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Xu S, Jiemy WF, Brouwer E, Burgess JK, Heeringa P, van der Geest KSM, Alba-Rovira R, Corbera-Bellalta M, Boots AH, Cid MC, Sandovici M. Current evidence on the role of fibroblasts in large-vessel vasculitides: From pathogenesis to therapeutics. Autoimmun Rev 2024; 23:103574. [PMID: 38782083 DOI: 10.1016/j.autrev.2024.103574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/29/2024] [Accepted: 05/20/2024] [Indexed: 05/25/2024]
Abstract
Large-vessel vasculitides (LVV) comprise a group of chronic inflammatory diseases of the aorta and its major branches. The most common forms of LVV are giant cell arteritis (GCA) and Takayasu arteritis (TAK). Both GCA and TAK are characterized by granulomatous inflammation of the vessel wall accompanied by a maladaptive immune and vascular response that promotes vascular damage and remodeling. The inflammatory process in LVV starts in the adventitia where fibroblasts constitute the dominant cell population. Fibroblasts are traditionally recognized for synthesizing and renewing the extracellular matrix thereby being major players in maintenance of normal tissue architecture and in tissue repair. More recently, fibroblasts have emerged as a highly plastic cell population exerting various functions, including the regulation of local immune processes and organization of immune cells at the site of inflammation through production of cytokines, chemokines and growth factors as well as cell-cell interaction. In this review, we summarize and discuss the current knowledge on fibroblasts in LVV. Furthermore, we identify key questions that need to be addressed to fully understand the role of fibroblasts in the pathogenesis of LVV.
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Affiliation(s)
- Shuang Xu
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - William F Jiemy
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Elisabeth Brouwer
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Janette K Burgess
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, the Netherlands
| | - Peter Heeringa
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, the Netherlands
| | - Kornelis S M van der Geest
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Roser Alba-Rovira
- Vasculitis Research Group, Department of Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Marc Corbera-Bellalta
- Vasculitis Research Group, Department of Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Annemieke H Boots
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands
| | - Maria C Cid
- Vasculitis Research Group, Department of Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Maria Sandovici
- University of Groningen, University Medical Center Groningen, Department of Rheumatology and Clinical Immunology, the Netherlands.
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Karabayas M, Ibrahim HE, Roelofs AJ, Reynolds G, Kidder D, De Bari C. Vascular disease persistence in giant cell arteritis: are stromal cells neglected? Ann Rheum Dis 2024:ard-2023-225270. [PMID: 38684323 DOI: 10.1136/ard-2023-225270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 04/05/2024] [Indexed: 05/02/2024]
Abstract
Giant cell arteritis (GCA), the most common systemic vasculitis, is characterised by aberrant interactions between infiltrating and resident cells of the vessel wall. Ageing and breach of tolerance are prerequisites for GCA development, resulting in dendritic and T-cell dysfunction. Inflammatory cytokines polarise T-cells, activate resident macrophages and synergistically enhance vascular inflammation, providing a loop of autoreactivity. These events originate in the adventitia, commonly regarded as the biological epicentre of the vessel wall, with additional recruitment of cells that infiltrate and migrate towards the intima. Thus, GCA-vessels exhibit infiltrates across the vascular layers, with various cytokines and growth factors amplifying the pathogenic process. These events activate ineffective repair mechanisms, where dysfunctional vascular smooth muscle cells and fibroblasts phenotypically shift along their lineage and colonise the intima. While high-dose glucocorticoids broadly suppress these inflammatory events, they cause well known deleterious effects. Despite the emerging targeted therapeutics, disease relapse remains common, affecting >50% of patients. This may reflect a discrepancy between systemic and local mediators of inflammation. Indeed, temporal arteries and aortas of GCA-patients can show immune-mediated abnormalities, despite the treatment induced clinical remission. The mechanisms of persistence of vascular disease in GCA remain elusive. Studies in other chronic inflammatory diseases point to the fibroblasts (and their lineage cells including myofibroblasts) as possible orchestrators or even effectors of disease chronicity through interactions with immune cells. Here, we critically review the contribution of immune and stromal cells to GCA pathogenesis and analyse the molecular mechanisms by which these would underpin the persistence of vascular disease.
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Affiliation(s)
- Maira Karabayas
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Hafeez E Ibrahim
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Anke J Roelofs
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Gary Reynolds
- Centre for Immunology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Dana Kidder
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Cosimo De Bari
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
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3
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Palamidas DA, Chatzis L, Papadaki M, Gissis I, Kambas K, Andreakos E, Goules AV, Tzioufas AG. Current Insights into Tissue Injury of Giant Cell Arteritis: From Acute Inflammatory Responses towards Inappropriate Tissue Remodeling. Cells 2024; 13:430. [PMID: 38474394 DOI: 10.3390/cells13050430] [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: 01/31/2024] [Revised: 02/25/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Giant cell arteritis (GCA) is an autoimmune disease affecting large vessels in patients over 50 years old. It is an exemplary model of a classic inflammatory disorder with IL-6 playing the leading role. The main comorbidities that may appear acutely or chronically are vascular occlusion leading to blindness and thoracic aorta aneurysm formation, respectively. The tissue inflammatory bulk is expressed as acute or chronic delayed-type hypersensitivity reactions, the latter being apparent by giant cell formation. The activated monocytes/macrophages are associated with pronounced Th1 and Th17 responses. B-cells and neutrophils also participate in the inflammatory lesion. However, the exact order of appearance and mechanistic interactions between cells are hindered by the lack of cellular and molecular information from early disease stages and accurate experimental models. Recently, senescent cells and neutrophil extracellular traps have been described in tissue lesions. These structures can remain in tissues for a prolonged period, potentially favoring inflammatory responses and tissue remodeling. In this review, current advances in GCA pathogenesis are discussed in different inflammatory phases. Through the description of these-often overlapping-phases, cells, molecules, and small lipid mediators with pathogenetic potential are described.
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Affiliation(s)
- Dimitris Anastasios Palamidas
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Loukas Chatzis
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Maria Papadaki
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Ilias Gissis
- Department of Thoracic and Cardiovascular Surgery, Evangelismos General Hospital, 11473 Athens, Greece
| | - Konstantinos Kambas
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, 11521 Athens, Greece
| | - Evangelos Andreakos
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Andreas V Goules
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Athanasios G Tzioufas
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Laboratory of Immunobiology, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
- Research Institute for Systemic Autoimmune Diseases, 11527 Athens, Greece
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4
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Veroutis D, Argyropoulou OD, Goules AV, Kambas K, Palamidas DA, Evangelou K, Havaki S, Polyzou A, Valakos D, Xingi E, Karatza E, Boki KA, Cavazza A, Kittas C, Thanos D, Ricordi C, Marvisi C, Muratore F, Galli E, Croci S, Salvarani C, Gorgoulis VG, Tzioufas AG. Senescent cells in giant cell arteritis display an inflammatory phenotype participating in tissue injury via IL-6-dependent pathways. Ann Rheum Dis 2024; 83:342-350. [PMID: 38050005 DOI: 10.1136/ard-2023-224467] [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: 05/25/2023] [Accepted: 11/08/2023] [Indexed: 12/06/2023]
Abstract
OBJECTIVES Age is the strongest risk factor of giant cell arteritis (GCA), implying a possible pathogenetic role of cellular senescence. To address this question, we applied an established senescence specific multimarker algorithm in temporal artery biopsies (TABs) of GCA patients. METHODS 75(+) TABs from GCA patients, 22(-) TABs from polymyalgia rheumatica (PMR) patients and 10(-) TABs from non-GCA/non-PMR patients were retrospectively retrieved and analysed. Synovial tissue specimens from patients with inflammatory arthritis and aorta tissue were used as disease control samples. Senescent cells and their histological origin were identified with specific cellular markers; IL-6 and MMP-9 were investigated as components of the senescent associated secretory phenotype by triple costaining. GCA or PMR artery culture supernatants were applied to fibroblasts, HUVECs and monocytes with or without IL-6R blocking agent to explore the induction of IL-6-associated cellular senescence. RESULTS Senescent cells were present in GCA arteries at higher proportion compared with PMR (9.50% vs 2.66%, respectively, p<0.0001) and were mainly originated from fibroblasts, macrophages and endothelial cells. IL-6 was expressed by senescent fibroblasts, and macrophages while MMP-9 by senescent fibroblasts only. IL-6(+) senescent cells were associated with the extension of vascular inflammation (transmural inflammation vs adventitia limited disease: 10.02% vs 4.37%, respectively, p<0.0001). GCA but not PMR artery culture supernatant could induce IL-6-associated senescence that was partially inhibited by IL-6R blockade. CONCLUSIONS Senescent cells with inflammatory phenotype are present in GCA arteries and are associated with the tissue inflammatory bulk, suggesting a potential implication in disease pathogenesis.
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Affiliation(s)
- Dimitris Veroutis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Ourania D Argyropoulou
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas V Goules
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Research Institute for Systemic Autoimmune Diseases, Athens, Greece
- Joint Rheumatology Program, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Kambas
- Laboratory of Molecular Genetics, Department of Immunology, Hellenic Pasteur Institute, Athens, Greece
| | - Dimitris Anastasios Palamidas
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Research Institute for Systemic Autoimmune Diseases, Athens, Greece
| | - Konstantinos Evangelou
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Sophia Havaki
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Aikaterini Polyzou
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Valakos
- Center of Basic Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Evangelia Xingi
- Light Microscopy Unit, Hellenic Pasteur Institute, Athens, Greece
| | - Elli Karatza
- Second Propaedeutic Department of Surgery, Laikon General Hospital, Athens, Greece
| | - Kyriaki A Boki
- Rheumatology Unit, Sismanoglion Hospital, Athens, Greece
| | - Alberto Cavazza
- Unit of Pathology, Azienda Unità Sanitaria Locale-IRCCS, Reggio Emilia, Italy
| | - Christos Kittas
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitris Thanos
- Center of Basic Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Caterina Ricordi
- Unit of Rheumatology, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, and University of Modena, Reggio Emilia, Italy
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Chiara Marvisi
- Unit of Rheumatology, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, and University of Modena, Reggio Emilia, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesco Muratore
- Unit of Rheumatology, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, and University of Modena, Reggio Emilia, Italy
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Elena Galli
- Unit of Rheumatology, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, and University of Modena, Reggio Emilia, Italy
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Stefania Croci
- Unit of Clinical Immunology, Allergy and Advanced Biotechnologies, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Carlo Salvarani
- Unit of Rheumatology, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, and University of Modena, Reggio Emilia, Italy
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Vassilis G Gorgoulis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
- Molecular and Clinical Cancer Sciences, Manchester Cancer Research Centre, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Athanasios G Tzioufas
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Research Institute for Systemic Autoimmune Diseases, Athens, Greece
- Joint Rheumatology Program, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- Center of stratified medicine in autoimmune and rheumatic diseases, Biomedical Research Foundation Academy of Athens, Athens, Greece
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La Barbera L, Rizzo C, Camarda F, Miceli G, Tuttolomondo A, Guggino G. The Contribution of Innate Immunity in Large-Vessel Vasculitis: Detangling New Pathomechanisms beyond the Onset of Vascular Inflammation. Cells 2024; 13:271. [PMID: 38334663 PMCID: PMC10854891 DOI: 10.3390/cells13030271] [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: 12/30/2023] [Revised: 01/28/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024] Open
Abstract
Large-vessel vasculitis (LVV) are autoimmune and autoinflammatory diseases focused on vascular inflammation. The central core of the intricate immunological and molecular network resides in the disruption of the "privileged immune state" of the arterial wall. The outbreak, initially primed by dendritic cells (DC), is then continuously powered in a feed-forward loop by the intimate cooperation between innate and adaptive immunity. If the role of adaptive immunity has been largely elucidated, knowledge of the critical function of innate immunity in LVV is still fragile. A growing body of evidence has strengthened the active role of innate immunity players and their key signaling pathways in orchestrating the complex pathomechanisms underlying LVV. Besides DC, macrophages are crucial culprits in LVV development and participate across all phases of vascular inflammation, culminating in vessel wall remodeling. In recent years, the variety of potential pathogenic actors has expanded to include neutrophils, mast cells, and soluble mediators, including the complement system. Interestingly, new insights have recently linked the inflammasome to vascular inflammation, paving the way for its potential pathogenic role in LVV. Overall, these observations encourage a new conceptual approach that includes a more in-depth study of innate immunity pathways in LVV to guide future targeted therapies.
