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Bilski J, Schramm-Luc A, Szczepanik M, Mazur-Biały AI, Bonior J, Luc K, Zawojska K, Szklarczyk J. Adipokines in Rheumatoid Arthritis: Emerging Biomarkers and Therapeutic Targets. Biomedicines 2023; 11:2998. [PMID: 38001998 PMCID: PMC10669400 DOI: 10.3390/biomedicines11112998] [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: 10/22/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease manifested by joint involvement, extra-articular manifestations, and general symptoms. Adipose tissue, previously perceived as an inert energy storage organ, has been recognised as a significant contributor to RA pathophysiology. Adipokines modulate immune responses, inflammation, and metabolic pathways in RA. Although most adipokines have a pro-inflammatory and aggravating effect on RA, some could counteract this pathological process. The coexistence of RA and sarcopenic obesity (SO) has gained attention due to its impact on disease severity and outcomes. Sarcopenic obesity further contributes to the inflammatory milieu and metabolic disturbances. Recent research has highlighted the intricate crosstalk between adipose tissue and skeletal muscle, suggesting potential interactions between these tissues in RA. This review summarizes the roles of adipokines in RA, particularly in inflammation, immune modulation, and joint destruction. In addition, it explores the emerging role of adipomyokines, specifically irisin and myostatin, in the pathogenesis of RA and their potential as therapeutic targets. We discuss the therapeutic implications of targeting adipokines and adipomyokines in RA management and highlight the challenges and future directions for research in this field.
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Affiliation(s)
- Jan Bilski
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-008 Krakow, Poland; (A.I.M.-B.); (K.Z.)
| | - Agata Schramm-Luc
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland; (A.S.-L.); (K.L.)
| | - Marian Szczepanik
- Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-034 Krakow, Poland;
| | - Agnieszka Irena Mazur-Biały
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-008 Krakow, Poland; (A.I.M.-B.); (K.Z.)
| | - Joanna Bonior
- Department of Medical Physiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-126 Krakow, Poland; (J.B.); (J.S.)
| | - Kevin Luc
- Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Krakow, Poland; (A.S.-L.); (K.L.)
| | - Klaudia Zawojska
- Department of Biomechanics and Kinesiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-008 Krakow, Poland; (A.I.M.-B.); (K.Z.)
| | - Joanna Szklarczyk
- Department of Medical Physiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-126 Krakow, Poland; (J.B.); (J.S.)
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Li M, Lai Y, Chen B, Guo C, Zhou M, Zhao S, Wang S, Li J, Yang N, Zhang H. NAMPT is a metabolic checkpoint of IFNγ-producing CD4 + T cells in lupus nephritis. Mol Ther 2023; 31:193-210. [PMID: 36146932 PMCID: PMC9840150 DOI: 10.1016/j.ymthe.2022.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 08/12/2022] [Accepted: 09/19/2022] [Indexed: 01/26/2023] Open
Abstract
Interferon γ (IFNγ) produced by T cells represents the featured cytokine and is central to the pathogenesis of lupus nephritis (LN). Here, we identified nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme in the salvage NAD+ biosynthetic pathway, as playing a key role in controlling IFNγ production by CD4+ T cells in LN. Our data revealed that CD4+ T cells from LN showed an enhanced NAMPT-mediated NAD+ biosynthetic process, which was positively correlated with IFNγ production in CD4+ T cells. NAMPT promoted aerobic glycolysis and mitochondrial respiration in CD4+ T cells from patients with LN or MRL/lpr mice through the production of NAD+. By orchestrating metabolic fitness, NAMPT promoted translational efficiency of Ifng in CD4+ T cells. In vivo, knockdown of NAMPT by small interfering RNA (siRNA) or pharmacological inhibition of NAMPT by FK866 suppressed IFNγ production in CD4+ T cells, leading to reduced inflammatory infiltrates and ameliorated kidney damage in lupus mice. Taken together, this study uncovers a metabolic checkpoint of IFNγ-producing CD4+ T cells in LN in which therapeutically targeting NAMPT has the potential to normalize metabolic competence and blunt pathogenicity of CD4+ T cells in LN.
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Affiliation(s)
- Mengyuan Li
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yimei Lai
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Binfeng Chen
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Chaohuan Guo
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Mianjing Zhou
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Siyuan Zhao
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Shuyi Wang
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Jin Li
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Niansheng Yang
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Hui Zhang
- Department of Rheumatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
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Niu Q, Gao J, Wang L, Liu J, Zhang L. Regulation of differentiation and generation of osteoclasts in rheumatoid arthritis. Front Immunol 2022; 13:1034050. [PMID: 36466887 PMCID: PMC9716075 DOI: 10.3389/fimmu.2022.1034050] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/31/2022] [Indexed: 09/25/2023] Open
Abstract
INTRODUCTION Rheumatoid arthritis (RA), which affects nearly 1% of the world's population, is a debilitating autoimmune disease. Bone erosion caused by periarticular osteopenia and synovial pannus formation is the most destructive pathological changes of RA, also leads to joint deformity and loss of function,and ultimately affects the quality of life of patients. Osteoclasts (OCs) are the only known bone resorption cells and their abnormal differentiation and production play an important role in the occurrence and development of RA bone destruction; this remains the main culprit behind RA. METHOD Based on the latest published literature and research progress at home and abroad, this paper reviews the abnormal regulation mechanism of OC generation and differentiation in RA and the possible targeted therapy. RESULT OC-mediated bone destruction is achieved through the regulation of a variety of cytokines and cell-to-cell interactions, including gene transcription, epigenetics and environmental factors. At present, most methods for the treatment of RA are based on the regulation of inflammation, the inhibition of bone injury and joint deformities remains unexplored. DISCUSSION This article will review the mechanism of abnormal differentiation of OC in RA, and summarise the current treatment oftargeting cytokines in the process of OC generation and differentiation to reduce bone destruction in patients with RA, which isexpected to become a valuable treatment choice to inhibit bone destruction in RA.
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Affiliation(s)
- Qing Niu
- School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, China
| | - Jinfang Gao
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Lei Wang
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Jiaxi Liu
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Liyun Zhang
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
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Hanlon MM, Canavan M, Barker BE, Fearon U. Metabolites as drivers and targets in Rheumatoid Arthritis. Clin Exp Immunol 2021; 208:167-180. [PMID: 35020864 PMCID: PMC9188347 DOI: 10.1093/cei/uxab021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/03/2021] [Accepted: 12/14/2021] [Indexed: 12/15/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by neovascularization, immune cell infiltration, and synovial hyperplasia, which leads to degradation of articular cartilage and bone, and subsequent functional disability. Dysregulated angiogenesis, synovial hypoxia, and immune cell infiltration result in a ‘bioenergetic crisis’ in the inflamed joint which further exacerbates synovial invasiveness. Several studies have examined this vicious cycle between metabolism, immunity, and inflammation and the role metabolites play in these interactions. To add to this complexity, the inflamed synovium is a multicellular tissue with many cellular subsets having different metabolic requirements. Metabolites can shape the inflammatory phenotype of immune cell subsets during disease and act as central signalling hubs. In the RA joint, the increased energy demand of stromal and immune cells leads to the accumulation of metabolites such as lactate, citrate, and succinate as well as adipocytokines which can regulate downstream signalling pathways. Transcription factors such as HIF1ɑ and mTOR can act as metabolic sensors to activate synovial cells and drive pro-inflammatory effector function, thus perpetuating chronic inflammation further. These metabolic intermediates may be potential therapeutic targets and so understanding the complex interplay between metabolites and synovial cells in RA may allow for identification of novel therapeutic strategies but also may provide significant insight into the underlying mechanisms of disease pathogenesis.
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Affiliation(s)
- Megan M Hanlon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin.,EULAR Centre of Excellence for Rheumatology, Centre for Arthritis and Rheumatic Diseases, St. Vincent's University Hospital, Dublin, Ireland
| | - Mary Canavan
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin.,EULAR Centre of Excellence for Rheumatology, Centre for Arthritis and Rheumatic Diseases, St. Vincent's University Hospital, Dublin, Ireland
| | - Brianne E Barker
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin.,EULAR Centre of Excellence for Rheumatology, Centre for Arthritis and Rheumatic Diseases, St. Vincent's University Hospital, Dublin, Ireland
| | - Ursula Fearon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin.,EULAR Centre of Excellence for Rheumatology, Centre for Arthritis and Rheumatic Diseases, St. Vincent's University Hospital, Dublin, Ireland
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Liebold I, Grützkau A, Göckeritz A, Gerl V, Lindquist R, Feist E, Zänker M, Häupl T, Poddubnyy D, Zernicke J, Smiljanovic B, Alexander T, Burmester GR, Gay S, Stuhlmüller B. Peripheral blood mononuclear cells are hypomethylated in active rheumatoid arthritis and methylation correlates with disease activity. Rheumatology (Oxford) 2021; 60:1984-1995. [PMID: 33200208 DOI: 10.1093/rheumatology/keaa649] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/31/2020] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Epigenetic modifications are dynamic and influence cellular disease activity. The aim of this study was to investigate global DNA methylation in peripheral blood mononuclear cells (PBMCs) of RA patients to clarify whether global DNA methylation pattern testing might be useful in monitoring disease activity as well as the response to therapeutics. METHODS Flow cytometric measurement of 5-methyl-cytosine (5'-mC) was established using the cell line U937. In the subsequent prospective study, 62 blood samples were investigated, including 17 healthy donors and 45 RA patients at baseline and after 3 months of treatment with methotrexate, the IL-6 receptor inhibitor sarilumab, and Janus kinase inhibitors. Methylation status was assessed with an anti-5'-mC antibody and analysed in PBMCs and CD4+, CD8+, CD14+ and CD19+ subsets. Signal intensities of 5'-mC were correlated with 28-joint DASs with ESR and CRP (DAS28-ESR and DAS28-CRP). RESULTS Compared with healthy individuals, PBMCs of RA patients showed a significant global DNA hypomethylation. Signal intensities of 5'-mC correlated with transcription levels of DNMT1, DNMT3B and MTR genes involved in methylation processes. Using flow cytometry, significant good correlations and linear regression values were achieved in RA patients between global methylation levels and DAS28-ESR values for PBMCs (r = -0.55, P = 0.002), lymphocytes (r = -0.57, P = 0.001), CD4+ (r = -0.57, P = 0.001), CD8+ (r = -0.54, P = 0.001), CD14+ (r = -0.49, P = 0.008) and CD19+ (r = -0.52, P = 0.004) cells. CONCLUSIONS The degree of global DNA methylation was found to be associated with disease activity. Based on this novel approach, the degree of global methylation is a promising biomarker for therapy monitoring and the prediction of therapy outcome in inflammatory diseases.
