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Kawaguchi Y, Kuwana M. Pathogenesis of vasculopathy in systemic sclerosis and its contribution to fibrosis. Curr Opin Rheumatol 2023; 35:309-316. [PMID: 37490353 DOI: 10.1097/bor.0000000000000959] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
PURPOSE OF REVIEW In patients with systemic sclerosis (SSc), vascular manifestations precede skin and organ fibrosis. There is increasing evidence demonstrating a pathogenic link between early vascular injury and subsequent development of tissue fibrosis. RECENT FINDINGS Our knowledge of cellular and molecular mechanisms underlying a unique relationship between SSc-related vasculopathy and fibrosis has changed over the last few years. There is increasing evidence showing viral infection as a potential trigger elucidating vascular injury. Due to defective vascular repair machinery, this initial event results in endothelial cell activation and apoptosis as well as the recruitment of inflammatory/immune cells, leading to endothelial-to-mesenchymal transition. This sequential process induces destructive vasculopathy in capillaries, fibroproliferative vascular lesions in arteries, and excessive fibrosis in the surrounding tissue. A variety of molecular mechanisms and pathways involved in vascular remodeling linked to subsequent excessive fibrosis have been identified and serve as attractive therapeutic targets for SSc. SUMMARY Endothelial injury may play a central role in connecting three features that characterize SSc pathogenesis: vasculopathy, chronic inflammation, and fibrosis. Our understanding of the processes responsible for myofibroblast differentiation triggered by vascular injury will provide the rationale for novel targeted therapies for SSc.
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Affiliation(s)
- Yasushi Kawaguchi
- Division of Rheumatology, Department of Internal Medicine, Tokyo Women's Medical University School of Medicine
| | - Masataka Kuwana
- Department of Allergy and Rheumatology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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2
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Chen DY, Tzang CC, Liu CM, Chiu TM, Lin JW, Chuang PH, Kuo CW, Tzang BS, Hsu TC. Effect of the Functional VP1 Unique Region of Human Parvovirus B19 in Causing Skin Fibrosis of Systemic Sclerosis. Int J Mol Sci 2023; 24:15294. [PMID: 37894973 PMCID: PMC10607574 DOI: 10.3390/ijms242015294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Human parvovirus B19 (B19V) is a single-stranded non-enveloped DNA virus of the family Parvoviridae that has been associated with various autoimmune disorders. Systemic sclerosis (SSc) is an autoimmune connective tissue disorder with high mortality and has been linked to B19V infection. However, the precise mechanism underlying the B19V contribution to the development of SSc remains uncertain. This study investigated the impacts of the functional B19V-VP1 unique region (VP1u) in macrophages and bleomycin (BLE)-induced SSc mice. Cell experimental data showed that significantly decreased viability and migration of both B19V-VP1u-treated U937 and THP-1 macrophages are detected in the presence of celastrol. Significantly increased MMP9 activity and elevated NF-kB, MMP9, IL-6, TNF-α, and IL-1β expressions were detected in both B19V-VP1u-treated U937 and THP-1 macrophages. Conversely, celastrol revealed an inhibitory effect on these molecules. Notably, celastrol intervened in this pathogenic process by suppressing the sPLA2 activity of B19V-VP1u and subsequently reducing the inflammatory response. Notably, the administration of B19V-VP1u exacerbated BLE-induced skin fibrosis in mice, with augmented expressions of TGF-β, IL-6, IL-17A, IL-18, and TNF-α, ultimately leading to α-SMA and collagen I deposits in the dermal regions of BLE-induced SSc mice. Altogether, this study sheds light on parvovirus B19 VP1u linked to scleroderma and aggravated dermal fibrosis.
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Affiliation(s)
- Der-Yuan Chen
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
- College of Medicine, China Medical University, Taichung 404, Taiwan
- Translational Medicine Laboratory, Rheumatology and Immunology Center, China Medical University Hospital, Taichung 404, Taiwan
| | - Chih-Chen Tzang
- School of Medicine, College of Medicine, National Taiwan University, Taipei City 100, Taiwan;
| | - Chuan-Ming Liu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
| | - Tsu-Man Chiu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
- Department of Dermatology, Chung Shan Medical University Hospital, Taichung 402, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
| | - Jhen-Wei Lin
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
| | - Pei-Hua Chuang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
| | - Chia-Wei Kuo
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
| | - Bor-Show Tzang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
- Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
- Department of Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan
- Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan
| | - Tsai-Ching Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (D.-Y.C.); (C.-M.L.); (T.-M.C.); (J.-W.L.); (P.-H.C.); (C.-W.K.)
- Department of Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan
- Immunology Research Center, Chung Shan Medical University, Taichung 402, Taiwan
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3
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Patnaik E, Lyons M, Tran K, Pattanaik D. Endothelial Dysfunction in Systemic Sclerosis. Int J Mol Sci 2023; 24:14385. [PMID: 37762689 PMCID: PMC10531630 DOI: 10.3390/ijms241814385] [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: 08/28/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Systemic sclerosis, commonly known as scleroderma, is an autoimmune disorder characterized by vascular abnormalities, autoimmunity, and multiorgan fibrosis. The exact etiology is not known but believed to be triggered by environmental agents in a genetically susceptible host. Vascular symptoms such as the Raynaud phenomenon often precede other fibrotic manifestations such as skin thickening indicating that vascular dysfunction is the primary event. Endothelial damage and activation occur early, possibly triggered by various infectious agents and autoantibodies. Endothelial dysfunction, along with defects in endothelial progenitor cells, leads to defective angiogenesis and vasculogenesis. Endothelial to mesenchymal cell transformation is another seminal event during pathogenesis that progresses to tissue fibrosis. The goal of the review is to discuss the molecular aspect of the endothelial dysfunction that leads to the development of systemic sclerosis.
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Affiliation(s)
- Eshaan Patnaik
- Department of Biology, Memphis University School, Memphis, TN 38119, USA;
| | - Matthew Lyons
- Division of Rheumatology, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA; (M.L.); (K.T.)
| | - Kimberly Tran
- Division of Rheumatology, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA; (M.L.); (K.T.)
| | - Debendra Pattanaik
- Division of Rheumatology, University of Tennessee Health Sciences Center, Memphis, TN 38163, USA; (M.L.); (K.T.)
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4
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Cornet MC, Grose C, Vexler Z, Wu YW, Fullerton HJ. The Role of Infection and Inflammation in the Pathogenesis of Pediatric Arterial Ischemic Stroke. Semin Pediatr Neurol 2022; 44:100995. [PMID: 36456035 DOI: 10.1016/j.spen.2022.100995] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 11/15/2022]
Abstract
Infections play an important role in the pathogenesis of acute ischemic stroke (AIS) in neonates and children. In neonates, chorioamnionitis or intrauterine inflammation has been implicated as a common risk factor for AIS. In infants and children, recent investigations demonstrated that even minor childhood infections are associated with subsequent increased risk for AIS. Post-infectious inflammatory mechanisms following infections with herpesviruses may lead to focal cerebral arteriopathy (FCA), one of the most common causes of AIS in a previously healthy child. Other agents such as parvovirus B19, dengue virus, and SARS-CoV-2 have recently been implicated as other potential triggers. Infections are compelling treatable stroke risk factors, with available therapies for both pathogens and downstream inflammatory effects. However, infections are common in childhood, while stroke is uncommon. The ongoing VIPS II (Vascular effects of Infection in Pediatric Stroke) study aims to identify the array of pathogens that may lead to childhood AIS and whether either unusual strains or unusual combinations of pathogens explain this paradox. Immune modulation with corticosteroids for FCA is another active area of research, with European and U.S. trials launching soon. The results of these new pediatric stroke studies combined with findings emerging from the larger field of immune-mediated post-infectious diseases will likely lead to new approaches to the prevention and treatment of pediatric stroke. This review highlights recent developments from both clinical and animal model research enhancing our understanding of this relationship between infection, inflammation, and stroke in neonates and children.
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Affiliation(s)
- Marie-Coralie Cornet
- Department of Pediatrics, University of California San Francisco, San Francisco, California, USA.
| | - Charles Grose
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Zinaida Vexler
- Department of Neurology, University of California San Francisco, San Francisco, California, USA
| | - Yvonne W Wu
- Department of Pediatrics, University of California San Francisco, San Francisco, California, USA; Department of Neurology, University of California San Francisco, San Francisco, California, USA
| | - Heather J Fullerton
- Department of Pediatrics, University of California San Francisco, San Francisco, California, USA; Department of Neurology, University of California San Francisco, San Francisco, California, USA
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5
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Jacquot R, Gerfaud-Valentin M, Mekki Y, Billaud G, Jamilloux Y, Sève P. [Parvovirus B19 infections in adults]. Rev Med Interne 2022; 43:713-726. [PMID: 36088203 DOI: 10.1016/j.revmed.2022.08.005] [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: 06/30/2022] [Revised: 07/29/2022] [Accepted: 08/21/2022] [Indexed: 12/11/2022]
Abstract
Acute Parvovirus B19 (PVB19) infection is responsible for erythema infectiosum in children and non-specific polyarthralgias in immunocompetent adults associated with skin lesions and rarer manifestations (hepatic, neurological, cardiac or nephrological). In immunocompromised patients, cytopenias are more frequent and in some cases, viremia persists and is responsible for PVB19 chronic infection. PVB19 is responsible for pure red cell aplasia during chronic hemolytic diseases. Acute PVB19 infection is a differential diagnosis of some autoimmune diseases and has been suspected to be a trigger for some autoimmune diseases because of its ability to promote the emergence of autoimmune markers. Mechanisms of molecular mimicry, induction of apoptosis and activation of enzymes have been demonstrated, explaining in part the production of autoantibodies during infection. However, the demonstration of a causal relationship in the triggering of autoimmune disease remains to be done. This review provides a synthesis of the PVB19 infection clinical data in adults with a particular focus on these links with autoimmunity.
