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Westmeier J, Brochtrup A, Paniskaki K, Karakoese Z, Werner T, Sutter K, Dolff S, Limmer A, Mittermüller D, Liu J, Zheng X, Koval T, Kaidashev I, Berger MM, Herbstreit F, Brenner T, Witzke O, Trilling M, Lu M, Yang D, Babel N, Westhoff T, Dittmer U, Zelinskyy G. Macrophage migration inhibitory factor receptor CD74 expression is associated with expansion and differentiation of effector T cells in COVID-19 patients. Front Immunol 2023; 14:1236374. [PMID: 37946732 PMCID: PMC10631787 DOI: 10.3389/fimmu.2023.1236374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/02/2023] [Indexed: 11/12/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused millions of COVID-19 cases and deaths worldwide. Severity of pulmonary pathologies and poor prognosis were reported to be associated with the activation non-virus-specific bystander T cells. In addition, high concentrations of the macrophage migration inhibitory factor (MIF) were found in serum of COVID-19 patients. We hypothesized that these two pathogenic factors might be related and analyzed the expression of receptors for MIF on T cells in COVID-19. T cells from PBMCs of hospitalized patients with mild and severe COVID-19 were characterized. A significantly higher proportion of CD4+ and CD8+ T cells from COVID-19 patients expressed CD74 on the cell surface compared to healthy controls. To induce intracellular signaling upon MIF binding, CD74 forms complexes with CD44, CXCR2, or CXCR4. The vast majority of CD74+ T cells expressed CD44, whereas expression of CXCR2 and CXCR4 was low in controls but increased upon SARS-CoV-2 infection. Hence, T cells in COVID-19 patients express receptors that render them responsive to MIF. A detailed analysis of CD74+ T cell populations revealed that most of them had a central memory phenotype early in infection, while cells with an effector and effector memory phenotype arose later during infection. Furthermore, CD74+ T cells produced more cytotoxic molecules and proliferation markers. Our data provide new insights into the MIF receptor and co-receptor repertoire of bystander T cells in COVID-19 and uncovers a novel and potentially druggable aspect of the immunological footprint of SARS-CoV-2.
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Affiliation(s)
- Jaana Westmeier
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Annika Brochtrup
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Krystallenia Paniskaki
- Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University Duisburg-Essen, Essen, Germany
- Center for Translational Medicine, Medical Department I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany
| | - Zehra Karakoese
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Tanja Werner
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Kathrin Sutter
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Sebastian Dolff
- Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Andreas Limmer
- Department of Anesthesiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
- Department of Pediatric Heart Surgery, Friedrich-Alexander- Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Daniela Mittermüller
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Jia Liu
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
- Department of Infectious Diseases, Union Hospital of Tonji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Xin Zheng
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
- Department of Infectious Diseases, Union Hospital of Tonji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Tetiana Koval
- Department of Infectious Diseases with Epidemiology, Poltava State Medical University, Poltava, Ukraine
| | - Igor Kaidashev
- Department of Internal Medicine №3 with Phthisiology, Poltava State Medical University, Poltava, Ukraine
| | - Marc Moritz Berger
- Department of Anesthesiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Frank Herbstreit
- Department of Anesthesiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Thorsten Brenner
- Department of Anesthesiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Oliver Witzke
- Department of Infectious Diseases, West German Centre of Infectious Diseases, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Mengji Lu
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Dongliang Yang
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
- Department of Infectious Diseases, Union Hospital of Tonji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Nina Babel
- Center for Translational Medicine, Medical Department I, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin-Brandenburg Center for Regenerative Therapies, Berlin, Germany
| | - Timm Westhoff
- Medical Department I, Marien Hospital Herne, University Hospital of the Ruhr University of Bochum, Herne, Germany
| | - Ulf Dittmer
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Gennadiy Zelinskyy
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Joint International Laboratory of Infection and Immunity, Huazhong University of Science and Technology (HUST), Wuhan, China
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Lai NS, Yu HC, Huang HB, Huang Tseng HY, Lu MC. Increased Expression of Long Noncoding RNA LOC100506314 in T cells from Patients with Nonsegmental Vitiligo and Its Contribution to Vitiligo Pathogenesis. Mediators Inflamm 2023; 2023:2440377. [PMID: 37731844 PMCID: PMC10509001 DOI: 10.1155/2023/2440377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 07/04/2023] [Accepted: 08/23/2023] [Indexed: 09/22/2023] Open
Abstract
This study aimed to identify the abnormal expression of long noncoding RNAs (lncRNAs) in T cells from patients with vitiligo and to investigate their functional roles in the immune system. Using microarray analysis, the expression levels of RNA transcripts in T cells from patients with vitiligo and controls were compared. We identified several genes and validated their expression levels in T cells from 41 vitiligo patients and 41 controls. The biological functions of the lncRNAs were studied in a transfection study using an RNA pull-down assay, followed by proteomic analysis and western blotting. The expression levels of 134 genes were significantly increased, and those of 142 genes were significantly decreased in T cells from vitiligo patients. After validation, six genes had increased expression, and three genes had decreased expression in T cells from patients with vitiligo. T-cell expression of LOC100506314 was increased in vitiligo, especially CD4+, but not CD8+ T cells. The expression levels of LOC100506314 in CD4+ T cells was positively and significantly associated with the severity of vitiligo. LOC100506314 was bound to the signal transducer and activator of transcription 3 (STAT3) and macrophage migration inhibitory factor (MIF). Enhanced expression of LOC100506314 inhibited the phosphorylation of STAT3, protein kinase B (AKT), and extracellular signal-regulated protein kinases (ERK), as well as the levels of nuclear protein of p65 and the expression of IL-6 and IL-17 in Jurkat cells and T cells from patients with vitiligo. In conclusion, this study showed that the expression of LOC100506314 was elevated in CD4+ T cells from patients with vitiligo and associated the severity of vitiligo. LOC100506314 interacted with STAT3 and MIF and inhibited IL-6 and IL-17 expression by suppressing the STAT3, nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), AKT, and ERK pathways. Enhanced expression of LOC100506314 in T cells may be a potential treatment strategy for vitiligo.
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Affiliation(s)
- Ning-Sheng Lai
- Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin 62247, Chiayi, Taiwan
- School of Medicine, Tzu Chi University, Hualien City 97071, Taiwan
| | - Hui-Chun Yu
- Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin 62247, Chiayi, Taiwan
| | - Hsien-Bin Huang
- Department of Biomedical Sciences, National Chung Cheng University, Minxiong, Chiayi 62130, Taiwan
| | - Hsien-Yu Huang Tseng
- Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin 62247, Chiayi, Taiwan
| | - Ming-Chi Lu
- Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin 62247, Chiayi, Taiwan
- School of Medicine, Tzu Chi University, Hualien City 97071, Taiwan
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Chen J, Guo W, Du P, Cui T, Yang Y, Wang Y, Kang P, Zhang Z, Wang Q, Ye Z, Liu L, Jian Z, Gao T, Bian H, Li S, Li C. MIF inhibition alleviates vitiligo progression by suppressing CD8 + T cell activation and proliferation. J Pathol 2023; 260:84-96. [PMID: 36852981 DOI: 10.1002/path.6073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 01/18/2023] [Accepted: 02/22/2023] [Indexed: 03/01/2023]
Abstract
In vitiligo, autoreactive CD8+ T cells have been established as the main culprit considering its pathogenic role in mediating epidermal melanocyte-specific destruction. Macrophage migration inhibitory factor (MIF) is a pleiotropic molecule that plays a central role in various immune processes including the activation and proliferation of T cells; but whether MIF is intertwined in vitiligo development and progression and its involvement in aberrantly activated CD8+ T cells remains ill-defined. In this study, we found that MIF was overabundant in vitiligo patients and a mouse model for human vitiligo. Additionally, inhibiting MIF ameliorated the disease progression in vitiligo mice, which manifested as less infiltration of CD8+ T cells and more retention of epidermal melanocytes in the tail skin. More importantly, in vitro experiments indicated that MIF-inhibition suppressed the activation and proliferation of CD8+ T cells from the lymph nodes of vitiligo mice, and the effect extended to CD8+ T cells in peripheral blood mononuclear cells of vitiligo patients. Finally, CD8+ T cells derived from MIF-inhibited vitiligo mice also exhibited an impaired capacity for activation and proliferation. Taken together, our results show that MIF might be clinically targetable in vitiligo treatment, and its inhibition might ameliorate vitiligo progression by suppressing autoreactive CD8+ T cell activation and proliferation. © 2023 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Jianru Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Weinan Guo
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Pengran Du
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Tingting Cui
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Yuqi Yang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Yinghan Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Pan Kang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Zhe Zhang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Qi Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Zhubiao Ye
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Ling Liu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Zhe Jian
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Tianwen Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Huijie Bian
- National Translational Science Center for Molecular Medicine and Department of Cell Biology, Fourth Military Medical University, Xi'an, PR China
| | - Shuli Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, PR China
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Sun W, Ma J, Chen M, Zhang W, Xu C, Nan Y, Wu W, Mao X, Cheng X, Cai H, Zhang J, Xu H, Wang Y. 4-Iodo-6-phenylpyrimidine (4-IPP) suppresses fibroblast-like synoviocyte- mediated inflammation and joint destruction associated with rheumatoid arthritis. Int Immunopharmacol 2023; 115:109714. [PMID: 36657337 DOI: 10.1016/j.intimp.2023.109714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/20/2022] [Accepted: 01/06/2023] [Indexed: 01/19/2023]
Abstract
Rheumatoid arthritis (RA) is a systemic immune-mediated inflammatory disease that significantly impacts patients' quality of life. Fibroblast-like synovial cells (FLSs) within the synovial intima exhibit "tumor-like" properties such as increased proliferation, migration, and invasion. Activation of FLSs and secretion of pro-inflammation factors result in pannus formation and cartilage destruction. As an inhibitor of the cytokine, macrophage migration inhibitory factor (MIF), 4-Iodo-6-phenylpyrimidine (4-IPP) has been shown to reduce cell proliferation, migration, invasion, and the secretion of pro-inflammatory mediators in a variety of diseases. However, the usefulness of 4-IPP for RA treatment has not been assessed and was the purpose of this study. In vitro, 4-IPP was demonstrated to inhibit proliferation, migration, and invasion of RA FLSs, as well as the expression of pro-inflammatory cytokines. 4-IPP was also shown to inhibit MIF-induced phosphorylation of ERK, JNK, and p38, as well as reduce expression of COX2 and PGE2. In order to efficiently deliver 4-IPP to anatomical RA sites, we developed lactic-co-glycolic acid (PLGA) nanospheres, which not only protected 4-IPP from degradation but also controlled the release of 4-IPP. 4-IPP/PLGA nanospheres had potent anti-inflammatory activity and a high degree of biosafety. Results showed that local 4-IPP concentration was increased by nanosphere delivery, effectively reducing the inflammatory microenvironment as well as synovial inflammation, joint swelling, and cartilage destruction in a collagen-induced rheumatoid arthritis (CIA) rat model. Therefore, 4-IPP nanospheres are a sustained-release delivery system that may be an effective therapeutic strategy for RA treatment.