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Affiliation(s)
- Lidia La Barbera
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, 90133 Palermo, Italy; (L.L.B.); (C.R.); (F.C.)
| | - Chiara Rizzo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, 90133 Palermo, Italy; (L.L.B.); (C.R.); (F.C.)
| | - Federica Camarda
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, 90133 Palermo, Italy; (L.L.B.); (C.R.); (F.C.)
| | - Giuseppe Miceli
- Unit of Internal Medicine and Stroke, Department of Health Promotion, Maternal and Child Care, Internal Medicine and Specialized Medicine, University of Palermo, 90133 Palermo, Italy; (G.M.); (A.T.)
| | - Antonino Tuttolomondo
- Unit of Internal Medicine and Stroke, Department of Health Promotion, Maternal and Child Care, Internal Medicine and Specialized Medicine, University of Palermo, 90133 Palermo, Italy; (G.M.); (A.T.)
| | - Giuliana Guggino
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Rheumatology Section, University of Palermo, 90133 Palermo, Italy; (L.L.B.); (C.R.); (F.C.)
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6
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Schäfer VS, Brossart P, Warrington KJ, Kurts C, Sendtner GW, Aden CA. The role of autoimmunity and autoinflammation in giant cell arteritis: A systematic literature review. Autoimmun Rev 2023; 22:103328. [PMID: 36990133 DOI: 10.1016/j.autrev.2023.103328] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023]
Abstract
Giant cell arteritis is the most common form of large vessel vasculitis and preferentially involves large and medium-sized arteries in patients over the age of 50. Aggressive wall inflammation, neoangiogenesis and consecutive remodeling processes are the hallmark of the disease. Though etiology is unknown, cellular and humoral immunopathological processes are well understood. Matrix metalloproteinase-9 mediated tissue infiltration occurs through lysis of basal membranes in adventitial vessels. CD4+ cells attain residency in immunoprotected niches, differentiate into vasculitogenic effector cells and enforce further leukotaxis. Signaling pathways involve the NOTCH1-Jagged1 pathway opening vessel infiltration, CD28 mediated T-cell overstimulation, lost PD-1/PD-L1 co-inhibition and JAK/STAT signaling in interferon dependent responses. From a humoral perspective, IL-6 represents a classical cytokine and potential Th-cell differentiator whereas interferon-γ (IFN- γ) has been shown to induce chemokine ligands. Current therapies involve glucocorticoids, tocilizumab and methotrexate application. However, new agents, most notably JAK/STAT inhibitors, PD-1 agonists and MMP-9 blocking substances, are being evaluated in ongoing clinical trials.
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Oumerzouk J, El Filali O, Zbitou A, Slioui B, Belasri S, Kissani N. Neurological complications of giant cell arteritis: A study of 15 cases and a review of the literature. J Fr Ophtalmol 2023; 46:211-215. [PMID: 36642599 DOI: 10.1016/j.jfo.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 01/15/2023]
Abstract
BACKGROUND Giant cell arteritis (GCA) is considered a neuro-ophthalmologic emergency. New-onset headache in patients aged 50 years and above with elevated erythrocyte sedimentation rate should prompt evaluation for GCA. MATERIAL AND METHODS Retrospective study of 15 patients presenting with GCA from 1991 to 2008 at the Mohamed V Military hospital at Rabat and Avicenne Military hospital of Marrakech. RESULTS Fifteen cases were recorded, with female predominance (male to female ratio 2:3) and a mean age of 63 years (range: 55-83 years). All patients (100%) presented with headache. The headache was isolated in 20% of cases and neuro-ophthalmic complications were found in 73% of cases. Biopsy was conclusive for GCA in 67% of cases and all of our patients were placed on steroids with spectacular improvement. CONCLUSION New-onset headache in patients aged 50 years and above should prompt evaluation for GCA. Steroids, especially during the acute phase, must be started urgently to avoid irreversible neurological impairment.
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Affiliation(s)
- J Oumerzouk
- Neurology department, Military hospital Avicenne, Marrakech, Morocco; Neuroscience research laboratory, Marrakech Medical school, Cadi Ayyad university, Marrakech, Morocco.
| | - O El Filali
- Vascular surgery department, Military hospital Avicenne, Marrakech, Morocco
| | - A Zbitou
- Cardiovascular department, Military hospital Avicenne, Marrakech, Morocco
| | - B Slioui
- Radiology department, Military hospital Avicenne, Marrakech, Morocco
| | - S Belasri
- Radiology department, Military hospital Avicenne, Marrakech, Morocco
| | - N Kissani
- Neurology department, Mohamed VI hospital, Marrakesh, Morocco; Neuroscience research laboratory, Marrakech Medical school, Cadi Ayyad university, Marrakech, Morocco
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8
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Szekeres D, Al Othman B. Current developments in the diagnosis and treatment of giant cell arteritis. Front Med (Lausanne) 2022; 9:1066503. [PMID: 36582285 PMCID: PMC9792614 DOI: 10.3389/fmed.2022.1066503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
Giant cell arteritis is the most common vasculitis in adults above 50 years old. The disease is characterized by granulomatous inflammation of medium and large arteries, particularly the temporal artery, and is associated acutely with headache, claudication, and visual disturbances. Diagnosis of the disease is often complicated by its protean presentation and lack of consistently reliable testing. The utility of color doppler ultrasound at the point-of-care and FDG-PET in longitudinal evaluation remain under continued investigation. Novel techniques for risk assessment with Halo scoring and stratification through axillary vessel ultrasound are becoming commonplace. Moreover, the recent introduction of the biologic tocilizumab marks a paradigm shift toward using glucocorticoid-sparing strategies as the primary treatment modality. Notwithstanding these developments, patients continue to have substantial rates of relapse and biologic agents have their own side effect profile. Trials are underway to answer questions about optimal diagnostic modality, regiment choice, and duration.
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Affiliation(s)
- Denes Szekeres
- School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY, United States
| | - Bayan Al Othman
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, NY, United States,*Correspondence: Bayan Al Othman,
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9
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Stamatis P, Turesson C, Michailidou D, Mohammad AJ. Pathogenesis of giant cell arteritis with focus on cellular populations. Front Med (Lausanne) 2022; 9:1058600. [PMID: 36465919 PMCID: PMC9714577 DOI: 10.3389/fmed.2022.1058600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/31/2022] [Indexed: 08/27/2023] Open
Abstract
Giant cell arteritis (GCA), the most common non-infectious vasculitis, mainly affects elderly individuals. The disease usually affects the aorta and its main supra-aortic branches causing both general symptoms of inflammation and specific ischemic symptoms because of the limited blood flow due to arterial structural changes in the inflamed arteries. The pathogenesis of the GCA is complex and includes a dysregulated immune response that affects both the innate and the adaptive immunity. During the last two decades several studies have investigated interactions among antigen-presenting cells and lymphocytes, which contribute to the formation of the inflammatory infiltrate in the affected arteries. Toll-like receptor signaling and interactions through the VEGF-Notch-Jagged1 pathway are emerging as crucial events of the aberrant inflammatory response, facilitating among others the migration of inflammatory cells to the inflamed arteries and their interactions with the local stromal milieu. The increased use of checkpoint inhibitors in cancer immunotherapy and their immune-related adverse events has fed interest in the role of checkpoint dysfunction in GCA, and recent studies suggest a dysregulated check point system which is unable to suppress the inflammation in the previously immune-privileged arteries, leading to vasculitis. The role of B-cells is currently reevaluated because of new reports of considerable numbers of plasma cells in inflamed arteries as well as the formation of artery tertiary lymphoid organs. There is emerging evidence on previously less studied cell populations, such as the neutrophils, CD8+ T-cells, T regulatory cells and tissue residing memory cells as well as for stromal cells which were previously considered as innocent bystanders. The aim of this review is to summarize the evidence in the literature regarding the cell populations involved in the pathogenesis of GCA and especially in the context of an aged, immune system.
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Affiliation(s)
- Pavlos Stamatis
- Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden
- Rheumatology, Sunderby Hospital, Luleå, Sweden
| | - Carl Turesson
- Rheumatology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Despina Michailidou
- Division of Rheumatology, Department of Medicine, University of Washington, Seattle, WA, United States
| | - Aladdin J. Mohammad
- Rheumatology, Department of Clinical Sciences, Lund University, Lund, Sweden
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
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10
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Watanabe R, Hashimoto M. Pathogenic role of monocytes/macrophages in large vessel vasculitis. Front Immunol 2022; 13:859502. [PMID: 35967455 PMCID: PMC9372263 DOI: 10.3389/fimmu.2022.859502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 07/11/2022] [Indexed: 11/21/2022] Open
Abstract
Vasculitis is an autoimmune vascular inflammation with an unknown etiology and causes vessel wall destruction. Depending on the size of the blood vessels, it is classified as large, medium, and small vessel vasculitis. A wide variety of immune cells are involved in the pathogenesis of vasculitis. Among these immune cells, monocytes and macrophages are functionally characterized by their capacity for phagocytosis, antigen presentation, and cytokine/chemokine production. After a long debate, recent technological advances have revealed the cellular origin of tissue macrophages in the vessel wall. Tissue macrophages are mainly derived from embryonic progenitor cells under homeostatic conditions, whereas bone marrow-derived circulating monocytes are recruited under inflammatory conditions, and then differentiate into macrophages in the arterial wall. Such macrophages infiltrate into an otherwise immunoprotected vascular site, digest tissue matrix with abundant proteolytic enzymes, and further recruit inflammatory cells through cytokine/chemokine production. In this way, macrophages amplify the inflammatory cascade and eventually cause tissue destruction. Recent studies have also demonstrated that monocytes/macrophages can be divided into several subpopulations based on the cell surface markers and gene expression. In this review, the subpopulations of circulating monocytes and the ontogeny of tissue macrophages in the artery are discussed. We also update the immunopathology of large vessel vasculitis, with a special focus on giant cell arteritis, and outline how monocytes/macrophages participate in the disease process of vascular inflammation. Finally, we discuss limitations of the current research and provide future research perspectives, particularly in humans. Through these processes, we explore the possibility of therapeutic strategies targeting monocytes/macrophages in vasculitis.