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Affiliation(s)
- R Jacquot
- Service de médecine interne, hospices civils de Lyon, hôpital de la Croix-Rousse, 103, Grande-Rue de la Croix-Rousse, 69317 Lyon cedex 04, France; Université de Lyon, Lyon, France.
| | - M Gerfaud-Valentin
- Service de médecine interne, hospices civils de Lyon, hôpital de la Croix-Rousse, 103, Grande-Rue de la Croix-Rousse, 69317 Lyon cedex 04, France; Université de Lyon, Lyon, France
| | - Y Mekki
- Université de Lyon, Lyon, France
| | | | - Y Jamilloux
- Service de médecine interne, hospices civils de Lyon, hôpital de la Croix-Rousse, 103, Grande-Rue de la Croix-Rousse, 69317 Lyon cedex 04, France; Université de Lyon, Lyon, France
| | - P Sève
- Service de médecine interne, hospices civils de Lyon, hôpital de la Croix-Rousse, 103, Grande-Rue de la Croix-Rousse, 69317 Lyon cedex 04, France; Université de Lyon, Lyon, France; Université Claude-Bernard Lyon 1, Research on Healthcare Performance (RESHAPE), Inserm U1290, Lyon, France; Laboratoire de virologie, hospices civils de Lyon, centre de biologie et de pathologie, hôpital de la Croix-Rousse, 103, Grande-Rue de la Croix-Rousse, 69317 Lyon cedex 04, France
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6
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Moschetti L, Piantoni S, Vizzardi E, Sciatti E, Riccardi M, Franceschini F, Cavazzana I. Endothelial Dysfunction in Systemic Lupus Erythematosus and Systemic Sclerosis: A Common Trigger for Different Microvascular Diseases. Front Med (Lausanne) 2022; 9:849086. [PMID: 35462989 PMCID: PMC9023861 DOI: 10.3389/fmed.2022.849086] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/04/2022] [Indexed: 11/13/2022] Open
Abstract
This review describes the complex interplay between inflammation, vasculopathy and fibrosis that involve the heart and peripheral small vessels, leading to endothelial stiffness, vascular damage, and early aging in patients with systemic lupus erythematosus and systemic sclerosis, which represents two different models of vascular dysfunction among systemic autoimmune diseases. In fact, despite the fact that diagnostic methods and therapies have been significantly improved in the last years, affected patients show an excess of cardiovascular mortality if compared with the general population. In addition, we provide a complete overview on the new techniques which are used for the evaluation of endothelial dysfunction in a preclinical phase, which could represent a new approach in the assessment of cardiovascular risk in these patients.
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Affiliation(s)
- Liala Moschetti
- Rheumatology and Clinical immunology Unit, ASST Spedali Civili of Brescia, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Silvia Piantoni
- Rheumatology and Clinical immunology Unit, ASST Spedali Civili of Brescia, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
- *Correspondence: Silvia Piantoni,
| | - Enrico Vizzardi
- Cardiology Unit, ASST Spedali Civili of Brescia, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | | | - Mauro Riccardi
- Cardiology Unit, ASST Spedali Civili of Brescia, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Franco Franceschini
- Rheumatology and Clinical immunology Unit, ASST Spedali Civili of Brescia, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Ilaria Cavazzana
- Rheumatology and Clinical immunology Unit, ASST Spedali Civili of Brescia, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
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7
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Arvia R, Zakrzewska K, Giovannelli L, Ristori S, Frediani E, Del Rosso M, Mocali A, Stincarelli MA, Laurenzana A, Fibbi G, Margheri F. Parvovirus B19 (B19V) induces cellular senescence in human dermal fibroblasts: putative role in SSc-associated fibrosis. Rheumatology (Oxford) 2021; 61:3864-3874. [PMID: 34888638 PMCID: PMC9434300 DOI: 10.1093/rheumatology/keab904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/29/2021] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE Emerging evidence demonstrates that excessive accumulation of senescent cells is associated with some chronic diseases and suggests a pathogenic role of cellular senescence in fibrotic processes, such as that occurring in aging or in systemic sclerosis (SSc). Recently, we demonstrated that parvovirus B19 (B19V) activates normal human dermal fibroblasts and induces expression of different profibrotic/proinflammatory genes. This observation prompted us to investigate whether it is also able to induce fibroblast senescence as a potential pathogenetic mechanism in B19V-induced fibrosis. METHODS Primary cultures of fibroblasts were infected with B19V and analyzed for the acquisition of senescence markers, such as morphological modifications, senescence-associated beta-galactosidase (SA-β-gal) activity, DNA damage response (DDR) and expression of senescence-associated secretory phenotype (SASP)-related factors. RESULTS We demonstrated that B19V-infected fibroblasts develop typical senescence features such as enlarged and flat-shaped morphology and SA-β-gal activity similar to that observed in SSc skin fibroblasts. They also developed a SASP-like phenotype characterized by mRNA expression and release of some proinflammatory cytokines, along with activation of transcription factor NFkB. Moreover, we observed B19V-induced DNA damage with the comet assay: a subpopulation of fibroblasts from B19V-infected cultures showed a significant higher level of DNA strand breaks and oxidative damage compared with mock-infected cells. Increased level and nuclear localization of ɣH2AX, a hallmark of DNA damage response, were also found. CONCLUSIONS B19V-induced senescence and production of SASP-like factors in normal dermal fibroblasts could represent a new pathogenic mechanism of non-productive B19V infection, which may have a role in the fibrotic process.
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Affiliation(s)
- Rosaria Arvia
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Krystyna Zakrzewska
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Lisa Giovannelli
- Department NEUROFARBA-Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Sara Ristori
- Department NEUROFARBA-Section of Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Elena Frediani
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
| | - Mario Del Rosso
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
| | - Alessandra Mocali
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
| | - Maria A Stincarelli
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Anna Laurenzana
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
| | - Gabriella Fibbi
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
| | - Francesca Margheri
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
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8
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Starnoni M, Pappalardo M, Spinella A, Testoni S, Lattanzi M, Feminò R, De Santis G, Salvarani C, Giuggioli D. Systemic sclerosis cutaneous expression: Management of skin fibrosis and digital ulcers. Ann Med Surg (Lond) 2021; 71:102984. [PMID: 34840747 PMCID: PMC8606707 DOI: 10.1016/j.amsu.2021.102984] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 11/30/2022] Open
Abstract
Systemic sclerosis is a connective tissue disease with cutaneous involvement. Clinical manifestations result from the balance of inflammations/autoimmunity process and fibrogenesis. Patients suffer from skin ulcers, non-ulcerative lesions including digital pitting scars, telangiectasias, subungual hyperkeratosis, abrasions, fissures, and subcutaneous calcinosis. A review about the pathophysiology of the disease, the physical examination of the patients, the instrumental assessment, and possible treatments is performed.
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Affiliation(s)
- Marta Starnoni
- Department of Medical and Surgical Sciences, Division of Plastic Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Marco Pappalardo
- Department of Medical and Surgical Sciences, Division of Plastic Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
| | - Amelia Spinella
- Department of Rheumatology, Division of Rheumatology, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
| | - Sofia Testoni
- Department of Rheumatology, Division of Rheumatology, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
| | - Melba Lattanzi
- Department of Medical and Surgical Sciences, Division of Plastic Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
| | - Raimondo Feminò
- Department of Anesthesiology, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
| | - Giorgio De Santis
- Department of Medical and Surgical Sciences, Division of Plastic Surgery, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
| | - Carlo Salvarani
- Department of Rheumatology, Division of Rheumatology, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
| | - Dilia Giuggioli
- Department of Rheumatology, Division of Rheumatology, University of Modena and Reggio Emilia, Policlinico of Modena, Largo Pozzo 71, 41124, Modena, Italy
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9
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Ferri C, Arcangeletti MC, Caselli E, Zakrzewska K, Maccari C, Calderaro A, D'Accolti M, Soffritti I, Arvia R, Sighinolfi G, Artoni E, Giuggioli D. Insights into the knowledge of complex diseases: Environmental infectious/toxic agents as potential etiopathogenetic factors of systemic sclerosis. J Autoimmun 2021; 124:102727. [PMID: 34601207 DOI: 10.1016/j.jaut.2021.102727] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 12/14/2022]
Abstract
Systemic sclerosis (SSc) is a connective tissue disease secondary to three cardinal pathological features: immune-system alterations, diffuse microangiopathy, and fibrosis involving the skin and internal organs. The etiology of SSc remains quite obscure; it may encompass multiple host genetic and environmental -infectious/chemical-factors. The present review focused on the potential role of environmental agents in the etiopathogenesis of SSc based on epidemiological, clinical, and laboratory investigations previously published in the world literature. Among infectious agents, some viruses that may persist and reactivate in infected individuals, namely human cytomegalovirus (HCMV), human herpesvirus-6 (HHV-6), and parvovirus B19 (B19V), and retroviruses have been proposed as potential causative agents of SSc. These viruses share a number of biological activities and consequent pathological alterations, such as endothelial dysfunction and/or fibroblast activation. Moreover, the acute worsening of pre-existing interstitial lung involvement observed in SSc patients with symptomatic SARS-CoV-2 infection might suggest a potential role of this virus in the overall disease outcome. A variety of chemical/occupational agents might be regarded as putative etiological factors of SSc. In this setting, the SSc complicating silica dust exposure represents one of the most promising models of study. Considering the complexity of SSc pathogenesis, none of suggested causative factors may explain the appearance of the whole SSc; it is likely that the disease is the result of a multifactorial and multistep pathogenetic process. A variable combination of potential etiological factors may modulate the appearance of different clinical phenotypes detectable in individual scleroderma patients. The in-deep investigations on the SSc etiopathogenesis may provide useful insights in the broad field of human diseases characterized by diffuse microangiopathy or altered fibrogenesis.
