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Bonacci T, Bolhuis DL, Brown NG, Emanuele MJ. Mechanisms of USP18 deISGylation revealed by comparative analysis with its human paralog USP41. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.28.596309. [PMID: 38853827 PMCID: PMC11160589 DOI: 10.1101/2024.05.28.596309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
The ubiquitin-like protein ISG15 (interferon-stimulated gene 15) regulates the host response to bacterial and viral infections through its conjugation to proteins (ISGylation) following interferon production. ISGylation is antagonized by the highly specific cysteine protease USP18, which is the major deISGylating enzyme. However, mechanisms underlying USP18's extraordinary specificity towards ISG15 remains elusive. Here, we show that USP18 interacts with its paralog USP41, whose catalytic domain shares 97% identity with USP18. However, USP41 does not act as a deISGylase, which led us to perform a comparative analysis to decipher the basis for this difference, revealing molecular determinants of USP18's specificity towards ISG15. We found that USP18 C-terminus, as well as a conserved Leucine at position 198, are essential for its enzymatic activity and likely act as functional surfaces based on AlphaFold predictions. Finally, we propose that USP41 antagonizes conjugation of the understudied ubiquitin-like protein FAT10 (HLA-F adjacent transcript 10) from substrates in a catalytic-independent manner. Altogether, our results offer new insights into USP18's specificity towards ISG15, while identifying USP41 as a negative regulator of FAT10 conjugation.
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Affiliation(s)
- Thomas Bonacci
- Department of Pharmacology and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Derek L Bolhuis
- Department of Biochemistry and Biophysics and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nicholas G Brown
- Department of Pharmacology and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michael J Emanuele
- Department of Pharmacology and Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Ouyang S, Zhu J, Cao Q, Liu J, Zhang Z, Zhang Y, Wu J, Sun S, Fu J, Chen Y, Tong J, Liu Y, Zhang J, Shen F, Li D, Wang P. Gasdermin-E-Dependent Non-Canonical Pyroptosis Promotes Drug-Induced Liver Failure by Promoting CPS1 deISGylation and Degradation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305715. [PMID: 38417117 PMCID: PMC11040357 DOI: 10.1002/advs.202305715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/22/2023] [Indexed: 03/01/2024]
Abstract
Drug-induced liver injury (DILI) is a significant global health issue that poses high mortality and morbidity risks. One commonly observed cause of DILI is acetaminophen (APAP) overdose. GSDME is an effector protein that induces non-canonical pyroptosis. In this study, the activation of GSDME, but not GSDMD, in the liver tissue of mice and patients with APAP-DILI is reported. Knockout of GSDME, rather than GSDMD, in mice protected them from APAP-DILI. Mice with hepatocyte-specific rescue of GSDME reproduced APAP-induced liver injury. Furthermore, alterations in the immune cell pools observed in APAP-induced DILI, such as the replacement of TIM4+ resident Kupffer cells (KCs) by monocyte-derived KCs, Ly6C+ monocyte infiltration, MerTk+ macrophages depletion, and neutrophil increase, reappeared in mice with hepatocyte-specific rescue of GSDME. Mechanistically, APAP exposure led to a substantial loss of interferon-stimulated gene 15 (ISG15), resulting in deISGylation of carbamoyl phosphate synthetase-1 (CPS1), promoted its degradation via K48-linked ubiquitination, causing ammonia clearance dysfunction. GSDME deletion prevented these effects. Delayed administration of dimethyl-fumarate inhibited GSDME cleavage and alleviated ammonia accumulation, mitigating liver injury. This findings demonstrated a previously uncharacterized role of GSDME in APAP-DILI by promoting pyroptosis and CPS1 deISGylation, suggesting that inhibiting GSDME can be a promising therapeutic option for APAP-DILI.
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Affiliation(s)
- Shen‐Xi Ouyang
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Jia‐Hui Zhu
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Qi Cao
- The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Department of PharmacologySchool of PharmacyNaval Medical University/Second Military Medical UniversityShanghai200433China
- Shanghai Key Laboratory for Pharmaceutical Metabolite ResearchNaval Medical University/Second Military Medical UniversityShanghai200433China
- National Demonstration Center for Experimental Pharmaceutical EducationNaval Medical University/Second Military Medical UniversityShanghai200433China
| | - Jian Liu
- Department of Hepatic SurgeryThe Eastern Hepatobiliary Surgery HospitalNaval Medical University/Second Military Medical UniversityShanghai200438China
| | - Zhen Zhang
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Yan Zhang
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Jing‐Wen Wu
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Si‐Jia Sun
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Jiang‐Tao Fu
- The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Department of PharmacologySchool of PharmacyNaval Medical University/Second Military Medical UniversityShanghai200433China
- Shanghai Key Laboratory for Pharmaceutical Metabolite ResearchNaval Medical University/Second Military Medical UniversityShanghai200433China
- National Demonstration Center for Experimental Pharmaceutical EducationNaval Medical University/Second Military Medical UniversityShanghai200433China
| | - Yi‐Ting Chen
- The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Department of PharmacologySchool of PharmacyNaval Medical University/Second Military Medical UniversityShanghai200433China
- Shanghai Key Laboratory for Pharmaceutical Metabolite ResearchNaval Medical University/Second Military Medical UniversityShanghai200433China
- National Demonstration Center for Experimental Pharmaceutical EducationNaval Medical University/Second Military Medical UniversityShanghai200433China
| | - Jie Tong
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Yi Liu
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Jia‐Bao Zhang
- The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Department of PharmacologySchool of PharmacyNaval Medical University/Second Military Medical UniversityShanghai200433China
- Shanghai Key Laboratory for Pharmaceutical Metabolite ResearchNaval Medical University/Second Military Medical UniversityShanghai200433China
- National Demonstration Center for Experimental Pharmaceutical EducationNaval Medical University/Second Military Medical UniversityShanghai200433China
| | - Fu‐Ming Shen
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Dong‐Jie Li
- Department of PharmacyShanghai Tenth People's HospitalSchool of MedicineTongji UniversityShanghai200092China
| | - Pei Wang
- The Center for Basic Research and Innovation of Medicine and Pharmacy (MOE), Department of PharmacologySchool of PharmacyNaval Medical University/Second Military Medical UniversityShanghai200433China
- Shanghai Key Laboratory for Pharmaceutical Metabolite ResearchNaval Medical University/Second Military Medical UniversityShanghai200433China
- National Demonstration Center for Experimental Pharmaceutical EducationNaval Medical University/Second Military Medical UniversityShanghai200433China
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Lin C, Kuffour EO, Li T, Gertzen CGW, Kaiser J, Luedde T, König R, Gohlke H, Münk C. The ISG15-Protease USP18 Is a Pleiotropic Enhancer of HIV-1 Replication. Viruses 2024; 16:485. [PMID: 38675828 PMCID: PMC11053637 DOI: 10.3390/v16040485] [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: 02/16/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
The innate immune response to viruses is formed in part by interferon (IFN)-induced restriction factors, including ISG15, p21, and SAMHD1. IFN production can be blocked by the ISG15-specific protease USP18. HIV-1 has evolved to circumvent host immune surveillance. This mechanism might involve USP18. In our recent studies, we demonstrate that HIV-1 infection induces USP18, which dramatically enhances HIV-1 replication by abrogating the antiviral function of p21. USP18 downregulates p21 by accumulating misfolded dominant negative p53, which inactivates wild-type p53 transactivation, leading to the upregulation of key enzymes involved in de novo dNTP biosynthesis pathways and inactivated SAMHD1. Despite the USP18-mediated increase in HIV-1 DNA in infected cells, it is intriguing to note that the cGAS-STING-mediated sensing of the viral DNA is abrogated. Indeed, the expression of USP18 or knockout of ISG15 inhibits the sensing of HIV-1. We demonstrate that STING is ISGylated at residues K224, K236, K289, K347, K338, and K370. The inhibition of STING K289-linked ISGylation suppresses its oligomerization and IFN induction. We propose that human USP18 is a novel factor that potentially contributes in multiple ways to HIV-1 replication.
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Affiliation(s)
- Chaohui Lin
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Edmund Osei Kuffour
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Taolan Li
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Christoph G. W. Gertzen
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.G.W.G.); (J.K.); (H.G.)
| | - Jesko Kaiser
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.G.W.G.); (J.K.); (H.G.)
| | - Tom Luedde
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
| | - Renate König
- Host-Pathogen Interactions, Paul-Ehrlich-Institut, 63225 Langen, Germany;
| | - Holger Gohlke
- Institute for Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.G.W.G.); (J.K.); (H.G.)
- Institute of Bio- and Geosciences (IBG-4: Bioinformatics), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Carsten Münk
- Clinic of Gastroenterology, Hepatology and Infectious Diseases, Medical Faculty, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany; (C.L.); (E.O.K.); (T.L.); (T.L.)
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Espada CE, da Rocha EL, Ricciardi-Jorge T, dos Santos AA, Soares ZG, Malaquias G, Patrício DO, Gonzalez Kozlova E, dos Santos PF, Bordignon J, Sanford TJ, Fajardo T, Sweeney TR, Báfica A, Mansur DS. ISG15/USP18/STAT2 is a molecular hub regulating IFN I-mediated control of Dengue and Zika virus replication. Front Immunol 2024; 15:1331731. [PMID: 38384473 PMCID: PMC10879325 DOI: 10.3389/fimmu.2024.1331731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024] Open
Abstract
The establishment of a virus infection is the result of the pathogen's ability to replicate in a hostile environment generated by the host's immune system. Here, we found that ISG15 restricts Dengue and Zika viruses' replication through the stabilization of its binding partner USP18. ISG15 expression was necessary to control DV replication driven by both autocrine and paracrine type one interferon (IFN-I) signaling. Moreover, USP18 competes with NS5-mediated STAT2 degradation, a major mechanism for establishment of flavivirus infection. Strikingly, reconstitution of USP18 in ISG15-deficient cells was sufficient to restore the STAT2's stability and restrict virus growth, suggesting that the IFNAR-mediated ISG15 activity is also antiviral. Our results add a novel layer of complexity in the virus/host interaction interface and suggest that NS5 has a narrow window of opportunity to degrade STAT2, therefore suppressing host's IFN-I mediated response and promoting virus replication.
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Affiliation(s)
- Constanza Eleonora Espada
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Edroaldo Lummertz da Rocha
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Taissa Ricciardi-Jorge
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Adara Aurea dos Santos
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Zamira Guerra Soares
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Greicy Malaquias
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Daniel Oliveira Patrício
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Edgar Gonzalez Kozlova
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Paula Fernandes dos Santos
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas, Instituto Carlos Chagas (ICC)/Fiocruz-PR, Curitiba, Brazil
| | - Thomas J. Sanford
- Division of Virology, Department of Pathology, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Teodoro Fajardo
- Division of Virology, Department of Pathology, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Trevor R. Sweeney
- Division of Virology, Department of Pathology, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
- Viral Gene Expression Group, The Pirbright Institute, Guildford, United Kingdom
| | - André Báfica
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Daniel Santos Mansur
- Laboratório de Imunobiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Álvarez E, Falqui M, Sin L, McGrail JP, Perdiguero B, Coloma R, Marcos-Villar L, Tárrega C, Esteban M, Gómez CE, Guerra S. Unveiling the Multifaceted Roles of ISG15: From Immunomodulation to Therapeutic Frontiers. Vaccines (Basel) 2024; 12:153. [PMID: 38400136 PMCID: PMC10891536 DOI: 10.3390/vaccines12020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
The Interferon Stimulated Gene 15 (ISG15), a unique Ubiquitin-like (Ubl) modifier exclusive to vertebrates, plays a crucial role in the immune system. Primarily induced by interferon (IFN) type I, ISG15 functions through diverse mechanisms: (i) covalent protein modification (ISGylation); (ii) non-covalent intracellular action; and (iii) exerting extracellular cytokine activity. These various roles highlight its versatility in influencing numerous cellular pathways, encompassing DNA damage response, autophagy, antiviral response, and cancer-related processes, among others. The well-established antiviral effects of ISGylation contrast with its intriguing dual role in cancer, exhibiting both suppressive and promoting effects depending on the tumour type. The multifaceted functions of ISG15 extend beyond intracellular processes to extracellular cytokine signalling, influencing immune response, chemotaxis, and anti-tumour effects. Moreover, ISG15 emerges as a promising adjuvant in vaccine development, enhancing immune responses against viral antigens and demonstrating efficacy in cancer models. As a therapeutic target in cancer treatment, ISG15 exhibits a double-edged nature, promoting or suppressing oncogenesis depending on the tumour context. This review aims to contribute to future studies exploring the role of ISG15 in immune modulation and cancer therapy, potentially paving the way for the development of novel therapeutic interventions, vaccine development, and precision medicine.
