1
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Taylor TC, Coleman BM, Arunkumar SP, Dey I, Dillon JT, Ponde NO, Poholek AC, Schwartz DM, McGeachy MJ, Conti HR, Gaffen SL. IκBζ is an essential mediator of immunity to oropharyngeal candidiasis. Cell Host Microbe 2023; 31:1700-1713.e4. [PMID: 37725983 PMCID: PMC10591851 DOI: 10.1016/j.chom.2023.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/28/2023] [Accepted: 08/22/2023] [Indexed: 09/21/2023]
Abstract
Fungal infections are a global threat; yet, there are no licensed vaccines to any fungal pathogens. Th17 cells mediate immunity to Candida albicans, particularly oropharyngeal candidiasis (OPC), but essential downstream mechanisms remain unclear. In the murine model of OPC, IκBζ (Nfkbiz, a non-canonical NF-κB transcription factor) was upregulated in an interleukin (IL)-17-dependent manner and was essential to prevent candidiasis. Deletion of Nfkbiz rendered mice highly susceptible to OPC. IκBζ was dispensable in hematopoietic cells and acted partially in the suprabasal oral epithelium to control OPC. One prominent IκBζ-dependent gene target was β-defensin 3 (BD3) (Defb3), an essential antimicrobial peptide. Human oral epithelial cells required IκBζ for IL-17-mediated induction of BD2 (DEFB4A, human ortholog of mouse Defb3) through binding to the DEFB4A promoter. Unexpectedly, IκBζ regulated the transcription factor Egr3, which was essential for C. albicans induction of BD2/DEFB4A. Accordingly, IκBζ and Egr3 comprise an antifungal signaling hub mediating mucosal defense against oral candidiasis.
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Affiliation(s)
- Tiffany C Taylor
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Bianca M Coleman
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Samyuktha P Arunkumar
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Ipsita Dey
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - John T Dillon
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Nicole O Ponde
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Amanda C Poholek
- Department of Pediatrics, University of Pittsburgh, Children's Hospital of UPMC, Pittsburgh, PA 15224, USA
| | - Daniella M Schwartz
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Mandy J McGeachy
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA; Department of Microbiology and Immunology, Cornell University, Ithaca, NY 14853, USA
| | - Heather R Conti
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Sarah L Gaffen
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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2
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Rodriguez C, Araujo Furlan CL, Tosello Boari J, Bossio SN, Boccardo S, Fozzatti L, Canale FP, Beccaria CG, Nuñez NG, Ceschin DG, Piaggio E, Gruppi A, Montes CL, Acosta Rodríguez EV. Interleukin-17 signaling influences CD8 + T cell immunity and tumor progression according to the IL-17 receptor subunit expression pattern in cancer cells. Oncoimmunology 2023; 12:2261326. [PMID: 37808403 PMCID: PMC10557545 DOI: 10.1080/2162402x.2023.2261326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/15/2023] [Indexed: 10/10/2023] Open
Abstract
IL-17 immune responses in cancer are controversial, with both tumor-promoting and tumor-repressing effects observed. To clarify the role of IL-17 signaling in cancer progression, we used syngeneic tumor models from different tissue origins. We found that deficiencies in host IL-17RA or IL-17A/F expression had varying effects on the in vivo growth of different solid tumors including melanoma, sarcoma, lymphoma, and leukemia. In each tumor type, the absence of IL-17 led to changes in the expression of mediators associated with inflammation and metastasis in the tumor microenvironment. Furthermore, IL-17 signaling deficiencies in the hosts resulted in decreased anti-tumor CD8+ T cell immunity and caused tumor-specific changes in several lymphoid cell populations. Our findings were associated with distinct patterns of IL-17A/F cytokine and receptor subunit expression in the injected tumor cell lines. These patterns affected tumor cell responsiveness to IL-17 and downstream intracellular signaling, leading to divergent effects on cancer progression. Additionally, we identified IL-17RC as a critical determinant of the IL-17-mediated response in tumor cells and a potential biomarker for IL-17 signaling effects in tumor progression. Our study offers insight into the molecular mechanisms underlying IL-17 activities in cancer and lays the groundwork for developing personalized immunotherapies.
