevant to immune response. Multiple E3 ubiquitin ligase genes, including tripartite motif 10 (TRIM10), TRIM15, TRIM26, TRIM27, TRIM31, TRIM38, TRIM39, TRIM40, and RING finger protein 39 (RNF39), are organized in a tight cluster, and an additional two TRIM genes (namely TRIM38 and TRIM27) telomeric of the cluster within the MHC-I region. The E3 ubiquitin ligases encoded by these genes possess important roles in controlling the intensity of innate immune responses. In this review, we discuss the E3 ubiquitin ligases encoded within the MHC-I region, highlight their regulatory roles in innate immunity, and outline their potential functions in infection, inflammatory and autoimmune diseases.
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Affiliation(s)
- Xiuzhi Jia
- Department of Pathogenic Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chunyuan Zhao
- Department of Pathogenic Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei Zhao
- Department of Pathogenic Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
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24
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Hou J, Han L, Zhao Z, Liu H, Zhang L, Ma C, Yi F, Liu B, Zheng Y, Gao C. USP18 positively regulates innate antiviral immunity by promoting K63-linked polyubiquitination of MAVS. Nat Commun 2021; 12:2970. [PMID: 34016972 PMCID: PMC8137702 DOI: 10.1038/s41467-021-23219-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 04/17/2021] [Indexed: 11/13/2022] Open
Abstract
Activation of MAVS, an adaptor molecule in Rig-I-like receptor (RLR) signaling, is indispensable for antiviral immunity, yet the molecular mechanisms modulating MAVS activation are not completely understood. Ubiquitination has a central function in regulating the activity of MAVS. Here, we demonstrate that a mitochondria-localized deubiquitinase USP18 specifically interacts with MAVS, promotes K63-linked polyubiquitination and subsequent aggregation of MAVS. USP18 upregulates the expression and production of type I interferon following infection with Sendai virus (SeV) or Encephalomyocarditis virus (EMCV). Mice with a deficiency of USP18 are more susceptible to RNA virus infection. USP18 functions as a scaffold protein to facilitate the re-localization of TRIM31 and enhances the interaction between TRIM31 and MAVS in mitochondria. Our results indicate that USP18 functions as a post-translational modulator of MAVS-mediated antiviral signaling. Ubiquitination has an important function in the regulation of antiviral immunity involving the signalling molecule MAVS. Here the authors investigate deubiquitinating enzymes and show USP18 regulates MAVS mediated antiviral signalling through modulating the ubiquitination of MAVS via promotion of interaction between MAVS and TRIM31.
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Affiliation(s)
- Jinxiu Hou
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Lulu Han
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Ze Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Huiqing Liu
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Lei Zhang
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Chunhong Ma
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Fan Yi
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Bingyu Liu
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China
| | - Yi Zheng
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China.
| | - Chengjiang Gao
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, P. R. China.
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25
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Swan G, Geng J, Park E, Ding Q, Zhou J, Walcott C, Zhang JJ, Huang HI, Hammer GE, Wang D. A Requirement of Protein Geranylgeranylation for Chemokine Receptor Signaling and Th17 Cell Function in an Animal Model of Multiple Sclerosis. Front Immunol 2021; 12:641188. [PMID: 33828552 PMCID: PMC8019753 DOI: 10.3389/fimmu.2021.641188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/24/2021] [Indexed: 12/05/2022] Open
Abstract
Precisely controlled lymphocyte migration is critically required for immune surveillance and successful immune responses. Lymphocyte migration is strictly regulated by chemokines and chemokine receptors. Here we show that protein geranylgeranylation, a form of post-translational protein lipid modification, is required for chemokine receptor-proximal signaling. Mature thymocytes deficient for protein geranylgeranylation are impaired for thymus egress. Circulating mature T cells lacking protein geranylgeranylation fail to home to secondary lymphoid organs or to transmigrate in response to chemokines in vitro. Mechanistically, protein geranylgeranylation modifies the γ-subunits of the heterotrimeric small GTPases that are essential for chemokine receptor signaling. In addition, protein geranylgeranylation also promotes the differentiation of IL-17-producing T helper cells while inhibiting the differentiation of Foxp3+ regulatory T cells. Finally, mice with T cell lineage-specific deficiency of protein geranylgeranylation are resistant to experimental autoimmune encephalomyelitis induction. This study elucidated a critical role of protein geranylgeranylation in regulating T lymphocyte migration and function.
