151
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Zhang L, Zhang J, Gao P. The potential of interleukin-37 as an effective therapeutic agent in asthma. Respir Res 2017; 18:192. [PMID: 29137646 PMCID: PMC5686801 DOI: 10.1186/s12931-017-0675-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 11/09/2017] [Indexed: 01/08/2023] Open
Abstract
Interleukin (IL)-37 belongs to the IL-1 cytokine family. It binds to IL-18Rα and recruits the orphan decoy IL-1R8. Emerging evidence shows that IL-37 is a key player in the regulation of inflammation, cellular differentiation, and proliferation. Altered IL-37 expression has been demonstrated in many inflammatory disease conditions, including asthma. In rheumatoid arthritis, IL-37 is involved in the regulation of proliferation, production of inflammatory mediators, and activation of inflammatory cells. Furthermore, this cytokine acts as a negative regulator of inflammation in inflammatory bowel disease. Similarly, IL-37 also appears to suppress allergic inflammation in asthma. In a murine model of asthma, local administration of IL-37 markedly reduced the degree of inflammatory cell infiltration and airway hyper-responsiveness. IL-37 has also been shown to be involved in a number of aspects of allergic inflammation, such as eosinophil and neutrophil recruitment, as well as inhibition of Th1/Th2/Th17 inflammatory mediators. However, the exact molecular mechanisms underlying the function of IL-37 in human asthma have yet to be fully elucidated. This review describes the current evidence regarding the role of IL-37 in the pathophysiology of asthma and evaluates both the potential of IL-37 as a biomarker for airway inflammation and a therapeutic target for the treatment of asthma.
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Affiliation(s)
- Lina Zhang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China.,Department of Gastroenterology, Changchun Central Hospital, Changchun, Jilin, China
| | - Jie Zhang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Peng Gao
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China.
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152
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Li Y, Zhao M, Guo C, Chu H, Li W, Chen X, Wang X, Li Y, Jia Y, Koussatidjoa S, Zhu F, Wang J, Wang X, Wang Q, Zhao W, Shi Y, Chen W, Zhang L. Intracellular mature IL-37 suppresses tumor metastasis via inhibiting Rac1 activation. Oncogene 2017; 37:1095-1106. [PMID: 29106392 DOI: 10.1038/onc.2017.405] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 06/24/2017] [Accepted: 09/24/2017] [Indexed: 12/18/2022]
Abstract
IL-37, a newly found anti-inflammatory cytokine of the IL-1 family, has both extracellular and intracellular functions. Accumulating evidences indicate that it is also involved in tumor progression. However, the mechanism and its intracellular target are unclear. In this study, clinical data from 84 patients showed that loss or reduced expression of IL-37 in lung adenocarcinoma tissues was significantly associated with tumor metastasis. We further provided evidence that IL-37 inhibited effectively tumor metastasis in vitro and in vivo. Moreover, we uncovered a novel mechanism by which IL-37 suppressed tumor cell migration via its intracellular mature form (amino acids 46-218). Intracellular mature form of IL-37, but not its extracellular form, markedly inhibited migration of multiple kinds of tumor cells through inhibiting Rac1 activation. Mechanistically, intracellular mature IL-37 directly bound to the CAAX motif in the C-terminal hypervariable region of Rac1, and then inhibited Rac1 membrane translocation and subsequent downstream signaling. Our research identifies intracellular mature IL-37 as a novel endogenous inhibitor of Rac1. Given the crucial roles of Rac1 in tumor angiogenesis and metastasis, intracellular mature IL-37 might serve as a potential strategy for the control of Rac1 activity and tumor progression.
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Affiliation(s)
- Y Li
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - M Zhao
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - C Guo
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - H Chu
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - W Li
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - X Chen
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - X Wang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Y Li
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Y Jia
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - S Koussatidjoa
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - F Zhu
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - J Wang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - X Wang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Q Wang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - W Zhao
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - Y Shi
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
| | - W Chen
- Mucosal Immunology Section, National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health (NIH), Bethesda, MD, USA
| | - L Zhang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province, Shandong University School of Basic Medical Sciences, Jinan, China
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153
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Anuradha R, Munisankar S, Bhootra Y, Dolla C, Kumaran P, Nutman TB, Babu S. Modulation of CD4 + and CD8 + T Cell Function and Cytokine Responses in Strongyloides stercoralis Infection by Interleukin-27 (IL-27) and IL-37. Infect Immun 2017; 85:e00500-17. [PMID: 28874444 PMCID: PMC5649007 DOI: 10.1128/iai.00500-17] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 08/25/2017] [Indexed: 11/20/2022] Open
Abstract
Strongyloides stercoralis infection is associated with diminished antigen-specific Th1- and Th17-associated responses and enhanced Th2-associated responses. Interleukin-27 (IL-27) and IL-37 are two known anti-inflammatory cytokines that are highly expressed in S. stercoralis infection. We therefore wanted to examine the role of IL-27 and IL-37 in regulating CD4+ and CD8+ T cell responses in S. stercoralis infection. To this end, we examined the frequency of Th1/Tc1, Th2/Tc2, Th9/Tc9, Th17/Tc17, and Th22/Tc22 cells in 15 S. stercoralis-infected individuals and 10 uninfected individuals stimulated with parasite antigen following IL-27 or IL-37 neutralization. We also examined the production of prototypical type 1, type 2, type 9, type 17, and type 22 cytokines in the whole-blood supernatants. Our data reveal that IL-27 or IL-37 neutralization resulted in significantly enhanced frequencies of Th1/Tc1, Th2/Tc2, Th17/Tc17, Th9, and Th22 cells with parasite antigen stimulation. There was no induction of any T cell response in uninfected individuals following parasite antigen stimulation and IL-27 or IL-37 neutralization. Moreover, we also observed increased production of gamma interferon (IFN-γ), IL-5, IL-9, IL-17, and IL-22 and decreased production of IL-10 following IL-27 and IL-37 neutralization and parasite antigen stimulation in whole-blood cultures. Thus, we demonstrate that IL-27 and IL-37 limit the induction of particular T cell subsets along with cytokine responses in S. stercoralis infections, which suggest the importance of IL-27 and IL-37 in immune modulation in a chronic helminth infection.
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Affiliation(s)
- Rajamanickam Anuradha
- National Institutes of Health-NIRT-International Center for Excellence in Research, Chennai, India
| | - Saravanan Munisankar
- National Institutes of Health-NIRT-International Center for Excellence in Research, Chennai, India
| | - Yukthi Bhootra
- National Institutes of Health-NIRT-International Center for Excellence in Research, Chennai, India
| | | | - Paul Kumaran
- National Institute for Research in Tuberculosis, Chennai, India
| | - Thomas B Nutman
- Laboratory of Parasitic Diseases, NIAID, NIH, Bethesda, Maryland, USA
| | - Subash Babu
- National Institutes of Health-NIRT-International Center for Excellence in Research, Chennai, India
- Laboratory of Parasitic Diseases, NIAID, NIH, Bethesda, Maryland, USA
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154
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Ding L, Hong X, Sun B, Huang Q, Wang X, Liu X, Li L, Huang Z, Liu D. IL-37 is associated with osteoarthritis disease activity and suppresses proinflammatory cytokines production in synovial cells. Sci Rep 2017; 7:11601. [PMID: 28912428 PMCID: PMC5599693 DOI: 10.1038/s41598-017-11397-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 08/22/2017] [Indexed: 01/15/2023] Open
Abstract
The objective of this study is to investigate the correlation between IL-37 level and osteoarthritis activity and to determine the anti-inflammatory effects of IL-37 in peripheral blood mononuclear cells (PBMCs) and synovial cells (SCs) from osteoarthritis (OA) patients, which including 32 patients with erosive inflammatory OA (EIOA) and 40 patients with primary generalized OA (PGOA), 40 age and sex matched healthy volunteers were recruited as healthy controls (HCs). The protein and relative mRNA levels of IL-37 were significant increased in the blood of EIOA patients compared with those of PGOA patients and HCs. Serum IL-37 levels of OA patients were positively correlated with VAS score, as well as with CRP, ESR in blood. Positive correlations were also observed among IL-37 with IL-1β, TNF-α and IL-6 in synovial cells. Furthermore, the expression of IL-1β, TNF-α and IL-6 in PBMCs and SCs from EIOA patients was suppressed by IL-37 in vitro. In conclusion, our results indicated that IL-37 increased in EIOA patients and was positively correlated with disease activity, the pro-inflammatory cytokines such as IL-1β, TNF-α and IL-6 in PBMCs and synovial cells from EIOA patients were restrained by recombinant IL-37. Thus, IL-37 may serve as a novel therapeutic target for the treatment of OA inflammation.
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Affiliation(s)
- Liping Ding
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Xiaoping Hong
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Baodong Sun
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Qin Huang
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Xiaoqi Wang
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen, China
| | - Xiaokai Liu
- Department of Immunology and Microbiology, Biological Therapy Institute, Shenzhen University School of Medicine, Shenzhen, China
| | - Lingyun Li
- Department of Immunology and Microbiology, Biological Therapy Institute, Shenzhen University School of Medicine, Shenzhen, China
| | - Zhong Huang
- Department of Immunology and Microbiology, Biological Therapy Institute, Shenzhen University School of Medicine, Shenzhen, China.
| | - Dongzhou Liu
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen, China.
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155
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Giacoppo S, Thangavelu SR, Diomede F, Bramanti P, Conti P, Trubiani O, Mazzon E. Anti-inflammatory effects of hypoxia-preconditioned human periodontal ligament cell secretome in an experimental model of multiple sclerosis: a key role of IL-37. FASEB J 2017; 31:5592-5608. [PMID: 28842429 PMCID: PMC5690382 DOI: 10.1096/fj.201700524r] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/07/2017] [Indexed: 02/06/2023]
Abstract
Recent research has widely investigated the anti-inflammatory effects of mesenchymal stem cells and their secretory products, termed the secretome, in the treatment of multiple sclerosis (MS). The present study examined the capacity of the conditioned medium (CM) from human periodontal ligament stem cells (hPLSCs) under hypoxia (H-hPDLSCs-CM) to suppress experimental autoimmune encephalomyelitis (EAE), a murine model of MS. To induce EAE, female C57BL/6 mice were immunized with myelin oligodendroglial glycoprotein peptide35–55. At the onset of symptoms, H-hPDLSCs-CM was infused via the tail vein of mice. Our results demonstrate the efficacy of H-hPDLSCs-CM treatment in diminishing clinical and histologic disease score. A key finding from this study is the marked expression of anti-inflammatory cytokine IL-37, paralleled by the suppression of proinflammatory cytokines in mice with EAE that were treated with H-hPDLSCs-CM. In addition, a consequent modulation of oxidative stress, autophagic, and apoptotic markers was observed in mice with EAE after hPDLSCs-CM administration. In addition, to provide additional evidence of the molecular mechanisms that underlie H-hPDLSCs-CM, we investigated its therapeutic action in scratch injury–exposed NSC-34 neurons, an in vitro model of injury. This model reproduces severe inflammation and oxidative stress conditions as observed after EAE damage. In vitro results corroborate the ability of hPDLSCs-CM to modulate inflammatory, oxidative stress, and apoptotic pathways. Taken together, our findings suggest H-hPDLSCs-CM as a new pharmacologic opportunity for the management of MS.—Giacoppo, S., Thangavelu, S. R., Diomede, F., Bramanti, P., Conti, P., Trubiani, O., Mazzon, E. Anti-inflammatory effects of hypoxia-preconditioned human periodontal ligament cell secretome in an experimental model of multiple sclerosis: a key role of IL-37.
