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Ma WQ, Zhuo AP, Xiao YL, Gao M, Yang YT, Tang LC, Wu YH, Tian D, Fu XF. Human Bone Marrow Derived-Mesenchymal Stem Cells Treatment for Autoimmune Premature Ovarian Insufficiency. Stem Cell Rev Rep 2024; 20:538-553. [PMID: 38049593 DOI: 10.1007/s12015-023-10629-8] [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] [Accepted: 09/08/2023] [Indexed: 12/06/2023]
Abstract
BACKGROUND Premature ovarian insufficiency (POI) is a relatively common gynecologic endocrine disorder, which is hypogonadism associated with amenorrhea, increased levels of gonadotropins, and hypoestrogenism. POI resulting from ovarian autoimmunity is a poorly understood clinical condition lacking effective treatments. This study is aimed to investigate the therapeutic effect of mesenchymal stem cells (MSCs) on autoimmune premature ovarian insufficiency. METHODS In this study, in vivo and in vitro experiments were conducted to clarify the therapeutic effects and possible mechanisms of human bone marrow-derived MSCs (hBMSCs) on autoimmune POI, and to provide an experimental evidence for the treatment of autoimmune POI by hBMSCs. Noteworthy, in this study, we used interferon-gamma (IFN-γ) to induce autoimmune inflammation in human granulosa cell line KGN, simulating the pathophysiological changes of granulosa cells in autoimmune POI, and therefore sought to establish an in vitro cell model of autoimmune POI, which is still lacking in experimental methodology. RESULTS And we found that, in vitro, co-culture of hBMSCs could promote granulosa cell proliferation, inhibit apoptosis, improve hormone synthesis capacity, and reduce the occurrence of pyroptosis; and in vivo, hBMSCs resulted in improved estrous cycle disorders in autoimmune POI mice, increased serum estradiol, decreased follicle-stimulating hormone, improved ovarian morphology, increased number of primordial and primary follicles, decreased number of atretic follicles, and decreased ovarian granulosa cell apoptosis. CONCLUSIONS hBMSCs have therapeutic effects on autoimmune POI both in vitro and in vivo.
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Affiliation(s)
- Wen-Qing Ma
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ai-Ping Zhuo
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Yuan-Ling Xiao
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Meng Gao
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Yu-Tao Yang
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Li-Chao Tang
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Yan-Hong Wu
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Dan Tian
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Xia-Fei Fu
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China.
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2
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Fu Z, Chen S, Zhu Y, Zhang D, Xie P, Jiao Q, Chi J, Xu S, Xue Y, Lu X, Song X, Cristofanilli M, Gradishar WJ, Kalinsky K, Yin Y, Zhang B, Wan Y. Proteolytic regulation of CD73 by TRIM21 orchestrates tumor immunogenicity. SCIENCE ADVANCES 2023; 9:eadd6626. [PMID: 36608132 PMCID: PMC9821867 DOI: 10.1126/sciadv.add6626] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 12/06/2022] [Indexed: 05/24/2023]
Abstract
Despite the rapid utilization of immunotherapy, emerging challenges to the current immune checkpoint blockade need to be resolved. Here, we report that elevation of CD73 levels due to its aberrant turnover is correlated with poor prognosis in immune-cold triple-negative breast cancers (TNBCs). We have identified TRIM21 as an E3 ligase that governs CD73 destruction. Disruption of TRIM21 stabilizes CD73 that in turn enhances CD73-catalyzed production of adenosine, resulting in the suppression of CD8+ T cell function. Replacement of lysine 133, 208, 262, and 321 residues by arginine on CD73 attenuated CD73 ubiquitylation and degradation. Diminishing of CD73 ubiquitylation remarkably promotes tumor growth and impedes antitumor immunity. In addition, a TRIM21high/CD73low signature in a subgroup of human breast malignancies was associated with a favorable immune profile. Collectively, our findings uncover a mechanism that governs CD73 proteolysis and point to a new therapeutic strategy by modulating CD73 ubiquitylation.