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Watanabe R, Hashimoto M. Aging-Related Vascular Inflammation: Giant Cell Arteritis and Neurological Disorders. Front Aging Neurosci 2022; 14:843305. [PMID: 35493934 PMCID: PMC9039280 DOI: 10.3389/fnagi.2022.843305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 03/22/2022] [Indexed: 12/16/2022] Open
Abstract
Aging is characterized by the functional decline of the immune system and constitutes the primary risk factor for infectious diseases, cardiovascular disorders, cancer, and neurodegenerative disorders. Blood vessels are immune-privileged sites and consist of endothelial cells, vascular smooth muscle cells, macrophages, dendritic cells, fibroblasts, and pericytes, among others. Aging also termed senescence inevitably affects blood vessels, making them vulnerable to inflammation. Atherosclerosis causes low-grade inflammation from the endothelial side; whereas giant cell arteritis (GCA) causes intense inflammation from the adventitial side. GCA is the most common autoimmune vasculitis in the elderly characterized by the formation of granulomas composed of T cells and macrophages in medium- and large-sized vessels. Recent studies explored the pathophysiology of GCA at unprecedented resolutions, and shed new light on cellular signaling pathways and metabolic fitness in wall-destructive T cells and macrophages. Moreover, recent reports have revealed that not only can cerebrovascular disorders, such as stroke and ischemic optic neuropathy, be initial or coexistent manifestations of GCA, but the same is true for dementia and neurodegenerative disorders. In this review, we first outline how aging affects vascular homeostasis. Subsequently, we review the updated pathophysiology of GCA and explain the similarities and differences between vascular aging and GCA. Then, we introduce the possible link between T cell aging, neurological aging, and GCA. Finally, we discuss therapeutic strategies targeting both senescence and vascular inflammation.
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van Sleen Y, Therkildsen P, Nielsen BD, van der Geest KSM, Hansen I, Heeringa P, Posthumus MD, Sandovici M, Toonen EJM, Zijlstra J, Boots AMH, Hauge EM, Brouwer E. Angiopoietin-2/-1 ratios and MMP-3 levels as an early warning sign for the presence of giant cell arteritis in patients with polymyalgia rheumatica. Arthritis Res Ther 2022; 24:65. [PMID: 35255968 PMCID: PMC8900446 DOI: 10.1186/s13075-022-02754-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/01/2022] [Indexed: 11/29/2022] Open
Abstract
Background Diagnosing patients with giant cell arteritis (GCA) remains difficult. Due to its non-specific symptoms, it is challenging to identify GCA in patients presenting with symptoms of polymyalgia rheumatica (PMR), which is a more common disease. Also, commonly used acute-phase markers CRP and ESR fail to discriminate GCA patients from PMR and (infectious) mimicry patients. Therefore, we investigated biomarkers reflecting vessel wall inflammation for their utility in the accurate diagnosis of GCA in two international cohorts. Methods Treatment-naïve GCA patients participated in the Aarhus AGP cohort (N = 52) and the Groningen GPS cohort (N = 48). The AGP and GPS biomarker levels and symptoms were compared to patients presenting phenotypically as isolated PMR, infectious mimicry controls and healthy controls (HCs). Serum/plasma levels of 12 biomarkers were measured by ELISA or Luminex. Results In both the AGP and the GPS cohort, we found that weight loss, elevated erythrocyte sedimentation rate (ESR) and higher angiopoietin-2/-1 ratios but lower matrix metalloproteinase (MMP)-3 levels identify concomitant GCA in PMR patients. In addition, we confirmed that elevated platelet counts are characteristic of GCA but not of GCA mimicry controls and that low MMP-3 and proteinase 3 (PR3) levels may help to discriminate GCA from infections. Conclusion This study, performed in two independent international cohorts, consistently shows the potential of angiopoietin-2/-1 ratios and MMP-3 levels to identify GCA in patients presenting with PMR. These biomarkers may be used to select which PMR patients require further diagnostic workup. Platelet counts may be used to discriminate GCA from GCA look-alike patients. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02754-5.
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Affiliation(s)
- Yannick van Sleen
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, the Netherlands.
| | - Philip Therkildsen
- Department of Rheumatology, Aarhus University Hospital, Aarhus N, Denmark
| | - Berit Dalsgaard Nielsen
- Department of Rheumatology, Aarhus University Hospital, Aarhus N, Denmark.,Department of Medicine, Horsens Regional Hospital, Horsens, Denmark
| | - Kornelis S M van der Geest
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, the Netherlands
| | - Ib Hansen
- Department of Rheumatology, Aarhus University Hospital, Aarhus N, Denmark
| | - Peter Heeringa
- Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, the Netherlands
| | - Marcel D Posthumus
- Department of Orthopaedic Surgery, Martini Hospital, Groningen, the Netherlands
| | - Maria Sandovici
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, the Netherlands
| | | | - Jannik Zijlstra
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, the Netherlands
| | - Annemieke M H Boots
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, the Netherlands
| | | | - Elisabeth Brouwer
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, Hanzeplein 1, Groningen, 9700 RB, the Netherlands
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Ciccia F, Macaluso F, Mauro D, Nicoletti GF, Croci S, Salvarani C. New insights into the pathogenesis of giant cell arteritis: are they relevant for precision medicine? THE LANCET. RHEUMATOLOGY 2021; 3:e874-e885. [PMID: 38287633 DOI: 10.1016/s2665-9913(21)00253-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/15/2021] [Accepted: 07/28/2021] [Indexed: 02/06/2023]
Abstract
Giant cell arteritis is a primary granulomatous vasculitis characterised by a strict tissue tropism for large and medium-size vessels, occurring in people older than 50 years. Although considerable progress in understanding some of the pathophysiological mechanisms involved in the pathogenesis of giant cell arteritis has been made in the past 10 years, specific triggers of disease and mechanisms of chronic damage have not yet been identified. The definition of a specific pro-inflammatory hierarchy between the multiple cell types and the different cytokines or chemokines involved in the inflammatory process are still unexplored areas of study. The overall goal of precision medicine is to identify the best possible therapeutic approach for an individual or group of individuals with a given disease. The fundamental prerequisite of this approach is the identification, at baseline, of clinical and imaging findings and of molecular biomarkers that allow a precise stratification of patients and an adequate prediction of the therapeutic response. In this regard, the possibility of obtaining temporal artery biopsies for diagnostic purposes offers incredible exploratory possibilities to define different disease pathotypes potentially susceptible to different therapeutic interventions. In this Series paper, we will describe the most recent evidence relating to the pathogenesis of giant cell arteritis, trying to define, if possible, a new pathogenetic-centred approach to patients with giant cell arteritis.
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Affiliation(s)
- Francesco Ciccia
- Department of Precision Medicine, Section of Rheumatology, Università della Campania L Vanvitelli, Naples, Italy.
| | - Federica Macaluso
- Department of Precision Medicine, Section of Rheumatology, Università della Campania L Vanvitelli, Naples, Italy; Dipartimento Specialità Mediche, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Daniele Mauro
- Department of Precision Medicine, Section of Rheumatology, Università della Campania L Vanvitelli, Naples, Italy
| | - Giovanni Francesco Nicoletti
- Dipartimento Multidisciplinare di Specialità Medico-Chirurgiche e Odontoiatriche, Università della Campania L Vanvitelli, Naples, Italy
| | - Stefania Croci
- Autoimmunità, Allergologia e Biotecnologie Innovative, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Carlo Salvarani
- Dipartimento Specialità Mediche, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy; Dipartimento Chirurgico, Medico, Odontoiatrico e di Scienze Morfologiche con interesse Trapiantologico, Oncologico e di Medicina Rigenerativa, Università di Modena e Reggio Emilia, Modena, Italy.
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Matrix metalloproteinase-2 and matrix metalloproteinase-9 serum levels in patients with vertebrobasilar dolichoectasia with and without stroke: case-control study. Neuroradiology 2021; 64:1187-1193. [PMID: 34845504 DOI: 10.1007/s00234-021-02869-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 11/23/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE To describe the differences in the serum levels of MMP-2 and MMP-9 of patients with vertebrobasilar dolichoectasia (VBD) with and without acute stroke. METHODS Case-control study. From an outpatient clinic, we recruited 14 controls and 19 patients with VBD. We also recruited 33 patients with stroke from two emergency departments, 14 without VBD (S/-VBD) and 19 with VBD (S/ + VBD). All the patients underwent serum MMP-2 and MMP-9 measurements and a non-contrast CT scan. Two investigators assessed the intracranial vertebral arteries (VA) and the basilar artery (BA) at the mid-pons. Diagnosis of VBD was made if the BA diameter was ≥ 4.5 mm. RESULTS The mean age of the 66 patients studied was 57.6 + 16.0 years, 41% female. In the 33 patients with stroke, the median NIHSS was 8 (range 15); there were no differences in the NIHSS scores between both groups with stroke. Median MMP-2 levels were lower in the S/-VBD when compared to controls. Median MMP-9 serum levels were higher in both groups with VBD when compared to controls and the S/-VDB group. Both groups with stroke exhibited higher MMP-9 serum levels than controls but were not statistically different from those found in patients with VBD. Serum levels of MMP-9 were significantly correlated with the diameters of the BA (r = 0.344, p = 0.01) and the left VA (r = 0.305, p = 0.05). CONCLUSION This study found that high serum levels of MMP-9 are associated with VBD independently of stroke and correlated with the degree of VBD.
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Functionally Heterogenous Macrophage Subsets in the Pathogenesis of Giant Cell Arteritis: Novel Targets for Disease Monitoring and Treatment. J Clin Med 2021; 10:jcm10214958. [PMID: 34768479 PMCID: PMC8585092 DOI: 10.3390/jcm10214958] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/20/2021] [Accepted: 10/23/2021] [Indexed: 12/19/2022] Open
Abstract
Giant cell arteritis (GCA) is a granulomatous large-vessel vasculitis that affects adults above 50 years of age. In GCA, circulating monocytes are recruited to the inflamed arteries. With cues from the vascular microenvironment, they differentiate into macrophages and play important roles in the pathogenesis of GCA via pro-inflammatory cytokine production and vascular remodeling. However, a deeper understanding of macrophage heterogeneity in GCA pathogenesis is needed to assist the development of novel diagnostic tools and targeted therapies. Here, we review the current knowledge on macrophage heterogeneity and diverse functions of macrophage subsets in the pathogenesis of GCA. We next discuss the possibility to exploit their heterogeneity as a source of novel biomarkers and as targets for nuclear imaging. Finally, we discuss novel macrophage-targeted therapies and future directions for targeting these cells in GCA.
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Dysregulated Expression of Arterial MicroRNAs and Their Target Gene Networks in Temporal Arteries of Treatment-Naïve Patients with Giant Cell Arteritis. Int J Mol Sci 2021; 22:ijms22126520. [PMID: 34204585 PMCID: PMC8234166 DOI: 10.3390/ijms22126520] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/04/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
In this study, we explored expression of microRNA (miR), miR-target genes and matrix remodelling molecules in temporal artery biopsies (TABs) from treatment-naïve patients with giant cell arteritis (GCA, n = 41) and integrated these analyses with clinical, laboratory, ultrasound and histological manifestations of GCA. NonGCA patients (n = 4) served as controls. GCA TABs exhibited deregulated expression of several miRs (miR-21-5p, -145-5p, -146a-5p, -146b-5p, -155-5p, 424-3p, -424-5p, -503-5p), putative miR-target genes (YAP1, PELI1, FGF2, VEGFA, KLF4) and matrix remodelling factors (MMP2, MMP9, TIMP1, TIPM2) with key roles in Toll-like receptor signaling, mechanotransduction and extracellular matrix biology. MiR-424-3p, -503-5p, KLF4, PELI1 and YAP1 were identified as new deregulated molecular factors in GCA TABs. Quantities of miR-146a-5p, YAP1, PELI1, FGF2, TIMP2 and MMP9 were particularly high in histologically positive GCA TABs with occluded temporal artery lumen. MiR-424-5p expression in TABs and the presence of facial or carotid arteritis on ultrasound were associated with vision disturbances in GCA patients. Correlative analysis of miR-mRNA quantities demonstrated a highly interrelated expression network of deregulated miRs and mRNAs in temporal arteries and identified KLF4 as a candidate target gene of deregulated miR-21-5p, -146a-5p and -155-5p network in GCA TABs. Meanwhile, arterial miR and mRNA expression did not correlate with constitutive symptoms and signs of GCA, elevated markers of systemic inflammation nor sonographic characteristics of GCA. Our study provides new insights into GCA pathophysiology and uncovers new candidate biomarkers of vision impairment in GCA.