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Affiliation(s)
- Enrique Álvarez
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
| | - Michela Falqui
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Laura Sin
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Joseph Patrick McGrail
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Beatriz Perdiguero
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Rocío Coloma
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Laura Marcos-Villar
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Céline Tárrega
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
| | - Mariano Esteban
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
| | - Carmen Elena Gómez
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain; (E.Á.); (L.S.); (B.P.); (L.M.-V.); (M.E.)
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Susana Guerra
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.F.); (J.P.M.); (R.C.); (C.T.)
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Sarkar R, Patra U, Mukherjee A, Mitra S, Komoto S, Chawla-Sarkar M. Rotavirus circumvents the antiviral effects of protein ISGylation via proteasomal degradation of Ube1L. Cell Signal 2023; 112:110891. [PMID: 37722521 DOI: 10.1016/j.cellsig.2023.110891] [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: 04/12/2023] [Revised: 08/10/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Among the ramified cellular responses elicited in response to pathogenic stimuli, upregulation and covalent conjugation of an Ubiquitin-like modifier ISG15 to lysine residues of target proteins (ISGylation) through sequential action of three enzymes E1 (Ube1L), E2 (Ube2L6) and E3 (Herc5) have emerged as an important regulatory facet governing innate immunity against numerous viral infections. In the present study, we investigated the interplay between host ISGylation system and Rotavirus (RV). We observed that RV infection upregulates the expression of free ISG15 but prevents protein ISGylation. Analysing the expression of ISGylation machinery components revealed that RV infection results in steady depletion of Ube1L protein with the progression of infection. Indeed, restoration of Ube1L expression caused induction in protein ISGylation during RV infection. Subsequent investigation revealed that ectopic expression of RV non-structural protein 5 (NSP5) fosters proteolytic ubiquitylation of Ube1L, thereby depleting it in an ubiquitin-proteasome-dependent manner. Moreover, pan-Cullin inhibition also abrogates proteolytic ubiquitylation and rescued depleted Ube1L in RV-NSP5 expressing cells, suggesting the involvement of host cellular Cullin RING Ligases (CRLs) in proteasomal degradation of Ube1L during RV-SA11 infection. Reciprocal co-immunoprecipitation analyses substantiated a molecular association between Ube1L and RV-NSP5 during infection scenario and also under ectopically overexpressed condition independent of intermediate RNA scaffold and RV-NSP5 hyperphosphorylation. Interestingly, clonal overexpression of Ube1L reduced expression of RV proteins and RV infectivity, which are restored in ISG15 silenced cells, suggesting that Ube1L is a crucial anti-viral host cellular determinant that inhibits RV infection by promoting the formation of ISG15 conjugates.
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Affiliation(s)
- Rakesh Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Upayan Patra
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Arpita Mukherjee
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Suvrotoa Mitra
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Satoshi Komoto
- Department of Virology and Parasitology, School of Medicine, Fujita Health University, Aichi, Japan
| | - Mamta Chawla-Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India.
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7
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Ding S, Pang X, Luo S, Gao H, Li B, Yue J, Chen J, Hu S, Tu Z, He D, Kuang Y, Dong Z, Zhang M. Dynamic RBM47 ISGylation confers broad immunoprotection against lung injury and tumorigenesis via TSC22D3 downregulation. Cell Death Discov 2023; 9:430. [PMID: 38036512 PMCID: PMC10689852 DOI: 10.1038/s41420-023-01736-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 10/30/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023] Open
Abstract
ISGylation is a well-established antiviral mechanism, but its specific function in immune and tissue homeostasis regulation remains elusive. Here, we reveal that the RNA-binding protein RBM47 undergoes phosphorylation-dependent ISGylation at lysine 329 to regulate immune activation and maintain lung homeostasis. K329R knockin (KI) mice with defective RBM47-ISGylation display heightened susceptibility to LPS-induced acute lung injury and lung tumorigenesis, accompanied with multifaceted immunosuppression characterized by elevated pro-inflammatory factors, reduced IFNs/related chemokines, increased myeloid-derived suppressor cells, and impaired tertiary lymphoid structures. Mechanistically, RBM47-ISGylation regulation of the expression of TSC22D3 mRNA, a glucocorticoid-inducible transcription factor, partially accounts for the effects of RBM47-ISGylation deficiency due to its broad immunosuppressive activity. We further demonstrate the direct inhibitory effect of RBM47-ISGylation on TSC22D3 expression in human cells using a nanobody-targeted E3 ligase to induce site-specific ISGylation. Furthermore, epinephrine-induced S309 phosphorylation primes RBM47-ISGylation, with epinephrine treatment exacerbating dysregulated cytokine expression and ALI induction in K329R KI mice. Our findings provide mechanistic insights into the dynamic regulation of RBM47-ISGylation in supporting immune activation and maintaining lung homeostasis.
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Affiliation(s)
- Shihui Ding
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Center for Neurological Disease Research, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, China
| | - Xiquan Pang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | | | - Huili Gao
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bo Li
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Junqiu Yue
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Pathology, Hubei Cancer Hospital, Tongji Medical College, 430079, Wuhan, China
| | - Jian Chen
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Head and Neck Surgery, Hubei Cancer Hospital, Tongji Medical College, 430079, Wuhan, China
| | - Sheng Hu
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Oncology, Hubei Cancer Hospital, Tongji Medical College, Wuhan, 430079, China
| | - Zepeng Tu
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Dong He
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Youyi Kuang
- Heilongjiang River Fisheries Research Institute of Chinese Academy of Fishery Sciences, No. 232, Hesong Street, Daoli District, Harbin, 150070, China
| | - Zhiqiang Dong
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
- Center for Neurological Disease Research, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, China.
| | - Min Zhang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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8
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Yuan L, Xu J, Qin F, Yi X, Zhong Z, Gu X, Gong G. USP18 overexpression protects against spinal cord ischemia/reperfusion injury via regulating autophagy. Neurosci Lett 2023; 810:137359. [PMID: 37356565 DOI: 10.1016/j.neulet.2023.137359] [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: 04/18/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND Spinal cord ischemia-reperfusion injury (SCII) is usually caused by spinal surgery, often leading to severe neurological deficits. The ubiquitin-specific protease 18 (USP18) plays a significant role in neurological diseases. OBJECTIVE The present study was designed to assess the effects and mechanisms of USP18 on SCII. METHODS By inducing transient aortic occlusion and subsequent reperfusion, a rat model of SCII was successfully established. The Basso-Beattie-Bresnahan scores, the inclined plane test, and hematoxylin and eosin (HE) were used to measure locomotor activity and histological changes in the injured spinal cords. Moreover, the SCII cell model was established using PC12 cells under oxygen-glucose deprivation and reoxygenation (OGD/R). Proinflammatory factors (TNF-α, IL-6, and INF-α) were examined using an ELISA kit. Cell apoptosis was assessed by Annexin V-FITC/PI double-staining and TUNEL assays. Western blot was used to detect the expression levels of proteins related to apoptosis and autophagy. RESULTS USP18 expression was decreasedin vivo and in vitro SCII models. The upregulation of USP18 ameliorated hind limbs' motor function, inhibiting inflammation and apoptosis after SCII in rats. USP18 overexpression in vitro may protect PC12 cells from OGD/R-induced damage by modulating inflammatory responses and apoptosis. Moreover, Overexpression of USP18 enhanced autophagy to inhibit cell apoptosis induced by SCII in vivo and in vitro. CONCLUSIONS In summary, USP18 overexpression protects against SCII via regulating autophagy.
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Affiliation(s)
- Libang Yuan
- Department of Anesthesia, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, Sichuan 610083, China
| | - Jin Xu
- School of Electrical Engineering and Information, Southwest Petroleum University, Chengdu, Sichuan 610083, China
| | - Fuen Qin
- Department of Anesthesia, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, Sichuan 610083, China
| | - Xiaobo Yi
- Department of Anesthesia, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, Sichuan 610083, China
| | - Zuling Zhong
- Department of Anesthesia, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, Sichuan 610083, China
| | - Xiaoping Gu
- Department of Anesthesia, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, Sichuan 610083, China
| | - Gu Gong
- Department of Anesthesia, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, Sichuan 610083, China.
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9
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Falqui M, Perdiguero B, Coloma R, Albert M, Marcos-Villar L, McGrail JP, Sorzano CÓS, Esteban M, Gómez CE, Guerra S. An MVA-based vector expressing cell-free ISG15 increases IFN-I production and improves HIV-1-specific CD8 T cell immune responses. Front Cell Infect Microbiol 2023; 13:1187193. [PMID: 37313341 PMCID: PMC10258332 DOI: 10.3389/fcimb.2023.1187193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/17/2023] [Indexed: 06/15/2023] Open
Abstract
The human immunodeficiency virus (HIV), responsible of the Acquired Immune Deficiency Syndrome (AIDS), continues to be a major global public health issue with any cure or vaccine available. The Interferon-stimulated gene 15 (ISG15) encodes a ubiquitin-like protein that is induced by interferons and plays a critical role in the immune response. ISG15 is a modifier protein that covalently binds to its targets via a reversible bond, a process known as ISGylation, which is the best-characterized activity of this protein to date. However, ISG15 can also interact with intracellular proteins via non-covalent binding or act as a cytokine in the extracellular space after secretion. In previous studies we proved the adjuvant effect of ISG15 when delivered by a DNA-vector in heterologous prime-boost combination with a Modified Vaccinia virus Ankara (MVA)-based recombinant virus expressing HIV-1 antigens Env/Gag-Pol-Nef (MVA-B). Here we extended these results evaluating the adjuvant effect of ISG15 when expressed by an MVA vector. For this, we generated and characterized two novel MVA recombinants expressing different forms of ISG15, the wild-type ISG15GG (able to perform ISGylation) or the mutated ISG15AA (unable to perform ISGylation). In mice immunized with the heterologous DNA prime/MVA boost regimen, the expression of the mutant ISG15AA from MVA-Δ3-ISG15AA vector in combination with MVA-B induced an increase in the magnitude and quality of HIV-1-specific CD8 T cells as well as in the levels of IFN-I released, providing a better immunostimulatory activity than the wild-type ISG15GG. Our results confirm the importance of ISG15 as an immune adjuvant in the vaccine field and highlights its role as a potential relevant component in HIV-1 immunization protocols.