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Affiliation(s)
- Constanza Rodriguez
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Cintia L. Araujo Furlan
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Jimena Tosello Boari
- INSERM U932, Immunity and Cancer, Paris, France
- Department of Translational Research, PSL Research University, Paris, France
| | - Sabrina N. Bossio
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Santiago Boccardo
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Laura Fozzatti
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Fernando P. Canale
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Cristian G. Beccaria
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Nicolás G. Nuñez
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Danilo G. Ceschin
- Centro de Investigación en Medicina Traslacional “Severo R. Amuchástegui” (CIMETSA), Vinculado al Instituto de Investigación Médica Mercedes y Martín Ferreyra (CONICET-UNC), Instituto Universitario de Ciencias Biomédicas de Córdoba (IUCBC), Córdoba, Argentina
| | - Eliane Piaggio
- INSERM U932, Immunity and Cancer, Paris, France
- Department of Translational Research, PSL Research University, Paris, France
| | - Adriana Gruppi
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Carolina L. Montes
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
| | - Eva V. Acosta Rodríguez
- Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica e Inmunología, CONICET, Córdoba, Argentina
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3
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Shen Y, Zhang K, Wang R, Sun S, Yang Y, Yao Y, Liu H, Ren Z. MCPIP1 alleviated alcohol-induced immune dysfunction via the MAPK/ERK signaling pathway. Psychopharmacology (Berl) 2022; 239:3485-3493. [PMID: 36129492 DOI: 10.1007/s00213-022-06214-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/13/2022] [Indexed: 11/26/2022]
Abstract
RATIONALE In recent years, monocyte chemotactic protein-induced protein 1 (MCPIP1) has been reported to control inflammation via IL-10. OBJECTIVES The aims of this study were to determine (1) whether MCPIP1 can repair damage to the immune system after alcohol use and (2) whether MCPIP1 can repair the immune function impaired by alcohol use through the MAPK/ERK signaling pathway. Our results will inform the treatment of immune dysfunction caused by alcohol consumption. METHODS Scrambled shRNA or MCPIP-1-shRNA carried by the lentiviral vector (50μl each at 1×108TU/ml) was injected retrogradely through the pancreatic duct to pretreat male C57BL/6 mice. Five days after the injection, mice were exposed to intragastric ethanol infusion (5g/kg, 25% ethanol w/v) daily or vehicle for 10 days. RESULTS MCPIP-1 protein was increased in the pancreas after alcohol exposure. MCPIP-1 shRNA specifically decreased MCPIP-1 protein expression and mRNA level in the pancreas. Specific knockdown of MCPIP-1 exacerbates pancreatic necrosis, interstitial edema, and inflammatory infiltrates after alcohol exposure. Meanwhile, specific knockdown of MCPIP-1 also increased pancreatic pro-inflammatory cytokine (IL-6 and IL-1β), chemokine MCP-1, and chemokine receptor 2 (CCR2) after alcohol exposure. What's more, p-JNK and p-ERK in the pancreas were all similarly increased in response to pancreas-specific knockdown of MCPIP-1 during alcohol exposure. CONCLUSIONS Taken together, the results above suggested that MCPIP1 repairs the immune function impaired by alcohol use via stimulating JNK and ERK pathways. Our results will inform the treatment of immune dysfunction caused by alcohol consumption.
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Affiliation(s)
- Yanjie Shen
- Department of Anatomy, Anhui Medical University, Hefei, 230032, China
| | - Kai Zhang
- Department of Psychiatry, Chaohu Hospital of Anhui Medical University, Hefei, 238000, China
- Anhui Mental Health Center, Anhui Medical University, Hefei, China
| | - Rui Wang
- Department of Anatomy, Anhui Medical University, Hefei, 230032, China
| | - Shuaichen Sun
- Department of Anatomy, Anhui Medical University, Hefei, 230032, China
| | - Yating Yang
- Department of Psychiatry, Chaohu Hospital of Anhui Medical University, Hefei, 238000, China
- Anhui Mental Health Center, Anhui Medical University, Hefei, China
| | - Yitan Yao
- Department of Psychiatry, Chaohu Hospital of Anhui Medical University, Hefei, 238000, China
- Anhui Mental Health Center, Anhui Medical University, Hefei, China
| | - Huanzhong Liu
- Department of Psychiatry, Chaohu Hospital of Anhui Medical University, Hefei, 238000, China.
- Anhui Mental Health Center, Anhui Medical University, Hefei, China.
| | - Zhenhua Ren
- Department of Anatomy, Anhui Medical University, Hefei, 230032, China.
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4
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Muromoto R, Oritani K, Matsuda T. Current understanding of the role of tyrosine kinase 2 signaling in immune responses. World J Biol Chem 2022; 13:1-14. [PMID: 35126866 PMCID: PMC8790287 DOI: 10.4331/wjbc.v13.i1.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 08/06/2021] [Accepted: 12/23/2021] [Indexed: 02/06/2023] Open
Abstract
Immune system is a complex network that clears pathogens, toxic substrates, and cancer cells. Distinguishing self-antigens from non-self-antigens is critical for the immune cell-mediated response against foreign antigens. The innate immune system elicits an early-phase response to various stimuli, whereas the adaptive immune response is tailored to previously encountered antigens. During immune responses, B cells differentiate into antibody-secreting cells, while naïve T cells differentiate into functionally specific effector cells [T helper 1 (Th1), Th2, Th17, and regulatory T cells]. However, enhanced or prolonged immune responses can result in autoimmune disorders, which are characterized by lymphocyte-mediated immune responses against self-antigens. Signal transduction of cytokines, which regulate the inflammatory cascades, is dependent on the members of the Janus family of protein kinases. Tyrosine kinase 2 (Tyk2) is associated with receptor subunits of immune-related cytokines, such as type I interferon, interleukin (IL)-6, IL-10, IL-12, and IL-23. Clinical studies on the therapeutic effects and the underlying mechanisms of Tyk2 inhibitors in autoimmune or chronic inflammatory diseases are currently ongoing. This review summarizes the findings of studies examining the role of Tyk2 in immune and/or inflammatory responses using Tyk2-deficient cells and mice.