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Affiliation(s)
- Clodoveo Ferri
- Rheumatology Unit, Medical School, University of Modena and Reggio E, University-Hospital Policlinico of Modena, Modena, Italy; Rheumatology Unit, Casa di Cura Madonna dello Scoglio, Cotronei (KR), Italy.
| | | | - Elisabetta Caselli
- Section of Microbiology, Department of Chemical, Pharmaceutical and Agricultural Sciences and LTTA, University of Ferrara, Ferrara, Italy
| | - Krystyna Zakrzewska
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Clara Maccari
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Adriana Calderaro
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Maria D'Accolti
- Section of Microbiology, Department of Chemical, Pharmaceutical and Agricultural Sciences and LTTA, University of Ferrara, Ferrara, Italy
| | - Irene Soffritti
- Section of Microbiology, Department of Chemical, Pharmaceutical and Agricultural Sciences and LTTA, University of Ferrara, Ferrara, Italy
| | - Rosaria Arvia
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Gianluca Sighinolfi
- Rheumatology Unit, Medical School, University of Modena and Reggio E, University-Hospital Policlinico of Modena, Modena, Italy.
| | - Erica Artoni
- Rheumatology Unit, Medical School, University of Modena and Reggio E, University-Hospital Policlinico of Modena, Modena, Italy
| | - Dilia Giuggioli
- Rheumatology Unit, Medical School, University of Modena and Reggio E, University-Hospital Policlinico of Modena, Modena, Italy
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10
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Matucci-Cerinic M, Hughes M, Taliani G, Kahaleh B. Similarities between COVID-19 and systemic sclerosis early vasculopathy: A "viral" challenge for future research in scleroderma. Autoimmun Rev 2021; 20:102899. [PMID: 34274540 PMCID: PMC8280663 DOI: 10.1016/j.autrev.2021.102899] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 05/26/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To review similarities between COVID-19 and systemic sclerosis (SSc) early vasculopathy to provide novel insights into both diseases. METHODS A narrative review of the literature supplemented with expert opinion. RESULTS There is clear evidence that the endothelium is at the centre stage in SSc and COVID-19, with endothelial cell activation/injury and dysfunction creating the crucial evolving step in the pathogenesis of both diseases. The angiotensin system has also been implicated in the early stages of both COVID-19 and SSc. Autoptic studies provide novel insights into the effects of SARS-CoV-2 on the endothelium. Normal endothelium and endothelial dysfunction in COVID-19 and SSc are discussed. It is debated whether SARS-CoV-2 infection triggers autoimmunity with production of autoantibodies which is of mechanistic interest because other viral illnesses are potentially involved in endothelial dysfunction and in SSc pathogenesis. CONCLUSION COVID-19 is due to a direct assault of SARS-CoV-2 on the vascular system as an acute infection, whereas SSc remains a chronic/sub-acute autoimmune disease of largely unknown etiology Further study and exploration of the SARS-CoV-2 pathogenic mechanisms might provide further useful milestones in the understanding of the early SSc pathogenesis.
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Affiliation(s)
- Marco Matucci-Cerinic
- Department of Experimental and Clinical Medicine, University of Florence & Division of Rheumatology AOUC, Florence, Italy; Unit of Immunology, Rheumatology, Allergy and Rare Diseases (UnIRAR), IRCCS San Raffaele Hospital, Milan, Italy.
| | - Michael Hughes
- Department of Rheumatology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Gloria Taliani
- Infectious Diseases Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Bashar Kahaleh
- Division of Rheumatology, Allergy and Immunology, University of Toledo Medical Center, Toledo, OH, USA
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Zamanian RT, Badesch D, Chung L, Domsic RT, Medsger T, Pinckney A, Keyes-Elstein L, D'Aveta C, Spychala M, White RJ, Hassoun PM, Torres F, Sweatt AJ, Molitor JA, Khanna D, Maecker H, Welch B, Goldmuntz E, Nicolls MR. Safety and Efficacy of B-Cell Depletion with Rituximab for the Treatment of Systemic Sclerosis-associated Pulmonary Arterial Hypertension: A Multicenter, Double-Blind, Randomized, Placebo-controlled Trial. Am J Respir Crit Care Med 2021; 204:209-221. [PMID: 33651671 PMCID: PMC8650794 DOI: 10.1164/rccm.202009-3481oc] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Rationale: Systemic sclerosis (SSc)-pulmonary arterial hypertension (PAH) is one of the most prevalent and deadly forms of PAH. B cells may contribute to SSc pathogenesis. Objectives: We investigated the safety and efficacy of B-cell depletion for SSc-PAH. Methods: In an NIH-sponsored, multicenter, double-blinded, randomized, placebo-controlled, proof-of-concept trial, 57 patients with SSc-PAH on stable-dose standard medical therapy received two infusions of 1,000 mg rituximab or placebo administered 2 weeks apart. The primary outcome measure was the change in 6-minute-walk distance (6MWD) at 24 weeks. Secondary endpoints included safety and invasive hemodynamics. We applied a machine learning approach to predict drug responsiveness. Measurements and Main Results: We randomized 57 subjects from 2010 to 2018. In the primary analysis, using data through Week 24, the adjusted mean change in 6MWD at 24 weeks favored the treatment arm but did not reach statistical significance (23.6 ± 11.1 m vs. 0.5 ± 9.7 m; P = 0.12). Although a negative study, when data through Week 48 were also considered, the estimated change in 6MWD at Week 24 was 25.5 ± 8.8 m for rituximab and 0.4 ± 7.4 m for placebo (P = 0.03). Rituximab treatment appeared to be safe and well tolerated. Low levels of RF (rheumatoid factor), IL-12, and IL-17 were sensitive and specific as favorable predictors of a rituximab response as measured by an improved 6MWD (receiver operating characteristic area under the curve, 0.88-0.95). Conclusions: B-cell depletion therapy is a potentially effective and safe adjuvant treatment for SSc-PAH. Future studies in these patients can confirm whether the identified biomarkers predict rituximab responsiveness. Clinical trial registered with www.clinicaltrails.gov (NCT01086540).
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Affiliation(s)
- Roham T Zamanian
- Division of Pulmonary, Allergy, and Critical Care Medicine and.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, California
| | - David Badesch
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Lorinda Chung
- Division of Pulmonary, Allergy, and Critical Care Medicine and.,Division of Rheumatology and Immunology, Stanford University, Stanford University School of Medicine, Stanford, California
| | - Robyn T Domsic
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Thomas Medsger
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | | | - Carla D'Aveta
- Rho Federal Systems Division, Durham, North Carolina
| | | | - R James White
- Division of Pulmonary and Critical Care Medicine, University of Rochester, Rochester, New York
| | - Paul M Hassoun
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Fernando Torres
- Division of Pulmonary and Critical Care Medicine, University of Texas Southwestern, Dallas, Texas
| | - Andrew J Sweatt
- Division of Pulmonary, Allergy, and Critical Care Medicine and.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, California
| | - Jerry A Molitor
- Division of Rheumatic and Autoimmune Diseases, University of Minnesota, Minneapolis, Minnesota
| | - Dinesh Khanna
- Division of Rheumatology, University of Michigan, Ann Arbor, Michigan
| | - Holden Maecker
- Division of Pulmonary, Allergy, and Critical Care Medicine and
| | - Beverly Welch
- National Institute of Allergy and Infectious Diseases, Bethesda, Maryland; and
| | - Ellen Goldmuntz
- National Institute of Allergy and Infectious Diseases, Bethesda, Maryland; and
| | - Mark R Nicolls
- Division of Pulmonary, Allergy, and Critical Care Medicine and.,Vera Moulton Wall Center for Pulmonary Vascular Disease, Stanford, California.,Veterans Affairs Palo Alto Health Care System, Palo Alto, California
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12
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Arvia R, Margheri F, Stincarelli MA, Laurenzana A, Fibbi G, Gallinella G, Ferri C, Del Rosso M, Zakrzewska K. Parvovirus B19 activates in vitro normal human dermal fibroblasts: a possible implication in skin fibrosis and systemic sclerosis. Rheumatology (Oxford) 2021; 59:3526-3532. [PMID: 32556240 PMCID: PMC7590411 DOI: 10.1093/rheumatology/keaa230] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/08/2020] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Fibrosis is the most characteristic pathological hallmark of SSc, a connective tissue disease characterized by vascular and immunological abnormalities, inflammation and enhanced extracellular matrix production, leading to progressive fibrosis of skin and internal organs. We previously demonstrated that parvovirus B19 (B19V) can infect normal human dermal fibroblasts (NHDFs) and that B19V persists in SSc fibroblasts. In this study, we investigated whether parvovirus B19V is able to activate in vitro NHDFs and to induce in these cells some phenotypic features similar to that observed in the SSc fibroblasts. METHODS We preliminarily analysed the time course of B19V infection in cultured NHDFs, then we investigated the ability of B19V to induce cell migration, invasive phenotype and mRNA expression of some profibrotic and/or proinflammatory genes. RESULTS We confirmed our previous findings that B19V infects NHDFs, but the infection is not productive. After incubation with B19V, NHDFs showed a significant increase of both migration and invasiveness, along with mRNA expression of different profibrotic genes (α-SMA, EDN-1, IL-6, TGF-β1 receptors 1 and 2, Col1α2), some genes associated with inflammasome platform (AIM2, IFI16, IL-1β, CASP-1) and genes for metalloprotease (MMP 2, 9 and 12). CONCLUSION These data suggest that B19V can activate dermal fibroblasts and may have a role in the pathogenesis of fibrosis. B19V-induced fibroblast migration and invasiveness could be due to the B19V-associated MMP9 overexpression and activation. Moreover, the up-regulation of MMP12, typical of SSc, could link the B19V infection of fibroblasts to the anti-angiogenic process.