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Affiliation(s)
- Weiwei Sun
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Jinquan Ma
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Minhao Chen
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Weidong Zhang
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Chunxiang Xu
- Department of Nursing, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Yunyi Nan
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Weijie Wu
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Xingxing Mao
- Department of Orthopaedics, The Sixth People's Hospital of Nantong, Nantong, Jiangsu 226001, China
| | - Xi Cheng
- Department of Gynecology and Obstetrics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Hao Cai
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Jianhua Zhang
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China
| | - Hua Xu
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China.
| | - Youhua Wang
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China.
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Methods to Determine the Effects of MIF on In Vitro Osteoclastogenesis Using Murine Bone Marrow-Derived Cells and Human Peripheral Blood Mononuclear Cells. Methods Mol Biol 2020; 2080:135-145. [PMID: 31745877 DOI: 10.1007/978-1-4939-9936-1_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Osteoclasts are the only cells that are capable of resorbing bones, and they are involved in multiple diseases and disorders. This chapter will describe several in vitro osteoclastogenesis methods, which allows further investigation of molecular mechanisms of osteoclastogenesis in normal physiological and disease conditions. This chapter includes a protocol for isolating osteoclast progenitors from mouse bone marrow and human peripheral blood, as well as obtaining murine osteoblasts for the coculture system. Furthermore, culture and identification of multinucleated osteoclasts in vitro is also described in this chapter.
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Investigating MIF in Mouse Model of Gout. Methods Mol Biol 2019. [PMID: 31745884 DOI: 10.1007/978-1-4939-9936-1_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Mice are widely used to assess the pathogenesis of diseases. An experimental model of gout consists of the injection of uric acid crystals into joints of mice, which reproduce inflammation and functional changes of the human disease. Uric acid crystals activate synoviocytes culminating in the release of IL-1β and neutrophil recruitment, key inflammatory elements in gouty arthritis. Since MIF plays an important role in orchestrating gout inflammation, we detail valuable procedures to investigate uric acid crystal-induced joint inflammation in mice and give options for further understanding the functions of MIF in gouty arthritis in vivo and in vitro.
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Bilsborrow JB, Doherty E, Tilstam PV, Bucala R. Macrophage migration inhibitory factor (MIF) as a therapeutic target for rheumatoid arthritis and systemic lupus erythematosus. Expert Opin Ther Targets 2019; 23:733-744. [PMID: 31414920 DOI: 10.1080/14728222.2019.1656718] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Introduction. Macrophage migration inhibitory factor (MIF) is a pleiotropic inflammatory cytokine with upstream regulatory roles in innate and adaptive immunity and is implicated in the pathogenesis of autoimmune diseases including rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). Several classes of MIF inhibitors such as small molecule inhibitors and peptide inhibitors are in clinical development. Areas covered. The role of MIF in the pathogenesis of RA and SLE is examined; the authors review the structure, physiology and signaling characteristics of MIF and the related cytokine D-DT/MIF-2. The preclinical and clinical trial data for MIF inhibitors are also reviewed; information was retrieved from PubMed and ClinicalTrials.gov using the keywords MIF, D-DT/MIF-2, CD74, CD44, CXCR2, CXCR4, Jab-1, rheumatoid arthritis, systemic lupus erythematosus, MIF inhibitor, small molecule, anti-MIF, anti-CD74, and peptide inhibitor. Expert opinion. Studies in mice and in humans demonstrate the therapeutic potential of MIF inhibition for RA and SLE. MIF- directed approaches could be particularly efficacious in patients with high expression MIF genetic polymorphisms. In patients with RA and SLE and high expression MIF alleles, targeted MIF inhibition could be a precision medicine approach to treatment. Anti-MIF pharmacotherapies could also be steroid-sparing in patients with chronic glucocorticoid dependence or refractory autoimmune disease.
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Affiliation(s)
- Joshua B Bilsborrow
- Department of Internal Medicine, Yale University School of Medicine , New Haven , CT , USA
| | - Edward Doherty
- Department of Internal Medicine, Yale University School of Medicine , New Haven , CT , USA
| | - Pathricia V Tilstam
- Department of Internal Medicine, Yale University School of Medicine , New Haven , CT , USA
| | - Richard Bucala
- Department of Internal Medicine, Yale University School of Medicine , New Haven , CT , USA
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Shen D, Lang Y, Chu F, Wu X, Wang Y, Zheng X, Zhang HL, Zhu J, Liu K. Roles of macrophage migration inhibitory factor in Guillain-Barré syndrome and experimental autoimmune neuritis: beneficial or harmful? Expert Opin Ther Targets 2018; 22:567-577. [PMID: 29856236 DOI: 10.1080/14728222.2018.1484109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Macrophage migration inhibitory factor (MIF) plays an important role in the pathogenesis of Guillain-Barré syndrome (GBS) and its animal model experimental autoimmune neuritis (EAN), which may offer an opportunity for the development of the novel therapeutic strategies for GBS. Areas covered: 'macrophage migration inhibitory factor' and 'Guillain-Barré syndrome' were used as keywords to search for related publications on Pub-Med, National Center for Biotechnology Information (NCBI), USA. MIF is involved in the etiology of various inflammatory and autoimmune disorders. However, the roles of MIF in GBS and EAN have not been summarized in the publications we identified. Therefore, in this review, we described and analyzed the major roles of MIF in GBS/EAN. Primarily, this molecule aggravates the inflammatory responses in this disorder. However, multiple studies indicated a protective role of MIF in GBS. The potential of MIF as a therapeutic target in GBS has been recently demonstrated in experimental and clinical studies, although clinical trials have been unavailable to date. Expert opinion: MIF plays a critical role in the initiation and progression of GBS and EAN, and it may represent a potential therapeutic target for GBS.
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Affiliation(s)
- Donghui Shen
- a Neuroscience Center, Department of Neurology , The First Hospital of Jilin University, Jilin University , Changchun , China
| | - Yue Lang
- a Neuroscience Center, Department of Neurology , The First Hospital of Jilin University, Jilin University , Changchun , China
| | - Fengna Chu
- a Neuroscience Center, Department of Neurology , The First Hospital of Jilin University, Jilin University , Changchun , China
| | - Xiujuan Wu
- a Neuroscience Center, Department of Neurology , The First Hospital of Jilin University, Jilin University , Changchun , China
| | - Ying Wang
- b Department of Neurobiology, Care Sciences and Society , Division of Neurodegeneration, Karolinska Institute, Karolinska University Hospital Huddinge , Stockholm , Sweden
| | - Xiangyu Zheng
- a Neuroscience Center, Department of Neurology , The First Hospital of Jilin University, Jilin University , Changchun , China
| | - Hong-Liang Zhang
- c Department of Life Sciences , the National Natural Science Foundation of China , Beijing , China
| | - Jie Zhu
- a Neuroscience Center, Department of Neurology , The First Hospital of Jilin University, Jilin University , Changchun , China.,b Department of Neurobiology, Care Sciences and Society , Division of Neurodegeneration, Karolinska Institute, Karolinska University Hospital Huddinge , Stockholm , Sweden
| | - Kangding Liu
- a Neuroscience Center, Department of Neurology , The First Hospital of Jilin University, Jilin University , Changchun , China
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Zahoor I, de Koning DJ, Hocking PM. Transcriptional profile of breast muscle in heat stressed layers is similar to that of broiler chickens at control temperature. Genet Sel Evol 2017; 49:69. [PMID: 28931372 PMCID: PMC5607596 DOI: 10.1186/s12711-017-0346-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 08/31/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND In recent years, the commercial importance of changes in muscle function of broiler chickens and of the corresponding effects on meat quality has increased. Furthermore, broilers are more sensitive to heat stress during transport and at high ambient temperatures than smaller egg-laying chickens. We hypothesised that heat stress would amplify muscle damage and expression of genes that are involved in such changes and, thus, lead to the identification of pathways and networks associated with broiler muscle and meat quality traits. Broiler and layer chickens were exposed to control or high ambient temperatures to characterise differences in gene expression between the two genotypes and the two environments. RESULTS Whole-genome expression studies in breast muscles of broiler and layer chickens were conducted before and after heat stress; 2213 differentially-expressed genes were detected based on a significant (P < 0.05) genotype × treatment interaction. This gene set was analysed with the BioLayout Express3D and Ingenuity Pathway Analysis software and relevant biological pathways and networks were identified. Genes involved in functions related to inflammatory reactions, cell death, oxidative stress and tissue damage were upregulated in control broilers compared with control and heat-stressed layers. Expression of these genes was further increased in heat-stressed broilers. CONCLUSIONS Differences in gene expression between broiler and layer chickens under control and heat stress conditions suggest that damage of breast muscles in broilers at normal ambient temperatures is similar to that in heat-stressed layers and is amplified when broilers are exposed to heat stress. The patterns of gene expression of the two genotypes under heat stress were almost the polar opposite of each other, which is consistent with the conclusion that broiler chickens were not able to cope with heat stress by dissipating their body heat. The differentially expressed gene networks and pathways were consistent with the pathological changes that are observed in the breast muscle of heat-stressed broilers.
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Affiliation(s)
- Imran Zahoor
- Division of Genetics and Genomics, Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, UK.,Department of Animal Breeding and Genetics, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Dirk-Jan de Koning
- Division of Genetics and Genomics, Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, UK.,Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden
| | - Paul M Hocking
- Division of Genetics and Genomics, Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, UK.