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Parreau S, Vedrenne N, Regent A, Richard L, Sindou P, Mouthon L, Fauchais AL, Jauberteau MO, Ly KH. An immunohistochemical analysis of fibroblasts in giant cell arteritis. Ann Diagn Pathol 2021; 52:151728. [PMID: 33798926 DOI: 10.1016/j.anndiagpath.2021.151728] [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: 09/19/2020] [Accepted: 02/26/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Giant cell arteritis (GCA) is a systemic vasculitis of large and medium vessels characterized by an inflammatory arterial infiltrate. GCA begins in the adventitia and leads to vascular remodeling by promoting proliferation of myofibroblasts in the intima. The morphology of the fibroblasts in the adventitia in GCA is unclear. Access to temporal artery biopsies allows morphological studies and evaluation of the microenvironment of the arterial wall. We evaluated the distribution of vascular fibroblasts and of markers of their activation in GCA. METHODS Formalin-fixed paraffin-embedded tissue sections from 29 patients with GCA and 36 controls were examined. Immunohistochemistry was performed for CD90, vimentin, desmin, alpha-smooth muscle actin (ASMA), prolyl-4-hydroxylase (P4H), and myosin to evaluate the distribution of fibroblasts within the intima, media, and adventitia. RESULTS Temporal arteries from patients with GCA showed increased levels of CD90, vimentin, and ASMA in the adventitia and intima compared to the controls. Desmin was expressed only in the media in both groups. P4H was expressed similarly in the adventitia and intima in the two groups. Adventitial and intimal CD90+ cells co-expressed P4H, ASMA, and myosin at a high level in GCA. CONCLUSION The results suggest a role for adventitial fibroblasts in GCA. Inhibiting the differentiation of adventitial fibroblasts to myofibroblasts has therapeutic potential for GCA.
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Affiliation(s)
- Simon Parreau
- Department of Internal Medicine, Dupuytren Hospital, Limoges, France; EA3842-CaPTuR, Contrôle de l'Activation Cellulaire, Progression Tumorale et Résistance thérapeutique, Faculty of Medicine, Limoges, France.
| | - Nicolas Vedrenne
- EA3842-CaPTuR, Contrôle de l'Activation Cellulaire, Progression Tumorale et Résistance thérapeutique, Faculty of Medicine, Limoges, France
| | - Alexis Regent
- Department of Internal Medicine, Cochin Hospital, Paris, France
| | | | - Philippe Sindou
- EA3842-CaPTuR, Contrôle de l'Activation Cellulaire, Progression Tumorale et Résistance thérapeutique, Faculty of Medicine, Limoges, France
| | - Luc Mouthon
- Department of Internal Medicine, Cochin Hospital, Paris, France
| | - Anne-Laure Fauchais
- Department of Internal Medicine, Dupuytren Hospital, Limoges, France; EA3842-CaPTuR, Contrôle de l'Activation Cellulaire, Progression Tumorale et Résistance thérapeutique, Faculty of Medicine, Limoges, France
| | - Marie-Odile Jauberteau
- EA3842-CaPTuR, Contrôle de l'Activation Cellulaire, Progression Tumorale et Résistance thérapeutique, Faculty of Medicine, Limoges, France
| | - Kim-Heang Ly
- Department of Internal Medicine, Dupuytren Hospital, Limoges, France; EA3842-CaPTuR, Contrôle de l'Activation Cellulaire, Progression Tumorale et Résistance thérapeutique, Faculty of Medicine, Limoges, France
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Akiyama M, Ohtsuki S, Berry GJ, Liang DH, Goronzy JJ, Weyand CM. Innate and Adaptive Immunity in Giant Cell Arteritis. Front Immunol 2021; 11:621098. [PMID: 33717054 PMCID: PMC7947610 DOI: 10.3389/fimmu.2020.621098] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 12/24/2020] [Indexed: 12/15/2022] Open
Abstract
Autoimmune diseases can afflict every organ system, including blood vessels that are critically important for host survival. The most frequent autoimmune vasculitis is giant cell arteritis (GCA), which causes aggressive wall inflammation in medium and large arteries and results in vaso-occlusive wall remodeling. GCA shares with other autoimmune diseases that it occurs in genetically predisposed individuals, that females are at higher risk, and that environmental triggers are suspected to beget the loss of immunological tolerance. GCA has features that distinguish it from other autoimmune diseases and predict the need for tailored diagnostic and therapeutic approaches. At the core of GCA pathology are CD4+ T cells that gain access to the protected tissue niche of the vessel wall, differentiate into cytokine producers, attain tissue residency, and enforce macrophages differentiation into tissue-destructive effector cells. Several signaling pathways have been implicated in initiating and sustaining pathogenic CD4+ T cell function, including the NOTCH1-Jagged1 pathway, the CD28 co-stimulatory pathway, the PD-1/PD-L1 co-inhibitory pathway, and the JAK/STAT signaling pathway. Inadequacy of mechanisms that normally dampen immune responses, such as defective expression of the PD-L1 ligand and malfunction of immunosuppressive CD8+ T regulatory cells are a common theme in GCA immunopathology. Recent studies are providing a string of novel mechanisms that will permit more precise pathogenic modeling and therapeutic targeting in GCA and will fundamentally inform how abnormal immune responses in blood vessels lead to disease.
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Affiliation(s)
- Mitsuhiro Akiyama
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Shozo Ohtsuki
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Gerald J Berry
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States
| | - David H Liang
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Jörg J Goronzy
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Cornelia M Weyand
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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Bushueva OY. Genetic Variants rs1049255 CYBA and rs2333227 MPO are Associated with Susceptibility to Coronary Artery Disease in Russian Residents of Central Russia. KARDIOLOGIIA 2020; 60:1229. [PMID: 33228505 DOI: 10.18087/cardio.2020.10.n1229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Aim To study association of single-nucleotide polymorphisms rs1049255 CYBA and rs2333227 MPO with development of ischemic heart disease (IHD) in Russian residents of Central Russia.Material and methods The study material was DNA samples from 436 patients with IHD (265 men, 171 women; mean age, 61 years) and 370 sex- and age-matched arbitrarily healthy volunteers (209 men, 161 women; mean age, 60 years). Genotyping was performed by allelic discrimination with TaqMan probes.Results Comparative analysis of genotype frequency (log-additive regression model) showed that SNP rs1049255 CYBA (odds ratio, OR, 0.79 at 95 % confidence interval, CI, from 0.65 to 0.96; p=0.02) and rs2333227 MPO (OR 0.72 at 95 % CI from 0.55 to 0.95; p=0.02) were associated with a decreased risk of IHD adjusted for sex and age. Analysis of sex-specific effects showed that the protective effect of rs1049255 CYBA was evident only in men (OR 0.72 at 95 % CI from 0.55 to 0.94; p=0.16).Conclusion The study demonstrated a protective effect of rs1049255 CYBA and rs2333227 MPO with respect of IHD in Russians. The protective effect of rs1049255 CYBA was observed only in men.
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Deshayes S, de Boysson H, Dumont A, Vivien D, Manrique A, Aouba A. An overview of the perspectives on experimental models and new therapeutic targets in giant cell arteritis. Autoimmun Rev 2020; 19:102636. [DOI: 10.1016/j.autrev.2020.102636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 03/30/2020] [Indexed: 12/12/2022]
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21
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Jiemy WF, van Sleen Y, van der Geest KS, Ten Berge HA, Abdulahad WH, Sandovici M, Boots AM, Heeringa P, Brouwer E. Distinct macrophage phenotypes skewed by local granulocyte macrophage colony-stimulating factor (GM-CSF) and macrophage colony-stimulating factor (M-CSF) are associated with tissue destruction and intimal hyperplasia in giant cell arteritis. Clin Transl Immunology 2020; 9:e1164. [PMID: 32884747 PMCID: PMC7453134 DOI: 10.1002/cti2.1164] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/10/2020] [Accepted: 07/11/2020] [Indexed: 12/30/2022] Open
Abstract
Objective To determine the presence and spatial distribution of different macrophage phenotypes, governed by granulocyte macrophage colony‐stimulating factor (GM‐CSF) and macrophage colony‐stimulating factor (M‐CSF) skewing signals, in giant cell arteritis (GCA) lesions. Methods Temporal artery biopsies (TABs, n = 11) from treatment‐naive GCA patients, aorta samples from GCA‐related aneurysms (n = 10) and atherosclerosis (n = 10) were stained by immunohistochemistry targeting selected macrophage phenotypic markers, cytokines, matrix metalloproteinases (MMPs) and growth factors. In vitro macrophage differentiation (n = 10) followed by flow cytometry, Luminex assay and ELISA were performed to assess whether GM‐CSF and M‐CSF are drivers of macrophage phenotypic heterogeneity. Results A distinct spatial distribution pattern of macrophage phenotypes in TABs was identified. CD206+/MMP‐9+ macrophages were located at the site of tissue destruction, whereas FRβ+ macrophages were located in the inner intima of arteries with high degrees of intimal hyperplasia. Notably, this pattern was also observed in macrophage‐rich areas in GCA aortas but not in atherosclerotic aortas. Flow cytometry showed that GM‐CSF treatment highly upregulated CD206 expression, while FRβ was expressed by M‐CSF‐skewed macrophages, only. Furthermore, localised expression of GM‐CSF and M‐CSF was detected, likely contributing to macrophage heterogeneity in the vascular wall. Conclusions Our data document a distinct spatial distribution pattern of CD206+/MMP‐9+ macrophages and FRβ+ macrophages in GCA linked to tissue destruction and intimal proliferation, respectively. We suggest that these distinct macrophage phenotypes are skewed by sequential GM‐CSF and M‐CSF signals. Our study adds to a better understanding of the development and functional role of macrophage phenotypes in the pathogenesis of GCA and opens opportunities for the design of macrophage‐targeted therapies.
