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Wareing N, Mills TW, Collum S, Wu M, Revercomb L, Girard R, Lyons M, Skaug B, Bi W, Ali MA, Koochak H, Flores AR, Yang Y, Zheng WJ, Swindell W, Assassi S, Karmouty-Quintana H. Deletion of adipocyte Sine Oculis Homeobox Homolog 1 prevents lipolysis and attenuates skin fibrosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.22.595271. [PMID: 38826482 PMCID: PMC11142148 DOI: 10.1101/2024.05.22.595271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Background The cardinal feature of systemic sclerosis (SSc) is skin thickening and tightening. Targetable mechanisms for skin features remain elusive. Drugs successful in treating internal organ manifestations have failed efficacy in skin. Dermal white adipose tissue (DWAT) is amongst the understudied contributors to skin manifestations. This study proposes the role of sine oculis homeobox homolog 1 (SIX1), a gene previously unrecognized as a contributor to dermal lipoatrophy characteristic of early skin fibrosis in SSc. Methods Skin gene expression of SIX1 was analyzed in the GENISOS and PRESS SSc cohorts. Correlation analysis was performed with Spearman rank analysis. Novel mouse models were developed using the Cre-loxp system to knock out Six1 in all cells and mature adipocytes. Subcutaneous bleomycin was used to model early DWAT atrophy and dermal fibrosis characteristic of SSc. Findings SIX1 was upregulated in SSc skin, the expression of which correlates with adipose-associated genes and molecular pathways. Genetic deletion of Six1 in all cells in mice challenged with bleomycin abrogated end-stage fibrotic gene expression and dermal adipocyte shrinkage. Adipocyte specific Six1 deletion was able to attenuate the early increase in skin thickness, a hallmark of experimental skin fibrosis. Further studies revealed a link between elevated SIX1 and increased expression of SERPINE1 and its protein PAI-1 which are known pro-fibrotic mediators. Interpretation This work identifies SIX1 as an early marker of skin fibrosis in SSc. We also demonstrate a causative role of Six1 in skin fibrosis by promoting adipocyte loss and show that deletion of Six1 in adipocytes has the potential of impacting early disease progression.
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Affiliation(s)
- Nancy Wareing
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth Houston), TX, USA
- Division of Rheumatology, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - Tingting W Mills
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth Houston), TX, USA
| | - Scott Collum
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth Houston), TX, USA
| | - Minghua Wu
- Division of Rheumatology, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | | | - Rene Girard
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth Houston), TX, USA
| | - Marka Lyons
- Division of Rheumatology, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - Brian Skaug
- Division of Rheumatology, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - Weizhen Bi
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth Houston), TX, USA
| | - Meer A. Ali
- D Bradley McWilliams School of Biomedical Informatics, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - Haniyeh Koochak
- Department of Pediatrics, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - Anthony R Flores
- Department of Pediatrics, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - Yuntao Yang
- D Bradley McWilliams School of Biomedical Informatics, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - W Jim Zheng
- D Bradley McWilliams School of Biomedical Informatics, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - William Swindell
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX
| | - Shervin Assassi
- Division of Rheumatology, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth Houston), TX, USA
- Divisions of Critical Care, Pulmonary and Sleep Medicine, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston TX, USA
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2
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Qi F, Jin H. The potential role of tumor necrosis factor-α in thrombosis in livedoid vasculopathy. Arch Dermatol Res 2024; 316:124. [PMID: 38637417 DOI: 10.1007/s00403-024-02857-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/25/2024] [Accepted: 04/07/2024] [Indexed: 04/20/2024]
Affiliation(s)
- Fei Qi
- Department of Dermatology, Peking Union Medical College Hospital (Dongdan campus), Chinese Academy of Medical Science and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Beijing, China
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China
| | - HongZhong Jin
- Department of Dermatology, Peking Union Medical College Hospital (Dongdan campus), Chinese Academy of Medical Science and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, China.
- State Key Laboratory of Complex Severe and Rare Diseases, Beijing, China.
- National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China.