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Movila A, Ishii T, Albassam A, Wisitrasameewong W, Howait M, Yamaguchi T, Ruiz-Torruella M, Bahammam L, Nishimura K, Van Dyke T, Kawai T. Macrophage Migration Inhibitory Factor (MIF) Supports Homing of Osteoclast Precursors to Peripheral Osteolytic Lesions. J Bone Miner Res 2016; 31:1688-700. [PMID: 27082509 PMCID: PMC5010512 DOI: 10.1002/jbmr.2854] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/28/2016] [Accepted: 04/12/2016] [Indexed: 12/11/2022]
Abstract
By binding to its chemokine receptor CXCR4 on osteoclast precursor cells (OCPs), it is well known that stromal cell-derived factor-1 (SDF-1) promotes the chemotactic recruitment of circulating OCPs to the homeostatic bone remodeling site. However, the engagement of circulating OCPs in pathogenic bone resorption remains to be elucidated. The present study investigated a possible chemoattractant role of macrophage migration inhibitory factor (MIF), another ligand for C-X-C chemokine receptor type 4 (CXCR4), in the recruitment of circulating OCPs to the bone lytic lesion. To accomplish this, we used Csf1r-eGFP-knock-in (KI) mice to establish an animal model of polymethylmethacrylate (PMMA) particle-induced calvarial osteolysis. In the circulating Csf1r-eGFP+ cells of healthy Csf1r-eGFP-KI mice, Csf1r+/CD11b+ cells showed a greater degree of RANKL-induced osteoclastogenesis compared to a subset of Csf1r+/RANK+ cells in vitro. Therefore, Csf1r-eGFP+/CD11b+ cells were targeted as functionally relevant OCPs in the present study. Although expression of the two cognate receptors for MIF, CXCR2 and CXCR4, was elevated on Csf1r+/CD11b+ cells, transmigration of OCPs toward recombinant MIF in vitro was facilitated by ligation with CXCR4, but not CXCR2. Meanwhile, the level of PMMA-induced bone resorption in calvaria was markedly greater in wild-type (WT) mice compared to that detected in MIF-knockout (KO) mice. Interestingly, in contrast to the elevated MIF, diminished SDF-1 was detected in a particle-induced bone lytic lesion of WT mice in conjunction with an increased number of infiltrating CXCR4+ OCPs. However, such diminished SDF-1 was not found in the PMMA-injected calvaria of MIF-KO mice. Furthermore, stimulation of osteoblasts with MIF in vitro suppressed their production of SDF-1, suggesting that MIF can downmodulate SDF-1 production in bone tissue. Systemically administered anti-MIF neutralizing monoclonal antibody (mAb) inhibited the homing of CXCR4+ OCPs, as well as bone resorption, in the PMMA-injected calvaria, while increasing locally produced SDF-1. Collectively, these data suggest that locally produced MIF in the inflammatory bone lytic site is engaged in the chemoattraction of circulating CXCR4+ OCPs. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Alexandru Movila
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - Takenobu Ishii
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,Department of Orthodontics, Tokyo Dental College, Tokyo, Japan
| | - Abdullah Albassam
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,School of Dental Medicine, Harvard University, Boston, MA, USA.,Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Wichaya Wisitrasameewong
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,School of Dental Medicine, Harvard University, Boston, MA, USA.,Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Mohammed Howait
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Tsuguno Yamaguchi
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,Research and Development Headquarters, LION Corporation, Kanagawa, Japan
| | | | - Laila Bahammam
- Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Kazuaki Nishimura
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,Graduate School of Dentistry, Tohoku University, Sendai, Japan
| | - Thomas Van Dyke
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA
| | - Toshihisa Kawai
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA, USA.,School of Dental Medicine, Harvard University, Boston, MA, USA
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11
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Connelly KL, Kandane-Rathnayake R, Hoi A, Nikpour M, Morand EF. Association of MIF, but not type I interferon-induced chemokines, with increased disease activity in Asian patients with systemic lupus erythematosus. Sci Rep 2016; 6:29909. [PMID: 27453287 PMCID: PMC4958969 DOI: 10.1038/srep29909] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 06/24/2016] [Indexed: 11/18/2022] Open
Abstract
Ethnicity is a key factor impacting on disease severity in SLE, but molecular mechanisms of these associations are unknown. Type I IFN and MIF have each been associated with SLE pathogenesis. We investigated whether increased SLE severity in Asian patients is associated with either MIF or Type I IFN. SLE patients (n = 151) had prospective recording of disease variables. Serum MIF, and a validated composite score of three Type I IFN-inducible chemokines (IFNCK:CCL2, CXCL10, CCL19) were measured. Associations of MIF and IFNCK score with disease activity were assessed, with persistent active disease (PAD) used as a marker of high disease activity over a median 2.6 years follow up. In univariable analysis, MIF, IFNCK score and Asian ethnicity were significantly associated with PAD. Asian ethnicity was associated with higher MIF but not IFNCK score. In multivariable logistic regression analysis, MIF (OR3.62 (95% CI 1.14,11.5), p = 0.03) and Asian ethnicity (OR3.00 (95% CI 1.39,6.46), p < 0.01) but not IFNCK were significantly associated with PAD. These results potentially support an effect of MIF, but not Type I IFN, in heightened SLE disease severity in Asian SLE. The associations of MIF and Asian ethnicity with PAD are at least partly independent.
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Affiliation(s)
- K L Connelly
- Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - R Kandane-Rathnayake
- Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - A Hoi
- Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Mandana Nikpour
- Department of Medicine and Rheumatology, The University of Melbourne at St. Vincent's Hospital, Melbourne, Australia
| | - E F Morand
- Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
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12
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Lang T, Foote A, Lee JPW, Morand EF, Harris J. MIF: Implications in the Pathoetiology of Systemic Lupus Erythematosus. Front Immunol 2015; 6:577. [PMID: 26617609 PMCID: PMC4641160 DOI: 10.3389/fimmu.2015.00577] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 10/28/2015] [Indexed: 12/25/2022] Open
Abstract
Macrophage migration Inhibitory factor (MIF) was one of the earliest pro-inflammatory cytokines to be identified. Increasing interest in this cytokine in recent decades has followed the cloning of human MIF and the generation of Mif−/− mice. Deepening understanding of signaling pathways utilized by MIF and putative receptor mechanisms have followed. MIF is distinct from all other cytokines by virtue of its unique induction by and counter regulation of glucocorticoids (GCs). MIF is further differentiated from other cytokines by its structural homology to specific tautomerase and isomerase enzymes and correlative in vitro enzymatic functions. The role of MIF in immune and inflammatory states, including a range of human autoimmune diseases, is now well established, as are the relationships between MIF polymorphisms and a number of inflammatory diseases. Here, we review the known pleiotropic activities of MIF, in addition to novel functions of MIF in processes including autophagy and autophagic cell death. In addition, recent developments in the understanding of the role of MIF in systemic lupus erythematosus (SLE) are reviewed. Finally, we discuss the potential application of anti-MIF strategies to treat human diseases such as SLE, which will require a comprehensive understanding of the unique and complex activities of this ubiquitously expressed cytokine.
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Affiliation(s)
- Tali Lang
- Lupus Research Group, Monash Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash Medical Centre , Clayton, VIC , Australia
| | - Andrew Foote
- Lupus Research Group, Monash Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash Medical Centre , Clayton, VIC , Australia
| | - Jacinta P W Lee
- Lupus Research Group, Monash Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash Medical Centre , Clayton, VIC , Australia
| | - Eric F Morand
- Lupus Research Group, Monash Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash Medical Centre , Clayton, VIC , Australia
| | - James Harris
- Lupus Research Group, Monash Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash Medical Centre , Clayton, VIC , Australia
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13
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Elshabrawy HA, Chen Z, Volin MV, Ravella S, Virupannavar S, Shahrara S. The pathogenic role of angiogenesis in rheumatoid arthritis. Angiogenesis 2015; 18:433-48. [PMID: 26198292 PMCID: PMC4879881 DOI: 10.1007/s10456-015-9477-2] [Citation(s) in RCA: 320] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 07/14/2015] [Indexed: 12/31/2022]
Abstract
Angiogenesis is the formation of new capillaries from pre-existing vasculature, which plays a critical role in the pathogenesis of several inflammatory autoimmune diseases such as rheumatoid arthritis (RA), spondyloarthropathies, psoriasis, systemic lupus erythematosus, systemic sclerosis, and atherosclerosis. In RA, excessive migration of circulating leukocytes into the inflamed joint necessitates formation of new blood vessels to provide nutrients and oxygen to the hypertrophic joint. The dominance of the pro-angiogenic factors over the endogenous angiostatic mediators triggers angiogenesis. In this review article, we highlight the underlying mechanisms by which cells present in the RA synovial tissue are modulated to secrete pro-angiogenic factors. We focus on the significance of pro-angiogenic factors such as growth factors, hypoxia-inducible factors, cytokines, chemokines, matrix metalloproteinases, and adhesion molecules on RA pathogenesis. As pro-angiogenic factors are primarily produced from RA synovial tissue macrophages and fibroblasts, we emphasize the key role of RA synovial tissue lining layer in maintaining synovitis through neovascularization. Lastly, we summarize the specific approaches utilized to target angiogenesis. We conclude that the formation of new blood vessels plays an indispensable role in RA progression. However, since the function of several pro-angiogenic mediators is cross regulated, discovering novel approaches to target multiple cascades or selecting an upstream cascade that impairs the activity of a number of pro-angiogenic factors may provide a promising strategy for RA therapy.
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Affiliation(s)
- Hatem A Elshabrawy
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Zhenlong Chen
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Michael V Volin
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL, 60515, USA
| | - Shalini Ravella
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Shanti Virupannavar
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Shiva Shahrara
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA.
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14
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Gu R, Santos LL, Ngo D, Fan H, Singh PP, Fingerle-Rowson G, Bucala R, Xu J, Quinn JMW, Morand EF. Macrophage migration inhibitory factor is essential for osteoclastogenic mechanisms in vitro and in vivo mouse model of arthritis. Cytokine 2015; 72:135-45. [PMID: 25647268 DOI: 10.1016/j.cyto.2014.11.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/27/2014] [Accepted: 11/16/2014] [Indexed: 01/21/2023]
Abstract
Macrophage migration inhibitory factor (MIF) enhances activation of leukocytes, endothelial cells and fibroblast-like synoviocytes (FLS), thereby contributing to the pathogenesis of rheumatoid arthritis (RA). A MIF promoter polymorphism in RA patients resulted in higher serum MIF concentration and worsens bone erosion; controversially current literature reported an inhibitory role of MIF in osteoclast formation. The controversial suggested that the precise role of MIF and its putative receptor CD74 in osteoclastogenesis and RA bone erosion, mediated by locally formed osteoclasts in response to receptor activator of NF-κB ligand (RANKL), is unclear. We reported that in an in vivo K/BxN serum transfer arthritis, reduced clinical and histological arthritis in MIF(-/-) and CD74(-/-) mice were accompanied by a virtual absence of osteoclasts at the synovium-bone interface and reduced osteoclast-related gene expression. Furthermore, in vitro osteoclast formation and osteoclast-related gene expression were significantly reduced in MIF(-/-) cells via decreasing RANKL-induced phosphorylation of NF-κB-p65 and ERK1/2. This was supported by a similar reduction of osteoclastogenesis observed in CD74(-/-) cells. Furthermore, a MIF blockade reduced RANKL-induced osteoclastogenesis via deregulating RANKL-mediated NF-κB and NFATc1 transcription factor activation. These data indicate that MIF and CD74 facilitate RANKL-induced osteoclastogenesis, and suggest that MIF contributes directly to bone erosion, as well as inflammation, in RA.