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Affiliation(s)
- Sabrina Giacoppo
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Centro Neurolesi Bonino-Pulejo, Contrada Casazza, Messina, Italy
| | - Soundara Rajan Thangavelu
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Centro Neurolesi Bonino-Pulejo, Contrada Casazza, Messina, Italy
| | - Francesca Diomede
- Stem Cells and Regenerative Medicine Laboratory, Department of Medical, Oral, and Biotechnological Sciences, University G. d'Annunzio, Chieti, Italy
| | - Placido Bramanti
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Centro Neurolesi Bonino-Pulejo, Contrada Casazza, Messina, Italy
| | - Pio Conti
- Immunology Division, Postgraduate Medical School, University of Chieti-Pescara, Chieti, Italy
| | - Oriana Trubiani
- Stem Cells and Regenerative Medicine Laboratory, Department of Medical, Oral, and Biotechnological Sciences, University G. d'Annunzio, Chieti, Italy
| | - Emanuela Mazzon
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Centro Neurolesi Bonino-Pulejo, Contrada Casazza, Messina, Italy;
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156
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The Effects of Selective Hematopoietic Expression of Human IL-37 on Systemic Inflammation and Atherosclerosis in LDLr-Deficient Mice. Int J Mol Sci 2017; 18:ijms18081672. [PMID: 28792474 PMCID: PMC5578062 DOI: 10.3390/ijms18081672] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/21/2017] [Accepted: 07/28/2017] [Indexed: 12/28/2022] Open
Abstract
The human cytokine interleukin (IL)-37 has potent anti-inflammatory capacities, and hematopoietic cell-specific transgenic overexpression of IL-37 in mice protects against septic shock and colitis. In the present study we investigated the effect of hematopoietic expression of IL-37 on atherosclerosis development under low-grade inflammatory conditions. Low-density lipoprotein receptor (LDLr)-deficient mice were lethally irradiated and transplanted with bone marrow from IL-37-transgenic or control wild-type mice and fed a Western-type diet (WTD; 1% cholesterol) for eight weeks. Metabolic and inflammatory parameters were monitored and atherosclerosis was assessed in the aortic valve area. Hematopoietic IL-37 expression did not influence body weight, food intake and plasma cholesterol levels during the study. Plasma soluble E-selectin levels were increased with WTD-feeding as compared to chow-feeding, but were not influenced by IL-37 expression. IL-37 expression reduced the inflammatory state as indicated by reduced white blood cell counts and by reduced basal and lipopolysaccharide-induced cytokine response by peritoneal macrophages ex vivo. IL-37 expression did not influence the atherosclerotic lesion area. Lesion composition was marginally affected. Smooth muscle cell content was decreased, but macrophage and collagen content were not different. We conclude that under low-grade inflammatory conditions, hematopoietic IL-37 expression reduces the inflammatory state, but does not influence atherosclerosis development in hyperlipidemic LDLr-deficient mice.
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157
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Dinarello CA, Nold-Petry C, Nold M, Fujita M, Li S, Kim S, Bufler P. Suppression of innate inflammation and immunity by interleukin-37. Eur J Immunol 2017; 46:1067-81. [PMID: 27060871 DOI: 10.1002/eji.201545828] [Citation(s) in RCA: 182] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 03/04/2016] [Accepted: 04/06/2016] [Indexed: 02/06/2023]
Abstract
IL-37 is unique in the IL-1 family in that unlike other members of the family, IL-37 broadly suppresses innate immunity. IL-37 can be elevated in humans with inflammatory and autoimmune diseases where it likely functions to limit inflammation. Transgenic mice expressing human IL-37 (IL37-tg) exhibit less severe inflammation in models of endotoxin shock, colitis, myocardial infarction, lung, and spinal cord injury. IL37-tg mice have reduced antigen-specific responses and dendritic cells (DCs) from these mice exhibit characteristics of tolerogenic DCs. Compared to aging wild-type (WT) mice, aging IL37-tg mice are protected against B-cell leukemogenesis and heart failure. Treatment of WT mice with recombinant human IL-37 has been shown to be protective in several models of inflammation and injury. IL-37 binds to the IL-18 receptor but then recruits the orphan IL-1R8 (formerly TIR8 or SIGIRR) in order to function as an inhibitor. Here, we review the discovery of IL-37, its production, release, and mechanisms by which IL-37 reduces inflammation and suppresses immune responses. The data reviewed here suggest a therapeutic potential for IL-37.
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Affiliation(s)
- Charles A Dinarello
- University of Colorado Denver, Aurora, CO, USA.,Radboud University Medical Center, Nijmegen, The Netherlands
| | | | | | | | - Suzhao Li
- University of Colorado Denver, Aurora, CO, USA
| | - Soohyun Kim
- University of Colorado Denver, Aurora, CO, USA.,Konkuk University, Seoul, Republic of Korea
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158
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Li J, Zhai Y, Ao L, Hui H, Fullerton DA, Dinarello CA, Meng X. Interleukin-37 suppresses the inflammatory response to protect cardiac function in old endotoxemic mice. Cytokine 2017; 95:55-63. [PMID: 28237874 PMCID: PMC5441934 DOI: 10.1016/j.cyto.2017.02.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 02/07/2017] [Accepted: 02/10/2017] [Indexed: 02/05/2023]
Abstract
Myocardial inflammatory responses to endotoxemia are enhanced in old mice, which results in worse cardiac dysfunction. Anti-inflammatory cytokine interleukin (IL)-37 has a broad effect on innate immunoresponses. We hypothesized that IL-37 suppresses myocardial inflammatory responses to protect cardiac function during endotoxemia in old mice. Old (20-24month) wild-type (WT), and IL-37 transgenic (IL-37tg) mice were treated with lipopolysaccharide (LPS, 0.5mg/kg, iv) or normal saline (0.1ml/mouse, iv). Six hours later, left ventricle (LV) function was assessed using a pressure-volume microcatheter. Levels of monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-6 in plasma and myocardial tissue, as well as mononuclear cell density in the myocardium, were examined. Cardiac microvascular endothelial cells isolated from WT and IL-37tg mice were treated with LPS (0.2µg/ml) for 0.5-24h. Nuclear factor-kappa B (NF-κB) p65 phosphorylation was examined by immunoblotting, and MCP-1 levels in cell culture supernatant was determined using enzyme-linked immunosorbent assay. LV dysfunction in old WT endotoxemic mice was accompanied by up-regulated MCP-1, myocardial accumulation of mononuclear cells and production of TNF-α, IL-1β and IL-6. Expression of IL-37 suppressed myocardial inflammatory responses to endotoxemia in old mice, resulting in improved LV function. Treatment of old WT endotoxemic mice with recombinant IL-37 also improved LV function. In vitro experiments revealed that cardiac microvascular endothelial cells from IL-37tg mice had attenuated NF-κB activation and MCP-1 production following LPS stimulation. In conclusion, IL-37 is potent to suppress myocardial inflammation and protects against cardiac dysfunction during endotoxemia in old mice.
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Affiliation(s)
- Jilin Li
- Departments of Surgery, University of Colorado Denver, Aurora, CO 80045, USA; Division of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou 515041, China
| | - Yufeng Zhai
- Departments of Surgery, University of Colorado Denver, Aurora, CO 80045, USA
| | - Lihua Ao
- Departments of Surgery, University of Colorado Denver, Aurora, CO 80045, USA
| | - Haipeng Hui
- Departments of Surgery, University of Colorado Denver, Aurora, CO 80045, USA
| | - David A Fullerton
- Departments of Surgery, University of Colorado Denver, Aurora, CO 80045, USA
| | - Charles A Dinarello
- Departments of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - Xianzhong Meng
- Departments of Surgery, University of Colorado Denver, Aurora, CO 80045, USA; Division of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou 515041, China.
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159
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Ji Q, Meng K, Yu K, Huang S, Huang Y, Min X, Zhong Y, Wu B, Liu Y, Nie S, Zhang J, Zhou Y, Zeng Q. Exogenous interleukin 37 ameliorates atherosclerosis via inducing the Treg response in ApoE-deficient mice. Sci Rep 2017; 7:3310. [PMID: 28607385 PMCID: PMC5468328 DOI: 10.1038/s41598-017-02987-4] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 04/21/2017] [Indexed: 01/08/2023] Open
Abstract
Our previous study indicated that interleukin (IL)-37 is involved in atherosclerosis. In the present study, Anterior tibial arteries were collected from diabetes patients and controls. A histopathological analysis showed that IL-37 was over-expressed in human atherosclerotic plaques. Many types of cells including macrophages, vascular smooth muscle cells (VSMCs), endothelial cells and T lymphocyte expressed IL-37 in human atherosclerotic plaques. ApoE-/- mice were divided into a control group and a recombinant human IL-37-treated group. The IL-37 treatment resulted in a significant decrease in macrophages and CD4+ T lymphocytes and a substantial increase in VSMCs and collagen in atherosclerotic plaques, resulting in a reduction in atherosclerotic plaque size. Furthermore, the IL-37 treatment modulated the CD4+ T lymphocyte activity, including a decrease in T helper cell type 1 (Th1) and Th17 cells and an increase in regulatory T (Treg) cells, and inhibited the maturity of dendritic cells both in vivo and in vitro. In addition, treatment with anti-IL-10 receptor monoclonal antibody abrogated the anti-atherosclerotic effects of IL-37. These data suggest that exogenous IL-37 ameliorates atherosclerosis via inducing the Treg response. IL-37 may be a novel therapeutic to prevent and treat atherosclerotic disease.
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Affiliation(s)
- Qingwei Ji
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, The Key Laboratory of Remodeling-related Cardiovascular Disease, Ministry of Education, Beijing, 100029, China
| | - Kai Meng
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kunwu Yu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Song Huang
- Department of Orthopedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Huang
- Department of Ultrasound, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Xiaohong Min
- Department of Pathology, Puren Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Yucheng Zhong
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bangwei Wu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuzhou Liu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaoping Nie
- Emergency & Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, The Key Laboratory of Remodeling-related Cardiovascular Disease, Ministry of Education, Beijing, 100029, China
| | - Jianwei Zhang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, The Key Laboratory of Remodeling-related Cardiovascular Disease, Ministry of Education, Beijing, 100029, China
| | - Yujie Zhou
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, The Key Laboratory of Remodeling-related Cardiovascular Disease, Ministry of Education, Beijing, 100029, China.
| | - Qiutang Zeng
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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160
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Schauer AE, Klassert TE, von Lachner C, Riebold D, Schneeweiß A, Stock M, Müller MM, Hammerschmidt S, Bufler P, Seifert U, Dietert K, Dinarello CA, Nold MF, Gruber AD, Nold-Petry CA, Slevogt H. IL-37 Causes Excessive Inflammation and Tissue Damage in Murine Pneumococcal Pneumonia. J Innate Immun 2017; 9:403-418. [PMID: 28601872 PMCID: PMC6738772 DOI: 10.1159/000469661] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 03/09/2017] [Accepted: 03/09/2017] [Indexed: 12/20/2022] Open
Abstract
Streptococcus pneumoniae infections can lead to severe complications with excessive immune activation and tissue damage. Interleukin-37 (IL-37) has gained importance as a suppressor of innate and acquired immunity, and its effects have been therapeutic as they prevent tissue damage in autoimmune and inflammatory diseases. By using RAW macrophages, stably transfected with human IL-37, we showed a 70% decrease in the cytokine levels of IL-6, TNF-α, and IL-1β, and a 2.2-fold reduction of the intracellular killing capacity of internalized pneumococci in response to pneumococcal infection. In a murine model of infection with S. pneumoniae, using mice transgenic for human IL-37b (IL-37tg), we observed an initial decrease in cytokine expression of IL-6, TNF-α, and IL-1β in the lungs, followed by a late-phase enhancement of pneumococcal burden and subsequent increase of proinflammatory cytokine levels. Additionally, a marked increase in recruitment of alveolar macrophages and neutrophils was noted, while TRAIL mRNA was reduced 3-fold in lungs of IL-37tg mice, resulting in necrotizing pneumonia with augmented death of infiltrating neutrophils, enhanced bacteremic spread, and increased mortality. In conclusion, we have identified that IL-37 modulates several core components of a successful inflammatory response to pneumococcal pneumonia, which lead to increased inflammation, tissue damage, and mortality.
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Affiliation(s)
- Anja E. Schauer
- Septomics Research Center, Jena University Hospital, Jena, Germany
| | | | | | - Diana Riebold
- InfectoGnostics Research Campus Jena, Centre for Applied Research Jena, Jena, Germany
| | - Anne Schneeweiß
- Septomics Research Center, Jena University Hospital, Jena, Germany
| | - Magdalena Stock
- Septomics Research Center, Jena University Hospital, Jena, Germany
| | - Mario M. Müller
- Septomics Research Center, Jena University Hospital, Jena, Germany
| | - Sven Hammerschmidt
- Department of Genetics of Microorganisms, Interfaculty Institute for Genetics and Functional Genomics, Ernst Moritz Arndt University of Greifswald, Greifswald, Germany
| | - Philip Bufler
- Department of Pediatrics, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - Ulrike Seifert
- Friedrich Loeffler Institute of Medical Microbiology, University Medicine Greifswald, Greifswald, Germany
| | - Kristina Dietert
- Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Charles A. Dinarello
- Department of Medicine, University of Colorado Denver, Aurora, CO, USA
- Department of Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marcel F. Nold
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
| | - Achim D. Gruber
- Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Claudia A. Nold-Petry
- The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, VIC, Australia
- Department of Paediatrics, Monash University, Melbourne, VIC, Australia
| | - Hortense Slevogt
- Septomics Research Center, Jena University Hospital, Jena, Germany
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161
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Neudecker V, Haneklaus M, Jensen O, Khailova L, Masterson JC, Tye H, Biette K, Jedlicka P, Brodsky KS, Gerich ME, Mack M, Robertson AAB, Cooper MA, Furuta GT, Dinarello CA, O'Neill LA, Eltzschig HK, Masters SL, McNamee EN. Myeloid-derived miR-223 regulates intestinal inflammation via repression of the NLRP3 inflammasome. J Exp Med 2017; 214:1737-1752. [PMID: 28487310 PMCID: PMC5460990 DOI: 10.1084/jem.20160462] [Citation(s) in RCA: 297] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 01/22/2017] [Accepted: 03/28/2017] [Indexed: 12/16/2022] Open
Abstract
Neudecker et al. define a role for a microRNA, miR-223, in regulating the inflammatory tone of the intestine by constraining nlrp3 inflammasome activation in CCR2+ monocytes and attenuating excessive IL-1β–driven inflammation. Therapeutic nanoparticle delivery of miR-223 mimetics limits experimental colitis. MicroRNA (miRNA)-mediated RNA interference regulates many immune processes, but how miRNA circuits orchestrate aberrant intestinal inflammation during inflammatory bowel disease (IBD) is poorly defined. Here, we report that miR-223 limits intestinal inflammation by constraining the nlrp3 inflammasome. miR-223 was increased in intestinal biopsies from patients with active IBD and in preclinical models of intestinal inflammation. miR-223-/y mice presented with exacerbated myeloid-driven experimental colitis with heightened clinical, histopathological, and cytokine readouts. Mechanistically, enhanced NLRP3 inflammasome expression with elevated IL-1β was a predominant feature during the initiation of colitis with miR-223 deficiency. Depletion of CCR2+ inflammatory monocytes and pharmacologic blockade of IL-1β or NLRP3 abrogated this phenotype. Generation of a novel mouse line, with deletion of the miR-223 binding site in the NLRP3 3′ untranslated region, phenocopied the characteristics of miR-223-/y mice. Finally, nanoparticle-mediated overexpression of miR-223 attenuated experimental colitis, NLRP3 levels, and IL-1β release. Collectively, our data reveal a previously unappreciated role for miR-223 in regulating the innate immune response during intestinal inflammation.
