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You F, Nicco C, Harakawa Y, Yoshikawa T, Inufusa H. The Potential of Twendee X ® as a Safe Antioxidant Treatment for Systemic Sclerosis. Int J Mol Sci 2024; 25:3064. [PMID: 38474309 DOI: 10.3390/ijms25053064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by systemic skin hardening, which combines Raynaud's phenomenon and other vascular disorders, skin and internal organ fibrosis, immune disorders, and a variety of other abnormalities. Symptoms vary widely among individuals, and personalized treatment is sought for each patient. Since there is no fundamental cure for SSc, it is designated as an intractable disease with patients receiving government subsidies for medical expenses in Japan. Oxidative stress (OS) has been reported to play an important role in the cause and symptoms of SSc. HOCl-induced SSc mouse models are known to exhibit skin and visceral fibrosis, vascular damage, and autoimmune-like symptoms observed in human SSc. The antioxidant combination Twendee X® (TwX) is a dietary supplement consisting of vitamins, amino acids, and CoQ10. TwX has been proven to prevent dementia in humans with mild cognitive impairment and significantly improve cognitive impairment in an Alzheimer's disease mouse model by regulating OS through a strong antioxidant capacity that cannot be achieved with a single antioxidant ingredient. We evaluated the effectiveness of TwX on various symptoms of HOCl-induced SSc mice. TwX-treated HOCl-induced SSc mice showed significantly reduced lung and skin fibrosis compared to untreated HOCl-induced SSc mice. TwX also significantly reduced highly oxidized protein products (AOPP) in serum and suppressed Col-1 gene expression and activation of B cells involved in autoimmunity. These findings suggest that TwX has the potential to be a new antioxidant treatment for SSc without side effects.
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Affiliation(s)
- Fukka You
- Division of Anti-Oxidant Research, Life Science Research Center, Gifu University, Yanagito 1-1, Gifu 501-1194, Japan
- Anti-Oxidant Research Laboratory, Louis Pasteur Center for Medical Research, Tanakamonzen-cho 103-5, Sa-kyo-ku, Kyoto 606-8225, Japan
| | - Carole Nicco
- Université Paris Cité, 45 Rue des Saints-Pères, 75006 Paris, France
| | - Yoshiaki Harakawa
- Division of Anti-Oxidant Research, Life Science Research Center, Gifu University, Yanagito 1-1, Gifu 501-1194, Japan
| | - Toshikazu Yoshikawa
- Louis Pasteur Center for Medical Research, Tanakamonzen-cho 103-5, Sakyo-ku, Kyoto 606-8225, Japan
- School of Medicine, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Haruhiko Inufusa
- Division of Anti-Oxidant Research, Life Science Research Center, Gifu University, Yanagito 1-1, Gifu 501-1194, Japan
- Anti-Oxidant Research Laboratory, Louis Pasteur Center for Medical Research, Tanakamonzen-cho 103-5, Sa-kyo-ku, Kyoto 606-8225, Japan
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Jussila A, Zhang B, Kirti S, Atit R. Tissue fibrosis associated depletion of lipid-filled cells. Exp Dermatol 2024; 33:e15054. [PMID: 38519432 PMCID: PMC10977660 DOI: 10.1111/exd.15054] [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: 02/06/2024] [Accepted: 02/29/2024] [Indexed: 03/24/2024]
Abstract
Fibrosis is primarily described as the deposition of excessive extracellular matrix, but in many tissues it also involves a loss of lipid or lipid-filled cells. Lipid-filled cells are critical to tissue function and integrity in many tissues including the skin and lungs. Thus, loss or depletion of lipid-filled cells during fibrogenesis, has implications for tissue function. In some contexts, lipid-filled cells can impact ECM composition and stability, highlighting their importance in fibrotic transformation. Recent papers in fibrosis address this newly recognized fibrotic lipodystrophy phenomenon. Even in disparate tissues, common mechanisms are emerging to explain fibrotic lipodystrophy. These findings have implications for fibrosis in tissues composed of fibroblast and lipid-filled cell populations such as skin, lung, and liver. In this review, we will discuss the roles of lipid-containing cells, their reduction/loss during fibrotic transformation, and the mechanisms of that loss in the skin and lungs.
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Affiliation(s)
- Anna Jussila
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Brian Zhang
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Sakin Kirti
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Radhika Atit
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Dermatology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
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Ghincea A, Woo S, Sheeline Y, Pivarnik T, Fiorini V, Herzog EL, Ryu C. Mitochondrial DNA Sensing Pathogen Recognition Receptors in Systemic Sclerosis Associated Interstitial Lung Disease: A Review. CURRENT TREATMENT OPTIONS IN RHEUMATOLOGY 2023; 9:204-220. [PMID: 38230363 PMCID: PMC10791121 DOI: 10.1007/s40674-023-00211-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2023] [Indexed: 01/18/2024]
Abstract
Purpose of the review Systemic sclerosis (SSc) is a condition of dermal and visceral scar formation characterized by immune dysregulation and inflammatory fibrosis. Approximately 90% of SSc patients develop interstitial lung disease (ILD), and it is the leading cause of morbidity and mortality. Further understanding of immune-mediated fibroproliferative mechanisms has the potential to catalyze novel treatment approaches in this difficult to treat disease. Recent findings Recent advances have demonstrated the critical role of aberrant innate immune activation mediated by mitochondrial DNA (mtDNA) through interactions with toll-like receptor 9 (TLR9) and cytosolic cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS). Summary In this review, we will discuss how the nature of the mtDNA, whether oxidized or mutated, and its mechanism of release, either intracellularly or extracellularly, can amplify fibrogenesis by activating TLR9 and cGAS, and the novel insights gained by interrogating these signaling pathways. Because the scope of this review is intended to generate hypotheses for future research, we conclude our discussion with several important unanswered questions.
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Affiliation(s)
- Alexander Ghincea
- Yale School of Medicine, Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine
| | - Samuel Woo
- Yale School of Medicine, Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine
| | - Yu Sheeline
- Yale School of Medicine, Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine
| | - Taylor Pivarnik
- Yale School of Medicine, Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine
| | - Vitoria Fiorini
- Yale School of Medicine, Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine
| | - Erica L. Herzog
- Yale School of Medicine, Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine
- Department of Experimental Pathology, Section of Pulmonary, Critical Care, and Sleep Medicine
| | - Changwan Ryu
- Yale School of Medicine, Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine
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Roeser A, Sese L, Chassagnon G, Chaigne B, Dunogue B, Tran Ba S, Jebri S, Brillet PY, Revel MP, Aubourg F, Dhote R, Caux F, Annesi-Maesano I, Mouthon L, Nunes H, Uzunhan Y. The association between air pollution and the severity at diagnosis and progression of systemic sclerosis-associated interstitial lung disease: results from the retrospective ScleroPol study. Respir Res 2023; 24:151. [PMID: 37291562 DOI: 10.1186/s12931-023-02463-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/26/2023] [Indexed: 06/10/2023] Open
Abstract
OBJECTIVE To investigate the association of air pollution exposure with the severity of interstitial lung disease (ILD) at diagnosis and ILD progression among patients with systemic sclerosis (SSc)-associated ILD. METHODS We conducted a retrospective two-center study of patients with SSc-associated ILD diagnosed between 2006 and 2019. Exposure to the air pollutants particulate matter of up to 10 and 2.5 µm in diameter (PM10, PM2.5), nitrogen dioxide (NO2), and ozone (O3) was assessed at the geolocalization coordinates of the patients' residential address. Logistic regression models were used to evaluate the association between air pollution and severity at diagnosis according to the Goh staging algorithm, and progression at 12 and 24 months. RESULTS We included 181 patients, 80% of whom were women; 44% had diffuse cutaneous scleroderma, and 56% had anti-topoisomerase I antibodies. ILD was extensive, according to the Goh staging algorithm, in 29% of patients. O3 exposure was associated with the presence of extensive ILD at diagnosis (adjusted OR: 1.12, 95% CI 1.05-1.21; p value = 0.002). At 12 and 24 months, progression was noted in 27/105 (26%) and 48/113 (43%) patients, respectively. O3 exposure was associated with progression at 24 months (adjusted OR: 1.10, 95% CI 1.02-1.19; p value = 0.02). We found no association between exposure to other air pollutants and severity at diagnosis and progression. CONCLUSION Our findings suggest that high levels of O3 exposure are associated with more severe SSc-associated ILD at diagnosis, and progression at 24 months.
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Affiliation(s)
- Anaïs Roeser
- Department of Pulmonology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Bobigny, France
| | - Lucile Sese
- Department of Pulmonology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Bobigny, France
- INSERM UMR1272 Hypoxie et poumon, Paris 13 - Université Paris Nord, Bobigny, France
| | - Guillaume Chassagnon
- Department of Radiology A, Assistance Publique-Hôpitaux de Paris (APHP), Cochin Hospital, Paris, France
| | - Benjamin Chaigne
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris (APHP), Cochin Hospital, Paris, France
| | - Bertrand Dunogue
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris (APHP), Cochin Hospital, Paris, France
| | - Stéphane Tran Ba
- Department of Radiology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Bobigny, France
| | - Salma Jebri
- Department of Radiology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Bobigny, France
| | - Pierre-Yves Brillet
- Department of Radiology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Bobigny, France
| | - Marie Pierre Revel
- Department of Radiology A, Assistance Publique-Hôpitaux de Paris (APHP), Cochin Hospital, Paris, France
| | - Frédérique Aubourg
- Department of Physiology, Assistance Publique-Hôpitaux de Paris (APHP), Cochin Hospital, Paris, France
| | - Robin Dhote
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Paris, France
| | - Frédéric Caux
- Department of Dermatology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Paris, France
| | - Isabella Annesi-Maesano
- INSERM, Department of Allergic and Respiratory Disease, Montpellier University Hospital, Institute Desbrest of Epidemiology and Public Health, University of Montpellier, Montpellier, France
| | - Luc Mouthon
- Department of Internal Medicine, Assistance Publique-Hôpitaux de Paris (APHP), Cochin Hospital, Paris, France
| | - Hilario Nunes
- Department of Pulmonology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Bobigny, France
- INSERM UMR1272 Hypoxie et poumon, Paris 13 - Université Paris Nord, Bobigny, France
| | - Yurdagül Uzunhan
- Department of Pulmonology, Assistance Publique-Hôpitaux de Paris (APHP), Avicenne Hospital, Bobigny, France.
- INSERM UMR1272 Hypoxie et poumon, Paris 13 - Université Paris Nord, Bobigny, France.
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Ibáñez-Cabellos JS, Pallardó FV, García-Giménez JL, Seco-Cervera M. Oxidative Stress and Epigenetics: miRNA Involvement in Rare Autoimmune Diseases. Antioxidants (Basel) 2023; 12:antiox12040800. [PMID: 37107175 PMCID: PMC10135388 DOI: 10.3390/antiox12040800] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
Autoimmune diseases (ADs) such as Sjögren’s syndrome, Kawasaki disease, and systemic sclerosis are characterized by chronic inflammation, oxidative stress, and autoantibodies, which cause joint tissue damage, vascular injury, fibrosis, and debilitation. Epigenetics participate in immune cell proliferation and differentiation, which regulates the development and function of the immune system, and ultimately interacts with other tissues. Indeed, overlapping of certain clinical features between ADs indicate that numerous immunologic-related mechanisms may directly participate in the onset and progression of these diseases. Despite the increasing number of studies that have attempted to elucidate the relationship between miRNAs and oxidative stress, autoimmune disorders and oxidative stress, and inflammation and miRNAs, an overall picture of the complex regulation of these three actors in the pathogenesis of ADs has yet to be formed. This review aims to shed light from a critical perspective on the key AD-related mechanisms by explaining the intricate regulatory ROS/miRNA/inflammation axis and the phenotypic features of these rare autoimmune diseases. The inflamma-miRs miR-155 and miR-146, and the redox-sensitive miR miR-223 have relevant roles in the inflammatory response and antioxidant system regulation of these diseases. ADs are characterized by clinical heterogeneity, which impedes early diagnosis and effective personalized treatment. Redox-sensitive miRNAs and inflamma-miRs can help improve personalized medicine in these complex and heterogeneous diseases.
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Affiliation(s)
| | - Federico V. Pallardó
- U733, Centre for Biomedical Network Research on Rare Diseases (CIBERER-ISCIII), 28029 Madrid, Spain
- Mixed Unit for Rare Diseases INCLIVA-CIPF, INCLIVA Health Research Institute, 46010 Valencia, Spain
- Department Physiology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain
- Correspondence: (F.V.P.); (J.L.G.-G.); (M.S.-C.); Tel.: +34-963-864-646 (F.V.P.)
| | - José Luis García-Giménez
- U733, Centre for Biomedical Network Research on Rare Diseases (CIBERER-ISCIII), 28029 Madrid, Spain
- Mixed Unit for Rare Diseases INCLIVA-CIPF, INCLIVA Health Research Institute, 46010 Valencia, Spain
- Department Physiology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain
- Correspondence: (F.V.P.); (J.L.G.-G.); (M.S.-C.); Tel.: +34-963-864-646 (F.V.P.)
| | - Marta Seco-Cervera
- Hospital Dr. Peset, Fundación para la Investigación Sanitaria y Biomédica de la Comunitat Valenciana, FISABIO, 46010 Valencia, Spain
- Correspondence: (F.V.P.); (J.L.G.-G.); (M.S.-C.); Tel.: +34-963-864-646 (F.V.P.)
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6
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Sredojevic SI, Dolijanovic SP, Dozic I, Pficer JK, Aleksic Z, Nikolic-Jakoba NS. Salivary Antioxidant Profile in Patients with Systemic Sclerosis and Periodontitis. Mediators Inflamm 2023; 2023:7886272. [PMID: 37138665 PMCID: PMC10151151 DOI: 10.1155/2023/7886272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/26/2022] [Accepted: 11/24/2022] [Indexed: 05/05/2023] Open
Abstract
Objective The aim of the present study was to compare periodontal status and antioxidant profile in unstimulated saliva of systemic sclerosis (SSc) patients with periodontitis and systemically healthy periodontitis patients. Design Twenty patients with established diagnoses of systemic sclerosis and periodontitis (SSc group) and 20 systemically healthy individuals with periodontitis (P group) were enrolled in the study. Clinical periodontal parameters (clinical attachment level (CAL), gingival recession (GR), periodontal probing depth (PPD), and gingival index (GI)) and concentration of uric acid (UA), superoxide dismutase (SOD), and glutathione peroxidase (GPX) in unstimulated saliva samples were assessed. Results There were significantly higher mean values of CAL (4.8 ± 0.21 mm versus 3.18 ± 0.17 mm; p ≤ 0.001) and GR (1.66 ± 0.90 mm versus 0.46 ± 0.54 mm; p ≤ 0.001) in the SSc group when compared to the P group. Significantly higher level of GPX (p ≤ 0.001) and SOD (p ≤ 0.001) in unstimulated saliva was detected in the SSc group in comparison with the P group. The specific activity of UA did not significantly differ between the two groups (p = 0.083). Conclusion The results may indicate higher periodontal destruction and antioxidant perturbations in unstimulated saliva of SSc patients with periodontitis compared to systemically healthy periodontitis patients.