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Affiliation(s)
- William F Jiemy
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands.,Faculty of Applied Science UCSI University UCSI Heights Cheras, Kuala Lumpur Malaysia
| | - Yannick van Sleen
- Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Kornelis Sm van der Geest
- Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Hilde A Ten Berge
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Wayel H Abdulahad
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands.,Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Maria Sandovici
- Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Annemieke Mh Boots
- Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Peter Heeringa
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Elisabeth Brouwer
- Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen Groningen The Netherlands
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Benhuri B, ELJack A, Kahaleh B, Chakravarti R. Mechanism and biomarkers in aortitis--a review. J Mol Med (Berl) 2019; 98:11-23. [PMID: 31664480 DOI: 10.1007/s00109-019-01838-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 09/11/2019] [Accepted: 09/22/2019] [Indexed: 12/26/2022]
Abstract
Aortitis can be the manifestation of an underlying infectious or noninfectious disease process. An autoimmune cause is suggested in a large proportion of noninfectious causes. Similar to other autoimmune diseases, the pathophysiology of aortitis has been investigated in detail, but the etiology remains unknown. Most cases of aortitis often go undetected for a long time and are often identified at late stages of the disease. Recent advances in imaging techniques have significantly improved the diagnosis of aortitis. However, significant challenges associated with the imaging techniques limit their use. Several routine inflammation-based markers, such as erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and inflammatory cytokines, are nonspecific and, therefore, have limited use in the diagnosis of aortitis. The search for more specific serum biomarkers, which can facilitate detection and progression is under progress. Several autoantibodies have been identified, but assigning their role in the pathogenesis as well as their specificity remains a challenge. The current review addresses some of these issues in detail. KEY MESSAGES: • Noninfectious aortitis is an autoimmune disease. • Several biomarkers, including cytokines and autoantibodies, are increased in aortitis. • Imaging techniques, commonly used to detect aortitis, are associated with the high cost and technical challenges. • There is a need to develop low-cost biomarker-based detection tools. • The knowledge of biomarkers in aortitis detection is discussed.
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Affiliation(s)
- Benjamin Benhuri
- Department of Physiology & Pharmacology, College of Medical & Life Sciences, University of Toledo College of Medicine, 3000 Arlington Ave, Toledo, OH, 43614, USA.,Department of Internal Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ammar ELJack
- Department of Physiology & Pharmacology, College of Medical & Life Sciences, University of Toledo College of Medicine, 3000 Arlington Ave, Toledo, OH, 43614, USA.,Depatment of Intenal Medicine, Beaumont Hospital, Dearborn, MI, 48124, USA
| | - Bashar Kahaleh
- Division of Rheumatology, University of Toledo College of Medicine, 3000 Arlington Ave, Toledo, OH, 43614, USA
| | - Ritu Chakravarti
- Department of Physiology & Pharmacology, College of Medical & Life Sciences, University of Toledo College of Medicine, 3000 Arlington Ave, Toledo, OH, 43614, USA.
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23
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Watanabe R, Maeda T, Zhang H, Berry GJ, Zeisbrich M, Brockett R, Greenstein AE, Tian L, Goronzy JJ, Weyand CM. MMP (Matrix Metalloprotease)-9-Producing Monocytes Enable T Cells to Invade the Vessel Wall and Cause Vasculitis. Circ Res 2019; 123:700-715. [PMID: 29970365 DOI: 10.1161/circresaha.118.313206] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
RATIONALE Giant cell arteritis (GCA)-a primary vasculitis of medium and large arteries-is associated with vessel wall damage, elastic membrane fragmentation, and vascular remodeling. Proteinases are believed to contribute to pathogenesis by degrading extracellular matrix and causing tissue injury. OBJECTIVE The MMP (matrix metalloproteinase)-9-a type IV collagenase-is produced in the vasculitic lesions of GCA. It is unknown which pathogenic processes are MMP-9 dependent. METHODS AND RESULTS The tissue transcriptome of GCA-affected temporal arteries contained high amounts of MMP-9 transcripts, and immunostaining for pro-MMP-9 localized the enzyme to wall-infiltrating macrophages. MMP-2 and MMP-9 transcripts were also abundant in monocytes and monocyte-derived macrophages from patients with GCA. Patient-derived monocytes outperformed healthy monocytes in passing through engineered basement membranes. GCA CD (cluster of differentiation) 4+ T cells required MMP-9-producing monocytes to penetrate through matrix built from type IV collagen. In vivo functions of MMP-9 were tested in a human artery-SCID (severe combined immunodeficiency) chimera model by blocking enzyme activity with a highly specific monoclonal antibody or by injecting rMMP-9 (recombinant MMP-9). Inhibiting MMP-9 activity profoundly suppressed vascular injury, decreased the density of inflammatory infiltrates ( P<0.001), reduced intramural neoangiogenesis ( P<0.001), and prevented intimal layer hyperplasia ( P<0.001). rMMP-9 amplified all domains of vasculitic activity, promoted assembly of T-cell infiltrates ( P<0.05), intensified formation of new microvessels ( P<0.001), and worsened intimal thickening ( P<0.001). Systemic delivery of N-acetyl-proline-glycine-proline-a matrikine produced by MMP-9-mediated gelatinolysis-had limited vasculitogenic effects. CONCLUSIONS In large vessel vasculitis, MMP-9 controls the access of monocytes and T cells to the vascular wall. T cells depend on MMP-9-producing monocytes to pass through collagen IV-containing basement membrane. Invasion of vasculitogenic T cells and monocytes, formation of neoangiogenic networks, and neointimal growth all require the enzymatic activity of MMP-9, identifying this protease as a potential therapeutic target to restore the immunoprivilege of the arterial wall in large vessel vasculitis.
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Affiliation(s)
- Ryu Watanabe
- From the Division of Immunology and Rheumatology, Department of Medicine (R.W., T.M., H.Z., M.Z., J.J.G., C.M.W.)
| | - Toshihisa Maeda
- From the Division of Immunology and Rheumatology, Department of Medicine (R.W., T.M., H.Z., M.Z., J.J.G., C.M.W.)
| | - Hui Zhang
- From the Division of Immunology and Rheumatology, Department of Medicine (R.W., T.M., H.Z., M.Z., J.J.G., C.M.W.)
| | | | - Markus Zeisbrich
- From the Division of Immunology and Rheumatology, Department of Medicine (R.W., T.M., H.Z., M.Z., J.J.G., C.M.W.)
| | | | | | - Lu Tian
- Department of Biomedical Data Science, Stanford University School of Medicine, CA (L.T.)
| | - Jörg J Goronzy
- From the Division of Immunology and Rheumatology, Department of Medicine (R.W., T.M., H.Z., M.Z., J.J.G., C.M.W.)
| | - Cornelia M Weyand
- From the Division of Immunology and Rheumatology, Department of Medicine (R.W., T.M., H.Z., M.Z., J.J.G., C.M.W.)
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24
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[Physiopathology of giant cell arteritis: From inflammation to vascular remodeling]. Presse Med 2019; 48:919-930. [PMID: 31543394 DOI: 10.1016/j.lpm.2019.07.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/10/2019] [Accepted: 07/23/2019] [Indexed: 12/13/2022] Open
Abstract
Giant cell arteritis (GCA) is a large-vessel vasculitis involving the aorta and its main branches, especially supra aortic branches. Although much progress has been made, the pathophysiology remains incompletely understood. An initial trigger, suspected of infectious origin, lead to the maturation and recruitment of dendritic cells (DC). The lack of migration of these DC allows the local recruitment of T-lymphocytes (LT). These LT- CD4+ polarize in Type 1 helper (Th1), Th17 but also Th9. A qualitative and quantitative deficit in regulatory T cells (Treg) is observed under the influence of IL-21 overproduction. In addition, an imbalance in the Th17/Treg balance is favored by IL-6. The secretion of IFN-γ, IL-17, IL-6, IL-33 is responsible for a sustained local inflammatory reaction that is organized around tertiary lymphoid follicles. Locally recruited macrophages secrete reactive forms of oxygen together with VEGF and PDGF. These growth factors, together with neurotrophins and endothelin contribute to increase the proliferation of vascular smooth muscle cells (VSMCs). The imbalance between matrix metalloproteases (MMP)-2, MMP-9 and MMP-14 and tissue inhibitors of metalloproteases (TIMP)-1 and TIMP-2 also contribute to the remodeling process occurring in the vessel wall. Finally, arterial neovascularization contribute to the perpetuation of lymphocyte recruitment. This persistent remodeling is sometimes complicated by ischemic events responsible for the initial severity of the disease.
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25
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Affiliation(s)
- Ryszard Nosalski
- From the Institute of Cardiovascular and Medical Sciences (R.N., P.M., T.J.G.).,College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Internal Medicine, Jagiellonian University Medical College, Kraków, Poland (R.N., T.J.G.)
| | - Pasquale Maffia
- From the Institute of Cardiovascular and Medical Sciences (R.N., P.M., T.J.G.).,Centre for Immunobiology, Institute of Infection, Immunity and Inflammation (P.M.).,Department of Pharmacy, University of Naples Federico II, Italy (P.M.)
| | - Tomasz J Guzik
- From the Institute of Cardiovascular and Medical Sciences (R.N., P.M., T.J.G.).,College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom; Department of Internal Medicine, Jagiellonian University Medical College, Kraków, Poland (R.N., T.J.G.)
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26
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Weyand CM, Watanabe R, Zhang H, Akiyama M, Berry GJ, Goronzy JJ. Cytokines, growth factors and proteases in medium and large vessel vasculitis. Clin Immunol 2019; 206:33-41. [PMID: 30772599 PMCID: PMC6693995 DOI: 10.1016/j.clim.2019.02.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 02/06/2023]
Abstract
Giant cell arteritis and Takayasu arteritis are autoimmune vasculitides that cause aneurysm formation and tissue infarction. Extravascular inflammation consists of an intense acute phase response. Deeper understanding of pathogenic events in the vessel wall has highlighted the loss of tissue protective mechanisms, the intrusion of immune cells into "forbidden territory", and the autonomy of self-renewing vasculitic infiltrates. Adventitial vasa vasora critically control vessel wall access and drive differentiation of tissue-invasive T cells. Selected T cells establish tissue residency and build autonomous, self-sufficient inflammatory lesions. Pathogenic effector T cells intrude and survive due to failed immune checkpoint inhibition. Vasculitis-sustaining T cells and macrophages provide a broad portfolio of effector functions, involving heterogeneous populations of pro-inflammatory T cells and diverse macrophage subsets that ultimately induce wall capillarization and intimal hyperplasia. Redirecting diagnostic and therapeutic strategies from control of extravascular inflammatory markers to suppression of vascular inflammation will improve disease management.
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Affiliation(s)
- Cornelia M Weyand
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, USA.
| | - Ryu Watanabe
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, USA
| | - Hui Zhang
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, USA
| | - Mitsuhiro Akiyama
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, USA
| | - Gerald J Berry
- Department of Pathology, Stanford University School of Medicine, USA
| | - Jörg J Goronzy
- Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, USA
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27
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Rodriguez-Pla A, Warner RL, Cuthbertson D, Carette S, Khalidi NA, Koening CL, Langford CA, McAlear CA, Moreland LW, Pagnoux C, Seo P, Specks U, Sreih AG, Ytterberg SR, Johnson KJ, Merkel PA, Monach PA. Evaluation of Potential Serum Biomarkers of Disease Activity in Diverse Forms of Vasculitis. J Rheumatol 2019; 47:1001-1010. [PMID: 31474593 PMCID: PMC7050393 DOI: 10.3899/jrheum.190093] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2019] [Indexed: 01/09/2023]
Abstract
OBJECTIVE We evaluated potential circulating biomarkers of disease activity in giant cell arteritis (GCA), Takayasu arteritis (TA), polyarteritis nodosa (PAN), and eosinophilic granulomatosis with polyangiitis (EGPA). METHODS A panel of 22 serum proteins was tested in patients enrolled in the Vasculitis Clinical Research Consortium Longitudinal Studies of GCA, TA, PAN, or EGPA. Mixed models were used for most analyses. A J48 classification tree method was used to find the most relevant markers to differentiate between active and inactive GCA. RESULTS Tests were done on 418 samples from 152 patients (60 GCA, 29 TA, 26 PAN, 37 EGPA), during both active vasculitis and remission. In GCA, these showed significant (p < 0.05) differences between disease states: B cell-attracting chemokine 1 (BCA)-1/CXC motif ligand 13 (CXCL13), erythrocyte sedimentation rate (ESR), interferon-γ-induced protein 10/CXC motif chemokine 10, soluble interleukin 2 receptor α (sIL-2Rα), and tissue inhibitor of metalloproteinase-1 (TIMP-1). In EGPA, these showed significant increases during active disease: granulocyte colony-stimulating factor (G-CSF), granulocyte-macrophage-CSF, interleukin (IL)-6, IL-15, and sIL-2Rα. BCA-1/CXCL13 also showed such increases, but only after adjustment for treatment. In PAN, ESR and matrix metalloprotease (MMP)-3 showed significant differences between disease states. Differences in biomarker levels between diseases were significant for 11 markers and were more striking (all p < 0.01) than differences related to disease activity. A combination of lower values of TIMP-1, IL-6, interferon-γ, and MMP-3 correctly classified 87% of samples with inactive GCA. CONCLUSION We identified novel biomarkers of disease activity in GCA and EGPA. Differences of biomarker levels between diseases, independent of disease activity, were more apparent than differences related to disease activity. Further studies are needed to determine whether these serum proteins have potential for clinical use in distinguishing active disease from remission or in predicting longer-term outcomes.