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Affiliation(s)
- Ziyi Fu
- Department of Obstetrics and Gynecology, Department of Pharmacology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Siqi Chen
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yueming Zhu
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, USA
| | - Donghong Zhang
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
| | - Ping Xie
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Qiao Jiao
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
| | - Junlong Chi
- Department of Obstetrics and Gynecology, Department of Pharmacology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Shipeng Xu
- Department of Obstetrics and Gynecology, Department of Pharmacology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yifan Xue
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xinghua Lu
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xinxin Song
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | | | - William J. Gradishar
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Kevin Kalinsky
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Yongmei Yin
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Bin Zhang
- Department of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yong Wan
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
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3
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Wu N, Gou X, Hu P, Chen Y, Ji J, Wang Y, Zuo L. Mechanism of autophagy induced by activation of the AMPK/ERK/mTOR signaling pathway after TRIM22-mediated DENV-2 infection of HUVECs. Virol J 2022; 19:228. [PMID: 36587218 PMCID: PMC9805691 DOI: 10.1186/s12985-022-01932-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 11/22/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Dengue virus type 2 (DENV-2) was used to infect primary human umbilical vein endothelial cells (HUVECs) to examine autophagy induced by activation of the adenosine monophosphate-activated protein kinase (AMPK)/extracellular signal-regulated kinase (ERK)/mammalian target of rapamycin (mTOR) signaling pathway following tripartite motif-containing 22 (TRIM22)-mediated DENV-2 infection to further reveal the underlying pathogenic mechanism of DENV-2 infection. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was used to screen putative interference targets of TRIM22 and determine the knockdown efficiency. The effect of TRIM22 knockdown on HUVEC proliferation was determined using the CCK8 assay. Following TRIM22 knockdown, transmission electron microscopy (TEM) was used to determine the ultrastructure of HUVEC autophagosomes and expression of HUVEC autophagy and AMPK pathway-related genes were measured by qRT-PCR. Moreover, HUVEC autophagy and AMPK pathway-related protein expression levels were determined by western blot analysis. Cell cycle and apoptosis were assessed by flow cytometry (FCM) and the autophagosome structure of the HUVECs was observed by TEM. RESULTS Western blot results indicated that TRIM22 protein expression levels increased significantly 36 h after DENV-2 infection, which was consistent with the proteomics prediction. The CCK8 assay revealed that HUVEC proliferation was reduced following TRIM22 knockdown (P < 0.001). The TEM results indicated that HUVEC autolysosomes increased and autophagy was inhibited after TRIM22 knockdown. The qRT-PCR results revealed that after TRIM22 knockdown, the expression levels of antithymocyte globulin 7 (ATG7), antithymocyte globulin 5 (ATG5), Beclin1, ERK, and mTOR genes decreased (P < 0.01); however, the expression of AMPK genes (P < 0.05) and P62 genes (P < 0.001) increased. FCM revealed that following TRIM22 knockdown, the percentage of HUVECs in the G2 phase increased (P < 0.001) along with cell apoptosis. The effect of TRIM22 overexpression on HUVEC autophagy induced by DENV-2 infection and AMPK pathways decreased after adding an autophagy inhibitor. CONCLUSIONS In HUVECs, TRIM22 protein positively regulates autophagy and may affect autophagy through the AMPK/ERK/mTOR signaling pathway. Autophagy is induced by activation of the AMPK/ERK/mTOR signaling pathway following TRIM22-mediated DENV-2 infection of HUVECs.
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Affiliation(s)
- Ning Wu
- grid.413458.f0000 0000 9330 9891Chemistry and Biochemistry Laboratory, Guizhou Medical University, Guiyang, China
| | - Xiaoqin Gou
- grid.413458.f0000 0000 9330 9891Chemistry and Biochemistry Laboratory, Guizhou Medical University, Guiyang, China
| | - Pan Hu
- grid.413458.f0000 0000 9330 9891Chemistry and Biochemistry Laboratory, Guizhou Medical University, Guiyang, China
| | - Yao Chen
- grid.413458.f0000 0000 9330 9891Chemistry and Biochemistry Laboratory, Guizhou Medical University, Guiyang, China
| | - Jinzhong Ji
- grid.413458.f0000 0000 9330 9891Chemistry and Biochemistry Laboratory, Guizhou Medical University, Guiyang, China
| | - Yuanying Wang
- grid.413458.f0000 0000 9330 9891Chemistry and Biochemistry Laboratory, Guizhou Medical University, Guiyang, China
| | - Li Zuo
- grid.413458.f0000 0000 9330 9891Department of Immunology, Guizhou Medical University, Guiyang, China
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Pagani I, Poli G, Vicenzi E. TRIM22. A Multitasking Antiviral Factor. Cells 2021; 10:cells10081864. [PMID: 34440633 PMCID: PMC8391480 DOI: 10.3390/cells10081864] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/03/2021] [Accepted: 07/16/2021] [Indexed: 02/06/2023] Open
Abstract
Viral invasion of target cells triggers an immediate intracellular host defense system aimed at preventing further propagation of the virus. Viral genomes or early products of viral replication are sensed by a number of pattern recognition receptors, leading to the synthesis and production of type I interferons (IFNs) that, in turn, activate a cascade of IFN-stimulated genes (ISGs) with antiviral functions. Among these, several members of the tripartite motif (TRIM) family are antiviral executors. This article will focus, in particular, on TRIM22 as an example of a multitarget antiviral member of the TRIM family. The antiviral activities of TRIM22 against different DNA and RNA viruses, particularly human immunodeficiency virus type 1 (HIV-1) and influenza A virus (IAV), will be discussed. TRIM22 restriction of virus replication can involve either direct interaction of TRIM22 E3 ubiquitin ligase activity with viral proteins, or indirect protein–protein interactions resulting in control of viral gene transcription, but also epigenetic effects exerted at the chromatin level.