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Affiliation(s)
- Michela Falqui
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Beatriz Perdiguero
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Rocio Coloma
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Manuel Albert
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Laura Marcos-Villar
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Joseph Patrick McGrail
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Carlos Óscar S. Sorzano
- Biocomputing Unit and Computational Genomics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Mariano Esteban
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Carmen Elena Gómez
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Susana Guerra
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma de Madrid, Madrid, Spain
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10
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Li L, Miao J, Shaheen N, Taleb SJ, Hu J, Ye Q, He J, Yan J, Mallampalli RK, Zhao J, Zhao Y. ISGylation of NF-κBp65 by SCF FBXL19 E3 Ligase Diminishes Endothelial Inflammation. Arterioscler Thromb Vasc Biol 2023; 43:674-683. [PMID: 36994728 PMCID: PMC10133096 DOI: 10.1161/atvbaha.122.318894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 03/21/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND NF-κB (nuclear factor kappa B) plays a pivotal role in endothelial cell (EC) inflammation. Protein ISGylation is regulated by E3 ISG15 (interferon-stimulated gene 15) ligases; however, ISGylation of NF-κBp65 and its role in EC functions have not been investigated. Here, we investigate whether p65 is ISGylated and the role of its ISGylation in endothelial functions. METHODS In vitro ISGylation assay and EC inflammation were performed. EC-specific transgenic mice were utilized in a murine model of acute lung injury. RESULTS We find that NF-κBp65 is ISGylated in resting ECs and that the posttranslational modification is reversible. TNFα (tumor necrosis factor alpha) and endotoxin stimulation of EC reduce p65 ISGylation, promoting its serine phosphorylation through reducing its association with a phosphatase WIP1 (wild-type p53-induced phosphatase 1). Mechanistically, an SCF (Skp1-Cul1-F-box) protein E3 ligase SCFFBXL19 is identified as a new ISG15 E3 ligase that targets and catalyzes ISGylation of p65. Depletion of FBXL19 (F-box and leucine-rich repeat protein 19) increases p65 phosphorylation and EC inflammation, suggesting a negative correlation between p65 ISGylation and phosphorylation. Moreover, EC-specific FBXL19 overexpressing humanized transgenic mice exhibit reduced lung inflammation and severity of experimental acute lung injury. CONCLUSIONS Together, our data reveal a new posttranslational modification of p65 catalyzed by a previously unrecognized role of SCFFBXL19 as an ISG15 E3 ligase that modulates EC inflammation.
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Affiliation(s)
- Lian Li
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
| | - Jiaxing Miao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
| | - Nargis Shaheen
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
| | - Sarah J. Taleb
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
| | - Jian Hu
- Department of Internal Medicine, the Ohio State University, Columbus, OH
| | - Qinmao Ye
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
| | - Jinshan He
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
| | - Jiasheng Yan
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
| | | | - Jing Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
- Department of Internal Medicine, the Ohio State University, Columbus, OH
| | - Yutong Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, the Ohio State University, Columbus, OH
- Department of Internal Medicine, the Ohio State University, Columbus, OH
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11
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Xie H, Chen J, Ma C, Zhao J, Cui M. UBP43 promotes epithelial ovarian carcinogenesis via activation of β-catenin signaling pathway. Cell Biol Int 2023. [PMID: 37186433 DOI: 10.1002/cbin.12028] [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: 05/04/2022] [Revised: 03/17/2023] [Accepted: 04/09/2023] [Indexed: 05/17/2023]
Abstract
Dysregulation of the deubiquitinating protease, UBP43, has been implicated in many human diseases, including cancer. Here, we evaluated the functional significance and mechanism of action of UBP43 in epithelial ovarian cancer. We found that UBP43 was significantly upregulated in the tumor tissues of patients with epithelial ovarian cancer. Similar results were observed in OVCAR-3, Caov-3, TOV-112D, A2780, and SK-OV-3 cells. Furthermore, in vitro functional assays of A2780 and TOV-112D cells demonstrated that UBP43 overexpression promoted cell proliferation, migration, and invasion. Upregulation of UBP43 might result in epithelial-mesenchymal transition by inducing the nuclear transport of β-catenin, which was accompanied by enhanced N-cadherin but decreased E-cadherin expression. These malignant phenotypes were reversed by UBP43 silencing. Further investigation revealed that the knockdown of UBP43 inhibited cell proliferation by inducing a cell cycle arrest at the G2/M phase. The oncogenic characteristics of UBP43 were validated in a subcutaneous xenograft mouse model. In vivo, tumor growth was delayed in the UBP43-silenced group but accelerated after UBP43 overexpression. Finally, we demonstrated that β-catenin is a key protein in the UBP43-mediated malignant development of epithelial ovarian cancer. Specifically, overexpression of UBP43 decreased the ubiquitination degradation of β-catenin and enhanced its protein stability. Also, we observed that the downstream genes of beta-catenin such as cyclin D1, MMP2, and MMP9 were upregulated due to UBP43 overexpression. Thus, we concluded that UBP43 promoted epithelial ovarian cancer tumorigenesis and metastasis through activation of the β-catenin pathway, suggesting that UBP43 may be a potential therapeutic target for this intractable disease.
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Affiliation(s)
- Hongyang Xie
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Junyu Chen
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Changyan Ma
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Jingjing Zhao
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Manhua Cui
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin Province, China
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12
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Garces A, Martinez B, De La Garza R, Roy D, Vallee KA, Fields JA, Moore DJ, Rodrigo H, Roy U. Differential expression of interferon-induced protein with tetratricopeptide repeats 3 (IFIT3) in Alzheimer's disease and HIV-1 associated neurocognitive disorders. Sci Rep 2023; 13:3276. [PMID: 36841839 PMCID: PMC9968324 DOI: 10.1038/s41598-022-27276-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 12/29/2022] [Indexed: 02/27/2023] Open
Abstract
The United Nations projects that one in every six people will be over the age of 65 by the year 2050. With a rapidly aging population, the risk of Alzheimer's disease (AD) becomes a major concern. AD is a multifactorial disease that involves neurodegeneration in the brain with mild dementia and deficits in memory and other cognitive domains. Additionally, it has been established that individuals with Human Immunodeficiency Virus-1 (HIV-1) experience a 5 to 10-year accelerated aging and an increased risk of developing HIV-associated neurocognitive disorders (HAND). Despite a significant amount of clinical evidence pointing towards a potential overlap between neuropathogenic processes in HAND and AD, the underlying epigenetic link between these two diseases is mostly unknown. This study is focused on identifying differentially expressed genes observed in both AD and HAND using linear regression models and a more robust significance analysis of microarray. The results established that the dysregulated type 1 and 2 interferon pathways observed in both AD and HAND contribute to the similar pathologies of these diseases within the brain. The current study identifies the important roles of interferon pathways in AD and HAND, a relationship that may be useful for earlier detection in the future.
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Affiliation(s)
- Armando Garces
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
| | - Bryan Martinez
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
| | - Roberto De La Garza
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
| | - Deepa Roy
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA
| | - Kaylie-Anna Vallee
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Jerel Adam Fields
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - David J Moore
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Hansapani Rodrigo
- School of Mathematical and Statistical Sciences, University of Texas Rio Grande Valley (UTRGV), Edinburg, TX, USA.
| | - Upal Roy
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, One West University Blvd, Brownsville, TX, 78520, USA.
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13
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The diverse repertoire of ISG15: more intricate than initially thought. Exp Mol Med 2022; 54:1779-1792. [PMID: 36319753 PMCID: PMC9722776 DOI: 10.1038/s12276-022-00872-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 11/05/2022] Open
Abstract
ISG15, the product of interferon (IFN)-stimulated gene 15, is the first identified ubiquitin-like protein (UBL), which plays multifaceted roles not only as a free intracellular or extracellular molecule but also as a post-translational modifier in the process of ISG15 conjugation (ISGylation). ISG15 has only been identified in vertebrates, indicating that the functions of ISG15 and its conjugation are restricted to higher eukaryotes and have evolved with IFN signaling. Despite the highlighted complexity of ISG15 and ISGylation, it has been suggested that ISG15 and ISGylation profoundly impact a variety of cellular processes, including protein translation, autophagy, exosome secretion, cytokine secretion, cytoskeleton dynamics, DNA damage response, telomere shortening, and immune modulation, which emphasizes the necessity of reassessing ISG15 and ISGylation. However, the underlying mechanisms and molecular consequences of ISG15 and ISGylation remain poorly defined, largely due to a lack of knowledge on the ISG15 target repertoire. In this review, we provide a comprehensive overview of the mechanistic understanding and molecular consequences of ISG15 and ISGylation. We also highlight new insights into the roles of ISG15 and ISGylation not only in physiology but also in the pathogenesis of various human diseases, especially in cancer, which could contribute to therapeutic intervention in human diseases.
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14
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Tecalco-Cruz AC, Ramírez-Jarquín JO, Zepeda-Cervantes J, Solleiro-Villavicencio H, Abraham-Juárez MJ. Ubiquitin-Specific Peptidase 18: A Multifaceted Protein Participating in Breast Cancer. Breast Cancer 2022. [DOI: 10.36255/exon-publications-breast-cancer-usp18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Pollaci G, Gorla G, Potenza A, Carrozzini T, Canavero I, Bersano A, Gatti L. Novel Multifaceted Roles for RNF213 Protein. Int J Mol Sci 2022; 23:ijms23094492. [PMID: 35562882 PMCID: PMC9099590 DOI: 10.3390/ijms23094492] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/13/2022] [Accepted: 04/17/2022] [Indexed: 11/16/2022] Open
Abstract
Ring Finger Protein 213 (RNF213), also known as Mysterin, is the major susceptibility factor for Moyamoya Arteriopathy (MA), a progressive cerebrovascular disorder that often leads to brain stroke in adults and children. Although several rare RNF213 polymorphisms have been reported, no major susceptibility variant has been identified to date in Caucasian patients, thus frustrating the attempts to identify putative therapeutic targets for MA treatment. For these reasons, the investigation of novel biochemical functions, substrates and unknown partners of RNF213 will help to unravel the pathogenic mechanisms of MA and will facilitate variant interpretations in a diagnostic context in the future. The aim of the present review is to discuss novel perspectives regarding emerging RNF213 roles in light of recent literature updates and dissect their relevance for understanding MA and for the design of future research studies. Since its identification, RNF213 involvement in angiogenesis and vasculogenesis has strengthened, together with its role in inflammatory signals and proliferation pathways. Most recent studies have been increasingly focused on its relevance in antimicrobial activity and lipid metabolism, highlighting new intriguing perspectives. The last area could suggest the main role of RNF213 in the proteasome pathway, thus reinforcing the hypotheses already previously formulated that depict the protein as an important regulator of the stability of client proteins involved in angiogenesis. We believe that the novel evidence reviewed here may contribute to untangling the complex and still obscure pathogenesis of MA that is reflected in the lack of therapies able to slow down or halt disease progression and severity.
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Affiliation(s)
- Giuliana Pollaci
- Laboratory of Neurobiology, Neurology IX Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (G.P.); (G.G.); (A.P.); (T.C.)
| | - Gemma Gorla
- Laboratory of Neurobiology, Neurology IX Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (G.P.); (G.G.); (A.P.); (T.C.)
| | - Antonella Potenza
- Laboratory of Neurobiology, Neurology IX Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (G.P.); (G.G.); (A.P.); (T.C.)
| | - Tatiana Carrozzini
- Laboratory of Neurobiology, Neurology IX Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (G.P.); (G.G.); (A.P.); (T.C.)
| | - Isabella Canavero
- Cerebrovascular Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (I.C.); (A.B.)
| | - Anna Bersano
- Cerebrovascular Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (I.C.); (A.B.)
| | - Laura Gatti
- Laboratory of Neurobiology, Neurology IX Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (G.P.); (G.G.); (A.P.); (T.C.)
- Correspondence: ; Tel.: +39-02-23942389
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Wang Z, Li T, Gong Z, Xie J. Role of ISG15 post-translational modification in immunity against Mycobacterium tuberculosis infection. Cell Signal 2022; 94:110329. [PMID: 35390466 DOI: 10.1016/j.cellsig.2022.110329] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 11/30/2022]
Abstract
ISG15 encoded by a type I interferon (IFN) inducible gene mediates an important cellular process called ISGylation. ISGylation emerges as a powerful host tactic against intracellular pathogens like Mycobacterium tuberculosis (Mtb). However, the exact role of ISGylation in immunity remains elusive. To shed light on how ISGylation, which is both interesting and complex, participates in immunity against Mtb, this manuscript summarized the current knowledge about the structural characteristics and targets of ISG15 and how ISGylation cross-talks with other host post-translational modifications to exert its effect.
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Affiliation(s)
- Zilu Wang
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Tongxin Li
- Chongqing Public Health Medical Center, Southwest University Public Health Hospital, central laboratory Chongqing, 400030, China
| | - Zhen Gong
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jianping Xie
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China.