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Affiliation(s)
- Alicia Rodriguez-Pla
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Roscoe L Warner
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - David Cuthbertson
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Simon Carette
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Nader A Khalidi
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Curry L Koening
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Carol A Langford
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Carol A McAlear
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Larry W Moreland
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Christian Pagnoux
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Philip Seo
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Ulrich Specks
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Antoine G Sreih
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Steven R Ytterberg
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Kent J Johnson
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
| | - Peter A Merkel
- From Boston University, Boston, Massachusetts; University of Arizona, Tucson, Arizona; University of Michigan, Ann Arbor, Michigan; University of South Florida, Tampa, Florida, USA; Mount Sinai Hospital, Toronto; McMaster University, Hamilton, Ontario, Canada; University of Utah, Salt Lake City, Utah; Cleveland Clinic, Cleveland, Ohio; University of Pennsylvania, Philadelphia; University of Pittsburgh, Pittsburgh, Pennsylvania; Johns Hopkins University, Baltimore, Maryland; Mayo Clinic, Rochester, Minnesota; VA Boston Healthcare System, Boston, Massachusetts, USA.,A. Rodriguez-Pla, MD, PhD, MPH, Boston University, and the University of Arizona; R.L. Warner, PhD, University of Michigan; D. Cuthbertson, MS, University of South Florida; S. Carette, MD, Mount Sinai Hospital; N.A. Khalidi, MD, McMaster University; C.L. Koening, MD, MS, University of Utah; C.A. Langford, MD, MHS, Cleveland Clinic; C.A. McAlear, MD, University of Pennsylvania; L.W. Moreland, MD, University of Pittsburgh; C. Pagnoux, MD, MPH, Mount Sinai Hospital; P. Seo, MD, MHS, Johns Hopkins University; U. Specks, MD, Mayo Clinic; A.G. Sreih, MD, University of Pennsylvania; S.R. Ytterberg, MD, Mayo Clinic; K.J. Johnson, MD, University of Arizona; P.A. Merkel, MD, MPH, University of Pennsylvania; P.A. Monach, MD, PhD, Boston University, and the VA Boston Healthcare System
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Harky A, Fok M, Balmforth D, Bashir M. Pathogenesis of large vessel vasculitis: Implications for disease classification and future therapies. Vasc Med 2018; 24:79-88. [PMID: 30355272 DOI: 10.1177/1358863x18802989] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Despite being recognised over a century ago, the aetiology and pathogenesis of large vessel vasculitis (LVV) still remains elusive. Takayasu’s arteritis (TA) and giant cell arteritis (GCA) represent the two major categories of LVV, each with distinctive clinical features. Over the last 10 years an increased understanding of the immunopathogenesis of the inflammatory cascade within the aortic wall has revived the view that LVVs may represent subtypes of the same pathological process, with implications in the treatment of this disease. In this review, the histological, genetic and immunopathological features of TA and GCA will be discussed and the evidence for a common underlying disease mechanism examined. Novel markers of disease activity and therapies based on advances in our understanding of the immunopathogenesis of these conditions will also be discussed.
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Affiliation(s)
- Amer Harky
- Department of Vascular Surgery, Countess of Chester Hospital, Chester, UK
| | - Matthew Fok
- Department of General Surgery, Peterborough City Hospital, Peterborough, UK
| | - Damian Balmforth
- Barts Heart Centre, St Bartholomew’s Hospital, West Smithfield, UK
| | - Mohamad Bashir
- Department of Aortovascular Surgery, Manchester Royal Infirmary, Manchester, UK
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29
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Liu Z, Khalil RA. Evolving mechanisms of vascular smooth muscle contraction highlight key targets in vascular disease. Biochem Pharmacol 2018; 153:91-122. [PMID: 29452094 PMCID: PMC5959760 DOI: 10.1016/j.bcp.2018.02.012] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 02/12/2018] [Indexed: 12/11/2022]
Abstract
Vascular smooth muscle (VSM) plays an important role in the regulation of vascular function. Identifying the mechanisms of VSM contraction has been a major research goal in order to determine the causes of vascular dysfunction and exaggerated vasoconstriction in vascular disease. Major discoveries over several decades have helped to better understand the mechanisms of VSM contraction. Ca2+ has been established as a major regulator of VSM contraction, and its sources, cytosolic levels, homeostatic mechanisms and subcellular distribution have been defined. Biochemical studies have also suggested that stimulation of Gq protein-coupled membrane receptors activates phospholipase C and promotes the hydrolysis of membrane phospholipids into inositol 1,4,5-trisphosphate (IP3) and diacylglycerol (DAG). IP3 stimulates initial Ca2+ release from the sarcoplasmic reticulum, and is buttressed by Ca2+ influx through voltage-dependent, receptor-operated, transient receptor potential and store-operated channels. In order to prevent large increases in cytosolic Ca2+ concentration ([Ca2+]c), Ca2+ removal mechanisms promote Ca2+ extrusion via the plasmalemmal Ca2+ pump and Na+/Ca2+ exchanger, and Ca2+ uptake by the sarcoplasmic reticulum and mitochondria, and the coordinated activities of these Ca2+ handling mechanisms help to create subplasmalemmal Ca2+ domains. Threshold increases in [Ca2+]c form a Ca2+-calmodulin complex, which activates myosin light chain (MLC) kinase, and causes MLC phosphorylation, actin-myosin interaction, and VSM contraction. Dissociations in the relationships between [Ca2+]c, MLC phosphorylation, and force have suggested additional Ca2+ sensitization mechanisms. DAG activates protein kinase C (PKC) isoforms, which directly or indirectly via mitogen-activated protein kinase phosphorylate the actin-binding proteins calponin and caldesmon and thereby enhance the myofilaments force sensitivity to Ca2+. PKC-mediated phosphorylation of PKC-potentiated phosphatase inhibitor protein-17 (CPI-17), and RhoA-mediated activation of Rho-kinase (ROCK) inhibit MLC phosphatase and in turn increase MLC phosphorylation and VSM contraction. Abnormalities in the Ca2+ handling mechanisms and PKC and ROCK activity have been associated with vascular dysfunction in multiple vascular disorders. Modulators of [Ca2+]c, PKC and ROCK activity could be useful in mitigating the increased vasoconstriction associated with vascular disease.
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Affiliation(s)
- Zhongwei Liu
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA
| | - Raouf A Khalil
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA 02115, USA.
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30
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Gloor AD, Yerly D, Adler S, Reichenbach S, Kuchen S, Seitz M, Villiger PM. Immuno-monitoring reveals an extended subclinical disease activity in tocilizumab-treated giant cell arteritis. Rheumatology (Oxford) 2018; 57:1795-1801. [DOI: 10.1093/rheumatology/key158] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
- Andrea D Gloor
- Department of Rheumatology, Immunology and Allergology, University Hospital, Bern, Switzerland
| | - Daniel Yerly
- Department of Rheumatology, Immunology and Allergology, University Hospital, Bern, Switzerland
| | - Sabine Adler
- Department of Rheumatology, Immunology and Allergology, University Hospital, Bern, Switzerland
| | - Stephan Reichenbach
- Department of Rheumatology, Immunology and Allergology, University Hospital, Bern, Switzerland
- Institute for Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Stefan Kuchen
- Department of Rheumatology, Immunology and Allergology, University Hospital, Bern, Switzerland
| | - Michael Seitz
- Department of Rheumatology, Immunology and Allergology, University Hospital, Bern, Switzerland
| | - Peter M Villiger
- Department of Rheumatology, Immunology and Allergology, University Hospital, Bern, Switzerland
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A concise review of significantly modified serological biomarkers in giant cell arteritis, as detected by different methods. Autoimmun Rev 2018; 17:188-194. [DOI: 10.1016/j.autrev.2017.11.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kistner A, Bigler MB, Glatz K, Egli SB, Baldin FS, Marquardsen FA, Mehling M, Rentsch KM, Staub D, Aschwanden M, Recher M, Daikeler T, Berger CT. Characteristics of autoantibodies targeting 14-3-3 proteins and their association with clinical features in newly diagnosed giant cell arteritis. Rheumatology (Oxford) 2017; 56:829-834. [PMID: 28064210 DOI: 10.1093/rheumatology/kew469] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Indexed: 01/21/2023] Open
Abstract
Objectives Autoantibodies are useful biomarkers for diagnosing and monitoring treatment in some autoimmune diseases. Antibodies against isoforms of 14-3-3 protein have been proposed as biomarkers for the presence of aortic aneurysm in large-vessel vasculitis (LVV). Here, we aimed to evaluate the diagnostic role and potential immunopathological involvement of anti-14-3-3 antibodies in newly diagnosed LVV patients. Methods Antibodies against three isoforms of 14-3-3 (γ, ɛ and ζ) were measured in 90 subjects: 48 GCA and 3 Takayasu's arteritis (TA) patients, and 39 controls (non-inflammatory and inflammatory diseases), using a multiplexed bead-based immunoassay and immunoprecipitation studies. The positive cut-off value was defined based on young healthy controls. Anti-14-3-3 IgG antibodies in LVV patients were compared with those in controls in order to assess their diagnostic performance, and the relationship of anti-14-3-3 IgG antibodies to the immunohistopathology of artery explants was assessed. Results Antibodies against all three 14-3-3 isoforms were detected in LVV patients as well as in age-matched inflammatory and non-inflammatory controls. Among LVV patients, detection of antibodies targeting 14-3-3 ɛ and ζ was associated with more severe disease. Detection of antibodies against 14-3-3 γ was linked to latent Toxoplasma gondii infection, a parasite that secrets a 14-3-3 homologue, suggesting potential cross-reactivity. Conclusion Detection of antibodies against 14-3-3 proteins at the time of LVV diagnosis is not disease-specific. Their presence at high levels in LVV patients with stroke, aortitis and-in a previous study-aneurysm formation may indicate an association with extensive tissue destruction. The relevance of 14-3-3 antibodies in non-LVV patients needs to be investigated in larger cohorts.