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Affiliation(s)
- Ilka Liebold
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Andreas Grützkau
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz-Institute, Berlin, Germany
| | - Anika Göckeritz
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Velia Gerl
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Randall Lindquist
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz-Institute, Berlin, Germany
| | - Eugen Feist
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany.,Department of Rheumatology, Helios Fachklinik, Vogelsang-Gommern, Germany
| | - Michael Zänker
- Immanuel Klinikum Bernau Herzzentrum Brandenburg, Medizinische Hochschule Brandenburg, Bernau, Germany
| | - Thomas Häupl
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Denis Poddubnyy
- Division of Gastroenterology, Infectious Diseases and Rheumatology, Charité - Universitätsmedizin Berlin, Corporate Member of Berlin Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Jan Zernicke
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Biljana Smiljanovic
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Tobias Alexander
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Gerd R Burmester
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
| | - Steffen Gay
- Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland
| | - Bruno Stuhlmüller
- Division of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Institute of Health, Freie Universität and Humboldt-Universität, Berlin, Germany
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6
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Wang QH, Li Y, Dou DY, Wang R, Jiang TT, Wang L, Li MQ, Joshua Olatunji O, Zuo J. Nicotinamide mononucleotide-elicited NAMPT signaling activation aggravated adjuvant-induced arthritis in rats by affecting peripheral immune cells differentiation. Int Immunopharmacol 2021; 98:107856. [PMID: 34130151 DOI: 10.1016/j.intimp.2021.107856] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/20/2021] [Accepted: 06/03/2021] [Indexed: 12/14/2022]
Abstract
Supplement of nicotinamide mononucleotide (NMN), the direct precursor of nicotinamide adenine dinucleotide (NAD+) has gained prominence due to the significant anti-aging potentials of nicotinamide phosphoribosyltransferas (NAMPT)/NAD+ signaling. Because over-expression of NAMPT is deeply implicated in inflammatory arthritis, we investigated the effects of NMN supplement on rats with adjuvant-induced arthritis (AIA). Tested rats were given oral treatment of NMN at 200 mg/kg/day for 25 days. Arthritis score and body weight were periodically recorded. Clinical outcomes were evaluated based on arthritic manifestations, ELISA analysis and histological examination. T cells subsets were analyzed by flow cytometry. Expressions of protein and mRNA were assessed by immunoblotting and PCR methods, respectively. Levels of CD172a, CD43, and NAMPT in peripheral blood mononuclear cells (PBMCs) were investigated by immunofluorescence approach. Obtained results were further validated by experiments in vitro. Generally, NMN exacerbated AIA severity in rats. It deteriorated MMP3-controlled tissues damages, and altered immune profile by increasing Th17/Treg cells ratio. The up-regulation of NAMPT in PBMCs from NMN-treated rats was confirmed by both immunofluorescence and PCR experiments, which was synchronized with significant increase in iNOS, MCP-1, IL-1β expression. NMN-primed AIA PBMCs were potent in up-regulating MCP-1, IL-1β, MMP3 and p-JNK expression in synovioblast. NMN stimulus barely affected Th17 cells count in in vitro cultured splenocytes, but it greatly potentiated the capability of AIA monocytes in inducing IL-17α secretion and Th17 cells differentiation in the co-cultured splenocytes. It suggested that long-term NMN supplement could exacerbate inflammatory arthritis by reshaping the immune milieu through the up-regulation of NAMPT.
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Affiliation(s)
- Qi-Hai Wang
- School of Pharmacy, Anhui College of Traditional Chinese Medicine, Wuhu 241000, Anhui, China
| | - Yan Li
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu 241000, China; Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu 241000, China
| | - De-Yu Dou
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu 241000, China
| | - Rui Wang
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu 241000, China
| | - Tian-Tian Jiang
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu 241000, China
| | - Lin Wang
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu 241000, China
| | - Ming-Qiang Li
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu 241000, China
| | | | - Jian Zuo
- Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu 241000, China; Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu 241000, China; Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu 241000, China.
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Huffaker TB, Ekiz HA, Barba C, Lee SH, Runtsch MC, Nelson MC, Bauer KM, Tang WW, Mosbruger TL, Cox JE, Round JL, Voth WP, O'Connell RM. A Stat1 bound enhancer promotes Nampt expression and function within tumor associated macrophages. Nat Commun 2021; 12:2620. [PMID: 33976173 PMCID: PMC8113251 DOI: 10.1038/s41467-021-22923-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 03/30/2021] [Indexed: 02/03/2023] Open
Abstract
Tumor associated macrophage responses are regulated by distinct metabolic states that affect their function. However, the ability of specific signals in the local tumor microenvironment to program macrophage metabolism remains under investigation. Here, we identify NAMPT, the rate limiting enzyme in NAD salvage synthesis, as a target of STAT1 during cellular activation by interferon gamma, an important driver of macrophage polarization and antitumor responses. We demonstrate that STAT1 occupies a conserved element within the first intron of Nampt, termed Nampt-Regulatory Element-1 (NRE1). Through disruption of NRE1 or pharmacological inhibition, a subset of M1 genes is sensitive to NAMPT activity through its impact on glycolytic processes. scRNAseq is used to profile in vivo responses by NRE1-deficient, tumor-associated leukocytes in melanoma tumors through the creation of a unique mouse strain. Reduced Nampt and inflammatory gene expression are present in specific myeloid and APC populations; moreover, targeted ablation of NRE1 in macrophage lineages results in greater tumor burden. Finally, elevated NAMPT expression correlates with IFNγ responses and melanoma patient survival. This study identifies IFN and STAT1-inducible Nampt as an important factor that shapes the metabolic program and function of tumor associated macrophages.
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Affiliation(s)
- Thomas B Huffaker
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - H Atakan Ekiz
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Cindy Barba
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Soh-Hyun Lee
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Marah C Runtsch
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Morgan C Nelson
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Kaylyn M Bauer
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - William W Tang
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | | | - James E Cox
- Department of Biochemistry, University of Utah, Salt Lake City, UT, USA
- Metabolomics Core Research Facility, University of Utah, Salt Lake City, UT, USA
| | - June L Round
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Warren P Voth
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA.
| | - Ryan M O'Connell
- Division of Microbiology and Immunology, Department of Pathology, University of Utah, Salt Lake City, UT, USA.
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.
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8
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Yao S, Jiang C, Zhang H, Gao X, Guo Y, Cao Z. Visfatin regulates Pg LPS-induced proinflammatory/prodegradative effects in healthy and inflammatory periodontal cells partially via NF-κB pathway. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:119042. [PMID: 33901513 DOI: 10.1016/j.bbamcr.2021.119042] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/07/2021] [Accepted: 04/11/2021] [Indexed: 12/17/2022]
Abstract
Periodontitis is a widespread chronic infectious-inflammatory disease associated with multiple systemic diseases. Visfatin is an adipokine-enzyme that can be locally produced by human periodontal ligament cells (hPDLCs) and human gingival fibroblasts (hGFs). It can upregulate proinflammatory cytokines and matrix metalloproteinases (MMPs) in various types of cells. However, the effects of visfatin on healthy and inflammatory human periodontal cells as well as the underlying molecular mechanisms remain unclear. This study firstly demonstrated visfatin expression was highly elevated in inflamed human gingiva and Pg LPS-treated hPDLCs. Moreover, recombinant visfatin significantly upregulated the expression of proinflammatory cytokines (TNF-α, IL-1β and IL-6) and prodegradative factors (EMPPRIN, MMP1, MMP3 and MMP13) in hPDLCs. Next, we found the levels of proinflammatory and prodegradative cytokines were significantly increased in visfatin-overexpressing hPDLCs, and decreased in visfatin-silencing inflammatory hGFs (iGFs) when treated with Pg LPS. In the absence of Pg LPS, visfatin silencing failed to affect the expression of these factors in iGFs, and overexpression of visfatin upregulated MMPs but no other factors in hPDLCs. Furthermore, marked NF-κB pathway activation with increased phosphorylation of p65 was observed in visfatin-overexpressing hPDLCs. BAY11-7082, a specific inhibitor of NF-κB, partially reversed the upregulation proinflammatory and prodegradative factors induced by visfatin overexpression. Taken together, this study showed that visfatin critically regulates Pg LPS-induced proinflammatory/prodegradative effects in healthy and inflammatory periodontal cells partially via NF-κB pathway. The findings suggest that visfatin is closely involved in the development of periodontitis, and may serve as a promising novel biomarker and therapeutic target for periodontitis management.
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Affiliation(s)
- Siqi Yao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Chenxi Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Huihui Zhang
- Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xudong Gao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yi Guo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhengguo Cao
- Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan, China.
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9
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Boutet MA, Courties G, Nerviani A, Le Goff B, Apparailly F, Pitzalis C, Blanchard F. Novel insights into macrophage diversity in rheumatoid arthritis synovium. Autoimmun Rev 2021; 20:102758. [PMID: 33476818 DOI: 10.1016/j.autrev.2021.102758] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 11/24/2020] [Indexed: 12/18/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease affecting joints and causing progressive damage and disability. Macrophages are of critical importance in the initiation and perpetuation of synovitis in RA, they can function as antigen presenting cells leading to T-cell dependent B-cell activation, assume a variety of inflammatory cell states with the production of destructive cytokines, but also contribute to tissue homeostasis/repair. The recent development of high-throughput technologies, including bulk and single cells RNA-sequencing, has broadened our understanding of synovial cell diversity, and opened novel perspectives to the discovery of new potential therapeutic targets in RA. In this review, we will focus on the relationship between the synovial macrophage infiltration and clinical disease severity and response to treatment. We will then provide a state-of-the-art picture of the biological roles of synovial macrophages and distinct macrophage subsets described in RA. Finally, we will review the effects of approved conventional and biologic drugs on the synovial macrophage component and highlight the therapeutic potential of future strategies to re-program macrophage phenotypes in RA.