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Affiliation(s)
- Stefan I. Sredojevic
- Department of Periodontology, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
| | | | - Ivan Dozic
- General and Oral Biochemistry, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
| | - Jovana Kuzmanovic Pficer
- Biomedical Statistics and Informatics, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
| | - Zoran Aleksic
- Department of Periodontology, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
| | - Natasa S. Nikolic-Jakoba
- Department of Periodontology, School of Dental Medicine, University of Belgrade, Dr Subotica 4, Belgrade, Serbia
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Muecklich S, Shehzad K, Tiemann J, Li L, Leson S, Nelson PJ, Jennemann R, Klein M, Becker C, Sandhoff R, Steinbrink K, Raker VK. DKK3 Promotes Oxidative Stress‒Induced Fibroblast Activity. J Invest Dermatol 2022; 143:1088-1090.e2. [PMID: 36539030 DOI: 10.1016/j.jid.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Sabrina Muecklich
- Department of Dermatology, University Medical Center Mainz, Mainz, Germany
| | - Khuram Shehzad
- Medical Clinic IV, Clinical Biochemistry Group, Nephrology Center, Ludwig Maximilian University, Munich, Germany
| | - Jessica Tiemann
- Department of Dermatology, University Hospital Muenster, Muenster, Germany
| | - Li Li
- Division of Molecular Radio-Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sonja Leson
- Department of Dermatology, University Hospital Muenster, Muenster, Germany
| | - Peter J Nelson
- Medical Clinic IV, Clinical Biochemistry Group, Nephrology Center, Ludwig Maximilian University, Munich, Germany
| | - Richard Jennemann
- Research Group Lipid Pathobiochemistry, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Matthias Klein
- Institute for Immunology, University Medical Center Mainz, Mainz, Germany
| | - Christian Becker
- Department of Dermatology, University Hospital Muenster, Muenster, Germany; Cells in Motion Interfaculty Center, University of Muenster, Muenster, Germany
| | - Roger Sandhoff
- Division of Molecular Radio-Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Kerstin Steinbrink
- Department of Dermatology, University Hospital Muenster, Muenster, Germany; Cells in Motion Interfaculty Center, University of Muenster, Muenster, Germany
| | - Verena K Raker
- Department of Dermatology, University Hospital Muenster, Muenster, Germany.
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Heim X, Bermudez J, Joshkon A, Kaspi E, Bachelier R, Nollet M, Vélier M, Dou L, Brodovitch A, Foucault-Bertaud A, Leroyer AS, Benyamine A, Daumas A, Granel B, Sabatier F, Dignat-George F, Blot-Chabaud M, Bardin N. CD146 at the Interface between Oxidative Stress and the Wnt Signaling Pathway in Systemic Sclerosis. J Invest Dermatol 2022; 142:3200-3210.e5. [PMID: 35690141 DOI: 10.1016/j.jid.2022.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 03/01/2022] [Accepted: 03/12/2022] [Indexed: 01/05/2023]
Abstract
CD146 involvement was recently described in skin fibrosis of systemic sclerosis through its regulation of the Wnt pathway. Because the interaction between Wnt and ROS signaling plays a major role in fibrosis, we hypothesized that in systemic sclerosis, CD146 may regulate Wnt/ROS crosstalk. Using a transcriptomic and western blot analysis performed on CD146 wild-type or knockout mouse embryonic fibroblasts, we showed a procanonical Wnt hallmark in the absence of CD146 that is reversed when CD146 expression is restored. We found an elevated ROS content in knockout cells and an increase in DNA oxidative damage in the skin sections of knockout mice compared with those of wild-type mice. We also showed that ROS increased CD146 and its noncanonical Wnt ligand, WNT5A, only in wild-type cells. In humans, fibroblasts from patients with systemic sclerosis presented higher ROS content and expressed CD146, whereas control fibroblasts did not. Moreover, CD146 and its ligand were upregulated by ROS in both human fibroblasts. The increase in bleomycin-induced WNT5A expression was abrogated when CD146 was silenced. We showed an interplay between Wnt and ROS signaling in systemic sclerosis, regulated by CD146, which promotes the noncanonical Wnt pathway and prevents ROS signaling, opening the way for innovative therapeutic strategies.
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Affiliation(s)
- Xavier Heim
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Service d'immunologie, Biogénopôle, Hôpital de la Timone, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France.
| | | | - Ahmad Joshkon
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
| | - Elise Kaspi
- Aix Marseille University, APHM, INSERM, MMG, Hôpital la Timone, Service de Biologie Cellulaire, Marseille, France
| | | | - Marie Nollet
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
| | - Mélanie Vélier
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Hematology and Vascular Biology Department, Hopital de la Conception, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
| | - Laetitia Dou
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
| | - Alexandre Brodovitch
- Service d'immunologie, Biogénopôle, Hôpital de la Timone, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
| | | | | | - Audrey Benyamine
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Internal Medicine Department, Hopital Nord, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
| | - Aurélie Daumas
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Internal Medicine, Geriatric and Therapeutic Department, Hopital de la Timone, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
| | - Brigitte Granel
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Internal Medicine Department, Hopital Nord, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
| | - Florence Sabatier
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Cell Therapy Laboratory, INSERM CIC BT 1409, Hôpital de la Conception, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
| | - Françoise Dignat-George
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Hematology and Vascular Biology Department, Hopital de la Conception, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
| | | | - Nathalie Bardin
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Service d'immunologie, Biogénopôle, Hôpital de la Timone, Assistance Publique des Hôpitaux de Marseille (AP-HM), Marseille, France
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9
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Melatonin ameliorates bleomycin-induced pulmonary fibrosis via activating NRF2 and inhibiting galectin-3 expression. Acta Pharmacol Sin 2022; 44:1029-1037. [PMID: 36333557 PMCID: PMC9638373 DOI: 10.1038/s41401-022-01018-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
Pulmonary fibrosis (PF) is a chronic interstitial lung disease with no effective therapies. Galectin-3 (Gal-3), a marker of oxidative stress, plays a key role in the pathogenesis of PF. Fibroblast-myofibroblast differentiation (FMD) is an important source of fibrotic cells in PF. Previous studies showed that melatonin (MT) exerted anti-fibrotic effect in many diseases including PF through its antioxidant activity. In the present study we investigated the relationships among Gal-3, NRF2, ROS in FMD and their regulation by MT. We established an in vitro model of FMD in TGF-β1-treated human fetal lung fibroblast1 (HFL1) cells and a PF mouse model via bleomycin (BLM) intratracheal instillation. We found that Gal-3 expression was significantly increased both in vitro and in vivo. Knockdown of Gal-3 in HFL1 cells markedly attenuated TGF-β1-induced FMD process and ROS accumulation. In TGF-β1-treated HFL1 cells, pretreatment with NRF2-specific inhibitor ML385 (5 μM) significantly increased the levels of Gal-3, α-SMA and ROS, suggesting that the expression of Gal-3 was regulated by NRF2. Treatment with NRF2-activator MT (250 μM) blocked α-SMA and ROS accumulation accompanied by reduced Gal-3 expression. In BLM-induced PF model, administration of MT (5 mg·kg−1·d−1, ip for 14 or 28 days) significantly attenuated the progression of lung fibrosis through up-regulating NRF2 and down-regulating Gal-3 expression in lung tissues. These results suggest that Gal-3 regulates TGF-β1-induced pro-fibrogenic responses and ROS production in FMD, and MT activates NRF2 to block FMD process by down-regulating Gal-3 expression. This study provides a useful clue for a clinical strategy to prevent PF. Graphic abstract of the mechanisms. MT attenuated BLM-induced PF via activating NRF2 and inhibiting Gal-3 expression. ![]()
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Suzuki T, Kropski JA, Chen J, Carrier EJ, Chen X, Sherrill TP, Winters NI, Camarata JE, Polosukhin VV, Han W, Rathinasabapathy A, Gutor S, Gulleman P, Sabusap C, Banovich NE, Tanjore H, Freeman ML, Tada Y, Young LR, Gokey JJ, Blackwell TS, West JD. Thromboxane-Prostanoid Receptor Signaling Drives Persistent Fibroblast Activation in Pulmonary Fibrosis. Am J Respir Crit Care Med 2022; 206:596-607. [PMID: 35728047 PMCID: PMC9716913 DOI: 10.1164/rccm.202106-1503oc] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 06/28/2022] [Indexed: 11/16/2022] Open
Abstract
Rationale: Although persistent fibroblast activation is a hallmark of idiopathic pulmonary fibrosis (IPF), mechanisms regulating persistent fibroblast activation in the lungs have not been fully elucidated. Objectives: On the basis of our observation that lung fibroblasts express TBXA2R (thromboxane-prostanoid receptor) during fibrosis, we investigated the role of TBXA2R signaling in fibrotic remodeling. Methods: We identified TBXA2R expression in lungs of patients with IPF and mice and studied primary mouse and human lung fibroblasts to determine the impact of TBXA2R signaling on fibroblast activation. We used TBXA2R-deficient mice and small-molecule inhibitors to investigate TBXA2R signaling in preclinical lung fibrosis models. Measurements and Main Results: TBXA2R expression was upregulated in fibroblasts in the lungs of patients with IPF and in mouse lungs during experimental lung fibrosis. Genetic deletion of TBXA2R, but not inhibition of thromboxane synthase, protected mice from bleomycin-induced lung fibrosis, thereby suggesting that an alternative ligand activates profibrotic TBXA2R signaling. In contrast to thromboxane, F2-isoprostanes, which are nonenzymatic products of arachidonic acid induced by reactive oxygen species, were persistently elevated during fibrosis. F2-isoprostanes induced TBXA2R signaling in fibroblasts and mediated a myofibroblast activation profile due, at least in part, to potentiation of TGF-β (transforming growth factor-β) signaling. In vivo treatment with the TBXA2R antagonist ifetroban reduced profibrotic signaling in the lungs, protected mice from lung fibrosis in three preclinical models (bleomycin, Hermansky-Pudlak mice, and radiation-induced fibrosis), and markedly enhanced fibrotic resolution after bleomycin treatment. Conclusions: TBXA2R links oxidative stress to fibroblast activation during lung fibrosis. TBXA2R antagonists could have utility in treating pulmonary fibrosis.
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Affiliation(s)
- Toshio Suzuki
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Department of Medical Oncology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Jonathan A. Kropski
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
- Department of Medicine, Department of Veterans Affairs Medical Center, Nashville, Tennessee
| | - Jingyuan Chen
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Erica J. Carrier
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Xinping Chen
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Taylor P. Sherrill
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Nichelle I. Winters
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Jane E. Camarata
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Vasiliy V. Polosukhin
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Wei Han
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | | | - Sergey Gutor
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Peter Gulleman
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Carleen Sabusap
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | | | - Harikrishna Tanjore
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Michael L. Freeman
- Department of Radiation Oncology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Yuji Tada
- Department of Pulmonary Medicine, School of Medicine, International University of Health and Welfare, Chiba, Japan; and
| | - Lisa R. Young
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Division of Pulmonary Medicine, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Jason J. Gokey
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Timothy S. Blackwell
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
- Department of Medicine, Department of Veterans Affairs Medical Center, Nashville, Tennessee
| | - James D. West
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
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11
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Zhang R, Kumar GS, Hansen U, Zoccheddu M, Sacchetti C, Holmes ZJ, Lee MC, Beckmann D, Wen Y, Mikulski Z, Yang S, Santelli E, Page R, Boin F, Peti W, Bottini N. Oxidative stress promotes fibrosis in systemic sclerosis through stabilization of a kinase-phosphatase complex. JCI Insight 2022; 7:155761. [PMID: 35451370 PMCID: PMC9089796 DOI: 10.1172/jci.insight.155761] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/02/2022] [Indexed: 11/23/2022] Open
Abstract
Systemic sclerosis (SSc) is a fibrotic autoimmune disease characterized by pathogenic activation of fibroblasts enhanced by local oxidative stress. The tyrosine phosphatase PTP4A1 was identified as a critical promoter of TGF-β signaling in SSc. Oxidative stress is known to functionally inactivate tyrosine phosphatases. Here, we assessed whether oxidation of PTP4A1 modulates its profibrotic action and found that PTP4A1 forms a complex with the kinase SRC in scleroderma fibroblasts, but surprisingly, oxidative stress enhanced rather than reduced PTP4A1’s association with SRC and its profibrotic action. Through structural assessment of the oxo-PTP4A1-SRC complex, we unraveled an unexpected mechanism whereby oxidation of a tyrosine phosphatase promotes its function through modification of its protein complex. Considering the importance of oxidative stress in the pathogenesis of SSc and fibrosis, our findings suggest routes for leveraging PTP4A1 oxidation as a potential strategy for developing antifibrotic agents.
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Affiliation(s)
- Ruiyuan Zhang
- Department of Medicine and.,Department of Biological Sciences, University of California, San Diego, La Jolla, California, USA
| | - Ganesan Senthil Kumar
- Department of Molecular Biology & Biophysics, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Uwe Hansen
- Institute for Musculoskeletal Medicine, University of Munster, Munster, Germany
| | | | | | | | | | | | | | - Zbigniew Mikulski
- Microscopy and Histology Core Facility, La Jolla Institute for Immunology, La Jolla, California, USA
| | | | | | - Rebecca Page
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Francesco Boin
- Division of Rheumatology, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Wolfgang Peti
- Department of Molecular Biology & Biophysics, University of Connecticut Health Center, Farmington, Connecticut, USA
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12
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Lung function improves after delayed treatment with CNP-miR146a following acute lung injury. NANOMEDICINE: NANOTECHNOLOGY, BIOLOGY AND MEDICINE 2022; 40:102498. [PMID: 34838994 PMCID: PMC8616767 DOI: 10.1016/j.nano.2021.102498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/09/2021] [Accepted: 11/10/2021] [Indexed: 11/20/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is a highly morbid pulmonary disease characterized by hypoxic respiratory failure. Its pathogenesis is characterized by unrestrained oxidative stress and inflammation, with long-term sequelae of pulmonary fibrosis and diminished lung function. Unfortunately, prior therapeutic ARDS trials have failed and therapy is limited to supportive measures. Free radical scavenging cerium oxide nanoparticles (CNP) conjugated to the anti-inflammatory microRNA-146a (miR146a), termed CNP-miR146a, have been shown to prevent acute lung injury in a pre-clinical model. In this study, we evaluated the potential of delayed treatment with CNP-miR146a at three or seven days after injury to rescue the lung from acute injury. We found that intratracheal CNP-miR146a administered three days after injury lowers pulmonary leukocyte infiltration, reduce inflammation and oxidative stress, lower pro-fibrotic gene expression and collagen deposition in the lung, and ultimately improve pulmonary function.