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Affiliation(s)
- Ran Gu
- Centre for Inflammatory Disease, Monash University, Clayton, Australia
| | - Leilani L Santos
- Centre for Inflammatory Disease, Monash University, Clayton, Australia
| | - Devi Ngo
- Centre for Inflammatory Disease, Monash University, Clayton, Australia
| | - HuaPeng Fan
- Centre for Inflammatory Disease, Monash University, Clayton, Australia
| | | | | | - Richard Bucala
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Jiake Xu
- School of Pathology and Laboratory Medicine, The University of Western Australia, Crawley, Australia
| | - Julian M W Quinn
- Prince Henry's Institute, Clayton, Australia; Dept of Biochemistry and Molecular Biology, Monash University, Clayton, Australia
| | - Eric F Morand
- Centre for Inflammatory Disease, Monash University, Clayton, Australia.
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15
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Fan H, Kao W, Yang YH, Gu R, Harris J, Fingerle-Rowson G, Bucala R, Ngo D, Beaulieu E, Morand EF. Macrophage migration inhibitory factor inhibits the antiinflammatory effects of glucocorticoids via glucocorticoid-induced leucine zipper. Arthritis Rheumatol 2014; 66:2059-70. [PMID: 24782327 DOI: 10.1002/art.38689] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Accepted: 04/25/2014] [Indexed: 12/28/2022]
Abstract
OBJECTIVE Glucocorticoids remain a mainstay in the treatment of rheumatoid arthritis (RA). Dose-dependent adverse effects highlight the need for therapies that regulate glucocorticoid sensitivity to enable dosage reduction. Macrophage migration inhibitory factor (MIF) is a proinflammatory protein that has been implicated in the pathogenesis of RA; it impairs glucocorticoid sensitivity via MAPK phosphatase 1 (MKP-1) inhibition. The intracellular protein glucocorticoid-induced leucine zipper (GILZ) mimics the effects of glucocorticoids in models of RA, but whether it represents a target for the modulation of glucocorticoid sensitivity remains unknown. We undertook this study to investigate whether GILZ is involved in the regulation of glucocorticoid sensitivity by MIF. METHODS GILZ expression was studied in the presence and absence of MIF, and the role of GILZ in the MIF-dependent regulation of the glucocorticoid sensitivity mediator MKP-1 was studied at the level of expression and function. RESULTS GILZ expression was significantly inhibited by endogenous MIF, both basally and during responses to glucocorticoid treatment. The effects of MIF on GILZ were dependent on the expression and Akt-induced nuclear translocation of the transcription factor FoxO3A. GILZ was shown to regulate the expression of MKP-1 and consequent MAPK phosphorylation and cytokine release. CONCLUSION MIF exerts its effects on MKP-1 expression and MAPK activity through inhibitory effects on GILZ. These findings suggest a previously unsuspected interaction between MIF and GILZ and identify GILZ as a potential target for the therapeutic regulation of glucocorticoid sensitivity.
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Affiliation(s)
- Huapeng Fan
- Monash University, Clayton, Victoria, Australia
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16
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Hsieh CY, Chen CL, Lin YS, Yeh TM, Tsai TT, Hong MY, Lin CF. Macrophage migration inhibitory factor triggers chemotaxis of CD74+CXCR2+ NKT cells in chemically induced IFN-γ-mediated skin inflammation. THE JOURNAL OF IMMUNOLOGY 2014; 193:3693-703. [PMID: 25172501 DOI: 10.4049/jimmunol.1400692] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
IFN-γ mediates chemically induced skin inflammation; however, the mechanism by which IFN-γ-producing cells are recruited to the sites of inflammation remains undefined. Secretion of macrophage migration inhibitory factor (MIF), a proinflammatory cytokine, from damaged cells may promote immune cell recruitment. We hypothesized that MIF triggers an initial step in the chemotaxis of IFN-γ-producing cells in chemically induced skin inflammation. Using acute and chronic models of 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced skin inflammation in mouse ears, MIF expression was examined, and its role in this process was investigated pharmacologically. The cell populations targeted by MIF, their receptor expression patterns, and the effects of MIF on cell migration were examined. TPA directly caused cytotoxicity accompanied by MIF release in mouse ear epidermal keratinocytes, as well as in human keratinocytic HaCaT cells. Treatment with the MIF antagonist (S,R)-3-(4-hydroxyphenyl)-4,5-dihydro-5-isoxazole acetic acid methyl ester considerably attenuated TPA-induced ear swelling, leukocyte infiltration, epidermal cell proliferation, and dermal angiogenesis. Inhibition of MIF greatly diminished the dermal infiltration of IFN-γ(+) NKT cells, whereas the addition of exogenous TPA and MIF to NKT cells promoted their IFN-γ production and migration, respectively. MIF specifically triggered the chemotaxis of NKT cells via CD74 and CXCR2, and the resulting depletion of NKT cells abolished TPA-induced skin inflammation. In TPA-induced skin inflammation, MIF is released from damaged keratinocytes and then triggers the chemotaxis of CD74(+)CXCR2(+) NKT cells for IFN-γ production.
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Affiliation(s)
- Chia-Yuan Hsieh
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Chia-Ling Chen
- Center of Translational Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Yee-Shin Lin
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 701, Taiwan
| | - Trai-Ming Yeh
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 701, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Tsung-Ting Tsai
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 701, Taiwan
| | - Ming-Yuan Hong
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Chiou-Feng Lin
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Center of Translational Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 701, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
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17
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Barbosa B, Paulesu L, Ietta F, Bechi N, Romagnoli R, Gomes A, Favoreto-Junior S, Silva D, Mineo J, Mineo T, Ferro E. Susceptibility to Toxoplasma gondii proliferation in BeWo human trophoblast cells is dose-dependent of macrophage migration inhibitory factor (MIF), via ERK1/2 phosphorylation and prostaglandin E2 production. Placenta 2014; 35:152-62. [DOI: 10.1016/j.placenta.2013.12.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 12/19/2013] [Accepted: 12/24/2013] [Indexed: 12/21/2022]
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18
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Dexamethasone-conjugated polyethylenimine/MIF siRNA complex regulation of particulate matter-induced airway inflammation. Biomaterials 2013; 34:7453-61. [PMID: 23831186 DOI: 10.1016/j.biomaterials.2013.05.082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 05/24/2013] [Indexed: 01/15/2023]
Abstract
Inhalation of airborne particulate matter (PM), such as silicon dioxide (SiO2) and titanium dioxide (TiO2), induces acute lung inflammation. siRNA therapy has been proposed as a method to repair acute lung inflammation. To determine whether DEXA-PEI/MIF siRNA contributes to SiO2-induced acute lung inflammation repair, we administered Dexa-PEI/MIF siRNA in SiO2-treated Beas-2b cells and instilled DEXA-PEI-MIF siRNA intratracheally in mice with SiO2-induced acute lung inflammation. Using genetic (MIF mRNA RT-PCR), histological (H&E and PAS) and immunohistochemical (MIF and Muc5ac) analyses, we estimated the acute lung inflammation in Beas-2b cells and BALB/c mice. Cells and mice treated with SiO2 particles demonstrated pulmonary inflammation. DEXA-PEI/MIF siRNA restricted the extent of the pulmonary inflammation reaction to SiO2 in cells and mice. In case of SiO2-treated Beas-2b cells, only DEXA-PEI treatment failed to effectively regulate MIF mRNA release. At the same time, only DEXA-PEI treatment adjusted the amount of MIF mRNA to some extent in SiO2-treated BALB/c mice. siRNA treatment did not markedly control MIF mRNA release in mice. We also observed that the amount of MIF mRNA was decreased in cells and mice treated with DEXA-PEI/MIF siRNA. The increase of MIF mRNA markedly increased Muc5ac; in contrast, the decrease of MIF mRNA using DEXA-PEI/MIF siRNA effectively lowered Muc5ac in SiO2-treated cells and mice. These results suggest that DEXA-PEI plays a role in delivering siRNA to the nucleus as a carrier and limits the extent of acute lung inflammation. MIF siRNA also contributed to the reparative lung response in SiO2-induced pulmonary inflammation.
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Macrophage-derived, macrophage migration inhibitory factor (MIF) is necessary to induce disease in the K/BxN serum-induced model of arthritis. Rheumatol Int 2013; 33:2301-8. [PMID: 23503937 DOI: 10.1007/s00296-013-2713-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Accepted: 02/22/2013] [Indexed: 12/31/2022]
Abstract
Rheumatoid arthritis (RA) is characterized by the interaction of multiple mediators, among the most important of which are cytokines. In recent years, extensive studies demonstrate a pivotal role for one cytokine, macrophage migration inhibitory factor (MIF), in fundamental events in innate and adaptive immunity. MIF has now been demonstrated to be involved in the pathogenesis of many diseases, but in the case of RA the evidence for a role of MIF is very strong. MIF is abundantly expressed in the sera of RA patients and in RA synovial tissue correlating with disease activity. MIF-deficient mice were used to induce arthritis by serum transfer from K/BxN mice. K/BxN serum transfer arthritis was markedly attenuated in MIF(-) mice, with reduction in clinical index and histological severity as well as decrease in synovial cytokines. Macrophage transfers were done to investigate the specific role of macrophage-derived MIF. We show that adoptive transfer of wild-type macrophages into MIF(-) mice restores the sensitivity of MIF(-) mice to arthritis development, and this affect was associated with a restoration in serum IL-1β and IL-6 production. These results indicate that MIF plays a critical role in inflammation and joint destruction in K/BxN serum-induced arthritis and that the systemic expression of MIF by a subpopulation of macrophages is necessary and sufficient for the full development of arthritis.