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Affiliation(s)
- Ryuta Muromoto
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kenji Oritani
- Department of Hematology, International University of Health and Welfare, Narita 286-8686, Japan
| | - Tadashi Matsuda
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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5
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Jin Z, Zheng E, Sareli C, Kolattukudy PE, Niu J. Monocyte Chemotactic Protein-Induced Protein 1 (MCPIP-1): A Key Player of Host Defense and Immune Regulation. Front Immunol 2021; 12:727861. [PMID: 34659213 PMCID: PMC8519509 DOI: 10.3389/fimmu.2021.727861] [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: 06/19/2021] [Accepted: 09/08/2021] [Indexed: 01/14/2023] Open
Abstract
Inflammatory response is a host-protective mechanism against tissue injury or infections, but also has the potential to cause extensive immunopathology and tissue damage, as seen in many diseases, such as cardiovascular diseases, neurodegenerative diseases, metabolic syndrome and many other infectious diseases with public health concerns, such as Coronavirus Disease 2019 (COVID-19), if failure to resolve in a timely manner. Recent studies have uncovered a superfamily of endogenous chemical molecules that tend to resolve inflammatory responses and re-establish homeostasis without causing excessive damage to healthy cells and tissues. Among these, the monocyte chemoattractant protein-induced protein (MCPIP) family consisting of four members (MCPIP-1, -2, -3, and -4) has emerged as a group of evolutionarily conserved molecules participating in the resolution of inflammation. The focus of this review highlights the biological functions of MCPIP-1 (also known as Regnase-1), the best-studied member of this family, in the resolution of inflammatory response. As outlined in this review, MCPIP-1 acts on specific signaling pathways, in particular NFκB, to blunt production of inflammatory mediators, while also acts as an endonuclease controlling the stability of mRNA and microRNA (miRNA), leading to the resolution of inflammation, clearance of virus and dead cells, and promotion of tissue regeneration via its pleiotropic effects. Evidence from transgenic and knock-out mouse models revealed an involvement of MCPIP-1 expression in immune functions and in the physiology of the cardiovascular system, indicating that MCPIP-1 is a key endogenous molecule that governs normal resolution of acute inflammation and infection. In this review, we also discuss the current evidence underlying the roles of other members of the MCPIP family in the regulation of inflammatory processes. Further understanding of the proteins from this family will provide new insights into the identification of novel targets for both host effectors and microbial factors and will lead to new therapeutic treatments for infections and other inflammatory diseases.
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Affiliation(s)
- Zhuqing Jin
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - En Zheng
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Candice Sareli
- Office of Human Research, Memorial Healthcare System, Hollywood, FL, United States
| | - Pappachan E Kolattukudy
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, FL, United States
| | - Jianli Niu
- Office of Human Research, Memorial Healthcare System, Hollywood, FL, United States.,Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, FL, United States
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6
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Xu R, Li Y, Liu Y, Qu J, Cao W, Zhang E, He J, Cai Z. How are MCPIP1 and cytokines mutually regulated in cancer-related immunity? Protein Cell 2020; 11:881-893. [PMID: 32548715 PMCID: PMC7719135 DOI: 10.1007/s13238-020-00739-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 05/11/2020] [Indexed: 12/21/2022] Open
Abstract
Cytokines are secreted by various cell types and act as critical mediators in many physiological processes, including immune response and tumor progression. Cytokines production is precisely and timely regulated by multiple mechanisms at different levels, ranging from transcriptional to post-transcriptional and posttranslational processes. Monocyte chemoattractant protein-1 induced protein 1 (MCPIP1), a potent immunosuppressive protein, was first described as a transcription factor in monocytes treated with monocyte chemoattractant protein-1 (MCP-1) and subsequently found to possess intrinsic RNase and deubiquitinase activities. MCPIP1 tightly regulates cytokines expression via various functions. Furthermore, cytokines such as interleukin 1 beta (IL-1B) and MCP-1 and inflammatory cytokines inducer lipopolysaccharide (LPS) strongly induce MCPIP1 expression. Mutually regulated MCPIP1 and cytokines form a complicated network in the tumor environment. In this review, we summarize how MCPIP1 and cytokines reciprocally interact and elucidate the effect of the network formed by these components in cancer-related immunity with aim of exploring potential clinical benefits of their mutual regulation.
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Affiliation(s)
- Ruyi Xu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China
| | - Yi Li
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China
| | - Yang Liu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China
| | - Jianwei Qu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China
| | - Wen Cao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China
| | - Enfan Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China
| | - Jingsong He
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China. .,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China.
| | - Zhen Cai
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China. .,Institution of Hematology, Zhejiang University, Hangzhou, 310006, China.