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17
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Mirzalieva O, Juncker M, Schwartzenburg J, Desai S. ISG15 and ISGylation in Human Diseases. Cells 2022; 11:cells11030538. [PMID: 35159348 PMCID: PMC8834048 DOI: 10.3390/cells11030538] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 12/04/2022] Open
Abstract
Type I Interferons (IFNs) induce the expression of >500 genes, which are collectively called ISGs (IFN-stimulated genes). One of the earliest ISGs induced by IFNs is ISG15 (Interferon-Stimulated Gene 15). Free ISG15 protein synthesized from the ISG15 gene is post-translationally conjugated to cellular proteins and is also secreted by cells into the extracellular milieu. ISG15 comprises two ubiquitin-like domains (UBL1 and UBL2), each of which bears a striking similarity to ubiquitin, accounting for its earlier name ubiquitin cross-reactive protein (UCRP). Like ubiquitin, ISG15 harbors a characteristic β-grasp fold in both UBL domains. UBL2 domain has a conserved C-terminal Gly-Gly motif through which cellular proteins are appended via an enzymatic cascade similar to ubiquitylation called ISGylation. ISG15 protein is minimally expressed under physiological conditions. However, its IFN-dependent expression is aberrantly elevated or compromised in various human diseases, including multiple types of cancer, neurodegenerative disorders (Ataxia Telangiectasia and Amyotrophic Lateral Sclerosis), inflammatory diseases (Mendelian Susceptibility to Mycobacterial Disease (MSMD), bacteriopathy and viropathy), and in the lumbar spinal cords of veterans exposed to Traumatic Brain Injury (TBI). ISG15 and ISGylation have both inhibitory and/or stimulatory roles in the etiology and pathogenesis of human diseases. Thus, ISG15 is considered a “double-edged sword” for human diseases in which its expression is elevated. Because of the roles of ISG15 and ISGylation in cancer cell proliferation, migration, and metastasis, conferring anti-cancer drug sensitivity to tumor cells, and its elevated expression in cancer, neurodegenerative disorders, and veterans exposed to TBI, both ISG15 and ISGylation are now considered diagnostic/prognostic biomarkers and therapeutic targets for these ailments. In the current review, we shall cover the exciting journey of ISG15, spanning three decades from the bench to the bedside.
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Affiliation(s)
| | | | | | - Shyamal Desai
- Correspondence: ; Tel.: +1-504-568-4388; Fax: +1-504-568-2093
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18
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Zhang M, Li J, Yan H, Huang J, Wang F, Liu T, Zeng L, Zhou F. ISGylation in Innate Antiviral Immunity and Pathogen Defense Responses: A Review. Front Cell Dev Biol 2021; 9:788410. [PMID: 34901029 PMCID: PMC8662993 DOI: 10.3389/fcell.2021.788410] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 10/22/2021] [Indexed: 12/22/2022] Open
Abstract
The interferon-stimulating gene 15 (ISG15) protein is a ubiquitin-like protein induced by interferons or pathogens. ISG15 can exist in free form or covalently bind to the target protein through an enzymatic cascade reaction, which is called ISGylation. ISGylation has been found to play an important role in the innate immune responses induced by type I interferon, and is, thus, critical for the defense of host cells against RNA, DNA, and retroviruses. Through covalent binding with the host and viral target proteins, ISG15 inhibits the release of viral particles, hinder viral replication, and regulates the incubation period of viruses, thereby exerting strong antiviral effects. The SARS-CoV-2 papain-like protease, a virus-encoded deubiquitinating enzyme, has demonstrated activity on both ubiquitin and ISG15 chain conjugations, thus playing a suppressive role against the host antiviral innate immune response. Here we review the recent research progress in understanding ISG15-type ubiquitin-like modifications, with an emphasis on the underlying molecular mechanisms. We provide comprehensive references for further studies on the role of ISG15 in antiviral immunity, which may enable development of new antiviral drugs.
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Affiliation(s)
- Mengdi Zhang
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Jingxian Li
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Haiyan Yan
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Jun Huang
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Fangwei Wang
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ting Liu
- MOE Laboratory of Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Linghui Zeng
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Fangfang Zhou
- Institute of Biology and Medical Sciences, Soochow University, Suzhou, China
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19
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Bolado-Carrancio A, Lee M, Ewing A, Muir M, Macleod KG, Gallagher WM, Nguyen LK, Carragher NO, Semple CA, Brunton VG, Caswell PT, von Kriegsheim A. ISGylation drives basal breast tumour progression by promoting EGFR recycling and Akt signalling. Oncogene 2021; 40:6235-6247. [PMID: 34556814 PMCID: PMC8566238 DOI: 10.1038/s41388-021-02017-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/29/2021] [Accepted: 09/10/2021] [Indexed: 02/08/2023]
Abstract
ISG15 is an ubiquitin-like modifier that is associated with reduced survival rates in breast cancer patients. The mechanism by which ISG15 achieves this however remains elusive. We demonstrate that modification of Rab GDP-Dissociation Inhibitor Beta (GDI2) by ISG15 (ISGylation) alters endocytic recycling of the EGF receptor (EGFR) in non-interferon stimulated cells using CRISPR-knock out models for ISGylation. By regulating EGFR trafficking, ISGylation enhances EGFR recycling and sustains Akt-signalling. We further show that Akt signalling positively correlates with levels of ISG15 and its E2-ligase in basal breast cancer cohorts, confirming the link between ISGylation and Akt signalling in human tumours. Persistent and enhanced Akt activation explains the more aggressive tumour behaviour observed in human breast cancers. We show that ISGylation can act as a driver of tumour progression rather than merely being a bystander.
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Affiliation(s)
- Alfonso Bolado-Carrancio
- Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - Martin Lee
- Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - Ailith Ewing
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - Morwenna Muir
- Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - Kenneth G Macleod
- Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - William M Gallagher
- UCD School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, D4, Republic of Ireland
| | - Lan K Nguyen
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, 3800, Australia
| | - Neil O Carragher
- Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - Colin A Semple
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - Valerie G Brunton
- Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK
| | - Patrick T Caswell
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
| | - Alex von Kriegsheim
- Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XU, UK.
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20
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Thery F, Martina L, Asselman C, Zhang Y, Vessely M, Repo H, Sedeyn K, Moschonas GD, Bredow C, Teo QW, Zhang J, Leandro K, Eggermont D, De Sutter D, Boucher K, Hochepied T, Festjens N, Callewaert N, Saelens X, Dermaut B, Knobeloch KP, Beling A, Sanyal S, Radoshevich L, Eyckerman S, Impens F. Ring finger protein 213 assembles into a sensor for ISGylated proteins with antimicrobial activity. Nat Commun 2021; 12:5772. [PMID: 34599178 PMCID: PMC8486878 DOI: 10.1038/s41467-021-26061-w] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/14/2021] [Indexed: 12/20/2022] Open
Abstract
ISG15 is an interferon-stimulated, ubiquitin-like protein that can conjugate to substrate proteins (ISGylation) to counteract microbial infection, but the underlying mechanisms remain elusive. Here, we use a virus-like particle trapping technology to identify ISG15-binding proteins and discover Ring Finger Protein 213 (RNF213) as an ISG15 interactor and cellular sensor of ISGylated proteins. RNF213 is a poorly characterized, interferon-induced megaprotein that is frequently mutated in Moyamoya disease, a rare cerebrovascular disorder. We report that interferon induces ISGylation and oligomerization of RNF213 on lipid droplets, where it acts as a sensor for ISGylated proteins. We show that RNF213 has broad antimicrobial activity in vitro and in vivo, counteracting infection with Listeria monocytogenes, herpes simplex virus 1, human respiratory syncytial virus and coxsackievirus B3, and we observe a striking co-localization of RNF213 with intracellular bacteria. Together, our findings provide molecular insights into the ISGylation pathway and reveal RNF213 as a key antimicrobial effector.
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Affiliation(s)
- Fabien Thery
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Lia Martina
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Caroline Asselman
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Yifeng Zhang
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Madeleine Vessely
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Heidi Repo
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Koen Sedeyn
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - George D Moschonas
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Clara Bredow
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biochemistry, Berlin, Germany
| | - Qi Wen Teo
- HKU-Pasteur Research Pole, School of Public Health, University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Jingshu Zhang
- HKU-Pasteur Research Pole, School of Public Health, University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Kevin Leandro
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Denzel Eggermont
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Delphine De Sutter
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Katie Boucher
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- VIB Proteomics Core, VIB, Ghent, Belgium
| | - Tino Hochepied
- VIB Center for Inflammation Research, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Nele Festjens
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Nico Callewaert
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Xavier Saelens
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Bart Dermaut
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Klaus-Peter Knobeloch
- Institute of Neuropathology, Medical Faculty, University of Freiburg, Freiburg, Germany
| | - Antje Beling
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biochemistry, Berlin, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), partner side Berlin, Berlin, Germany
| | - Sumana Sanyal
- HKU-Pasteur Research Pole, School of Public Health, University of Hong Kong, Pok Fu Lam, Hong Kong
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, UK
| | - Lilliana Radoshevich
- Department of Microbiology and Immunology, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
| | - Sven Eyckerman
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.
| | - Francis Impens
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.
- VIB Proteomics Core, VIB, Ghent, Belgium.
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21
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Yan S, Kumari M, Xiao H, Jacobs C, Kochumon S, Jedrychowski M, Chouchani E, Ahmad R, Rosen ED. IRF3 reduces adipose thermogenesis via ISG15-mediated reprogramming of glycolysis. J Clin Invest 2021; 131:144888. [PMID: 33571167 DOI: 10.1172/jci144888] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 02/10/2021] [Indexed: 12/21/2022] Open
Abstract
Adipose thermogenesis is repressed in obesity, reducing the homeostatic capacity to compensate for chronic overnutrition. Inflammation inhibits adipose thermogenesis, but little is known about how this occurs. Here we showed that the innate immune transcription factor IRF3 is a strong repressor of thermogenic gene expression and oxygen consumption in adipocytes. IRF3 achieved this by driving expression of the ubiquitin-like modifier ISG15, which became covalently attached to glycolytic enzymes, thus reducing their function and decreasing lactate production. Lactate repletion was able to restore thermogenic gene expression, even when the IRF3/ISG15 axis was activated. Mice lacking ISG15 phenocopied mice lacking IRF3 in adipocytes, as both had elevated energy expenditure and were resistant to diet-induced obesity. These studies provide a deep mechanistic understanding of how the chronic inflammatory milieu of adipose tissue in obesity prevents thermogenic compensation for overnutrition.
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Affiliation(s)
- Shuai Yan
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Manju Kumari
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.,Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Haopeng Xiao
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher Jacobs
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.,Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
| | - Shihab Kochumon
- Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mark Jedrychowski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Edward Chouchani
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA
| | - Rasheed Ahmad
- Immunology and Microbiology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Evan D Rosen
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of Harvard and MIT, Cambridge, Massachusetts, USA
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22
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ISGylation Inhibits an LPS-Induced Inflammatory Response via the TLR4/NF-κB Signaling Pathway in Goat Endometrial Epithelial Cells. Animals (Basel) 2021; 11:ani11092593. [PMID: 34573559 PMCID: PMC8470639 DOI: 10.3390/ani11092593] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/25/2021] [Accepted: 08/29/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Endometritis is a common and important reproductive disease of domestic animals, leading to repeated infertility, abortion, and ovarian dysfunction, which affects the reproductive rate and production performance of female domestic animals, and causes serious financial loss to farmers. Infection with Gram-negative bacteria, the release of LPS and activation of the TLR4/NF-κB signaling pathway are the principal factors responsible for the disease. However, the mechanism of the interaction between endometrial immunity and bacterial infection is not entirely clear. Ubiquitin-like protein ISG15 can regulate the TLR4/NF-κB signaling pathway via the ISGylation modification system, which modulates the inflammatory response. In the present study, we found that ISG15 proteins were mainly located in the cytoplasm of goat endometrial epithelial cells (gEECs) and that the expression of key genes and proteins of ISGylation increased in LPS-induce gEECs. Overexpression and silencing of the ISG15 gene demonstrated that ISGylation inhibited an LPS-induced inflammatory response via the TLR4/NF-κB signaling pathway in gEECs. Here, we provide the experimental basis for further exploration of the role of the ISGylation modification system in the inflammatory response of endometrium and a potential method for the treatment of endometritis. Abstract Endometritis is a common and important reproductive disease of domestic animals. The principal factors responsible for the disease are infection with Gram-negative bacteria, the release of Lipopolysaccharides (LPS) and activation of the TLR4/NF-κB signaling pathway. However, we do not fully understand the interaction between endometrial immunity and bacterial infection in the disease etiology. The ubiquitin-like protein ISG15 can regulate the TLR4/NF-κB signaling pathway via the ISGylation modification system, modulating the inflammatory response. In the present study, we found that ISG15 protein was expressed mainly in the cytoplasm of goat endometrial epithelial cells (gEECs) and that the expression of key genes and proteins of ISGylation increased in LPS-induced gEECs. Overexpression and silencing of the ISG15 gene demonstrated that ISGylation inhibited an LPS-induced inflammatory response via the TLR4/NF-κB signaling pathway in gEECs. Here, we provide the experimental basis for further exploration of the role of the ISGylation modification system in the inflammatory response of endometrium and a potential method for the treatment of endometritis.