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Affiliation(s)
- Gregory Swan
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Jia Geng
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Eunchong Park
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Quanquan Ding
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - John Zhou
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Ciana Walcott
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Junyi J. Zhang
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Hsin-I Huang
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Gianna Elena Hammer
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Donghai Wang
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
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26
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Zhou L, He R, Fang P, Li M, Yu H, Wang Q, Yu Y, Wang F, Zhang Y, Chen A, Peng N, Lin Y, Zhang R, Trilling M, Broering R, Lu M, Zhu Y, Liu S. Hepatitis B virus rigs the cellular metabolome to avoid innate immune recognition. Nat Commun 2021; 12:98. [PMID: 33397935 PMCID: PMC7782485 DOI: 10.1038/s41467-020-20316-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 11/23/2020] [Indexed: 02/06/2023] Open
Abstract
Glucose metabolism and innate immunity evolved side-by-side. It is unclear if and how the two systems interact with each other during hepatitis B virus (HBV) infections and, if so, which mechanisms are involved. Here, we report that HBV activates glycolysis to impede retinoic acid-inducible gene I (RIG-I)-induced interferon production. We demonstrate that HBV sequesters MAVS from RIG-I by forming a ternary complex including hexokinase (HK). Using a series of pharmacological and genetic approaches, we provide in vitro and in vivo evidence indicating that HBV suppresses RLR signaling via lactate dehydrogenase-A-dependent lactate production. Lactate directly binds MAVS preventing its aggregation and mitochondrial localization during HBV infection. Therefore, we show that HK2 and glycolysis-derived lactate have important functions in the immune escape of HBV and that energy metabolism regulates innate immunity during HBV infection.
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Affiliation(s)
- Li Zhou
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Rui He
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Peining Fang
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Mengqi Li
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Haisheng Yu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Qiming Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Yi Yu
- The Key Laboratory of Biosystems Homeostasis and Protection of the Ministry of Education and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Fubing Wang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yi Zhang
- Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, College of Food and Pharmaceutical Engineering, Hubei University of Technology, Wuhan, 430068, China
| | - Aidong Chen
- Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Nanfang Peng
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yong Lin
- The Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Rui Zhang
- Department of Hepato-Pancreato-Biliary Surgery, SunYat-sen Memorial Hospital, SunYat-sen University, Guangzhou, 510120, China
| | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, 45122, Germany
| | - Ruth Broering
- Department of Gastroenterology and Hepatology, University Hospital Essen, University of Duisburg-Essen, Essen, 45122, Germany
| | - Mengji Lu
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, 45122, Germany
| | - Ying Zhu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Shi Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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27
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Role of Host-Mediated Post-Translational Modifications (PTMs) in RNA Virus Pathogenesis. Int J Mol Sci 2020; 22:ijms22010323. [PMID: 33396899 PMCID: PMC7796338 DOI: 10.3390/ijms22010323] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022] Open
Abstract
Being opportunistic intracellular pathogens, viruses are dependent on the host for their replication. They hijack host cellular machinery for their replication and survival by targeting crucial cellular physiological pathways, including transcription, translation, immune pathways, and apoptosis. Immediately after translation, the host and viral proteins undergo a process called post-translational modification (PTM). PTMs of proteins involves the attachment of small proteins, carbohydrates/lipids, or chemical groups to the proteins and are crucial for the proteins’ functioning. During viral infection, host proteins utilize PTMs to control the virus replication, using strategies like activating immune response pathways, inhibiting viral protein synthesis, and ultimately eliminating the virus from the host. PTM of viral proteins increases solubility, enhances antigenicity and virulence properties. However, RNA viruses are devoid of enzymes capable of introducing PTMs to their proteins. Hence, they utilize the host PTM machinery to promote their survival. Proteins from viruses belonging to the family: Togaviridae, Flaviviridae, Retroviridae, and Coronaviridae such as chikungunya, dengue, zika, HIV, and coronavirus are a few that are well-known to be modified. This review discusses various host and virus-mediated PTMs that play a role in the outcome during the infection.