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Affiliation(s)
| | - Francesca Margheri
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence
| | | | - Anna Laurenzana
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence
| | - Gabriella Fibbi
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence
| | - Giorgio Gallinella
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna
| | - Clodoveo Ferri
- Rheumatology Unit, Medical School, University of Modena and Reggio Emilia, University-Hospital Policlinic of Modena, Modena, Italy
| | - Mario Del Rosso
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence
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13
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Tsitsikas DA, Bristowe J, Abukar J. Fat Embolism Syndrome in Sickle Cell Disease. J Clin Med 2020; 9:jcm9113601. [PMID: 33171683 PMCID: PMC7695297 DOI: 10.3390/jcm9113601] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/05/2020] [Accepted: 11/07/2020] [Indexed: 12/31/2022] Open
Abstract
Fat embolism syndrome is a devastating complication of sickle cell disease resulting from extensive bone marrow necrosis and associated with high mortality rates, while survivors often suffer severe neurological sequelae. Despite that, the syndrome remains under-recognised and under-diagnosed. Paradoxically, it affects exclusively patients with mild forms of sickle cell disease, predominantly HbSC and HbSβ+. A significant number of cases occur in the context of human parvovirus B19 infection. We provide here a brief summary of the existing literature and describe our experience treating 8 patients in our institution. One patient had HbSS, 6 HbSC and 1 HbSβ+. All patients developed type I respiratory failure and neurological involvement either at presentation or within the first 72 h. The most striking laboratory abnormality was a 100-fold increase of the serum ferritin from baseline. Seven patients received emergency red cell exchange and 1 simple transfusion. Two patients (25%) died, 2 patients (25%) suffered severe neurological impairment and 1 (12%) mild neurological impairment on discharge, while 3 (38%) patients made a complete recovery. With long-term follow-up, 1 patient with severe neurological impairment and one patient with mild neurological impairment made dramatic improvements, making the long-term complete recovery or near complete recovery rate 63%. Immediate red cell exchange transfusion can be lifesaving and should be instituted as soon as the syndrome is suspected. However, as the outcomes remain unsatisfactory despite the increasing use of red cell exchange, we suggest additional therapeutic measures such as therapeutic plasma exchange and pre-emptive transfusion for high risk patients.
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Affiliation(s)
- Dimitris A. Tsitsikas
- Haemoglobinopathy Service, Department of Haematology, Homerton University Hospital NHS Foundation Trust, London E9 6SR, UK;
- Correspondence:
| | - Jessica Bristowe
- Research and Innovation Department, Homerton University Hospital NHS Foundation Trust, London E9 6SR, UK;
| | - Jibril Abukar
- Haemoglobinopathy Service, Department of Haematology, Homerton University Hospital NHS Foundation Trust, London E9 6SR, UK;
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth PO1 2UP, UK
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Ouchene L, Muntyanu A, Lavoué J, Baron M, Litvinov IV, Netchiporouk E. Toward Understanding of Environmental Risk Factors in Systemic Sclerosis [Formula: see text]. J Cutan Med Surg 2020; 25:188-204. [PMID: 32988228 DOI: 10.1177/1203475420957950] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
IMPORTANCE Systemic sclerosis (SSc) is a severe, chronic, and incurable autoimmune fibrotic skin disease with significant extracutaneous involvement. Low concordance rate in twin studies and unequal geographic distribution of SSc argues for importance of environment in disease initiation and progression. OBJECTIVE In this manuscript we provide a summary of all investigated potential external risk factors for SSc. DATA SOURCES A literature search in PubMed and EMBASE database was performed for studies published until January 1, 2020 by 2 reviewers (EN and LO) independently. FINDINGS Occupational and/or environmental exposures to silica and organic solvents are associated with increased incidence and severity of SSc. Exposure to epoxy resins, asbestos, and particulate air pollution favors increased risk of SSc, but data are based on limited number of observational studies. There is insufficient evidence to conclude an association between SSc development and other occupational (eg, welding fumes) or personal exposures (eg, smoking, vitamin D deficiency). Association of SSc with silicone breast implants has been disproven. Infectious pathogens (eg, Helicobacter pylori and angiotropic viruses) and dysbiosis seem to play a role in SSc development and severity, but their role remains to be clarified. CONCLUSIONS AND RELEVANCE It may be prudent to counsel our patients with SSc (or those at risk of SSc) to avoid occupations with exposure to silica, organic solvents, asbestos and epoxy resins; restraint from smoking, using cocaine or drugs with pro-fibrotic potential. While the association between low vitamin D and SSc remains to be confirmed, we believe that SSc patients should be encouraged to maintain healthy vitamin D levels as benefits outweigh the risks.
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Affiliation(s)
- Lydia Ouchene
- 12367 Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Anastasiya Muntyanu
- 54473 Division of Dermatology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Jérôme Lavoué
- 5622 Department of Environmental and Occupational Health, School of Public Health, Université de Montreal, Montreal, Québec, Canada
| | - Murray Baron
- 5621 Division of Rheumatology, Department of Medicine, Jewish General Hospital, Montreal, QC, Canada
| | - Ivan V Litvinov
- 54473 Division of Dermatology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Elena Netchiporouk
- 54473 Division of Dermatology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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Im JH, Chung MH, Park YK, Kwon HY, Baek JH, Lee SY, Lee JS. Antinuclear antibodies in infectious diseases. Infect Dis (Lond) 2019; 52:177-185. [PMID: 31718355 DOI: 10.1080/23744235.2019.1690676] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction: Antinuclear antibody (ANA) tests are widely used for the diagnosis of autoimmune diseases, but ANAs are also commonly found in patients with various infections. This retrospective study aimed to investigate the relationship between infections and ANA status.Methods: Patients that visited the Department of Infectious Diseases at Inha University Hospital between January 2007 and July 2018 were investigated. We analysed their ANA test results and reviewed rheumatic and infectious diagnoses of patients with positive ANA findings.Results: Of the 9,320 patients during the study period, 1,111 underwent ANA testing and 110 tested positive. Seven of the 110 patients were previously diagnosed with ANA-positive disease, and 21 were diagnosed with autoimmune disease during the present study. Of the remaining 82 patients, 43 were confirmed with infectious disease. The most common pathogen was Mycobacterium tuberculosis (n = 10), followed by Treponema pallidum (n = 5), Orientia tsutsugamushi (n = 5), Escherichia coli (n = 5), Bartonella henselae (n = 3), and human immunodeficiency virus (n = 3). Of the 39 patients without a confirmed pathogen, 7 were seropositive for O. tsutsugamushi, B. henselae, or Rickettsia spp. Patients were observed at an average of 24 weeks in our hospital. One patient developed systemic lupus erythematosus after being diagnosed with Epstein-Barr virus-induced infectious mononucleosis, and another patient developed adult-onset Still's disease after being diagnosed with scrub typhus.Conclusion: This study showed that various relationships exist between infections and rheumatic diseases. In particular, several patients with a positive ANA test result were found to have intracellular infections such as mycobacterial infections, syphilis, or scrub typhus.
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Affiliation(s)
- Jae Hyoung Im
- Division of Infectious Diseases, Department of Internal Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Moon-Hyun Chung
- Department of Internal Medicine, Seigui-po Medical Center, Jeju-Do, Republic of Korea
| | - Young Kyoung Park
- Translation Research Center, Inha University School of Medicine, Incheon, Republic of Korea
| | - Hea Yoon Kwon
- Division of Infectious Diseases, Department of Internal Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Ji Hyeon Baek
- Division of Infectious Diseases, Department of Internal Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Seung Yun Lee
- Department of Rheumatology, Inha University Hospital, Incheon, Republic of Korea
| | - Jin-Soo Lee
- Division of Infectious Diseases, Department of Internal Medicine, Inha University School of Medicine, Incheon, Republic of Korea
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Zakrzewska K, Arvia R, Torcia MG, Clemente AM, Tanturli M, Castronovo G, Sighinolfi G, Giuggioli D, Ferri C. Effects of Parvovirus B19 In Vitro Infection on Monocytes from Patients with Systemic Sclerosis: Enhanced Inflammatory Pathways by Caspase-1 Activation and Cytokine Production. J Invest Dermatol 2019; 139:2125-2133.e1. [DOI: 10.1016/j.jid.2019.03.1144] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 03/22/2019] [Accepted: 03/22/2019] [Indexed: 01/28/2023]
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Kishore J, Kishore D. Clinical impact & pathogenic mechanisms of human parvovirus B19: A multiorgan disease inflictor incognito. Indian J Med Res 2019; 148:373-384. [PMID: 30666000 PMCID: PMC6362725 DOI: 10.4103/ijmr.ijmr_533_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Human parvovirus B19 (B19V) causes myriads of clinical diseases; however, owing to lack of awareness and undetermined clinical impact, it has failed to become a virus pathogen of global concern. Cryptically, B19V causes significant morbidity and mortality. Half of the world population and 60 per cent of Indians are known to be serologically naive and are at risk of acquiring B19V infections. Cumulatively, our data showed 21.3 per cent B19V-infected patients with juvenile chronic arthropathy, recurrent abortions, multi-transfused thalassaemia and leukaemia. In addition, B19V-infected cases that ended fatally included patients with pure red cell aplasia, fulminant hepatitis and haemophagocytic syndrome. Novel clinical associations of B19V observed were amegakaryocytic thrombocytopaenia, myositis and non-occlusive ischaemic gangrene of bowel. B19V possesses multiple receptors which are distributed widely in human tissues. Vascular endothelial cell infection by B19V causes endothelialitis and vasculitic injuries besides antibody-dependent enhancement which empowered B19V to cause multiorgan diseases. Owing to lack of suitable animal model for B19V, true causal role remains to be determined, but numerous reports on B19V infections substantiate a causal role in multiorgan diseases. Hence, B19V infections need to be recognized, investigated and treated besides making efforts on vaccine developments.