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Affiliation(s)
- Marie-Astrid Boutet
- Centre for Experimental Medicine & Rheumatology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Gabriel Courties
- IRMB, Univ Montpellier, INSERM, CHU Montpellier, Montpellier, France.
| | - Alessandra Nerviani
- Centre for Experimental Medicine & Rheumatology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Benoit Le Goff
- INSERM UMR1238, Bone Sarcoma and Remodelling of Calcified Tissues, Nantes University, Nantes, France; Rheumatology Department, Nantes University Hospital, Nantes, France.
| | | | - Costantino Pitzalis
- Centre for Experimental Medicine & Rheumatology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Frédéric Blanchard
- INSERM UMR1238, Bone Sarcoma and Remodelling of Calcified Tissues, Nantes University, Nantes, France.
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10
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Hannemann N, Apparailly F, Courties G. New insights into macrophage heterogeneity in rheumatoid arthritis. Joint Bone Spine 2020; 88:105091. [PMID: 33130232 DOI: 10.1016/j.jbspin.2020.105091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/15/2020] [Indexed: 12/24/2022]
Abstract
Rheumatoid arthritis (RA) is a prototypic autoimmune disease that primarily affects joints. Clinical studies and animal models evidenced that mononuclear phagocytes including monocytes and macrophages are crucial to RA pathogenesis, contributing to inflammation and destruction of cartilage and bone. The last decade of research has tremendously changed our view on the origin of tissue-resident macrophages. In light of the recent publications that reveal important phenotypic and functional heterogeneity among macrophages, it is of paramount importance to identify the synovial macrophage subsets that might amplify the inflammatory response or promote the restoration of tissue homeostasis. In this review, we highlight latest studies applying single-cell RNA sequencing that provide deeper insights in macrophage subsets and their putative functions within both human and mouse synovial joint tissue.
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Affiliation(s)
| | - Florence Apparailly
- IRMB, INSERM, University of Montpellier, Montpellier, France; Clinical department for osteoarticular diseases, University hospital of Montpellier, Montpellier, France.
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11
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Polyakova YV, Zavodovsky BV, Sivordova LE, Akhverdyan YR, Zborovskaya IA. Visfatin and Rheumatoid Arthritis: Pathogenetic Implications and Clinical Utility. Curr Rheumatol Rev 2020; 16:224-239. [DOI: 10.2174/1573397115666190409112621] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 03/15/2019] [Accepted: 04/02/2019] [Indexed: 12/12/2022]
Abstract
Objective:
Analysis and generalization of data related to visfatin involvement in the
pathogenesis of inflammation at various stages of rheumatoid arthritis.
Data Synthesis:
Visfatin is an adipocytokine which has also been identified in non-adipose tissues.
It influences directly on the maturation of B cells, which are involved in autoantibody production
and T cell activation. Visfatin can promote inflammation via regulation of pro-inflammatory cytokines
including TNF, IL-1β and IL-6. The concentration of circulating visfatin in rheumatoid arthritis
patients is higher compared to healthy individuals. Several studies suggest that visfatin level is
associated with rheumatoid arthritis activity, and its elevation may precede clinical signs of the relapse.
In murine collagen-induced arthritis, visfatin levels were also found to be elevated both in
inflamed synovial cells and in joint vasculature. Visfatin blockers have been shown to confer fast
and long-term attenuation of pathological processes; however, most of their effects are transient.
Other factors responsible for hyperactivation of the immune system can participate in this process
at a later stage. Treatment of rheumatoid arthritis with a combination of these blockers and inhibitors
of other mediators of inflammation can potentially improve treatment outcomes compared to
current therapeutic strategies. Recent advances in the treatment of experimental arthritis in mice as
well as the application of emerging treatment strategies obtained from oncology for rheumatoid arthritis
management could be a source of novel adipokine-mediated anti-rheumatic drugs.
Conclusion:
The ongoing surge of interest in anticytokine therapy makes further study of visfatin
highly relevant as it may serve as a base for innovational RA treatment.
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Affiliation(s)
- Yulia V. Polyakova
- Research Institute for Clinical and Experimental Rheumatology, Volgograd, Russian Federation
| | - Boris V. Zavodovsky
- Research Institute for Clinical and Experimental Rheumatology, Volgograd, Russian Federation
| | - Larisa E. Sivordova
- Research Institute for Clinical and Experimental Rheumatology, Volgograd, Russian Federation
| | - Yuri R. Akhverdyan
- Research Institute for Clinical and Experimental Rheumatology, Volgograd, Russian Federation
| | - Irina A. Zborovskaya
- Research Institute for Clinical and Experimental Rheumatology, Volgograd, Russian Federation
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12
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Tan Z, Chen L, Ren Y, Jiang X, Gao W. Neuroprotective effects of FK866 against traumatic brain injury: Involvement of p38/ERK pathway. Ann Clin Transl Neurol 2020; 7:742-756. [PMID: 32302063 PMCID: PMC7261767 DOI: 10.1002/acn3.51044] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/20/2020] [Accepted: 03/20/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE FK866 is an inhibitor of nicotinamide phosphoribosyltransferase (NAMPT), which exhibits neuroprotective effects in ischemic brain injury. However, in traumatic brain injury (TBI), the role and mechanism of FK866 remain unclear. The present research was aimed to investigate whether FK866 could attenuate TBI and clarified the underlying mechanisms. METHODS A controlled cortical impact model was established, and FK866 at a dose of 5 mg/kg was administered intraperitoneally at 1 h and 6 h, then twice per day post-TBI until sacrifice. Brain water content, Evans blue dye extravasation, modified neurological severity scores (mNSS), Morris water maze test, enzyme-linked immunosorbent assay (ELISA), immunofluorescence staining, and western blot were performed. RESULTS The results demonstrated that FK866 significantly mitigated the brain edema, blood-brain barrier (BBB) disruption, and ameliorated the neurological function post-TBI. Moreover, FK866 decreased the number of Iba-1-positive cells, GFAP-positive astrocytes, and AQP4-positive cells. FK866 reduced the protein levels of proinflammatory cytokines and inhibited NF-κB from translocation to the nucleus. FK866 upregulated the expression of Bcl-2, diminished the expression of Bax and caspase 3, and the number of apoptotic cells. Moreover, p38 MAPK and ERK activation were significantly inhibited by FK866. INTERPRETATION FK866 attenuated TBI-induced neuroinflammation and apoptosis, at least in part, through p38/ERK MAPKs signaling pathway.
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Affiliation(s)
- Zhongju Tan
- Department of GeriatricsThe First Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiangChina
| | - Lili Chen
- Department of NeurologyXiasha CampusSir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Yucheng Ren
- Department of NeurosurgeryThe Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiangChina
| | - Xiaohang Jiang
- Department of NeurosurgeryThe Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiangChina
| | - Wei Gao
- Department of NeurologyChangxing People’s HospitalThe Second Affiliated Hospital of Zhejiang University Changxing CampusChangxingZhejiangChina
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13
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Busignies V, Arruda DC, Charrueau C, Ribeiro MCS, Lachagès AM, Malachias A, Finet S, Rehman AU, Bigey P, Tchoreloff P, Escriou V. Compression of Vectors for Small Interfering RNAs Delivery: Toward Oral Administration of siRNA Lipoplexes in Tablet Forms. Mol Pharm 2020; 17:1159-1169. [PMID: 32125867 DOI: 10.1021/acs.molpharmaceut.9b01190] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Currently, most nonviral nucleic acid vectors are in the form of colloidal suspensions administered primarily parenterally. This type of formulation and the mode of administration impose strong constraints such as the size of the administered vectors or the production of sterile preparations. The tablet form provides access to easy oral administration, well accepted by patients; As regards nucleic acid vectors, a dry form represents an advance in terms of stability. Using an optimized lipid-based small interfering RNA-delivery system, we studied the tabletability of a liquid suspension of these vectors. We optimized the conditions of freeze-drying by choosing excipients and process, allowing for the conservation of both the gene-silencing efficacy of the formulated siRNAs and the supramolecular structure of the lipid particulate system. Gene-silencing efficacy was assayed on luciferase-expressing cells and the structure of the siRNA vector in freeze-dried and tablet forms was examined using small-angle X-ray scattering (SAXS) synchrotron radiation. The freeze-dried powders were then mixed with excipients necessary for the good progress of the compression by allowing for a regular supply of the matrix and the reduction of friction. The compression was carried out using a rotary press simulator that allows for complete monitoring of the compression conditions. After compression, formulated siRNAs retained more than 60% of their gene-silencing efficacy. Within the tablets, a specific SAXS signal was detectable and the lamellar and cubic phases of the initial liquid suspension were restored after resuspension of siRNA vectors by disintegration of the tablets. These results show that the bilayer lipid structures of the particles were preserved despite the mechanical constraints imposed by the compression. If such a result could be expected after the freeze-drying step, it was never shown, to our knowledge, that siRNA-delivery systems could retain their efficacy and structure after mechanical stress such as compression. This opens promising perspectives to oral administration of siRNA as an alternative to parenteral administration.