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13
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Shen CY, Lu CH, Wu CH, Li KJ, Kuo YM, Hsieh SC, Yu CL. Molecular Basis of Accelerated Aging with Immune Dysfunction-Mediated Inflammation (Inflamm-Aging) in Patients with Systemic Sclerosis. Cells 2021; 10:cells10123402. [PMID: 34943909 PMCID: PMC8699891 DOI: 10.3390/cells10123402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/17/2021] [Accepted: 11/30/2021] [Indexed: 12/17/2022] Open
Abstract
Systemic sclerosis (SSc) is a chronic connective tissue disorder characterized by immune dysregulation, chronic inflammation, vascular endothelial cell dysfunction, and progressive tissue fibrosis of the skin and internal organs. Moreover, increased cancer incidence and accelerated aging are also found. The increased cancer incidence is believed to be a result of chromosome instability. Accelerated cellular senescence has been confirmed by the shortening of telomere length due to increased DNA breakage, abnormal DNA repair response, and telomerase deficiency mediated by enhanced oxidative/nitrative stresses. The immune dysfunctions of SSc patients are manifested by excessive production of proinflammatory cytokines IL-1, IL-6, IL-17, IFN-α, and TNF-α, which can elicit potent tissue inflammation followed by tissue fibrosis. Furthermore, a number of autoantibodies including anti-topoisomerase 1 (anti-TOPO-1), anti-centromere (ACA or anti-CENP-B), anti-RNA polymerase enzyme (anti-RNAP III), anti-ribonuclear proteins (anti-U1, U2, and U11/U12 RNP), anti-nucleolar antigens (anti-Th/T0, anti-NOR90, anti-Ku, anti-RuvBL1/2, and anti-PM/Scl), and anti-telomere-associated proteins were also found. Based on these data, inflamm-aging caused by immune dysfunction-mediated inflammation exists in patients with SSc. Hence, increased cellular senescence is elicited by the interactions among excessive oxidative stress, pro-inflammatory cytokines, and autoantibodies. In the present review, we will discuss in detail the molecular basis of chromosome instability, increased oxidative stress, and functional adaptation by deranged immunome, which are related to inflamm-aging in patients with SSc.
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Affiliation(s)
- Chieh-Yu Shen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-H.W.); (K.-J.L.); (Y.-M.K.)
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 10002, Taiwan
| | - Cheng-Hsun Lu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-H.W.); (K.-J.L.); (Y.-M.K.)
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 10002, Taiwan
| | - Cheng-Han Wu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-H.W.); (K.-J.L.); (Y.-M.K.)
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 10002, Taiwan
| | - Ko-Jen Li
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-H.W.); (K.-J.L.); (Y.-M.K.)
| | - Yu-Min Kuo
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-H.W.); (K.-J.L.); (Y.-M.K.)
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 10002, Taiwan
| | - Song-Chou Hsieh
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-H.W.); (K.-J.L.); (Y.-M.K.)
- Correspondence: (S.-C.H.); (C.-L.Y.); Tel.: +886-2-23123456 (S.-C.H. & C.-L.Y.)
| | - Chia-Li Yu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan; (C.-Y.S.); (C.-H.L.); (C.-H.W.); (K.-J.L.); (Y.-M.K.)
- Correspondence: (S.-C.H.); (C.-L.Y.); Tel.: +886-2-23123456 (S.-C.H. & C.-L.Y.)
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14
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Zhou X, Trinh-Minh T, Tran-Manh C, Gießl A, Bergmann C, Györfi AH, Schett G, Distler JHW. Impaired TFAM expression promotes mitochondrial damage to drive fibroblast activation and fibrosis in systemic sclerosis. Arthritis Rheumatol 2021; 74:871-881. [PMID: 34807516 DOI: 10.1002/art.42033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 10/12/2021] [Accepted: 11/18/2021] [Indexed: 11/07/2022]
Abstract
OBJECTIVES The transcription factor TFAM is controlling the transcription of core proteins required for mitochondrial homeostasis. The aim of the current study was to investigate changes in TFAM expression in systemic sclerosis (SSc), to analyze mitochondrial function and to evaluate the consequences for fibroblast activation. METHODS The expression of TFAM was analyzed by immunofluorescence and Western blot. The effects of TFAM knockout were investigated in cultured fibroblasts and in bleomycin-induced skin and lung fibrosis and in TβRIact -induced skin fibrosis. RESULTS The expression of TFAM was downregulated in fibroblasts in SSc skin and in cultured SSc fibroblasts. The downregulation of TFAM was associated with decreased mitochondrial number and accumulation of damaged mitochondria with release of mtDNA, accumulation of deletions in mtDNA, metabolic alterations with impaired OXPHOS and release of the mitokine GDF15. Chronic, but not acute, exposure of normal fibroblasts to TGFβ mimicked the finding in SSc fibroblasts with downregulation of TFAM and accumulation of mitochondrial damage. Downregulation of TFAM promotes fibroblast activation with upregulation of fibrosis-relevant GO-terms in RNASeq, partially in a ROS-dependent manner. Mice with fibroblast-specific knockout of TFAM are prone to fibrotic tissue remodeling with fibrotic responses even to NaCl instillation and enhanced sensitivity to bleomycin injection and TβRIact-overexpression. TFAM knockout fosters SMAD3 signaling to promote fibroblast activation. CONCLUSIONS Alterations in the key mitochondrial transcription factor TFAM in response to prolonged activation of TGFβ and associated mitochondrial damage induce transcriptional programs that promote fibroblast-to-myofibroblast transition and drive tissue fibrosis.
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Affiliation(s)
- Xiang Zhou
- Department of Internal Medicine 3 - Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany.,Deutsches Zentrum für Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany
| | - Thuong Trinh-Minh
- Department of Internal Medicine 3 - Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany.,Deutsches Zentrum für Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany
| | - Cuong Tran-Manh
- Department of Internal Medicine 3 - Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany.,Deutsches Zentrum für Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany
| | - Andreas Gießl
- Department of Ophthalmology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Christina Bergmann
- Department of Internal Medicine 3 - Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany.,Deutsches Zentrum für Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany
| | - Andrea-Hermina Györfi
- Department of Internal Medicine 3 - Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany.,Deutsches Zentrum für Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3 - Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany.,Deutsches Zentrum für Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany
| | - Jörg H W Distler
- Department of Internal Medicine 3 - Rheumatology and Clinical Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany.,Deutsches Zentrum für Immuntherapie (DZI), FAU Erlangen-Nürnberg and University Hospital Erlangen, Erlangen, Germany
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15
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Thoreau B, Chaigne B, Renaud A, Mouthon L. Pathophysiology of systemic sclerosis. Presse Med 2021; 50:104087. [PMID: 34718115 DOI: 10.1016/j.lpm.2021.104087] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 10/20/2022] Open
Abstract
Systemic sclerosis (SSc) is a rare connective tissue disease characterized by vascular remodeling, fibroblast activation and extra-cellular matrix production in excess and autoimmunity. Environmental factors including mainly silica and solvents have been assumed to contribute to the development of SSc, together with genetic factors including gene variants implicated in innate immunity such as IRF5 and STAT4, and epigenetic factors including histone post-translational modifications, DNA hypomethylation, and microRNAs or long- non coding RNAs system were reported to participate in immune activation and fibrosis processes in patients with SSc. A number of animal models of SSc have been set up over the years, including genetic and induced SSc models. These models, together with data obtained from human SSc patients, contributed to better understand the mechanisms contributing to vasculopathy and fibrosis. Alongside the pathophysiological process of SSc, several cellular and molecular actors are involved, such as dysregulations in the innate and adaptive immune cells, of the fibroblast, the implication of pro-inflammatory and pro-fibrosing signaling pathways such as the Wnt, TGF-β pathways or other cytokines, with a strong imprint of oxidative stress. The whole lead to the overactivity of the fibroblast with genetic dysregulation, apoptosis defect, hyperproduction of elements of extracellular matrix, and finally the phenomena of vasculopathy and fibrosis. These advances contribute to open new therapeutic areas through the design of biologics and small molecules.
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Affiliation(s)
- Benjamin Thoreau
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Benjamin Chaigne
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Arthur Renaud
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France
| | - Luc Mouthon
- Institut Cochin, Inserm U1016, CNRS UMR 8104,Université de Paris, Paris, France; Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares d'Ile de France, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.
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16
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Oxidative Stress Induced by Reactive Oxygen Species (ROS) and NADPH Oxidase 4 (NOX4) in the Pathogenesis of the Fibrotic Process in Systemic Sclerosis: A Promising Therapeutic Target. J Clin Med 2021; 10:jcm10204791. [PMID: 34682914 PMCID: PMC8539594 DOI: 10.3390/jcm10204791] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 02/07/2023] Open
Abstract
Numerous clinical and research investigations conducted during the last two decades have implicated excessive oxidative stress caused by high levels of reactive oxygen species (ROS) in the development of the severe and frequently progressive fibrotic process in Systemic Sclerosis (SSc). The role of excessive oxidative stress in SSc pathogenesis has been supported by the demonstration of increased levels of numerous biomarkers, indicative of cellular and molecular oxidative damage in serum, plasma, and other biological fluids from SSc patients, and by the demonstration of elevated production of ROS by various cell types involved in the SSc fibrotic process. However, the precise mechanisms mediating oxidative stress development in SSc and its pathogenetic effects have not been fully elucidated. The participation of the NADPH oxidase NOX4, has been suggested and experimentally supported by the demonstration that SSc dermal fibroblasts display constitutively increased NOX4 expression and that reduction or abrogation of NOX4 effects decreased ROS production and the expression of genes encoding fibrotic proteins. Furthermore, NOX4-stimulated ROS production may be involved in the development of certain endothelial and vascular abnormalities and may even participate in the generation of SSc-specific autoantibodies. Collectively, these observations suggest NOX4 as a novel therapeutic target for SSc.
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17
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Xian D, Guo M, Xu J, Yang Y, Zhao Y, Zhong J. Current evidence to support the therapeutic potential of flavonoids in oxidative stress-related dermatoses. Redox Rep 2021; 26:134-146. [PMID: 34355664 PMCID: PMC8354022 DOI: 10.1080/13510002.2021.1962094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Skin, as a crucial external defense organ, is more vulnerable to oxidative stress (OS) insult, reactive oxygen species (ROS)-mediated OS in particular. OS results from a redox imbalance caused by various extrinsic stimuli and occurs once the oxidants production overwhelming the antioxidants capacity, through mediating in DNA damage, lipid peroxidation (LPO), protein oxidation and a serial of signaling pathways activation/inactivation, thereby offering favorable conditions for the occurrence and development of numerous diseases especially some dermatoses, e.g. psoriasis, vitiligo, skin photodamage, skin cancer, systemic sclerosis (SSc), chloasma, atopic dermatitis (AD), pemphigus, etc. Targeting OS molecular mechanism, a variety of anti-OS agents emerge, in which flavonoids, natural plant extracts, stand out. OBJECTIVES To discuss the possible mechanisms of OS mediating in dermatoses and summarize the properties of flavonoids as well as their applications in OS-related skin disorders. METHODS Published papers on flavonoids and OS-related skin diseases were collected and reviewed via database searching on PubMed, MEDLINE and Embase, etc. RESULTS It has been confirmed that flavonoids, belonging to polyphenols, are a class of plant secondary metabolites widely distributed in various plants and possess diverse bioactivities especially their potent antioxidant capacity. Moreover, flavonoids benefit to suppress OS via eliminating free radicals and mediating the corresponding signals, further excellently working in the prevention and management of OS-related skin diseases. CONCLUSION Flavonoids have the potential therapeutic effects on oxidative stress-related dermatoses. However, more studies on specific mechanism as well as the dosage of flavonoids are needed in future.
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Affiliation(s)
- Dehai Xian
- Department of Anatomy, Southwest Medical University, Luzhou, People's Republic of China
| | - Menglu Guo
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Jixiang Xu
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Yang Yang
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Yangmeng Zhao
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Jianqiao Zhong
- Department of Dermatology, Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
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18
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Iloprost Attenuates Oxidative Stress-Dependent Activation of Collagen Synthesis Induced by Sera from Scleroderma Patients in Human Pulmonary Microvascular Endothelial Cells. Molecules 2021; 26:molecules26164729. [PMID: 34443317 PMCID: PMC8399120 DOI: 10.3390/molecules26164729] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 12/17/2022] Open
Abstract
Endothelial cell injury is an early event in systemic sclerosis (SSc) pathogenesis and several studies indicate oxidative stress as the trigger of SSc-associated vasculopathy. Here, we show that circulating factors present in sera of SSc patients increased reactive oxygen species (ROS) production and collagen synthesis in human pulmonary microvascular endothelial cells (HPMECs). In addition, the possibility that iloprost, a drug commonly used in SSc therapy, might modulate the above-mentioned biological phenomena has been also investigated. In this regard, as compared to sera of SSc patients, sera of iloprost-treated SSc patients failed to increased ROS levels and collagen synthesis in HPMEC, suggesting a potential antioxidant mechanism of this drug.
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19
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Bitar C, Chan MP. Connective Tissue Diseases in the Skin: Emerging Concepts and Updates on Molecular and Immune Drivers of Disease. Surg Pathol Clin 2021; 14:237-249. [PMID: 34023103 DOI: 10.1016/j.path.2021.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cutaneous manifestations are common across the spectrum of autoimmune diseases. Connective tissue diseases manifesting in the skin are often difficult to classify and require integration of clinical, histopathologic, and serologic findings. This review focuses on the current understanding of the molecular and immune drivers involved in the pathogenesis of cutaneous lupus erythematosus, dermatomyositis, scleroderma/systemic sclerosis, and mixed connective tissue disease. Recent research advances have led to the emergence of new ancillary tools and useful diagnostic clues of which dermatopathologists should be aware to improve diagnostic accuracy for these diseases.