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Affiliation(s)
- Anne Kistner
- Translational Immunology, Department of Biomedicine
| | | | | | - Simon B Egli
- Translational Immunology, Department of Biomedicine
| | | | | | | | | | | | | | - Mike Recher
- Department of Biomedicine, Immunodeficiency Laboratory
- Immunodeficiency Clinic
| | | | - Christoph T Berger
- Translational Immunology, Department of Biomedicine
- Medical Outpatient Clinic, Department of Internal Medicine, University Basel Hospital, Basel, Switzerland
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Molecular analysis of vascular smooth muscle cells from patients with giant cell arteritis: Targeting endothelin-1 receptor to control proliferation. Autoimmun Rev 2017; 16:398-406. [DOI: 10.1016/j.autrev.2017.02.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 12/16/2016] [Indexed: 01/06/2023]
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Banerjee S, Stapleton PP, Dasgupta B. Emerging therapies in large vessel vasculitis. Int J Rheum Dis 2016; 19:741-6. [DOI: 10.1111/1756-185x.12963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Siwalik Banerjee
- Department of Rheumatology; Southend University Hospital; Essex UK
| | | | - Bhaskar Dasgupta
- Department of Rheumatology; Southend University Hospital; Essex UK
- University of Essex; Colchester UK
- Anglia Ruskin University; Essex UK
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Ringvold HC, Khalil RA. Protein Kinase C as Regulator of Vascular Smooth Muscle Function and Potential Target in Vascular Disorders. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2016; 78:203-301. [PMID: 28212798 PMCID: PMC5319769 DOI: 10.1016/bs.apha.2016.06.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Vascular smooth muscle (VSM) plays an important role in maintaining vascular tone. In addition to Ca2+-dependent myosin light chain (MLC) phosphorylation, protein kinase C (PKC) is a major regulator of VSM function. PKC is a family of conventional Ca2+-dependent α, β, and γ, novel Ca2+-independent δ, ɛ, θ, and η, and atypical ξ, and ι/λ isoforms. Inactive PKC is mainly cytosolic, and upon activation it undergoes phosphorylation, maturation, and translocation to the surface membrane, the nucleus, endoplasmic reticulum, and other cell organelles; a process facilitated by scaffold proteins such as RACKs. Activated PKC phosphorylates different substrates including ion channels, pumps, and nuclear proteins. PKC also phosphorylates CPI-17 leading to inhibition of MLC phosphatase, increased MLC phosphorylation, and enhanced VSM contraction. PKC could also initiate a cascade of protein kinases leading to phosphorylation of the actin-binding proteins calponin and caldesmon, increased actin-myosin interaction, and VSM contraction. Increased PKC activity has been associated with vascular disorders including ischemia-reperfusion injury, coronary artery disease, hypertension, and diabetic vasculopathy. PKC inhibitors could test the role of PKC in different systems and could reduce PKC hyperactivity in vascular disorders. First-generation PKC inhibitors such as staurosporine and chelerythrine are not very specific. Isoform-specific PKC inhibitors such as ruboxistaurin have been tested in clinical trials. Target delivery of PKC pseudosubstrate inhibitory peptides and PKC siRNA may be useful in localized vascular disease. Further studies of PKC and its role in VSM should help design isoform-specific PKC modulators that are experimentally potent and clinically safe to target PKC in vascular disease.
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Affiliation(s)
- H C Ringvold
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - R A Khalil
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
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Frohman L, Wong ABC, Matheos K, Leon-Alvarado LG, Danesh-Meyer HV. New developments in giant cell arteritis. Surv Ophthalmol 2016; 61:400-21. [PMID: 26774550 DOI: 10.1016/j.survophthal.2016.01.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 01/05/2016] [Accepted: 01/08/2016] [Indexed: 12/01/2022]
Abstract
Giant cell arteritis (GCA) is a medium-to-large vessel vasculitis with potentially sight- and life- threatening complications. Our understanding of the pathogenesis, diagnosis, and treatment of GCA has advanced rapidly in recent times. The validity of using the American College of Rheumatology guidelines for diagnosis of GCA in a clinical setting has been robustly challenged. Erythrocyte sedimentation rate, an important marker of inflammation, is lowered by the use of statins and nonsteroidal anti-inflammatory drugs. Conversely, it may be falsely elevated with a low hematocrit. Despite the emergence of new diagnostic modalities, temporal artery biopsy remains the gold standard. Evidence suggests that shorter biopsy lengths and biopsies done weeks to months after initiation of steroid therapy are still useful. New imaging techniques such as positron emission tomography have shown that vascular inflammation in GCA is more widespread than originally thought. GCA, Takayasu arteritis, and polymyalgia rheumatica are no longer thought to exist as distinct entities and are more likely parts of a spectrum of disease. A range of immunosuppressive drugs have been used in conjunction with corticosteroids to treat GCA. In particular, interleukin-6 inhibitors are showing promise as a therapy.
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Affiliation(s)
- Larry Frohman
- Department of Ophthalmology, Rutgers-New Jersey Medical School, New Jersey, USA; Department of Neurosciences, Rutgers-New Jersey Medical School, New Jersey, USA
| | - Aaron B C Wong
- Department of Ophthalmology, University of Auckland, Auckland, New Zealand
| | - Kaliopy Matheos
- Department of Ophthalmology, University of Auckland, Auckland, New Zealand
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Bushueva O, Solodilova M, Ivanov V, Polonikov A. Gender-specific protective effect of the −463G>A polymorphism of myeloperoxidase gene against the risk of essential hypertension in Russians. ACTA ACUST UNITED AC 2015; 9:902-6. [DOI: 10.1016/j.jash.2015.08.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/10/2015] [Accepted: 08/06/2015] [Indexed: 01/08/2023]
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Wang X, Dang A. Prognostic Value of Brachial-Ankle Pulse Wave Velocity in Patients With Takayasu Arteritis With Drug-Eluting Stent Implantation. Arthritis Care Res (Hoboken) 2015; 67:1150-7. [PMID: 25708244 DOI: 10.1002/acr.22563] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 01/10/2015] [Accepted: 01/27/2015] [Indexed: 11/07/2022]
Abstract
OBJECTIVE This study investigates the long-term outcomes of drug-eluting stent (DES) implantation in patients with Takayasu arteritis (TAK). METHODS Data on 48 TAK patients and 40 age-, sex-, and severity-matched patients with coronary artery disease (CAD) receiving DES implantation and hospitalized in Fuwai Hospital from February 2004 to March 2014 were assessed. The clinical features, laboratory data, coronary angiographic findings, treatment, and followup outcomes were summarized retrospectively. Major adverse cardiac events (MACE), which include all-cause death, nonfatal myocardial infarction, and nonfatal target vessel revascularization, were recorded. RESULTS TAK patients exhibited increased mean ± SD brachial-ankle pulse wave velocity (baPWV) compared with patients with CAD (17.0 ± 3.8 versus 13.8 ± 3.0 meters/second; P = 0.002). However, CAD patients had higher levels of low-density lipoprotein cholesterol (2.5 ± 1.0 versus 2.3 ± 0.8 mmoles/liter; P = 0.04). Multiple linear regression analysis revealed that baPWV was independently associated with the extent of CAD, assessed by the SYNTAX (Synergy Between Percutaneous Coronary Intervention With TAXUS and Cardiac Surgery) score (β = 0.33, P = 0.03), in TAK patients. DES implantation was deployed in 73 coronary lesions in 48 TAK patients, and restenosis occurred in 48 lesions after an average of 25.6 months (range 9.0-68.0 months) following intervention. Logistic regression analysis identified that a baPWV of 17.00 meters/second or higher (odds ratio 5.50, 95% confidence interval [95% CI] 2.1-16.6, P = 0.008) may be considered as an independent predictor of DES restenosis. Moreover, the multivariate Cox proportional hazards model demonstrated that a baPWV of 17.00 meters/second or higher (hazard ratio 3.36, 95% CI 1.51-7.52, P = 0.003) was significant and may serve as an independent predictor of MACE in TAK patients who underwent DES implantation. CONCLUSION DES in-stent restenosis remains a challenge, affecting the long-term outcomes of patients with TAK. Measuring increased arterial stiffness through baPWV, with the addition of inflammation status monitoring during followup, would be of great clinical value to identify TAK patients with DES who have a high risk for in-stent restenosis and MACE.
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Affiliation(s)
- Xu Wang
- Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Aimin Dang
- Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Chakravarti R, Gupta K, Swain M, Willard B, Scholtz J, Svensson LG, Roselli EE, Pettersson G, Johnston DR, Soltesz EG, Yamashita M, Stuehr D, Daly TM, Hoffman GS. 14-3-3 in Thoracic Aortic Aneurysms: Identification of a Novel Autoantigen in Large Vessel Vasculitis. Arthritis Rheumatol 2015; 67:1913-21. [PMID: 25917817 DOI: 10.1002/art.39130] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 03/19/2015] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Large vessel vasculitides (LVV) are a group of autoimmune diseases characterized by injury to and anatomic modifications of large vessels, including the aorta and its branch vessels. Disease etiology is unknown. This study was undertaken to identify antigen targets within affected vessel walls in aortic root, ascending aorta, and aortic arch surgical specimens from patients with LVV, including giant cell arteritis, Takayasu arteritis, and isolated focal aortitis. METHODS Thoracic aortic aneurysm specimens and autologous blood were acquired from consenting patients who underwent aorta reconstruction procedures. Aorta proteins were extracted from both patients with LVV and age-, race-, and sex-matched disease controls with noninflammatory aneurysms. A total of 108 serum samples from patients with LVV, matched controls, and controls with antinuclear antibodies, different forms of vasculitis, or sepsis were tested. RESULTS Evaluation of 108 serum samples and 22 aortic tissue specimens showed that 78% of patients with LVV produced antibodies to 14-3-3 proteins in the aortic wall (93.7% specificity), whereas controls were less likely to do so (6.7% produced antibodies). LVV patient sera contained autoantibody sufficient to immunoprecipitate 14-3-3 protein(s) from aortic lysates. Three of 7 isoforms of 14-3-3 were found to be up-regulated in aorta specimens from patients with LVV, and 2 isoforms (ε and ζ) were found to be antigenic in LVV. CONCLUSION This is the first study to use sterile, snap-frozen thoracic aorta biopsy specimens to identify autoantigens in LVV. Our findings indicate that 78% of patients with LVV have antibody reactivity to 14-3-3 protein(s). The precise role of these antibodies and 14-3-3 proteins in LVV pathogenesis deserves further study.
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Differential regulation of matrix metalloproteinases in varicella zoster virus-infected human brain vascular adventitial fibroblasts. J Neurol Sci 2015; 358:444-6. [PMID: 26443282 DOI: 10.1016/j.jns.2015.09.349] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 08/18/2015] [Accepted: 09/13/2015] [Indexed: 11/22/2022]
Abstract
Upon reactivation, varicella zoster virus (VZV) spreads transaxonally, infects cerebral arteries and causes ischemic or hemorrhagic stroke, as well as aneurysms. The mechanism(s) of VZV-induced aneurysm formation is unknown. However, matrix metalloproteinases (MMPs), which digest extracellular structural proteins in the artery wall, play a role in cerebral and aortic artery aneurysm formation and rupture. Here, we examined the effect of VZV infection on expression of MMP-1, -2, -3, and -9 in primary human brain vascular adventitial fibroblasts (BRAFS). At 6 days post-infection, VZV- and mock-infected BRAFs were analyzed for mRNA levels of MMP-1, -2, -3 and -9 by RT-PCR and for corresponding total intra- and extracellular protein levels by multiplex ELISA. The activity of MMP-1 was also measured in a substrate cleavage assay. Compared to mock-infected BRAFs, MMP-1, MMP-3 and MMP-9 transcripts, cell lysate protein and conditioned supernatant protein were all increased in VZV-infected BRAFs, whereas MMP-2 transcripts, cell lysate protein and conditioned supernatant protein were decreased. MMP-1 from the conditioned supernatant of VZV-infected BRAFs showed increased cleavage activity on an MMP-1-specific substrate compared to mock-infected BRAFs. Differential regulation of MMPs in VZV-infected BRAFs may contribute to aneurysm formation in VZV vasculopathy.