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Affiliation(s)
- Isabel Pagani
- Viral Pathogenesis and Biosafety Unit, IRCCS-Ospedale San Raffaele, 20132 Milan, Italy;
| | - Guido Poli
- Human Immuno-Virology Unit, IRCCS-Ospedale San Raffaele, 20132 Milan, Italy;
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Elisa Vicenzi
- Viral Pathogenesis and Biosafety Unit, IRCCS-Ospedale San Raffaele, 20132 Milan, Italy;
- Correspondence:
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5
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Genetic Exchange of Lung-Derived Exosome to Brain Causing Neuronal Changes on COVID-19 Infection. Mol Neurobiol 2021; 58:5356-5368. [PMID: 34312772 PMCID: PMC8313419 DOI: 10.1007/s12035-021-02485-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023]
Abstract
The pandemic of novel coronavirus 2 (SARS-CoV-2) has made global chaos for normal human living. Despite common COVID-19 symptoms, variability in clinical phenotypes was reported worldwide. Reports on SARS-CoV-2 suggest causing neurological manifestation. In addition, the susceptibility of SARS-CoV-2 in patients with neurodegenerative diseases and its complexity are largely unclear. Here, we aimed to demonstrate the possible transport of exosome from SARS-CoV-2-infected lungs to the brain regions associated with neurodegenerative diseases using multiple transcriptome datasets of SARS-CoV-2-infected lungs, RNA profiles from lung exosome, and gene expression profiles of the human brain. Upon transport, the transcription factors localized in the exosome regulate genes at lateral substantia nigra, medial substantia nigra, and superior frontal gyrus regions of Parkinson's disease (PD) and frontal cortex, hippocampus, and temporal cortex of Alzheimer's disease (AD). On SARS-CoV-2 infection, BCL3, JUND, MXD1, IRF2, IRF9, and STAT1 transcription factors in the exosomes influence the neuronal gene regulatory network and accelerate neurodegeneration. STAT1 transcription factor regulates 64 PD genes at lateral substantia nigra, 65 at superior frontal gyrus, and 19 at medial substantia nigra. Similarly, in AD, STAT1 regulates 74 AD genes at the temporal cortex, 40 genes at the hippocampus, and 16 genes at the frontal cortex. We further demonstrate that dysregulated neuronal genes showed involvement in immune response, signal transduction, apoptosis, and stress response process. In conclusion, SARS-CoV-2 may dysregulate neuronal gene regulatory network through exosomes that attenuate disease severity of neurodegeneration.
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6
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Schulert GS, Pickering AV, Do T, Dhakal S, Fall N, Schnell D, Medvedovic M, Salomonis N, Thornton S, Grom AA. Monocyte and bone marrow macrophage transcriptional phenotypes in systemic juvenile idiopathic arthritis reveal TRIM8 as a mediator of IFN-γ hyper-responsiveness and risk for macrophage activation syndrome. Ann Rheum Dis 2020; 80:617-625. [PMID: 33277241 DOI: 10.1136/annrheumdis-2020-217470] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVES Systemic juvenile idiopathic arthritis (SJIA) confers high risk for macrophage activation syndrome (MAS), a life-threatening cytokine storm driven by interferon (IFN)-γ. SJIA monocytes display IFN-γ hyper-responsiveness, but the molecular basis of this remains unclear. The objective of this study is to identify circulating monocyte and bone marrow macrophage (BMM) polarisation phenotypes in SJIA including molecular features contributing to IFN response. METHODS Bulk RNA-seq was performed on peripheral blood monocytes (n=26 SJIA patients) and single cell (sc) RNA-seq was performed on BMM (n=1). Cultured macrophages were used to define consequences of tripartite motif containing 8 (TRIM8) knockdown on IFN-γ signalling. RESULTS Bulk RNA-seq of SJIA monocytes revealed marked transcriptional changes in patients with elevated ferritin levels. We identified substantial overlap with multiple polarisation states but little evidence of IFN-induced signature. Interestingly, among the most highly upregulated genes was TRIM8, a positive regulator of IFN-γ signalling. In contrast to PBMC from SJIA patients without MAS, scRNA-seq of BMM from a patient with SJIA and MAS identified distinct subpopulations of BMM with altered transcriptomes, including upregulated IFN-γ response pathways. These BMM also showed significantly increased expression of TRIM8. In vitro knockdown of TRIM8 in macrophages significantly reduced IFN-γ responsiveness. CONCLUSIONS Macrophages with an 'IFN-γ response' phenotype and TRIM8 overexpression were expanded in the bone marrow from an MAS patient. TRIM8 is also upregulated in SJIA monocytes, and augments macrophage IFN-γ response in vitro, providing both a candidate molecular mechanism and potential therapeutic target for monocyte hyper-responsiveness to IFNγ in cytokine storms including MAS.