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Affiliation(s)
- Carole Bitar
- Department of Pathology, University of Michigan, 2800 Plymouth Road, NCRC Building 35, Ann Arbor, MI 48109, USA
| | - May P Chan
- Department of Pathology, University of Michigan, 2800 Plymouth Road, NCRC Building 35, Ann Arbor, MI 48109, USA.
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20
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Baral H, Sekiguchi A, Uchiyama A, Nisaa Amalia S, Yamazaki S, Inoue Y, Yokoyama Y, Ogino S, Torii R, Hosoi M, Akai R, Iwawaki T, Ishikawa O, Motegi SI. Inhibition of skin fibrosis in systemic sclerosis by botulinum toxin B via the suppression of oxidative stress. J Dermatol 2021; 48:1052-1061. [PMID: 33840125 DOI: 10.1111/1346-8138.15888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/21/2021] [Accepted: 03/23/2021] [Indexed: 12/14/2022]
Abstract
Oxidative stress has been reported to play an important role in the pathogenesis of skin fibrosis in systemic sclerosis (SSc). We previously identified that botulinum toxin (BTX) injection suppresses pressure ulcer formation in a cutaneous ischemia-reperfusion injury mouse model by regulation of oxidative stress. However, the therapeutic possibility of BTX administration for preventing skin fibrosis in SSc is unclear. The objective of this study was to investigate the effect of BTX-B on skin fibrosis in a murine model of SSc and determine the underlying mechanism. We found that BTX-B injection significantly reduced dermal thickness and inflammatory cell infiltration in bleomycin-induced skin fibrosis lesion in mice. We also identified that the oxidative stress signal detected through bioluminescence in OKD48 mice after bleomycin injection in the skin was significantly decreased by BTX-B. Additionally, mRNA levels of oxidative stress associated factors (NOX2, HO-1, Trx2) were significantly decreased by BTX-B. Apoptotic cells in the lesional skin of bleomycin-treated mice were significantly reduced by BTX-B. Oxidant-induced intracellular accumulation of reactive oxygen species in SSc fibroblasts was also inhibited by BTX-B. In conclusion, BTX-B might improve bleomycin-induced skin fibrosis via the suppression of oxidative stress and inflammatory cells in the skin. BTX-B injection may have a therapeutic effect on skin fibrosis in SSc.
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Affiliation(s)
- Hritu Baral
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Akiko Sekiguchi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Akihiko Uchiyama
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Syahla Nisaa Amalia
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Sahori Yamazaki
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Yuta Inoue
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Yoko Yokoyama
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Sachiko Ogino
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Ryoko Torii
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Mari Hosoi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Ryoko Akai
- Division of Cell Medicine, Department of Life Science, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - Takao Iwawaki
- Division of Cell Medicine, Department of Life Science, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - Osamu Ishikawa
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Sei-Ichiro Motegi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
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21
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Chen W, Wang Q, Zhou B, Zhang L, Zhu H. Lipid Metabolism Profiles in Rheumatic Diseases. Front Pharmacol 2021; 12:643520. [PMID: 33897433 PMCID: PMC8064727 DOI: 10.3389/fphar.2021.643520] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/18/2021] [Indexed: 12/25/2022] Open
Abstract
Rheumatic diseases are a group of chronic autoimmune disorders that involve multiple organs or systems and have high mortality. The mechanisms of these diseases are still ill-defined, and targeted therapeutic strategies are still challenging for physicians. Recent research indicates that cell metabolism plays important roles in the pathogenesis of rheumatic diseases. In this review, we mainly focus on lipid metabolism profiles (dyslipidaemia, fatty acid metabolism) and mechanisms in rheumatic diseases and discuss potential clinical applications based on lipid metabolism profiles.
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Affiliation(s)
- Weilin Chen
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Provincial Clinical Research Center for Rheumatic and Immunologic Diseases, Xiangya Hospital, Changsha, China
| | - Qi Wang
- Department of Radiology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Bin Zhou
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lihua Zhang
- Department of Rheumatology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Honglin Zhu
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China.,Provincial Clinical Research Center for Rheumatic and Immunologic Diseases, Xiangya Hospital, Changsha, China
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22
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De Pieri A, Korman BD, Jüngel A, Wuertz-Kozak K. Engineering Advanced In Vitro Models of Systemic Sclerosis for Drug Discovery and Development. Adv Biol (Weinh) 2021; 5:e2000168. [PMID: 33852183 PMCID: PMC8717409 DOI: 10.1002/adbi.202000168] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 01/13/2021] [Accepted: 01/19/2021] [Indexed: 12/19/2022]
Abstract
Systemic sclerosis (SSc) is a complex multisystem disease with the highest case-specific mortality among all autoimmune rheumatic diseases, yet without any available curative therapy. Therefore, the development of novel therapeutic antifibrotic strategies that effectively decrease skin and organ fibrosis is needed. Existing animal models are cost-intensive, laborious and do not recapitulate the full spectrum of the disease and thus commonly fail to predict human efficacy. Advanced in vitro models, which closely mimic critical aspects of the pathology, have emerged as valuable platforms to investigate novel pharmaceutical therapies for the treatment of SSc. This review focuses on recent advancements in the development of SSc in vitro models, sheds light onto biological (e.g., growth factors, cytokines, coculture systems), biochemical (e.g., hypoxia, reactive oxygen species) and biophysical (e.g., stiffness, topography, dimensionality) cues that have been utilized for the in vitro recapitulation of the SSc microenvironment, and highlights future perspectives for effective drug discovery and validation.
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Affiliation(s)
- Andrea De Pieri
- Dr. A. De Pieri, Prof. K. Wuertz-Kozak, Department of Biomedical Engineering, Rochester Institute of Technology (RIT), 106 Lomb Memorial Rd., Rochester, NY, 14623, USA
| | - Benjamin D Korman
- Prof. B. D. Korman, Department of Medicine, Division of Allergy, Immunology and Rheumatology, University of Rochester Medical Center, Rochester, NY, 14623, USA
| | - Astrid Jüngel
- Prof. A. Jüngel, Center of Experimental Rheumatology, University Clinic of Rheumatology, Balgrist University Hospital, University Hospital Zurich, Zurich, 8008, Switzerland
- Prof. A. Jüngel, Department of Physical Medicine and Rheumatology, Balgrist University Hospital, University of Zurich, Zurich, 8008, Switzerland
| | - Karin Wuertz-Kozak
- Dr. A. De Pieri, Prof. K. Wuertz-Kozak, Department of Biomedical Engineering, Rochester Institute of Technology (RIT), 106 Lomb Memorial Rd., Rochester, NY, 14623, USA
- Prof. K. Wuertz-Kozak, Schön Clinic Munich Harlaching, Spine Center, Academic Teaching Hospital and Spine Research Institute of the Paracelsus Medical University Salzburg (Austria), Munich, 81547, Germany
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23
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Egea G, Jiménez-Altayó F, Campuzano V. Reactive Oxygen Species and Oxidative Stress in the Pathogenesis and Progression of Genetic Diseases of the Connective Tissue. Antioxidants (Basel) 2020; 9:antiox9101013. [PMID: 33086603 PMCID: PMC7603119 DOI: 10.3390/antiox9101013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 12/18/2022] Open
Abstract
Connective tissue is known to provide structural and functional “glue” properties to other tissues. It contains cellular and molecular components that are arranged in several dynamic organizations. Connective tissue is the focus of numerous genetic and nongenetic diseases. Genetic diseases of the connective tissue are minority or rare, but no less important than the nongenetic diseases. Here we review the impact of reactive oxygen species (ROS) and oxidative stress on the onset and/or progression of diseases that directly affect connective tissue and have a genetic origin. It is important to consider that ROS and oxidative stress are not synonymous, although they are often closely linked. In a normal range, ROS have a relevant physiological role, whose levels result from a fine balance between ROS producers and ROS scavenge enzymatic systems. However, pathology arises or worsens when such balance is lost, like when ROS production is abnormally and constantly high and/or when ROS scavenge (enzymatic) systems are impaired. These concepts apply to numerous diseases, and connective tissue is no exception. We have organized this review around the two basic structural molecular components of connective tissue: The ground substance and fibers (collagen and elastic fibers).
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Affiliation(s)
- Gustavo Egea
- Department of Biomedical Science, University of Barcelona School of Medicine and Health Sciences, 08036 Barcelona, Spain;
- Institut d’Investigacions Biomédiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain
- Institut de Nanociencies I Nanotecnologia (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Correspondence: ; Tel.: +34-934-021-909
| | - Francesc Jiménez-Altayó
- Departament of Pharmacology, Therapeutics, and Toxicology, Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain;
| | - Victoria Campuzano
- Department of Biomedical Science, University of Barcelona School of Medicine and Health Sciences, 08036 Barcelona, Spain;
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24
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Uzuncakmak TK, Koska MC, Ozkanli S, Kaya Kocdogan A, Oguztuzun S, Karadag AS, Akdeniz N, Wollina U. Comparison of the tissue expressions of glutathione S transferase isoenzymes among patients with morphea and healthy controls: A preliminary study. Dermatol Ther 2020; 33:e14363. [PMID: 33002252 DOI: 10.1111/dth.14363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/04/2020] [Accepted: 09/24/2020] [Indexed: 11/26/2022]
Abstract
Morphea is an inflammatory connective tissue disorder, which is characterized by sclerosis in skin and subcutaneous tissues with a chronic progress. The oxidative stress in pathogenesis of sclerosing diseases was proposed in several studies with conflicting results. To explore the tissue expressions of Glutathione S transferase (GST) isoenzymes in patients with morphea and compare these expressions with healthy controls. Twenty-two morphea patients and 20 sex and age matched healthy controls were enrolled in this study. Four millimeter punch biopsies were performed from the active sclerotic plaques of morphea patients. Tissue samples of control group were obtained from nonlesional normal skin biopsy specimens. The protein expressions of GST isoenzymes were analyzed immunohistochemically. Tissue expressions of GSTP1, GSTT1, and GSTA1 isoenzymes in morphea patients were found to be significantly higher than in control tissues. There was no significant difference in GSTM1 isoenzyme expression between the two groups. The increased tissue expressions of GSTA1, GSTP1, and GSTT1 isoenzymes in morphea may represent the activated GST enzymes in response to excessive free radical formation and may also support the hypothesis of increased oxidative stress in morphea etiopathogenesis.
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Affiliation(s)
- Tugba Kevser Uzuncakmak
- Department of Dermatology, Istanbul Medeniyet University, School of Medicine, Goztepe Training and Research Hospital, Istanbul, Turkey
| | - Mahmut Can Koska
- Department of Dermatology, Istanbul Medeniyet University, School of Medicine, Goztepe Training and Research Hospital, Istanbul, Turkey
| | - Seyma Ozkanli
- Department of Pathology, Istanbul Medeniyet University, School of Medicine, Goztepe Training and Research Hospital, Istanbul, Turkey
| | - Arzu Kaya Kocdogan
- Pathology Laboratory Techniques, Istanbul Gelisim University, Istanbul, Turkey
| | - Serpil Oguztuzun
- Department of Biology, Kırıkkale University, School of Medicine, Kırıkkale, Turkey
| | - Ayse Serap Karadag
- Department of Dermatology, Istanbul Medeniyet University, School of Medicine, Goztepe Training and Research Hospital, Istanbul, Turkey
| | - Necmettin Akdeniz
- Department of Dermatology, Istanbul Medeniyet University, School of Medicine, Goztepe Training and Research Hospital, Istanbul, Turkey
| | - Uwe Wollina
- Department of Dermatology and Allergology, Städtisches Klinikum Dresden, Academic Teaching Hospital of the Technical University, Dresden, Germany
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25
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Vlachogiannis NI, Pappa M, Ntouros PA, Nezos A, Mavragani CP, Souliotis VL, Sfikakis PP. Association Between DNA Damage Response, Fibrosis and Type I Interferon Signature in Systemic Sclerosis. Front Immunol 2020; 11:582401. [PMID: 33123169 PMCID: PMC7566292 DOI: 10.3389/fimmu.2020.582401] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 09/14/2020] [Indexed: 01/22/2023] Open
Abstract
Increased endogenous DNA damage and type I interferon pathway activation have been implicated in systemic sclerosis (SSc) pathogenesis. Because experimental evidence suggests an interplay between DNA damage response/repair (DDR/R) and immune response, we hypothesized that deregulated DDR/R is associated with a type I interferon signature and/or fibrosis extent in SSc. DNA damage levels, oxidative stress, induction of abasic sites and the efficiency of DNA double-strand break repair (DSB/R) and nucleotide excision repair (NER) were assessed in peripheral blood mononuclear cells (PBMCs) derived from 37 SSc patients and 55 healthy controls; expression of DDR/R-associated genes and type I interferon-induced genes was also quantified. Endogenous DNA damage was significantly higher in untreated diffuse or limited SSc (Olive tail moment; 14.7 ± 7.0 and 9.5 ± 4.1, respectively) as well as in patients under cytotoxic treatment (15.0 ± 5.4) but not in very early onset SSc (5.6 ± 1.2) compared with controls (4.9 ± 2.6). Moreover, patients with pulmonary fibrosis had significantly higher DNA damage levels than those without (12.6 ± 5.8 vs. 8.8 ± 4.8, respectively). SSc patients displayed increased oxidative stress and abasic sites, defective DSB/R but not NER capacity, downregulation of genes involved in DSB/R (MRE11A, PRKDC) and base excision repair (PARP1, XRCC1), and upregulation of apoptosis-related genes (BAX, BBC3). Individual levels of DNA damage in SSc PBMCs correlated significantly with the corresponding mRNA expression of type I interferon-induced genes (IFIT1, IFI44 and MX1, r=0.419-0.490) as well as with corresponding skin involvement extent by modified Rodnan skin score (r=0.481). In conclusion, defective DDR/R may exert a fuel-on-fire effect on type I interferon pathway activation and contribute to tissue fibrosis in SSc.