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Affiliation(s)
- Virginie Busignies
- Univ. Bordeaux, CNRS, Arts et Metiers Institute of Technology, Bordeaux INP, INRAE I2M, Bordeaux F-33400, Talence, France
| | - Danielle Campiol Arruda
- Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.,Université de Paris, UTCBS, CNRS, INSERM, F-75006 Paris, France
| | | | - Marcela Coelho Silva Ribeiro
- Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.,Université de Paris, UTCBS, CNRS, INSERM, F-75006 Paris, France
| | | | - Angelo Malachias
- Departamento de Física, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Stéphanie Finet
- Sorbonne Université, IMPMC, CNRS, MNHN, F-75005 Paris, France
| | - Asad Ur Rehman
- Université de Paris, UTCBS, CNRS, INSERM, F-75006 Paris, France
| | - Pascal Bigey
- Université de Paris, UTCBS, CNRS, INSERM, F-75006 Paris, France.,PSL University, ChimieParisTech, F-75005 Paris, France
| | - Pierre Tchoreloff
- Univ. Bordeaux, CNRS, Arts et Metiers Institute of Technology, Bordeaux INP, INRAE I2M, Bordeaux F-33400, Talence, France
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14
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Duroux-Richard I, Robin M, Peillex C, Apparailly F. MicroRNAs: Fine Tuners of Monocyte Heterogeneity. Front Immunol 2019; 10:2145. [PMID: 31608049 PMCID: PMC6768098 DOI: 10.3389/fimmu.2019.02145] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/27/2019] [Indexed: 01/13/2023] Open
Abstract
Small non-coding microRNAs (miRNAs) have been found to play critical roles in many biological processes by controlling gene expression at the post-transcriptional level. They appear to fine-tune the immune response by targeting key regulatory molecules, and their abnormal expression is associated with immune-mediated inflammatory disorders. Monocytes actively contribute to tissue homeostasis by triggering acute inflammatory reactions as well as the resolution of inflammation and tissue regeneration, in case of injury or pathogen invasion. Their contribution to tissue homeostasis can have many aspects because they are able to differentiate into different cell types including macrophages, dendritic cells, and osteoclasts, which fulfill functions as different as bone remodeling and immune response. Monocytes consist of different subsets with subset-specific expression of miRNAs linked to distinct biological processes dedicated to specific roles. Therefore, understanding the role of miRNAs in the context of monocyte heterogeneity may provide clues as to which subset gives rise to which cell type in tissues. In addition, because monocytes are involved in the pathogenesis of chronic inflammation, associated with loss of tissue homeostasis and function, identifying subset-specific miRNAs might help in developing therapeutic strategies that target one subset while sparing the others. Here, we give an overview of the state-of-the-art research regarding miRNAs that are differentially expressed between monocyte subsets and how they influence monocyte functional heterogeneity in health and disease, with descriptions of specific miRNAs. We also revisit the existing miRNome data to propose a canonical signature for each subset.
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Affiliation(s)
| | - Maxime Robin
- IRMB, INSERM, University of Montpellier, Montpellier, France
| | - Cindy Peillex
- IRMB, INSERM, University of Montpellier, Montpellier, France
| | - Florence Apparailly
- IRMB, INSERM, University of Montpellier, Montpellier, France.,Clinical Department for Osteoarticular Diseases, University Hospital of Montpellier, Montpellier, France
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15
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Franco-Trepat E, Alonso-Pérez A, Guillán-Fresco M, Jorge-Mora A, Gualillo O, Gómez-Reino JJ, Gómez Bahamonde R. Visfatin as a therapeutic target for rheumatoid arthritis. Expert Opin Ther Targets 2019; 23:607-618. [DOI: 10.1080/14728222.2019.1617274] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Eloi Franco-Trepat
- Musculoskeletal Pathology Group, Institute IDIS, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Ana Alonso-Pérez
- Musculoskeletal Pathology Group, Institute IDIS, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - María Guillán-Fresco
- Musculoskeletal Pathology Group, Institute IDIS, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Alberto Jorge-Mora
- Musculoskeletal Pathology Group, Institute IDIS, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Oreste Gualillo
- Research laboratory 9 (NEIRID LAB), Institute of Medical Research, SERGAS, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Juan J. Gómez-Reino
- Rheumatology Group, Institute IDIS, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Rodolfo Gómez Bahamonde
- Musculoskeletal Pathology Group, Institute IDIS, Santiago University Clinical Hospital, Santiago de Compostela, Spain
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16
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Li X, Islam S, Xiong M, Nsumu NN, Lee MW, Zhang LQ, Ueki Y, Heruth DP, Lei G, Ye SQ. Epigenetic regulation of NfatC1 transcription and osteoclastogenesis by nicotinamide phosphoribosyl transferase in the pathogenesis of arthritis. Cell Death Discov 2019; 5:62. [PMID: 30774990 PMCID: PMC6365567 DOI: 10.1038/s41420-018-0134-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/15/2018] [Accepted: 11/29/2018] [Indexed: 01/17/2023] Open
Abstract
Nicotinamide phosphoribosyltransferase (NAMPT) functions in NAD synthesis, apoptosis, and inflammation. Dysregulation of NAMPT has been associated with several inflammatory diseases, including rheumatoid arthritis (RA). The purpose of this study was to investigate NAMPT’s role in arthritis using mouse and cellular models. Collagen-induced arthritis (CIA) in DBA/1J Nampt+/− mice was evaluated by ELISA, micro-CT, and RNA-sequencing (RNA-seq). In vitro Nampt loss-of-function and gain-of-function studies on osteoclastogenesis were examined by TRAP staining, nascent RNA capture, luciferase reporter assays, and ChIP-PCR. Nampt-deficient mice presented with suppressed inflammatory bone destruction and disease progression in a CIA mouse model. Nampt expression was required for the epigenetic regulation of the Nfatc1 promoter and osteoclastogenesis. Finally, RNA-seq identified 690 differentially expressed genes in whole ankle joints which associated (P < 0.05) with Nampt expression and CIA. Selected target was validated by RT-PCR or functional characterization. We have provided evidence that NAMPT functions as a genetic risk factor and a potential therapeutic target to RA.
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Affiliation(s)
- Xuanan Li
- 1Division of Experimental and Translational Genetics, Children's Mercy, Kansas City, MO 64108 USA.,2Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, MO 64108 USA.,3Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410005 China
| | - Shamima Islam
- 1Division of Experimental and Translational Genetics, Children's Mercy, Kansas City, MO 64108 USA
| | - Min Xiong
- 1Division of Experimental and Translational Genetics, Children's Mercy, Kansas City, MO 64108 USA
| | - Ndona N Nsumu
- 1Division of Experimental and Translational Genetics, Children's Mercy, Kansas City, MO 64108 USA
| | - Mark W Lee
- 4Department of Chemistry, University of Missouri, Columbia, MO 65211 USA
| | - Li Qin Zhang
- 1Division of Experimental and Translational Genetics, Children's Mercy, Kansas City, MO 64108 USA.,2Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, MO 64108 USA
| | - Yasuyoshi Ueki
- 5Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108 USA
| | - Daniel P Heruth
- 1Division of Experimental and Translational Genetics, Children's Mercy, Kansas City, MO 64108 USA
| | - Guanghua Lei
- 3Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, 410005 China
| | - Shui Qing Ye
- 1Division of Experimental and Translational Genetics, Children's Mercy, Kansas City, MO 64108 USA.,2Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, MO 64108 USA
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17
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Alshahrani A, AlDubayee M, Zahra M, Alsebayel FM, Alammari N, Alsudairy F, Almajed M, Aljada A. Differential Expression of Human N-Alpha-Acetyltransferase 40 (hNAA40), Nicotinamide Phosphoribosyltransferase (NAMPT) and Sirtuin-1 (SIRT-1) Pathway in Obesity and T2DM: Modulation by Metformin and Macronutrient Intake. Diabetes Metab Syndr Obes 2019; 12:2765-2774. [PMID: 31920356 PMCID: PMC6938199 DOI: 10.2147/dmso.s228591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 11/27/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Interactions between environmental factors, such as diet and lifestyle, and metabolic pathways are pivotal in understanding aging mechanisms. hNAA40, Nicotinamide phosphoribosyltransferase (NAMPT), and NAD-dependent protein deacetylase sirtuin-1 (SIRT-1) have been shown to exert important biological processes, including stress response and aging. METHODS hNAA40, NAMPT, and SIRT-1 mRNA expression in peripheral blood mononuclear cells (PBMC) were quantitated in 30 lean adult volunteers of normal weight, 30 obese, 20 drug-naïve obese Type 2 diabetes mellitus (T2DM), and 30 obese T2DM on Metformin. Similarly, hNAA40, NAMPT, and SIRT-1 expression in PBMC were quantitated in 36 normal healthy adults randomly assigned to three different groups (Glucose or Whey proteins or lipids; 300 kcal). Blood samples were obtained at 1, 2, and 3 hrs after the macronutrient intake. RESULTS There was an increase in hNAA40 and a decrease in NAMPT and SIRT-1 expression in PBMC from T2DM. Metformin treatment reverted hNAA40, NAMPT, and SIRT-1 expression levels to normal levels. Glucose intake resulted in a significant increase in expression of hNAA40 at 1 hr and decreased significantly at 3 hrs post intake. Lipid intake resulted in an increase in expression of hNAA40 at 2 hr post intake and returned to normal levels at 3 hrs. Neither glucose nor lipid intake resulted in a significant change in NAMPT or SIRT-1 expression. Whey proteins resulted in significantly lower expression of NAMPT at 3 hrs and did not alter the expression levels of SIRT-1 significantly. CONCLUSION hNAA40, NAMPT, and SIRT-1 pathway could play a role in the determination of the healthy life-span. Metformin modulates this pathway.