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Affiliation(s)
- Viola Neudecker
- Clinic for Anesthesiology, University Hospital of Ludwig-Maximilians-University, 80539 Munich, Germany.,Department of Anesthesiology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Moritz Haneklaus
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Owen Jensen
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045.,Department of Anesthesiology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Ludmila Khailova
- Department of Anesthesiology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Joanne C Masterson
- Gastrointestinal Eosinophilic Disease Program, Section of Pediatric Gastroenterology, Hepatology, and Nutrition, Children's Hospital Colorado, Aurora, CO 80045.,Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Hazel Tye
- Division of Inflammation, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Kathryn Biette
- Gastrointestinal Eosinophilic Disease Program, Section of Pediatric Gastroenterology, Hepatology, and Nutrition, Children's Hospital Colorado, Aurora, CO 80045.,Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Paul Jedlicka
- Department of Pathology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Kelley S Brodsky
- Department of Anesthesiology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Mark E Gerich
- Division of Gastroenterology and Hepatology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045.,Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Matthias Mack
- Department of Internal Medicine II, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Avril A B Robertson
- Institute for Molecular Bioscience, The University of Queensland, Brisbane City, QLD 4067, Australia
| | - Matthew A Cooper
- Institute for Molecular Bioscience, The University of Queensland, Brisbane City, QLD 4067, Australia
| | - Glenn T Furuta
- Gastrointestinal Eosinophilic Disease Program, Section of Pediatric Gastroenterology, Hepatology, and Nutrition, Children's Hospital Colorado, Aurora, CO 80045.,Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Charles A Dinarello
- Department of Medicine, Radboud University Medical Center, 6525 GA Nijmegen, Netherlands.,Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Luke A O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Holger K Eltzschig
- Department of Anesthesiology, University of Texas Medical School at Houston, Houston, TX 77030.,Department of Anesthesiology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Seth L Masters
- Division of Inflammation, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Eóin N McNamee
- Mucosal Inflammation Program, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045 .,Department of Anesthesiology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
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162
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Pastorelli L, Pizarro TT. Interleukin-37: A Peacekeeper at the Intestinal Borders. Dig Dis Sci 2017; 62:1103-1106. [PMID: 28289924 DOI: 10.1007/s10620-017-4523-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Luca Pastorelli
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.,Department of Biomedical Sciences for Health, University of Milan, 20133, Milan, Italy.,Gastroenterology and Digestive Endoscopy Unit, IRCCS Policlinico San Donato, 20097, San Donato Milanese, Italy
| | - Theresa T Pizarro
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA.
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163
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Allam G, Mohamed IAA, Alswat KA, Abbadi SH, Nassif R, Alharthi BJ, Nasr A. Association of IL-37 gene polymorphisms with susceptibility to tuberculosis in Saudi subjects. Microbiol Immunol 2017; 60:778-786. [PMID: 27761939 DOI: 10.1111/1348-0421.12444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/10/2016] [Accepted: 10/17/2016] [Indexed: 12/18/2022]
Abstract
Tuberculosis (TB) is one of the most common infectious diseases worldwide. IL-37, a novel member of the IL-1 family, has anti-inflammatory activity. Various cytokine genes polymorphisms are reportedly associated with susceptibility to TB infection. However, an association between genetic variations in the IL-37 gene and susceptibility to TB infection has not been investigated. The aim of this case-control study was therefore to identify such an association in Saudi subjects, in which five single-nucleotide polymorphisms (SNPs) in the IL-37 gene were assessed. Serum concentrations of IL-37 were evaluated using ELISA, and genetic variants genotyped by multiplex PCR and ligase detection reaction. It was found that the C/C genotype of rs2723176 (-6962 A/C) occurs significantly more frequently in patients with active TB and that the C allele of this SNP is associated with TB. In addition, the C allele of rs2723176 SNP was associated with high circulating concentrations of IL-37. However, the genotype and allele frequency of the other four SNPs (rs3811046, rs3811047, rs2723186 and rs2723187) were not significantly associated with TB infection. In conclusion, the present data suggest that rs2723176 SNP of IL-37 is involved in the development of TB infection. Furthermore, high circulating concentrations of IL-37 may have a negative effect on protective immunity against TB infection.
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Affiliation(s)
- Gamal Allam
- Department of Microbiology and Immunology, College of Medicine, Taif University, Taif, Saudi Arabia.,Immunology Section, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Imad A A Mohamed
- Department of Microbiology and Immunology, College of Medicine, Taif University, Taif, Saudi Arabia.,Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt
| | - Khaled A Alswat
- Department of Internal Medicine, College of Medicine, Taif University, Taif, Saudi Arabia
| | - Said H Abbadi
- Department of Microbiology and Immunology, Faculty of Medicine, Suez Canal University, Ismaileya, Egypt
| | - Raad Nassif
- Department of Pulmonary Medicine, King Faisal Hospital (KFH), Taif, Saudi Arabia
| | - Bader J Alharthi
- Department of Pulmonary Medicine, King Faisal Hospital (KFH), Taif, Saudi Arabia
| | - Amre Nasr
- Department of Basic Medical Sciences, College of Medicine, KSAU-HS, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Centre, National Guard Health Affairs, Riyadh, Saudi Arabia.,Department of Microbiology, Faculty of Science and Technology, Al-Neelain University, Khartoum, Sudan
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164
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Recent Advances: The Imbalance of Cytokines in the Pathogenesis of Inflammatory Bowel Disease. Mediators Inflamm 2017; 2017:4810258. [PMID: 28420941 PMCID: PMC5379128 DOI: 10.1155/2017/4810258] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 02/22/2017] [Indexed: 12/17/2022] Open
Abstract
Cytokines play an important role in the immunopathogenesis of inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, where they drive and regulate multiple aspects of intestinal inflammation. The imbalance between proinflammatory and anti-inflammatory cytokines that occurs in IBD results in disease progression and tissue damage and limits the resolution of inflammation. Targeting cytokines have been novel strategies in the treatment of IBD. Recent studies show the beneficial effects of anticytokine treatments to IBD patients, and multiple novel cytokines are found to be involved in the pathogenesis of IBD. In this review, we will discuss the recent advances of novel biologics in clinics and clinical trials, and novel proinflammatory and anti-inflammatory cytokines found in IBD with focusing on IL-12 family and IL-1 family members as well as their relevance to the potential therapy of IBD.
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165
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Park JH, Peyrin-Biroulet L, Eisenhut M, Shin JI. IBD immunopathogenesis: A comprehensive review of inflammatory molecules. Autoimmun Rev 2017; 16:416-426. [PMID: 28212924 DOI: 10.1016/j.autrev.2017.02.013] [Citation(s) in RCA: 211] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 01/19/2017] [Indexed: 02/06/2023]
Abstract
Inflammatory molecules play a crucial role in the pathogenesis of inflammatory bowel disease (IBD) such as ulcerative colitis and Crohn's disease, both of which are chronic inflammatory conditions of the gastrointestinal tract. Abnormal expressions of pro- and anti-inflammatory molecules have been described to cause an imbalance to the gut innate and adaptive immunity, and recently a large portion of research in IBD has been geared towards identifying novel molecules that may be used as potential therapeutic targets. Understanding of these inflammatory molecules has suggested that although ulcerative colitis and Crohn's disease share many common clinical symptoms and signs, they are in fact two separate clinical entities characterized by different immunopathogenesis. In this review, we comprehensively discuss the roles of numerous inflammatory molecules including but not limited to cytokines, chemokines, inflammasomes, microRNAs and neuropeptides and their expression status in ulcerative colitis and Crohn's disease in relation to their effects on the overall intestinal inflammatory process.
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Affiliation(s)
- Jae Hyon Park
- Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea
| | - Laurent Peyrin-Biroulet
- Inserm U954 and Department of Gastroenterology, Nancy University Hospital, Université de Lorraine, France
| | - Michael Eisenhut
- Department of Paediatrics, Luton & Dunstable University Hospital NHS Foundation Trust, Lewsey Road, Luton, LU40DZ, United Kingdom
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Severance Children's Hospital, Seoul, Republic of Korea.
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166
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Zeng Q, Song R, Fullerton DA, Ao L, Zhai Y, Li S, Ballak DB, Cleveland JC, Reece TB, McKinsey TA, Xu D, Dinarello CA, Meng X. Interleukin-37 suppresses the osteogenic responses of human aortic valve interstitial cells in vitro and alleviates valve lesions in mice. Proc Natl Acad Sci U S A 2017; 114:1631-1636. [PMID: 28137840 PMCID: PMC5321035 DOI: 10.1073/pnas.1619667114] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Calcific aortic valve disease is a chronic inflammatory process, and aortic valve interstitial cells (AVICs) from diseased aortic valves express greater levels of osteogenic factors in response to proinflammatory stimulation. Here, we report that lower cellular levels of IL-37 in AVICs of diseased human aortic valves likely account for augmented expression of bone morphogenetic protein-2 (BMP-2) and alkaline phosphatase (ALP) following stimulation of Toll-like receptor (TLR) 2 or 4. Treatment of diseased AVICs with recombinant human IL-37 suppresses the levels of BMP-2 and ALP as well as calcium deposit formation. In mice, aortic valve thickening is observed when exposed to a TLR4 agonist or a high fat diet for a prolonged period; however, mice expressing human IL-37 exhibit significantly lower BMP-2 levels and less aortic valve thickening when subjected to the same regimens. A high fat diet in mice results in oxidized low-density lipoprotein (oxLDL) deposition in aortic valve leaflets. Moreover, the osteogenic responses in human AVICs induced by oxLDL are suppressed by recombinant IL-37. Mechanistically, reduced osteogenic responses to oxLDL in human AVICs are associated with the ability of IL-37 to inhibit NF-κB and ERK1/2. These findings suggest that augmented expression of osteogenic factors in AVICs of diseased aortic valves from humans is at least partly due to a relative IL-37 deficiency. Because recombinant IL-37 suppresses the osteogenic responses in human AVICs and alleviates aortic valve lesions in mice exposed to high fat diet or a proinflammatory stimulus, IL-37 has therapeutic potential for progressive calcific aortic valve disease.