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3
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Lee AR, Lee SY, Choi JW, Um IG, Na HS, Lee JH, Cho ML. Establishment of a humanized mouse model of keloid diseases following the migration of patient immune cells to the lesion: Patient-derived keloid xenograft (PDKX) model. Exp Mol Med 2023; 55:1713-1719. [PMID: 37524866 PMCID: PMC10474158 DOI: 10.1038/s12276-023-01045-6] [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: 11/04/2022] [Accepted: 04/24/2023] [Indexed: 08/02/2023] Open
Abstract
Keloid disorder is an abnormal fibroproliferative reaction that can occur on any area of skin, and it can impair the quality of life of affected individuals. To investigate the pathogenesis and develop a treatment strategy, a preclinical animal model of keloid disorder is needed. However, keloid disorder is unique to humans, and the development of an animal model of keloid disorder is highly problematic. We developed the patient-derived keloid xenograft (PDKX), which is a humanized mouse model, and compared it to the traditional mouse xenograft model (transplantation of only keloid lesions). To establish the PDKX model, peripheral mononuclear cells (PBMCs) from ten keloid patients or five healthy control subjects were injected into NOD/SCID/IL-2Rγnull mice, and their keloid lesions were grafted onto the back after the engraftment of immune cells (transplantation of keloid lesions and KP PBMCs or HC PBMCs). Four weeks after surgery, the grafted keloid lesion was subjected to histologic evaluation. Compared to the traditional model, neotissue formed along the margin of the grafted skin, and lymphocyte infiltration and collagen synthesis were significantly elevated in the PDKX model. The neotissue sites resembled the margin areas of keloids in several respects. In detail, the levels of human Th17 cells, IL-17, HIF-1a, and chemokines were significantly elevated in the neotissue of the PDKX model. Furthermore, the weight of the keloid lesion was increased significantly in the PDKX model, which was due to the proinflammatory microenvironment of the keloid lesion. We confirmed that our patient-derived keloid xenograft (PDKX) model mimicked keloid disorder by recapitulating the in vivo microenvironment. This model will contribute to the investigation of cellular mechanisms and therapeutic treatments for keloid disorders.
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Affiliation(s)
- A Ram Lee
- Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Seon-Yeong Lee
- Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jeong Won Choi
- Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - In Gyu Um
- Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Hyun Sik Na
- Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Jung Ho Lee
- Department of Plastic and Reconstructive Surgery, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
| | - Mi-La Cho
- Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, South Korea.
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4
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Kuroiwa T, Lui H, Nakagawa K, Iida N, Desrochers C, Wan R, Adam E, Larson D, Amadio P, Gingery A. Impact of High Fat Diet and Sex in a Rabbit Model of Carpal Tunnel Syndrome. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.15.549152. [PMID: 37546859 PMCID: PMC10402177 DOI: 10.1101/2023.07.15.549152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Carpal tunnel syndrome (CTS) is a common musculoskeletal disorder, characterized by fibrosis of the subsynovial connective tissue (SSCT) mediated by transforming growth factor beta (TGF-β). Risk factors for CTS include metabolic dysfunction and age. Additionally, the incidence of CTS is higher in women. In this study we hypothesized that a high-fat diet (HFD), a common driver of metabolic dysfunction, would promote SSCT fibrosis found in CTS and that this response would be sex dependent. To test this, we examined the effects of HFD and sex on SSCT fibrosis using our established rabbit model of CTS. Forty-eight (24 male, 24 female) adult rabbits were divided into four groups including HFD or standard diet with and without CTS induction. SSCT was collected for histological and gene expression analysis. HFD promoted SSCT thickening and upregulated profibrotic genes, including TGF-β. Fibrotic genes were differentially expressed in males and females. Interestingly while the prevalence of CTS is greater in women than in men, the converse is observed in the presence of metabolic dysfunction. This work recapitulates this clinical observation and begins to elucidate the sex-based differences found in SSCT fibrosis. This knowledge should drive further research and may lead to metabolic and sex specific therapeutic strategies for the treatment of patients with CTS.