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7
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Behrens G, Winzen R, Rehage N, Dörrie A, Barsch M, Hoffmann A, Hackermüller J, Tiedje C, Heissmeyer V, Holtmann H. A translational silencing function of MCPIP1/Regnase-1 specified by the target site context. Nucleic Acids Res 2019; 46:4256-4270. [PMID: 29471506 PMCID: PMC5934641 DOI: 10.1093/nar/gky106] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 02/09/2018] [Indexed: 12/13/2022] Open
Abstract
The expression of proteins during inflammatory and immune reactions is coordinated by post-transcriptional mechanisms. A particularly strong suppression of protein expression is exerted by a conserved translational silencing element (TSE) identified in the 3′ UTR of NFKBIZ mRNA, which is among the targets of the RNA-binding proteins Roquin-1/2 and MCPIP1/Regnase-1. We present evidence that in the context of the TSE MCPIP1, so far known for its endonuclease activity toward mRNAs specified by distinct stem–loop (SL) structures, also suppresses translation. Overexpression of MCPIP1 silenced translation in a TSE-dependent manner and reduced ribosome occupancy of the mRNA. Correspondingly, MCPIP1 depletion alleviated silencing and increased polysomal association of the mRNA. Translationally silenced NFKBIZ or reporter mRNAs were mostly capped, polyadenylated and ribosome associated. Furthermore, MCPIP1 silenced also cap-independent, CrPV-IRES-dependent translation. This suggests that MCPIP1 suppresses a post-initiation step. The TSE is predicted to form five SL structures. SL4 and 5 resemble target structures reported for MCPIP1 and together were sufficient for MCPIP1 binding and mRNA destabilization. Translational silencing, however, required SL1–3 in addition. Thus the NFKBIZ TSE functions as an RNA element in which sequences adjacent to the site of interaction with MCPIP1 and dispensable for accelerated mRNA degradation extend the functional repertoire of MCPIP1 to translational silencing.
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Affiliation(s)
- Gesine Behrens
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany
| | - Reinhard Winzen
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany
| | - Nina Rehage
- Institute for Immunology, Biomedical Center of the Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Anneke Dörrie
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany
| | - Monika Barsch
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany
| | - Anne Hoffmann
- Young Investigators Group Bioinformatics and Transcriptomics, Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research - UFZ, 04318 Leipzig, Germany
| | - Jörg Hackermüller
- Young Investigators Group Bioinformatics and Transcriptomics, Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research - UFZ, 04318 Leipzig, Germany.,Department of Computer Science, University of Leipzig, 04081 Leipzig, Germany
| | - Christopher Tiedje
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany
| | - Vigo Heissmeyer
- Institute for Immunology, Biomedical Center of the Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany.,Research Unit Molecular Immune Regulation, Helmholtz Zentrum München, 81377 München, Germany
| | - Helmut Holtmann
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany
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8
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Chen T, Du D, Chen J, Zhou P, Weinstein JN, Yao L, Liu Y. ZC3H12A Expression in Different Stages of Colorectal Cancer. Oncoscience 2019; 6:301-311. [PMID: 31106233 PMCID: PMC6508193 DOI: 10.18632/oncoscience.480] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 02/01/2019] [Indexed: 12/17/2022] Open
Abstract
Identification of CRC patients with early-stage disease provides the opportunity for curative local resection. However, robust markers for stage I tumor prediction are yet to be developed. We analyzed RNA-sequencing data of 221 CRC samples using the TCGA dataset to identify novel biomarkers for stage I CRC. We next validated the TCGA finding in an independent GEO cohort of 290 CRC patients and in a third cohort of 110 CRC tumors and matched normal samples. We further performed correlative analysis of ZC3H12A gene expression with clinicopathologic features and disease-free survival. Expression correlation of ZC3H12A with the chemokine ligands was evaluated via Student’s t-test. In the TCGA cohort, stage I CRC patients had significantly higher ZC3H12A mRNA expression as compared with the other three stages combined and with the other individual stages in a pairwise manner (P<0.001 for all comparisons). The significant association of ZC3H12A gene expression with stages was further validated in the GEO cohort and in the additional third cohort. In support of these findings, we further found that patients with lower ZC3H12A expression had more aggressive tumor features and shorter disease-free survival. Biologically, ZC3H12A expression was significantly correlated with expression of three chemokine ligands (CXCL1, CXCL2 and CXCL3), suggesting that immune response dysregulation likely contributes to CRC development. Our results demonstrate ZC3H12A’s potential role in identification of CRC patients with early-stage disease.
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Affiliation(s)
- Tao Chen
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Di Du
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jian Chen
- Department of Gastroenterology, Hepatology & Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Pinghong Zhou
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital of Fudan University, Shanghai, China
| | - John N Weinstein
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Liqing Yao
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Yuexin Liu
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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9
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Amatya N, Childs EE, Cruz JA, Aggor FEY, Garg AV, Berman AJ, Gudjonsson JE, Atasoy U, Gaffen SL. IL-17 integrates multiple self-reinforcing, feed-forward mechanisms through the RNA binding protein Arid5a. Sci Signal 2018; 11:eaat4617. [PMID: 30301788 PMCID: PMC6188668 DOI: 10.1126/scisignal.aat4617] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Interleukin-17A (IL-17A) not only stimulates immunity to fungal pathogens but also contributes to autoimmune pathology. IL-17 is only a modest activator of transcription in experimental tissue culture settings. However, IL-17 controls posttranscriptional events that enhance the expression of target mRNAs. Here, we showed that the RNA binding protein (RBP) Arid5a (AT-rich interactive domain-containing protein 5a) integrated multiple IL-17-driven signaling pathways through posttranscriptional control of mRNA. IL-17 induced expression of Arid5a, which was recruited to the adaptor TRAF2. Arid5a stabilized IL-17-induced cytokine transcripts by binding to their 3' untranslated regions and also counteracted mRNA degradation mediated by the endoribonuclease MCPIP1 (Regnase-1). Arid5a inducibly associated with the eukaryotic translation initiation complex and facilitated the translation of the transcription factors (TFs) IκBζ (Nfkbiz ) and C/EBPβ (Cebpb). These TFs in turn transactivated IL-17-dependent promoters. Together, these data indicated that Arid5a orchestrates a feed-forward amplification loop, which promoted IL-17 signaling by controlling mRNA stability and translation.