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Affiliation(s)
- Grant S Schulert
- Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA .,Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | - Thuy Do
- Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sanjeev Dhakal
- Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Ndate Fall
- Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Daniel Schnell
- Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Mario Medvedovic
- Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Nathan Salomonis
- Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.,Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sherry Thornton
- Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Alexei A Grom
- Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Yang Y, Zhao X, Wang Z, Shu W, Li L, Li Y, Guo Z, Gao B, Xiong S. Nuclear Sensor Interferon-Inducible Protein 16 Inhibits the Function of Hepatitis B Virus Covalently Closed Circular DNA by Integrating Innate Immune Activation and Epigenetic Suppression. Hepatology 2020; 71:1154-1169. [PMID: 31402464 DOI: 10.1002/hep.30897] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 08/07/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIMS Nuclear-located covalently closed circular DNA (cccDNA) of hepatitis B virus (HBV) is a determining factor for HBV persistence and the key obstacle for a cure of chronic hepatitis B. However, it remains unclear whether and how the host immune system senses HBV cccDNA and its biological consequences. APPROACH AND RESULTS Here, we demonstrated that interferon-inducible protein 16 (IFI16) could serve as a unique innate sensor to recognize and bind to HBV cccDNA in hepatic nuclei, leading to the inhibition of cccDNA transcription and HBV replication. Mechanistically, our data showed that IFI16 promoted the epigenetic suppression of HBV cccDNA by targeting an interferon-stimulated response element (ISRE) present in cccDNA. It is of interest that this ISRE was also revealed to play an important role in IFI16-activated type I interferon responses. Furthermore, our data revealed that HBV could down-regulate the expression level of IFI16 in hepatocytes, and there was a negative correlation between IFI16 and HBV transcripts in liver biopsies, suggesting the possible role of IFI16 in suppressing cccDNA function under physiological conditions. CONCLUSIONS The nuclear sensor IFI16 suppresses cccDNA function by integrating innate immune activation and epigenetic regulation by targeting the ISRE of cccDNA, and IFI16 may present as a therapeutic target against HBV infection.
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Affiliation(s)
- Yuanyuan Yang
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Xinzhuan Zhao
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Ziyu Wang
- Department of Immunology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Wangqin Shu
- Department of Immunology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Lijie Li
- Department of Immunology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Yuqi Li
- Department of Immunology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Zhiwei Guo
- Department of Immunology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Bo Gao
- Department of Immunology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Sidong Xiong
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
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8
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Lim KH, Park ES, Kim DH, Cho KC, Kim KP, Park YK, Ahn SH, Park SH, Kim KH, Kim CW, Kang HS, Lee AR, Park S, Sim H, Won J, Seok K, You JS, Lee JH, Yi NJ, Lee KW, Suh KS, Seong BL, Kim KH. Suppression of interferon-mediated anti-HBV response by single CpG methylation in the 5'-UTR of TRIM22. Gut 2018; 67:166-178. [PMID: 28341749 DOI: 10.1136/gutjnl-2016-312742] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 02/17/2017] [Accepted: 02/21/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Interferons (IFNs) mediate direct antiviral activity. They play a crucial role in the early host immune response against viral infections. However, IFN therapy for HBV infection is less effective than for other viral infections. DESIGN We explored the cellular targets of HBV in response to IFNs using proteome-wide screening. RESULTS Using LC-MS/MS, we identified proteins downregulated and upregulated by IFN treatment in HBV X protein (HBx)-stable and control cells. We found several IFN-stimulated genes downregulated by HBx, including TRIM22, which is known as an antiretroviral protein. We demonstrated that HBx suppresses the transcription of TRIM22 through a single CpG methylation in its 5'-UTR, which further reduces the IFN regulatory factor-1 binding affinity, thereby suppressing the IFN-stimulated induction of TRIM22. CONCLUSIONS We verified our findings using a mouse model, primary human hepatocytes and human liver tissues. Our data elucidate a mechanism by which HBV evades the host innate immune system.