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28
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Zhang J, Peng Q, Zhao W, Sun W, Yang J, Liu N. Proteomics in Influenza Research: The Emerging Role of Posttranslational Modifications. J Proteome Res 2020; 20:110-121. [PMID: 33348980 DOI: 10.1021/acs.jproteome.0c00778] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Influenza viruses continue evolving and have the ability to cause a global pandemic, so it is very important to elucidate its pathogenesis and find new treatment methods. In recent years, proteomics has made important contributions to describing the dynamic interaction between influenza viruses and their hosts, especially in posttranslational regulation of a variety of key biological processes. Protein posttranslational modifications (PTMs) increase the diversity of functionality of the organismal proteome and affect almost all aspects of pathogen biology, primarily by regulating the structure, function, and localization of the modified proteins. Considerable technical achievements in mass spectrometry-based proteomics have been made in a large number of proteome-wide surveys of PTMs in many different organisms. Herein we specifically focus on the proteomic studies regarding a variety of PTMs that occur in both the influenza viruses, mainly influenza A viruses (IAVs), and their hosts, including phosphorylation, ubiquitination and ubiquitin-like modification, glycosylation, methylation, acetylation, and some types of acylation. Integration of these data sets provides a unique scenery of the global regulation and interplay of different PTMs during the interaction between IAVs and their hosts. Various techniques used to globally profiling these PTMs, mostly MS-based approaches, are discussed regarding their increasing roles in mechanical regulation of interaction between influenza viruses and their hosts.
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Affiliation(s)
- Jinming Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, Central Laboratory, Jilin University Second Hospital, Jilin University, Changchun 130062, PR China
| | - Qisheng Peng
- Key Laboratory of Zoonosis Research, Ministry of Education, Central Laboratory, Jilin University Second Hospital, Jilin University, Changchun 130062, PR China
| | - Weizheng Zhao
- Clinical Medical College, Jilin University, Changchun 130021, PR China
| | - Wanchun Sun
- Key Laboratory of Zoonosis Research, Ministry of Education, Central Laboratory, Jilin University Second Hospital, Jilin University, Changchun 130062, PR China
| | - Jingbo Yang
- Key Laboratory of Zoonosis Research, Ministry of Education, Central Laboratory, Jilin University Second Hospital, Jilin University, Changchun 130062, PR China
| | - Ning Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Central Laboratory, Jilin University Second Hospital, Jilin University, Changchun 130062, PR China
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29
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Yi L, Zheng C. The emerging roles of ZDHHCs-mediated protein palmitoylation in the antiviral innate immune responses. Crit Rev Microbiol 2020; 47:34-43. [PMID: 33100085 DOI: 10.1080/1040841x.2020.1835821] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Post-translational modifications (PTMs) play a pivotal role in expanding functional protein diversity. During viral infection, pathogen-associated molecular patterns derived from viruses are recognized by pattern recognition receptors present in the membrane surface and the cytoplasm of infected cells, which subsequently induces the antiviral innate immunity to protect the host from the invading viruses. Fatty acylation modification is identified as a post-translation lipid modification process. Mounting evidence is presented that lipid modification functions as a novel regulatory mechanism of antiviral innate immunity. In mammalian cells, DHHC (Asp-His-His-Cys) domain is indispensable for most of the palmitoylation modification, which belongs to fatty acylation. ZDHHC family proteins are composed of 23 members in human cells. In this review, we will summarize the recent findings of the regulatory mechanism of the palmitoylation in the process of host antiviral innate immunity against viruses.
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Affiliation(s)
- Li Yi
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Chunfu Zheng
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China.,Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
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Chitalia VC, Munawar AH. A painful lesson from the COVID-19 pandemic: the need for broad-spectrum, host-directed antivirals. J Transl Med 2020; 18:390. [PMID: 33059719 PMCID: PMC7558548 DOI: 10.1186/s12967-020-02476-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 08/02/2020] [Indexed: 02/06/2023] Open
Abstract
While the COVID-19 pandemic has spurred intense research and collaborative discovery worldwide, the development of a safe, effective, and targeted antiviral from the ground up is time intensive. Therefore, most antiviral discovery efforts are focused on the re-purposing of clinical stage or approved drugs. While emerging data on drugs undergoing COVID-19 repurpose are intriguing, there is an undeniable need to develop broad-spectrum antivirals to prevent future viral pandemics of unknown origin. The ideal drug to curtail rapid viral spread would be a broad-acting agent with activity against a wide range of viruses. Such a drug would work by modulating host-proteins that are often shared by multiple virus families thereby enabling preemptive drug development and therefore rapid deployment at the onset of an outbreak. Targeting host-pathways and cellular proteins that are hijacked by viruses can potentially offer broad-spectrum targets for the development of future antiviral drugs. Such host-directed antivirals are also likely to offer a higher barrier to the development and selection of drug resistant mutations. Given that most approved antivirals do not target host-proteins, we reinforce the need for the development of such antivirals that can be used in pre- and post-exposure populations.