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Affiliation(s)
- Janak Kishore
- Division of Virology, Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Divya Kishore
- Guru Nanak Eye Centre, Maulana Azad Medical College, New Delhi, India
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Unmet Needs in Systemic Sclerosis Understanding and Treatment: the Knowledge Gaps from a Scientist's, Clinician's, and Patient's Perspective. Clin Rev Allergy Immunol 2019; 55:312-331. [PMID: 28866756 PMCID: PMC6244948 DOI: 10.1007/s12016-017-8636-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Systemic sclerosis (SSc) is a highly heterogeneous disease caused by a complex molecular circuitry. For decades, clinical and molecular research focused on understanding the primary process of fibrosis. More recently, the inflammatory, immunological and vascular components that precede the actual onset of fibrosis, have become a matter of increasing scientific scrutiny. As a consequence, the field has started to realize that the early identification of this syndrome is crucial for optimal clinical care as well as for understanding its pathology. The cause of SSc cannot be appointed to a single molecular pathway but to a multitude of molecular aberrances in a spatial and temporal matter and on the backbone of the patient's genetic predisposition. These alterations underlie the plethora of signs and symptoms which patients experience and clinicians look for, ultimately culminating in fibrotic features. To solve this complexity, a close interaction among the patient throughout its "journey," the clinician through its clinical assessments and the researcher with its experimental design, seems to be required. In this review, we aimed to highlight the features of SSc through the eyes of these three professionals, all with their own expertise and opinions. With this unique setup, we underscore the importance of investigating the role of environmental factors in the onset and perpetuation of SSc, of focusing on the earliest signs and symptoms preceding fibrosis and on the application of holistic research approaches that include a multitude of potential molecular alterations in time in an unbiased fashion, in the search for a patient-tailored cure.
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Immunohistochemical Demonstration of Parvovirus B19 Viral Protein 2 in Periflexural Exanthema in an Adult, Supporting Antibody-Dependent Enhancement as Means of Endothelial Uptake of the Virus. Am J Dermatopathol 2018; 40:e19-e24. [DOI: 10.1097/dad.0000000000000946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Voelkel NF, Tamosiuniene R, Nicolls MR. Challenges and opportunities in treating inflammation associated with pulmonary hypertension. Expert Rev Cardiovasc Ther 2016; 14:939-51. [PMID: 27096622 DOI: 10.1080/14779072.2016.1180976] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Inflammatory cells are present in the lungs from patients with many, if not all, forms of severe pulmonary hypertension. AREAS COVERED Historically the first inflammatory cell identified in the pulmonary vascular lesions was the mast cell. T and B lymphocytes, as well as macrophages, are present in and around the pulmonary arterioles and many patients have elevated blood levels of interleukin 1 and 6; some patients show elevated levels of leukotriene B4. An overlap between collagen-vascular disease-associated pulmonary arterial hypertension (PAH) and idiopathic PAH exists, yet only a few studies have been designed that evaluate the effect of anti-inflammatory treatments. Here we review the pertinent data that connect PAH and inflammation/autoimmune dysregulation and evaluate experimental models of severe PAH with an emphasis on the Sugen/athymic rat model of severe PAH. Expert commentary: We postulate that there are several inflammatory phenotypes and predict that there will be several anti-inflammatory treatment strategies for severe PAH.
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Affiliation(s)
- Norbert F Voelkel
- a School of Pharmacy , Virginia Commonwealth University , Richmond , VA , USA
| | - Rasa Tamosiuniene
- b Pulmonary and Critical Care Medicine Division , Stanford University , Palo Alto , CA , USA
| | - Mark R Nicolls
- b Pulmonary and Critical Care Medicine Division , Stanford University , Palo Alto , CA , USA
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De Martinis M, Ciccarelli F, Sirufo MM, Ginaldi L. An overview of environmental risk factors in systemic sclerosis. Expert Rev Clin Immunol 2015; 12:465-78. [DOI: 10.1586/1744666x.2016.1125782] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Kerr JR. The role of parvovirus B19 in the pathogenesis of autoimmunity and autoimmune disease. J Clin Pathol 2015; 69:279-91. [PMID: 26644521 DOI: 10.1136/jclinpath-2015-203455] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 11/06/2015] [Indexed: 11/03/2022]
Abstract
Human parvovirus B19 is a single-stranded DNA virus which preferentially targets the erythroblasts in the bone marrow. B19 infection commonly causes erythema infectiosum, arthralgia, fetal death, transient aplastic crisis in patients with shortened red cell survival, and persistent infection in people who are immunocompromised. Less common clinical manifestations include atypical skin rashes, neurological syndromes, cardiac syndromes, and various cytopenias. B19 infection has also been associated with development of a variety of different autoimmune diseases, including rheumatological, neurological, neuromuscular, cardiovascular, haematological, nephrological and metabolic. Production of a variety of autoantibodies has been demonstrated to occur during B19 infection and these have been shown to be key to the pathogenesis of the particular disease process in a significant number of cases, for example, production of rheumatoid factor in cases of B19-associated rheumatoid arthritis and production of anti-glutamic acid decarboxylase (GAD) in patients with B19-associated type 1 diabetes mellitus. B19 infection has also been associated with the development of multiple autoimmune diseases in 12 individuals. Documented mechanisms in B19-associated autoimmunity include molecular mimicry (IgG antibody to B19 proteins has been shown to cross react with a variety of recognised human autoantigens, including collagen II, keratin, angiotensin II type 1 receptor, myelin basic protein, cardiolipin, and platelet membrane glycoprotein IIb/IIIa), B19-induced apoptosis with presentation of self-antigens to T lymphocytes, and the phospholipase activity of the B19 unique VP1 protein.
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Marie I, Gehanno JF. Environmental risk factors of systemic sclerosis. Semin Immunopathol 2015; 37:463-73. [DOI: 10.1007/s00281-015-0507-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 06/16/2015] [Indexed: 12/16/2022]
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Antibody-mediated enhancement of parvovirus B19 uptake into endothelial cells mediated by a receptor for complement factor C1q. J Virol 2014; 88:8102-15. [PMID: 24807719 DOI: 10.1128/jvi.00649-14] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Despite its strong host tropism for erythroid progenitor cells, human parvovirus B19 (B19V) can also infect a variety of additional cell types. Acute and chronic inflammatory cardiomyopathies have been associated with a high prevalence of B19V DNA in endothelial cells of the myocardium. To elucidate the mechanisms of B19V uptake into endothelium, we first analyzed the surface expression of the well-characterized primary B19V receptor P antigen and the putative coreceptors α5β1 integrins and Ku80 antigen on primary and permanent endothelial cells. The receptor expression pattern and also the primary attachment levels were similar to those in the UT7/Epo-S1 cell line regarded as functional for B19V entry, but internalization of the virus was strongly reduced. As an alternative B19V uptake mechanism in endothelial cells, we demonstrated antibody-dependent enhancement (ADE), with up to a 4,000-fold increase in B19V uptake in the presence of B19V-specific human antibodies. ADE was mediated almost exclusively at the level of virus internalization, with efficient B19V translocation to the nucleus. In contrast to monocytes, where ADE of B19V has been described previously, enhancement does not rely on interaction of the virus-antibody complexes with Fc receptors (FcRs), but rather, involves an alternative mechanism mediated by the heat-sensitive complement factor C1q and its receptor, CD93. Our results suggest that ADE represents the predominant mechanism of endothelial B19V infection, and it is tempting to speculate that it may play a role in the pathogenicity of cardiac B19V infection. Importance: Both efficient entry and productive infection of human parvovirus B19 (B19V) seem to be limited to erythroid progenitor cells. However, in vivo, the viral DNA can also be detected in additional cell types, such as endothelial cells of the myocardium, where its presence has been associated with acute and chronic inflammatory cardiomyopathies. In this study, we demonstrated that uptake of B19V into endothelial cells most probably does not rely on the classical receptor-mediated route via the primary B19V receptor P antigen and coreceptors, such as α5β1 integrins, but rather on antibody-dependent mechanisms. Since the strong antibody-dependent enhancement (ADE) of B19V entry requires the CD93 surface protein, it very likely involves bridging of the B19V-antibody complexes to this receptor by the complement factor C1q, leading to enhanced endocytosis of the virus.
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Updates on morphea: role of vascular injury and advances in treatment. Autoimmune Dis 2013; 2013:467808. [PMID: 24319593 PMCID: PMC3844232 DOI: 10.1155/2013/467808] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 09/18/2013] [Indexed: 01/23/2023] Open
Abstract
Morphea and systemic sclerosis are fibrosing disorders of the skin that share common inflammatory and immunologic pathways that are responsible for the vascular changes, increased collagen production, and extracellular matrix proliferation seen in both conditions. Recent advances in molecular biology techniques have furthered our knowledge of the potential underlying pathogenic mechanisms and offer new and provocative areas of research for novel diagnostic and therapeutic interventions. This review focuses on the role of vascular injury in the development of morphea, the use of ultrasonography as a diagnostic modality, and well-established and newly proposed treatments.