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23
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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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24
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Chelbi-Alix MK, Thibault P. Crosstalk Between SUMO and Ubiquitin-Like Proteins: Implication for Antiviral Defense. Front Cell Dev Biol 2021; 9:671067. [PMID: 33968942 PMCID: PMC8097047 DOI: 10.3389/fcell.2021.671067] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022] Open
Abstract
Interferon (IFN) is a crucial first line of defense against viral infection. This cytokine induces the expression of several IFN-Stimulated Genes (ISGs), some of which act as restriction factors. Upon IFN stimulation, cells also express ISG15 and SUMO, two key ubiquitin-like (Ubl) modifiers that play important roles in the antiviral response. IFN itself increases the global cellular SUMOylation in a PML-dependent manner. Mass spectrometry-based proteomics enables the large-scale identification of Ubl protein conjugates to determine the sites of modification and the quantitative changes in protein abundance. Importantly, a key difference amongst SUMO paralogs is the ability of SUMO2/3 to form poly-SUMO chains that recruit SUMO ubiquitin ligases such RING finger protein RNF4 and RNF111, thus resulting in the proteasomal degradation of conjugated substrates. Crosstalk between poly-SUMOylation and ISG15 has been reported recently, where increased poly-SUMOylation in response to IFN enhances IFN-induced ISGylation, stabilizes several ISG products in a TRIM25-dependent fashion, and results in enhanced IFN-induced antiviral activities. This contribution will highlight the relevance of the global SUMO proteome and the crosstalk between SUMO, ubiquitin and ISG15 in controlling both the stability and function of specific restriction factors that mediate IFN antiviral defense.
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Affiliation(s)
| | - Pierre Thibault
- Institute for Research in Immunology and Cancer, Montréal, QC, Canada
- Department of Chemistry, University of Montreal, Montréal, QC, Canada
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25
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Tecalco-Cruz AC. Molecular Pathways of Interferon-Stimulated Gene 15: Implications in Cancer. Curr Protein Pept Sci 2021; 22:19-28. [DOI: 10.2174/1389203721999201208200747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/18/2020] [Accepted: 11/02/2020] [Indexed: 12/20/2022]
Abstract
Human interferon-stimulated gene 15 (ISG15) is a 15-kDa ubiquitin-like protein that
can be detected as either free ISG15 or covalently associated with its target proteins through a process
termed ISGylation. Interestingly, extracellular free ISG15 has been proposed as a cytokinelike
protein, whereas ISGylation is a posttranslational modification. ISG15 is a small protein with
implications in some biological processes and pathologies that include cancer. This review highlights
the findings of both free ISG15 and protein ISGylation involved in several molecular pathways,
emerging as central elements in some cancer types.
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Affiliation(s)
- Angeles C. Tecalco-Cruz
- Programa en Ciencias Genomicas, Universidad Autonoma de la Ciudad de Mexico (UACM), Apdo. Postal 03100, Ciudad de Mexico, Mexico
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26
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Cell Surface Profiling of Retinal Müller Glial Cells Reveals Association to Immune Pathways after LPS Stimulation. Cells 2021; 10:cells10030711. [PMID: 33806940 PMCID: PMC8004686 DOI: 10.3390/cells10030711] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 12/19/2022] Open
Abstract
Retinal Müller glial cells (RMG) are involved in virtually every retinal disease; however, the role of these glial cells in neuroinflammation is still poorly understood. Since cell surface proteins play a decisive role in immune system signaling pathways, this study aimed at characterizing the changes of the cell surface proteome of RMG after incubation with prototype immune system stimulant lipopolysaccharide (LPS). While mass spectrometric analysis of the human Müller glia cell line MIO-M1 revealed 507 cell surface proteins in total, with 18 proteins significantly more abundant after stimulation (ratio ≥ 2), the surfaceome of primary RMG comprised 1425 proteins, among them 79 proteins with significantly higher abundance in the stimulated state. Pathway analysis revealed notable association with immune system pathways such as “antigen presentation”, “immunoregulatory interactions between a lymphoid and a non-lymphoid cell” and “cell migration”. We could demonstrate a higher abundance of proteins that are usually ascribed to antigen-presenting cells (APCs) and function to interact with T-cells, suggesting that activated RMG might act as atypical APCs in the course of ocular neuroinflammation. Our data provide a detailed description of the unstimulated and stimulated RMG surfaceome and offer fundamental insights regarding the capacity of RMG to actively participate in neuroinflammation in the retina.
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27
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More than Meets the ISG15: Emerging Roles in the DNA Damage Response and Beyond. Biomolecules 2020; 10:biom10111557. [PMID: 33203188 PMCID: PMC7698331 DOI: 10.3390/biom10111557] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022] Open
Abstract
Maintenance of genome stability is a crucial priority for any organism. To meet this priority, robust signalling networks exist to facilitate error-free DNA replication and repair. These signalling cascades are subject to various regulatory post-translational modifications that range from simple additions of chemical moieties to the conjugation of ubiquitin-like proteins (UBLs). Interferon Stimulated Gene 15 (ISG15) is one such UBL. While classically thought of as a component of antiviral immunity, ISG15 has recently emerged as a regulator of genome stability, with key roles in the DNA damage response (DDR) to modulate p53 signalling and error-free DNA replication. Additional proteomic analyses and cancer-focused studies hint at wider-reaching, uncharacterised functions for ISG15 in genome stability. We review these recent discoveries and highlight future perspectives to increase our understanding of this multifaceted UBL in health and disease.
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28
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Mao K, Geng W, Liao Y, Luo P, Zhong H, Ma P, Xu J, Zhang S, Tan Q, Jin Y. Identification of robust genetic signatures associated with lipopolysaccharide-induced acute lung injury onset and astaxanthin therapeutic effects by integrative analysis of RNA sequencing data and GEO datasets. Aging (Albany NY) 2020; 12:18716-18740. [PMID: 32969837 PMCID: PMC7585091 DOI: 10.18632/aging.104042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/19/2020] [Indexed: 01/24/2023]
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are life-threatening clinical conditions predominantly arising from uncontrolled inflammatory reactions. It has been found that the administration of astaxanthin (AST) can exert protective effects against lipopolysaccharide (LPS)-induced ALI; however, the robust genetic signatures underlying LPS induction and AST treatment remain obscure. Here we performed a statistical meta-analysis of five publicly available gene expression datasets from LPS-induced ALI mouse models, conducted RNA-sequencing (RNA-seq) to screen differentially expressed genes (DEGs) in response to LPS administration and AST treatment, and integrative analysis to determine robust genetic signatures associated with LPS-induced ALI onset and AST administration. Both the meta-analyses and our experimental data identified a total of 198 DEGs in response to LPS administration, and 11 core DEGs (Timp1, Ly6i, Cxcl13, Irf7, Cxcl5, Ccl7, Isg15, Saa3, Saa1, Tgtp1, and Gbp11) were identified to be associated with AST therapeutic effects. Further, the 11 core DEGs were verified by quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC), and functional enrichment analysis revealed that these genes are primarily associated with neutrophils and chemokines. Collectively, these findings unearthed the robust genetic signatures underlying LPS administration and the molecular targets of AST for ameliorating ALI/ARDS which provide directions for further research.
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Affiliation(s)
- Kaimin Mao
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Wei Geng
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Yuhan Liao
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Ping Luo
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Hua Zhong
- College of Life Sciences, Wuhan University, Hubei Province, Wuhan, 430072, China
| | - Pei Ma
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Juanjuan Xu
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Shuai Zhang
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Qi Tan
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Yang Jin
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
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29
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Kang JA, Jeon YJ. Emerging Roles of USP18: From Biology to Pathophysiology. Int J Mol Sci 2020; 21:ijms21186825. [PMID: 32957626 PMCID: PMC7555095 DOI: 10.3390/ijms21186825] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/14/2020] [Accepted: 09/14/2020] [Indexed: 12/20/2022] Open
Abstract
Eukaryotic proteomes are enormously sophisticated through versatile post-translational modifications (PTMs) of proteins. A large variety of code generated via PTMs of proteins by ubiquitin (ubiquitination) and ubiquitin-like proteins (Ubls), such as interferon (IFN)-stimulated gene 15 (ISG15), small ubiquitin-related modifier (SUMO) and neural precursor cell expressed, developmentally downregulated 8 (NEDD8), not only provides distinct signals but also orchestrates a plethora of biological processes, thereby underscoring the necessity for sophisticated and fine-tuned mechanisms of code regulation. Deubiquitinases (DUBs) play a pivotal role in the disassembly of the complex code and removal of the signal. Ubiquitin-specific protease 18 (USP18), originally referred to as UBP43, is a major DUB that reverses the PTM of target proteins by ISG15 (ISGylation). Intriguingly, USP18 is a multifaceted protein that not only removes ISG15 or ubiquitin from conjugated proteins in a deconjugating activity-dependent manner but also acts as a negative modulator of type I IFN signaling, irrespective of its catalytic activity. The function of USP18 has become gradually clear, but not yet been completely addressed. In this review, we summarize recent advances in our understanding of the multifaceted roles of USP18. We also highlight new insights into how USP18 is implicated not only in physiology but also in pathogenesis of various human diseases, involving infectious diseases, neurological disorders, and cancers. Eventually, we integrate a discussion of the potential of therapeutic interventions for targeting USP18 for disease treatment.
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Affiliation(s)
- Ji An Kang
- Department of Biochemistry, Chungnam National University College of Medicine, Daejeon 35015, Korea;
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Korea
| | - Young Joo Jeon
- Department of Biochemistry, Chungnam National University College of Medicine, Daejeon 35015, Korea;
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Korea
- Correspondence: ; Tel.: +82-42-280-6766; Fax: +82-42-280-6769
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30
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Wang Y, Ren K, Li S, Yang C, Chen L. Interferon stimulated gene 15 promotes Zika virus replication through regulating Jak/STAT and ISGylation pathways. Virus Res 2020; 287:198087. [PMID: 32738280 DOI: 10.1016/j.virusres.2020.198087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/18/2020] [Accepted: 07/01/2020] [Indexed: 11/17/2022]
Abstract
Zika virus is an emergent arbovirus that has caused a public health emergency in South America. Zika virus infection is known to cause microcephaly and other congenital defects and Guillain-Barré syndrome. Unfortunately no direct antiviral treatments are available at present. IFN-stimulated gene 15 (ISG15) is one of the most upregulated host genes following type I interferon treatment or virus infections. ISG15 has been shown to have antiviral effect on a wide variety of viruses although pro-HCV replication was observed. However, the effect of ISG15 on ZIKV infection is not well defined. In this study, we try to clarify the effect of ISG15 on ZIKV replication and to further dissect the underlying mechanism. Our results indicated that ZIKV infection led to the increased expression of ISG15 in A549, 2fTGH, U5A cells. Overexpression of ISG15 stimulated ZIKV replication although ISG15 did not affect the viral entry. Further studies showed that this proviral effect was mediated through Jak/STAT signaling pathway and was ISGylation-dependent. Taken together, our work demonstrates that ISG15 is an important host factor exploited by ZIKV to facilitate its replication and might serve as a potential target for the development of novel antiviral agents.