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Affiliation(s)
- Nilesh Amatya
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Erin E Childs
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - J Agustin Cruz
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Felix E Y Aggor
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Abhishek V Garg
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Andrea J Berman
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Johann E Gudjonsson
- Department of Dermatology, Taubman Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ulus Atasoy
- Division of Allergy and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Sarah L Gaffen
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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10
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Essig K, Kronbeck N, Guimaraes JC, Lohs C, Schlundt A, Hoffmann A, Behrens G, Brenner S, Kowalska J, Lopez-Rodriguez C, Jemielity J, Holtmann H, Reiche K, Hackermüller J, Sattler M, Zavolan M, Heissmeyer V. Roquin targets mRNAs in a 3'-UTR-specific manner by different modes of regulation. Nat Commun 2018; 9:3810. [PMID: 30232334 PMCID: PMC6145892 DOI: 10.1038/s41467-018-06184-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 08/14/2018] [Indexed: 12/12/2022] Open
Abstract
The RNA-binding proteins Roquin-1 and Roquin-2 redundantly control gene expression and cell-fate decisions. Here, we show that Roquin not only interacts with stem–loop structures, but also with a linear sequence element present in about half of its targets. Comprehensive analysis of a minimal response element of the Nfkbid 3′-UTR shows that six stem–loop structures cooperate to exert robust and profound post-transcriptional regulation. Only binding of multiple Roquin proteins to several stem–loops exerts full repression, which redundantly involved deadenylation and decapping, but also translational inhibition. Globally, most Roquin targets are regulated by mRNA decay, whereas a small subset, including the Nfat5 mRNA, with more binding sites in their 3′-UTRs, are also subject to translational inhibition. These findings provide insights into how the robustness and magnitude of Roquin-mediated regulation is encoded in complex cis-elements. Roquin targets are known to contain two types of sequence-structure motifs, the constitutive and the alternative decay elements (CDE and ADE). Here, the authors describe a linear Roquin binding element (LBE) also involved in target recognition, and show that Roquin binding affects the translation of a subset of targeted mRNAs.
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Affiliation(s)
- Katharina Essig
- Institute for Immunology at the Biomedical Center, Ludwig-Maximilians-Universität München, 82152, Planegg-Martinsried, Germany
| | - Nina Kronbeck
- Institute for Immunology at the Biomedical Center, Ludwig-Maximilians-Universität München, 82152, Planegg-Martinsried, Germany
| | - Joao C Guimaraes
- Computational and Systems Biology, Biozentrum, University of Basel, 4056, Basel, Switzerland
| | - Claudia Lohs
- Research Unit Molecular Immune Regulation, Helmholtz Zentrum München, 81377, München, Germany
| | - Andreas Schlundt
- Institute of Structural Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany.,Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemie, Technische Universität München, 85748, Garching, Germany
| | - Anne Hoffmann
- Young Investigators Group Bioinformatics and Transcriptomics, Department Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.,Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center of Bioinformatics, Leipzig University, Härtelstraße 16-18, 04107, Leipzig, Germany
| | - Gesine Behrens
- Institute for Immunology at the Biomedical Center, Ludwig-Maximilians-Universität München, 82152, Planegg-Martinsried, Germany
| | - Sven Brenner
- Research Unit Molecular Immune Regulation, Helmholtz Zentrum München, 81377, München, Germany
| | - Joanna Kowalska
- Division of Biophysics, Institute of Experimental Physics, Faculty of Physics, University of Warsaw, 02-089, Warsaw, Poland
| | - Cristina Lopez-Rodriguez
- Immunology Unit, Department of Experimental and Health Sciences, Pompeu Fabra University, 08003, Barcelona, Spain
| | - Jacek Jemielity
- Centre of New Technologies, University of Warsaw, 02-097, Warsaw, Poland
| | - Helmut Holtmann
- Institute of Biochemistry, Hannover Medical School, 30623, Hannover, Germany
| | - Kristin Reiche
- Young Investigators Group Bioinformatics and Transcriptomics, Department Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.,Bioinformatics Unit, Department of Diagnostics, Fraunhofer Institute for Cell Therapy and Immunology-IZI, Leipzig, Germany
| | - Jörg Hackermüller
- Young Investigators Group Bioinformatics and Transcriptomics, Department Molecular Systems Biology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany.,Center for Integrated Protein Science Munich at Biomolecular NMR Spectroscopy, Department Chemie, Technische Universität München, 85748, Garching, Germany
| | - Mihaela Zavolan
- Computational and Systems Biology, Biozentrum, University of Basel, 4056, Basel, Switzerland.
| | - Vigo Heissmeyer
- Institute for Immunology at the Biomedical Center, Ludwig-Maximilians-Universität München, 82152, Planegg-Martinsried, Germany. .,Research Unit Molecular Immune Regulation, Helmholtz Zentrum München, 81377, München, Germany.