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20
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Upadhyay A, Senyschyn D, Santos L, Gu R, Carroll GJ, Jazayeri JA. K/B×N serum transfer arthritis is delayed and less severe in leukaemia inhibitory factor (LIF)-deficient mice. Clin Exp Immunol 2012; 169:71-8. [PMID: 22774981 DOI: 10.1111/j.1365-2249.2012.04601.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
This study is investigating the role of leukaemia inhibitory factor (LIF) in the development of inflammation and joint damage in the mouse K/B×N serum transfer arthritis model. LIF knock-out (LIF(-/-)) mice were generated by mating heterozygote females (LIF(+/-)) with heterozygote males. Arthritis was induced in 8-20-week-old LIF knock-out mice (LIF(-/-)) by intraperitoneal injection of pooled K/B×N sera (50 µl) on days 0 and 2. Clinical disease was scored daily for 6 days. Safranin-O and haematoxylin-stained sections were scored for synovitis, joint space exudate, cartilage degradation and bone damage. RNA was extracted from ankle joints and used to investigate gene expression levels of tumour necrosis factor (TNF)-α, interleukin (IL)-1, LIF, LIF receptor, oncostatin M (OSM), OSM receptor, IL-6 and their common receptor subunit gp130 by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). The results show that wild-type mice developed severe clinically overt polyarthritis. In contrast, LIF(-/-) mice showed a more than 50% reduction in clinical arthritis severity. Significantly lower histological scores were observed in LIF(-/-) mice compared to wild-type disease controls. LIF(-/-) mice had histopathological scores that were similar to normal healthy mice. IL-6 subfamily cytokine and receptor subunit expression remained unchanged. The expression levels for IL-6 were reduced significantly in all the diseased mice, whether wild-type or LIF(-/-) mice (P < 0·001), compared to healthy wild-type mice. We conclude that LIF contributes to the development of disease in the K/B×N serum transfer model of arthritis. These results provide further evidence for the role of LIF in inflammation and cartilage bone resorption and provide impetus to test the effects of LIF blockade as a therapeutic strategy in rheumatoid arthritis.
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Affiliation(s)
- A Upadhyay
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Parkville, Australia
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21
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Brain miffed by macrophage migration inhibitory factor. Int J Cell Biol 2012; 2012:139573. [PMID: 22973314 PMCID: PMC3438795 DOI: 10.1155/2012/139573] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 07/06/2012] [Accepted: 07/12/2012] [Indexed: 12/31/2022] Open
Abstract
Macrophage migration inhibitory factor (MIF) is a cytokine which also exhibits enzymatic properties like oxidoreductase and tautomerase. MIF plays a pivotal role in innate and acquired immunity as well as in the neuroendocrine axis. Since it is involved in the pathogenesis of acute and chronic inflammation, neoangiogenesis, and cancer, MIF and its signaling components are considered suitable targets for therapeutic intervention in several fields of medicine. In neurodegenerative and neurooncological diseases, MIF is a highly relevant, but still a hardly investigated mediator. MIF operates via intracellular protein-protein interaction as well as in CD74/CXCR2/CXCR4 receptor-mediated pathways to regulate essential cellular systems such as redox balance, HIF-1, and p53-mediated senescence and apoptosis as well as multiple signaling pathways. Acting as an endogenous glucocorticoid antagonist, MIF thus represents a relevant resistance gene in brain tumor therapies. Alongside this dual action, a functional homolog-annotated D-dopachrome tautomerase/MIF-2 has been uncovered utilizing the same cell surface receptor signaling cascade as MIF. Here we review MIF actions with respect to redox regulation in apoptosis and in tumor growth as well as its extracellular function with a focus on its potential role in brain diseases. We consider the possibility of MIF targeting in neurodegenerative processes and brain tumors by novel MIF-neutralizing approaches.
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Merk M, Mitchell RA, Endres S, Bucala R. D-dopachrome tautomerase (D-DT or MIF-2): doubling the MIF cytokine family. Cytokine 2012; 59:10-7. [PMID: 22507380 PMCID: PMC3367028 DOI: 10.1016/j.cyto.2012.03.014] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 03/09/2012] [Accepted: 03/16/2012] [Indexed: 12/12/2022]
Abstract
D-dopachrome tautomerase (D-DT) is a newly described cytokine and a member of the macrophage migration inhibitory factor (MIF) protein superfamily. MIF is a broadly expressed pro-inflammatory cytokine that regulates both the innate and the adaptive immune response. MIF activates the MAP kinase cascade, modulates cell migration, and counter-acts the immunosuppressive effects of glucocorticoids. For many cell types, MIF also acts as an important survival or anti-apoptotic factor. Circulating MIF levels are elevated in the serum in different infectious and autoimmune diseases, and neutralization of the MIF protein via antibodies or small molecule antagonists improves the outcome in numerous animal models of human disease. Recently, a detailed investigation of the biological role of the closely homologous protein D-DT, which is encoded by a gene adjacent to MIF, revealed an overlapping functional spectrum with MIF. The D-DT protein also is present in most tissues and circulates in serum at similar concentrations as MIF. D-DT binds the MIF cell surface receptor complex, CD74/CD44, with high affinity and induces similar cell signaling and effector functions. Furthermore, an analysis of the signaling properties of the two proteins showed that they work cooperatively, and that neutralization of D-DT in vivo significantly decreases inflammation. In this review, we highlight the similarities and differences between MIF and D-DT, which we propose to designate "MIF-2", and discuss the implication of D-DT/MIF-2 expression for MIF-based therapies.
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Affiliation(s)
- Melanie Merk
- Center of Integrated Protein Science Munich, Division of Clinical Pharmacology, LMU Munich, Germany
| | | | - Stefan Endres
- Center of Integrated Protein Science Munich, Division of Clinical Pharmacology, LMU Munich, Germany
| | - Richard Bucala
- Internal Medicine Yale University School of Medicine, New Haven, CT, 06520
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Suppression of antigen-specific T cell responses by the Kaposi's sarcoma-associated herpesvirus viral OX2 protein and its cellular orthologue, CD200. J Virol 2012; 86:6246-57. [PMID: 22491458 DOI: 10.1128/jvi.07168-11] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Regulating appropriate activation of the immune response in the healthy host despite continual immune surveillance dictates that immune responses must be either self-limiting and therefore negatively regulated following their activation or prevented from developing inappropriately. In the case of antigen-specific T cells, their response is attenuated by several mechanisms, including ligation of CTLA-4 and PD-1. Through the study of the viral OX2 (vOX2) immunoregulator encoded by Kaposi's sarcoma-associated herpesvirus (KSHV), we have identified a T cell-attenuating role both for this protein and for CD200, a cellular orthologue of the viral vOX2 protein. In vitro, antigen-presenting cells (APC) expressing either native vOX2 or CD200 suppressed two functions of cognate antigen-specific T cell clones: gamma interferon (IFN-γ) production and mobilization of CD107a, a cytolytic granule component and measure of target cell killing ability. Mechanistically, vOX2 and CD200 expression on APC suppressed the phosphorylation of ERK1/2 mitogen-activated protein kinase in responding T cells. These data provide the first evidence for a role of both KSHV vOX2 and cellular CD200 in the negative regulation of antigen-specific T cell responses. They suggest that KSHV has evolved to harness the host CD200-based mechanism of attenuation of T cell responses to facilitate virus persistence and dissemination within the infected individual. Moreover, our studies define a new paradigm in immune modulation by viruses: the provision of a negative costimulatory signal to T cells by a virus-encoded orthologue of CD200.
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Terrazas CA, Huitron E, Vazquez A, Juarez I, Camacho GM, Calleja EA, Rodriguez-Sosa M. MIF synergizes with Trypanosoma cruzi antigens to promote efficient dendritic cell maturation and IL-12 production via p38 MAPK. Int J Biol Sci 2011; 7:1298-310. [PMID: 22110382 PMCID: PMC3221366 DOI: 10.7150/ijbs.7.1298] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 10/01/2011] [Indexed: 01/30/2023] Open
Abstract
Macrophage migration inhibitory factor (MIF) has been found to be involved in host resistance to several parasitic infections. To determine the mechanisms of the MIF-dependent responses to Trypanosoma cruzi, we investigated host resistance in MIF-/- mice (on the BALB/c background) during an intraperitoneal infection. We focused on the potential involvement of MIF in dendritic cell (DC) maturation and cytokine production. Following a challenge with 5 x 103T. cruzi parasites, wild type (WT) mice developed a strong IL-12 response and adequate maturation of the draining mesenteric lymph node DCs and were resistant to infection. In contrast, similarly infected MIF-/- mice mounted a weak IL-12 response, displayed immature DCs in the early phases of infection and rapidly succumbed to T. cruzi infection. The lack of maturation and IL-12 production by the DCs in response to total T. cruzi antigen (TcAg) was confirmed by in vitro studies. These effects were reversed following treatment with recombinant MIF. Interestingly, TcAg-stimulated bone marrow-derived DCs from both WT and MIF-/- mice had increased ERK1/2 MAPK phosphorylation. In contrast, p38 phosphorylation was only upregulated in WT DCs. Reconstitution of MIF to MIF-/- DCs upregulated p38 phosphorylation. The MIF-p38 pathway affected MHC-II and CD86 expression as well as IL-12 production. These findings demonstrate that the MIF-induced early DC maturation and IL-12 production mediates resistance to T. cruzi infection, probably by activating the p38 pathway.
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Affiliation(s)
- Cesar A Terrazas
- Unidad de Biomedicina, Facultad de Estudios Superiores-Iztacala, Universidad Nacional Autónoma de México-UNAM, C. P. 54090 Estado de México, Mexico
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Nothnick WB, Colvin A, Cheng KF, Al-Abed Y. Inhibition of macrophage migration inhibitory factor reduces endometriotic implant size in mice with experimentally induced disease. JOURNAL OF ENDOMETRIOSIS 2011; 3:135-142. [PMID: 24790725 PMCID: PMC4002052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Endometriosis is a debilitating disease common in women of reproductive age characterized by pain and infertility. Macrophage migration inhibitory factor (MIF) is a cytokine whose expression is elevated in endometriotic tissue from women with the disease but the functional role of this factor in the pathogenesis of the disease is uncertain. To examine the role of MIF in the pathogenesis of endometriosis, we induced experimental disease in mice and examined the ability of the MIF antagonist, ISO-1, to reduce endometriotic implant size. Administration of ISO-1 resulted in a significant reduction in implant size and vascularity (as assessed by Flk1 mRNA expression) which was not associated with an alteration in the reproductive cycle. These data suggest that inhibition of MIF activity is associated with a significant reduction in endometriotic implant size and leads us to speculate that a similar approach of targeting MIF may prove useful in treating endometriosis in humans.