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Abstract
Most infectious agents, such as viruses, bacteria and parasites, can trigger autoimmunity via different mechanisms. The development of an autoimmune disorder after infection tends to occur in genetically susceptible individuals. Some parameters, such as genetic predisposition, feature of the infectious agent and sometimes protective effect of the infections, have a significant role in this process. These parameters and various pathogens that could lead to enhancement or exacerbation of autoimmune disease were examined in this review. Recent studies were reviewed from a microbiological perspective.
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Immunohistochemical detection of parvovirus B19 in "gloves and socks" papular purpuric syndrome: direct evidence for viral endothelial involvement. Report of three cases and review of the literature. Am J Dermatopathol 2012; 33:790-5. [PMID: 22024574 DOI: 10.1097/dad.0b013e318221bc41] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Papular-purpuric "gloves and socks" syndrome is a distinctive dermatosis featuring acral pruritus, edema, and petechiae. It has been attributed in most--but not all--reported cases to Parvovirus B19 infection, on the grounds of serological proof of recent infection or detection of viral DNA by polymerase chain reaction in patient serum or biopsies. We report the immunohistochemical detection of Parvovirus B19 VP2 structural protein in the endothelial lining of dermal blood vessels in 3 examples of Papular-purpuric "gloves and socks" syndrome and review previously described immunohistochemical investigations in cutaneous involvement by this infection.
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Gross O, Tschernatsch M, Bräu ME, Hempelmann G, Birklein F, Kaps M, Madlener K, Blaes F. Increased seroprevalence of parvovirus B 19 IgG in complex regional pain syndrome is not associated with antiendothelial autoimmunity. Eur J Pain 2012; 11:237-40. [PMID: 16545972 DOI: 10.1016/j.ejpain.2006.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2005] [Revised: 11/01/2005] [Accepted: 01/27/2006] [Indexed: 11/18/2022]
Abstract
The etiology of complex regional pain syndrome (CRPS) is unclear yet. Recently autoantibodies and antecedent viral infections have been discussed to be involved in the pathogenesis of CRPS. We investigated sera from 39 CRPS patients and healthy controls for parvovirus B19 IgG and the occurrence of antiendothelial autoantibodies (AECA). CRPS patients showed a higher seroprevalence of parvovirus B19 IgG than controls (p < 0.01). All CRPS 2 patients were positive. 10.2% of the CRPS patients and 10.0% of the controls had AECA (n.s.) and AECA were not associated with parvovirus B19 seropositivity. Our findings suggest the involvement of parvovirus B19, but not autoantibody-mediated endothelial cell damage, in the pathogenesis of CRPS.
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Affiliation(s)
- Oliver Gross
- Department of Neurology, Justus-Liebig-University, Am Steg 14, 35385 Giessen, Germany
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Magro CM, Poe JC, Kim C, Shapiro L, Nuovo G, Crow MK, Crow YJ. Degos disease: a C5b-9/interferon-α-mediated endotheliopathy syndrome. Am J Clin Pathol 2011; 135:599-610. [PMID: 21411783 DOI: 10.1309/ajcp66qimfarlzki] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Degos disease is a lethal small vessel angiopathy targeting the skin, gastrointestinal tract, and central nervous system, potentially developing in the setting of known autoimmune disease, although forme fruste primary variants exist. Its pathogenetic basis is unknown. Four cases of Degos disease were encountered in archival material, representing 2 men, ages 38 and 43 years, and 2 females, ages 48 and 2 years; 3 patients died of disease. All had characteristic skin lesions with gastrointestinal involvement; other affected organs included brain in one and pericardium and pleura in another. Skin biopsies showed pauci-inflammatory thrombogenic microangiopathy with endothelial cell injury. Extracutaneous organs demonstrated fibromucinous occlusive arteriopathy. Prominent vascular C5b-9 was seen in the skin, gastrointestinal tract, and brain. All cases had evidence of high expression of interferon-α (based on tissue expression of MXA, a type I interferon-inducible protein), endothelial tubuloreticular inclusions, and an interferon gene signature in peripheral blood mononuclear cells. The MXA expression paralleled the pattern of C5b-9 deposition. Degos disease is a distinct vascular injury syndrome whereby a dysregulated interferon-α response in concert with membranolytic attack complex deposition may contribute to the unique vascular changes. Understanding the pathophysiology of the disease process could lead to more directed therapies, including terminal complement inhibition with agents such as eculizumab.
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Grossman C, Dovrish Z, Shoenfeld Y, Amital H. Do infections facilitate the emergence of systemic sclerosis? Autoimmun Rev 2010; 10:244-7. [PMID: 20863912 DOI: 10.1016/j.autrev.2010.09.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by vascular obliteration, excessive extracellular matrix deposition, and fibrosis of the connective tissues of the skin, lungs, gastrointestinal tract, heart, and kidneys. Infections are believed to play a role in the immunopathogenesis of SSc. A number of infectious agents have been proposed as possible triggering factors in SSc. Homology between viruses and autoantibody targets suggests that molecular mimicry may play a role in the initiation of antibody response in disorders characterized by diffuse vascular disease, mainly SSc. Four pathogenic hypotheses have been proposed: molecular mimicry, endothelial cell damage, super-antigens, and microchimerism. Although several studies have provided important information linking infectious agents to SSc, a clear, direct association is still missing. It is very likely that the infectious agents are cofactors in a specific hormonal and environmental setting that mounts an immune reaction, which leads to the emergence of the disorder.
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Affiliation(s)
- Chagai Grossman
- Department of Medicine D, Meir Medical Center, Kefar-Saba Israel, Sackler faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
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Saleh Z, Arayssi T, Saleh Z, Ghosn S. Superficial morphea: 20-year follow up in a patient with concomitant psoriasis vulgaris. J Cutan Pathol 2009; 36:1105-8. [DOI: 10.1111/j.1600-0560.2008.01234.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Magro CM, Iwenofu OH, Kearns MJ, Nuovo GJ, Dyrsen ME, Segal JP. Fulminant and accelerated presentation of dermatomyositis in two previously healthy young adult males: a potential role for endotheliotropic viral infection. J Cutan Pathol 2009; 36:853-8. [DOI: 10.1111/j.1600-0560.2008.01171.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Karai LJ, Bergfeld WF. Recent advances in T-cell regulation relevant to inflammatory dermatopathology. J Cutan Pathol 2009; 36:721-8. [DOI: 10.1111/j.1600-0560.2008.01241.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Placental endothelial cells can be productively infected by Parvovirus B19. J Clin Virol 2009; 44:33-8. [DOI: 10.1016/j.jcv.2008.10.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2008] [Revised: 09/18/2008] [Accepted: 10/16/2008] [Indexed: 01/13/2023]
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Kumano K. [Various clinical symptoms in human parvovirus B19 infection]. NIHON RINSHO MEN'EKI GAKKAI KAISHI = JAPANESE JOURNAL OF CLINICAL IMMUNOLOGY 2008; 31:448-453. [PMID: 19122375 DOI: 10.2177/jsci.31.448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Human parvovirus B19 infection causes erythema infectiosum in child, aplastic crisis in patients with chronic hemolytic anemia, chronic pure red cell aplasia in immunocompromised patients and hydrops fetalis. Human parvovirus B19 causes arthritis and acute glomerulonephritis due to immunological mechanism. Other disorders, rheumatoid arthritis, vasculitis and thrombotic microangiopathy, are linked in human parvovirus B19 infection. Parvovirus B19 infection causes choronic rheumatoid-like arthropathy. Autoantibody and low complement were seen in acute human parvovirus infection, and parvovirus B19 infection present clinically lupus like tableau.
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Affiliation(s)
- Kotaro Kumano
- Pulmonary Medicine and Clinical Immunology, Dokkyo University School of Medicine
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Tzang BS, Tsai CC, Chiu CC, Shi JY, Hsu TC. Up-regulation of adhesion molecule expression and induction of TNF-α on vascular endothelial cells by antibody against human parvovirus B19 VP1 unique region protein. Clin Chim Acta 2008; 395:77-83. [DOI: 10.1016/j.cca.2008.05.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2007] [Revised: 04/18/2008] [Accepted: 05/12/2008] [Indexed: 10/22/2022]
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Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by vascular obliteration, excessive extracellular matrix deposition and fibrosis of the connective tissues of the skin, lungs, gastrointestinal tract, heart, and kidneys. Numerous infectious agents (bacterial and viral) have been proposed as possible triggering factors (Parvovirus B19, Cytomegalovirus, Epstein-Barr virus, Retroviruses). Homology between viruses and autoantibody targets suggests that molecular mimicry may have a role in initiating antibody response in different disorders characterized by diffuse vascular disease, including SSc. Endothelial cell may be infected bacteria or viruses that play a particular role in inducing vasculitis. The pathogenic hypothesis include: a mechanism of molecular mimicry, the role played by endothelial cell damage, the presence of superantigens and the role of microchimeric cells. Although several studies provide important information linking infectious agents to SSc, a direct casual association between infections and SSc is still missing. In SSc viral products could synergize with other factors in the microenvironment predisposing to SSc development.
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Affiliation(s)
- Silvia Bellando Randone
- Department of Biomedicine, DENOThe Centre, Division of Rheumatology AOUC, University of Florence, Florence, Italy.