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5
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Inoue R, Yasuma T, Fridman D’Alessandro V, Toda M, Ito T, Tomaru A, D’Alessandro-Gabazza CN, Tsuruga T, Okano T, Takeshita A, Nishihama K, Fujimoto H, Kobayashi T, Gabazza EC. Amelioration of Pulmonary Fibrosis by Matrix Metalloproteinase-2 Overexpression. Int J Mol Sci 2023; 24:ijms24076695. [PMID: 37047672 PMCID: PMC10095307 DOI: 10.3390/ijms24076695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023] Open
Abstract
Idiopathic pulmonary fibrosis is a progressive and fatal disease with a poor prognosis. Matrix metalloproteinase-2 is involved in the pathogenesis of organ fibrosis. The role of matrix metalloproteinase-2 in lung fibrosis is unclear. This study evaluated whether overexpression of matrix metalloproteinase-2 affects the development of pulmonary fibrosis. Lung fibrosis was induced by bleomycin in wild-type mice and transgenic mice overexpressing human matrix metalloproteinase-2. Mice expressing human matrix metalloproteinase-2 showed significantly decreased infiltration of inflammatory cells and inflammatory and fibrotic cytokines in the lungs compared to wild-type mice after induction of lung injury and fibrosis with bleomycin. The computed tomography score, Ashcroft score of fibrosis, and lung collagen deposition were significantly reduced in human matrix metalloproteinase transgenic mice compared to wild-type mice. The expression of anti-apoptotic genes was significantly increased, while caspase-3 activity was significantly reduced in the lungs of matrix metalloproteinase-2 transgenic mice compared to wild-type mice. Active matrix metalloproteinase-2 significantly decreased bleomycin-induced apoptosis in alveolar epithelial cells. Matrix metalloproteinase-2 appears to protect against pulmonary fibrosis by inhibiting apoptosis of lung epithelial cells.
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Affiliation(s)
- Ryo Inoue
- Department of Immunology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
- Central Institute for Experimental Animals, Kawasaki 210-0821, Japan
| | - Taro Yasuma
- Department of Immunology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
- Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | | | - Masaaki Toda
- Department of Immunology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Toshiyuki Ito
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Atsushi Tomaru
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | | | - Tatsuki Tsuruga
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Tomohito Okano
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Atsuro Takeshita
- Department of Immunology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
- Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Kota Nishihama
- Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Hajime Fujimoto
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Tetsu Kobayashi
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
| | - Esteban C. Gabazza
- Department of Immunology, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
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6
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Browning JL, Bhawan J, Tseng A, Crossland N, Bujor AM, Akassoglou K, Assassi S, Skaug B, Ho J. Extensive and Persistent Extravascular Dermal Fibrin Deposition Characterizes Systemic Sclerosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.16.523256. [PMID: 36711912 PMCID: PMC9882194 DOI: 10.1101/2023.01.16.523256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by progressive multiorgan fibrosis. While the cause of SSc remains unknown, a perturbed vasculature is considered a critical early step in the pathogenesis. Using fibrinogen as a marker of vascular leakage, we found extensive extravascular fibrinogen deposition in the dermis of both limited and diffuse systemic sclerosis disease, and it was present in both early and late-stage patients. Based on a timed series of excision wounds, retention on the fibrin deposit of the splice variant domain, fibrinogen αEC, indicated a recent event, while fibrin networks lacking the αEC domain were older. Application of this timing tool to SSc revealed considerable heterogeneity in αEC domain distribution providing unique insight into disease activity. Intriguingly, the fibrinogen-αEC domain also accumulated in macrophages. These observations indicate that systemic sclerosis is characterized by ongoing vascular leakage resulting in extensive interstitial fibrin deposition that is either continually replenished and/or there is impaired fibrin clearance. Unresolved fibrin deposition might then incite chronic tissue remodeling.