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Affiliation(s)
- Vipul C Chitalia
- Boston University Medical Center, 625 Albany Street, Boston, MA, USA
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ali H Munawar
- Bisect Therapeutics, Inc., 45 Dan Road, Canton, MA, USA.
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Kazimirskii AN, Salmasi JM, Poryadin GV. Antiviral system of innate immunity: COVID-19 pathogenesis and treatment. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2020. [DOI: 10.24075/brsmu.2020.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Antiviral system of innate immunity includes two main components: the mitochondrial antiviral sensor — the mitochondrial outer membrane protein and peripheral blood neutrophils capable of forming neutrophilic extracellular traps. Depending on the activation pathway of the mitochondrial antiviral sensor (MAVS), two possible variants of cells death, apoptosis or cellular degeneration with necrotic changes, develop during cell infection with an RNA-containing virus. The development of virus-induced apoptosis of infected cells causes the formation of neutrophilic extracellular traps, the secretion of inflammatory cytokines, ROS generation, tissue damage, hemocoagulation and the development of an acute inflammatory process with the development of COVID-19 pneumonia. Violation of the prion-like reaction of MAVS in response to viral infection of the cell triggers an alternative pathway for activating autophagy. Cells under conditions of prolonged activation of autophagy experience necrotic changes and are eliminated from the organism by monocytes/macrophages that secrete anti-inflammatory cytokines. This type of reaction of the antiviral system of innate immunity corresponds to the asymptomatic course of the disease. From the most significant aspects of the pathogenesis of the coronavirus infection COVID-19 given, recommendations for the prophylactic treatment of this dangerous disease follow. The proposed treatment can significantly decrease the severity of COVID-19 disease and reduce mortality.
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Affiliation(s)
- AN Kazimirskii
- Pirogov Russian National Research Medical University. Moscow, Russia
| | - JM Salmasi
- Pirogov Russian National Research Medical University. Moscow, Russia
| | - GV Poryadin
- Pirogov Russian National Research Medical University. Moscow, Russia
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32
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Xie X, Cao Y, Dai Y, Chen Z, Wei J, Tan Y, Wu H, Feng H. Black carp RIPK1 negatively regulates MAVS-mediated antiviral signaling during the innate immune activation. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 109:103726. [PMID: 32376280 DOI: 10.1016/j.dci.2020.103726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/30/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Receptor-interacting serine/threonine protein kinase 1 (RIPK1) is an important regulator of necroptosis and involved in innate immune response in human and mammal; however, its function in teleost fish mains largely unknown. In this paper, the RIPK1 homologue of black carp (Mylopharyngodon piceus) has been cloned and characterized to explore its role in immunity. Black carp RIPK1 (bcRIPK1) possesses the similar structure to its mammalian counterpart, which has been identified as a cytosolic protein by immunofluorescence staining. Overexpressed bcRIPK1 in host cells led to the decreased transcription of interferon (IFN) and interferon stimulated genes, and exogenous bcRIPK1 in EPC cells led to the decreased transcription of interferon promoters in reporter assay. Our previous study has identified that black carp MAVS (bcMAVS) functions as an antiviral adaptor protein against both grass carp reovirus (GCRV) and spring viremia of carp virus (SVCV). The reporter assay showed that the IFN-inducing ability of bcMAVS was dampened by bcRIPK1 and the plaque assay demonstrated that the antiviral activity of bcMAVS was inhibited by bcRIPK1. The immunofluorescent staining and co-immunoprecipitation identified the interaction between these two molecules. Thus, the data generated in this paper support the conclusion that bcRIPK1 interacts with bcMAVS and negatively regulates bcMAVS-mediated antiviral signaling.