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Affiliation(s)
- Qingchun Zeng
- Department of Surgery, University of Colorado Denver, Aurora, CO 80045
- Department of Cardiology, Southern Medical University, Guangzhou, China 510515
| | - Rui Song
- Department of Surgery, University of Colorado Denver, Aurora, CO 80045
- Department of Pathophysiology, Southern Medical University, Guangzhou, China 510515
| | - David A Fullerton
- Department of Surgery, University of Colorado Denver, Aurora, CO 80045
| | - Lihua Ao
- Department of Surgery, University of Colorado Denver, Aurora, CO 80045
| | - Yufeng Zhai
- Department of Surgery, University of Colorado Denver, Aurora, CO 80045
| | - Suzhao Li
- Department of Medicine, University of Colorado Denver, Aurora, CO 80045
| | - Dov B Ballak
- Department of Medicine, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | | | - T Brett Reece
- Department of Surgery, University of Colorado Denver, Aurora, CO 80045
| | | | - Dingli Xu
- Department of Cardiology, Southern Medical University, Guangzhou, China 510515;
| | - Charles A Dinarello
- Department of Medicine, University of Colorado Denver, Aurora, CO 80045;
- Department of Medicine, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Xianzhong Meng
- Department of Surgery, University of Colorado Denver, Aurora, CO 80045;
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167
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Interleukin 37 reverses the metabolic cost of inflammation, increases oxidative respiration, and improves exercise tolerance. Proc Natl Acad Sci U S A 2017; 114:2313-2318. [PMID: 28193888 DOI: 10.1073/pnas.1619011114] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
IL-1 family member interleukin 37 (IL-37) has broad antiinflammatory properties and functions as a natural suppressor of innate inflammation. In this study, we demonstrate that treatment with recombinant human IL-37 reverses the decrease in exercise performance observed during systemic inflammation. This effect was associated with a decrease in the levels of plasma and muscle cytokines, comparable in extent to that obtained upon IL-1 receptor blockade. Exogenous administration of IL-37 to healthy mice, not subjected to an inflammatory challenge, also improved exercise performance by 82% compared with vehicle-treated mice (P = 0.01). Treatment with eight daily doses of IL-37 resulted in a further 326% increase in endurance running time compared with the performance level of mice receiving vehicle (P = 0.001). These properties required the engagement of the IL-1 decoy receptor 8 (IL-1R8) and the activation of AMP-activated protein kinase (AMPK), because both inhibition of AMPK and IL-1R8 deficiency abrogated the positive effects of IL-37 on exercise performance. Mechanistically, treatment with IL-37 induced marked metabolic changes with higher levels of muscle AMPK, greater rates of oxygen consumption, and increased oxidative phosphorylation. Metabolomic analyses of plasma and muscles of mice treated with IL-37 revealed an increase in AMP/ATP ratio, reduced levels of proinflammatory mediator succinate and oxidative stress-related metabolites, as well as changes in amino acid and purine metabolism. These effects of IL-37 to limit the metabolic costs of chronic inflammation and to foster exercise tolerance provide a rationale for therapeutic use of IL-37 in the treatment of inflammation-mediated fatigue.
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168
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Yin D, Naji DH, Xia Y, Li S, Bai Y, Jiang G, Zhao Y, Wang X, Huang Y, Chen S, Fa J, Tan C, Zhou M, Zhou Y, Wang L, Liu Y, Chen F, Liu J, Chen Q, Tu X, Xu C, Wang QK. Genomic Variant in IL-37 Confers A Significant Risk of Coronary Artery Disease. Sci Rep 2017; 7:42175. [PMID: 28181534 PMCID: PMC5299598 DOI: 10.1038/srep42175] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 01/05/2017] [Indexed: 12/14/2022] Open
Abstract
The interleukin 1 family plays an important role in the immune and inflammatory responses. Coronary artery disease (CAD) is a chronic inflammatory disease. However, the genetic association between IL-37, the seventh member of the IL-1 family, and CAD is unknown. Here we show that a single nucleotide polymorphism in the IL-37 gene (rs3811047) confers a significant risk of CAD. We have performed an association analysis between rs3811047 and CAD in two independent populations with 2,501 patients and 3,116 controls from China. Quantitative RT-PCR analysis has been performed to determine if the IL-37 expression level is influenced by rs3811047. We show that the minor allele A of rs3811047 is significantly associated with CAD in two independent populations under a recessive model (Padj = 5.51 × 10-3/OR = 1.56 in the GeneID Northernern population and Padj = 1.23 × 10-3/OR = 1.45 in the GeneID Central population). The association became more significant in the combined population (Padj = 9.70 × 10-6/OR = 1.47). Moreover, the association remains significant in a CAD case control population matched for age and sex. Allele A of rs3811047 shows significant association with a decreased mRNA expression level of IL-37 (n = 168, P = 3.78 × 10-4). These data suggest that IL37 is a new susceptibility gene for CAD, which provides a potential target for the prevention and treatment of CAD.
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Affiliation(s)
- Dan Yin
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
- BGI-Wuhan, Wuhan 430075, China; BGI-Shenzhen, Shenzhen 518083, China
| | - Duraid Hamied Naji
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yunlong Xia
- Cardiovascualr Hospital, the First Affiliated Hospital of Dalian Medical University, Dalian, Wuhan, P. R. China
| | - Sisi Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Ying Bai
- Center of Prenatal Diagnosis, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Hunan, P. R. China
| | - Guiqing Jiang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yuanyuan Zhao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Xiaojing Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yufeng Huang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Shanshan Chen
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Jingjing Fa
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Chengcheng Tan
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Mengchen Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yingchao Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Longfei Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Ying Liu
- Cardiovascualr Hospital, the First Affiliated Hospital of Dalian Medical University, Dalian, Wuhan, P. R. China
| | - Feifei Chen
- Cardiovascualr Hospital, the First Affiliated Hospital of Dalian Medical University, Dalian, Wuhan, P. R. China
| | - Jingqiu Liu
- Cardiovascualr Hospital, the First Affiliated Hospital of Dalian Medical University, Dalian, Wuhan, P. R. China
| | - Qiuyun Chen
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Department of Genetics and Genome Science, Case Western Reserve University, Cleveland, OH, USA
| | - Xin Tu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Qing K. Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, P. R. China
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Molecular Medicine, Department of Genetics and Genome Science, Case Western Reserve University, Cleveland, OH, USA
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169
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Conti P, Ronconi G, Caraffa A, Lessiani G, Duraisamy K. IL-37 a New IL-1 Family Member Emerges as a Key Suppressor of Asthma Mediated by Mast Cells. Immunol Invest 2016; 46:239-250. [PMID: 27982737 DOI: 10.1080/08820139.2016.1250220] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
In 1986, we reported a multiple biological effect of IL-1 including immunological, inflammatory, and tumor killing activity. Since then other IL-1 family cytokines have been discovered, some with inflammatory and other with anti-inflammatory activity. In this review article, we speculate on the possible inhibitory effect of IL-37 in the light of new findings. IL-37, formerly termed IL-1 family member 7 (IL-1F7), binding IL-18 receptor α chain, acts as a cytokine with intracellular as well as extracellular functionality and as a natural inhibitor of immune responses and inflammation. IL-37 inhibits many pro-inflammatory cytokine and increases anti-inflammatory cytokines such as IL-10. Asthma pathogenesis involves multiple cell types including mast cells, which are important cellular constituents of the human innate and adaptive immunity. IL-37 has an impact on inflammatory cytokines generated by mast cells and is beneficial for and protective in asthma. However, the precise mechanism(s), safety, and tolerability of IL-37 are unclear and still remain a mystery. ABBREVIATIONS GBP (Guanylate Binding Proteins); HMGB1 (High Mobility Group Box protein 1); NLRP (Nucleotide-like Receptor Pyrin domain 1); ASC (Apoptosis-associated Speck-like protein containing CARD, Caspase Recruitment Domain); FGF2 (Fibroblast Growth Factor 2).
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Affiliation(s)
- P Conti
- a Immunology Division, Postgraduate Medical School, University of Chieti-Pescara , Chieti , Italy
| | - G Ronconi
- b UOS Clinica dei Pazienti del Territorio, Policlinico Gemelli , Roma , Italy
| | - A Caraffa
- c Department of Pharmacology , University of Perugia , Perugia , Italy
| | - G Lessiani
- d Center of Intensive Rehabilitation, "S. Agnese" , Pineto ( TE ), Italy
| | - Kempuraj Duraisamy
- e Department of Neurology , Carver College of Medicine, University of Iowa , Iowa City , IA , USA
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170
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Huo J, Hu J, Liu G, Cui Y, Ju Y. Elevated serum interleukin-37 level is a predictive biomarker of poor prognosis in epithelial ovarian cancer patients. Arch Gynecol Obstet 2016; 295:459-465. [PMID: 27975129 DOI: 10.1007/s00404-016-4258-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/25/2016] [Indexed: 12/16/2022]
Abstract
PURPOSE Interleukin-37 (IL-37) has been identified as a novel anti-inflammatory cytokine which is involved in tumor development. This study aimed to evaluate the expression of IL-37 in serum and determine its clinical significance in human epithelial ovarian cancer (EOC). METHODS Enzyme-linked immunosorbent assay (ELISA) was performed to examine the serum IL-37 levels in 76 patients with EOC and 76 healthy controls. The association of IL-37 levels with clinical factors and prognosis of EOC patients was analyzed. The diagnostic accuracy of serum IL-37 was performed by receiver operator characteristic (ROC) curve analysis. RESULTS Serum IL-37 levels in patients with EOC (187.3 ± 75.57 pg/ml) were significantly higher than those in healthy controls (84.89 ± 28.92 pg/ml, P < 0.001). High serum IL-37 levels were significantly associated with FIGO stage (P < 0.001), tumor size (P = 0.002), lymph node metastasis (P = 0.021), positive recurrence (P = 0.047) and residual tumor size (P < 0.001). The Kaplan-Meier survival analysis demonstrated that high serum IL-37 levels were significantly associated with poor overall survival and the progression-free survival (log-rank, P = 0.026, and P = 0.039, respectively). Univariate and multivariate analysis indicated that serum IL-37 levels (HR = 3.007, 95% CI 2.125-4.842, P = 0.008) were an independent prognostic factor for EOC patients. ROC curve analyses revealed an AUC (the areas under the ROC curve) of 0.881 (95% CI 0.829-0.945; P < 0.001). CONCLUSIONS High serum IL-37 levels are associated with an unfavorable prognosis of EOC patients. IL-37 may serve as a promising and useful prognostic biomarker for EOC.
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Affiliation(s)
- Junwei Huo
- Department of Gynaecology and Obstetrics, The First Hospital of Yulin, Yulin, Shaanxi, 718000, China
| | - Jing Hu
- Department of Gynaecology and Obstetrics, Xi'an Central Hospital, Xi'an, Shaanxi, 710003, China
| | - Gaowei Liu
- Department of Gynaecology and Obstetrics, The First Hospital of Yulin, Yulin, Shaanxi, 718000, China
| | - Yajie Cui
- Department of Gynaecology and Obstetrics, Xi'an No 1. Hospital, Xi'an, Shaanxi, 710003, China
| | - Ying Ju
- Department of Gynaecology and Obstetrics, Tangdu Hospital, The Fourth Military Medical University, No 1, Xinsi Road, Baqiao District, Xi'an, Shaanxi, 710038, China.
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171
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Wang DW, Dong N, Wu Y, Zhu XM, Wang CT, Yao YM. Interleukin-37 Enhances the Suppressive Activity of Naturally Occurring CD4 +CD25 + Regulatory T Cells. Sci Rep 2016; 6:38955. [PMID: 27941849 PMCID: PMC5150235 DOI: 10.1038/srep38955] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 11/15/2016] [Indexed: 11/30/2022] Open
Abstract
Naturally occurring CD4+CD25+ regulatory T cells (Tregs) are essential for the suppression of autoimmunity and can control the immune-mediated pathology during the early phase of sepsis. Our previous data showed that silencing interleukin-37 (IL-37) in human CD4+CD25+ Tregs obviously reduced the suppressive activity of CD4+CD25+ Tregs. Here, we found that rhIL-37 stimulation markedly enhanced the suppressive activity of CD4+CD25+ Tregs isolated from naive C57BL/6 J mice in the absence or presence of lipopolysaccharide (LPS). Treatment with rhIL-37 could significantly upregulate the expression of cytotoxic T-lymphocyte-associated antigen (CTLA)-4 and forkhead/winged helix transcription factor p3 (Foxp3) on CD4+CD25+ Tregs. Also, rhIL-37 stimulation promoted the production of transforming growth factor-β1 (TGF-β1) but not IL-10 in the supernatants of cultured CD4+CD25+ Tregs. Pretreated CD4+CD25+ Tregs with rhIL-37 in the presence or absence of LPS were cocultured with CD4+CD25− T cells, ratio of IL-4/interferon-γ in the supernatants obviously increased in IL-37-stimulated groups. In addition, early administration of IL-37 significantly improved the survival rate of septic mice induced by cecal ligation and puncture. Taken together, we concluded that rhIL-37 enhances the suppressive activity of CD4+CD25+ Tregs and might be a potential immunomodulator for the treatment of septic complications.