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Affiliation(s)
- Warren B. Nothnick
- Department of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City
| | - Arlene Colvin
- Department of Obstetrics and Gynecology, University of Kansas Medical Center, Kansas City
| | - Kai Fan Cheng
- Department of Kansas and Laboratory of Medicinal Chemistry, Feinstein Institute for Medical Research, Manhasset, New York, United States of America
| | - Yousef Al-Abed
- Department of Kansas and Laboratory of Medicinal Chemistry, Feinstein Institute for Medical Research, Manhasset, New York, United States of America
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Santos LL, Fan H, Hall P, Ngo D, Mackay CR, Fingerle-Rowson G, Bucala R, Hickey MJ, Morand EF. Macrophage migration inhibitory factor regulates neutrophil chemotactic responses in inflammatory arthritis in mice. ACTA ACUST UNITED AC 2011; 63:960-70. [PMID: 21452319 DOI: 10.1002/art.30203] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Macrophage migration inhibitory factor (MIF) facilitates multiple aspects of inflammatory arthritis, the pathogenesis of which has been significantly linked to the activity of neutrophils. The effects of MIF on neutrophil recruitment are unknown. This study was undertaken to investigate the contribution of MIF to the regulation of neutrophil chemotactic responses. METHODS K/BxN serum-transfer arthritis was induced in wild-type (WT), MIF(-/-) , and monocyte chemotactic protein 1 (MCP-1; CCL2)-deficient mice as well as in WT mice treated with monoclonal antibodies to cytokine-induced neutrophil chemoattractant (anti-KC). Leukocyte trafficking in vivo was examined using intravital microscopy, and neutrophil function in vitro was examined using migration chambers and assessment of MAP kinase activation. RESULTS K/BxN serum-transfer arthritis was markedly attenuated in MIF(-/-) mice, with reductions in the clinical and histologic severity of arthritis and the synovial expression of KC and interleukin-1. Arthritis was also reduced by anti-KC antibody treatment, but not in MCP-1-deficient mice. In vivo, neutrophil recruitment responses to KC were reduced in MIF(-/-) mice. Similarly, MIF(-/-) mouse neutrophils exhibited reduced chemotactic responses to KC in vitro, despite displaying unaltered chemokine receptor expression. Reduced chemotactic responses of MIF(-/-) mouse neutrophils were associated with reduced phosphorylation of p38 and ERK MAP kinases. CONCLUSION These findings suggest that MIF promotes neutrophil trafficking in inflammatory arthritis via facilitation of chemokine-induced migratory responses and MAP kinase activation. Therapeutic MIF inhibition could limit synovial neutrophil recruitment.
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Fan H, Hall P, Santos LL, Gregory JL, Fingerle-Rowson G, Bucala R, Morand EF, Hickey MJ. Macrophage migration inhibitory factor and CD74 regulate macrophage chemotactic responses via MAPK and Rho GTPase. THE JOURNAL OF IMMUNOLOGY 2011; 186:4915-24. [PMID: 21411731 DOI: 10.4049/jimmunol.1003713] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Macrophage migration inhibitory factor (MIF) promotes leukocyte recruitment to sites of inflammation. However, whether this stems from a direct effect on leukocyte migration is unknown. Furthermore, the role of the MIF-binding protein CD74 in this response has not been investigated. Therefore, the aim of this study was to examine the contributions of MIF and CD74 to chemokine-induced macrophage recruitment. Intravital microscopy studies demonstrated that CCL2-induced leukocyte adhesion and transmigration were reduced in MIF(-/-) and CD74(-/-) mice. MIF(-/-) and CD74(-/-) macrophages also exhibited reduced chemotaxis in vitro, although CD74(-/-) macrophages showed increased chemokinesis. Reduced CCL2-induced migration was associated with attenuated MAPK phosphorylation, RhoA GTPase activity, and actin polymerization in MIF(-/-) and CD74(-/-) macrophages. Furthermore, in MIF(-/-) macrophages, MAPK phosphatase-1 was expressed at elevated levels, providing a potential mechanism for the reduction in MAPK phosphorylation in MIF-deficient cells. No increase in MAPK phosphatase-1 expression was observed in CD74(-/-) macrophages. In in vivo experiments assessing the link between MIF and CD74, combined administration of MIF and CCL2 increased leukocyte adhesion in both MIF(-/-) and CD74(-/-) mice, showing that CD74 was not required for this MIF-induced response. Additionally, although leukocyte recruitment induced by administration of MIF alone was reduced in CD74(-/-) mice, consistent with a role for CD74 in leukocyte recruitment induced by MIF, MIF-treated CD74(-/-) mice displayed residual leukocyte recruitment. These data demonstrate that MIF and CD74 play previously unappreciated roles in CCL2-induced macrophage adhesion and migration, and they indicate that MIF and CD74 mediate this effect via both common and independent mechanisms.
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Affiliation(s)
- Huapeng Fan
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Monash Medical Centre, Clayton, Victoria 3168, Australia
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Xie L, Qiao X, Wu Y, Tang J. β-Arrestin1 mediates the endocytosis and functions of macrophage migration inhibitory factor. PLoS One 2011; 6:e16428. [PMID: 21283538 PMCID: PMC3026819 DOI: 10.1371/journal.pone.0016428] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Accepted: 12/16/2010] [Indexed: 12/21/2022] Open
Abstract
Macrophage migration inhibitory factor (MIF) is a pleiotropic cytokine, regulating inflammatory and immune responses. MIF binds to cell surface receptor CD74, resulting in both rapid and sustained ERK activation. It was reported that MIF-induced rapid ERK activation requires its co-receptor CD44. But the exact mechanism underlying sustained ERK activation is not well understood. In the current study, we described a detailed mechanism of MIF mediated sustained ERK activation. We found that β-arrestin1, a scaffold protein involved in the activation of the MAPK cascade, interacts with CD74 upon MIF stimulation, resulting in CD74-mediated MIF endocytosis in a chlorpromazine (CPZ)-sensitive manner. β-arrestin1 is also involved in endocytotic MIF signaling, leading to sustained ERK activation. Therefore β-arrestin1 plays a central role in coupling MIF endocytosis to sustained ERK activation.
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Affiliation(s)
- Lishi Xie
- Center for Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
- Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xiaohang Qiao
- Center for Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
- Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yanfang Wu
- Center for Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jie Tang
- Center for Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
- * E-mail:
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The rheumatoid joint. Rheumatology (Oxford) 2011. [DOI: 10.1016/b978-0-323-06551-1.00091-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Beaulieu E, Green L, Elsby L, Alourfi Z, Morand EF, Ray DW, Donn R. Identification of a novel cell type-specific intronic enhancer of macrophage migration inhibitory factor (MIF) and its regulation by mithramycin. Clin Exp Immunol 2010; 163:178-88. [PMID: 21087445 PMCID: PMC3043308 DOI: 10.1111/j.1365-2249.2010.04289.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The aim of this study was to determine the genetic regulation of macrophage migration inhibitory factor (MIF). DNase I hypersensitivity was used to identify potential hypersensitive sites (HS) across the MIF gene locus. Reporter gene assays were performed in different human cell lines with constructs containing the native or mutated HS element. Following phylogenetic and transcription factor binding profiling, electrophoretic mobility shift assay (EMSA) and RNA interference were performed and the effects of incubation with mithramycin, an antibiotic that binds GC boxes, were also studied. An HS centred on the first intron of MIF was identified. The HS acted as an enhancer in human T lymphoblasts (CEMC7A), human embryonic kidney cells (HEK293T) and human monocytic cells (THP-1), but not in a fibroblast-like synoviocyte (FLS) cell line (SW982) or cultured FLS derived from rheumatoid arthritis (RA) patients. Two cis-elements within the first intron were found to be responsible for the enhancer activity. Mutation of the consensus Sp1 GC box on each cis-element abrogated enhancer activity and EMSA indicated Sp1 binding to one of the cis-elements contained in the intron. SiRNA knock-down of Sp1 alone or Sp1 and Sp3 together was incomplete and did not alter the enhancer activity. Mithramycin inhibited expression of MIF in CEMC7A cells. This effect was specific to the intronic enhancer and was not seen on the MIF promoter. These results identify a novel, cell type-specific enhancer of MIF. The enhancer appears to be driven by Sp1 or related Sp family members and is highly sensitive to inhibition via mithramycin.
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Ralph JA, Ahmed AU, Santos LL, Clark AR, McMorrow J, Murphy EP, Morand EF. Identification of NURR1 as a mediator of MIF signaling during chronic arthritis: effects on glucocorticoid-induced MKP1. THE AMERICAN JOURNAL OF PATHOLOGY 2010. [PMID: 20829434 DOI: 10.2353/ajpath.2010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Elucidation of factors regulating glucocorticoid (GC) sensitivity is required for the development of "steroid-sparing" therapies for chronic inflammatory diseases, including rheumatoid arthritis (RA). Accumulating evidence suggests that macrophage migration inhibitory factor (MIF) counterregulates the GC-induction of anti-inflammatory mediators, including mitogen-activated protein kinase phosphatase 1 (MKP1), a critical mitogen-activated protein kinase signaling inhibitor. This observation has yet to be extended to human disease; the molecular mechanisms remain unknown. We investigated NURR1, a GC-responsive transcription factor overexpressed in RA, as a MIF signaling target. We reveal abrogation by recombinant MIF (rMIF) of GC-induced MKP1 expression in RA fibroblast-like synoviocytes (FLS). rMIF enhanced NURR1 expression, artificial NBRE (orphan receptor DNA-binding site) reporter transactivation, and reversed GC-inhibition of NURR1. NURR1 expression was reduced during experimental arthritis in MIF-/- synovium, and silencing MIF reduced RA FLS NURR1 mRNA. Consistent with NBRE identification on the MKP1 gene, MKP1 mRNA was reduced in FLS that ectopically express NURR1, and silencing NURR1 enhanced MKP1 mRNA in RA FLS. rMIF enhanced NBRE binding on the MKP1 gene, and the absence of the NBRE prevented NURR1-repressive effects on basal and GC-induced MKP1 transactivation. This study defines NURR1 as a novel MIF target in chronic inflammation and demonstrates a role for NURR1 in regulating the anti-inflammatory mediator, MKP1. We propose a MIF-NURR1 signaling axis as a regulator of the GC sensitivity of MKP1.
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Affiliation(s)
- Jennifer A Ralph
- Centre for Inflammatory Diseases, Monash University, Department of Medicine, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne 3168, Australia
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Ralph JA, Ahmed AU, Santos LL, Clark AR, McMorrow J, Murphy EP, Morand EF. Identification of NURR1 as a mediator of MIF signaling during chronic arthritis: effects on glucocorticoid-induced MKP1. THE AMERICAN JOURNAL OF PATHOLOGY 2010. [PMID: 20829434 DOI: 10.2353/ajpath.2010.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Elucidation of factors regulating glucocorticoid (GC) sensitivity is required for the development of "steroid-sparing" therapies for chronic inflammatory diseases, including rheumatoid arthritis (RA). Accumulating evidence suggests that macrophage migration inhibitory factor (MIF) counterregulates the GC-induction of anti-inflammatory mediators, including mitogen-activated protein kinase phosphatase 1 (MKP1), a critical mitogen-activated protein kinase signaling inhibitor. This observation has yet to be extended to human disease; the molecular mechanisms remain unknown. We investigated NURR1, a GC-responsive transcription factor overexpressed in RA, as a MIF signaling target. We reveal abrogation by recombinant MIF (rMIF) of GC-induced MKP1 expression in RA fibroblast-like synoviocytes (FLS). rMIF enhanced NURR1 expression, artificial NBRE (orphan receptor DNA-binding site) reporter transactivation, and reversed GC-inhibition of NURR1. NURR1 expression was reduced during experimental arthritis in MIF-/- synovium, and silencing MIF reduced RA FLS NURR1 mRNA. Consistent with NBRE identification on the MKP1 gene, MKP1 mRNA was reduced in FLS that ectopically express NURR1, and silencing NURR1 enhanced MKP1 mRNA in RA FLS. rMIF enhanced NBRE binding on the MKP1 gene, and the absence of the NBRE prevented NURR1-repressive effects on basal and GC-induced MKP1 transactivation. This study defines NURR1 as a novel MIF target in chronic inflammation and demonstrates a role for NURR1 in regulating the anti-inflammatory mediator, MKP1. We propose a MIF-NURR1 signaling axis as a regulator of the GC sensitivity of MKP1.