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Zhang L, Li Y, Liu Y, Wang X, Chen M, Xing Y, Zhu D. STAT3-mediated MMP-2 expression is required for 15-HETE-induced vascular adventitial fibroblast migration. J Steroid Biochem Mol Biol 2015; 149:106-17. [PMID: 25623089 DOI: 10.1016/j.jsbmb.2015.01.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 01/19/2015] [Accepted: 01/21/2015] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Vascular adventitial fibroblasts (VAFs) migration was involved in neointima formation, and increased 15-HETE levels contributed to vascular remodeling. However, how 15-HETE-induced VAF migration was not clear. METHODS AND RESULTS 15-HETE-stimulated VAF phenotypic changes and migration as measured by the wound healing assay required STAT3 phosphorylation. JNK1 and CREB inhibition blocked 15-HETE-induced STAT3 activation and VAF changes. 15-HETE-induced MMP-2 expression and secretion were analyzed by Western blot and ELISA, respectively. MMP-2 knockdown blocked VAF migration and phenotypic alterations. JNK1, STAT3 and CREB blockade suppressed 15-HETE-induced MMP-2 expression in VAFs. MMP-2 promoter activity was assessed by chromatin immunoprecipitation using anti-STAT3 antibodies, which demonstrated that STAT3 was essential for 15-HETE-induced MMP-2 expression. Rats that suffered from hypoxia injury with or without treatment were examined. Pulmonary artery remodeling was obviously observed, and even the media was broken. MMP-2-positive staining was observed in the adventitia and intima. MMP-2 Serum secretion was enhanced as detected by ELISA, and MMP-2 and α-SMA protein expressions were increased after inducing hypoxia in the rats, which was restored in rats that had been administrated with NDGA. CONCLUSION These results reveal that STAT3-mediated MMP-2 expression is required for 15-HETE induced-VAF migration.
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Affiliation(s)
- Li Zhang
- Department of Pharmacology, Harbin Medical University - Daqing, Daqing, Heilongjiang Province 163319, China
| | - Yumei Li
- Department of Pharmacology, Harbin Medical University - Daqing, Daqing, Heilongjiang Province 163319, China; Biopharmaceutical Institute of the Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang Province 150081, China
| | - Yumei Liu
- Department of Pharmacology, Harbin Medical University - Daqing, Daqing, Heilongjiang Province 163319, China
| | - Xiaoyan Wang
- Department of Pharmacology, Harbin Medical University - Daqing, Daqing, Heilongjiang Province 163319, China
| | - Minggang Chen
- Department of Pharmacology, Harbin Medical University - Daqing, Daqing, Heilongjiang Province 163319, China
| | - Yan Xing
- Department of Pharmacology, Harbin Medical University - Daqing, Daqing, Heilongjiang Province 163319, China
| | - Daling Zhu
- Department of Pharmacology, Harbin Medical University - Daqing, Daqing, Heilongjiang Province 163319, China; Biopharmaceutical Institute of the Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang Province 150081, China.
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Quantification of aortic and cutaneous elastin and collagen morphology in Marfan syndrome by multiphoton microscopy. J Struct Biol 2014; 187:242-253. [PMID: 25086405 DOI: 10.1016/j.jsb.2014.07.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 07/22/2014] [Accepted: 07/23/2014] [Indexed: 01/19/2023]
Abstract
In a mouse model of Marfan syndrome, conventional Verhoeff-Van Gieson staining displays severe fragmentation, disorganization and loss of the aortic elastic fiber integrity. However, this method involves chemical fixatives and staining, which may alter the native morphology of elastin and collagen. Thus far, quantitative analysis of fiber damage in aorta and skin in Marfan syndrome has not yet been explored. In this study, we have used an advanced noninvasive and label-free imaging technique, multiphoton microscopy to quantify fiber fragmentation, disorganization, and total volumetric density of aortic and cutaneous elastin and collagen in a mouse model of Marfan syndrome. Aorta and skin samples were harvested from Marfan and control mice aged 3-, 6- and 9-month. Elastin and collagen were identified based on two-photon excitation fluorescence and second-harmonic-generation signals, respectively, without exogenous label. Measurement of fiber length indicated significant fragmentation in Marfan vs. control. Fast Fourier transform algorithm analysis demonstrated markedly lower fiber organization in Marfan mice. Significantly reduced volumetric density of elastin and collagen and thinner skin dermis were observed in Marfan mice. Cutaneous content of elastic fibers and thickness of dermis in 3-month Marfan resembled those in the oldest control mice. Our findings of early signs of fiber degradation and thinning of skin dermis support the potential development of a novel non-invasive approach for early diagnosis of Marfan syndrome.
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Carmona FD, Gonzalez-Gay MA, Martin J. Genetic component of giant cell arteritis. Rheumatology (Oxford) 2013; 53:6-18. [DOI: 10.1093/rheumatology/ket231] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Ly KH, Liozon E, Fauchais AL, Vidal E. Physiopathologie de l’artérite à cellules géantes. Rev Med Interne 2013; 34:392-402. [DOI: 10.1016/j.revmed.2013.02.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 02/18/2013] [Indexed: 10/27/2022]
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Aortite et complications aortiques de l’artérite à cellules géantes (maladie de Horton). Rev Med Interne 2013; 34:412-20. [DOI: 10.1016/j.revmed.2013.02.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 02/13/2013] [Indexed: 11/21/2022]
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Lei Y, Zheng Z, Wang Y, Liu Y, Liu R, Xu Q, Yu X. Sulodexide may alleviate neointimal hyperplasia by inhibiting angiopoietin‑2 in an arteriovenous fistula model. Mol Med Rep 2013; 7:831-5. [PMID: 23358592 DOI: 10.3892/mmr.2013.1293] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Accepted: 12/05/2012] [Indexed: 11/06/2022] Open
Abstract
The present study was undertaken to confirm whether sulodexide aleviates neointimal hyperplasia by regulating angiopoietin/Tie in a rat femoral arteriovenous fistula (AVF) model. Sprague Dawley rats were divided into four groups: sham, model, treatment and treatment control. An arteriovenous shunt model was created in the model and treatment groups. Sulodexide was subcutaneously administered (10 mg/kg/day) 6 times per week for 8 weeks in the treatment and treatment control groups. Histology and immunofluorescence were analyzed and the protein expression of angiopoietin‑1, angiopoietin‑2, Tie‑2, p‑ERK and total‑ERK were tested by ELISA and/or western blotting after 8 weeks. HE staining revealed that sulodexide was able to partially alleviate intimal hyperplasia of remodeled veins in the AVF model. Additionally, sulodexide was able to decrease angiopoietin‑2 and Tie‑2 expression while increasing angiopoietin‑1 expression in AVF tissue. Sulodexide was also able to decrease ERK phosphorylation which was increased in the model. Serum levels of soluble Tie-2 (sTie‑2) were also significantly decreased by sulodexide compared with the model. Immunofluorescent analysis also confirmed that sulodexide was able to decrease angiopoietin‑2 expression, possibly partially by inhibiting endothelial cell proliferation. Sulodexide may alleviate venous intimal hyperplasia by regulating the angiopoietin/Tie system, which may play a significant role in assisting remodeled veins to cope with their new biomechanical environment, but whether the angiopoietin/Tie system is beneficial or not requires further study.
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Affiliation(s)
- Yan Lei
- Department of Nephrology, The First Affiliated Hospital, Sun Yat‑Sen University and Key Laboratory of Nephrology, Ministry of Health, Guangzhou 510080, PR China
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Pathogénie de l’artérite à cellules géantes. Presse Med 2012; 41:937-47. [DOI: 10.1016/j.lpm.2012.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 07/07/2012] [Accepted: 07/09/2012] [Indexed: 12/12/2022] Open
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Weyand CM, Liao YJ, Goronzy JJ. The immunopathology of giant cell arteritis: diagnostic and therapeutic implications. J Neuroophthalmol 2012; 32:259-65. [PMID: 22914691 PMCID: PMC4278656 DOI: 10.1097/wno.0b013e318268aa9b] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Giant cell arteritis (GCA) is an important cause of preventable blindness, most commonly due to anterior ischemic optic neuropathy. Ischemic tissue injury is the end result of a process that begins within the walls of susceptible arteries in which local dendritic cells (DCs) recruit and activate CD4 T cells that, in turn, direct the activity of effector macrophages. In response to the immune attack, the blood vessel forms lumen-stenosing intima. Multiple cascades of excessive T-cell reactivity contribute to the autoimmune features of giant cell arteritis with TH1 and TH17 immunity responsible for the early phase and TH1 immunity promoting chronic-smoldering inflammation. These cascades are only partially overlapping, supporting the concept that a multitude of instigators induce and sustain vascular inflammation. The artery actively participates in the abnormal immune response through endogenous immune sentinels, so-called vascular DCs embedded in the adventitia. Advancing age, the strongest of all risk factors for GCA, contributes to both, the dysfunction of the immune system and the vascular system. Expansion of the therapeutic armamentarium for GCA needs to focus on approaches that mitigate the impact of the aging artery and adapt to the needs of the immunosenescent host.
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Affiliation(s)
- Cornelia M Weyand
- Department of Medicine, and the Byers Eye Institute at Stanford, Stanford University, Stanford, CA, USA.
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Abstract
Polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) are inflammatory diseases that typically affect white individuals >50 years. Women are affected ∼2-3 times more often than men. PMR and GCA occur together more frequently than expected by chance. The main symptoms of PMR are pain and stiffness in the shoulders, and often in the neck and pelvic girdle. Imaging studies reveal inflammation of joints and bursae of the affected areas. GCA is a large-vessel and medium-vessel arteritis predominantly involving the branches of the aortic arch. The typical clinical manifestations of GCA are new headache, jaw claudication and visual loss. PMR and GCA usually remit within 6 months to 2 years from disease onset. Some patients, however, have a relapsing course and might require long-standing treatment. Diagnosis of PMR and GCA is based on clinical features and elevated levels of inflammatory markers. Temporal artery biopsy remains the gold standard to support the diagnosis of GCA; imaging studies are useful to delineate large-vessel involvement in GCA. Glucocorticoids remain the cornerstone of treatment of both PMR and GCA, but patients with GCA require higher doses. Synthetic immunosuppressive drugs also have a role in disease management, whereas the role of biologic agents is currently unclear.
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Schaefer SC, Lehr HA. [Giant cell arteritis: etiological knowledge and diagnostic challenge for pathologists]. DER PATHOLOGE 2012; 33:228-35. [PMID: 22576597 DOI: 10.1007/s00292-011-1555-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Giant cell arteritis is a potentially systemic disease of medium-sized and large caliber arteries, showing a preferential manifestation in the extracranial branches of the carotid artery. The diagnosis is oriented to clinical and histomorphological criteria which will be critically reviewed. Particular emphasis is placed on the differentiation from normal aging processes and from healing stages under steroid therapy. In addition, the advances in our understanding of the disease pathomechanism during the last 10 years will be briefly presented as the basis for the hitherto empiric steroid treatment.
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Affiliation(s)
- S C Schaefer
- Institut für Pathologie, Inselspital Bern, Bern, Schweiz
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