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Affiliation(s)
- Da-Wei Wang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250101, P. R.China.,Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, P. R.China
| | - Ning Dong
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, P. R.China
| | - Yao Wu
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, P. R.China
| | - Xiao-Mei Zhu
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, P. R.China
| | - Chun-Ting Wang
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250101, P. R.China
| | - Yong-Ming Yao
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, P. R.China.,State Key Laboratory of Kidney Disease, the Chinese PLA General Hospital, Beijing 100853, P. R.China
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172
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Zhu R, Sun H, Yu K, Zhong Y, Shi H, Wei Y, Su X, Xu W, Luo Q, Zhang F, Zhu Z, Meng K, Zhao X, Liu Y, Mao Y, Cheng P, Mao X, Zeng Q. Interleukin-37 and Dendritic Cells Treated With Interleukin-37 Plus Troponin I Ameliorate Cardiac Remodeling After Myocardial Infarction. J Am Heart Assoc 2016; 5:e004406. [PMID: 27919929 PMCID: PMC5210436 DOI: 10.1161/jaha.116.004406] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/08/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Excessive immune-mediated inflammatory reactions play a deleterious role in postinfarction ventricular remodeling. Interleukin-37 (IL-37) emerges as an inhibitor of both innate and adaptive immunity. However, the exact role of IL-37 and IL-37 plus troponin I (TnI)-treated dendritic cells (DCs) in ventricular remodeling after myocardial infarction (MI) remains elusive. METHODS AND RESULTS MI was induced by permanent ligation of the left anterior descending artery. Our results showed that treatment with recombinant human IL-37 significantly ameliorated ventricular remodeling after MI, as demonstrated by decreased infarct size, better cardiac function, lower mortality, restricted inflammatory responses, decreased myocardial fibrosis, and inhibited cardiomyocyte apoptosis. In vitro, we examined the phenotype of IL-37 plus TnI-conditioned DCs of male C57BL/6 mice and their capacity to influence the number of regulatory T cells. Our results revealed that IL-37 plus TnI-conditioned DCs obtained the characteristics of tolerogenic DCs (tDCs) and expanded the number of regulatory T cells when co-cultured with splenic CD4+ T cells. Interestingly, we also found that adoptive transfer of these antigen-loaded tDCs markedly increased the number of regulatory T cells in the spleen, attenuated the infiltration of inflammatory cells in the infarct hearts, decreased myocardial fibrosis, and improved cardiac function. CONCLUSIONS Our results reveal a beneficial role of IL-37 or tDCs treated with IL-37 plus TnI in post-MI remodeling that is possibly mediated by reestablishing a tolerogenic immune response, indicating that IL-37 or adoptive transfer of IL-37 plus TnI-treated tDCs may be a novel therapeutic strategy for ventricular remodeling after MI.
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Affiliation(s)
- Ruirui Zhu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haitao Sun
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kunwu Yu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yucheng Zhong
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huairui Shi
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuzhen Wei
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Su
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenbin Xu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Quan Luo
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fangyuan Zhang
- Department of Dermatology, Wuhan Union Hospital West Campus, Wuhan, China
| | - Zhengfeng Zhu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Meng
- Department of Cardiology, Wuhan Union Hospital West Campus, Wuhan, China
| | - Xiaoqi Zhao
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuzhou Liu
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Mao
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Cheng
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaobo Mao
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiutang Zeng
- Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Davis CJ, Zielinski MR, Dunbrasky D, Taishi P, Dinarello CA, Krueger JM. Interleukin 37 expression in mice alters sleep responses to inflammatory agents and influenza virus infection. Neurobiol Sleep Circadian Rhythms 2016; 3:1-9. [PMID: 28070566 PMCID: PMC5218600 DOI: 10.1016/j.nbscr.2016.11.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Multiple interactions between the immune system and sleep are known, including the effects of microbial challenge on sleep or the effects of sleep loss on facets of the immune response. Cytokines regulate, in part, sleep and immune responses. Here we examine the role of an anti-inflammatory cytokine, interleukin-37 (IL-37) on sleep in a mouse strain that expresses human IL-37b (IL37tg mice). Constitutive expression of the IL-37 gene in the brains of these mice under resting conditions is low; however, upon an inflammatory stimulus, expression increases dramatically. We measured sleep in three conditions; (a) under baseline conditions and after 6 h of sleep loss, (b) after bolus intraperitoneal administration of lipopolysaccharide (LPS) or IL-1β and (c) after intranasal influenza virus challenge. Under baseline conditions, the IL37tg mice had 7% more spontaneous non-rapid eye movement sleep (NREMS) during the light period than wild-type (WT) mice. After sleep deprivation both WT mice and IL37tg mice slept an extra 21% and 12%, respectively, during the first 6 h of recovery. NREMS responses after sleep deprivation did not significantly differ between WT mice and IL37tg mice. However, in response to either IL-1β or LPS, the increases in time spent in NREMS were about four-fold greater in the WT mice than in the IL37tg mice. In contrast, in response to a low dose of mouse-adapted H1N1 influenza virus, sleep responses developed slowly over the 6 day recording period. By day 6, NREMS increased by 10% and REMS increased by 18% in the IL37tg mice compared to the WT mice. Further, by day 4 IL37tg mice lost less weight, remained more active, and retained their body temperatures closer to baseline values than WT mice. We conclude that conditions that promote IL-37 expression attenuate morbidity to severe inflammatory challenge. Sleep responses to mild acute sleep deprivation are similar in mice transgenic for interleukin-37 (IL37tg) IL37tg and wild type (WT) mice. Sleep responses induced by either IL-β or LPS are greatly attenuated in IL37tg mice compared to WT mice. After influenza virus challenge, IL37tg mice have reduced morbidities and enhanced sleep responses.
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Affiliation(s)
- Christopher J Davis
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, USA 99210-1495
| | - Mark R Zielinski
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, USA 99210-1495; VA Boston Healthcare System, Harvard Medical School, West Roxbury, MA, USA 02312; Department of Psychiatry, Harvard Medical School, West Roxbury, MA, USA 02312
| | - Danielle Dunbrasky
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, USA 99210-1495
| | - Ping Taishi
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, USA 99210-1495
| | - Charles A Dinarello
- Department of Medicine, University of Colorado Denver, Aurora, CO, USA 80045; Radboud University Medical Center, Nijmegen, The Netherlands
| | - James M Krueger
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, USA 99210-1495
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174
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Liu L, Xue Y, Zhu Y, Xuan D, Yang X, Liang M, Wang J, Zhu X, Zhang J, Zou H. Interleukin 37 limits monosodium urate crystal-induced innate immune responses in human and murine models of gout. Arthritis Res Ther 2016; 18:268. [PMID: 27863506 PMCID: PMC5116141 DOI: 10.1186/s13075-016-1167-y] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 10/27/2016] [Indexed: 12/22/2022] Open
Abstract
Background Interleukin (IL)-37 has emerged as a fundamental inhibitor of innate immunity. Acute gout is a self-limiting inflammatory response to monosodium urate (MSU) crystals. In the current study, we assessed the preventive and therapeutic effect of recombinant human IL-37 (rhIL-37) in human and murine gout models. Methods We investigated the expression of IL-37 in patients with active and inactive gouty arthritis and assessed the effect of rhIL-37 in human and murine gout models: a human monocyte cell line (THP-1) and human synovial cells (containing macrophage-like and fibroblast-like synoviocytes) exposed to MSU crystals, a peritoneal murine model of gout and a murine gouty arthritis model. After inhibition of Mer receptor tyrosine kinase (Mertk), levels of IL-1β, IL-8 and chemokine (C-C motif) ligand 2 (CCL-2) were detected by ELISA and expression of mammalian homologs of the drosophila Mad gene 3 (Smad), suppressor of cytokine signaling 3 (SOCS3), NACHT-LRR-PYD-containing protein 3 (NLRP3), and IL-8R of THP-1 were assessed by qPCR and western blot to explore the molecular mechanisms. Results Our studies strongly indicated that rhIL-37 played a potent immunosuppressive role in the pathogenesis of experimental gout models both in vitro and in vivo, by downregulating proinflammatory cytokines and chemokines, markedly reducing neutrophil and monocyte recruitment, and mitigating pathological joint inflammation. In our studies, rhIL-37 suppressed MSU-induced innate immune responses by enhancing expression of Smad3 and IL-1R8 to trigger multiple intracellular switches to block inflammation, including inhibition of NLRP3 and activation of SOCS3. Mertk signaling participated in rhIL-37 inhibitory pathways in gout models. By inhibition of Mertk, the anti-inflammatory effect of rhIL-37 was partly abrogated, and IL-1R8, Smad3 and SOCS3 expression were suppressed, whereas NLRP3 expression was reactivated. Conclusions Our studies reveal that IL-37 limits runaway inflammation initiated by MSU crystal-induced immune responses, partly in a Mertk-dependent fashion. Thus, rhIL-37 has both preventive and therapeutic effects in gouty arthritis.
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Affiliation(s)
- Lei Liu
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China
| | - Yu Xue
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China
| | - Yingfeng Zhu
- Department of Pathology, North Huashan Hospital, Fudan University, 108# Luqiang Road, Baoshan District, Shanghai, China
| | - Dandan Xuan
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China
| | - Xue Yang
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China
| | - Minrui Liang
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China
| | - Juan Wang
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China
| | - Xiaoxia Zhu
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China
| | - Jiong Zhang
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China. .,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.
| | - Hejian Zou
- Department of Rheumatology, Huashan Hospital, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China. .,Institute of Rheumatology, Immunology and Allergy, Fudan University, 12# Wulumuqi Road, Jingan District, Shanghai, China.
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175
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Mora J, Weigert A. IL-1 family cytokines in cancer immunity – a matter of life and death. Biol Chem 2016; 397:1125-1134. [DOI: 10.1515/hsz-2016-0215] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 07/06/2016] [Indexed: 12/29/2022]
Abstract
Abstract
IL-1 cytokines constitute a family of biologically active proteins with pleiotropic function especially in immunity. Both protective as well as deleterious properties of individual IL-1 family cytokines in tumor biology have been described. The function of IL-1-family cytokines depends on the producing source, the present (inflammatory) microenvironment and N-terminal proteolytical processing. Each of these determinants is shaped by different modes of cell death. Here we summarize the properties of IL-1 family cytokines in tumor biology, and how they are modulated by cell death.
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176
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Ding VA, Zhu Z, Mantz AA, Xiao H, Wakefield MR, Bai Q, Fang Y. The Role of IL-37 in Non-Cancerous Diseases. Pathol Oncol Res 2016; 23:463-470. [DOI: 10.1007/s12253-016-0137-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 10/12/2016] [Indexed: 11/24/2022]
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177
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Increased IL-37 concentrations in patients with arterial calcification. Clin Chim Acta 2016; 461:19-24. [DOI: 10.1016/j.cca.2016.07.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/14/2016] [Accepted: 07/18/2016] [Indexed: 12/11/2022]
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178
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Yan J, Zhang Y, Cheng S, Kang B, Peng J, Zhang X, Yuan M, Chu W, Zhang W, Shen J, Zhang S. Common genetic heterogeneity of human interleukin-37 leads to functional variance. Cell Mol Immunol 2016; 14:783-791. [PMID: 27665946 DOI: 10.1038/cmi.2016.48] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 12/15/2022] Open
Abstract
Interleukin-37 (IL-37) is an inhibitory member of the IL-1 family of cytokines. We previously found that balanced selection maintains common variations of the human IL37 gene. However, the functional consequences of this selection have yet to be validated. Here, using cells expressing exogenous IL-37 variants, including IL-37 Ref and IL-37 Var1 and Var2, we found that the three variants of IL-37 exhibited different immunoregulatory potencies in response to immune stimulation. The protein level of IL-37 Var2 was found to be significantly less than that of IL-37 Ref or Var1, despite the comparable mRNA levels of all three variants. Further study showed that IL-37 Var2 was rapidly degraded by a proteasome-dependent mechanism mediated by enhanced polyubiquitination, leading to a transient upregulation of IL-37 Var2 after immune stimulation. Finally, when ectopically expressed in cells, human IL-37 Var2 exerted less inhibition on proinflammatory cytokine production than did other IL-37 variants. Conversely, purified extracellular IL-37 variant proteins demonstrated comparable inhibitory abilities in vitro. In conclusion, our study reveals that common genetic variants of IL37 lead to different immune-inhibitory potencies, primarily as a result of differences in IL-37 protein stability, suggesting the possible involvement of these variants in various human diseases.
