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Metabolic reprogramming by Syntenin-1 directs RA FLS and endothelial cell-mediated inflammation and angiogenesis

Cellular & Molecular Immunology 2024年第1期21卷 33-46页

作者： Anja Meyer Stephanie R.Zack Wes Nijim Adel Burgos Vishwa Patel Brian Zanotti Michael V.Volin M.Asif Amin Myles j.Lewis Costantino Pitzalis Shiva Arami joseph a.karam.nadera j.sweiss Shiva Shahrara jesse Brown VA Medical Center ChicagoILUSA Department of Medicine Division of RheumatologyThe University of Illinois at ChicagoChicagoILUSA Department of Microbiology and Immunology Midwestern UniversityDowners GroveILUSA Division of Rheumatology and Clinical Autoimmunity Center of Excellence University of MichiganAnn ArborMIUSA Centre for Experimental Medicine and Rheumatology William Harvey Research InstituteBarts and The London School of Medicine and DentistryQueen Mary University of LondonLondonUnited Kingdom Centre for Experimental Medicine&Rheumatology William Harvey Research InstituteQueen Mary University of London and Barts NIHR BRC&NHS TrustLondonUK Department of Biomedical Sciences Humanitas Universityand Humanitas Research HospitalMilanItaly Department of Orthopedic Surgery the University of Illinois at ChicagoChicagoILUSA

A novel rheumatoid arthritis(RA)synovial fluid protein,Syntenin-1,and its receptor,Syndecan-1(SDC-1),are colocalized on RA synovial tissue endothelial cells and fibroblast-like synoviocytes(FLS).Syntenin-1 exacerbates the inflammatory landscape of endothelial cells and RA FLS by upregulating transcription of IRF1/5/7/9,IL-1β,IL-6,and CCL2 through SDC-1 ligation and HIF1α,or mTOR ***,Syntenin-1 orchestrates RA FLS and endothelial cell invasion via SDC-1 and/or mTOR *** Syntenin-1 reprogrammed endothelial cells,the dynamic expression of metabolic intermediates coincides with escalated glycolysis along with unchanged oxidative factors,AMPK,PGC-1α,citrate,and inactive oxidative ***,RA FLS rewired by Syntenin-1 displayed a modest glycolytic-ATP accompanied by a robust mitochondrial-ATP *** enriched mitochondrial-ATP detected in Syntenin-1 reprogrammed RA FLS was coupled with mitochondrial fusion and fission recapitulated by escalated Mitofusin-2 and DRP1 *** found that VEGFR1/2 and Notch1 networks are responsible for the crosstalk between Syntenin-1 rewired endothelial cells and RA FLS,which are also represented in RA *** to RA explants,morphological and transcriptome studies authenticated the importance of VEGFR1/2,Notch1,RAPTOR,and HIF1αpathways in Syntenin-1 arthritic mice and their obstruction in SDC-1 deficient ***,dysregulation of SDC-1,mTOR,and HIF1αnegated Syntenin-1 inflammatory phenotype in RA explants,while inhibition of HIF1αimpaired synovial angiogenic imprint amplified by *** conclusion,since the current therapies are ineffective on Syntenin-1 and SDC-1 expression in RA synovial tissue and blood,targeting this pathway and its interconnected metabolic intermediates may provide a novel therapeutic strategy.

关键词： Syntenin-1 Syndecan-1 RA FLS RA explants immunometabolism

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Macrophages are the primary effector cells in IL-7-induced arthritis

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Cellular & Molecular Immunology 2020年第7期17卷 728-740页

作者： Seung-jae Kim Huan j.Chang Michael VVolin Sadiq Umar Katrien Van Raemdonck Aimee Chevalier Karol Palasiewicz john W.Christman Suncica Volkov Shiva Arami Mehrdad Maz Anjali Mehta Ryan K.Zomorrodi David A.Fox nadera sweiss Shiva Shahrara Division of Rheumatology Jesse Brown VAMedical CenterChicagoIL 60612USA Department of Medicine Division of RheumatologyUniversity of Illinois at ChicagoChicagoIL 60612USA Department of Microbiology and Immunology Chicago College of Osteopathic MedicineMidwestern UniversityDowners GroveIL 60515USA Pulmonary Critical Care and Sleep MedicineOhio State University Wexner Medical CenterDavis Heart and Lung Research InstituteColumbusOH 43210USA Division of Allergy Clinical Immunology and RheumatologyThe University of Kansas Medical CenterKansas CityKS 66160USA Division of Rheumatology and Clinical Autoimmunity Center of Excellence University of MichiganAnn ArborMI 481096USA

Synovial macrophages are crucial in the development of joint inflammation and bone damage;however, the pathways that controlmacrophage remodeling in inflammatory M1 cells or bone-eroding osteoclasts are not fully understood. We determined thatelevated IL-7R/CD127 expression is the hallmark of rheumatoid arthritis (RA) M1 macrophages and that these cells are highlyresponsive to interleukin-7 (IL-7)-driven osteoclastogenesis. We established that lipopolysaccharide (LPS), interferon-γ (IFNγ), andtumor necrosis factor-α (TNFα), the classic M1 macrophage mediators, enhance IL-7R expression in RA and murine *** local expression of IL-7 provokes arthritis, predominantly through escalating the number of F480^(+)iNOS^(+) cells rather than CD3^(+)T cells. Ectopic LPS injection stabilizes IL-7-induced arthritis by increasing myeloid IL-7R expression, in part via IFNγ ***, in RAG−/− mice, IL-7-mediated arthritis is suppressed because of the reduction in myeloid IL-7R expression due to the lackof IFNγ. Moreover, the amelioration of IL-7-induced arthritis by anti-TNF therapy is due to a decrease in the number of cells in theunique F480^(+)iNOS^(+)IL-7R^(+)CCL5^(+) subset, with no impact on the F480^(+)Arginase^(+) cell or CD3^(+) T cell frequency. Consistent with thepreclinical findings, the findings of a phase 4 study performed with RA patients following 6 months of anti-TNF therapy revealedthat IL-7R expression was reduced without affecting the levels of IL-7. This study shifts the paradigm by discovering that IL-7-induced arthritis is dependent on F480^(+)iNOS^(+)IL-7R^(+)CCL5^(+) cell function, which activates TH-1 cells to amplify myeloid IL-7Rexpression and disease severity.

关键词： myeloid elevated inflammation

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Inflammation Biomarkers as Predictors of Pulmonary Outcomes in Cardiac Surgical Patients

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Open journal of Thoracic Surgery 2013年第4期3卷 93-102页

作者： nadera j. sweiss Ray Sawaqed Kenneth V. Leeper Heval M. Kelli Timothy Niewold Omar M. Lattouf Emory University School of Medicine Atlanta USA.

Prolonged ventilator support, pulmonary infections and the need for tracheostomies after cardiac operations are associated with increased hospital mortality, length of stay, cost of hospitalization and reduced long term survival. The objective of this study is to review the literature and develop and present an understanding of the potential role of specific pre-operatively or intraoperatively collected inflammatory biomarkers and their role as predictors of pulmonary outcomes in cardiac surgery.

关键词： CABG COPD Biomarkers

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