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Affiliation(s)
- Xinchi Xie
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Yingyi Cao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Yuhan Dai
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Zhaoyuan Chen
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Jing Wei
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Yaqi Tan
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Hui Wu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China.
| | - Hao Feng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China.
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33
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Bartok E, Hartmann G. Immune Sensing Mechanisms that Discriminate Self from Altered Self and Foreign Nucleic Acids. Immunity 2020; 53:54-77. [PMID: 32668228 PMCID: PMC7359798 DOI: 10.1016/j.immuni.2020.06.014] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/19/2022]
Abstract
All lifeforms have developed highly sophisticated systems equipped to detect altered self and non-self nucleic acids (NA). In vertebrates, NA-sensing receptors safeguard the integrity of the organism by detecting pathogens, dyshomeostasis and damage, and inducing appropriate responses to eliminate pathogens and reconstitute homeostasis. Effector mechanisms include i) immune signaling, ii) restriction of NA functions such as inhibition of mRNA translation, and iii) cell death pathways. An appropriate effector response is necessary for host defense, but dysregulated NA-sensing can lead to devastating autoimmune and autoinflammatory disease. Their inherent biochemical similarity renders the reliable distinction between self NA under homeostatic conditions and altered or exogenous NA particularly challenging. In this review, we provide an overview of recent progress in our understanding of the closely coordinated and regulated network of innate immune receptors, restriction factors, and nucleases to effectively respond to pathogens and maintain host integrity.
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Affiliation(s)
- Eva Bartok
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Gunther Hartmann
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
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34
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Cheung PHH, Lee TWT, Kew C, Chen H, Yuen KY, Chan CP, Jin DY. Virus subtype-specific suppression of MAVS aggregation and activation by PB1-F2 protein of influenza A (H7N9) virus. PLoS Pathog 2020; 16:e1008611. [PMID: 32511263 PMCID: PMC7302872 DOI: 10.1371/journal.ppat.1008611] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/18/2020] [Accepted: 05/07/2020] [Indexed: 12/15/2022] Open
Abstract
Human infection with avian influenza A (H5N1) and (H7N9) viruses causes severe respiratory diseases. PB1-F2 protein is a critical virulence factor that suppresses early type I interferon response, but the mechanism of its action in relation to high pathogenicity is not well understood. Here we show that PB1-F2 protein of H7N9 virus is a particularly potent suppressor of antiviral signaling through formation of protein aggregates on mitochondria and inhibition of TRIM31-MAVS interaction, leading to prevention of K63-polyubiquitination and aggregation of MAVS. Unaggregated MAVS accumulated on fragmented mitochondria is prone to degradation by both proteasomal and lysosomal pathways. These properties are proprietary to PB1-F2 of H7N9 virus but not shared by its counterpart in WSN virus. A recombinant virus deficient of PB1-F2 of H7N9 induces more interferon β in infected cells. Our findings reveal a subtype-specific mechanism for destabilization of MAVS and suppression of interferon response by PB1-F2 of H7N9 virus. Exactly why avian influenza A (H5N1) and (H7N9) viruses cause severe diseases in humans remains unclear. PB1-F2 protein encoded by influenza A virus is one virulence factor that might make a difference. In this study we show that PB1-F2 protein of H7N9 virus is particularly strong in the suppression of host antiviral defense. This was achieved by inhibiting a key protein in cell signaling named MAVS. PB1-F2 directs MAVS for degradation and prevents MAVS from forming protein aggregates required for full activation. A recombinant virus in which PB1-F2 of H7N9 has been deleted can activate host antiviral response robustly. Our findings reveal a novel mechanism by which PB1-F2 protein of H7N9 virus prevents MAVS aggregation and promotes MAVS degradation, leading to the suppression of host antiviral defense.