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Affiliation(s)
- Jennifer A Ralph
- Centre for Inflammatory Diseases, Monash University, Department of Medicine, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne 3168, Australia
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Ralph JA, Ahmed AU, Santos LL, Clark AR, McMorrow J, Murphy EP, Morand EF. Identification of NURR1 as a mediator of MIF signaling during chronic arthritis: effects on glucocorticoid-induced MKP1. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 177:2366-78. [PMID: 20829434 DOI: 10.2353/ajpath.2010.091204] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Elucidation of factors regulating glucocorticoid (GC) sensitivity is required for the development of "steroid-sparing" therapies for chronic inflammatory diseases, including rheumatoid arthritis (RA). Accumulating evidence suggests that macrophage migration inhibitory factor (MIF) counterregulates the GC-induction of anti-inflammatory mediators, including mitogen-activated protein kinase phosphatase 1 (MKP1), a critical mitogen-activated protein kinase signaling inhibitor. This observation has yet to be extended to human disease; the molecular mechanisms remain unknown. We investigated NURR1, a GC-responsive transcription factor overexpressed in RA, as a MIF signaling target. We reveal abrogation by recombinant MIF (rMIF) of GC-induced MKP1 expression in RA fibroblast-like synoviocytes (FLS). rMIF enhanced NURR1 expression, artificial NBRE (orphan receptor DNA-binding site) reporter transactivation, and reversed GC-inhibition of NURR1. NURR1 expression was reduced during experimental arthritis in MIF-/- synovium, and silencing MIF reduced RA FLS NURR1 mRNA. Consistent with NBRE identification on the MKP1 gene, MKP1 mRNA was reduced in FLS that ectopically express NURR1, and silencing NURR1 enhanced MKP1 mRNA in RA FLS. rMIF enhanced NBRE binding on the MKP1 gene, and the absence of the NBRE prevented NURR1-repressive effects on basal and GC-induced MKP1 transactivation. This study defines NURR1 as a novel MIF target in chronic inflammation and demonstrates a role for NURR1 in regulating the anti-inflammatory mediator, MKP1. We propose a MIF-NURR1 signaling axis as a regulator of the GC sensitivity of MKP1.
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Affiliation(s)
- Jennifer A Ralph
- Centre for Inflammatory Diseases, Monash University, Department of Medicine, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne 3168, Australia
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Cheng Q, McKeown SJ, Santos L, Santiago FS, Khachigian LM, Morand EF, Hickey MJ. Macrophage migration inhibitory factor increases leukocyte-endothelial interactions in human endothelial cells via promotion of expression of adhesion molecules. THE JOURNAL OF IMMUNOLOGY 2010; 185:1238-47. [PMID: 20554956 DOI: 10.4049/jimmunol.0904104] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Macrophage migration inhibitory factor (MIF) has been shown to promote leukocyte-endothelial cell interactions, although whether this occurs via an effect on endothelial cell function remains unclear. Therefore, the aims of this study were to examine the ability of MIF expressed by endothelial cells to promote leukocyte adhesion and to investigate the effect of exogenous MIF on leukocyte-endothelial interactions. Using small interfering RNA to inhibit HUVEC MIF production, we found that MIF deficiency reduced the ability of TNF-stimulated HUVECs to support leukocyte rolling and adhesion under flow conditions. These reductions were associated with decreased expression of E-selectin, ICAM-1, VCAM-1, IL-8, and MCP-1. Inhibition of p38 MAPK had a similar effect on adhesion molecule expression, and p38 MAPK activation was reduced in MIF-deficient HUVECs, suggesting that MIF mediated these effects via promotion of p38 MAPK activation. In experiments examining the effect of exogenous MIF, application of MIF to resting HUVECs failed to induce leukocyte rolling and adhesion, whereas addition of MIF to TNF-treated HUVECs increased these interactions. This increase was independent of alterations in TNF-induced expression of E-selectin, VCAM-1, and ICAM-1. However, combined treatment with MIF and TNF induced de novo expression of P-selectin, which contributed to leukocyte rolling. In summary, these experiments reveal that endothelial cell-expressed MIF and exogenous MIF promote endothelial adhesive function via different pathways. Endogenous MIF promotes leukocyte recruitment via effects on endothelial expression of several adhesion molecules and chemokines, whereas exogenous MIF facilitates leukocyte recruitment induced by TNF by promoting endothelial P-selectin expression.
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Affiliation(s)
- Qiang Cheng
- Department of Medicine, Monash Medical Centre, Centre for Inflammatory Diseases, Monash University, Clayton, Victoria, Australia
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Full LE, Monaco C. Targeting Inflammation as a Therapeutic Strategy in Accelerated Atherosclerosis in Rheumatoid Arthritis. Cardiovasc Ther 2010; 29:231-42. [DOI: 10.1111/j.1755-5922.2010.00159.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Barrilleaux BL, Fischer-Valuck BW, Gilliam JK, Phinney DG, O'Connor KC. Activation of CD74 inhibits migration of human mesenchymal stem cells. In Vitro Cell Dev Biol Anim 2010; 46:566-72. [PMID: 20198449 DOI: 10.1007/s11626-010-9279-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 01/14/2010] [Indexed: 01/01/2023]
Abstract
Therapeutic administration of mesenchymal stem cells (MSCs) by systemic delivery utilizes the innate ability of the cells to home to damaged tissues, but it can be an inefficient process due to a limited knowledge of cellular cues that regulate migration and homing. Our lab recently discovered that a potent pro-inflammatory cytokine, macrophage migration inhibitory factor (MIF), inhibits MSC migration. Because MIF may act on multiple cellular targets, an activating antibody (CD74Ab) was employed in this study to examine the effect of one MIF receptor, CD74 (major histocompatibility complex class II-associated invariant chain), on MSC motility. CD74 activation inhibits in a dose-dependent manner up to 90% of in vitro migration of MSCs at 40 mug/ml CD74Ab (p < 0.001), with consistent effects observed among three MSC donor preparations. A blocking peptide from the C-terminus of CD74 eliminates the effect of CD74Ab on MSCs. This suggests that MIF may act on MSCs, at least in part, through CD74. Late-passage MSCs exhibit less chemokinesis than those at passage 2. However, MSCs remain responsive to CD74 activation during ex vivo expansion: MSC migration is inhibited approximately 2-fold in the presence of 5 microg/ml CD74Ab at passage 9 vs. approximately 3-fold at passage 2 (p < 0.001). Consistent with this result, there were no significant differences in CD74 expression at all tested passages or after CD74Ab exposure. Targeting CD74 to regulate migration and homing potentially may be a useful strategy to improve the efficacy of a variety of MSC therapies, including those that require ex vivo expansion.
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Affiliation(s)
- Bonnie L Barrilleaux
- Department of Chemical and Biomolecular Engineering, Tulane University, Lindy Boggs Center Room 300, New Orleans, LA 70118, USA
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Brown KK, Blaikie FH, Smith RAJ, Tyndall JDA, Lue H, Bernhagen J, Winterbourn CC, Hampton MB. Direct modification of the proinflammatory cytokine macrophage migration inhibitory factor by dietary isothiocyanates. J Biol Chem 2009; 284:32425-33. [PMID: 19776019 PMCID: PMC2781657 DOI: 10.1074/jbc.m109.047092] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Revised: 09/14/2009] [Indexed: 11/06/2022] Open
Abstract
Isothiocyanates are a class of phytochemicals with widely reported anti-cancer and anti-inflammatory activity. However, knowledge of their activity at a molecular level is limited. The objective of this study was to identify biological targets of phenethyl isothiocyanate (PEITC) using an affinity purification approach. An analogue of PEITC was synthesized to enable conjugation to a solid-phase resin. The pleiotropic cytokine macrophage migration inhibitory factor (MIF) was the major protein captured from cell lysates. Site-directed mutagenesis and mass spectrometry showed that PEITC covalently modified the N-terminal proline residue of MIF. This resulted in complete loss of catalytic tautomerase activity and disruption of protein conformation, as determined by impaired recognition by a monoclonal antibody directed to the region that receptors and interacting proteins bind to MIF. The conformational change was supported by in silico modeling. Monoclonal antibody binding to plasma MIF was disrupted in humans consuming watercress, a major dietary source of PEITC. The isothiocyanates have significant potential for development as MIF inhibitors, and this activity may contribute to the biological properties of these phytochemicals.