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Affiliation(s)
- Jingjing Yan
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yuling Zhang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,School of Life Sciences, Hebei Normal University, Shi-Jiazhuang, Hebei
| | - Shimeng Cheng
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Bin Kang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jinbiao Peng
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xiaodan Zhang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Meichun Yuan
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Wenqi Chu
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Wen Zhang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jiayin Shen
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Shuye Zhang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology of Ministries of Education/Health, Institute of Medical Microbiology, Shanghai Medical College of Fudan University, Shanghai, China
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179
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Cavalli G, Koenders M, Kalabokis V, Kim J, Tan AC, Garlanda C, Mantovani A, Dagna L, Joosten LAB, Dinarello CA. Treating experimental arthritis with the innate immune inhibitor interleukin-37 reduces joint and systemic inflammation. Rheumatology (Oxford) 2016; 55:2220-2229. [PMID: 27567100 DOI: 10.1093/rheumatology/kew325] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 07/29/2016] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The IL-1 family member IL-37 was recently characterized as a fundamental inhibitor of innate inflammation. We investigated the effects of recombinant IL-37 in joint inflammation and joint pathology in a mouse model of arthritis. In addition, we explored the potential for therapeutic use in human joint inflammation. METHODS Wild-type mice were treated systemically with a recombinant form of the naturally occurring human IL-37, and then the knee joints were injected with streptococcal cell wall fragments; joint inflammation, synovial cytokine concentrations and histology were evaluated after 24 h. Mice deficient in the IL-1 family decoy receptor IL-1R8 were treated in a similar manner. The effects of IL-37 treatment were also assessed in a model of streptococcal cell wall-induced systemic inflammation. Changes in IL37 and IL1R8 gene expression were evaluated in the synovia of patients with rheumatoid arthritis. RESULTS In wild-type mice, low doses (40 µg/kg) of IL-37 suppressed joint inflammation by 51.7% (P < 0.001) and significantly decreased synovial IL-1β by 84%, IL-6 by 73%, TNF-α by 33%, chemokine (C-X-C motif) ligand 1 by 58%, Chemokine (C-C motif) ligand 3 or macrophage inflammatory protein 1-alpha by 64%, IL-1α by 40% and MPO by 60%. These reductions were associated with a lower recruitment of neutrophils into the joint. The anti-inflammatory properties of IL-37 were dependent on the presence of IL-1R8, also in streptococcal cell wall-induced peritonitis. We found that gene expression of IL1R8, but not IL37, is markedly increased in the synovia of patients with rheumatoid arthritis. CONCLUSION IL-37 emerges as a key suppressor of joint and systemic inflammation. These findings indicate a rationale for using recombinant IL-37 in the treatment of arthritis.
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Affiliation(s)
- Giulio Cavalli
- Department of Medicine, University of Colorado Denver, Aurora, CO, USA .,Internal Medicine and Clinical Immunology, Vita-Salute San Raffaele University, Milan, Italy.,Department of Internal Medicine
| | - Marije Koenders
- Department of Rheumatology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | | | - Jihye Kim
- Translational Bioinformatics, Division of Medical Oncology, University of Colorado Denver, Aurora, CO, USA
| | - Aik Choon Tan
- Translational Bioinformatics, Division of Medical Oncology, University of Colorado Denver, Aurora, CO, USA
| | - Cecilia Garlanda
- Research Institute Humanitas, Experimental Immunopathology Lab, Rozzano, Italy
| | - Alberto Mantovani
- Research Institute Humanitas, Experimental Immunopathology Lab, Rozzano, Italy
| | - Lorenzo Dagna
- Internal Medicine and Clinical Immunology, Vita-Salute San Raffaele University, Milan, Italy
| | | | - Charles A Dinarello
- Department of Medicine, University of Colorado Denver, Aurora, CO, USA.,Department of Internal Medicine
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Borthwick LA. The IL-1 cytokine family and its role in inflammation and fibrosis in the lung. Semin Immunopathol 2016; 38:517-34. [PMID: 27001429 PMCID: PMC4896974 DOI: 10.1007/s00281-016-0559-z] [Citation(s) in RCA: 214] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/25/2016] [Indexed: 12/24/2022]
Abstract
The IL-1 cytokine family comprises 11 members (7 ligands with agonist activity, 3 receptor antagonists and 1 anti-inflammatory cytokine) and is recognised as a key mediator of inflammation and fibrosis in multiple tissues including the lung. IL-1 targeted therapies have been successfully employed to treat a range of inflammatory conditions such as rheumatoid arthritis and gouty arthritis. This review will introduce the members of the IL-1 cytokine family, briefly discuss the cellular origins and cellular targets and provide an overview of the role of these molecules in inflammation and fibrosis in the lung.
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Affiliation(s)
- L A Borthwick
- Fibrosis Research Group, Institute of Cellular Medicine, Newcastle University, 4th Floor, William Leech Building, Newcastle upon Tyne, NE2 4HH, UK.
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181
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Lin L, Wang J, Liu D, Liu S, Xu H, Ji N, Zhou M, Zeng X, Zhang D, Li J, Chen Q. Interleukin-37 expression and its potential role in oral leukoplakia and oral squamous cell carcinoma. Sci Rep 2016; 6:26757. [PMID: 27225603 PMCID: PMC4880905 DOI: 10.1038/srep26757] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 04/28/2016] [Indexed: 02/05/2023] Open
Abstract
Interleukin 37 (IL-37) has been reported to play a significant role in innate immune response and to be involved in several kinds of cancers. However, the investigation of association between IL-37 and oral mucosa carcinogenesis hasn't been clearly established. The aim of the study was to assess IL-37 expression and explore its role in oral mucosa carcinogenesis. The expression of IL-37 increased from normal control (NC) to Oral leukoplakia (OLK) and oral squamous cell carcinoma (OSCC). Moreover, statistically highly significant difference was present between scores of OLK with and without mild/moderate dysplasia (P < 0.001). In addition, IL-37 expression was lower in OSCC with lymph node metastasis than those without metastasis (P < 0.01). What's more, overexpression of IL-37 in RAW264.7 cells remarkably reduced the pseudopodia, vacuolization and the expression of IL-6, TNF-α, and IL-1β. Finally, we found IL-37 and its receptor IL-18Rα but not its binding partner IL-18BP have similar tissue location and expression trend in different stages of oral mucosa carcinogenesis. Overall, IL-37 can be used as a biomarker for early oral tumorigenesis and for malignant transformation risk assessment of premalignant lesions.
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Affiliation(s)
- Lin Lin
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Jiayi Wang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Dongjuan Liu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Sai Liu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Hao Xu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ning Ji
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Min Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xin Zeng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Dunfang Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jing Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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182
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IL-37 inhibits lipopolysaccharide-induced osteoclast formation and bone resorption in vivo. Immunol Lett 2016; 175:8-15. [PMID: 27154248 DOI: 10.1016/j.imlet.2016.04.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 04/01/2016] [Accepted: 04/05/2016] [Indexed: 12/14/2022]
Abstract
IL-37 is a newly defined member of the IL-1 cytokine family. It has been reported that IL-37 inhibited innate immunity and inflammatory responses in autoimmune diseases and tumors. IL-37 also inhibited Lipopolysaccharide (LPS)-induced immunological reaction. LPS is a bacterial cell wall component that is capable of inducing osteoclast formation and pathological bone resorption. However, there is no study to investigate the effect of IL-37 on LPS-induced osteoclast formation and bone resorption. The purpose of this study is to investigate the effect of IL-37 in LPS-induced osteoclast formation and bone resorption. LPS was administrated with or without IL-37 by subcutaneous injection on mice calvariae. The number of osteoclasts, the level of tartrate-resistant acid phosphatase (TRAP) and cathepsin K mRNA, the ratio of the bone resorption pits and the level of C-terminal telopeptide fragments of type I collagen cross-Links as a marker of bone resorption in mice administrated both LPS and IL-37 were lower than that in mice administrated LPS alone. Real-time RT-PCR was performed to analyze osteoclast related cytokines RANKL, TNF-α and IL-1β mRNA levels in vivo. RANKL, TNF-α and IL-1β mRNAs were increased in the LPS alone administrated mice as compared with PBS administrated groups. On the other hand, RANKL, TNF-α and IL-1β mRNAs were inhibited in the IL-37 and LPS administrated mice as compared with LPS alone administrated group. In vitro analysis, there was no effect of IL-37 in RANKL-induced osteoclast formation, TNF-α-induced osteoclast formation and cell viability from bone marrow macrophages as osteoclast precursor and LPS-induced RANKL expression from stromal cells. These results indicated that IL-37 inhibited LPS-induced osteoclast formation and bone resorption via inhibition of LPS-induced osteoclast related cytokines, but might not directly inhibit osteoclast formation on osteoclast precursor and RANKL expression on stromal cells.
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183
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Yang L, Zhang J, Tao J, Lu T. Elevated serum levels of Interleukin-37 are associated with inflammatory cytokines and disease activity in rheumatoid arthritis. APMIS 2016; 123:1025-31. [PMID: 26547368 DOI: 10.1111/apm.12467] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 09/23/2015] [Indexed: 12/18/2022]
Abstract
Interleukin-37 (IL-37) is closely associated with several inflammatory diseases. However, the role of IL-37 in the pathogenesis of rheumatoid arthritis (RA) remains unclear. The aim of this study was to assess the associations between serum levels of IL-37 and disease activity, inflammatory cytokines, and bone loss in patients with RA. Serum cytokines levels were examined by Enzyme-linked immunosorbent assay (ELISA). Radiographic bone erosion was assessed using the van der Heijde-modified Sharp score and bone mineral density (BMD) was measured using DXA. Serum IL-37 levels in RA patients were significantly higher than those in HCs (p < 0.001), and were significantly positively correlated with clinical parameters of disease activity and serum levels of IL-17 and IL-23. In addition, serum IL-37 levels were significantly higher in patients with stage IV of radiographic bone erosion than those with stage III and stage I-II, and they were significantly higher in those with osteopenia and osteoporosis than in those with normal BMD. Our results suggest that serum IL-37 levels were increased in patients with RA and were positively associated with disease activity, IL-17/IL-23 and bone loss in RA, suggesting that IL-37 may play a critical role in the pathogenesis of RA.
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Affiliation(s)
- Libin Yang
- Department of Orthopeadic Surgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Jun Zhang
- Department of Orthopeadic Surgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Jingang Tao
- Department of Orthopeadic Surgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Tan Lu
- Department of Orthopeadic Surgery, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
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Samarani S, Allam O, Sagala P, Aldabah Z, Jenabian MA, Mehraj V, Tremblay C, Routy JP, Amre D, Ahmad A. Imbalanced production of IL-18 and its antagonist in human diseases, and its implications for HIV-1 infection. Cytokine 2016; 82:38-51. [PMID: 26898120 DOI: 10.1016/j.cyto.2016.01.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/12/2016] [Accepted: 01/15/2016] [Indexed: 12/16/2022]
Abstract
IL-18 is a pleiotropic and multifunctional cytokine that belongs to the IL-1 family. It is produced as a biologically inactive precursor, which is cleaved into its active mature form mainly by caspase-1. The caspase becomes active from its inactive precursor (procaspase-1) upon assembly of an inflammasome. Because of IL-18's potential pro-inflammatory and tissue destructive effects, its biological activities are tightly controlled in the body by its naturally occurring antagonist called IL-18BP. The antagonist is produced in the body both constitutively and in response to an increased production of IL-18 as a negative feedback mechanism. Under physiological conditions, most of IL-18 in the circulation is bound with IL-18BP and is inactive. However, an imbalance in the production of IL-18 and its antagonist (an increase in the production of IL-18 with a decrease, no increase or an insufficient increase in the production of IL-18BP) has been described in many chronic inflammatory diseases in humans. The imbalance results in an increase in the concentrations of free IL-18 (unbound with its antagonist) resulting in increased biological activities of the cytokine that contribute towards pathogenesis of the disease. In this article, we provide an overview of the current biology of IL-18 and its antagonist, discuss how the imbalance occurs in HIV infections and how it contributes towards development of AIDS and other non-AIDS-associated clinical conditions occurring in HIV-infected individuals undergoing combination anti-retroviral therapy (cART). Finally, we discuss challenges facing immunotherapeutic strategies aimed at restoring balance between IL-18 and its antagonist in these patients.
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Affiliation(s)
- Suzanne Samarani
- Laboratory of Innate Immunity, Canada; CHU-Sainte-Justine Research Center, Canada; Department of Microbiology, Infectiology & Immunology, Canada; University of Montreal, Montreal, Canada
| | - Ossama Allam
- Laboratory of Innate Immunity, Canada; CHU-Sainte-Justine Research Center, Canada; Department of Microbiology, Infectiology & Immunology, Canada; University of Montreal, Montreal, Canada
| | - Patrick Sagala
- Laboratory of Innate Immunity, Canada; CHU-Sainte-Justine Research Center, Canada; Department of Microbiology, Infectiology & Immunology, Canada; University of Montreal, Montreal, Canada
| | - Zainab Aldabah
- Laboratory of Innate Immunity, Canada; CHU-Sainte-Justine Research Center, Canada; Department of Microbiology, Infectiology & Immunology, Canada; University of Montreal, Montreal, Canada
| | | | - Vikram Mehraj
- McGill University Health Center, McGill University, Montreal, Canada
| | - Cécile Tremblay
- Department of Microbiology, Infectiology & Immunology, Canada; Division of Infectious Diseases, CHUM, Canada; University of Montreal, Montreal, Canada
| | - Jean-Pierre Routy
- McGill University Health Center, McGill University, Montreal, Canada
| | - Devendra Amre
- CHU-Sainte-Justine Research Center, Canada; Department of Pediatrics, Canada; University of Montreal, Montreal, Canada
| | - Ali Ahmad
- Laboratory of Innate Immunity, Canada; CHU-Sainte-Justine Research Center, Canada; Department of Microbiology, Infectiology & Immunology, Canada; University of Montreal, Montreal, Canada.