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Affiliation(s)
- Keo-Heun Lim
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Eun-Sook Park
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Doo Hyun Kim
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Kyung Cho Cho
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi, Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi, Korea
| | - Yong Kwang Park
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Sung Hyun Ahn
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Seung Hwa Park
- Department of Anatomy, School of Medicine, Konkuk University, Seoul, Korea
| | - Kee-Hwan Kim
- Department of Surgery, Uijeongbu St Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Chang Wook Kim
- Department of Internal Medicine, Uijeongbu St Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Hong Seok Kang
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Ah Ram Lee
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Soree Park
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Heewoo Sim
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Juhee Won
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Kieun Seok
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea
| | - Jueng Soo You
- Department of Biochemistry, School of Medicine, Konkuk University, Seoul, Korea
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Nam-Joon Yi
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Kwang-Woong Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Kyung-Suk Suh
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Baik L Seong
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Kyun-Hwan Kim
- Department of Pharmacology, Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul, Korea.,KU Open Innovation Center, Konkuk University, Seoul, Korea.,Research Institute of Medical Sciences, Konkuk University, Seoul, Korea
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Lu M, Xu W, Gao B, Xiong S. Blunting Autoantigen-induced FOXO3a Protein Phosphorylation and Degradation Is a Novel Pathway of Glucocorticoids for the Treatment of Systemic Lupus Erythematosus. J Biol Chem 2016; 291:19900-12. [PMID: 27481940 DOI: 10.1074/jbc.m116.728840] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Indexed: 11/06/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic inflammatory autoimmune disease affecting multiple organs. Glucocorticoids (GCs), the potent anti-inflammatory drugs, remain as a cornerstone in the treatment for SLE; nevertheless, their clinical efficacy is compromised by the side effects of long term treatment and resistance. To improve the therapeutic efficacy of GCs in SLE, it is important to further decipher the molecular mechanisms of how GCs exert their anti-inflammatory effects. In this investigation, FOXO3a was identified as a molecule that was down-regulated in the course of SLE. Of interest, GC treatment was found to rescue FOXO3a expression both in SLE mice and in SLE patients. Gain- and loss-of-function studies demonstrated that FOXO3a played a crucial role in GC treatment of SLE via inhibiting inflammatory responses. Further studies showed that the up-regulation of FOXO3a by GCs relied on the suppression of pI3K/AKT-mediated FOXO3a phosphorylation and the arrest of FOXO3a in the nucleus. Finally, our data revealed that FOXO3a was critical for GC-mediated inhibition of NF-κB activity, which might involve its interaction with NF-κB p65 protein. Collectively, these data indicated that FOXO3a played an important role in GC treatment of SLE by suppressing pro-inflammatory response, and targeting FOXO3a might provide a novel therapeutic strategy against SLE.
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Affiliation(s)
- Mudan Lu
- From the Institute for Immunobiology, Department of Immunology, Shanghai Medical College of Fudan University, Shanghai 200032 and
| | - Wei Xu
- the Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215006, China
| | - Bo Gao
- From the Institute for Immunobiology, Department of Immunology, Shanghai Medical College of Fudan University, Shanghai 200032 and
| | - Sidong Xiong
- From the Institute for Immunobiology, Department of Immunology, Shanghai Medical College of Fudan University, Shanghai 200032 and the Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215006, China
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10
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Insights into the antiviral immunity against grass carp (Ctenopharyngodon idella) reovirus (GCRV) in grass carp. J Immunol Res 2015; 2015:670437. [PMID: 25759845 PMCID: PMC4337036 DOI: 10.1155/2015/670437] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 12/12/2014] [Indexed: 12/13/2022] Open
Abstract
Global fish production from aquaculture has rapidly grown over the past decades, and grass carp shares the largest portion. However, hemorrhagic disease caused by grass carp reovirus (GCRV) results in tremendous loss of grass carp (Ctenopharyngodon idella) industry. During the past years, development of molecular biology and cellular biology technologies has promoted significant advances in the understanding of the pathogen and the immune system. Immunoprophylaxis based on stimulation of the immune system of fish has also got some achievements. In this review, authors summarize the recent progresses in basic researches on GCRV; viral nucleic acid sensors, high-mobility group box proteins (HMGBs); pattern recognition receptors (PRRs), Toll-like receptors (TLRs) and retinoic acid inducible gene I- (RIG-I-) like receptors (RLRs); antiviral immune responses induced by PRRs-mediated signaling cascades of type I interferon (IFN-I) and IFN-stimulated genes (ISGs) activation. The present review also notices the potential applications of molecule genetic markers. Additionally, authors discuss the current preventive and therapeutic strategies (vaccines, RNAi, and prevention medicine) and highlight the importance of innate immunity in long term control for grass carp hemorrhagic disease.