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Affiliation(s)
- Awad Alshahrani
- Department of Medicine, Ministry of National Guard Health Affairs (MNG-HA), Riyadh, Kingdom of Saudi Arabia
- King Abdullah International Medical Research Centre (KAIMRC), Riyadh, Kingdom of Saudi Arabia
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Mohammed AlDubayee
- Department of Medicine, Ministry of National Guard Health Affairs (MNG-HA), Riyadh, Kingdom of Saudi Arabia
- King Abdullah International Medical Research Centre (KAIMRC), Riyadh, Kingdom of Saudi Arabia
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Mahmoud Zahra
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Firas M Alsebayel
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Nawaf Alammari
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Faisal Alsudairy
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Muath Almajed
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Ahmad Aljada
- Department of Biochemistry and Molecular Medicine, College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia
- Correspondence: Ahmad Aljada Department of Biochemistry and Molecular Medicine, College of Medicine, Alfaisal University, P.O. Box 50927, Riyadh11533, Kingdom of Saudi ArabiaTel +966 112158 834 Email
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18
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Zheng LY, Xu X, Wan RH, Xia S, Lu J, Huang Q. Association between serum visfatin levels and atherosclerotic plaque in patients with type 2 diabetes. Diabetol Metab Syndr 2019; 11:60. [PMID: 31367237 PMCID: PMC6657107 DOI: 10.1186/s13098-019-0455-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 07/18/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Visfatin is a multifaceted protein that plays an important role in regulating a variety of physiological and pathological processes, including obesity, diabetes and cardiovascular disease. However, circulating visfatin levels in atherosclerosis plaque progression in patients with type 2 diabetes, or its association with the vascular territory affected remain unclear. METHODS We evaluated the relationship between visfatin levels and carotid or femoral artery atherosclerosis in Chinese patients with type 2 diabetes. Serum levels of visfatin were measured by enzyme-linked immunosorbent assay (ELISA) in 97 inpatients with type 2 diabetes. Carotid and/or femoral atherosclerotic plaques were detected by B-mode ultrasound. RESULTS Serum visfatin levels were elevated in the group with atherosclerotic plaques compared to the control group without plaques [0.68 (0.46-1.58) versus 0.45 (0.23-0.76) ng/mL, respectively, P = 0.0002]. Patients with carotid plaques showed higher visfatin levels than those with or without femoral plaques. Pearson's correlation analysis showed that serum visfatin levels were positively correlated with waist circumference (r = 0.226, P = 0.029), waist-hip ratio (r = 0.221, P = 0.032), TG (r = 0.222, P = 0.030) and number of plaques (r = 0.275, P = 0.009). Logistic regression analysis showed that a higher serum visfatin level was an independent predictor for the presence of atherosclerotic plaques. CONCLUSIONS In conclusion, among patients with T2DM, serum visfatin levels were elevated in those with atherosclerotic plaques, especially in patients with carotid atherosclerotic plaques. Serum visfatin may serve as a predictor of atherosclerotic plaques in patients with T2DM.
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Affiliation(s)
- Long-Yi Zheng
- Department of Endocrinology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433 China
| | - Xia Xu
- Department of Rheumatology and Immunology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433 China
| | - Ren-Hui Wan
- Department of Endocrinology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433 China
| | - Sheng Xia
- Department of Endocrinology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433 China
| | - Jin Lu
- Department of Endocrinology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433 China
| | - Qin Huang
- Department of Endocrinology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433 China
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19
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Ammari M, Presumey J, Ponsolles C, Roussignol G, Roubert C, Escriou V, Toupet K, Mausset-Bonnefont AL, Cren M, Robin M, Georgel P, Nehmar R, Taams L, Grün J, Grützkau A, Häupl T, Pers YM, Jorgensen C, Duroux-Richard I, Courties G, Apparailly F. Delivery of miR-146a to Ly6C high Monocytes Inhibits Pathogenic Bone Erosion in Inflammatory Arthritis. Am J Cancer Res 2018; 8:5972-5985. [PMID: 30613275 PMCID: PMC6299444 DOI: 10.7150/thno.29313] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 10/12/2018] [Indexed: 12/20/2022] Open
Abstract
Rationale: Monocytes play critical roles in the pathogenesis of arthritis by contributing to the inflammatory response and bone erosion. Among genes involved in regulating monocyte functions, miR-146a negatively regulates the inflammatory response and osteoclast differentiation of monocytes. It is also the only miRNA reported to differentially regulate the cytokine response of the two classical Ly6Chigh and non-classical Ly6Clow monocyte subsets upon bacterial challenge. Although miR-146a is overexpressed in many tissues of arthritic patients, its specific role in monocyte subsets under arthritic conditions remains to be explored. Methods: We analyzed the monocyte subsets during collagen-induced arthritis (CIA) development by flow cytometry. We quantified the expression of miR-146a in classical and non-classical monocytes sorted from healthy and CIA mice, as well as patients with rheumatoid arthritis (RA). We monitored arthritis features in miR-146a-/- mice and assessed in vivo the therapeutic potential of miR-146a mimics delivery to Ly6Chigh monocytes. We performed transcriptomic and pathway enrichment analyses on both monocyte subsets sorted from wild type and miR-146a-/- mice. Results: We showed that the expression of miR-146a is reduced in the Ly6Chigh subset of CIA mice and in the analogous monocyte subset (CD14+CD16-) in humans with RA as compared with healthy controls. The ablation of miR-146a in mice worsened arthritis severity, increased osteoclast differentiation in vitro and bone erosion in vivo. In vivo delivery of miR-146a to Ly6Chigh monocytes, and not to Ly6Clow monocytes, rescues bone erosion in miR-146a-/- arthritic mice and reduces osteoclast differentiation and pathogenic bone erosion in CIA joints of miR-146a+/+ mice, with no effect on inflammation. Silencing of the non-canonical NF-κB family member RelB in miR-146a-/- Ly6Chigh monocytes uncovers a role for miR-146a as a key regulator of the differentiation of Ly6Chigh, and not Ly6Clow, monocytes into osteoclasts under arthritic conditions. Conclusion: Our results show that classical monocytes play a critical role in arthritis bone erosion. They demonstrate the theranostics potential of manipulating miR-146a expression in Ly6Chigh monocytes to prevent joint destruction while sparing inflammation in arthritis.
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Travelli C, Colombo G, Mola S, Genazzani AA, Porta C. NAMPT: A pleiotropic modulator of monocytes and macrophages. Pharmacol Res 2018; 135:25-36. [PMID: 30031171 DOI: 10.1016/j.phrs.2018.06.022] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 06/20/2018] [Indexed: 12/11/2022]
Abstract
Nicotinamide phosphoribosyltransferase (NAMPT) is the bottleneck enzyme of the NAD salvage pathway and thereby is a controller of intracellular NAD concentrations. It has been long known that the same enzyme can be secreted by a number of cell types and acts as a cytokine, although its receptor is at present unknown. Investigational compounds have been developed that target the enzymatic activity as well as the extracellular action (i.e. neutralizing antibodies). The present contribution reviews the evidence that links intracellular and extracellular NAMPT to myeloid biology, for example governing monocyte/macrophage differentiation, polarization and migration. Furthermore, it reviews the evidence that links this protein to some disorders in which myeloid cells have a prominent role (acute infarct, inflammatory bowel disease, acute lung injury and rheumatoid arthritis) and the data showing that inhibition of the enzymatic activity or the neutralization of the cytokine is beneficial in preclinical animal models.
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Affiliation(s)
- Cristina Travelli
- Department of Pharmacological Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Giorgia Colombo
- Department of Pharmacological Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Silvia Mola
- Department of Pharmacological Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Armando A Genazzani
- Department of Pharmacological Sciences, Università del Piemonte Orientale, Novara, Italy.
| | - Chiara Porta
- Department of Pharmacological Sciences, Università del Piemonte Orientale, Novara, Italy
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21
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Singh RK, van Haandel L, Heruth DP, Ye SQ, Leeder JS, Becker ML, Funk RS. Nicotinamide Phosphoribosyltransferase Deficiency Potentiates the Antiproliferative Activity of Methotrexate through Enhanced Depletion of Intracellular ATP. J Pharmacol Exp Ther 2018; 365:96-106. [PMID: 29420256 DOI: 10.1124/jpet.117.246199] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 01/26/2018] [Indexed: 12/11/2022] Open
Abstract
Lower plasma nicotinamide phosphoribosyltransferase (NAMPT) levels are associated with improved response to methotrexate (MTX) in patients with juvenile idiopathic arthritis. Cell-based studies confirmed that reduced cellular NAMPT activity potentiates the pharmacologic activity of MTX; however, the mechanism of this interaction has yet to be defined. Therefore, in this study, we investigate the mechanism of enhanced pharmacologic activity of MTX in NAMPT-deficient A549 cells. Small interfering RNA-based silencing of NAMPT expression resulted in a greater than 3-fold increase in sensitivity to MTX (P < 0.005) that was completely reversed by supplementation with folinic acid. Despite a 68% reduction in cellular NAD levels in NAMPT-deficient cells, no change in expression or activity of dihydrofolate reductase was observed and uptake of MTX was not significantly altered. MTX did not potentiate the depletion of cellular NAD levels, but NAMPT-deficient cells had significant elevations in levels of intermediates of de novo purine biosynthesis and were 4-fold more sensitive to depletion of ATP by MTX (P < 0.005). Supplementation with hypoxanthine and thymidine completely reversed the antiproliferative activity of MTX in NAMPT-deficient cells and corresponded to repletion of the cellular ATP pool without any effect on NAD levels. Together, these findings demonstrate that increased MTX activity with decreased NAMPT expression is dependent on the antifolate activity of MTX and is driven by enhanced sensitivity to the ATP-depleting effects of MTX. For the first time, these findings provide mechanistic details to explain the increase in pharmacological activity of MTX under conditions of reduced NAMPT activity.