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Affiliation(s)
- Yancui Wang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Kai Ren
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Shilin Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Chunhui Yang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China.
| | - Limin Chen
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China; Toronto General Research Institute, University of Toronto, Toronto, Ontario, Canada.
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31
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Ubiquitin-like proteins in the DNA damage response: the next generation. Essays Biochem 2020; 64:737-752. [DOI: 10.1042/ebc20190095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/20/2020] [Accepted: 05/01/2020] [Indexed: 12/29/2022]
Abstract
AbstractDNA suffers constant insult from a variety of endogenous and exogenous sources. To deal with the arising lesions, cells have evolved complex and coordinated pathways, collectively termed the DNA damage response (DDR). Importantly, an improper DDR can lead to genome instability, premature ageing and human diseases, including cancer as well as neurodegenerative disorders. As a crucial process for cell survival, regulation of the DDR is multi-layered and includes several post-translational modifications. Since the discovery of ubiquitin in 1975 and the ubiquitylation cascade in the early 1980s, a number of ubiquitin-like proteins (UBLs) have been identified as post-translational modifiers. However, while the importance of ubiquitin and the UBLs SUMO and NEDD8 in DNA damage repair and signalling is well established, the roles of the remaining UBLs in the DDR are only starting to be uncovered. Herein, we revise the current status of the UBLs ISG15, UBL5, FAT10 and UFM1 as emerging co-regulators of DDR processes. In fact, it is becoming clear that these post-translational modifiers play important pleiotropic roles in DNA damage and/or associated stress-related cellular responses. Expanding our understanding of the molecular mechanisms underlying these emerging UBL functions will be fundamental for enhancing our knowledge of the DDR and potentially provide new therapeutic strategies for various human diseases including cancer.
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32
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Yu J, Qin B, Lou Z. Ubiquitin and ubiquitin-like molecules in DNA double strand break repair. Cell Biosci 2020; 10:13. [PMID: 32071713 PMCID: PMC7014694 DOI: 10.1186/s13578-020-0380-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/30/2020] [Indexed: 12/23/2022] Open
Abstract
Both environmental and endogenous factors induce various forms of DNA damage. DNA double strand break (DSB) is the most deleterious DNA lesion. The swift initiation of a complexed network of interconnected pathways to repair the DNA lesion is essential for cell survival. In the past years, the roles of ubiquitin and ubiquitin-like proteins in DNA damage response and DNA repair has been explored. These findings help us better understand the complicated mechanism of DSB signaling pathways.
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Affiliation(s)
- Jia Yu
- 1Division of Clinical Pharmacology, Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN 55905 USA
| | - Bo Qin
- 1Division of Clinical Pharmacology, Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN 55905 USA.,2Department of Oncology, Mayo Clinic, Rochester, MN 55905 USA.,3Gastrointestinal Research Unit, Mayo Clinic, Rochester, MN 55905 USA
| | - Zhenkun Lou
- 2Department of Oncology, Mayo Clinic, Rochester, MN 55905 USA
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33
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Abstract
The host response to viral infection includes the induction of type I interferons and the subsequent upregulation of hundreds of interferon-stimulated genes. Ubiquitin-like protein ISG15 is an interferon-induced protein that has been implicated as a central player in the host antiviral response. Over the past 15 years, efforts to understand how ISG15 protects the host during infection have revealed that its actions are diverse and pathogen-dependent. In this Review, we describe new insights into how ISG15 directly inhibits viral replication and discuss the recent finding that ISG15 modulates the host damage and repair response, immune response and other host signalling pathways. We also explore the viral immune-evasion strategies that counteract the actions of ISG15. These findings are integrated with a discussion of the recent identification of ISG15-deficient individuals and a cellular receptor for ISG15 that provides new insights into how ISG15 shapes the host response to viral infection. Ubiquitin-like protein ISG15 is an interferon-induced protein that has been implicated as a central player in the host antiviral response. In this Review, Perng and Lenschow provide new insights into how ISG15 restricts and shapes the host response to viral infection and the viral immune-evasion strategies that counteract ISG15.
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Affiliation(s)
- Yi-Chieh Perng
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Deborah J Lenschow
- Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA. .,Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA.
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34
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An Approach for the Identification of Proteins Modified with ISG15. Methods Mol Biol 2019. [PMID: 31256383 DOI: 10.1007/978-1-4939-9055-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Interferon-stimulated gene 15 (ISG15) encodes a protein that is most upregulated by type I interferon stimulation and, upon activation, is conjugated to various target proteins in a process known as ISGylation. ISGylation has been shown to have roles in various biological phenomena such as viral infection and cancer. To gain further insight into the function of ISGylation, it would be useful to be able to identify ISGylated proteins. Here, we describe a method for the identification of proteins modified with ISG15. This method involves the generation of stable ISG15-transfectant cells, followed by affinity purification, and then identification of the ISGylated proteins by mass spectrometry.
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35
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Han HG, Moon HW, Jeon YJ. ISG15 in cancer: Beyond ubiquitin-like protein. Cancer Lett 2018; 438:52-62. [DOI: 10.1016/j.canlet.2018.09.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 09/06/2018] [Indexed: 01/08/2023]
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36
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USP18 - a multifunctional component in the interferon response. Biosci Rep 2018; 38:BSR20180250. [PMID: 30126853 PMCID: PMC6240716 DOI: 10.1042/bsr20180250] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/16/2018] [Accepted: 08/17/2018] [Indexed: 12/20/2022] Open
Abstract
Ubiquitin-specific proteases (USPs) represent the largest family of deubiquitinating enzymes (DUB). These proteases cleave the isopeptide bond between ubiquitin and a lysine residue of a ubiquitin-modified protein. USP18 is a special member of the USP family as it only deconjugates the ubiquitin-like protein ISG15 (interferon-stimulated gene (ISG) 15) from target proteins but is not active towards ubiquitin. Independent of its protease activity, USP18 functions as a major negative regulator of the type I interferon response showing that USP18 is – at least – a bifunctional protein. In this review, we summarise our current knowledge of protease-dependent and -independent functions of USP18 and discuss the structural basis of its dual activity.
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37
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Albert M, Bécares M, Falqui M, Fernández-Lozano C, Guerra S. ISG15, a Small Molecule with Huge Implications: Regulation of Mitochondrial Homeostasis. Viruses 2018; 10:v10110629. [PMID: 30428561 PMCID: PMC6265978 DOI: 10.3390/v10110629] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/08/2018] [Accepted: 11/09/2018] [Indexed: 12/12/2022] Open
Abstract
Viruses are responsible for the majority of infectious diseases, from the common cold to HIV/AIDS or hemorrhagic fevers, the latter with devastating effects on the human population. Accordingly, the development of efficient antiviral therapies is a major goal and a challenge for the scientific community, as we are still far from understanding the molecular mechanisms that operate after virus infection. Interferon-stimulated gene 15 (ISG15) plays an important antiviral role during viral infection. ISG15 catalyzes a ubiquitin-like post-translational modification termed ISGylation, involving the conjugation of ISG15 molecules to de novo synthesized viral or cellular proteins, which regulates their stability and function. Numerous biomedically relevant viruses are targets of ISG15, as well as proteins involved in antiviral immunity. Beyond their role as cellular powerhouses, mitochondria are multifunctional organelles that act as signaling hubs in antiviral responses. In this review, we give an overview of the biological consequences of ISGylation for virus infection and host defense. We also compare several published proteomic studies to identify and classify potential mitochondrial ISGylation targets. Finally, based on our recent observations, we discuss the essential functions of mitochondria in the antiviral response and examine the role of ISG15 in the regulation of mitochondrial processes, specifically OXPHOS and mitophagy.
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Affiliation(s)
- Manuel Albert
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma, E-28029 Madrid, Spain.
| | - Martina Bécares
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma, E-28029 Madrid, Spain.
| | - Michela Falqui
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma, E-28029 Madrid, Spain.
| | - Carlos Fernández-Lozano
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma, E-28029 Madrid, Spain.
| | - Susana Guerra
- Department of Preventive Medicine, Public Health and Microbiology, Universidad Autónoma, E-28029 Madrid, Spain.
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38
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Wang Y, Ding Q, Lu YC, Cao SY, Liu QX, Zhang L. Interferon-stimulated gene 15 enters posttranslational modifications of p53. J Cell Physiol 2018; 234:5507-5518. [PMID: 30317575 DOI: 10.1002/jcp.27347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/17/2018] [Indexed: 12/27/2022]
Abstract
The tumor suppressor protein p53 is a central governor of various cellular signals. It is well accepted that ubiquitination as well as ubiquitin-like (UBL) modifications of p53 protein is critical in the control of its activity. Interferon-stimulated gene 15 (ISG15) is a well-known UBL protein with pleiotropic functions, serving both as a free intracellular molecule and as a modifier by conjugating to target proteins. Initially, attentions have historically focused on the antiviral effects of ISG15 pathway. Remarkably, a significant role in the processes of autophagy, DNA repair, and protein translation provided considerable insight into the new functions of ISG15 pathway. Despite the deterministic revelation of the relation between ISG15 and p53, the functional consequence of p53 ISGylation appears somewhat confused. More important, more recent studies have hinted p53 ubiquitination or other UBL modifications that might interconnect with its ISGylation. Here, we aim to summarize the current knowledge of p53 ISGylation and the differences in other significant modifications, which would be beneficial for the development of p53-based cancer therapy.
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Affiliation(s)
- Yang Wang
- School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,The Key Laboratory of Major Autoimmune Disease, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China
| | - Qi Ding
- School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,The Key Laboratory of Major Autoimmune Disease, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China
| | - Yu-Chen Lu
- School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,The Key Laboratory of Major Autoimmune Disease, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China
| | - Shi-Yang Cao
- School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,The Key Laboratory of Major Autoimmune Disease, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China
| | - Qing-Xue Liu
- School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,The Key Laboratory of Major Autoimmune Disease, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China
| | - Lei Zhang
- School of Pharmacy, Anhui Medical University, Hefei, China.,Institute for Liver Diseases of Anhui Medical University, Anhui Medical University, Hefei, China.,The Key Laboratory of Major Autoimmune Disease, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Anhui Medical University, Hefei, China
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39
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Tan Y, Zhou G, Wang X, Chen W, Gao H. USP18 promotes breast cancer growth by upregulating EGFR and activating the AKT/Skp2 pathway. Int J Oncol 2018; 53:371-383. [PMID: 29749454 DOI: 10.3892/ijo.2018.4387] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 04/11/2018] [Indexed: 12/12/2022] Open
Abstract
Recent studies have suggested that ubiquitin-specific peptidase (USP)18 may act as an oncogene in various types of cancer. Although the role of USP18 in breast cancer cell lines has been elucidated, the underlying mechanisms and clinical role of USP18 in breast cancer are currently not well understood. The bioinformatics analysis and experimental results of the present study demonstrated that aberrant promoter methylation led to increased expression of USP18 in breast cancer. In addition, correlation analysis suggested that a negative correlation between methylation and USP18 mRNA expression was observed in The Cancer Genome Atlas database. USP18 promoted cell proliferation, colony formation and cell cycle progression in vitro. Furthermore, the Gene Set Enrichment Analysis results demonstrated that USP18 may be negatively associated with apoptosis in patients with breast cancer. Bioinformatics analysis results indicated that USP18 was also revealed to be associated with the protein kinase B (AKT) signaling pathway and mammary tumorigenesis in vivo. In addition, the results indicated that USP18 may promote the epidermal growth factor (EGF)-mediated EGF receptor (EGFR)/AKT/S‑phase kinase-associated protein 2 (Skp2) pathway by upregulating EGFR and Skp2 in a AKT/forkhead box O3-dependent manner in breast cancer. The results of bioinformatics analysis revealed that increased USP18 expression was associated with a higher TNM stage and unfavorable prognosis in clinical patients. USP18 was also significantly enhanced in patients with human epidermal growth factor receptor 2-positive breast cancer; furthermore, Kaplan‑Meier curve demonstrated that combining USP18 and Skp2 expression improved prognostic capability in breast cancer. Taken together, these results suggested that USP18 may serve a key role in breast cancer development by upregulating EGFR and subsequently activating the AKT/Skp2 feedback loop pathway. The role of USP18 in breast cancer provides a novel insight into the clinical application of the USP18/AKT/Skp2 pathway.