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Affiliation(s)
- Nikolaos I Vlachogiannis
- First Department of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens Medical School, Athens, Greece.,Joint Academic Rheumatology Program, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Maria Pappa
- First Department of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens Medical School, Athens, Greece.,Joint Academic Rheumatology Program, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Panagiotis A Ntouros
- First Department of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens Medical School, Athens, Greece.,Joint Academic Rheumatology Program, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Adrianos Nezos
- Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Clio P Mavragani
- Joint Academic Rheumatology Program, National and Kapodistrian University of Athens Medical School, Athens, Greece.,Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassilis L Souliotis
- First Department of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens Medical School, Athens, Greece.,Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece
| | - Petros P Sfikakis
- First Department of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens Medical School, Athens, Greece.,Joint Academic Rheumatology Program, National and Kapodistrian University of Athens Medical School, Athens, Greece
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26
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Giovannetti A, Straface E, Rosato E, Casciaro M, Pioggia G, Gangemi S. Role of Alarmins in the Pathogenesis of Systemic Sclerosis. Int J Mol Sci 2020; 21:ijms21144985. [PMID: 32679721 PMCID: PMC7404317 DOI: 10.3390/ijms21144985] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/10/2020] [Accepted: 07/14/2020] [Indexed: 12/22/2022] Open
Abstract
Systemic sclerosis (SSc) is a rare chronic autoimmune disease associated with significant morbidity and mortality. Two main subsets of SSc are recognized: (i) diffuse cutaneous SSc with rapidly progressive fibrosis of the skin, lungs, and other internal organs; and (ii) limited cutaneous SSc, which is dominated by vascular manifestations, with skin and organ fibrosis generally limited and slowly progressing. In spite of intense investigation, both etiology and pathogenesis of SSc are still unknown. Genetic and environmental factors, as well as abnormalities of immune functions, are strongly suggested for etiology, while microvascular abnormalities, immune system activation, and oxidative stress are suggested for the pathogenesis. Recently, it has been found that a multitude of mediators and cytokines are implicated in the fibrotic processes observed in SSc. Among these, a central role could be exerted by “alarmins”, endogenous and constitutively expressed proteins/peptides that function as an intercellular signal defense. This review describes, in a detailed manner, the role of alarmins in the pathogenesis of scleroderma.
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Affiliation(s)
- Antonello Giovannetti
- Department of Translational and Precision Medicine, Sapienza University of Rome, 00185 Rome, Italy;
- Correspondence: ; Tel.: +39-3476138512
| | - Elisabetta Straface
- Center for Gender-Specific Medicine, Biomarkers Unit, Istituto Superiore di Sanità, 00161 Rome, Italy;
| | - Edoardo Rosato
- Department of Translational and Precision Medicine, Sapienza University of Rome, 00185 Rome, Italy;
| | - Marco Casciaro
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy; (M.C.); (S.G.)
| | - Giovanni Pioggia
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 98164 Messina, Italy;
| | - Sebastiano Gangemi
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy; (M.C.); (S.G.)
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27
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Nrf2 in keratinocytes protects against skin fibrosis via regulating epidermal lesion and inflammatory response. Biochem Pharmacol 2020; 174:113846. [PMID: 32032580 DOI: 10.1016/j.bcp.2020.113846] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/03/2020] [Indexed: 01/23/2023]
Abstract
Nuclear factor-E2-related factor 2 (Nrf2) is a master transcription factor in antioxidant response, protecting against oxidative damage and various diseases. Previous studies suggest that Nrf2 is suppressed in fibrotic skin and Nrf2 agonists represent a therapeutic strategy, which is mainly attributed to Nrf2 function in fibroblasts. However, constitutive activation of Nrf2 may endow cells with proliferation and survival advantage, facilitating skin tumorigenesis. Non-invasive and mild modulation of Nrf2 via topical application may be helpful. Keratinocytes, which are essential for epidermal formation and function maintenance, have been shown to modulate differentiation of fibroblasts in different stages of fibrosis. In this respect, the role of Nrf2 in keratinocytes in skin fibrosis remains elusive. In the present study, bleomycin (BLM)-induced skin fibrosis model was applied to keratinocyte-specific Nrf2 knockout (Nrf2(K)-KO) mice generated with Keratin 14-Cre/loxp system. BLM treatment significantly suppressed Nrf2 expression in the epidermis. Nrf2 deficiency in keratinocytes exacerbated BLM-induced skin fibrosis according to dermal thickness, and immunostaining of collagen and α-SMA. One-dose BLM treatment led to the emergence of apoptotic cells in the epidermis and an elevated number of macrophages and neutrophils in the dermis, which was aggravated by Nrf2 deficiency, as indicated by TUNEL staining, and expression of F4/80 and Ly6G. In line with in vivo evidence, NRF2 silencing in HaCaT cells significantly decreased cell survival rate in response to BLM due to suppressed expression of antioxidative genes and increased intracellular levels of reactive oxygen species (ROS). The mRNA levels of chemokines and cytokines that are capable of recruiting macrophages and neutrophils, including Mcp-1, Il-6 and Il-8, were increased by Nrf2 deficiency in primary mouse keratinocytes. Moreover, bardoxolone methyl (CDDO-Me), a potent Nrf2 activator, ameliorated BLM-induced skin fibrosis after topical administration. These findings indicate that Nrf2 in keratinocytes protects against skin fibrosis via regulating cell resistance to apoptosis and expression of cytokines and chemokines. The restoration of Nrf2 through topical application might be a potential pharmacologic approach to combat skin fibrosis.
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28
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DNA Damage Response and Oxidative Stress in Systemic Autoimmunity. Int J Mol Sci 2019; 21:ijms21010055. [PMID: 31861764 PMCID: PMC6982230 DOI: 10.3390/ijms21010055] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/15/2019] [Accepted: 12/18/2019] [Indexed: 02/08/2023] Open
Abstract
The DNA damage response and repair (DDR/R) network, a sum of hierarchically structured signaling pathways that recognize and repair DNA damage, and the immune response to endogenous and/or exogenous threats, act synergistically to enhance cellular defense. On the other hand, a deregulated interplay between these systems underlines inflammatory diseases including malignancies and chronic systemic autoimmune diseases, such as systemic lupus erythematosus, systemic sclerosis, and rheumatoid arthritis. Patients with these diseases are characterized by aberrant immune response to self-antigens with widespread production of autoantibodies and multiple-tissue injury, as well as by the presence of increased oxidative stress. Recent data demonstrate accumulation of endogenous DNA damage in peripheral blood mononuclear cells from these patients, which is related to (a) augmented DNA damage formation, at least partly due to the induction of oxidative stress, and (b) epigenetically regulated functional abnormalities of fundamental DNA repair mechanisms. Because endogenous DNA damage accumulation has serious consequences for cellular health, including genomic instability and enhancement of an aberrant immune response, these results can be exploited for understanding pathogenesis and progression of systemic autoimmune diseases, as well as for the development of new treatments.
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29
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Reduced Iron in Diabetic Wounds: An Oxidative Stress-Dependent Role for STEAP3 in Extracellular Matrix Deposition and Remodeling. J Invest Dermatol 2019; 139:2368-2377.e7. [DOI: 10.1016/j.jid.2019.05.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/16/2019] [Accepted: 05/23/2019] [Indexed: 12/18/2022]
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30
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Sekiguchi A, Motegi SI, Fujiwara C, Yamazaki S, Inoue Y, Uchiyama A, Akai R, Iwawaki T, Ishikawa O. Inhibitory effect of kaempferol on skin fibrosis in systemic sclerosis by the suppression of oxidative stress. J Dermatol Sci 2019; 96:8-17. [DOI: 10.1016/j.jdermsci.2019.08.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/30/2019] [Accepted: 08/14/2019] [Indexed: 02/06/2023]
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31
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Abstract
Carbon nanotubes (CNTs) are nanomaterials with unique physicochemical properties that are targets of great interest for industrial and commercial applications. Notwithstanding, some characteristics of CNTs are associated with adverse outcomes from exposure to pathogenic particulates, raising concerns over health risks in exposed workers and consumers. Indeed, certain forms of CNTs induce a range of harmful effects in laboratory animals, among which inflammation, fibrosis, and cancer are consistently observed for some CNTs. Inflammation, fibrosis, and malignancy are complex pathological processes that, in summation, underlie a major portion of human disease. Moreover, the functional interrelationship among them in disease pathogenesis has been increasingly recognized. The CNT-induced adverse effects resemble certain human disease conditions, such as pneumoconiosis, idiopathic pulmonary fibrosis (IPF), and mesothelioma, to some extent. Progress has been made in understanding CNT-induced pathologic conditions in recent years, demonstrating a close interconnection among inflammation, fibrosis, and cancer. Mechanistically, a number of mediators, signaling pathways, and cellular processes are identified as major mechanisms that underlie the interplay among inflammation, fibrosis, and malignancy, and serve as pathogenic bases for these disease conditions in CNT-exposed animals. These studies indicate that CNT-induced pathological effects, in particular, inflammation, fibrosis, and cancer, are mechanistically, and in some cases, causatively, interrelated. These findings generate new insights into CNT adverse effects and pathogenesis and provide new targets for exposure monitoring and drug development against inflammation, fibrosis, and cancer caused by inhaled nanomaterials.
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Affiliation(s)
- Jie Dong
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown , WV , USA
| | - Qiang Ma
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown , WV , USA
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32
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Walsh T. Editor’s Pick: Systemic Sclerosis: The Role of YAP/TAZ in Disease Pathogenesis. EUROPEAN MEDICAL JOURNAL 2019. [DOI: 10.33590/emj/10310340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Systemic sclerosis (SSc) is a systemic autoimmune condition of unknown cause. Yes-Associated Protein/Tafazzin (YAP/TAZ) are transcriptional coactivators previously demonstrated to be involved in cellular stretch biology, and form the principal effector molecules of the Hippo signalling pathway. The association between YAP/TAZ and stretch is contingent upon their cytoplasmic localisation (with nuclear translocation, the cell adopts a relaxed state). The author weighs the evidence for a central role for YAP/TAZ signalling in scleroderma spanning the major clinical features of the condition. Several of the features unique to SSc are mediated by cytoplasmic localisation of YAP/TAZ, including the stretch phenotype (through binding to NF-2), arterial lumenal obliteration (through their binding to angiomotin), the promotion of hypergammaglobulinaemia (via feedback to the upstream Hippo signalling molecule Mammalian Ste20-like Kinase 1), and the induction of B-Lymphocyte-Induced Maturation Protein-1 leading to the adoption of Th2 lineage, prominent in SSc. One observes that the induction of the fibrotic phenotype of scleroderma is mediated through GLI1/GLI2 (the effector molecules of the Hedgehog pathway). GLI1/GLI2 are induced to reciprocally enter the nucleus when YAP/TAZ is intracytoplasmic. The latter explains the characteristically increased connective tissue growth factor 2 and endothelin-1 expression. In this article, the author references some examples of the role of YAP/TAZ in the biophysically similar condition nephrogenic systemic fibrosis and suggests a role of YAP/TAZ cytoplasmic sequestration in programmed cell death protein 1-ligand antagonist-induced scleroderma.
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Affiliation(s)
- Thomas Walsh
- Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
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33
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Bromodomain and Extraterminal (BET) Protein Inhibition Restores Redox Balance and Inhibits Myofibroblast Activation. BIOMED RESEARCH INTERNATIONAL 2019; 2019:1484736. [PMID: 31119153 PMCID: PMC6500679 DOI: 10.1155/2019/1484736] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/04/2019] [Accepted: 04/01/2019] [Indexed: 12/28/2022]
Abstract
Background and Objective Progressive pulmonary fibrosis is the main cause of death in patients with systemic sclerosis (SSc) with interstitial lung disease (ILD) and in those with idiopathic pulmonary fibrosis (IPF). Transforming growth factor-β (TGF-β) and NADPH oxidase- (NOX-) derived reactive oxygen species (ROS) are drivers of lung fibrosis. We aimed to determine the role of the epigenetic readers, bromodomain and extraterminal (BET) proteins in the regulation of redox balance in activated myofibroblasts. Methods In TGF-β-stimulated fibroblasts, we investigated the effect of the BET inhibitor JQ1 on the mRNA expression of the prooxidant gene NOX4 and the antioxidant gene superoxide dismutase (SOD2) by quantitative RT-PCR, the antioxidant transcription factor NF-E2-related factor 2 (Nrf2) activity by a reporter assay, and intracellular ROS levels by dichlorofluorescein staining. Myofibroblast activation was determined by α-smooth muscle actin immunocytochemistry. The role of specific BET protein isoforms in NOX4 gene regulation was studied by siRNA silencing and chromatin-immunoprecipitation. Results and Conclusions Affymetrix gene array analysis revealed increased NOX4 and reduced SOD2 expression in SSc and IPF fibroblasts. SOD2 silencing in non-ILD control fibroblasts induced a profibrotic phenotype. TGF-β increased NOX4 and inhibited SOD2 expression, while increasing ROS production and myofibroblast differentiation. JQ1 reversed the TGF-β-mediated NOX4/SOD2 imbalance and Nrf2 inactivation and attenuated ROS production and myofibroblast differentiation. The BET proteins Brd3 and Brd4 were shown to bind to the NOX4 promoter and drive TGF-β-induced NOX4 expression. Our data indicate a critical role of BET proteins in promoting redox imbalance and pulmonary myofibroblast activation and support BET bromodomain inhibitors as a potential therapy for fibrotic lung disease.
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Jaeger VK, Lebrecht D, Nicholson AG, Wells A, Bhayani H, Gazdhar A, Tamm M, Venhoff N, Geiser T, Walker UA. Mitochondrial DNA mutations and respiratory chain dysfunction in idiopathic and connective tissue disease-related lung fibrosis. Sci Rep 2019; 9:5500. [PMID: 30940853 PMCID: PMC6445113 DOI: 10.1038/s41598-019-41933-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 03/21/2019] [Indexed: 12/23/2022] Open
Abstract
Reactive oxygen species (ROS) are implicated in the aetiology of interstitial lung disease (ILD). We investigated the role of large-scale somatically acquired mutations in mitochondrial DNA (mtDNA) and consecutive respiratory chain dysfunction as a trigger of ROS-formation and lung fibrosis. Mitochondria were analysed in lung biopsies from 30 patients with idiopathic or connective tissue disease (CTD)-related ILD and 13 controls. In 17 patients we had paired biopsies from upper and lower lobes. Control samples were taken from lung cancer resections without interstitial fibrosis. Malondialdehyde, a marker of ROS-formation, was elevated in ILD-biopsies (p = 0.044). The activity of the mitochondrial respiratory chain (cytochrome c-oxidase/succinate dehydrogenase [COX/SDH]-ratio) was depressed in ILD (median = 0.10,) compared with controls (0.12, p < 0.001), as was the expression of mtDNA-encoded COX-subunit-2 protein normalized for the nucleus-encoded COX-subunit-4 (COX2/COX4-ratio; ILD-median = 0.6; controls = 2.2; p < 0.001). Wild-type mtDNA copies were slightly elevated in ILD (p = 0.088). The common mtDNA deletion was only present at low levels in controls (median = 0%) and at high levels in ILD (median = 17%; p < 0.001). In ILD-lungs with paired biopsies, lower lobes contained more malondialdehyde and mtDNA deletions than upper lobes and had lower COX2/COX4-ratios and COX/SDH-ratios (all p < 0.001). Acquired mtDNA-mutations and consecutive respiratory chain dysfunction may both trigger and perpetuate ROS-formation in ILD.