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11
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Takeuchi O. Endonuclease Regnase-1/Monocyte chemotactic protein-1-induced protein-1 (MCPIP1) in controlling immune responses and beyond. WILEY INTERDISCIPLINARY REVIEWS-RNA 2017; 9. [PMID: 28929622 DOI: 10.1002/wrna.1449] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 08/15/2017] [Accepted: 08/17/2017] [Indexed: 12/14/2022]
Abstract
The activation of inflammatory cells is controlled at transcriptional and posttranscriptional levels. Posttranscriptional regulation modifies mRNA stability and translation, allowing for elaborate control of proteins required for inflammation, such as proinflammatory cytokines, prostaglandin synthases, cell surface co-stimulatory molecules, and even transcriptional modifiers. Such regulation is important for coordinating the initiation and resolution of inflammation, and is mediated by a set of RNA-binding proteins (RBPs), including Regnase-1, Roquin, Tristetraprolin (TTP), and AU-rich elements/poly(U)-binding/degradation factor 1 (AUF1). Among these, Regnase-1, also known as Zc3h12a and Monocyte chemotactic protein-1-induced protein-1 (MCPIP1), acts as an endoribonuclease responsible for the degradation of mRNAs involved in inflammatory responses. Conversely, the RBPs Roquin and TTP trigger exonucleolytic degradation of mRNAs by recruiting the CCR4-NOT deadenylase complex. Regnase-1 specifically recognizes stem-loop structures present in 3'-untranslated regions of cytokine mRNAs, and directly degrades the mRNAs in a translation- and ATP-dependent RNA helicase upframeshift 1 (UPF1)-dependent manner that is reminiscent of nonsense-mediated decay. Regnase-1 regulates the activation of innate and acquired immune cells, and is critical for maintaining immune homeostasis as well as preventing over-activation of the immune system under inflammatory conditions. Furthermore, recent studies have revealed that Regnase-1 and its family members are involved not only in immunity but also in various biological processes. In this article, I review molecular mechanisms of Regnase-1-mediated mRNA decay and its physiological roles. WIREs RNA 2018, 9:e1449. doi: 10.1002/wrna.1449 This article is categorized under: RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications RNA Turnover and Surveillance > Regulation of RNA Stability RNA in Disease and Development > RNA in Disease.
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Affiliation(s)
- Osamu Takeuchi
- Laboratory of Infection and Prevention, Institute for Frontier Life and Medical Sciences, Kyoto University, AMED-CREST, AMED, Kyoto, Japan
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12
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Abstract
Nearly 60 CCCH zinc finger proteins have been identified in humans and mice. These proteins are involved in the regulation of multiple steps of RNA metabolism, including mRNA splicing, polyadenylation, transportation, translation and decay. Several CCCH zinc finger proteins, such as tristetraprolin (TTP), roquin 1 and MCPIP1 (also known as regnase 1), are crucial for many aspects of immune regulation by targeting mRNAs for degradation and modulation of signalling pathways. In this Review, we focus on the emerging roles of CCCH zinc finger proteins in the regulation of immune responses through their effects on cytokine production, immune cell activation and immune homeostasis.
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13
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Monin L, Gudjonsson JE, Childs EE, Amatya N, Xing X, Verma AH, Coleman BM, Garg AV, Killeen M, Mathers A, Ward NL, Gaffen SL. MCPIP1/Regnase-1 Restricts IL-17A- and IL-17C-Dependent Skin Inflammation. THE JOURNAL OF IMMUNOLOGY 2016; 198:767-775. [PMID: 27920272 DOI: 10.4049/jimmunol.1601551] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/04/2016] [Indexed: 12/14/2022]
Abstract
The IL-17 family cytokines IL-17A and IL-17C drive the pathogenesis of psoriatic skin inflammation, and anti-IL-17A Abs were recently approved to treat human psoriasis. Little is known about mechanisms that restrain IL-17 cytokine-mediated signaling, particularly IL-17C. In this article, we show that the endoribonuclease MCP-1-induced protein 1 (MCPIP1; also known as regnase-1) is markedly upregulated in human psoriatic skin lesions. Similarly, MCPIP1 was overexpressed in the imiquimod (IMQ)-driven mouse model of cutaneous inflammation. Mice with an MCPIP1 deficiency (Zc3h12a+/-) displayed no baseline skin inflammation, but they showed exacerbated pathology following IMQ treatment. Pathology in Zc3h12a+/- mice was associated with elevated expression of IL-17A- and IL-17C-dependent genes, as well as with increased accumulation of neutrophils in skin. However, IL-17A and IL-17C expression was unaltered, suggesting that the increased inflammation in Zc3h12a+/- mice was due to enhanced downstream IL-17R signaling. Radiation chimeras demonstrated that MCPIP1 in nonhematopoietic cells is responsible for controlling skin pathology. Moreover, Zc3h12a+/-Il17ra-/- mice given IMQ showed almost no disease. To identify which IL-17RA ligand was essential, Zc3h12a+/-Il17a-/- and Zc3h12a+/-Il17c-/- mice were given IMQ; these mice had reduced but not fully abrogated pathology, indicating that MCPIP1 inhibits IL-17A and IL-17C signaling. Confirming this hypothesis, Zc3h12a-/- keratinocytes showed increased responsiveness to IL-17A and IL-17C stimulation. Thus, MCPIP1 is a potent negative regulator of psoriatic skin inflammation through IL-17A and IL-17C. Moreover, to our knowledge, MCPIP1 is the first described negative regulator of IL-17C signaling.