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Affiliation(s)
- Rakesh K Singh
- Departments of Pharmacy Practice (R.K.S., R.S.F.) and Pharmacology, Toxicology, and Therapeutics (J.S.L., R.S.F.), University of Kansas Medical Center, Kansas City, Kansas; Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation (L.v.H., J.S.L., M.L.B.), Rheumatology (M.L.B.), and Experimental and Translational Genetics (D.P.H., S.Q.Y.), Children's Mercy Kansas City, Kansas City, Missouri; and Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri (S.Q.Y.)
| | - Leon van Haandel
- Departments of Pharmacy Practice (R.K.S., R.S.F.) and Pharmacology, Toxicology, and Therapeutics (J.S.L., R.S.F.), University of Kansas Medical Center, Kansas City, Kansas; Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation (L.v.H., J.S.L., M.L.B.), Rheumatology (M.L.B.), and Experimental and Translational Genetics (D.P.H., S.Q.Y.), Children's Mercy Kansas City, Kansas City, Missouri; and Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri (S.Q.Y.)
| | - Daniel P Heruth
- Departments of Pharmacy Practice (R.K.S., R.S.F.) and Pharmacology, Toxicology, and Therapeutics (J.S.L., R.S.F.), University of Kansas Medical Center, Kansas City, Kansas; Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation (L.v.H., J.S.L., M.L.B.), Rheumatology (M.L.B.), and Experimental and Translational Genetics (D.P.H., S.Q.Y.), Children's Mercy Kansas City, Kansas City, Missouri; and Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri (S.Q.Y.)
| | - Shui Q Ye
- Departments of Pharmacy Practice (R.K.S., R.S.F.) and Pharmacology, Toxicology, and Therapeutics (J.S.L., R.S.F.), University of Kansas Medical Center, Kansas City, Kansas; Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation (L.v.H., J.S.L., M.L.B.), Rheumatology (M.L.B.), and Experimental and Translational Genetics (D.P.H., S.Q.Y.), Children's Mercy Kansas City, Kansas City, Missouri; and Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri (S.Q.Y.)
| | - J Steven Leeder
- Departments of Pharmacy Practice (R.K.S., R.S.F.) and Pharmacology, Toxicology, and Therapeutics (J.S.L., R.S.F.), University of Kansas Medical Center, Kansas City, Kansas; Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation (L.v.H., J.S.L., M.L.B.), Rheumatology (M.L.B.), and Experimental and Translational Genetics (D.P.H., S.Q.Y.), Children's Mercy Kansas City, Kansas City, Missouri; and Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri (S.Q.Y.)
| | - Mara L Becker
- Departments of Pharmacy Practice (R.K.S., R.S.F.) and Pharmacology, Toxicology, and Therapeutics (J.S.L., R.S.F.), University of Kansas Medical Center, Kansas City, Kansas; Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation (L.v.H., J.S.L., M.L.B.), Rheumatology (M.L.B.), and Experimental and Translational Genetics (D.P.H., S.Q.Y.), Children's Mercy Kansas City, Kansas City, Missouri; and Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri (S.Q.Y.)
| | - Ryan S Funk
- Departments of Pharmacy Practice (R.K.S., R.S.F.) and Pharmacology, Toxicology, and Therapeutics (J.S.L., R.S.F.), University of Kansas Medical Center, Kansas City, Kansas; Divisions of Clinical Pharmacology, Toxicology and Therapeutic Innovation (L.v.H., J.S.L., M.L.B.), Rheumatology (M.L.B.), and Experimental and Translational Genetics (D.P.H., S.Q.Y.), Children's Mercy Kansas City, Kansas City, Missouri; and Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri (S.Q.Y.)
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Abstract
The past decade has witnessed many advances in the understanding of sirtuin biology and related regulatory circuits supporting the capacity of these proteins to serve as energy-sensing molecules that contribute to healthspan in various tissues, including articular cartilage. Hence, there has been a significant increase in new investigations that aim to elucidate the mechanisms of sirtuin function and their roles in cartilage biology, skeletal development, and pathologies such as osteoarthritis (OA), rheumatoid arthritis (RA), and intervertebral disc degeneration (IVD). The majority of the work carried out to date has focused on SIRT1, although SIRT6 has more recently become a focus of some investigations. In vivo work with transgenic mice has shown that Sirt1 and Sirt6 are essential for maintaining cartilage homeostasis and that the use of sirtuin-activating molecules such as resveratrol may have beneficial effects on cartilage anabolism. Current thinking is that SIRT1 exerts positive effects on cartilage by encouraging chondrocyte survival, especially under stress conditions, which may provide a mechanism supporting the use of sirtuin small-molecule activators (STACS) for future therapeutic interventions in OA and other degenerative pathologies of joints, especially those that involve articular cartilage.
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23
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Zhao W, Beers DR, Hooten KG, Sieglaff DH, Zhang A, Kalyana-Sundaram S, Traini CM, Halsey WS, Hughes AM, Sathe GM, Livi GP, Fan GH, Appel SH. Characterization of Gene Expression Phenotype in Amyotrophic Lateral Sclerosis Monocytes. JAMA Neurol 2017; 74:677-685. [PMID: 28437540 DOI: 10.1001/jamaneurol.2017.0357] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Importance Amyotrophic lateral sclerosis (ALS) is a common adult-onset neurodegenerative disease characterized by selective loss of upper and lower motor neurons. Patients with ALS have persistent peripheral and central inflammatory responses including abnormally functioning T cells and activated microglia. However, much less is known about the inflammatory gene profile of circulating innate immune monocytes in these patients. Objective To characterize the transcriptomics of peripheral monocytes in patients with ALS. Design, Setting, and Participants Monocytes were isolated from peripheral blood of 43 patients with ALS and 22 healthy control individuals. Total RNA was extracted from the monocytes and subjected to deep RNA sequencing, and these results were validated by quantitative reverse transcription polymerase chain reaction. Main Outcomes and Measures The differential expressed gene signatures of these monocytes were identified using unbiased RNA sequencing strategy for gene expression profiling. Results The demographics between the patients with ALS (mean [SD] age, 58.8 [1.57] years; 55.8% were men and 44.2% were women; 90.7% were white, 4.65% were Hispanic, 2.33% were black, and 2.33% were Asian) and control individuals were similar (mean [SD] age, 57.6 [2.15] years; 50.0% were men and 50.0% were women; 90.9% were white, none were Hispanic, none were black, and 9.09% were Asian). RNA sequencing data from negative selected monocytes revealed 233 differential expressed genes in ALS monocytes compared with healthy control monocytes. Notably, ALS monocytes demonstrated a unique inflammation-related gene expression profile, the most prominent of which, including IL1B, IL8, FOSB, CXCL1, and CXCL2, were confirmed by quantitative reverse transcription polymerase chain reaction (IL8, mean [SE], 1.00 [0.18]; P = .002; FOSB, 1.00 [0.21]; P = .009; CXCL1, 1.00 [0.14]; P = .002; and CXCL2, 1.00 [0.11]; P = .01). Amyotrophic lateral sclerosis monocytes from rapidly progressing patients had more proinflammatory DEGs than monocytes from slowly progressing patients. Conclusions and Relevance Our data indicate that ALS monocytes are skewed toward a proinflammatory state in the peripheral circulation and may play a role in ALS disease progression, especially in rapidly progressing patients. This increased inflammatory response of peripheral immune cells may provide a potential target for disease-modifying therapy in patients with ALS.
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Affiliation(s)
- Weihua Zhao
- Department of Neurology, Peggy and Gary Edwards ALS Laboratory, Houston Methodist Neurological Institute, Houston Methodist Research Institute, Houston, Texas
| | - David R Beers
- Department of Neurology, Peggy and Gary Edwards ALS Laboratory, Houston Methodist Neurological Institute, Houston Methodist Research Institute, Houston, Texas
| | | | - Douglas H Sieglaff
- Texas Genomic Medicine Research Program, Houston Methodist Neurological Institute, Houston Methodist Research Institute, Houston, Texas
| | - Aijun Zhang
- Department of Medicine, Houston Methodist Neurological Institute, Houston Methodist Research Institute, Houston, Texas
| | | | | | - Wendy S Halsey
- Target Sciences at GlaxoSmithKline R&D, Collegeville, Pennsylvania
| | - Ashley M Hughes
- Target Sciences at GlaxoSmithKline R&D, Collegeville, Pennsylvania
| | - Ganesh M Sathe
- Target Sciences at GlaxoSmithKline R&D, Collegeville, Pennsylvania
| | - George P Livi
- Target Sciences at GlaxoSmithKline R&D, Collegeville, Pennsylvania
| | | | - Stanley H Appel
- Department of Neurology, Peggy and Gary Edwards ALS Laboratory, Houston Methodist Neurological Institute, Houston Methodist Research Institute, Houston, Texas
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24
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NAMPT inhibitor protects ischemic neuronal injury in rat brain via anti-neuroinflammation. Neuroscience 2017; 356:193-206. [DOI: 10.1016/j.neuroscience.2017.05.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 12/27/2022]
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25
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Ling M, Huang P, Islam S, Heruth DP, Li X, Zhang LQ, Li DY, Hu Z, Ye SQ. Epigenetic regulation of Runx2 transcription and osteoblast differentiation by nicotinamide phosphoribosyltransferase. Cell Biosci 2017; 7:27. [PMID: 28546856 PMCID: PMC5442704 DOI: 10.1186/s13578-017-0154-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 05/16/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Bone degenerative disorders like osteoporosis may be initiated by age-related shifts in anabolic and catabolic responses that control bone homeostasis. Although there are studies suggesting that metabolic changes occur with stem cell differentiation, the molecular mechanisms governing energy metabolism and epigenetic modification are not understood fully. Here we reported the key role of nicotinamide phosphoribosyltransferase (Nampt), which is the rate-limiting enzyme in the salvage pathway of NAD biosynthesis from nicotinamide, in the osteogenic differentiation of bone marrow stromal cells. RESULTS Differentiated bone marrow stromal cells isolated from Nampt+/- mice presented with diminished osteogenesis, as evaluated by alkaline phosphatase (ALP) staining, ALP activity and osteoblast-mediated mineralization, compared to cells from Nampt+/+ mice. Similar results were observed in differentiated Nampt-deficient C3H/10T1/2 and MC3T3-E1 cells. Further studies showed that Nampt promotes osteoblast differentiation through increased function and expression of Runx2 as tested by luciferase reporter assay, RT-PCR, and Western Blotting. Our data also demonstrated that Nampt regulates Runx2 transcription in part through epigenetic modification of H3-Lys9 acetylation. CONCLUSION Our study demonstrated that Nampt plays a critical role in osteoblast differentiation through epigenetic augmentation of Runx2 transcription. NAMPT may be a potential therapeutic target of aging-related osteoporosis.