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Affiliation(s)
- Kristin K. Brown
- From the
Free Radical Research Group, Department of Pathology, University of Otago, Christchurch 8140, New Zealand
| | | | | | - Joel D. A. Tyndall
- the
National School of Pharmacy, University of Otago, Dunedin 9054, New Zealand, and
| | - Hongqi Lue
- the
Department of Biochemistry and Molecular Cell Biology, Institute of Biochemistry and Molecular Biology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen 52074, Germany
| | - Jürgen Bernhagen
- the
Department of Biochemistry and Molecular Cell Biology, Institute of Biochemistry and Molecular Biology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen 52074, Germany
| | - Christine C. Winterbourn
- From the
Free Radical Research Group, Department of Pathology, University of Otago, Christchurch 8140, New Zealand
| | - Mark B. Hampton
- From the
Free Radical Research Group, Department of Pathology, University of Otago, Christchurch 8140, New Zealand
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Elsby LM, Donn R, Alourfi Z, Green LM, Beaulieu E, Ray DW. Hypoxia and glucocorticoid signaling converge to regulate macrophage migration inhibitory factor gene expression. ACTA ACUST UNITED AC 2009; 60:2220-31. [PMID: 19644855 DOI: 10.1002/art.24659] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Macrophage migration inhibitory factor (MIF) is a proinflammatory mediator involved in the pathogenesis of rheumatoid arthritis. This study was undertaken to identify the MIF promoter elements responsible for regulating gene expression. METHODS Luciferase reporter gene assays were used to identify the MIF promoter sequence responsible for basal activity. Bioinformatic analysis was used to predict transcription factor binding sites, and electrophoretic mobility shift assay (EMSA) was used to demonstrate transcription factor binding. Chromatin immunoprecipitation (ChIP) was used to demonstrate transcription factor loading on the MIF promoter. RESULTS We identified the minimal promoter sequence required for basal MIF promoter activity that was also capable of conferring glucocorticoid-dependent inhibition in a T lymphocyte model cell line. Deletion studies and EMSA revealed 2 elements in the MIF promoter that were responsible for basal promoter activity. The 5' element binds CREB/activating transcription factor 1, and the 3' element is a functional hypoxia-responsive element binding hypoxia-inducible factor 1alpha. Further studies demonstrated that the cis elements are both required for glucocorticoid-dependent inhibition. ChIP demonstrated glucocorticoid-dependent recruitment of glucocorticoid receptor alpha to the MIF promoter in lymphocytes within 1 hour of treatment and a concomitant decrease in acetylated histone H3. CONCLUSION Our findings indicate that hypoxia and glucocorticoid signaling converge on a single element regulating MIF; this regulatory unit is a potential interacting node for microenvironment sensing of oxygen tension and glucocorticoid action in foci of inflammation.
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Galligan CL, Siebert JC, Siminovitch KA, Keystone EC, Bykerk V, Perez OD, Fish EN. Multiparameter phospho-flow analysis of lymphocytes in early rheumatoid arthritis: implications for diagnosis and monitoring drug therapy. PLoS One 2009; 4:e6703. [PMID: 19693272 PMCID: PMC2724743 DOI: 10.1371/journal.pone.0006703] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Accepted: 07/06/2009] [Indexed: 11/24/2022] Open
Abstract
Background The precise mechanisms involved in the initiation and progression of rheumatoid arthritis (RA) are not known. Early stages of RA often have non-specific symptoms, delaying diagnosis and therapy. Additionally, there are currently no established means to predict clinical responsiveness to therapy. Immune cell activation is a critical component therefore we examined the cellular activation of peripheral blood mononuclear cells (PBMCs) in the early stages of RA, in order to develop a novel diagnostic modality. Methods and Findings PBMCs were isolated from individuals diagnosed with early RA (ERA) (n = 38), longstanding RA (n = 10), osteoarthritis (OA) (n = 19) and from healthy individuals (n = 10). PBMCs were examined for activation of 15 signaling effectors, using phosphorylation status as a measure of activation in immunophenotyped cells, by flow cytometry (phospho-flow). CD3+CD4+, CD3+CD8+ and CD20+ cells isolated from patients with ERA, RA and OA exhibited activation of multiple phospho-epitopes. ERA patient PBMCs showed a bias towards phosphorylation-activation in the CD4+ and CD20+ compartments compared to OA PBMCs, where phospho-activation was primarily observed in CD8+ cells. The ratio of phospho (p)-AKT/p-p38 was significantly elevated in patients with ERA and may have diagnostic potential. The mean fluorescent intensity (MFI) levels for p-AKT and p-H3 in CD4+, CD8+ and CD20+ T cells correlated directly with physician global assessment scores (MDGA) and DAS (disease activity score). Stratification by medications revealed that patients receiving leflunomide, systemic steroids or anti-TNF therapy had significant reductions in phospho-specific activation compared with patients not receiving these therapies. Correlative trends between medication-associated reductions in the levels of phosphorylation of specific signaling effectors and lower disease activity were observed. Conclusions Phospho-flow analysis identified phosphorylation-activation of specific signaling effectors in the PB from patients with ERA. Notably, phosphorylation of these signaling effectors did not distinguish ERA from late RA, suggesting that the activation status of discrete cell populations is already established early in disease. However, when the ratio of MFI values for p-AKT and p-p38 is >1.5, there is a high likelihood of having a diagnosis of RA. Our results suggest that longitudinal sampling of patients undergoing therapy may result in phospho-signatures that are predictive of drug responsiveness.
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Affiliation(s)
- Carole L. Galligan
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Janet C. Siebert
- CytoAnalytics, Analytical Services, Denver, Colorado, United States of America
| | - Katherine A. Siminovitch
- Mount Sinai Hospital Samuel Lunenfeld and Toronto Hospital Research Institutes, Toronto, Ontario, Canada
| | - Edward C. Keystone
- University of Toronto and Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Vivian Bykerk
- University of Toronto and Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Omar D. Perez
- The Baxter Laboratory for Genetic Pharmacology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Eleanor N. Fish
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
- * E-mail:
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Rendon BE, Willer SS, Zundel W, Mitchell RA. Mechanisms of macrophage migration inhibitory factor (MIF)-dependent tumor microenvironmental adaptation. Exp Mol Pathol 2009; 86:180-5. [PMID: 19186177 DOI: 10.1016/j.yexmp.2009.01.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Indexed: 01/08/2023]
Abstract
Since its activity was first reported in the mid-1960s, macrophage migration inhibitory factor (MIF) has gone from a cytokine activity modulating monocyte motility to a pleiotropic regulator of a vast array of cellular and biological processes. Studies in recent years suggest that MIF contributes to malignant disease progression on several different levels. Both circulating and intracellular MIF protein levels are elevated in cancer patients and MIF expression reportedly correlates with stage, metastatic spread and disease-free survival. Additionally, MIF expression positively correlates with angiogenic growth factor expression, microvessel density and tumor-associated neovascularization. Not coincidentally, MIF has recently been shown to contribute to tumoral hypoxic adaptation by promoting hypoxia-induced HIF-1alpha stabilization. Intriguingly, hypoxia is a strong regulator of MIF expression and secretion, suggesting that hypoxia-induced MIF acts as an amplifying factor for both hypoxia and normoxia-associated angiogenic growth factor expression in human malignancies. Combined, these findings suggest that MIF overexpression contributes to tumoral hypoxic adaptation and, by extension, therapeutic responsiveness and disease prognosis. This review summarizes recent literature on the contributions of MIF to tumor-associated angiogenic growth factor expression, neovascularization and hypoxic adaptation. We also will review recent efforts aimed at identifying and employing small-molecule antagonists of MIF as a novel approach to cancer therapeutics.
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Affiliation(s)
- Beatriz E Rendon
- JG Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
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Schurigt U, Pfirschke C, Irmler IM, Hückel M, Gajda M, Janik T, Baumgrass R, Bernhagen J, Bräuer R. Interactions of T helper cells with fibroblast-like synoviocytes: up-regulation of matrix metalloproteinases by macrophage migration inhibitory factor from both Th1 and Th2 cells. ACTA ACUST UNITED AC 2008; 58:3030-40. [PMID: 18821693 DOI: 10.1002/art.23904] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Interactions of immune cells, such as activated T helper cells, with fibroblast-like synoviocytes (FLS) play a crucial role in the joint destruction during human rheumatoid arthritis (RA). This study was undertaken to investigate the expression of the proinflammatory cytokine macrophage migration inhibitory factor (MIF) by T helper cells, and to assess the role of MIF in overexpression of matrix metalloproteinases (MMPs) in cocultures of FLS from arthritic mice with either Th1 or Th2 cells. METHODS MIF expression by in vitro-polarized murine Th1 and Th2 cells was determined using 2 different generation protocols. FLS were isolated from the inflamed joints of mice with antigen-induced arthritis. MMP expression was analyzed in cocultures of the FLS with T helper cell subsets. Effects of MIF were blocked by a neutralizing anti-MIF antibody. In addition, analyses were performed on cocultures of either Th1 or Th2 cells with FLS from MIF-deficient mice. RESULTS Both Th1 and Th2 cells expressed high quantities of MIF. MMPs were overexpressed by FLS after coculture with both Th1 and Th2 cells. Activated T helper cells were more effective than resting cells. Neutralization of MIF by an anti-MIF antibody led to a marked reduction in MMP expression in Th1- and Th2-stimulated FLS. T helper cells generated from MIF-deficient mice exhibited a T helper cell-specific cytokine profile comparable with that in wild-type cells, except in the expression of MIF, but showed an impaired ability to stimulate MMP expression in FLS. CONCLUSION MIF is an important Th1 and Th2 cell-derived proinflammatory cytokine that stimulates MMP expression in FLS from arthritic mice, and therefore inhibition of MIF might be a promising target for novel therapeutic strategies in human RA.
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Santos LL, Morand EF. Macrophage migration inhibitory factor: a key cytokine in RA, SLE and atherosclerosis. Clin Chim Acta 2008; 399:1-7. [PMID: 18838066 DOI: 10.1016/j.cca.2008.09.014] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 09/12/2008] [Accepted: 09/12/2008] [Indexed: 10/21/2022]
Abstract
Originally discovered and named as an in vitro inhibitor of macrophage migration, the cytokine macrophage migration inhibitory factor (MIF) has now been shown to be a key regulator of acute and chronic immuno-inflammatory conditions including rheumatoid arthritis (RA), atherosclerosis, and more recently systemic lupus erythematosus (SLE). Common inflammatory events in these diseases include activation of cells and infiltration by immune cells at the site of injury. MIF actively participates in multiple stages of the inflammatory response, acting on cells directly and/or potentiating the effects entrained by other stimuli. The overlap of inflammatory processes operating in these diseases, the known activities of MIF, and the observation of atherosclerosis as a major comorbidity of RA and SLE, make MIF a strong candidate for therapeutic targeting in these diseases. Moreover, the unique relationship between MIF and glucocorticoids, commonly used in the treatment of RA and SLE but associated with significant side effects, highlights the potential of MIF as a 'steroid sparing' therapeutic target encompassing all three conditions.
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Affiliation(s)
- Leilani L Santos
- Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, 246 Clayton Road, Clayton, VIC 3168, Australia
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MIF in autoimmunity and novel therapeutic approaches. Autoimmun Rev 2008; 8:244-9. [PMID: 18721909 DOI: 10.1016/j.autrev.2008.07.037] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2008] [Accepted: 07/29/2008] [Indexed: 11/23/2022]
Abstract
Macrophage migration inhibitory factor (MIF) is a multipotent cytokine implicated in the pathogenesis of numerous inflammatory and autoimmune disorders. Since anti-cytokine therapy is considered to be a promising therapeutic strategy, selective targeting of MIF with either anti-MIF antibody or specific chemical MIF inhibitors might offer new therapeutic avenues for these disorders. Considering the unique relationship between MIF and glucocorticoids, therapeutic antagonism of MIF could also represent an effective approach for steroid-sparing therapies in patients with refractory autoimmune diseases.
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