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Affiliation(s)
- Jeffrey L Browning
- Department of Microbiology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- Department of Rheumatology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
| | - Jag Bhawan
- Department of Dermatopathology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
| | - Anna Tseng
- Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA
| | - Nicholas Crossland
- Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA
| | - Andreea M Bujor
- Department of Rheumatology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
| | - Katerina Akassoglou
- Gladstone Institute of Neurological Disease San Francisco California USA
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA
| | - Shervin Assassi
- Division of Rheumatology, University of Texas Health Science Center, Houston, TX
| | - Brian Skaug
- Division of Rheumatology, University of Texas Health Science Center, Houston, TX
| | - Jonathan Ho
- Department of Dermatopathology, Boston University Chobanian & Avedesian School of Medicine, Boston, MA
- Section Dermatology University of the West Indies, Mona Jamaica
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7
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Kanno Y, Shu E. α2-Antiplasmin as a Potential Therapeutic Target for Systemic Sclerosis. Life (Basel) 2022; 12:life12030396. [PMID: 35330147 PMCID: PMC8953682 DOI: 10.3390/life12030396] [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: 02/07/2022] [Revised: 03/04/2022] [Accepted: 03/04/2022] [Indexed: 11/24/2022] Open
Abstract
Systemic sclerosis is a connective tissue disease of unknown origin that is characterized by immune system abnormalities, vascular damage, and extensive fibrosis of the skin and visceral organs. α2-antiplasmin is known to be the main plasmin inhibitor and has various functions such as cell differentiation and cytokine production, as well as the regulation of the maintenance of the immune system, endothelial homeostasis, and extracellular matrix metabolism. The expression of α2-antiplasmin is elevated in dermal fibroblasts from systemic sclerosis patients, and the blockade of α2-antiplasmin suppresses fibrosis progression and vascular dysfunction in systemic sclerosis model mice. α2-antiplasmin may have promise as a potential therapeutic target for systemic sclerosis. This review considers the role of α2-antiplasmin in the progression of systemic sclerosis.
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Affiliation(s)
- Yosuke Kanno
- Department of Clinical Pathological Biochemistry, Faculty of Pharmaceutical Science, Doshisha Women’s College of Liberal Arts, 97-1 Kodo Kyotanabe, Kyoto 610-0395, Japan
- Department of Dermatology, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan;
- Correspondence: ; Tel.:+81-0774-65-8629
| | - En Shu
- Department of Dermatology, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan;
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8
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Kolstad KD, Khatri A, Donato M, Chang SE, Li S, Steen VD, Utz PJ, Khatri P, Chung L. Cytokine signatures differentiate systemic sclerosis patients at high versus low risk for pulmonary arterial hypertension. Arthritis Res Ther 2022; 24:39. [PMID: 35139913 PMCID: PMC8827262 DOI: 10.1186/s13075-022-02734-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/01/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Pulmonary arterial hypertension (PAH) affects approximately 10% of patients with systemic sclerosis (SSc) and is a leading cause of death. We sought to identify serum cytokine signatures that risk stratify SSc patients for this potentially fatal complication. METHODS Subjects at high risk for PAH and with incident PAH based on right heart catheterization (RHC) were enrolled in the multi-center prospective registry, Pulmonary Hypertension Assessment and Recognition of Outcomes in Scleroderma (PHAROS). Low-risk SSc patients were enrolled at Stanford and had normal pulmonary function test and echocardiogram parameters. Serum was available from 71 high-risk patients, 81 incident PAH patients, 10 low-risk patients, and 20 healthy controls (HC). Custom 14- and 65-plex arrays were used for cytokine analysis. Cytokine expression was compared between patient groups by principal component analysis and Tukey's test result. A multiple hypotheses corrected p value <0.05 was considered significant. RESULTS Exploratory analysis using principal components showed unique clustering for each patient group. There was a significant difference in cytokine expression in at least one group comparison for every cytokine. Overall, there was very little difference in cytokine expression comparing high-risk and PAH patient groups; however, these groups had substantially different cytokine profiles compared to low-risk patients and HC. CONCLUSION These data suggest that cytokine profiles can distinguish SSc patients who are at high-risk for or have PAH from SSc patients who may be at lower risk for PAH and HC. However, high-risk and PAH patients had very similar cytokine profiles, suggesting that these patients are on a disease continuum.