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Affiliation(s)
- Min Ling
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA.,Spinal Surgery Division, The People's Hospital of Liuzhou, Guilin Medical University, 8 Wenchang Road, Liuzhou, 545006 Guangxi Province China
| | - Peixin Huang
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA
| | - Shamima Islam
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA
| | - Daniel P Heruth
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA
| | - Xuanan Li
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA
| | - Li Qin Zhang
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA
| | - Ding-You Li
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA
| | - Zhaohui Hu
- Spinal Surgery Division, The People's Hospital of Liuzhou, Guilin Medical University, 8 Wenchang Road, Liuzhou, 545006 Guangxi Province China
| | - Shui Qing Ye
- Department of Pediatrics, Children's Mercy, 2401 Gillham Road, PRC/4th FL, Kansas City, MO 64108 USA.,Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, MO USA
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26
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Carbone F, Liberale L, Bonaventura A, Vecchiè A, Casula M, Cea M, Monacelli F, Caffa I, Bruzzone S, Montecucco F, Nencioni A. Regulation and Function of Extracellular Nicotinamide Phosphoribosyltransferase/Visfatin. Compr Physiol 2017; 7:603-621. [DOI: 10.1002/cphy.c160029] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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27
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28
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Funk RS, Singh R, Pramann L, Gigliotti N, Islam S, Heruth DP, Ye SQ, Chan MA, Leeder JS, Becker ML. Nicotinamide Phosphoribosyltransferase Attenuates Methotrexate Response in Juvenile Idiopathic Arthritis and In Vitro. Clin Transl Sci 2016; 9:149-57. [PMID: 27166432 PMCID: PMC4902726 DOI: 10.1111/cts.12399] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/07/2016] [Accepted: 04/13/2016] [Indexed: 12/22/2022] Open
Abstract
Variability in response to methotrexate (MTX) in the treatment of juvenile idiopathic arthritis (JIA) remains unpredictable and poorly understood. Based on previous studies implicating an interaction between nicotinamide phosphoribosyltransferase (NAMPT) expression and MTX therapy in inflammatory arthritis, we hypothesized that increased NAMPT expression would be associated with reduced therapeutic response to MTX in patients with JIA. A significant association was found between increased plasma concentrations of NAMPT and reduced therapeutic response in patients with JIA treated with MTX. Inhibition of NAMPT in cell culture by either siRNA‐based gene silencing or pharmacological inhibition with FK‐866 was found to result in a fourfold increase in the pharmacological activity of MTX. Collectively, these findings provide evidence that NAMPT inhibits the pharmacological activity of MTX and may represent a predictive biomarker of response, as well as a therapeutic target, in the treatment of JIA with MTX.
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Affiliation(s)
- R S Funk
- Department of Pharmacy Practice, University of Kansas Medical Center, Kansas City, Kansas, USA.,Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri, USA.,Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - R Singh
- Department of Pharmacy Practice, University of Kansas Medical Center, Kansas City, Kansas, USA.,Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - L Pramann
- Department of Pharmacy Practice, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - N Gigliotti
- Division of Immunology Research, Children's Mercy Kansas City, Kansas City, Missouri, USA
| | - S Islam
- Division of Experimental and Translational Genetics, Children's Mercy Kansas City, Kansas City, Missouri, USA
| | - D P Heruth
- Division of Experimental and Translational Genetics, Children's Mercy Kansas City, Kansas City, Missouri, USA
| | - S Q Ye
- Division of Experimental and Translational Genetics, Children's Mercy Kansas City, Kansas City, Missouri, USA.,Department of Biomedical and Health Informatics, University of Missouri Kansas City School of Medicine, Kansas City, Missouri, USA
| | - M A Chan
- Division of Immunology Research, Children's Mercy Kansas City, Kansas City, Missouri, USA
| | - J S Leeder
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri, USA.,Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - M L Becker
- Division of Clinical Pharmacology, Toxicology and Therapeutic Innovation, Children's Mercy Kansas City, Kansas City, Missouri, USA.,Division of Rheumatology, Children's Mercy Kansas City, Kansas City, Missouri, USA
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29
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Pavlová T, Novák J, Bienertová-Vašků J. The role of visfatin (PBEF/Nampt) in pregnancy complications. J Reprod Immunol 2015; 112:102-10. [PMID: 26451650 DOI: 10.1016/j.jri.2015.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 07/13/2015] [Accepted: 09/17/2015] [Indexed: 01/05/2023]
Abstract
Visfatin (PBEF/Nampt) is an adipocytokine that exerts pleiotropic effects within the human body, particularly affecting its metabolism and immunity. Visfatin was originally identified as being secreted by peripheral blood lymphocytes acting as a pre-B-cell colony-enhancing factor (PBEF). However, it was subsequently reported to be expressed in almost every tissue of the human body, with visceral fat deposits being the main source of visfatin. In addition to its secreted form, visfatin may also be found intracellularly where it functions as a nicotinamide phosphoribosyltransferase (Nampt). Visfatin maternal plasma concentrations increase during pregnancy, suggesting its important role in this complicated process. Alterations in visfatin level also take place in patients during pregnancy complications. This review focuses on the ones that most commonly occur in connection with visfatin: preterm labor, pre-eclampsia and gestational diabetes mellitus. The review aims to provide a better understanding of the role of visfatin during pregnancy and the causes of its alteration in maternal plasma, highlighting the potential use of visfatin as a diagnostic marker of pregnancy complications in the future.
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Affiliation(s)
- Tereza Pavlová
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A18, Brno 62500, Czech Republic.
| | - Jan Novák
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A18, Brno 62500, Czech Republic.
| | - Julie Bienertová-Vašků
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A18, Brno 62500, Czech Republic; Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Žlutý kopec 7, Brno 65653, Czech Republic.
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30
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Herman S, Fischer A, Presumey J, Hoffmann M, Koenders MI, Escriou V, Apparailly F, Steiner G. Inhibition of Inflammation and Bone Erosion by RNA Interference-Mediated Silencing of Heterogeneous Nuclear RNP A2/B1 in Two Experimental Models of Rheumatoid Arthritis. Arthritis Rheumatol 2015; 67:2536-46. [DOI: 10.1002/art.39223] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 05/26/2015] [Indexed: 01/13/2023]
Affiliation(s)
| | | | - Jessy Presumey
- INSERM, U844, University Hospital of Montpellier and University of Montpellier I; Montpellier France
| | | | | | - Virginie Escriou
- INSERM, U1022, CNRS, UMR8151, Paris Descartes University, and Chimie ParisTech; Paris France
| | - Florence Apparailly
- INSERM, U844, University Hospital of Montpellier and University of Montpellier I; Montpellier France
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31
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Seri Y, Shoda H, Suzuki A, Matsumoto I, Sumida T, Fujio K, Yamamoto K. Peptidylarginine deiminase type 4 deficiency reduced arthritis severity in a glucose-6-phosphate isomerase-induced arthritis model. Sci Rep 2015; 5:13041. [PMID: 26293116 PMCID: PMC4544002 DOI: 10.1038/srep13041] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 07/16/2015] [Indexed: 12/29/2022] Open
Abstract
Peptidyl arginine deiminase 4 (PAD4) is an enzyme that is involved in protein citrullination, and is a target for anti-citrullinated peptide antibodies (ACPAs) in rheumatoid arthritis (RA). Genetic polymorphisms in the PADI4 gene encoding PAD4 are associated with RA susceptibility. We herein analyzed the roles of PADI4 in inflammatory arthritis using a glucose-6-phosphate isomerase (GPI)-induced arthritis (GIA) model in Padi4 knockout (KO) mice. Arthritis severity, serum anti-GPI antibody titers, and IL-6 concentrations were significantly reduced in Padi4 KO mice. The frequency of Th17 cells was decreased in GPI-immunized Padi4 KO mice, whereas WT and Padi4-deficient naïve CD4+ T cells displayed the same efficiencies for Th17 cell differentiation in vitro. In addition, the numbers of myeloid lineage cells were reduced with the increased expression of pro-apoptotic genes in GPI-immunized Padi4 KO mice. Furthermore, the survival of Padi4-deficient neutrophils was impaired in vitro. Our results suggest that PADI4 exacerbates arthritis with diverse immunological modifications.
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Affiliation(s)
- Yu Seri
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hirofumi Shoda
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Akari Suzuki
- Laboratory for Rheumatic Diseases, SNP Research Center, The Institute of Physical and Chemical Research (RIKEN), 1-7-22 Suehirocho, Tsurumi-ku, Yokohama City, Kanagawa 230-0045, Japan
| | - Isao Matsumoto
- Division of Clinical Immunology, Major of Advanced Biomedical Applications, Graduate School of Comprehensive Human Sciences, Tsukuba University, Tsukuba, Ibaraki, 305-8575, Japan
| | - Takayuki Sumida
- Division of Clinical Immunology, Major of Advanced Biomedical Applications, Graduate School of Comprehensive Human Sciences, Tsukuba University, Tsukuba, Ibaraki, 305-8575, Japan
| | - Keishi Fujio
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kazuhiko Yamamoto
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan.,Laboratory for Rheumatic Diseases, SNP Research Center, The Institute of Physical and Chemical Research (RIKEN), 1-7-22 Suehirocho, Tsurumi-ku, Yokohama City, Kanagawa 230-0045, Japan
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Olazagasti JM, Hein M, Crowson CS, de Padilla CL, Peterson E, Baechler EC, Reed AM. Adipokine gene expression in peripheral blood of adult and juvenile dermatomyositis patients and their relation to clinical parameters and disease activity measures. JOURNAL OF INFLAMMATION-LONDON 2015; 12:29. [PMID: 25918482 PMCID: PMC4410479 DOI: 10.1186/s12950-015-0075-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 03/29/2015] [Indexed: 11/23/2022]
Abstract
Objective Recently adipokines have been implicated in the regulation of immune and inflammatory responses in autoimmune disease. To investigate the role of adipokines in adult and pediatric patients with newly diagnosed dermatomyositis (DM), we analyzed peripheral blood and skeletal muscle gene expression of four adipokines: visfatin, leptin, adiponectin and resistin. Methods Peripheral blood mononuclear cells (PBMCs) were collected for 21 adult DM, 26 juvenile DM, 5 non-disease adult controls, and 6 non-disease pediatric controls at two time points: baseline and 6 months. Muscle biopsies from 5 adult DM patients and 5 non-disease adult controls were collected at baseline. Similarly, muscle biopsies from 7 juvenile DM patients and 5 non-disease pediatric controls were collected at baseline. The gene expression levels of leptin, adiponectin, resistin, visfatin and related inflammatory cytokines, IL-6, TNF- α, and housekeeping genes GAPDH, B2M, and ACTB were generated using a custom RT2 Profiler PCR Array. Results Visfatin gene expression levels in peripheral blood were significantly higher in newly diagnosed adult DM cases compared to non-disease controls (P = 0.004) and these levels correlated with baseline clinical parameters such as age (r = 0.34, P = 0.020), male sex (r = −0.35, P = 0.017), prednisone use (r = −0.42, P = 0.006), and DMARD use (r = 0.35, P = 0.025). No significant association was found between change in visfatin gene expression levels and change in disease activity measures. While visfatin gene expression was significantly up-regulated in muscle tissue of juvenile DM patients (P = 0.028), in adult DM patients only a trend towards significance was observed (P = 0.08). Also, muscle gene expression levels of resistin were significantly elevated in both adult and juvenile DM patients compared respectively to non-disease adult and pediatric controls. Furthermore, an association between peripheral blood resistin gene expression and DM disease activity, including global, muscle, and extra-skeletal disease activity was also observed. Conclusion Peripheral blood visfatin gene expression and muscle resistin gene expression are significantly increased in newly diagnosed adult DM patients. Further longitudinal studies should explore the possibility of using gene expression levels of adipokines such as visfatin and resistin as novel clinical diagnostic biomarkers in DM.