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Dyrsen ME, Iwenofu OH, Nuovo G, Magro CM. Parvovirus B19-associated catastrophic endothelialitis with a Degos-like presentation. J Cutan Pathol 2008; 35 Suppl 1:20-5. [PMID: 18537856 DOI: 10.1111/j.1600-0560.2007.00974.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Parvovirus B19 is a single-stranded DNA virus exhibiting affinity for a variety of cell types including endothelial cells. The basis of the affinity is globoside expression, the receptor for B19. B19 endothelial cell parasitism accelerates endothelial cell apoptosis, potentially critical in inducing neoantigenicity and secondary antibody formation. A 38-year-old previously healthy male developed intestinal and cutaneous infarction, elevated creatinine phosphokinase (CPK) levels and progressive cytopenias. The basis of his clinical presentation was unclear until a skin biopsy suggested a potential role for virally mediated endothelial cell injury. Hematoxylin and eosin, immunohistochemical, immunofluorescent and reverse transcriptase in situ polymerase chain reaction studies were conducted on skin biopsies to assess for viral triggers. B19 viremia and localization of B19 RNA transcripts to vascular endothelium were uncovered. A diagnosis of catastrophic endothelial cell injury attributable to B19 infection was rendered. The patient showed significant improvement with intravenous immunoglobulin (IVIG). Parvovirus B19 is a ubiquitous virus that in the majority of affected patients remains asymptomatic. Nevertheless, because of its ability to infect endothelium it can cause severe multiorgan endothelial cell injury.
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Affiliation(s)
- Molly E Dyrsen
- Dermatopathology Division, Department of Pathology, Weill Medical College Cornell, New York, NY, USA
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Abstract
BACKGROUND Dermatomyositis (DM) is a distinctive systemic connective tissue disease whereby the skin defines a cardinal site of involvement. There exists a body of literature, which suggests that a significant component of its clinical manifestations may be related to endothelial cell injury. We have postulated in the past that anti-endothelial cell antibodies may be the defining trigger leading to endothelial cell dysfunction. The primary organs affected by DM are the skin and muscle. A significant albeit rare complication is pulmonary fibrosis, which our recent study postulated to be attributable to an autoimmune endothelialitis. DESIGN We describe six patients, four women and two men who ranged in age from 3 to 60 years, and had classic clinical presentations and cutaneous lesions of DM without any supervening clinical changes indicative of cutaneous sclerosis. RESULTS Skin biopsies showed cell-poor interface dermatitis with variable dermal mucin and C5b-9 within the cutaneous vasculature. However, at variance with classic DM was the presence of a sclerodermoid tissue reaction, which was of variable depth. All of these patients had severe muscle involvement. One pediatric patient had concomitant significant cutaneous, central nervous system and oral mucosal ischemic infarcts. Significant pulmonary disease ensued in the four adult patients, manifesting as pulmonary fibrosis in two, diffuse alveolar damage in one and diaphragmatic failure in one. In three patients, direct immunofluorescent studies were corroborative of immune-based microvascular injury while Western blot and/or indirect immunofluorescent studies showed anti-endothelial cell antibody activity within the serum of three patients. CONCLUSIONS The identification of sclerosis in biopsies of skin lesions typical clinically for DM may be a harbinger for more severe autoimmune-based endothelial cell injury phenomenon. One could speculate that its basis may be attributable to elevated serum levels of the natural fibrogenic factor, transforming growth factor beta, which in turn is released from damaged endothelium.
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Affiliation(s)
- Cynthia M Magro
- Department of Pathology, New York Presbyterian Hospital/Weill Medical College of Cornell University, New York, NY 10021, USA.
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Pulmonary Hypertension, Antiphospholipid Antibodies, and Syndromes. Clin Rev Allergy Immunol 2007; 32:153-8. [DOI: 10.1007/s12016-007-0012-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 01/29/2023]
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Xiang Y, Matsui T, Matsuo K, Shimada K, Tohma S, Nakamura H, Masuko K, Yudoh K, Nishioka K, Kato T. Comprehensive investigation of disease-specific short peptides in sera from patients with systemic sclerosis: complement C3f-des-arginine, detected predominantly in systemic sclerosis sera, enhances proliferation of vascular endothelial cells. ACTA ACUST UNITED AC 2007; 56:2018-30. [PMID: 17530642 DOI: 10.1002/art.22645] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To identify pathogenic and/or disease-specific short peptides in sera from patients with systemic sclerosis (SSc). METHODS Serum samples from 40 patients with SSc, 30 patients with systemic lupus erythematosus, 21 patients with rheumatoid arthritis, 30 patients with osteoarthritis, and 26 healthy donors were tested. Short peptides with molecular weights of smaller than approximately 3 kd, purified from the sera by magnetic bead-based hydrophobic interaction chromatography 18, were detected and their amino acid sequences determined using matrix-assisted laser desorption ionization-time-of-flight mass spectrometry. Effects of the identified peptides on fibroblasts and microvascular endothelial cells were tested using synthesized peptides and sera containing the peptides. RESULTS A group of peptides with mass/charge (m/z) values of 1,865, 1,778, 1,691, 1,563, and 1,450 were detected predominantly in the SSc sera. These peptides were identified as family members of complement C3f-des-arginine (DRC3f) derived from C3b. The level of DRC3f (m/z 1,865) was related to vascular involvement in SSc and to SSc disease activity. The synthesized peptides of DRC3f and C3f, as well as the filtrated sera containing DRC3f, enhanced proliferation of microvascular endothelial cells, but not fibroblasts. Both DRC3f and C3f increased production of transforming growth factor beta1 by dermal microvascular endothelial cells. CONCLUSION This comprehensive peptidomics analysis revealed the predominance of DRC3f in the sera of patients with SSc. Investigation of DRC3f may be a useful tool for the diagnosis and evaluation of disease activity in SSc. Moreover, its demonstrated effects on endothelial cells suggest a potential role for DRC3f in the pathophysiologic mechanisms of SSc.
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Affiliation(s)
- Yang Xiang
- St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
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Hokynar K, Norja P, Hedman K, Söderlund-Venermo M. Tissue persistence and prevalence of B19 virus types 1–3. Future Virol 2007. [DOI: 10.2217/17460794.2.4.377] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Human parvovirus B19 is a minute ssDNA virus that causes a wide variety of diseases, including erythema infectiosum, arthropathy, anemias and fetal death. In addition to the B19 prototype, two new variants (B19 types 2 and 3) have been identified. After primary infection, B19 genomic DNA has been shown to persist in solid tissues of not only symptomatic but also of constitutionally healthy, immunocompetent individuals. The viral DNA persists as an intact molecule without persistence-specific mutations, and via a storage mechanism with life-long capacity. Thus, the mere presence of B19 DNA in tissue cannot be used as a diagnostic criterion, although a possible role in the pathology of diseases, for example through mRNA or protein production, cannot be excluded. The molecular mechanism, host-cell type and possible clinical significance of tissue persistence are yet to be elucidated.
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Affiliation(s)
- Kati Hokynar
- University of Helsinki, Haartman Institute, Department of Virology, PO Box 21 (Haartmaninkatu 3), FIN-00014, Finland
| | - Päivi Norja
- University of Helsinki, Haartman Institute, Department of Virology, PO Box 21 (Haartmaninkatu 3), FIN-00014, Finland
| | - Klaus Hedman
- University of Helsinki & Helsinki University Central Hospital Laboratory, Haartman Institute, Department of Virology, PO Box 21 (Haartmaninkatu 3), FIN-00014, Finland
| | - Maria Söderlund-Venermo
- University of Helsinki, Haartman Institute, Department of Virology, PO Box 21 (Haartmaninkatu 3), FIN-00014, Finland
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Servettaz A, Agard C, Tamby MC, Guilpain P, Guillevin L, Mouthon L. Physiopathologie de la sclérodermie systémique: état des lieux sur une affection aux multiples facettes. Presse Med 2006; 35:1903-15. [PMID: 17159716 DOI: 10.1016/s0755-4982(06)74924-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Systemic sclerosis is a rare disease characterized by vascular hyperreactivity and collagen deposition. Endothelial cell, fibroblast and lymphocyte abnormalities have been reported in systemic sclerosis. Fibroblast dysfunction is characterized by uncontrolled activation of the transforming growth factor-beta (TGF-beta) pathway and excess synthesis of both connective tissue growth factor (CTGF) and free radicals. These promote the accumulation of extracellular matrix. Endothelial cells produce excess quantities of endothelin 1 and inducible NO synthase. They also undergo early apoptosis. Oxidative stress appears to play a major role in disease progression. Increased levels of interleukin 4, a profibrotic cytokine, have been detected in plasma and skin of systemic sclerosis patients. Autoantibodies are detectable in the serum of almost all systemic sclerosis patients. Some are directed against well-identified ubiquitous nuclear proteins and have no demonstrated pathogenic role. Other autoantibodies bind to endothelial cells or fibroblasts and may have a pathogenic role.