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Chen H, Sun C, Liu W, Gu M, Lin G, Liu Y, Mi Y, Fan L, Wang B, Hu C. Promoter analysis and transcriptional regulation of a Gig2 gene in grass carp (Ctenopharyngodon idella). FISH & SHELLFISH IMMUNOLOGY 2015; 42:249-255. [PMID: 25463285 DOI: 10.1016/j.fsi.2014.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 11/02/2014] [Accepted: 11/07/2014] [Indexed: 06/04/2023]
Abstract
Grass carp reovirus (GCRV)-induced gene 2 (Gig2) is recognized as a new antiviral factor involved in response to viral infection. However, little is known about the mechanisms behind the transcriptional regulation of Gig2 when infected by virus. In this study, the upstream promoter region of grass carp (Ctenopharyngodon idella) Gig2 gene (CiGig2) was identified by homology cloning strategy. CiGig2 promoter sequence was found to be 859 bp in length and contained three scattered IFN-stimulated response elements (ISRE). In addition, some grass carp IRFs (CiIRF1, CiIRF2 and CiIRF3) ORF sequences were subcloned into the expression plasmids pET-32a and expressed in Escherichia coli BL21, then the expressed proteins were purified by affinity chromatography with the Ni-NTA His-Bind Resin. Gel mobility shift assay was employed to screen the transcriptional regulatory factor for CiGig2. The results revealed that the recombinant polypeptides of CiIRF1, CiIRF2 and CiIRF3 bound to CiGig2 promoter with high affinity; indicating that IRF1, IRF2 and IRF3 could be the potential transcriptional regulatory factors for Gig2. Subsequently, CiGig2 promoter sequence was cloned into pGL3-Basic vector and the ORFs of CiIRF1, CiIRF2 and CiIRF3 were cloned into the expression plasmids pcDNA3.1 (+). Then, pGL3-CiGig2 promoter sequence and pcDNA3.1-CiIRFs were co-transfected into C. idella kidney (CIK) cells. The in vivo effects of CiIRFs on CiGig2 promoter were measured by dual-luciferase assays in the transfected CIK cells. Our results showed that the roles of CiIRFs were diversified in regulating CiGig2 transcription, e.g., CiIRF3 played a positive role in during this process; on the contrary CiIRF1 worked as a suppressor; however the effect of CiIRF2 on CiGig2 transcription was not obvious. For further study the roles of the three ISREs in CiGig2 transcription, we cloned three mutant CiGig2 promoters called ISRE1mut-luc (deleted ISRE1), ISRE2mut-luc (deleted ISRE2) and ISRE3mut-luc (deleted ISRE3), respectively. In vitro, gel mobility shift assays showed that all three mutant promoters also were combined with CiIRFs. CIK cells were co-transfected with CiGig2 promoter mutants (ISRE1mut-luc, ISRE2mut-luc or ISRE3mut-luc, respectively) and pcDNA3.1-IRFs. The results suggested that different ISRE played the diverse roles. ISRE2 is more important than ISRE1 and ISRE3 to the transcription of CiGig2 induced by CiIRF1. ISRE1 and ISRE3 are important to the transcription of CiGig2 induced by CiIRF2 and CiIRF3.
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Affiliation(s)
- Huarong Chen
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Changgui Sun
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Wenqun Liu
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Meihui Gu
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Gang Lin
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Yong Liu
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Yichuan Mi
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Lihua Fan
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Binhua Wang
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China
| | - Chengyu Hu
- Department of Bioscience, College of Life Science, Nanchang University, Nanchang 330031, China.
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12
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Trilling M, Bellora N, Rutkowski AJ, de Graaf M, Dickinson P, Robertson K, Prazeres da Costa O, Ghazal P, Friedel CC, Albà MM, Dölken L. Deciphering the modulation of gene expression by type I and II interferons combining 4sU-tagging, translational arrest and in silico promoter analysis. Nucleic Acids Res 2013; 41:8107-25. [PMID: 23832230 PMCID: PMC3783172 DOI: 10.1093/nar/gkt589] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/30/2013] [Accepted: 06/12/2013] [Indexed: 01/14/2023] Open
Abstract
Interferons (IFN) play a pivotal role in innate immunity, orchestrating a cell-intrinsic anti-pathogenic state and stimulating adaptive immune responses. The complex interplay between the primary response to IFNs and its modulation by positive and negative feedback loops is incompletely understood. Here, we implement the combination of high-resolution gene-expression profiling of nascent RNA with translational inhibition of secondary feedback by cycloheximide. Unexpectedly, this approach revealed a prominent role of negative feedback mechanisms during the immediate (≤60 min) IFNα response. In contrast, a more complex picture involving both negative and positive feedback loops was observed on IFNγ treatment. IFNγ-induced repression of genes associated with regulation of gene expression, cellular development, apoptosis and cell growth resulted from cycloheximide-resistant primary IFNγ signalling. In silico promoter analysis revealed significant overrepresentation of SP1/SP3-binding sites and/or GC-rich stretches. Although signal transducer and activator of transcription 1 (STAT1)-binding sites were not overrepresented, repression was lost in absence of STAT1. Interestingly, basal expression of the majority of these IFNγ-repressed genes was dependent on STAT1 in IFN-naïve fibroblasts. Finally, IFNγ-mediated repression was also found to be evident in primary murine macrophages. IFN-repressed genes include negative regulators of innate and stress response, and their decrease may thus aid the establishment of a signalling perceptive milieu.