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Affiliation(s)
- Yawen Tan
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Guanglin Zhou
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Xianming Wang
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Weicai Chen
- Department of Breast and Thyroid Surgery, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong 518035, P.R. China
| | - Haidong Gao
- Department of Breast Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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40
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Wang Z, Zhu WG, Xu X. Ubiquitin-like modifications in the DNA damage response. Mutat Res 2017; 803-805:56-75. [PMID: 28734548 DOI: 10.1016/j.mrfmmm.2017.07.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/03/2017] [Accepted: 07/03/2017] [Indexed: 12/14/2022]
Abstract
Genomic DNA is damaged at an extremely high frequency by both endogenous and environmental factors. An improper response to DNA damage can lead to genome instability, accelerate the aging process and ultimately cause various human diseases, including cancers and neurodegenerative disorders. The mechanisms that underlie the cellular DNA damage response (DDR) are complex and are regulated at many levels, including at the level of post-translational modification (PTM). Since the discovery of ubiquitin in 1975 and ubiquitylation as a form of PTM in the early 1980s, a number of ubiquitin-like modifiers (UBLs) have been identified, including small ubiquitin-like modifiers (SUMOs), neural precursor cell expressed, developmentally down-regulated 8 (NEDD8), interferon-stimulated gene 15 (ISG15), human leukocyte antigen (HLA)-F adjacent transcript 10 (FAT10), ubiquitin-fold modifier 1 (UFRM1), URM1 ubiquitin-related modifier-1 (URM1), autophagy-related protein 12 (ATG12), autophagy-related protein 8 (ATG8), fan ubiquitin-like protein 1 (FUB1) and histone mono-ubiquitylation 1 (HUB1). All of these modifiers have known roles in the cellular response to various forms of stress, and delineating their underlying molecular mechanisms and functions is fundamental in enhancing our understanding of human disease and longevity. To date, however, the molecular mechanisms and functions of these UBLs in the DDR remain largely unknown. This review summarizes the current status of PTMs by UBLs in the DDR and their implication in cancer diagnosis, therapy and drug discovery.
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Affiliation(s)
- Zhifeng Wang
- Guangdong Key Laboratory of Genome Stability & Disease Prevention, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060, China
| | - Wei-Guo Zhu
- Guangdong Key Laboratory of Genome Stability & Disease Prevention, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060, China
| | - Xingzhi Xu
- Guangdong Key Laboratory of Genome Stability & Disease Prevention, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060, China; Beijing Key Laboratory of DNA Damage Response, Capital Normal University College of Life Sciences, Beijing 100048, China.
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41
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Jeon YJ, Park JH, Chung CH. Interferon-Stimulated Gene 15 in the Control of Cellular Responses to Genotoxic Stress. Mol Cells 2017; 40:83-89. [PMID: 28241406 PMCID: PMC5339507 DOI: 10.14348/molcells.2017.0027] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 02/23/2017] [Indexed: 12/15/2022] Open
Abstract
Error-free replication and repair of DNA are pivotal to organisms for faithful transmission of their genetic information. Cells orchestrate complex signaling networks that sense and resolve DNA damage. Post-translational protein modifications by ubiquitin and ubiquitin-like proteins, including SUMO and NEDD8, are critically involved in DNA damage response (DDR) and DNA damage tolerance (DDT). The expression of interferon-stimulated gene 15 (ISG15), the first identified ubiquitin-like protein, has recently been shown to be induced under various DNA damage conditions, such as exposure to UV, camptothecin, and doxorubicin. Here we overview the recent findings on the role of ISG15 and its conjugation to target proteins (e.g., p53, ΔNp63α, and PCNA) in the control of cellular responses to genotoxic stress, such as the inhibition of cell growth and tumorigenesis.
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Affiliation(s)
- Young Joo Jeon
- Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015,
Korea
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015,
Korea
| | - Jong Ho Park
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826,
Korea
| | - Chin Ha Chung
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826,
Korea
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42
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Zhao S, Wu Y, Gao H, Evans A, Zeng SM. Roles of interferon-stimulated gene 15 protein in bovine embryo development. Reprod Fertil Dev 2017; 29:1209-1216. [DOI: 10.1071/rd15209] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 03/25/2016] [Indexed: 01/19/2023] Open
Abstract
Interferon (IFN)-stimulated gene 15 (ISG15) is one of several proteins induced by conceptus-derived Type I or II IFNs in the uterus, and is implicated as an important factor in determining uterine receptivity to embryos in ruminants. But little is known about the role the ISG15 gene or gene product plays during embryo development. In the present study, both the expression profile and function of ISG15 were investigated in early bovine embryos in vitro. ISG15 mRNA was detectable in Day 0, 2, 6 and 8 bovine embryos, but IFN-τ (IFNT) mRNA only appeared from Day 6. This means that embryonic expression of ISG15 on Days 0 and 2 was not induced by embryonic IFNT. However, ISG15 mRNA expression paralleled the expression of IFNT mRNA in Day 6 and 8 embryos. ISG15–lentivirus interference plasmid (ISG15i) was injected into 2-cell embryos to knockdown ISG15 expression. This resulted in decreases in the proportion of hatching blastocysts, the diameter of blastocysts and cell number per diameter of blastocysts compared with control embryos. In addition, ISG15i inhibited IFNT, Ets2 (E26 oncogene homolog 2) mRNA and connexion 43 protein expression in Day 8 blastocysts, whereas exogenous IFNT treatment (100 ng mL–1, from Day 4 to Day 8) improved ISG15 mRNA and connexion 43 protein expression. In conclusion, it appears that ISG15 is involved in early bovine embryo development and that it regulates IFNT expression in the blastocyst.
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43
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Toshchakov V, Jones BW, Lentschat A, Silva A, Perera PY, Thomas K, Cody MJ, Shuling Zhang, Williams BR, Major J, Hamilton TA, Fenton MJ, Vogel SN. TLR2 and TLR4 agonists stimulate unique repertoires of host resistance genes in murine macrophages: interferon-β-dependent signaling in TLR4-mediated responses. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/09680519030090030501] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
That TLRs share a common MyD88-dependent signaling pathway which results in the generation of nuclear DNA-binding proteins, such as NF-κB, is a well-accepted paradigm. However, studies from our laboratories and others suggested that TLR4 agonists elicit a more diverse pattern of gene expression in murine macrophages than TLR2 agonists. The data presented show that activation of TLR4 by Escherichia coli LPS results in an MyD88-independent, TIRAP/Mal-dependent signaling pathway that, in turn, leads to early induction of interferon-β (IFN-β). IFN-β , in turn, acts in an autocrine/paracrine fashion on the macrophage to activate STAT1-containing DNA binding complexes that participate in the induction of genes not expressed in response to natural or synthetic TLR2 agonists. These data support the hypothesis that the host response to microbes is controlled by TLRs at two levels: (i) the `sensing' of differences in microbial structures through the TLR extracellular domain; and (ii) signaling pathways that are initiated via interactions through unique intracytoplasmic regions of different TLRs with adaptor proteins.
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Affiliation(s)
- Vladimir Toshchakov
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA
| | - Bryan W. Jones
- The Pulmonary Center, Boston University Medical School, Boston, Massachusetts, USA
| | - Arnd Lentschat
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA
| | | | - Pin-Yu Perera
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA
| | - Karen Thomas
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA
| | - M. Joshua Cody
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA
| | - Shuling Zhang
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA
| | | | | | | | - Matthew J. Fenton
- The Pulmonary Center, Boston University Medical School, Boston, Massachusetts, USA
| | - Stefanie N. Vogel
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland, USA,
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Qian W, Wei X, Zhou H, Jin M. Molecular cloning and functional analysis of duck ubiquitin-specific protease 18 (USP18) gene. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 62:39-47. [PMID: 27133094 DOI: 10.1016/j.dci.2016.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/07/2016] [Accepted: 04/07/2016] [Indexed: 06/05/2023]
Abstract
In mammals, ubiquitin-specific protease 18 (USP18) is an interferon (IFN)-inducible gene and is a negative regulator of Toll-like receptor-mediated nuclear factor kappa B (NF-κB) activation. The role of USP18 in ducks (duUSP18) remains poorly understood. In the present study, we cloned and characterized the full-length coding sequence of duUSP18 from duck embryo fibroblasts (DEFs). In healthy ducks, duUSP18 transcripts were broadly expressed in different tissues, with higher expression levels in the spleen, lung and kidney. Quantitative real-time PCR (qRT-PCR) analysis revealed that duUSP18 could be induced by treatment with Poly(I:C) or LPS. Overexpression of duUSP18 inhibited NF-κB and IFN-β expression. Furthermore, deletion mutant analysis revealed that the duUSP18 region between aa 75 and 304 was essential for inhibiting NF-κB. In addition, overexpression of duUSP18 also suppressed the secretion of NF-κB-dependent proinflammatory cytokines. Taken together, these results suggest that duUSP18 regulates duck innate immune responses.
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Affiliation(s)
- Wei Qian
- State Key Laboratory of Agriculture Microbiology, Huazhong Agricultural University, Wuhan, 430070, PR China; Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Xiaoqin Wei
- State Key Laboratory of Agriculture Microbiology, Huazhong Agricultural University, Wuhan, 430070, PR China; Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China; College of Agricultural and Animal Husbandry, Tibet University, Linzhi, 860000, PR China
| | - Hongbo Zhou
- State Key Laboratory of Agriculture Microbiology, Huazhong Agricultural University, Wuhan, 430070, PR China; Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China; Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Meilin Jin
- State Key Laboratory of Agriculture Microbiology, Huazhong Agricultural University, Wuhan, 430070, PR China; Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China; Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, PR China.
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Kim YJ, Kim ET, Kim YE, Lee MK, Kwon KM, Kim KI, Stamminger T, Ahn JH. Consecutive Inhibition of ISG15 Expression and ISGylation by Cytomegalovirus Regulators. PLoS Pathog 2016; 12:e1005850. [PMID: 27564865 PMCID: PMC5001722 DOI: 10.1371/journal.ppat.1005850] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 08/08/2016] [Indexed: 11/18/2022] Open
Abstract
Interferon-stimulated gene 15 (ISG15) encodes an ubiquitin-like protein that covalently conjugates protein. Protein modification by ISG15 (ISGylation) is known to inhibit the replication of many viruses. However, studies on the viral targets and viral strategies to regulate ISGylation-mediated antiviral responses are limited. In this study, we show that human cytomegalovirus (HCMV) replication is inhibited by ISGylation, but the virus has evolved multiple countermeasures. HCMV-induced ISG15 expression was mitigated by IE1, a viral inhibitor of interferon signaling, however, ISGylation was still strongly upregulated during virus infection. RNA interference of UBE1L (E1), UbcH8 (E2), Herc5 (E3), and UBP43 (ISG15 protease) revealed that ISGylation inhibits HCMV growth by downregulating viral gene expression and virion release in a manner that is more prominent at low multiplicity of infection. A viral regulator pUL26 was found to interact with ISG15, UBE1L, and Herc5, and be ISGylated. ISGylation of pUL26 regulated its stability and inhibited its activities to suppress NF-κB signaling and complement the growth of UL26-null mutant virus. Moreover, pUL26 reciprocally suppressed virus-induced ISGylation independent of its own ISGylation. Consistently, ISGylation was more pronounced in infections with the UL26-deleted mutant virus, whose growth was more sensitive to IFNβ treatment than that of the wild-type virus. Therefore, pUL26 is a viral ISG15 target that also counteracts ISGylation. Our results demonstrate that ISGylation inhibits HCMV growth at multiple steps and that HCMV has evolved countermeasures to suppress ISG15 transcription and protein ISGylation, highlighting the importance of the interplay between virus and ISGylation in productive viral infection. Type I IFN response is a front-line defense against virus infection. Activation of type I IFN signaling leads to expression of a subset of cellular proteins encoded by interferon-stimulated genes (ISGs). ISG15 encodes an ubiquitin-like protein that is covalently conjugated to protein lysine residues. ISG15 modification (ISGylation) of a protein causes changes of protein function. ISGylation is known to inhibit the replication of many viruses, although pro-viral effects of ISGylation are also reported. Given that ISG15 and the enzymes involved in ISGylation are strongly induced upon virus infection, understanding the interplay between virus and ISGylation is an important issue in virus-host interaction. Nevertheless, viral substrates of ISG15 and viral strategies to regulate ISGylation-mediated antiviral responses are limited to only a few examples. In this study we demonstrate that ISGylation suppresses human cytomegalovirus (HCMV) infection but the virus is armed with countermeasures that consecutively reduce ISG15 transcription and protein ISGylation. Interestingly, a viral ISG15 target is found to inhibit ISGylation. This study highlights that ISGylation is a critical innate immune response against HCMV infection and interfering with ISG15-mediated anti-viral immunity is critical for productive viral infection.