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MESH Headings
- Adult
- Animals
- Apoptosis
- Autoantibodies/immunology
- Cells, Cultured
- Disease Models, Animal
- Disease Progression
- Endothelium, Vascular/physiopathology
- Female
- Fibroblasts/metabolism
- Free Radicals
- Humans
- Interleukin-4/metabolism
- Male
- Mice
- Mice, Inbred BALB C
- Oxidative Stress
- Phenotype
- Pregnancy
- Scleroderma, Systemic/blood
- Scleroderma, Systemic/etiology
- Scleroderma, Systemic/genetics
- Scleroderma, Systemic/immunology
- Scleroderma, Systemic/metabolism
- Scleroderma, Systemic/pathology
- Scleroderma, Systemic/physiopathology
- Skin/metabolism
- Transforming Growth Factor beta/physiology
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Affiliation(s)
- Amélie Servettaz
- Université Paris-Descartes, Faculté de Médecine Paris-Descartes, UPRES EA 4058, Paris
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Peterlana D, Puccetti A, Corrocher R, Lunardi C. Serologic and molecular detection of human Parvovirus B19 infection. Clin Chim Acta 2006; 372:14-23. [PMID: 16765338 DOI: 10.1016/j.cca.2006.04.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2005] [Revised: 03/13/2006] [Accepted: 04/12/2006] [Indexed: 10/24/2022]
Abstract
Following its identification by Yvonne Cossart in 1975, human Parvovirus B19 has been recognized as the causative agent of a wide range of diseases. In childhood, the most common disease is a typical exanthema called "fifth disease". In adults, viral infection may be responsible for fetal loss and for aplastic anaemia in immuno-compromised patients. Because persistent viral infection may induce an autoimmune response, Parvovirus B19 is emerging as an environmental factor linked to the pathogenesis of autoimmunity. As a result of its expanding disease spectrum, Parvovirus B19 is the subject of intense efforts to clarify the pathogenesis of virus-related disorders as well as improve diagnostic laboratory testing including standardization of serological and nucleic acid-based detection assays. Enzymatic immunoassays based on conformational antigens have proven to be the most important tools for accurate diagnosis in the majority of cases. In other selected clinical cases, the detection of Parvovirus B19 infection can be complemented by PCR and, more recently, by the real-time PCR.
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Affiliation(s)
- Dimitri Peterlana
- Department of Clinical and Experimental Medicine, University of Verona, Verona, Italy
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Lupescu A, Bock CT, Lang PA, Aberle S, Kaiser H, Kandolf R, Lang F. Phospholipase A2 activity-dependent stimulation of Ca2+ entry by human parvovirus B19 capsid protein VP1. J Virol 2006; 80:11370-80. [PMID: 16956939 PMCID: PMC1642163 DOI: 10.1128/jvi.01041-06] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Recent reports demonstrated an association of human parvovirus B19 with inflammatory cardiomyopathy (iCMP), which is accompanied by endothelial dysfunction. As intracellular Ca(2+) activity is a key regulator of cell function and participates in mechanisms leading to endothelial dysfunction, the present experiments explored the effects of the B19 capsid proteins VP1 and VP2. A secreted phospholipase A2 (PLA2)-like activity has been located in the VP1 unique region of the B19 minor capsid protein. As PLA2 has recently been shown to activate the store-operated or capacitative Ca(2+) channel I(CRAC), we analyzed the impact of the viral PLA2 motif on Ca(2+) entry. We cloned the VP1 and VP2 genes isolated from a patient suffering from fatal B19 iCMP into eukaryotic expression vectors. We also generated a B19 replication-competent plasmid to demonstrate PLA2 activity under the control of the complete B19 genome. After the transfection of human endothelial cells (HMEC-1), cytosolic Ca(2+) activity was determined by utilizing Fura-2 fluorescence. VP1 and VP2 expression did not significantly modify basal cytosolic Ca(2+) activity or the decline of cytosolic Ca(2+) activity following the removal of extracellular Ca(2+). However, expression of VP1 and of the full-length B19 clone, but not of VP2, significantly accelerated the increase of cytosolic Ca(2+) activity following the readdition of extracellular Ca(2+) in the presence of thapsigargin, indicating an activation of I(CRAC.) The effect of VP1 was mimicked by the PLA2 product lysophosphatidylcholine and abolished by an inactivating mutation of the PLA2-encoding region of the VP1 gene. Our observations point to the activation of Ca(2+) entry by VP1 PLA2 activity, an effect likely participating in the pathophysiology of B19 infection.
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Affiliation(s)
- Adrian Lupescu
- Physiologisches Institut, der Universität Tübingen, Gmelinstr. 5, D-72076 Tübingen, Germany
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Magro CM, Wusirika R, Frambach GE, Nuovo GJ, Ferri C, Ross P. Autoimmune-Like Pulmonary Disease in Association With Parvovirus B19. Appl Immunohistochem Mol Morphol 2006; 14:208-16. [PMID: 16785792 DOI: 10.1097/01.pai.0000160730.54062.6d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Parvovirus B19, the agent responsible for fifth disease, has been emerging as a significant pathogenetic factor in various acute vasculitic syndromes such as Wegener's granulomatosis, Henoch-Schönlein purpura, and Kawasaki disease. It has also been implicated in more chronic vasculopathic syndromes, specifically in the context of scleroderma and dermatomyositis. The basis of this association is likely multifactorial; implicated mechanisms include the virus's affinity for endothelium, resulting in a state of neoantigenicity through varied mechanisms as well as the induction of tumor necrosis factor alpha, a factor involved in the propagation of ANCA-positive vasculitic syndromes. The authors present a series of 12 patients with interstitial lung disease including idiopathic pulmonary fibrosis, scleroderma-associated pulmonary fibrosis, lymphocytic interstitial pneumonitis, and septal capillaritis. In all cases there was evidence of chronic parvovirus B19 infection based on serologic assessment and the isolation of B19 DNA on lung samples in all patients. Furthermore, in two cases there was in situ localization of B19 RNA and tumor necrosis factor alpha to endothelium and stromal cells. On pathologic examination, there were varying degrees of both septal fibrosis and inflammation along with evidence of septal capillary injury. In those cases categorized as representing either scleroderma or idiopathic pulmonary fibrosis, the immunofluorescent studies showed evidence of anti-endothelial cell antibody formation. The ANCA-associated syndromes were, as expected, negative by fluorescent analysis. Significantly elevated factor VIII levels, a standard serologic index of endothelial cell injury, were seen in four of the six patients tested. The antiphospholipid profile revealed antiphospholipids in 7 of the 11 patients tested. This report highlights a possible causal role for parvovirus B19 in the pathogenesis of select pulmonary disorders.
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Affiliation(s)
- Cynthia M Magro
- Department of Pathology, Ohio State University, Columbus, Ohio, USA.
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Magro CM, Waldman WJ, Knight DA, Allen JN, Nadasdy T, Frambach GE, Ross P, Marsh CB. Idiopathic Pulmonary Fibrosis Related to Endothelial Injury and Antiendothelial Cell Antibodies. Hum Immunol 2006; 67:284-97. [PMID: 16720208 DOI: 10.1016/j.humimm.2006.02.026] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2005] [Indexed: 01/10/2023]
Abstract
Mechanisms underlying idiopathic pulmonary fibrosis are not well understood. This paper presents data supporting the hypothesis that microvascular endothelial cell injury and antiendothelial cell antibodies play roles in human idiopathic pulmonary fibrosis. Serologic and pathologic features of 40 patients diagnosed with idiopathic pulmonary fibrosis were evaluated. All patients had open lung biopsies indicating either usual or nonspecific interstitial pneumonitis. All biopsies had morphologic evidence of microvascular injury to the endothelium, and direct immunofluorescence testing revealed variable deposition of IgG, IgM, or IgA within septal microvasculature suggestive of humorally mediated microvascular injury. Ultrastructural studies revealed changes of endothelial cell injury and necrosis and evidence of repetitive episodes of microvascular injury characterized by basement membrane zone collagen deposition and lamellation. Serum samples demonstrated reactivity to multiple endothelial cell antigenic epitopes, and indirect immunofluorescent testing demonstrated a prominent pattern of fluorescence in pulmonary endothelial cell preparations. Serum samples were positive in 37/40 patients for antiphospholipid antibodies with one fourth having positive lupus anticoagulant tests accompanied by thrombotic episodes. In patients with idiopathic pulmonary fibrosis, Factor VIII levels and C-reactive protein levels were also elevated, supporting the presence of endothelial cell injury and inflammation. These data underscore a potential role for immune-based microvascular injury in the evolution of usual or nonspecific interstitial pneumonitis and indicate that those patients have evidence of microvascular injury and endothelial cell necrosis. The high prevalence of antiphospholipid antibodies in these patients may lead to an inherent thrombophilic tendency.
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Affiliation(s)
- Cynthia M Magro
- Department of Pathology, The Ohio State University, Columbus, OH, USA.
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Zakrzewska K, Cortivo R, Tonello C, Panfilo S, Abatangelo G, Giuggioli D, Ferri C, Corcioli F, Azzi A. Human parvovirus B19 experimental infection in human fibroblasts and endothelial cells cultures. Virus Res 2005; 114:1-5. [PMID: 15990190 DOI: 10.1016/j.virusres.2005.05.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2004] [Revised: 04/28/2005] [Accepted: 05/03/2005] [Indexed: 11/24/2022]
Abstract
With the aim to detect what kind of cells, in addition to erythroid progenitors, could be involved in the pathogenesis of B19 infection in some connective tissue diseases, primary cultures of human fibroblasts (HF) and endothelial cells (HUVEC) were exposed to a B19 positive serum (350 genome copies/cell). The presence of NS1 and VP1 mRNA, in both HF and HUVEC cultures 1, 2 and 6 days after the exposure, indicated infection by B19 virus. However, no significant increase of B19 DNA level in the infected HF and HUVEC cultures was detectable through the entire incubation period of 6 days. It is possible that HF and HUVEC are not permissive for B19 virus replication or, alternatively, that few cells only get infected by B19 virus. HF and HUVEC stimulation with different growth factors or cytokines could be required for a B19 productive infection to occur.
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Affiliation(s)
- K Zakrzewska
- Department of Public Health (Virology Unit), University of Firenze, Viale Morgagni 48, Firenze 50134, Italy
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