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Affiliation(s)
| | | | - Chun Kew
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong
| | - Honglin Chen
- State Key Laboratory for Emerging Infectious Diseases and Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong
| | - Kwok-Yung Yuen
- State Key Laboratory for Emerging Infectious Diseases and Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong
| | - Chi-Ping Chan
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong
- * E-mail: (CPC); (DYJ)
| | - Dong-Yan Jin
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong
- * E-mail: (CPC); (DYJ)
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35
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Liu X, Zhu C, Zha H, Tang J, Rong F, Chen X, Fan S, Xu C, Du J, Zhu J, Wang J, Ouyang G, Yu G, Cai X, Chen Z, Xiao W. SIRT5 impairs aggregation and activation of the signaling adaptor MAVS through catalyzing lysine desuccinylation. EMBO J 2020; 39:e103285. [PMID: 32301534 PMCID: PMC7265249 DOI: 10.15252/embj.2019103285] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 02/29/2020] [Accepted: 03/09/2020] [Indexed: 12/12/2022] Open
Abstract
RLR-mediated type I IFN production plays a pivotal role in innate antiviral immune responses, where the signaling adaptor MAVS is a critical determinant. Here, we show that MAVS is a physiological substrate of SIRT5. Moreover, MAVS is succinylated upon viral challenge, and SIRT5 catalyzes desuccinylation of MAVS. Mass spectrometric analysis indicated that Lysine 7 of MAVS is succinylated. SIRT5-catalyzed desuccinylation of MAVS at Lysine 7 diminishes the formation of MAVS aggregation after viral infection, resulting in the inhibition of MAVS activation and leading to the impairment of type I IFN production and antiviral gene expression. However, the enzyme-deficient mutant of SIRT5 (SIRT5-H158Y) loses its suppressive role on MAVS activation. Furthermore, we show that Sirt5-deficient mice are resistant to viral infection. Our study reveals the critical role of SIRT5 in limiting RLR signaling through desuccinylating MAVS.
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Affiliation(s)
- Xing Liu
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Chunchun Zhu
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Huangyuan Zha
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Jinhua Tang
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Fangjing Rong
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Xiaoyun Chen
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Sijia Fan
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Chenxi Xu
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Juan Du
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Junji Zhu
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Jing Wang
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Gang Ouyang
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Guangqing Yu
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Xiaolian Cai
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Zhu Chen
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Wuhan Xiao
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
- The Key Laboratory of Aquaculture Disease ControlMinistry of AgricultureWuhanChina
- The Key Laboratory of Aquatic Biodiversity and ConservationInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- The Innovation Academy of Seed DesignChinese Academy of SciencesWuhanChina
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36
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Ren Z, Ding T, Zuo Z, Xu Z, Deng J, Wei Z. Regulation of MAVS Expression and Signaling Function in the Antiviral Innate Immune Response. Front Immunol 2020; 11:1030. [PMID: 32536927 PMCID: PMC7267026 DOI: 10.3389/fimmu.2020.01030] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 04/29/2020] [Indexed: 12/13/2022] Open
Abstract
Viral infection is controlled by host innate immune cells that express specialized receptors for viral components. Engagement of these pattern recognition receptors triggers a series of signaling pathways that culminate in the production of antiviral mediators such as type I interferons. Mitochondrial antiviral-signaling protein (MAVS) acts as a central hub for signal transduction initiated by RIG-I-like receptors, which predominantly recognize viral RNA. MAVS expression and function are regulated by both post-transcriptional and post-translational mechanisms, of which ubiquitination and phosphorylation play the most important roles in modulating MAVS function. Increasing evidence indicates that viruses can escape the host antiviral response by interfering at multiple points in the MAVS signaling pathways, thereby maintaining viral survival and replication. This review summarizes recent studies on the mechanisms by which MAVS expression and signaling are normally regulated and on the various strategies employed by viruses to antagonize MAVS activity, which may provide new insights into the design of novel antiviral agents.
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Affiliation(s)
- Zhihua Ren
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Ting Ding
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhicai Zuo
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhiwen Xu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Junliang Deng
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhanyong Wei
- The College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
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37
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Shaping of Innate Immune Response by Fatty Acid Metabolite Palmitate. Cells 2019; 8:cells8121633. [PMID: 31847240 PMCID: PMC6952933 DOI: 10.3390/cells8121633] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/07/2019] [Accepted: 12/12/2019] [Indexed: 12/19/2022] Open
Abstract
Innate immune cells monitor invading pathogens and pose the first-line inflammatory response to coordinate with adaptive immunity for infection removal. Innate immunity also plays pivotal roles in injury-induced tissue remodeling and the maintenance of tissue homeostasis in physiological and pathological conditions. Lipid metabolites are emerging as the key players in the regulation of innate immune responses, and recent work has highlighted the importance of the lipid metabolite palmitate as an essential component in this regulation. Palmitate modulates innate immunity not only by regulating the activation of pattern recognition receptors in local innate immune cells, but also via coordinating immunological activity in inflammatory tissues. Moreover, protein palmitoylation controls various cellular physiological processes. Herein, we review the updated evidence that palmitate catabolism contributes to innate immune cell-mediated inflammatory processes that result in immunometabolic disorders.