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Affiliation(s)
- Kathleen D. Kolstad
- grid.168010.e0000000419368956Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Palo Alto, CA USA ,grid.19006.3e0000 0000 9632 6718Department of Medicine, Division of Rheumatology, University of California Los Angeles, Los Angeles, CA USA
| | - Avani Khatri
- grid.168010.e0000000419368956Institute for Immunity, Transplantation, and Infection, Stanford University, Palo Alto, CA USA
| | - Michele Donato
- grid.168010.e0000000419368956Institute for Immunity, Transplantation, and Infection, Stanford University, Palo Alto, CA USA
| | - Sarah E. Chang
- grid.168010.e0000000419368956Institute for Immunity, Transplantation, and Infection, Stanford University, Palo Alto, CA USA
| | - Shufeng Li
- grid.168010.e0000000419368956Department of Dermatology, Stanford University School of Medicine, Palo Alto, CA USA
| | - Virginia D. Steen
- grid.411667.30000 0001 2186 0438Division of Rheumatology, Georgetown University Medical Center, Washington, DC USA
| | - Paul J. Utz
- grid.168010.e0000000419368956Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Palo Alto, CA USA
| | - Purvesh Khatri
- grid.168010.e0000000419368956Institute for Immunity, Transplantation, and Infection, Stanford University, Palo Alto, CA USA ,grid.168010.e0000000419368956Department of Medicine, Center for Biomedical Informatics Research, Stanford University, Palo Alto, CA USA
| | - Lorinda Chung
- grid.168010.e0000000419368956Department of Medicine, Division of Immunology and Rheumatology, Stanford University School of Medicine, Palo Alto, CA USA ,grid.280747.e0000 0004 0419 2556Department of Medicine, Division of Rheumatology, Palo Alto VA Health Care System, Palo Alto, CA USA
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9
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Sillen M, Declerck PJ. A Narrative Review on Plasminogen Activator Inhibitor-1 and Its (Patho)Physiological Role: To Target or Not to Target? Int J Mol Sci 2021; 22:ijms22052721. [PMID: 33800359 PMCID: PMC7962805 DOI: 10.3390/ijms22052721] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/28/2021] [Accepted: 03/03/2021] [Indexed: 02/06/2023] Open
Abstract
Plasminogen activator inhibitor-1 (PAI-1) is the main physiological inhibitor of plasminogen activators (PAs) and is therefore an important inhibitor of the plasminogen/plasmin system. Being the fast-acting inhibitor of tissue-type PA (tPA), PAI-1 primarily attenuates fibrinolysis. Through inhibition of urokinase-type PA (uPA) and interaction with biological ligands such as vitronectin and cell-surface receptors, the function of PAI-1 extends to pericellular proteolysis, tissue remodeling and other processes including cell migration. This review aims at providing a general overview of the properties of PAI-1 and the role it plays in many biological processes and touches upon the possible use of PAI-1 inhibitors as therapeutics.
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10
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Bayram B, Owen AR, Dudakovic A, Bettencourt JW, Limberg AK, Morrey ME, Sanchez-Sotelo J, Berry DJ, Kocher JP, van Wijnen AJ, Abdel MP. Elevated Expression of Plasminogen Activator Inhibitor (PAI-1/SERPINE1) is Independent from rs1799889 Genotypes in Arthrofibrosis. Meta Gene 2021; 28. [PMID: 33816122 DOI: 10.1016/j.mgene.2021.100877] [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: 11/15/2022] Open
Abstract
Arthrofibrosis is characterized by excessive extracellular matrix deposition in patients with total knee arthroplasties (TKAs) and causes undesirable joint stiffness. The pathogenesis of arthrofibrosis remains elusive and currently there are no diagnostic biomarkers for the pathological formation of this connective tissue. Fibrotic soft tissues are known to have elevated levels of plasminogen activator inhibitor-1 (PAI-1) (encoded by SERPINE1), a secreted serine protease inhibitor that moderates extracellular matrix remodeling and tissue homeostasis. The 4G/5G insertion/deletion (rs1799889) is a well-known SERPINE1 polymorphism that directly modulates PAI-1 levels. Homozygous 4G/4G allele carriers typically have higher PAI-1 levels and may predispose patients to soft tissue fibrosis (e.g., liver, lung, and kidney). Here, we examined the genetic contribution of the SERPINE1 rs1799889 polymorphism to musculoskeletal fibrosis in arthrofibrotic (n = 100) and non-arthrofibrotic (n = 100) patients using Sanger Sequencing. Statistical analyses revealed that the allele frequencies of the SERPINE1 rs1799889 polymorphism are similar in arthrofibrotic and non-arthrofibrotic patient cohorts. Because the fibrosis related SERPINE1 rs1799889 polymorphism is independent of arthrofibrosis susceptibility in TKA patients, the possibility arises that fibrosis of joint connective tissues may involve unique genetic determinants distinct from those linked to classical soft tissue fibrosis.