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Affiliation(s)
- Mirko Trilling
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Nicolás Bellora
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Andrzej J. Rutkowski
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Miranda de Graaf
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Paul Dickinson
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Kevin Robertson
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Olivia Prazeres da Costa
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Peter Ghazal
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Caroline C. Friedel
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - M. Mar Albà
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
| | - Lars Dölken
- Institute for Virology, University Hospital in Essen, University of Duisburg-Essen, Essen, D-45147, Germany, Computational Genomics Group, IMIM-UPF Research Programme on Biomedical Informatics, Barcelona Biomedical Research Park (PRBB), Barcelona 08003, Spain, Department of Medicine, University of Cambridge, Box 157, Addenbrooke’s Hospital, Cambridge CB2 0QQ, UK, Division of Pathway Medicine, University of Edinburgh Medical School, Edinburgh, EH16 4SB, Scotland, UK, SynthSys, University of Edinburgh, Edinburgh, EH9 3JU Scotland, UK, Institute of Medical Microbiology, Technical University Munich, Munich 81675, Germany, Institute for Informatics, Ludwig-Maximilians-University Munich, Munich 80333, Germany and Catalan Institution for Research and Advanced Studies (ICREA), Barcelona 08010, Spain
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13
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Gao B, Xu W, Zhong L, Zhang Q, Su Y, Xiong S. p300, but not PCAF, collaborates with IRF-1 in stimulating TRIM22 expression independently of its histone acetyltransferase activity. Eur J Immunol 2013; 43:2174-84. [PMID: 23670564 DOI: 10.1002/eji.201343308] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 03/29/2013] [Accepted: 05/08/2013] [Indexed: 01/02/2023]
Abstract
Tripartite motif (TRIM) 22 plays an important role in IFN-mediated antiviral activity. We previously demonstrated that IFN regulatory factor-1 (IRF-1) was crucial for constitutive and IFN-induced TRIM22 expression via binding to a special cis-element named 5' extended IFN-stimulating response element. Here, we further investigate the molecular mechanisms of TRIM22 with a focus on the co-activators of IRF-1. Using an in vitro DNA affinity binding assay and an in vivo chromatin immunoprecipitation assay, we found that IFN-γ stimulation significantly enhanced the binding of p300 and p300/CBP-associated factor, but not other co-activators such as general control nondepressible 5, steroid receptor co-activator-1, and activator of thyroid and retinoic, to the 5' extended IFN-stimulating response element containing TRIM22 promoter region together with IRF-1. Overexpression and knockdown analysis demonstrated that it was p300, but not p300/CBP-associated factor, that functioned as a transcriptional co-activator of IRF-1 in IFN-γ induction of TRIM22. We further show that p300 contributed to both IFN-γ- and IRF-1-mediated TRIM22 transcription independent of its histone acetyltransferase activity, however, it was required for the recruitment of RNA polymerase II to TRIM22 promoter region. These data indicate that p300 plays a critical role in IFN-γ-induced TRIM22 expression via recruiting RNA polymerase II to the TRIM22 promoter, and might serve as a bridge between IRF-1 and the basal transcriptional apparatus in TRIM22 induction.
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Affiliation(s)
- Bo Gao
- Department of Immunology, Institute for Immunobiology, Shanghai Medical College of Fudan University, Shanghai, PR China
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14
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Gao B, Wang Y, Xu W, Li S, Li Q, Xiong S. Inhibition of Histone Deacetylase Activity Suppresses IFN-γ Induction of Tripartite Motif 22 via CHIP-Mediated Proteasomal Degradation of IRF-1. THE JOURNAL OF IMMUNOLOGY 2013; 191:464-71. [DOI: 10.4049/jimmunol.1203533] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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15
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Gao B, Xu W, Wang Y, Zhong L, Xiong S. Induction of TRIM22 by IFN-γ Involves JAK and PC-PLC/PKC, but Not MAPKs and pI3K/Akt/mTOR Pathways. J Interferon Cytokine Res 2013; 33:578-87. [PMID: 23659673 DOI: 10.1089/jir.2012.0170] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Tripartite motif (TRIM) 22 plays an important role in interferons (IFNs)-mediated antiviral activity. We previously demonstrated that interferon regulatory factor-1 (IRF-1) played a central role in IFN-γ-induced TRIM22 expression via binding to a special cis-element named 5' extended IFN-stimulating response element (5'eISRE). In this study, we sought to identify the signaling pathways involved in TRIM22 induction by IFN-γ. By using various pharmacological inhibitors, it was found that the activity of tyrosine kinase and phosphatidylcholine-phospholipase C (PC-PLC), but not phosphatidylinositol-phospholipase C (PI-PLC) and phospholipase D (PLD), was required for IFN-γ-induced TRIM22 expression in HepG2 cells. Tyrosine kinase Janus kinase (JAK), not SRC and PYK2, played an indispensable role in TRIM22 induction. Inhibition of protein kinase C (PKC) activity also significantly attenuated IFN-γ induction of TRIM22. Although treatment with IFN-γ resulted in the stimulation of mitogen-activated protein kinases (MAPKs) (p38, ERK, and JNK) and pI3K/Akt/mTOR pathways in HepG2 cells, the inhibition of their activity did not affect IFN-γ-stimulated TRIM22 expression. Further studies showed that overexpression of JAK1 and PKCα activated TRIM22 promoter activity in a 5'eISRE-dependent manner, and inhibition of not only JAK but also PC-PLC/PKC pathways significantly attenuated IFN-γ-induced IRF-1 expression in HepG2 cells. Taken together, these data indicated that IFN-γ induced TRIM22 expression via activation of JAK and PC-PLC/PKC signaling pathways, which involved the cis-element 5'eISRE and the transactivator IRF-1.