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Affiliation(s)
- Leticia Monin
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15260
| | | | - Erin E Childs
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15260
| | - Nilesh Amatya
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15260
| | - Xianying Xing
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109
| | - Akash H Verma
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15260
| | - Bianca M Coleman
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15260
| | - Abhishek V Garg
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15260
| | - Meaghan Killeen
- Department of Dermatology, University of Pittsburgh, Pittsburgh, PA 15260; and
| | - Alicia Mathers
- Department of Dermatology, University of Pittsburgh, Pittsburgh, PA 15260; and
| | - Nicole L Ward
- Department of Dermatology, Case Western Reserve University, Cleveland, OH 44106
| | - Sarah L Gaffen
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15260;
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14
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Poveda J, Sanz AB, Rayego-Mateos S, Ruiz-Ortega M, Carrasco S, Ortiz A, Sanchez-Niño MD. NFκBiz protein downregulation in acute kidney injury: Modulation of inflammation and survival in tubular cells. Biochim Biophys Acta Mol Basis Dis 2016; 1862:635-646. [PMID: 26776679 DOI: 10.1016/j.bbadis.2016.01.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 12/18/2015] [Accepted: 01/06/2016] [Indexed: 11/29/2022]
Abstract
Acute kidney injury is characterized by decreased renal function, tubular cell death and interstitial inflammation. The transcription factor NF-κB is a key regulator of genes involved in cell survival and the inflammatory response. In order to better understand the regulation and role of NF-κB in acute kidney injury we explored the expression of NF-κB-related genes in experimental acute kidney injury induced by a folic acid overdose. NFκBiz, a member of the IκB family of NF-κB regulators encoding NFκBiz, was among the top up-regulated NF-κB-related genes at the mRNA level in experimental acute kidney injury. However, the NFκBiz protein was constitutively expressed by normal tubular cells but was down-regulated in experimental acute kidney injury. Kidney NFκBiz mRNA upregulation and protein downregulation was also observed in acute kidney injury induced by cisplatin or unilateral kidney injury resulting from ureteral obstruction. Thus, we studied the consequences of NFκBiz protein downregulation by specific siRNA in cultured tubular epithelial cells. NFκBiz mRNA and protein were up-regulated by inflammatory cytokines (IL-1β or TWEAK/TNFα/IFNγ) and by LPS in cultured tubular cells. However, TWEAK only induced a very mild and short lived NFκBiz upregulation. NFκBiz targeting increased chemokine production and dampened Klotho downregulation induced by TWEAK, without modulating cell proliferation. NFκBiz targeting also rendered cells more resistant to apoptosis induced by serum deprivation or inflammatory cytokines. In conclusion, NFκBiz differentially regulates NF-κB-mediated responses of tubular cells to inflammatory cytokines in a gene-specific manner, and may be of potential therapeutic interest to limit inflammation in kidney disease.
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Affiliation(s)
- Jonay Poveda
- IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid; Fundación Renal Iñigo Álvarez de Toledo-IRSIN and REDINREN, Madrid, Spain.
| | - Ana B Sanz
- IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid; Fundación Renal Iñigo Álvarez de Toledo-IRSIN and REDINREN, Madrid, Spain
| | - Sandra Rayego-Mateos
- IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid; Fundación Renal Iñigo Álvarez de Toledo-IRSIN and REDINREN, Madrid, Spain
| | - Marta Ruiz-Ortega
- IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid; Fundación Renal Iñigo Álvarez de Toledo-IRSIN and REDINREN, Madrid, Spain
| | - Susana Carrasco
- IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid; Fundación Renal Iñigo Álvarez de Toledo-IRSIN and REDINREN, Madrid, Spain
| | - Alberto Ortiz
- IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid; Fundación Renal Iñigo Álvarez de Toledo-IRSIN and REDINREN, Madrid, Spain.
| | - Maria D Sanchez-Niño
- IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid; Fundación Renal Iñigo Álvarez de Toledo-IRSIN and REDINREN, Madrid, Spain.