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Affiliation(s)
- Veronika K Jaeger
- Department of Rheumatology, University Hospital Basel, Basel, Switzerland
| | - Dirk Lebrecht
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andrew G Nicholson
- Department of Histopathology, Royal Brompton Hospital, Royal Brompton and Harefield NHS Foundation Trust, London, UK.,National Heart and Lung Institute, Imperial College, London, UK
| | - Athol Wells
- National Heart and Lung Institute, Imperial College, London, UK.,Interstitial Lung Disease Unit, Royal Brompton Hospital, Royal Brompton and Harefield NHS Foundation Trust, London, UK
| | - Harshil Bhayani
- Royal Brompton and Harefield NHS Foundation Trust, London, UK
| | - Amiq Gazdhar
- Department of Pulmonary Medicine, University Hospital Bern, Bern, Switzerland
| | - Michael Tamm
- Department of Pneumology, University Hospital Basel, Basel, Switzerland
| | - Nils Venhoff
- Department of Rheumatology and Clinical Immunology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Thomas Geiser
- Department of Pulmonary Medicine, University Hospital Bern, Bern, Switzerland
| | - Ulrich A Walker
- Department of Rheumatology, University Hospital Basel, Basel, Switzerland.
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Abdulle AE, van Roon AM, Smit AJ, Pasch A, van Meurs M, Bootsma H, Bakker SJL, Said MY, Fernandez BO, Feelisch M, van Goor H, Mulder DJ. Rapid free thiol rebound is a physiological response following cold-induced vasoconstriction in healthy humans, primary Raynaud and systemic sclerosis. Physiol Rep 2019; 7:e14017. [PMID: 30916482 PMCID: PMC6436142 DOI: 10.14814/phy2.14017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 12/21/2022] Open
Abstract
Raynaud's phenomenon (RP) is often the first sign of systemic sclerosis (SSc). Molecular mechanisms involved are incompletely understood, but reactive oxygen, nitrogen, and sulfur species are thought to play an important role in the pathogenesis of SSc. Free thiol groups play a protective role against oxidative stress and may represent an attractive therapeutic target. We aimed to investigate the effects of hypothermia-induced vasoconstriction on the responsiveness of redox-related markers. Thirty participants (n = 10/group [SSc, primary Raynaud's phenomenon (PRP), healthy controls (HC)]) were included in this study. Fingertip photoelectric plethysmography was performed during a standardized cooling and recovery experiment. Venous blood was collected at four predetermined time points. Free thiols, NO-derived species (nitros(yl)ated species, nitrite, nitrate), sulfate and endothelin-1 were measured. Lower baseline concentrations of free thiols were observed in PRP and SSc patients (HC: 5.87 [5.41-5.99] μmol/g; PRP: 5.17 [4.74-5.61]; SSc 5.28 [4.75-5.80], P = 0.04). Redox-related markers remained unchanged during cooling. However, an unexpected increase in systemic free thiol concentrations was observed in all groups during the recovery phase. The response of this marker differed between groups, with a higher increase found in SSc patients (HC Δ = 1.30 [1.48-1.17]; PRP Δ = 1.04 [1.06-1.03]; SSc Δ = 1.72 [1.13-1.49], P = 0.04). NO-derived species, sulfate and endothelin-1 levels remained unchanged throughout the recovery phase. This exploratory study sheds light on the rapid responsiveness of systemic free thiol concentrations following reperfusion, which may reflect overall redox balance. The robust response to reperfusion in SSc patients suggests that reductive systems involved in this response are functionally intact in these patients.
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Affiliation(s)
- Amaal Eman Abdulle
- Department of Internal MedicineDivision Vascular MedicineUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Anniek M. van Roon
- Department of Internal MedicineDivision Vascular MedicineUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Andries J. Smit
- Department of Internal MedicineDivision Vascular MedicineUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Andreas Pasch
- Department of Biomedical ResearchUniversity of BernBernSwitzerland
| | - Matijs van Meurs
- Department of Critical CareUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Hendrika Bootsma
- Department of Rheumatology and Clinical ImmunologyUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Stephan J. L. Bakker
- Department of Internal MedicineDivision of NephrologyUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Mohammad Y. Said
- Department of Internal MedicineDivision of NephrologyUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Bernadette O. Fernandez
- Clinical and Experimental SciencesFaculty of MedicineUniversity of SouthamptonSouthamptonUnited Kingdom
| | - Martin Feelisch
- Clinical and Experimental SciencesFaculty of MedicineUniversity of SouthamptonSouthamptonUnited Kingdom
| | - Harry van Goor
- Department of Pathology and Medical BiologySection PathologyUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
| | - Douwe J. Mulder
- Department of Internal MedicineDivision Vascular MedicineUniversity of Groningen – University Medical Centre GroningenGroningenThe Netherlands
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Yasuoka H, Garrett SM, Nguyen XX, Artlett CM, Feghali-Bostwick CA. NADPH oxidase-mediated induction of reactive oxygen species and extracellular matrix deposition by insulin-like growth factor binding protein-5. Am J Physiol Lung Cell Mol Physiol 2019; 316:L644-L655. [PMID: 30810066 DOI: 10.1152/ajplung.00106.2018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Insulin-like growth factor binding protein-5 (IGFBP-5) induces production of the extracellular matrix (ECM) components collagen and fibronectin both in vitro and in vivo and is overexpressed in patients with fibrosing lung diseases, such as idiopathic pulmonary fibrosis (IPF) and systemic sclerosis (SSc). However, the mechanism by which IGFBP-5 exerts its fibrotic effect is incompletely understood. Recent reports have shown a substantial role of reactive oxygen species (ROS) in fibrosis; thus we hypothesized that IGFBP-5 induces production of ROS to mediate the profibrotic process. In vitro analyses revealed that ROS production was induced by recombinant and adenoviral vector-mediated IGFBP-5 (AdBP5) in a dose- and time-dependent manner, regulated through MEK/ERK and JNK signaling, and primarily mediated by NADPH oxidase (Nox). Silencing IGFBP-5 in SSc and IPF fibroblasts reduced ROS production. The antioxidants diphenyleneiodonium and N-acetylcysteine blocked IGFBP-5-stimulated ECM production in normal, SSc, and IPF human primary lung fibroblasts. In murine fibroblasts lacking critical components of the Nox machinery, AdBP5-stimulated ROS production and fibronectin expression were reduced compared with wild-type fibroblasts. IGFBP-5 stimulated transcriptional expression of Nox3 in human fibroblasts while selective knockdown of Nox3 reduced ROS production by IGFBP-5. Thus IGFBP-5 mediates fibrosis through production of ROS in a Nox-dependent manner.
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Affiliation(s)
- Hidekata Yasuoka
- Department of Internal Medicine, Division of Rheumatology, Fujita Health University School of Medicine , Aichi , Japan
| | - Sara M Garrett
- Department of Medicine, Division of Rheumatology and Immunology, Medical University of South Carolina , Charleston, South Carolina
| | - Xinh-Xinh Nguyen
- Department of Medicine, Division of Rheumatology and Immunology, Medical University of South Carolina , Charleston, South Carolina
| | - Carol M Artlett
- Drexel University College of Medicine , Philadelphia, Pennsylvania
| | - Carol A Feghali-Bostwick
- Department of Medicine, Division of Rheumatology and Immunology, Medical University of South Carolina , Charleston, South Carolina
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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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Doridot L, Jeljeli M, Chêne C, Batteux F. Implication of oxidative stress in the pathogenesis of systemic sclerosis via inflammation, autoimmunity and fibrosis. Redox Biol 2019; 25:101122. [PMID: 30737171 PMCID: PMC6859527 DOI: 10.1016/j.redox.2019.101122] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 12/31/2022] Open
Abstract
Systemic sclerosis is an autoimmune disorder characterized by inflammation and a progressive fibrosis affecting the skin and visceral organs. Over the last two decades, it became clear that oxidative stress plays a key role in its pathogenesis. In this review, we highlighted the role of ROS in the various pathological components of systemic sclerosis, namely the inflammatory, the autoimmune and the fibrotic processes. We also discussed how these pathological processes can induce ROS overproduction, thus maintaining a vicious circle. Finally, we summarized the therapeutic approaches targeting oxidative stress tested in systemic sclerosis, in cells, animal models and patients.
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Affiliation(s)
- Ludivine Doridot
- Inserm, U1016, Institut Cochin, Paris, France; Cnrs, UMR8104, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, France.
| | - Mohamed Jeljeli
- Inserm, U1016, Institut Cochin, Paris, France; Cnrs, UMR8104, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, France; Department of Immunology, Cochin Teaching Hospital, AP-HP, 27, rue du faubourg Saint-Jacques, F75014, Paris, France
| | | | - Frédéric Batteux
- Inserm, U1016, Institut Cochin, Paris, France; Cnrs, UMR8104, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, France; Department of Immunology, Cochin Teaching Hospital, AP-HP, 27, rue du faubourg Saint-Jacques, F75014, Paris, France
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Possible Influence of Oxidative Stress on Development of Raynaud Phenomenon in Patients With CREST Scleroderma Syndrome. SERBIAN JOURNAL OF DERMATOLOGY AND VENEREOLOGY 2018. [DOI: 10.2478/sjdv-2018-0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
CREST syndrome represents a form of scleroderma where the progressive autoimmune reaction is mainly manifested by the main symptoms, which make this acronym: calcinosis cutis, Raynaud phenomenon, esophageal dysmotility, sclerodactyly and teleangiectasia. Among the first affected organs is the skin followed by the excessive fibrosis manifested by the deposition of collagen in dermis. Reactive oxygen species (ROS) theory has been underlined as one of the main pathogenetic mechanisms and triggering factor in development of scleroderma. The present study was aimed at estimating the marker of lipid peroxidation products (MDA) in plasma of patients with CREST syndrome having manifested symptoms of both Raynaud syndrome and positive ANA antibodies. The lipid peroxidation (MDA) level was significantly higher in the patients who had CREST syndrome and Raynaud syndrome for less than 10 years compared to the patients suffering from Raynoud syndrome for more than 10 years (p<0.05). Both groups were found to have a significant MDA level increase (p<0.001) compared to the control healthy subjects. In conclusion, the relationship between lipid peroxidation (MDA level) and Raynaud syndrome appearance may emphasize the role of ROS produced by the ischemia-reperfusion injury as an early pathogenetic mechanism in CREST scleroderma syndrome.
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40
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Ames PRJ, Bucci T, Merashli M, Amaral M, Arcaro A, Gentile F, Nourooz-Zadeh J, DelgadoAlves J. Oxidative/nitrative stress in the pathogenesis of systemic sclerosis: are antioxidants beneficial? Free Radic Res 2018; 52:1063-1082. [PMID: 30226391 DOI: 10.1080/10715762.2018.1525712] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Systemic sclerosis (SSc) is a multisystem autoimmune disease: characterised from the clinical side by progressive vasculopathy and fibrosis of the skin and different organs and from the biochemical side by fibroblast deregulation with excessive production of collagen and increased expression of nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4). The latter contributes to an overproduction of reactive oxygen species that through an autocrine loop maintains NOX4 in a state of activation. Reactive oxygen and nitrogen species are implicated in the origin and perpetuation of several clinical manifestations of SSc having vascular damage in common; attempts to dampen oxidative and nitrative stress through different agents with antioxidant properties have not translated into a sustained clinical benefit. Objective of this narrative review is to describe the origin and clinical implications of oxidative and nitrative stress in SSc, with particular focus on the central role of NOX4 and its interactions, to re-evaluate the antioxidant approaches so far used to limit disease progression, to appraise the complexity of antioxidant treatment and to touch on novel pathways elements of which may represent specific treatment targets in the not so distant future.
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Affiliation(s)
- Paul R J Ames
- a Immune Response and Vascular Disease Unit , CEDOC, Nova University , Lisboa , Portugal.,b Department of Haematology , Dumfries Royal Infirmary , Dumfries , UK
| | - Tommaso Bucci
- c Division of Allergy and Clinical Immunology, Department of Internal Medicine , University of Salerno , Baronissi , Italy
| | - Mira Merashli
- d Department of Rheumatology , American University of Beirut , Beirut , Lebanon
| | - Marta Amaral
- a Immune Response and Vascular Disease Unit , CEDOC, Nova University , Lisboa , Portugal
| | - Alessia Arcaro
- e Department of Medicine & Health Sciences , Universita' del Molise , Campobasso , Italy
| | - Fabrizio Gentile
- e Department of Medicine & Health Sciences , Universita' del Molise , Campobasso , Italy
| | - Jaffar Nourooz-Zadeh
- f Nephrology & Kidney Transplantation Research Center , Urmia University of Medical Sciences , Urmia , Iran
| | - Jose DelgadoAlves
- a Immune Response and Vascular Disease Unit , CEDOC, Nova University , Lisboa , Portugal.,g Immunomediated Systemic Diseases Unit, Medicine 4 , Hospital Fernando Fonseca , Amadora , Portugal
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Thuan DTB, Zayed H, Eid AH, Abou-Saleh H, Nasrallah GK, Mangoni AA, Pintus G. A Potential Link Between Oxidative Stress and Endothelial-to-Mesenchymal Transition in Systemic Sclerosis. Front Immunol 2018; 9:1985. [PMID: 30283435 PMCID: PMC6156139 DOI: 10.3389/fimmu.2018.01985] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 08/13/2018] [Indexed: 12/18/2022] Open
Abstract
Systemic sclerosis (SSc), an autoimmune disease that is associated with a number of genetic and environmental risk factors, is characterized by progressive fibrosis and microvasculature damage in the skin, lungs, heart, digestive system, kidneys, muscles, joints, and nervous system. These abnormalities are associated with altered secretion of growth factor and profibrotic cytokines, such as transforming growth factor-beta (TGF-β), interleukin-4 (IL-4), platelet-derived growth factor (PDGF), and connective-tissue growth factor (CTGF). Among the cellular responses to this proinflammatory environment, the endothelial cells phenotypic conversion into activated myofibroblasts, a process known as endothelial to mesenchymal transition (EndMT), has been postulated. Reactive oxygen species (ROS) might play a key role in SSs-associated fibrosis and vascular damage by mediating and/or activating TGF-β-induced EndMT, a phenomenon that has been observed in other disease models. In this review, we identified and critically appraised published studies investigating associations ROS and EndMT and the presence of EndMT in SSc, highlighting a potential link between oxidative stress and EndMT in this condition.