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185
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Interleukin-37 suppresses tumor growth through inhibition of angiogenesis in non-small cell lung cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:13. [PMID: 26791086 PMCID: PMC4721009 DOI: 10.1186/s13046-016-0293-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 01/13/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Interleukin-37 (IL-37), a newly identified member of the IL-1 family, has been known to play an immunosuppressive role in a variety of inflammatory disorders, but whether it participates in the regulation of pathogenesis of non-small cell lung cancer (NSCLC) has not been investigated. METHODS Real-time polymerase chain reaction (PCR), western blotting, and immunohistochemical staining were employed to detect IL-37 expression in NSCLC tissues and corresponding adjacent tissues. The correlations between IL-37 expression and clinicopathological characteristics, prognosis were analyzed. Stable clone with overexpression of IL-37 was generated in H1299 cell lines. Cell growth, cell cycle and cell apoptosis assays were carried out for detecting proliferation and apoptosis of H1299 cells. The effects of IL-37 on NSCLC progression in vivo was performed in a xenografted lung tumor model in nude mice. The concentrations of IL-37 and VEGF in the s growth medium supernatants were quantified by ELISA. The antiangiogenic effect of IL-37 on HUVEC was measured by tube formation assay. RESULTS IL-37 mRNA and protein expressions were significantly decreased in NSCLC tissues, and decreased intratumoral IL-37 expression was significantly associated with tumor state, TNM stage and poor prognosis in NSCLC patients. In addition, intratumoral IL-37 expression was an independent prognostic factors for Overall survival (hazard ratio = 2.047; P = 0.011). Overexpression of IL-37 exerted no direct effect on cell proliferation and apoptosis of H1299 lung cancer cells in vitro, but significantly inhibited tumor growth in a H1299 xenograft model in vivo. Furthermore, there was no significant change in immune cell infiltration in IL-37 over-expressing tumors; instead, we found decreased microvessel density (MVD) and VEGF levels in IL-37-expressing tumors. Additional studies showed IL-37 could directly inhibit HUVEC cells growth and capillary structure formation. Finally, we found that decreased IL-37 expression was associated with high MVD in NSCLC patients. CONCLUSIONS Our findings demonstrate a protective role for IL-37 in lung cancer development, possibly through inhibiting tumor angiogenesis. IL-37 could serve as a promising therapeutic target for NSCLC.
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186
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Abstract
IL-37, a member of the IL-1 family, broadly reduces innate inflammation as well as acquired immunity. Whether the antiinflammatory properties of IL-37 extend to the central nervous system remains unknown, however. In the present study, we subjected mice transgenic for human IL-37 (hIL-37tg) and wild-type (WT) mice to spinal cord contusion injury and then treated them with recombinant human IL-37 (rIL-37). In the hIL-37tg mice, the expression of IL-37 was barely detectable in the uninjured cords, but was strongly induced at 24 h and 72 h after the spinal cord injury (SCI). Compared with WT mice, hIL-37tg mice exhibited increased myelin and neuronal sparing and protection against locomotor deficits, including 2.5-fold greater speed in a forced treadmill challenge. Reduced levels of cytokines (e.g., an 80% reduction in IL-6) were observed in the injured cords of hIL-37tg mice, along with lower numbers of blood-borne neutrophils, macrophages, and activated microglia. We treated WT mice with a single intraspinal injection of either full-length or processed rIL-37 after the injury and found that the IL-37-treated mice had significantly enhanced locomotor skills in an open field using the Basso Mouse Scale, as well as supported faster speed on a mechanical treadmill. Treatment with both forms of rIL-37 led to similar beneficial effects on locomotor recovery after SCI. This study presents novel data indicating that IL-37 suppresses inflammation in a clinically relevant model of SCI, and suggests that rIL-37 may have therapeutic potential for the treatment of acute SCI.
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187
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Medina-Contreras O, Harusato A, Nishio H, Flannigan KL, Ngo V, Leoni G, Neumann PA, Geem D, Lili LN, Ramadas RA, Chassaing B, Gewirtz AT, Kohlmeier JE, Parkos CA, Towne JE, Nusrat A, Denning TL. Cutting Edge: IL-36 Receptor Promotes Resolution of Intestinal Damage. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2016; 196:34-8. [PMID: 26590314 PMCID: PMC4684965 DOI: 10.4049/jimmunol.1501312] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 10/27/2015] [Indexed: 02/02/2023]
Abstract
IL-1 family members are central mediators of host defense. In this article, we show that the novel IL-1 family member IL-36γ was expressed during experimental colitis and human inflammatory bowel disease. Germ-free mice failed to induce IL-36γ in response to dextran sodium sulfate (DSS)-induced damage, suggesting that gut microbiota are involved in its induction. Surprisingly, IL-36R-deficient (Il1rl2(-/-)) mice exhibited defective recovery following DSS-induced damage and impaired closure of colonic mucosal biopsy wounds, which coincided with impaired neutrophil accumulation in the wound bed. Failure of Il1rl2(-/-) mice to recover from DSS-induced damage was associated with a profound reduction in IL-22 expression, particularly by colonic neutrophils. Defective recovery of Il1rl2(-/-) mice could be rescued by an aryl hydrocarbon receptor agonist, which was sufficient to restore IL-22 expression and promote full recovery from DSS-induced damage. These findings implicate the IL-36/IL-36R axis in the resolution of intestinal mucosal wounds.
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Affiliation(s)
| | - Akihito Harusato
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303
| | - Hikaru Nishio
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322
| | - Kyle L Flannigan
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303
| | - Vu Ngo
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303
| | - Giovanna Leoni
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322
| | | | - Duke Geem
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303; Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322
| | - Loukia N Lili
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322
| | | | - Benoit Chassaing
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303
| | - Andrew T Gewirtz
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303
| | - Jacob E Kohlmeier
- Department of Microbiology and Immunology, Emory University, Atlanta, GA 30322
| | - Charles A Parkos
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322; Department of Pathology, University of Michigan, Ann Arbor, MI 48109; and
| | | | - Asma Nusrat
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322; Department of Pathology, University of Michigan, Ann Arbor, MI 48109; and
| | - Timothy L Denning
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303;
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188
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Xia L, Shen H, Lu J. Elevated serum and synovial fluid levels of interleukin-37 in patients with rheumatoid arthritis: Attenuated the production of inflammatory cytokines. Cytokine 2015; 76:553-557. [DOI: 10.1016/j.cyto.2015.06.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 06/04/2015] [Accepted: 06/05/2015] [Indexed: 12/29/2022]
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189
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Increased serum level of IL-37 in patients with multiple sclerosis and neuromyelitis optica. Acta Neurol Belg 2015; 115:609-14. [PMID: 26008726 DOI: 10.1007/s13760-015-0491-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 05/18/2015] [Indexed: 12/22/2022]
Abstract
Multiple sclerosis (MS) is a common autoimmune disease of central nervous system in which neurodegenerative and inflammatory mechanisms cause alternate neurological impairments. Many inflammatory and anti-inflammatory cytokines were suggested as contributor in MS pathogenesis, and the balance between these opposing cytokines can regulate MS severity. IL-37, an anti-inflammatory cytokine, is the most recently identified member of IL-1 family, which acts as a natural inhibitor of innate immunity. However, the role of IL-37 in MS has not investigated so far. Therefore, in this study, we aimed to measure serum level of IL-37 in patients with relapsing remitting multiple sclerosis (RRMS) and neuromyelitis optica (NMO). In a case-control study, plasma was collected from healthy controls (n = 49) and also patients with RRMS (n = 122) and NMO (n = 31). Serum level measurement of IL-37 was performed using enzyme-linked immunoassay (ELISA) method. The serum levels of IL-37 were 247.46 ± 74.02 and 312.00 ± 86.72 and 114.63 ± 20.58 in RRMS and NMO patients and healthy controls, respectively, showing statistically significant difference between them (P = 0.00). Furthermore, we found a positive correlation between the serum levels of IL-37 and EDSS of patients (r = +0.31 and P = 0.00). In summary, the serum level of IL-37 was found to be significantly increased in MS patients compared to healthy controls. Furthermore, the mean serum level of IL-37 was correlated with disease severity. This suggests that IL-37 may be part of a feed-back loop to control underlying inflammation in MS pathogenesis. However, further studies will be required to indicate exact role of IL-37 in the MS pathomechanisms.
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190
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Yan N, Meng S, Song RH, Qin Q, Wang X, Yao Q, Jiang Y, Jiang W, Shi L, Xu J, Zhang J. Polymorphism of IL37 gene as a protective factor for autoimmune thyroid disease. J Mol Endocrinol 2015; 55:209-218. [PMID: 26373794 DOI: 10.1530/jme-15-0144] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/11/2015] [Indexed: 01/01/2023]
Abstract
Autoimmune thyroid disease (AITD) comprises Graves' disease (GD) and Hashimoto's thyroiditis (HT). IL37 has been recently proved to be a natural suppressor for innate immunity and acquired immunity. Therefore, this study was conducted to identify the association of IL37 genetic polymorphisms with AITD in Chinese Han population. Polymorphisms of rs3811046/rs3811047/rs2723176/rs272186 in the IL37 gene were assessed in a case-control study comprising 701 GD patients, 301 HT patients and 939 controls. Genetic variants were genotyped by multiplex polymerase chain reaction and ligase detection reaction. The frequencies of the minor allele A of rs2723176 and A of rs2723186 were significantly lower in the GD patients than in the controls (P=0.014, OR=0.774; P=0.014, OR=0.777). After gender stratification, the rs3811046 G allele and the rs3811047/rs2723186 A allele were both significantly associated with a decreased risk of GD in female patients (P=0.030, OR=0.777; P=0.023, OR=0.774; P=0.029, OR=0.761). However, none of the four single nucleotide polymorphisms of IL37 gene showed any significant association with HT. Moreover, haplotype analysis revealed the GCG haplotype conferred increased risk for GD as a whole and in female GD patients (OR=1.213; OR=1.320). The ACG haplotype was associated with an increased risk of HT as a whole (OR=1.567) and in male GD patients (OR=1.820). In contrast, the AAA haplotype showed a protective role for GD as a whole (OR=0.760) and in female GD patients (OR=0.765). Our study strongly supports that the IL37 gene variants are associated with the susceptibility to AITD.
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Affiliation(s)
- Ni Yan
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Shuai Meng
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Rong-Hua Song
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Qiu Qin
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Xuan Wang
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Qiuming Yao
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Yanfei Jiang
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Wenjuan Jiang
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Liangfeng Shi
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Jian Xu
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
| | - Jinan Zhang
- Department of EndocrinologyJinshan Hospital of Fudan University, Number 1508 Longhang Road, Jinshan District, Shanghai 201508, China
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Xu WD, Zhao Y, Liu Y. Insights into IL-37, the role in autoimmune diseases. Autoimmun Rev 2015; 14:1170-5. [DOI: 10.1016/j.autrev.2015.08.006] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 08/07/2015] [Indexed: 01/10/2023]
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Systemic Cytokine Profiles in Strongyloides stercoralis Infection and Alterations following Treatment. Infect Immun 2015; 84:425-31. [PMID: 26597982 DOI: 10.1128/iai.01354-15] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 11/12/2015] [Indexed: 01/15/2023] Open
Abstract
Strongyloides stercoralis is a soil-transmitted helminth organism that infects ~50 to 100 million people worldwide. Despite its widespread prevalence, very little is known about the immune response that characterizes human S. stercoralis infection. To study the systemic cytokine profile characteristic of Strongyloides infection, we measured the circulating levels of a large panel of pro- and anti-inflammatory cytokines in asymptomatic, infected individuals (n = 32) and compared them to those in uninfected, controls (n = 24). Infected individuals exhibited significantly lower circulating levels of proinflammatory cytokines (gamma interferon [IFN-γ], tumor necrosis factor alpha [TNF-α], and interleukin-1β [IL-1β]) and significantly higher levels of anti-inflammatory cytokines (IL-4, IL-5, IL-9, IL-10, IL-13, IL-27, IL-37, and transforming growth factor β [TGF-β]). Moreover, treatment of Strongyloides infection resulted in a significant reversal of the cytokine profile, with increased levels of proinflammatory (IFN-γ, TNF-α, IL-2, IL-17A, IL-17F, IL-22, IL-23, and IL-1β) and decreased levels of anti-inflammatory (IL-4, IL-5, IL-9, IL-10, IL-13, IL-27, IL-37, and TGF-β) cytokines following treatment. Thus, S. stercoralis infection is characterized by alterations in the levels of systemic cytokines, reflecting major alterations in the underlying immune response to this chronic helminth infection.