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Affiliation(s)
| | - Molly Hein
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN USA
| | - Cynthia S Crowson
- Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN USA ; Department of Health Sciences Research, Mayo Clinic, Rochester, MN USA
| | | | - Erik Peterson
- Department of Medicine, Division of Rheumatic and Autoimmune Diseases, and Center for Immunology, University of Minnesota, Minneapolis, MN USA
| | - Emily C Baechler
- Department of Medicine, Division of Rheumatic and Autoimmune Diseases, and Center for Immunology, University of Minnesota, Minneapolis, MN USA
| | - Ann M Reed
- Department of Pediatrics, Duke University School of Medicine, 201 Trent Drive, Durham, NC 27710 USA
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Decreased circulating visfatin is associated with improved disease activity in early rheumatoid arthritis: data from the PERAC cohort. PLoS One 2014; 9:e103495. [PMID: 25068448 PMCID: PMC4113419 DOI: 10.1371/journal.pone.0103495] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 07/03/2014] [Indexed: 12/13/2022] Open
Abstract
Objective To evaluate circulating visfatin and its relationship with disease activity and serum lipids in patients with early, treatment-naïve rheumatoid arthritis (RA). Methods Serum visfatin was measured in 40 patients with early RA before and after three months of treatment and in 30 age- and sex-matched healthy individuals. Disease activity was assessed using the Disease Activity Score for 28 joints (DAS28) at baseline and at three and 12 months. Multivariate linear regression analysis was performed to evaluate whether improved disease activity is related to serum visfatin or a change in visfatin level. Results Serum visfatin was significantly elevated in early RA patients compared to healthy controls (1.92±1.17 vs. 1.36±0.93 ng/ml; p = 0.034) and significantly decreased after three months of treatment (to 0.99±0.67 ng/ml; p<0.001). Circulating visfatin and a change in visfatin level correlated with disease activity and improved disease activity over time, respectively. A decrease in visfatin after three months predicted a DAS28 improvement after 12 months. In addition, decreased serum visfatin was not associated with an improved atherogenic index but was associated with an increase in total cholesterol level. Conclusion A short-term decrease in circulating visfatin may represent an independent predictor of long-term disease activity improvement in patients with early RA.
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Molecular control of monocyte development. Cell Immunol 2014; 291:16-21. [PMID: 24709055 DOI: 10.1016/j.cellimm.2014.02.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 02/02/2014] [Accepted: 02/26/2014] [Indexed: 12/21/2022]
Abstract
Monocyte development is a tightly regulated and multi-staged process, occurring through several defined progenitor cell intermediates. The key transcription factors, including PU.1, IRF8 and KLF4, growth factors, such as M-CSF and IL-34 and cytokines that drive monocyte development from hematopoietic progenitor cells are well defined. However, the molecular controls that direct differentiation into the Ly6C(hi) inflammatory and Ly6C(lo) monocyte subsets are yet to be completely elucidated. This review will provide a summary of the transcriptional regulation of monocyte development. We will also discuss how these molecular controls are also critical for microglial development despite their distinct haematopoetic origins. Furthermore, we will examine recent breakthroughs in defining mechanisms that promote differentiation of specific monocyte subpopulations.
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Zhao B, Zhang M, Han X, Zhang XY, Xing Q, Dong X, Shi QJ, Huang P, Lu YB, Wei EQ, Xia Q, Zhang WP, Tang C. Cerebral ischemia is exacerbated by extracellular nicotinamide phosphoribosyltransferase via a non-enzymatic mechanism. PLoS One 2013; 8:e85403. [PMID: 24392007 PMCID: PMC3877362 DOI: 10.1371/journal.pone.0085403] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 11/26/2013] [Indexed: 11/18/2022] Open
Abstract
Intracellular nicotinamide phosphoribosyltransferase (iNAMPT) in neuron has been known as a protective factor against cerebral ischemia through its enzymatic activity, but the role of central extracellular NAMPT (eNAMPT) is not clear. Here we show that eNAMPT protein level was elevated in the ischemic rat brain after middle-cerebral-artery occlusion (MCAO) and reperfusion, which can be traced to at least in part from blood circulation. Administration of recombinant NAMPT protein exacerbated MCAO-induced neuronal injury in rat brain, while exacerbated oxygen-glucose-deprivation (OGD) induced neuronal injury only in neuron-glial mixed culture, but not in neuron culture. In the mixed culture, NAMPT protein promoted TNF-α release in a time- and concentration-dependent fashion, while TNF-α neutralizing antibody protected OGD-induced, NAMPT-enhanced neuronal injury. Importantly, H247A mutant of NAMPT with essentially no enzymatic activity exerted similar effects on ischemic neuronal injury and TNF-α release as the wild type protein. Thus, eNAMPT is an injurious and inflammatory factor in cerebral ischemia and aggravates ischemic neuronal injury by triggering TNF-α release from glia cells, via a mechanism not related to NAMPT enzymatic activity.
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Affiliation(s)
- Bing Zhao
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Meng Zhang
- Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China
| | - Xue Han
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xia-Yan Zhang
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qiong Xing
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
| | - Xu Dong
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
| | - Qiao-Juan Shi
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Peng Huang
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yun-Bi Lu
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Er-Qing Wei
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qiang Xia
- Department of Physiology, Zhejiang University School of Medicine, Hangzhou, China
| | - Wei-Ping Zhang
- Department of Pharmacology, Key Laboratory of Medical Neurobiology of Ministry of Health of China, Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- * E-mail:
| | - Chun Tang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
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Gauger KJ, Bassa LM, Henchey EM, Wyman J, Bentley B, Brown M, Shimono A, Schneider SS. Mice deficient in Sfrp1 exhibit increased adiposity, dysregulated glucose metabolism, and enhanced macrophage infiltration. PLoS One 2013; 8:e78320. [PMID: 24339864 PMCID: PMC3855156 DOI: 10.1371/journal.pone.0078320] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 09/11/2013] [Indexed: 12/20/2022] Open
Abstract
The molecular mechanisms involved in the development of obesity and related complications remain unclear. Wnt signaling plays an important role in preadipocyte differentiation and adipogenesis. The expression of a Wnt antagonist, secreted frizzled related protein 1 (SFRP1), is increased in response to initial weight gain, then levels are reduced under conditions of extreme obesity in both humans and animals. Here we report that loss of Sfrp1 exacerbates weight gain, glucose homeostasis and inflammation in mice in response to diet induced obesity (DIO). Sfrp1-/- mice fed a high fat diet (HFD) exhibited an increase in body mass accompanied by increases in body fat percentage, visceral white adipose tissue (WAT) mass, and adipocyte size. Moreover, Sfrp1 deficiency increases the mRNA levels of key de novo lipid synthesis genes (Fasn, Acaca, Acly, Elovl, Scd1) and the transcription factors that regulate their expression (Lxr-α, Srebp1, Chreb, and Nr1h3) in WAT. Fasting glucose levels are elevated, glucose clearance is impaired, hepatic gluconeogenesis regulators are aberrantly upregulated (G6pc and Pck1), and glucose transporters are repressed (Slc2a2 and Slc2a4) in Sfrp1-/- mice fed a HFD. Additionally, we observed increased steatosis in the livers of Sfrp1-/- mice. When there is an expansion of adipose tissue there is a sustained inflammatory response accompanied by adipokine dysregulation, which leads to chronic subclinical inflammation. Thus, we assessed the inflammatory state of different tissues and revealed that Sfrp1-/- mice fed a HFD exhibited increased macrophage infiltration and expression of pro-inflammatory markers including IL-6, Nmnat, Tgf-β2, and SerpinE1. Our findings demonstrate that the expression of Sfrp1 is a critical factor required for maintaining appropriate cellular signaling in response to the onset of obesity.
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Affiliation(s)
- Kelly J. Gauger
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, Massachusetts, United States of America
- Biology Department, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Lotfi M. Bassa
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Elizabeth M. Henchey
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, Massachusetts, United States of America
| | - Josephine Wyman
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, Massachusetts, United States of America
| | - Brooke Bentley
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, Massachusetts, United States of America
| | - Melissa Brown
- Department of Nutrition, University of Massachusetts, Amherst, Massachusetts, United States of America
| | | | - Sallie S. Schneider
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, Massachusetts, United States of America
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts, United States of America
- * E-mail:
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