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Affiliation(s)
- Duong Thi Bich Thuan
- Department of Biochemistry, Hue University of Medicine and Pharmacy, University of Hue, Hue, Vietnam
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Ali H Eid
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar.,Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Haissam Abou-Saleh
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Gheyath K Nasrallah
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar.,Biomedical Research Center, Qatar University, Doha, Qatar
| | - Arduino A Mangoni
- Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders Medical Centre, Flinders University, Adelaide, SA, Australia
| | - Gianfranco Pintus
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar.,Biomedical Research Center, Qatar University, Doha, Qatar
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Chaigne B, Clary G, Le Gall M, Dumoitier N, Fernandez C, Lofek S, Chafey P, Moinzadeh P, Krieg T, Denton CP, Mouthon L. Proteomic Analysis of Human Scleroderma Fibroblasts Response to Transforming Growth Factor-ß. Proteomics Clin Appl 2018; 13:e1800069. [PMID: 30141531 DOI: 10.1002/prca.201800069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 07/14/2018] [Indexed: 01/28/2023]
Abstract
PURPOSE Systemic sclerosis (SSc) is characterized by autoimmunity, vasculopathy and fibrosis. Fibrosis is due to an activation of fibroblasts by the transforming growth factor-ß (TGF-ß). This study investigates the proteomic response of SSc fibroblasts to TGF-ß. EXPERIMENTAL DESIGN Skin fibroblasts from diffuse SSc patients and healthy controls (HC) are cultured with or without TGF-ß. Two-dimensional differential in-gel electrophoresis and mass spectrometry (MS) combined with Ingenuity Pathway analysis (IPA) and Panther/David software analyze proteins differentially expressed between groups. Real-time cell analyzer (RTCA) assesses fibroblast proliferation and viability. RESULTS Two-hundred-and-seventy-nine proteins are differentially expressed between groups. Principal component analysis shows significant differences between groups. IPA shows specific process networks such as actin cytoskeleton and integrin signaling. Panther and David software show predominant biological processes such as cellular and metabolic processes. TGF-ß enhances protein synthesis and protein pathways. IPA and RTCA suggest the involvement of epidermal growth factor receptor (EGFR) and phosphatidylinositol 3 kinase (Pi3K). CONCLUSIONS AND CLINICAL RELEVANCE That the proteome of fibroblasts differs between SSc patients and HC is confirmed, and it is demonstrated that fibroblasts exacerbate their proteomic phenotype upon stimulation with TGF-ß. EGFR and Pi3K are highlighted as proteins of interest in SSc fibroblasts.
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Affiliation(s)
- Benjamin Chaigne
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France.,Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares, Vascularites Nécrosantes Et Sclérodermie Systémique, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France
| | - Guilhem Clary
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France.,Proteomic core facility of Paris Descartes University (3P5), 75014 Paris, France
| | - Morgane Le Gall
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France.,Proteomic core facility of Paris Descartes University (3P5), 75014 Paris, France
| | - Nicolas Dumoitier
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France
| | - Claire Fernandez
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France.,Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares, Vascularites Nécrosantes Et Sclérodermie Systémique, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France
| | - Sebastien Lofek
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France
| | - Philippe Chafey
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France.,Proteomic core facility of Paris Descartes University (3P5), 75014 Paris, France
| | - Pia Moinzadeh
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany
| | - Thomas Krieg
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany
| | - Christopher P Denton
- Institute of Immunity and Transplantation, Centre for Rheumatology and Connective Tissue Diseases, Royal Free Hospital, NW3 2QG London, UK
| | - Luc Mouthon
- INSERM U1016, Institut Cochin, 75014 Paris, France.,CNRS UMR 8104, 75014 Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France.,Service de Médecine Interne, Centre de Référence Maladies Systémiques Autoimmunes Rares, Vascularites Nécrosantes Et Sclérodermie Systémique, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, 75014 Paris, France
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Svegliati S, Spadoni T, Moroncini G, Gabrielli A. NADPH oxidase, oxidative stress and fibrosis in systemic sclerosis. Free Radic Biol Med 2018; 125:90-97. [PMID: 29694853 DOI: 10.1016/j.freeradbiomed.2018.04.554] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 04/11/2018] [Accepted: 04/15/2018] [Indexed: 12/16/2022]
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by damage of small vessels, immune abnormalities and exaggerated production of extracellular matrix. The etiology of the disease is unknown and the pathogenesis ill defined. However, there is consistent evidence that oxidative stress contributes to the establishment and progression of the disease. This review examines the most relevant research regarding the involvement of free radicals and of nicotinamide adenine dinucleotide phosphate oxidases (NADPH oxidases; NOX) in the pathogenesis of systemic sclerosis.
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Affiliation(s)
- Silvia Svegliati
- Dipartimento di Scienze Cliniche e Molecolari, Clinica Medica, Università Politecnica delle Marche, Italy
| | - Tatiana Spadoni
- Dipartimento di Scienze Cliniche e Molecolari, Clinica Medica, Università Politecnica delle Marche, Italy
| | - Gianluca Moroncini
- Dipartimento di Scienze Cliniche e Molecolari, Clinica Medica, Università Politecnica delle Marche, Italy
| | - Armando Gabrielli
- Dipartimento di Scienze Cliniche e Molecolari, Clinica Medica, Università Politecnica delle Marche, Italy.
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Abdulle AE, Diercks GFH, Feelisch M, Mulder DJ, van Goor H. The Role of Oxidative Stress in the Development of Systemic Sclerosis Related Vasculopathy. Front Physiol 2018; 9:1177. [PMID: 30197602 PMCID: PMC6117399 DOI: 10.3389/fphys.2018.01177] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 08/06/2018] [Indexed: 12/11/2022] Open
Abstract
Systemic sclerosis (SSc) is a rare connective tissue disease characterized by autoimmunity, vasculopathy, and progressive fibrosis typically affecting multiple organs including the skin. SSc often is a lethal disorder, because effective disease-modifying treatment still remains unavailable. Vasculopathy with endothelial dysfunction, perivascular infiltration of mononuclear cells, vascular wall remodeling and rarefaction of capillaries is the hallmark of the disease. Most patients present with vasospastic attacks of the digital arteries referred to as 'Raynaud's phenomenon,' which is often an indication of an underlying widespread vasculopathy. Although autoimmune responses and inflammation are both found to play an important role in the pathogenesis of this vasculopathy, no definite initiating factors have been identified. Recently, several studies have underlined the potential role of oxidative stress in the pathogenesis of SSc vasculopathy thereby proposing a new aspect in the pathogenesis of this disease. For instance, circulating levels of reactive oxygen species (ROS) related markers have been found to correlate with SSc vasculopathy, the formation of fibrosis and the production of autoantibodies. Excess ROS formation is well-known to lead to endothelial cell (EC) injury and vascular complications. Collectively, these findings suggest a potential role of ROS in the initiation and progression of SSc vasculopathy. In this review, we present the background of oxidative stress related processes (e.g., EC injury, autoimmunity, inflammation, and vascular wall remodeling) that may contribute to SSc vasculopathy. Finally, we describe the use of oxidative stress related read-outs as clinical biomarkers of disease activity and evaluate potential anti-oxidative strategies in SSc.
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Affiliation(s)
- Amaal E. Abdulle
- Department of Internal Medicine, Division of Vascular Medicine, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Gilles F. H. Diercks
- Section Pathology, Department of Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Martin Feelisch
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Douwe J. Mulder
- Department of Internal Medicine, Division of Vascular Medicine, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Harry van Goor
- Section Pathology, Department of Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
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45
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Kavian N, Mehlal S, Jeljeli M, Saidu NEB, Nicco C, Cerles O, Chouzenoux S, Cauvet A, Camus C, Ait-Djoudi M, Chéreau C, Kerdine-Römer S, Allanore Y, Batteux F. The Nrf2-Antioxidant Response Element Signaling Pathway Controls Fibrosis and Autoimmunity in Scleroderma. Front Immunol 2018; 9:1896. [PMID: 30177933 PMCID: PMC6109691 DOI: 10.3389/fimmu.2018.01896] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 07/31/2018] [Indexed: 12/16/2022] Open
Abstract
Systemic sclerosis (SSc) is an autoimmune disease with fibrosis of the skin and internal organs and vascular alterations. Dysregulations in the oxidant/antioxidant balance are known to be a major factor in the pathogenesis of the disease. Indeed, reactive oxygen species (ROS) trigger neoepitopes leading to a breach of immune tolerance and autoimmune responses, activate fibroblasts to proliferate and to produce excess of type I collagen. ROS also alter endothelial cells leading to vascular dysfunction. Glutathione (GSH) is the most potent antioxidant system in eukaryotic cells. Numerous studies have reported a defect in GSH in SSc animal models and humans, but the origin of this defect remains unknown. The transcription factor NRF2 is a key player in the antioxidant defense, as it can induce the transcription of antioxidant and cytoprotective genes, including GSH, through its interaction with the antioxidant response elements. In this work, we investigated whether NRF2 could be implicated in the pathogenesis of SSc, and if this pathway could represent a new therapeutic target in this orphan disease with no curative medicine. Skin biopsies from 11 patients and 10 controls were harvested, and skin fibroblasts were extracted. Experimental SSc was induced both in BALB/c and in nrf2-/- mice by daily intradermal injections of hypochloric acid. In addition, diseased BALB/c mice were treated with an nrf2 agonist, dimethyl fumarate, or placebo. A drop in nrf2 and target genes mRNA levels was observed in skin fibroblasts of SSc patients compared to controls. Moreover, the nrf2 pathway is also downregulated in skins and lungs of SSc mice. In addition, we observed that nrf2-/- mice have a more severe form of SSc with increased fibrosis and inflammation compared to wild-type SSc mice. Diseased mice treated with the nrf2 agonist dimethyl fumarate (DMF) exhibited reduced fibrosis and immune activation compared to untreated mice. The ex vivo treatment of skin fibroblasts from SSc mice with DMF restores GSH intracellular content, decreases ROS production and cell proliferation. These results suggest that the nrf2 pathway is highly dysregulated in human and SSc mice with deleterious consequences on fibrosis and inflammation and that Nrf2 modulation represents a therapeutic target in SSc.
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Affiliation(s)
- Niloufar Kavian
- Laboratoire d'Immunologie, Hôpital Cochin, Paris, France.,INSERM U1016, Institut Cochin, Paris, France
| | - Souad Mehlal
- Laboratoire d'Immunologie, Hôpital Cochin, Paris, France.,INSERM U1016, Institut Cochin, Paris, France
| | - Mohamed Jeljeli
- Laboratoire d'Immunologie, Hôpital Cochin, Paris, France.,INSERM U1016, Institut Cochin, Paris, France
| | | | | | | | | | - Anne Cauvet
- INSERM U1016, Institut Cochin, Paris, France
| | | | | | | | - Saadia Kerdine-Römer
- UMR996 - Inflammation, Chemokines and Immunopathology, INSERM, Univ Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France
| | - Yannick Allanore
- INSERM U1016, Institut Cochin, Paris, France.,Service de Rhumatologie, Hôpital Cochin, Paris, France
| | - Frederic Batteux
- Laboratoire d'Immunologie, Hôpital Cochin, Paris, France.,INSERM U1016, Institut Cochin, Paris, France
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46
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Napolitano F, Rossi FW, Pesapane A, Varricchio S, Ilardi G, Mascolo M, Staibano S, Lavecchia A, Ragno P, Selleri C, Marone G, Matucci-Cerinic M, de Paulis A, Montuori N. N-Formyl Peptide Receptors Induce Radical Oxygen Production in Fibroblasts Derived From Systemic Sclerosis by Interacting With a Cleaved Form of Urokinase Receptor. Front Immunol 2018; 9:574. [PMID: 29670612 PMCID: PMC5893650 DOI: 10.3389/fimmu.2018.00574] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 03/07/2018] [Indexed: 11/28/2022] Open
Abstract
Systemic sclerosis (SSc) is a chronic autoimmune disease characterized by fibrosis, alteration in the microvasculature and immunologic abnormalities. It has been hypothesized that an abnormal redox state could regulate the persistent fibrotic phenotype in SSc patients. N-Formyl peptide receptors (FPRs) are chemotactic receptors overexpressed in fibroblasts derived from SSc patients. In this study, we demonstrated that stimulation of FPRs promotes the generation of reactive oxygen species (ROS) in skin fibroblasts. In fibroblast cells, ROS production was due to FPRs interaction with the urokinase receptor (uPAR) and to β1 integrin engagement. FPRs cross-talk with uPAR and integrins led to Rac1 and ERKs activation. FPRs stimulation increased gp91phox and p67phox expression as well as the direct interaction between GTP-Rac1 and p67phox, thus promoting assembly and activation of the NADPH oxidase complex. FPRs functions occur through interaction with a specific domain of uPAR (residues 88SRSRY92) that can be exposed on the cell membrane by protease-mediated receptor cleavage. Immunohistochemistry analysis with a specific anti-SRSRY antibody showed increased expression of uPAR in a cleaved form, which exposes the SRSRY sequence at its N-terminus (DIIDIII-uPAR88–92) in skin biopsies from SSc patients. As expected by the increased expression of both FPRs and DII-DIII-uPAR88-92, fibroblasts derived from SSc patients showed a significantly increase in ROS generation both at a basal level than after FPRs stimulation, as compared to fibroblasts from normal subjects. C37, a small molecule blocking the interaction between FPRs and uPAR, and selumetinib, a clinically approved MAPKK/ERK inhibitor, significantly inhibited FPRs-mediated ROS production in fibroblasts derived from SSc patients. Thus, FPRs, through the interaction with the uPA/uPAR system, can induce ROS generation in fibroblasts by activating the NADPH oxidase, playing a role in the alteration of the redox state observed in SSc.