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Affiliation(s)
- Banu Bayram
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Aaron R Owen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Amel Dudakovic
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States.,Department of Biochemistry & Molecular Biology, Mayo Clinic, Rochester, MN, United States
| | | | - Afton K Limberg
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Mark E Morrey
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | | | - Daniel J Berry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
| | - Jean-Pierre Kocher
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, United States
| | - Andre J van Wijnen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States.,Department of Biochemistry & Molecular Biology, Mayo Clinic, Rochester, MN, United States
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, United States
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11
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Löfdahl A, Tornling G, Wigén J, Larsson-Callerfelt AK, Wenglén C, Westergren-Thorsson G. Pathological Insight into 5-HT 2B Receptor Activation in Fibrosing Interstitial Lung Diseases. Int J Mol Sci 2020; 22:ijms22010225. [PMID: 33379351 PMCID: PMC7796180 DOI: 10.3390/ijms22010225] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/21/2020] [Accepted: 12/24/2020] [Indexed: 11/29/2022] Open
Abstract
Interstitial lung disease (ILD) encompasses a heterogeneous group of more than 200 conditions, of which primarily idiopathic pulmonary fibrosis (IPF), idiopathic nonspecific interstitial pneumonia, hypersensitivity pneumonitis, ILD associated with autoimmune diseases and sarcoidosis may present a progressive fibrosing (PF) phenotype. Despite different aetiology and histopathological patterns, the PF-ILDs have similarities regarding disease mechanisms with self-sustaining fibrosis, which suggests that the diseases may share common pathogenetic pathways. Previous studies show an enhanced activation of serotonergic signaling in pulmonary fibrosis, and the serotonin (5-HT)2 receptors have been implicated to have important roles in observed profibrotic actions. Our research findings in support by others, demonstrate antifibrotic effects with 5-HT2B receptor antagonists, alleviating several key events common for the fibrotic diseases such as myofibroblast differentiation and connective tissue deposition. In this review, we will address the potential role of 5-HT and in particular the 5-HT2B receptors in three PF-ILDs: ILD associated with systemic sclerosis (SSc-ILD), ILD associated with rheumatoid arthritis (RA-ILD) and IPF. Highlighting the converging pathways in these diseases discloses the 5-HT2B receptor as a potential disease target for PF-ILDs, which today have an urgent unmet need for therapeutic strategies.
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Affiliation(s)
- Anna Löfdahl
- Lung Biology, Department of Experimental Medical Science, Lund University, BMC C12, 22184 Lund, Sweden; (J.W.); (A.-K.L.-C.); (G.W.-T.)
- Correspondence:
| | - Göran Tornling
- AnaMar AB, Medicon Village, Scheeletorget 1, 22381 Lund, Sweden; (C.W.); (G.T.)
- Respiratory Medicine Division, Department of Medicine Solna, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Jenny Wigén
- Lung Biology, Department of Experimental Medical Science, Lund University, BMC C12, 22184 Lund, Sweden; (J.W.); (A.-K.L.-C.); (G.W.-T.)
| | - Anna-Karin Larsson-Callerfelt
- Lung Biology, Department of Experimental Medical Science, Lund University, BMC C12, 22184 Lund, Sweden; (J.W.); (A.-K.L.-C.); (G.W.-T.)
| | - Christina Wenglén
- AnaMar AB, Medicon Village, Scheeletorget 1, 22381 Lund, Sweden; (C.W.); (G.T.)
| | - Gunilla Westergren-Thorsson
- Lung Biology, Department of Experimental Medical Science, Lund University, BMC C12, 22184 Lund, Sweden; (J.W.); (A.-K.L.-C.); (G.W.-T.)