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The Cellular Localization of the p42 and p46 Oligoadenylate Synthetase 1 Isoforms and Their Impact on Mitochondrial Respiration. Viruses 2019; 11:v11121122. [PMID: 31817188 PMCID: PMC6950736 DOI: 10.3390/v11121122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/28/2019] [Accepted: 12/02/2019] [Indexed: 12/12/2022] Open
Abstract
The importance of the IFN-induced oligoadenylate synthetase (OAS) proteins and the OAS/RNase L pathway in the innate response against viral pathogens is well-established, however the observed differences in anti-viral activity between the human OAS1 p46 and p42 isoforms are not fully understood. The protein expression of these isoforms is determined by the SNP rs10774671, either being an A or a G allele resulting in expression of either the p42 or the p46 isoform. Using fluorescence microscopy and immunoblot analysis of fractionated cell samples, we show here that the CaaX motif is of key importance to the cellular localization. The OAS1 p42 isoform is mainly located in the cytosol, whereas the p46 isoform with a C-terminal CaaX motif is translocated to membranous organelles, like the mitochondria. We furthermore observed differences between p42 and p46 in their effect on mitochondrial physiology using high resolution respirometry and fluorometry. Overexpression of OAS1 p42 and IFN-β treatment of HeLa cells (AA genotype) resulted in significantly increased respiration, which was not seen with p46 overexpression. The difference in subcellular localization and mitochondrial effect of these two OAS1 isoforms might help to explain the anti-viral mechanisms that differentiate these proteins.
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The role of mitochondria-associated membranes in cellular homeostasis and diseases. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2019; 350:119-196. [PMID: 32138899 DOI: 10.1016/bs.ircmb.2019.11.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mitochondria and endoplasmic reticulum (ER) are fundamental in the control of cell physiology regulating several signal transduction pathways. They continuously communicate exchanging messages in their contact sites called MAMs (mitochondria-associated membranes). MAMs are specific microdomains acting as a platform for the sorting of vital and dangerous signals. In recent years increasing evidence reported that multiple scaffold proteins and regulatory factors localize to this subcellular fraction suggesting MAMs as hotspot signaling domains. In this review we describe the current knowledge about MAMs' dynamics and processes, which provided new correlations between MAMs' dysfunctions and human diseases. In fact, MAMs machinery is strictly connected with several pathologies, like neurodegeneration, diabetes and mainly cancer. These pathological events are characterized by alterations in the normal communication between ER and mitochondria, leading to deep metabolic defects that contribute to the progression of the diseases.
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40
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ER-Mitochondria Communication in Cells of the Innate Immune System. Cells 2019; 8:cells8091088. [PMID: 31540165 PMCID: PMC6770024 DOI: 10.3390/cells8091088] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/11/2019] [Accepted: 09/13/2019] [Indexed: 01/06/2023] Open
Abstract
In cells the interorganelle communication comprises vesicular and non-vesicular mechanisms. Non-vesicular material transfer predominantly takes place at regions of close organelle apposition termed membrane contact sites and is facilitated by a growing number of specialized proteins. Contacts of the endoplasmic reticulum (ER) and mitochondria are now recognized to be essential for diverse biological processes such as calcium homeostasis, phospholipid biosynthesis, apoptosis, and autophagy. In addition to these universal roles, ER-mitochondria communication serves also cell type-specific functions. In this review, we summarize the current knowledge on ER-mitochondria contacts in cells of the innate immune system, especially in macrophages. We discuss ER- mitochondria communication in the context of macrophage fatty acid metabolism linked to inflammatory and ER stress responses, its roles in apoptotic cell engulfment, activation of the inflammasome, and antiviral defense.
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