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Affiliation(s)
- Filomena Napolitano
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
| | - Francesca Wanda Rossi
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, Naples, Italy
| | - Ada Pesapane
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
| | - Silvia Varricchio
- Department of Advanced Functional Sciences, Pathology Section, University of Naples Federico II, Naples, Italy
| | - Gennaro Ilardi
- Department of Advanced Functional Sciences, Pathology Section, University of Naples Federico II, Naples, Italy
| | - Massimo Mascolo
- Department of Advanced Functional Sciences, Pathology Section, University of Naples Federico II, Naples, Italy
| | - Stefania Staibano
- Department of Advanced Functional Sciences, Pathology Section, University of Naples Federico II, Naples, Italy
| | - Antonio Lavecchia
- Department of Pharmacy, Drug Discovery Laboratory, University of Naples Federico II, Naples, Italy
| | - Pia Ragno
- Department of Chemistry and Biology, University of Salerno, Salerno, Italy
| | - Carmine Selleri
- Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology (IEOS), Consiglio Nazionale delle Ricerche (CNR), Naples, Italy
| | - Marco Matucci-Cerinic
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.,Department of Geriatric Medicine, Division of Rheumatology AOUC, University of Florence, Florence, Italy
| | - Amato de Paulis
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, Naples, Italy
| | - Nunzia Montuori
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, Naples, Italy
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47
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Sng MK, Chan JSK, Teo Z, Phua T, Tan EHP, Wee JWK, Koh NJN, Tan CK, Chen JP, Pal M, Tong BMK, Tnay YL, Ng XR, Zhu P, Chiba S, Wang X, Wahli W, Tan NS. Selective deletion of PPARβ/δ in fibroblasts causes dermal fibrosis by attenuated LRG1 expression. Cell Discov 2018; 4:15. [PMID: 29619245 PMCID: PMC5880809 DOI: 10.1038/s41421-018-0014-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/04/2018] [Indexed: 01/04/2023] Open
Abstract
Connective tissue diseases of the skin are characterized by excessive collagen deposition in the skin and internal organs. Fibroblasts play a pivotal role in the clinical presentation of these conditions. Nuclear receptor peroxisome-proliferator activated receptors (PPARs) are therapeutic targets for dermal fibrosis, but the contribution of the different PPAR subtypes are poorly understood. Particularly, the role of fibroblast PPARβ/δ in dermal fibrosis has not been elucidated. Thus, we generated a mouse strain with selective deletion of PPARβ/δ in the fibroblast (FSPCre-Pparb/d-/-) and interrogated its epidermal and dermal transcriptome profiles. We uncovered a downregulated gene, leucine-rich alpha-2-glycoprotein-1 (Lrg1), of previously unknown function in skin development and architecture. Our findings suggest that the regulation of Lrg1 by PPARβ/δ in fibroblasts is an important signaling conduit integrating PPARβ/δ and TGFβ1-signaling networks in skin health and disease. Thus, the FSPCre-Pparb/d-/- mouse model could serve as a novel tool in the current gunnery of animal models to better understand dermal fibrosis.
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Affiliation(s)
- Ming Keat Sng
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore, 308232 Singapore
| | - Jeremy Soon Kiat Chan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
| | - Ziqiang Teo
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
| | - Terri Phua
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Nobels väg 16, 17177 Stockholm, Sweden
| | - Eddie Han Pin Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
| | - Jonathan Wei Kiat Wee
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
| | - Nikki Jun Ning Koh
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
| | - Chek Kun Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore, 308232 Singapore
| | - Jia Peng Chen
- Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore, 308232 Singapore
| | - Mintu Pal
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006 India
| | - Benny Meng Kiat Tong
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371 Singapore
| | - Ya Lin Tnay
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371 Singapore
| | - Xuan Rui Ng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore, 308232 Singapore
| | - Pengcheng Zhu
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
| | - Shunsuke Chiba
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371 Singapore
| | - Xiaomeng Wang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore, 308232 Singapore
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, 61 Biopolis Drive, Proteos, Singapore, 138673 Singapore
- Department of Cell Biology, Institute of Ophthalmology, University College London, London, UK
- Singapore Eye Research Institute, Singapore, 169856 Singapore
| | - Walter Wahli
- Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore, 308232 Singapore
- INRA ToxAlim, Chemin de Tournefeuille, Toulouse Cedex 3, UMR1331 France
- Center for Integrative Genomics, University of Lausanne, Le Genopode, Lausanne, Switzerland
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551 Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore, 308232 Singapore
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, 61 Biopolis Drive, Proteos, Singapore, 138673 Singapore
- KK Research Centre, KK Women’s and Children Hospital, 100 Bukit Timah Road, Singapore, 229899 Singapore
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48
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Xia X, Dai C, Yu H, Huang X, Chen A, Tan Y, Wang L. Asiatic acid prevents the development of interstitial lung disease in a hypochlorous acid-induced mouse model of scleroderma. Oncol Lett 2018; 15:8711-8716. [PMID: 29805609 DOI: 10.3892/ol.2018.8412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 02/15/2018] [Indexed: 12/15/2022] Open
Abstract
Interstitial lung disease is the most common complication of systemic sclerosis (SSc) and is associated with a high rate of mortality. Due to the complex pathogenesis of SSc, the therapies currently available remain limited. In the present study, the effect of asiatic acid (AA) on SSc-associated pulmonary fibrosis (PF) and its association with the transforming growth factor-β1 (TGF-β1)/Smad2/3 signaling pathway were evaluated. A hypochlorous acid (HOCl)-induced model of SSc was used to evaluate the therapeutic effect of AA on PF in SSc, where AA was administered to SSc mice by gavage. PF was alleviated in the AA-treated SSc mice groups when examined under light microscopy. In addition, there was a decrease in histopathological progression and collagen in the lungs. AA significantly reduced expression of type I collagen in the lungs of mice with SSc. It also significantly suppressed α-smooth muscle actin expression, which attenuated the conversion of fibroblasts into muscle fibroblasts. These AA-associated antifibrosis and anti-immune effects were mediated through the significant downregulation of advanced oxidation protein product, E-selectin, and anti-DNA topoisomerase-1 autoantibody levels in the serum. Furthermore, the expression levels of TGF-β1 and the phosphorylated-Smad2/3/Smad2/3 ratios in AA-treated SSc mice were similar to the control. The presence of pulmonary inflammation and fibrosis was confirmed in the HOCl-induced SSc mice and the results demonstrated that selective inhibition of reactive oxygen species prevented PF. By focusing on the classical TGF-β1/Smad2/3 signaling pathway, a mechanism of action of AA was identified to be associated with the inhibition of Smad2/3 activation through negative regulation of Smad2/3 phosphorylation.
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Affiliation(s)
- Xiaoru Xia
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Caijun Dai
- Department of Respiratory Medicine, Jinhua Municipal Central Hospital, Zhejiang University Jinhua Hospital, Jinhua, Zhejiang 321000, P.R. China
| | - Hua Yu
- Department of Geriatric Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiaoying Huang
- Department of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Ali Chen
- Department of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yingxia Tan
- Central Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Liangxing Wang
- Department of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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49
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Jiménez-Altayó F, Meirelles T, Crosas-Molist E, Sorolla MA, Del Blanco DG, López-Luque J, Mas-Stachurska A, Siegert AM, Bonorino F, Barberà L, García C, Condom E, Sitges M, Rodríguez-Pascual F, Laurindo F, Schröder K, Ros J, Fabregat I, Egea G. Redox stress in Marfan syndrome: Dissecting the role of the NADPH oxidase NOX4 in aortic aneurysm. Free Radic Biol Med 2018; 118:44-58. [PMID: 29471108 DOI: 10.1016/j.freeradbiomed.2018.02.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 02/12/2018] [Accepted: 02/15/2018] [Indexed: 11/16/2022]
Abstract
Marfan syndrome (MFS) is characterized by the formation of ascending aortic aneurysms resulting from altered assembly of extracellular matrix fibrillin-containing microfibrils and dysfunction of TGF-β signaling. Here we identify the molecular targets of redox stress in aortic aneurysms from MFS patients, and investigate the role of NOX4, whose expression is strongly induced by TGF-β, in aneurysm formation and progression in a murine model of MFS. Working models included aortae and cultured vascular smooth muscle cells (VSMC) from MFS patients, and a NOX4-deficient Marfan mouse model (Fbn1C1039G/+-Nox4-/-). Increased tyrosine nitration and reactive oxygen species levels were found in the tunica media of human aortic aneurysms and in cultured VSMC. Proteomic analysis identified nitrated and carbonylated proteins, which included smooth muscle α-actin (αSMA) and annexin A2. NOX4 immunostaining increased in the tunica media of human Marfan aorta and was transcriptionally overexpressed in VSMC. Fbn1C1039G/+-Nox4-/- mice aortas showed a reduction of fragmented elastic fibers, which was accompanied by an amelioration in the Marfan-associated enlargement of the aortic root. Increase in the contractile phenotype marker calponin in the tunica media of MFS mice aortas was abrogated in Fbn1C1039G/+-Nox4-/- mice. Endothelial dysfunction evaluated by myography in the Marfan ascending aorta was prevented by the absence of Nox4 or catalase-induced H2O2 decomposition. We conclude that redox stress occurs in MFS, whose targets are actin-based cytoskeleton members and regulators of extracellular matrix homeostasis. Likewise, NOX4 have an impact in the progression of the aortic dilation in MFS and in the structural organization of the aortic tunica media, the VSMC phenotypic modulation, and endothelial function.
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Affiliation(s)
- Francesc Jiménez-Altayó
- Departament de Farmacologia, Terapèutica i Toxicologia, Institut de Neurociències, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Thayna Meirelles
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, and IDIBAPS, Barcelona, Spain
| | - Eva Crosas-Molist
- TGF-β and Cancer Group, Oncobell Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Alba Sorolla
- Institut de Recerca Biomèdica de Lleida (IRB Lleida), Lleida, Spain; Departament de Ciències Mèdiques Bàsiques, Universitat de Lleida, Lleida, Spain
| | - Darya Gorbenko Del Blanco
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, and IDIBAPS, Barcelona, Spain
| | - Judit López-Luque
- TGF-β and Cancer Group, Oncobell Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | | | - Ana-Maria Siegert
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, and IDIBAPS, Barcelona, Spain
| | - Fabio Bonorino
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, and IDIBAPS, Barcelona, Spain
| | - Laura Barberà
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, and IDIBAPS, Barcelona, Spain
| | - Carolina García
- Department of Pathology, Hospital de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, and Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain
| | - Enric Condom
- Department of Pathology, Hospital de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, and Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain
| | - Marta Sitges
- Cardiovascular Institute, Hospital Clinic, IDIBAPS-University of Barcelona, Barcelona, Spain
| | | | - Francisco Laurindo
- Heart Institute (InCor), University of São Paulo School of Medicine, São Paulo, Brazil
| | - Katrin Schröder
- German Center of Cardiovascular Research (DZHK), Partner site Rhein Main, Frankfurt am Main, Germany
| | - Joaquim Ros
- Institut de Recerca Biomèdica de Lleida (IRB Lleida), Lleida, Spain; Departament de Ciències Mèdiques Bàsiques, Universitat de Lleida, Lleida, Spain
| | - Isabel Fabregat
- TGF-β and Cancer Group, Oncobell Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Department de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Gustavo Egea
- Department de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, and IDIBAPS, Barcelona, Spain.
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50
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Dosoki H, Stegemann A, Taha M, Schnittler H, Luger TA, Schröder K, Distler JHW, Kerkhoff C, Böhm M. Targeting of NADPH oxidase in vitro and in vivo suppresses fibroblast activation and experimental skin fibrosis. Exp Dermatol 2018; 26:73-81. [PMID: 27576129 DOI: 10.1111/exd.13180] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/19/2016] [Indexed: 12/15/2022]
Abstract
Although there is increasing evidence that oxidative stress is involved in collagen synthesis and myofibroblast activation, the NADPH oxidase (Nox) system is incompletely investigated in the context of human dermal fibroblasts (HDFs) and skin fibrosis. Using the pan-Nox inhibitor diphenyleneiodonium (DPI) as an initial tool, we show that gene expression of collagen type I, α-smooth muscle actin (α-SMA) and fibronectin 1 is suppressed in HDFs. Detailed expression analysis of all Nox isoforms and adaptors revealed expression of RNA and protein expression of Nox4, p22phox and Poldip2 but neither Nox1 nor Nox2. Nox4 could be immunolocalized to the endoplasmic reticulum. Importantly, TGF-β1 had a dose- and time-dependent upregulating effect on NADH activity and Nox4 gene expression in HDFs. Genetic silencing of Nox4 as demonstrated by siRNA in HDFs as well as in murine fibroblasts established from Nox4 knockout mice confirmed that TGF-β1 -mediated collagen type I gene, α-SMA and fibronectin 1 gene expressions were Nox4-dependent. This TGF-β1 effect was mediated by Smad3 as shown by in silico promoter analysis, pharmacological inhibition and gene silencing of Smad3. The relevance of these findings is highlighted in the bleomycin-induced scleroderma mouse model. DPI treatment attenuated skin fibrosis and myofibroblast activation. Moreover, Nox4 knockdown by siRNA reduced skin collagen synthesis, α-SMA and fibronectin 1 expression in vivo. Finally, analyses of HDFs from patients with systemic sclerosis confirmed the expression of Nox4 and its adaptors, whereas Nox1 and Nox2 were not detectable. Our findings indicate that Nox4 targeting is a promising future treatment for fibrotic skin diseases.
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Affiliation(s)
- Heba Dosoki
- Department of Dermatology, University of Münster, Münster, Germany.,Department of Botany and Microbiology, Alexandria University, Alexandria, Egypt
| | - Agatha Stegemann
- Department of Dermatology, University of Münster, Münster, Germany
| | - Muna Taha
- Institute of Anatomy & Vascular Biology, University of Münster, Münster, Germany
| | - Hans Schnittler
- Institute of Anatomy & Vascular Biology, University of Münster, Münster, Germany
| | - Thomas A Luger
- Department of Dermatology, University of Münster, Münster, Germany
| | - Katrin Schröder
- Institute of Cardiovascular Physiology, Goethe-University, Frankfurt, Germany
| | - Jörg H W Distler
- Department of Internal Medicine 3 and Institute for Clinical Immunology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Claus Kerkhoff
- Department of Biomedical Sciences, School of Human Sciences, University of Osnabrück, Osnabrück, Germany
| | - Markus Böhm
- Department of Dermatology, University of Münster, Münster, Germany
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