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Affiliation(s)
- Bo Gao
- 1 Department of Immunology, Institute for Immunobiology, Shanghai Medical College of Fudan University , Shanghai, P.R. China
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16
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TRIM22: A Diverse and Dynamic Antiviral Protein. Mol Biol Int 2012; 2012:153415. [PMID: 22649727 PMCID: PMC3356915 DOI: 10.1155/2012/153415] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Accepted: 02/24/2012] [Indexed: 12/25/2022] Open
Abstract
The tripartite motif (TRIM) family of proteins is an evolutionarily ancient group of proteins with homologues identified in both invertebrate and vertebrate species. Human TRIM22 is one such protein that has a dynamic evolutionary history that includes gene expansion, gene loss, and strong signatures of positive selection. To date, TRIM22 has been shown to restrict the replication of a number of viruses, including encephalomyocarditis virus (EMCV), hepatitis B virus (HBV), and human immunodeficiency virus type 1 (HIV-1). In addition, TRIM22 has also been implicated in cellular differentiation and proliferation and may play a role in certain cancers and autoimmune diseases. This comprehensive paper summarizes our current understanding of TRIM22 structure and function.
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Wang Y, Gao B, Xu W, Xiong S. BRG1 is indispensable for IFN-γ-induced TRIM22 expression, which is dependent on the recruitment of IRF-1. Biochem Biophys Res Commun 2011; 410:549-54. [PMID: 21683060 DOI: 10.1016/j.bbrc.2011.06.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Accepted: 06/01/2011] [Indexed: 12/24/2022]
Abstract
The modification of chromatin structure is increasingly recognized to be an important facet of transcriptional regulation. Here, we report that Brahma-related gene 1 (BRG1), a chromatin remodeling enzyme, plays a crucial role in IFN-γ-induced TRIM22 expression. Our results showed that IFN-γ failed to induce TRIM22 expression in BRG1-deficient SW-13 cells, and reconstitution of BRG1 in this cell line could restore IFN-γ induction of TRIM22. Furthermore, it was revealed that BRG1 absence, per se, did not impair IFN-γ-induced IRF-1 expression, but blocked its access to TRIM22 promoter, and BRG1-dependent induction of TRIM22 perfectly correlated with BRG1-dependent recruitment of IRF-1 to TRIM22 promoter. We also found that the DNA-dependent ATPase domain of BRG1 was required for TRIM22 expression and IRF-1 recruitment in response to IFN-γ stimulation, suggesting that BRG1-mediated chromatin remodeling is critical for the IFN-γ-inducibility of TRIM22 gene.
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Affiliation(s)
- Yaxin Wang
- Institute for Immunobiology, Department of Immunology, Shanghai Medical College of Fudan University, Shanghai 200032, PR China
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18
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Yu S, Gao B, Duan Z, Xu W, Xiong S. Identification of tripartite motif-containing 22 (TRIM22) as a novel NF-κB activator. Biochem Biophys Res Commun 2011; 410:247-51. [PMID: 21651891 DOI: 10.1016/j.bbrc.2011.05.124] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Accepted: 05/21/2011] [Indexed: 01/01/2023]
Abstract
Increasing evidence suggests that TRIM family proteins may play important roles in the regulation of innate immune signaling pathways. Here we report TRIM22 is involved in the activation of NF-κB. It was found that overexpression of TRIM22 could dose-dependently activate NF-κB as demonstrated by reporter gene assay and electrophoretic mobility shift assay, but had no effect on the activity of other transcription factors, including NF-AT, AP-1, C/EBP and IRFs. Further study showed that both the N-terminal RING domain and C-terminal SPRY domain were crucial for TRIM22-mediated NF-κB activation. Moreover, our results revealed that TRIM22 overexpression could significantly induce the secretion of pro-inflammatory cytokines by human macrophage cell line U937 in an NF-κB-dependent manner. These data suggested that TRIM22 was a positive regulator of NF-κB-mediated transcription.
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Affiliation(s)
- Shanshan Yu
- Institute for Immunobiology, Department of Immunology, Shanghai Medical College of Fudan University, Shanghai 200032, PR China
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