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Affiliation(s)
- Ye Ji Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Eui Tae Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Young-Eui Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Myoung Kyu Lee
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Ki Mun Kwon
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Keun Il Kim
- Department of Biological Sciences, Sookmyung Women's University, Seoul, Republic of Korea
| | - Thomas Stamminger
- Institute for Clinical and Molecular Virology, University of Erlangen-Nuremberg, Schlossgarten, Erlangen, Germany
| | - Jin-Hyun Ahn
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
- * E-mail:
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Lipopolysaccharide and Tumor Necrosis Factor Alpha Inhibit Interferon Signaling in Hepatocytes by Increasing Ubiquitin-Like Protease 18 (USP18) Expression. J Virol 2016; 90:5549-5560. [PMID: 27009955 PMCID: PMC4886784 DOI: 10.1128/jvi.02557-15] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 02/29/2016] [Indexed: 12/22/2022] Open
Abstract
Inflammation may be maladaptive to the control of viral infection when it impairs interferon (IFN) responses, enhancing viral replication and spread. Dysregulated immunity as a result of inappropriate innate inflammatory responses is a hallmark of chronic viral infections such as, hepatitis B virus and hepatitis C virus (HCV). Previous studies from our laboratory have shown that expression of an IFN-stimulated gene (ISG), ubiquitin-like protease (USP)18 is upregulated in chronic HCV infection, leading to impaired hepatocyte responses to IFN-α. We examined the ability of inflammatory stimuli, including tumor necrosis factor alpha (TNF-α), lipopolysaccharide (LPS), interleukin-6 (IL-6) and IL-10 to upregulate hepatocyte USP18 expression and blunt the IFN-α response. Human hepatoma cells and primary murine hepatocytes were treated with TNF-α/LPS/IL-6/IL-10 and USP18, phosphorylated (p)-STAT1 and myxovirus (influenza virus) resistance 1 (Mx1) expression was determined. Treatment of Huh7.5 cells and primary murine hepatocytes with LPS and TNF-α, but not IL-6 or IL-10, led to upregulated USP18 expression and induced an IFN-α refractory state, which was reversed by USP18 knockdown. Liver inflammation was induced in vivo using a murine model of hepatic ischemia/reperfusion injury. Hepatic ischemia/reperfusion injury led to an induction of USP18 expression in liver tissue and promotion of lymphocytic choriomeningitis replication. These data demonstrate that certain inflammatory stimuli (TNF-α and LPS) but not others (IL-6 and IL-10) target USP18 expression and thus inhibit IFN signaling. These findings represent a new paradigm for how inflammation alters hepatic innate immune responses, with USP18 representing a potential target for intervention in various inflammatory states. IMPORTANCE Inflammation may prevent the control of viral infection when it impairs the innate immune response, enhancing viral replication and spread. Blunted immunity as a result of inappropriate innate inflammatory responses is a common characteristic of chronic viral infections. Previous studies have shown that expression of certain interferon-stimulated genes is upregulated in chronic HCV infection, leading to impaired hepatocyte responses. In this study, we show that multiple inflammatory stimuli can modulate interferon stimulated gene expression and thus inhibit hepatocyte interferon signaling via USP18 induction. These findings represent a new paradigm for how inflammation alters hepatic innate immune responses, with the induction of USP18 representing a potential target for intervention in various inflammatory states.
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Abstract
Oncogene-mediated cellular transformation is a multistep process involving activation of growth-promoting pathways as well as inactivation of tumor suppressors. We recently found that ISGylation of the p53 tumor suppressor is an important novel mechanism to control its stability. Here we identified that Isg15-dependent regulation of p53 can be enhanced by different oncogenes. We further show that the Src-mediated phosphorylation of p53 on Tyr126 and Tyr220 has a positive effect on p53 ISGylation by enhancing Herc5 binding. In turn, deletion of Isg15 results in accumulation and activation of native p53 in transformed cells thus increasing its anti-cancer activity and suppressing tumorigenesis in mice. We propose that Isg15-dependent degradation of p53 is an alternative pathway for oncogenes to regulate p53 activity, and thus is an attractive pathway for development of new anti-cancer drugs.
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Affiliation(s)
- Yi-Fu Huang
- Institute of Molecular and Cell Biology, Proteos, Singapore
| | - Dmitry V Bulavin
- Institute of Molecular and Cell Biology, Proteos, Singapore; Institute for Research on Cancer and Ageing of Nice (IRCAN), INSERM, U1081-UMR CNRS 7284, University of Nice - Sophia Antipolis, Centre Antoine Lacassagne, Nice, France
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Fernandez-Botran R, Joshi-Barve S, Ghare S, Barve S, Young M, Plankey M, Bordon J. Systemic cytokine and interferon responsiveness Patterns in HIV and HCV mono and co-infections. J Interferon Cytokine Res 2014; 34:885-93. [PMID: 24955730 PMCID: PMC4217006 DOI: 10.1089/jir.2014.0006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/21/2014] [Indexed: 01/21/2023] Open
Abstract
The role of host response-related factors in the fast progression of liver disease in individuals co-infected with HIV and HCV viruses remains poorly understood. This study compared patterns of cytokines, caspase-1 activation, endotoxin exposure in plasma as well as interferon signaling in peripheral blood mononuclear cells from HIV/HCV co-infected (HIV(+)/HCV(+)), HCV mono-infected (HIV(-)/HCV(+)), HIV mono-infected (HIV(+)/HCV(-)) female patients and HIV- and HCV-uninfected women (HIV(-)/HCV(-)) who had enrolled in the Women's Interagency HIV Study (WIHS). HIV(+)/HCV(+) women had higher plasma levels of pro-inflammatory cytokines as well as caspase-1 compared with other groups. Both HIV(+)/HCV(+) and HIV(+)/HCV(-) women had significantly higher sCD14 levels compared with other groups. Peripheral blood mononuclear cells from HCV mono-infected patients had reduced levels of phosphorylation of STAT1 compared with other groups as well as lower basal levels of expression of the IFN-stimulated genes, OAS1, ISG15, and USP18 (UBP43). Basal expression of USP18, a functional antagonist of ISG15, as well as USP18/ISG15 ratios were increased in the HIV(+)/HCV(+) group compared with HIV(-)/HCV(+) and HIV(+)/HCV(-) groups. A more pronounced systemic inflammatory profile as well as increased expression ratios of USP18 to ISG15 may contribute to the more rapid progression of liver disease in HIV(+)/HCV(+) individuals.
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Affiliation(s)
- Rafael Fernandez-Botran
- Department of Pathology and Laboratory Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Swati Joshi-Barve
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Smita Ghare
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Shirish Barve
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Mary Young
- Department of Medicine, Georgetown Medical Center, Washington, District of Columbia
| | - Michael Plankey
- Department of Medicine, Georgetown Medical Center, Washington, District of Columbia
| | - Jose Bordon
- Section of Infectious Diseases, Providence Hospital, Washington, District of Columbia
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Mouse ENU Mutagenesis to Understand Immunity to Infection: Methods, Selected Examples, and Perspectives. Genes (Basel) 2014; 5:887-925. [PMID: 25268389 PMCID: PMC4276919 DOI: 10.3390/genes5040887] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/19/2014] [Accepted: 08/21/2014] [Indexed: 12/30/2022] Open
Abstract
Infectious diseases are responsible for over 25% of deaths globally, but many more individuals are exposed to deadly pathogens. The outcome of infection results from a set of diverse factors including pathogen virulence factors, the environment, and the genetic make-up of the host. The completion of the human reference genome sequence in 2004 along with technological advances have tremendously accelerated and renovated the tools to study the genetic etiology of infectious diseases in humans and its best characterized mammalian model, the mouse. Advancements in mouse genomic resources have accelerated genome-wide functional approaches, such as gene-driven and phenotype-driven mutagenesis, bringing to the fore the use of mouse models that reproduce accurately many aspects of the pathogenesis of human infectious diseases. Treatment with the mutagen N-ethyl-N-nitrosourea (ENU) has become the most popular phenotype-driven approach. Our team and others have employed mouse ENU mutagenesis to identify host genes that directly impact susceptibility to pathogens of global significance. In this review, we first describe the strategies and tools used in mouse genetics to understand immunity to infection with special emphasis on chemical mutagenesis of the mouse germ-line together with current strategies to efficiently identify functional mutations using next generation sequencing. Then, we highlight illustrative examples of genes, proteins, and cellular signatures that have been revealed by ENU screens and have been shown to be involved in susceptibility or resistance to infectious diseases caused by parasites, bacteria, and viruses.
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50
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Yue F, Zhou Z, Wang L, Wang M, Song L. A conserved zinc finger transcription factor GATA involving in the hemocyte production of scallop Chlamys farreri. FISH & SHELLFISH IMMUNOLOGY 2014; 39:125-135. [PMID: 24835782 DOI: 10.1016/j.fsi.2014.05.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 05/04/2014] [Accepted: 05/05/2014] [Indexed: 06/03/2023]
Abstract
GATA are a family of transcription factors characterized by their ability to bind to the DNA sequence "GATA", and involved in a myriad of cellular processes. GATA1/2/3 factors are known as the hematopoietic GATA factors, which play dominated roles in regulating hematopoiesis. In the present study, a gene encoding GATA transcription factor (designed as CfGATA) was cloned and characterized from the scallop Chlamys farreri. The full-length cDNA of CfGATA is of 2058 bp encoding a predicted polypeptide of 457 amino acids with two conserved zinc finger domains, which shared high similarity with other reported GATA1/2/3 proteins. The mRNA transcripts of CfGATA showed higher expression in gills, hepatopancreas, hemocytes and heart, and the CfGATA protein expressed in HEK293 cells was found to be localized specifically in the nuclei. The recombinant CfGATA protein (rCfGATA) exhibited strong ability to bind specific WGATAR DNA sequence by electrophoretic mobility shift assay in vitro. After CfGATA gene was silenced by RNA interference, the hemocyte renewal rate and circulating total hemocyte count (THC) decreased significantly, which was 7.85-fold and 19.46-fold lower than that of PBS control, respectively (P < 0.05). After LPS stimulation, the expression level of CfGATA mRNA decreased significantly in the hemocytes of PBS or EGFP dsRNA treated scallops, which was accompanied by the increase of hemocyte renewal rate and the reduced circulating THC at 24 h. In contrast, the hemocyte renewal rate and circulating THC did not change significantly in CfGATA gene interfered scallops after LPS stimulation. These results suggested that CfGATA, as a conserved GATA1/2/3 transcription factor, plays essential roles in regulating hemocyte production of scallop.
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Affiliation(s)
- Feng Yue
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Rd., Qingdao, Shandong 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi Zhou
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Rd., Qingdao, Shandong 266071, China
| | - Lingling Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Rd., Qingdao, Shandong 266071, China
| | - Mengqiang Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Rd., Qingdao, Shandong 266071, China
| | - Linsheng Song
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Rd., Qingdao, Shandong 266071, China.
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