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15
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Garg AV, Amatya N, Chen K, Cruz JA, Grover P, Whibley N, Conti HR, Hernandez Mir G, Sirakova T, Childs EC, Smithgall TE, Biswas PS, Kolls JK, McGeachy MJ, Kolattukudy PE, Gaffen SL. MCPIP1 Endoribonuclease Activity Negatively Regulates Interleukin-17-Mediated Signaling and Inflammation. Immunity 2015; 43:475-87. [PMID: 26320658 DOI: 10.1016/j.immuni.2015.07.021] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 05/31/2015] [Accepted: 06/16/2015] [Indexed: 01/13/2023]
Abstract
Interleukin-17 (IL-17) induces pathology in autoimmunity and infections; therefore, constraint of this pathway is an essential component of its regulation. We demonstrate that the signaling intermediate MCPIP1 (also termed Regnase-1, encoded by Zc3h12a) is a feedback inhibitor of IL-17 receptor signal transduction. MCPIP1 knockdown enhanced IL-17-mediated signaling, requiring MCPIP1's endoribonuclease but not deubiquitinase domain. MCPIP1 haploinsufficient mice showed enhanced resistance to disseminated Candida albicans infection, which was reversed in an Il17ra(-/-) background. Conversely, IL-17-dependent pathology in Zc3h12a(+/-) mice was exacerbated in both EAE and pulmonary inflammation. MCPIP1 degraded Il6 mRNA directly but only modestly downregulated the IL-6 promoter. However, MCPIP1 strongly inhibited the Lcn2 promoter by regulating the mRNA stability of Nfkbiz, encoding the IκBζ transcription factor. Unexpectedly, MCPIP1 degraded Il17ra and Il17rc mRNA, independently of the 3' UTR. The cumulative impact of MCPIP1 on IL-6, IκBζ, and possibly IL-17R subunits results in a biologically relevant inhibition of IL-17 signaling.
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Affiliation(s)
- Abhishek V Garg
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Nilesh Amatya
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Kong Chen
- Department of Pediatrics & Immunology, Richard King Mellon Institute for Pediatric Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - J Agustin Cruz
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Prerna Grover
- Department of Microbiology & Molecular Genetics, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Natasha Whibley
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Heather R Conti
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Gerard Hernandez Mir
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Tatiana Sirakova
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32816, USA
| | - Erin C Childs
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Thomas E Smithgall
- Department of Microbiology & Molecular Genetics, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Partha S Biswas
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Jay K Kolls
- Department of Pediatrics & Immunology, Richard King Mellon Institute for Pediatric Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Mandy J McGeachy
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Pappachan E Kolattukudy
- Department of Microbiology & Molecular Genetics, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Sarah L Gaffen
- Division of Rheumatology & Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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16
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Jin Z, Liang J, Wang J, Kolattukudy PE. MCP-induced protein 1 mediates the minocycline-induced neuroprotection against cerebral ischemia/reperfusion injury in vitro and in vivo. J Neuroinflammation 2015; 12:39. [PMID: 25888869 PMCID: PMC4359584 DOI: 10.1186/s12974-015-0264-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Accepted: 02/10/2015] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Minocycline, a broad-spectrum tetracycline antibiotic, has shown anti-inflammatory and neuroprotective effects in ischemic brain injury. The present study seeks to determine whether monocyte chemotactic protein-induced protein 1 (MCPIP1), a recently identified modulator of inflammatory reactions, is involved in the cerebral neuroprotection conferred by minocycline treatment in the animal model of focal cerebral ischemia and to elucidate the mechanisms of minocycline-induced ischemic brain tolerance. METHODS Focal cerebral ischemia was induced by middle cerebral artery occlusion (MCAO) for 2 h in male C57BL/6 mice and MCPIP1 knockout mice followed by 24- or 48-h reperfusion. Twelve hours before ischemia or 2 h after MCAO, mice were injected intraperitoneally with 90 mg/kg of minocycline hydrochloride. Thereafter, the animals were injected twice a day, at a dose of 90 mg/kg after ischemia until sacrificed. Transcription and expression of MCPIP1 gene was monitored by quantitative real-time PCR (qRT-PCR), Western blot, and immunohistochemistry. The neurobehavioral scores, infarction volumes, and proinflammatory cytokines in brain and NF-κB signaling were evaluated after ischemia/reperfusion. RESULTS MCPIP1 protein and mRNA levels significantly increased in mouse brain undergoing minocycline pretreatment. Minocycline treatment significantly attenuated the infarct volume, neurological deficits, and upregulation of proinflammatory cytokines in the brain of wild type mice after MCAO. MCPIP1-deficient mice failed to evoke minocycline-treatment-induced tolerance compared with that of the control MCPIP1-deficient group without minocycline treatment. Similarly, in vitro data showed that minocycline significantly induced the expression of MCPIP1 in primary neuron-glial cells, cortical neurons, and reduced oxygen glucose deprivation (OGD)-induced cell death. The absence of MCPIP1 blocked minocycline-induced protection on neuron-glial cells and cortical neurons treated with OGD. CONCLUSIONS Our in vitro and in vivo studies demonstrate that MCPIP1 is an important mediator of minocycline-induced protection from brain ischemia.
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Affiliation(s)
- Zhuqing Jin
- School of Basic Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
| | - Jian Liang
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, 4000 Central Florida Boulevard, Orlando, FL, 32816, USA.
| | - Jing Wang
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, 4000 Central Florida Boulevard, Orlando, FL, 32816, USA.
| | - Pappachan E Kolattukudy
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, 4000 Central Florida Boulevard, Orlando, FL, 32816, USA.
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17
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Translational control of immune responses: from transcripts to translatomes. Nat Immunol 2014; 15:503-11. [DOI: 10.1038/ni.2891] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 04/08/2014] [Indexed: 12/13/2022]
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