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Lunding L, Schröder A, Wegmann M. Allergic airway inflammation: unravelling the relationship between IL-37, IL-18Rα and Tir8/SIGIRR. Expert Rev Respir Med 2015; 9:739-50. [PMID: 26561030 DOI: 10.1586/17476348.2015.1109452] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The hallmarks of allergic bronchial asthma arise from chronic airway inflammation. Thus, elucidating the mechanisms regulating the maintenance of this chronic inflammatory response is key to understanding asthma pathogenesis. To date, it is not clear whether a predominance of proinflammatory factors or a reduced capacity of counterbalancing anti-inflammatory mediators is the pivotal factor predisposing individuals towards asthma development. The IL-1 cytokine family and its receptor systems comprise a variety of proinflammatory cytokines like IL-1β and IL-18 and anti-inflammatory molecules such as the Toll/interleukin-1 receptor 8/single Ig IL-1 receptor (IL-R)-related molecule (Tir8/SIGIRR) and the recently established cytokine IL-37. This article reviews the functions of these IL-1 cytokine family members in the regulation of allergic airway inflammation and asthma as they have been assessed clinically, in vitro and in mouse models.
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Affiliation(s)
- Lars Lunding
- a Division of Asthma Mouse Models, Priority Area Asthma & Allergy, Research Center Borstel, Airway Research Center North , Member of the German Center for Lung Research , Borstel , Germany
| | - Alexandra Schröder
- a Division of Asthma Mouse Models, Priority Area Asthma & Allergy, Research Center Borstel, Airway Research Center North , Member of the German Center for Lung Research , Borstel , Germany
| | - Michael Wegmann
- a Division of Asthma Mouse Models, Priority Area Asthma & Allergy, Research Center Borstel, Airway Research Center North , Member of the German Center for Lung Research , Borstel , Germany
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Zeng M, Dang W, Chen B, Qing Y, Xie W, Zhao M, Zhou J. IL-37 inhibits the production of pro-inflammatory cytokines in MSU crystal-induced inflammatory response. Clin Rheumatol 2015; 35:2251-8. [DOI: 10.1007/s10067-015-3109-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 09/18/2015] [Accepted: 10/27/2015] [Indexed: 12/13/2022]
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IL-37b gene transfer enhances the therapeutic efficacy of mesenchumal stromal cells in DSS-induced colitis mice. Acta Pharmacol Sin 2015; 36:1377-87. [PMID: 26190499 PMCID: PMC4635324 DOI: 10.1038/aps.2015.51] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 05/18/2015] [Indexed: 02/07/2023]
Abstract
AIM To investigate whether the transfer of the IL-37b gene, a newly identified inhibitor of both innate and adaptive immunity, could improve the therapeutic efficacy of mesenchumal stromal cells (MSCs) in inflammatory bowel disease (IBD). METHODS The expression of IL-37 in biopsied specimens of the patients with active ulcerative colitis (UC) was detected using RT-PCR and immunohistochemistry. Mice were treated with 3% dextran sulfate sodium (DSS) for 8 days to induce colitis. Before DSS treatment, the mice were injected with MSCs, MSC-eGFP or MSC-IL37b. Their body weight was measured each day, and the colons and spleens were harvested on d 10 for pathological and biochemical analyses. RESULTS In biopsied specimens of the patients with active UC, the expression of IL-37 was dramatically elevated in inflamed mucosa, mainly in epithelial cells and infiltrating immune cells. Compared to MSC-eGFP or MSCs, MSC-IL37b administration significantly attenuated the body weight and colon length reduction, and decreased the histological score in DSS-induced colitis mice. Furthermore, MSC-IL37b administration increased the percentage of myeloid-derived suppressor cells (MDSCs) among total splenic mononuclear cells as well as the percentage of regulatory T cells (Tregs) among splenic CD4+ T cells in the mice. Moreover, MSC-IL37b administration increased the IL-2+ cells and decreased the IFN-γ+ cells among splenic CD4+ T cells. CONCLUSION IL-37 is involved in the pathophysiology of UC. IL-37b gene transfer enhances the therapeutic efficacy of MSCs in DSS-induced colitis mice by inducing Tregs and MDSCs and regulating cytokine production.
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Yang T, Lin Q, Zhao M, Hu Y, Yu Y, Jin J, Zhou H, Hu X, Wei R, Zhang X, Yang X, Liu G, Lu P, Xu G, Yang J, Corry DB, Su SB, Liu S, Liu X. IL-37 Is a Novel Proangiogenic Factor of Developmental and Pathological Angiogenesis. Arterioscler Thromb Vasc Biol 2015; 35:2638-46. [PMID: 26515414 DOI: 10.1161/atvbaha.115.306543] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Accepted: 09/21/2015] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Angiogenesis is tightly controlled by growth factors and cytokines in pathophysiological settings. Interleukin 37 (IL-37) is a newly identified cytokine of the IL-1 family, some members of which are important in inflammation and angiogenesis. However, the function of IL-37 in angiogenesis remains unknown. We aimed to explore the regulatory role of IL-37 in pathological and physiological angiogenesis. APPROACH AND RESULTS We found that IL-37 was expressed and secreted in endothelial cells and upregulated under hypoxic conditions. IL-37 enhanced endothelial cell proliferation, capillary formation, migration, and vessel sprouting from aortic rings with potency comparable with that of vascular endothelial growth factor. IL-37 activates survival signals including extracellular signal-regulated kinase 1/2 and AKT in endothelial cells. IL-37 promoted vessel growth in implanted Matrigel plug in vivo in a dose-dependent manner with potency comparable with that of basic fibroblast growth factor. In the mouse model of retinal vascular development, neonatal mice administrated with IL-37 displayed increased neovascularization. We demonstrated further that IL-37 promoted pathological angiogenesis in the mouse model of oxygen-induced retinopathy. CONCLUSIONS Our findings suggest that IL-37 is a novel and potent proangiogenic cytokine with essential role in pathophy siological settings.
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Affiliation(s)
- Tianshu Yang
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.).
| | - Qing Lin
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Mengmeng Zhao
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Yongguang Hu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Ying Yu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Jiayi Jin
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Hongyan Zhou
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Xiao Hu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Rongbin Wei
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Xuetao Zhang
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Xiaoping Yang
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Gaoqin Liu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Peirong Lu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Guotong Xu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Jianhua Yang
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - David B Corry
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Shao Bo Su
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.)
| | - Shangfeng Liu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.).
| | - Xialin Liu
- From the Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (T.Y., Q.L., M.Z., Y.H., R.W., X.Z., G.X., J.Y., S.B.S.); Johns Hopkins University School of Medicine, Baltimore, MD (Q.L., X.Y.); State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China (Y.Y., J.J., H.Z., X.H., S.B.S., X.L.); Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China (G.L., P.L.); Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX (D.B.C.); and Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China (S.L.).
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Interleukin-1 Family Cytokines in Liver Diseases. Mediators Inflamm 2015; 2015:630265. [PMID: 26549942 PMCID: PMC4624893 DOI: 10.1155/2015/630265] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 09/27/2015] [Indexed: 02/06/2023] Open
Abstract
The gene encoding IL-1 was sequenced more than 30 years ago, and many related cytokines, such as IL-18, IL-33, IL-36, IL-37, IL-38, IL-1 receptor antagonist (IL-1Ra), and IL-36Ra, have since been identified. IL-1 is a potent proinflammatory cytokine and is involved in various inflammatory diseases. Other IL-1 family ligands are critical for the development of diverse diseases, including inflammatory and allergic diseases. Only IL-1Ra possesses the leader peptide required for secretion from cells, and many ligands require posttranslational processing for activation. Some require inflammasome-mediated processing for activation and release, whereas others serve as alarmins and are released following cell membrane rupture, for example, by pyroptosis or necroptosis. Thus, each ligand has the proper molecular process to exert its own biological functions. In this review, we will give a brief introduction to the IL-1 family cytokines and discuss their pivotal roles in the development of various liver diseases in association with immune responses. For example, an excess of IL-33 causes liver fibrosis in mice via activation and expansion of group 2 innate lymphoid cells to produce type 2 cytokines, resulting in cell conversion into pro-fibrotic M2 macrophages. Finally, we will discuss the importance of IL-1 family cytokine-mediated molecular and cellular networks in the development of acute and chronic liver diseases.
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198
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Shuai X, Wei-min L, Tong YL, Dong N, Sheng ZY, Yao YM. Expression of IL-37 contributes to the immunosuppressive property of human CD4+CD25+ regulatory T cells. Sci Rep 2015; 5:14478. [PMID: 26411375 PMCID: PMC4585986 DOI: 10.1038/srep14478] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 09/01/2015] [Indexed: 12/02/2022] Open
Abstract
Interleukin-37 (IL-37) possesses the function of down-regulate systemic and local inflammation. It is unknown whether IL-37 is expressed in human regulatory T cells (Tregs) and its role in modulating the immune response of Tregs. In the present study, cell surface molecules and secretory cytokines were analyzed in order to determine the function of IL-37 in regulating inhibitory effect of human CD4+CD25+Tregs. Meanwhile, the effects of IL-37 on T cell differentiation and proliferation as co-culture of CD4+CD25+Treg/CD4+CD25−T cell were also investigated. It was showed that IL-37 was expressed in cytoplasm of CD4+CD25+Tregs, and the levels of IL-37 were gradually elevated with the enhanced activity of CD4+CD25+Tregs. Secretory cytokines such as transforming growth factor (TGF)-β and interleukin (IL)-10, and expressions of cell surface molecules, including forkhead/winged helix transcription factor p3 (FOXP3) and cytotoxic T-lymphocyte associated antigen (CTLA)-4, were significantly decreased when IL-37 gene was silenced by siRNA. Furthermore, down-regulation of IL-37 expression in human CD4+CD25+Tregs obviously promoted proliferation of co-cultured T cell and differentiation, together with observably enhancement of IL-2 formation. These results demonstrated that IL-37 might manifest as a critical protein involving in immunosuppression of human CD4+CD25+Tregs.
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Affiliation(s)
- Xu Shuai
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, China.,Department of Hepatobiliary Surgery, the 309th Hospital of Chinese PLA, Beijing 100091, China
| | - Li Wei-min
- Department of Hepatobiliary Surgery, the 309th Hospital of Chinese PLA, Beijing 100091, China
| | - Ya-lin Tong
- Department of Burns and Plastic Surgery, the 181st Hospital of Chinese PLA, Guilin 541002, China
| | - Ning Dong
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, China
| | - Zhi-yong Sheng
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, China
| | - Yong-ming Yao
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing 100048, China
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199
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Shaoyuan C, Ming D, Yulang H, Hongcheng F. Increased IL-37 in Atherosclerotic Disease could be Suppressed by Atorvastatin Therapy. Scand J Immunol 2015; 82:328-36. [PMID: 26074195 DOI: 10.1111/sji.12322] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 04/27/2015] [Indexed: 02/06/2023]
Affiliation(s)
- C. Shaoyuan
- Department of cardiology; Nanshan Hospital; Guangdong Medical College; Shenzhen China
| | - D. Ming
- Department of Pathophysiology; School of Medicine; Shenzhen University; Shenzhen China
| | - H. Yulang
- School of Guangdong Medical College; Zhanjiang China
| | - F. Hongcheng
- Department of cardiology; Nanshan Hospital; Guangdong Medical College; Shenzhen China
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Plasma Interleukin-37 Is Elevated in Patients with Rheumatoid Arthritis: Its Correlation with Disease Activity and Th1/Th2/Th17-Related Cytokines. DISEASE MARKERS 2015; 2015:795043. [PMID: 26435567 PMCID: PMC4578832 DOI: 10.1155/2015/795043] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 08/09/2015] [Accepted: 08/11/2015] [Indexed: 01/18/2023]
Abstract
Interleukin- (IL-) 37 is a novel anti-inflammatory cytokine that suppresses immune response and inflammation. This study was performed to determine whether IL-37 was elevated in patients with rheumatoid arthritis (RA) and investigate the correlation between IL-37 level and disease activity and the concentration of Th1/Th2/Th17-related cytokines. Clinical parameters of disease activity, including the 28-joint disease activity score (DAS28) and C-reactive protein (CRP), were collected in 34 RA patients and 34 age- and sex-matched healthy controls. Plasma IL-37 was measured by ELISA. Plasma levels of TNF-α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12, IL-13, IL-17, G-CSF, GM-CSF, IFN-γ, MCP-1, and MIP-1β were analyzed using the Bio-Plex suspension array system. It was found that IL-37 levels were elevated markedly in RA patients and almost undetectable in healthy controls. In addition, IL-37 levels in patients with active RA were significantly enhanced as compared with those in patients of remission. More importantly, IL-37 showed a significant correlation with disease activity (DAS28) and IL-4, IL-7, IL-10, IL-12, and IL-13 concentrations in RA patients. These findings suggest that IL-37 plays an important role in the pathogenesis of RA and may prove to be a potential biomarker of active RA.
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