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12
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Diaz-Espinosa AM, Link PA, Sicard D, Jorba I, Tschumperlin DJ, Haak AJ. Dopamine D1 receptor stimulates cathepsin K-dependent degradation and resorption of collagen I in lung fibroblasts. J Cell Sci 2020; 133:jcs248278. [PMID: 33172983 PMCID: PMC7746663 DOI: 10.1242/jcs.248278] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 11/02/2020] [Indexed: 01/18/2023] Open
Abstract
Matrix resorption is essential to the clearance of the extracellular matrix (ECM) after normal wound healing. A disruption in these processes constitutes a main component of fibrotic diseases, characterized by excess deposition and diminished clearance of fibrillar ECM proteins, such as collagen type I. The mechanisms and stimuli regulating ECM resorption in the lung remain poorly understood. Recently, agonism of dopamine receptor D1 (DRD1), which is predominantly expressed on fibroblasts in the lung, has been shown to accelerate tissue repair and clearance of ECM following bleomycin injury in mice. Therefore, we investigated whether DRD1 receptor signaling promotes the degradation of collagen type I by lung fibroblasts. For cultured fibroblasts, we found that DRD1 agonism enhances extracellular cleavage, internalization and lysosomal degradation of collagen I mediated by cathepsin K, which results in reduced stiffness of cell-derived matrices, as measured by atomic force microscopy. In vivo agonism of DRD1 similarly enhanced fibrillar collagen degradation by fibroblasts, as assessed by tissue labeling with a collagen-hybridizing peptide. Together, these results implicate DRD1 agonism in fibroblast-mediated collagen clearance, suggesting an important role for this mechanism in fibrosis resolution.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Ana M Diaz-Espinosa
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Patrick A Link
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Delphine Sicard
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Ignasi Jorba
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Daniel J Tschumperlin
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Andrew J Haak
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
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13
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Kaiko GE, Chen F, Lai CW, Chiang IL, Perrigoue J, Stojmirović A, Li K, Muegge BD, Jain U, VanDussen KL, Goggins BJ, Keely S, Weaver J, Foster PS, Lawrence DA, Liu TC, Stappenbeck TS. PAI-1 augments mucosal damage in colitis. Sci Transl Med 2020; 11:11/482/eaat0852. [PMID: 30842312 DOI: 10.1126/scitranslmed.aat0852] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 10/10/2018] [Accepted: 02/12/2019] [Indexed: 12/13/2022]
Abstract
There is a major unmet clinical need to identify pathways in inflammatory bowel disease (IBD) to classify patient disease activity, stratify patients that will benefit from targeted therapies such as anti-tumor necrosis factor (TNF), and identify new therapeutic targets. In this study, we conducted global transcriptome analysis to identify IBD-related pathways using colon biopsies, which highlighted the coagulation gene pathway as one of the most enriched gene sets in patients with IBD. Using this gene-network analysis across 14 independent cohorts and 1800 intestinal biopsies, we found that, among the coagulation pathway genes, plasminogen activator inhibitor-1 (PAI-1) expression was highly enriched in active disease and in patients with IBD who did not respond to anti-TNF biologic therapy and that PAI-1 is a key link between the epithelium and inflammation. Functionally, PAI-1 and its direct target, the fibrinolytic protease tissue plasminogen activator (tPA), played an important role in regulating intestinal inflammation. Intestinal epithelial cells produced tPA, which was protective against chemical and mechanical-mediated colonic injury in mice. In contrast, PAI-1 exacerbated mucosal damage by blocking tPA-mediated cleavage and activation of anti-inflammatory TGF-β, whereas the inhibition of PAI-1 reduced both mucosal damage and inflammation. This study identifies an immune-coagulation gene axis in IBD where elevated PAI-1 may contribute to more aggressive disease.
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Affiliation(s)
- Gerard E Kaiko
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.,School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, NSW 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Feidi Chen
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Chin-Wen Lai
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - I-Ling Chiang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | | | | | - Katherine Li
- Janssen Research & Development LLC, Spring House, PA 19002, USA
| | - Brian D Muegge
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Umang Jain
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Kelli L VanDussen
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.,Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Cincinnati College of Medicine and the Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Bridie J Goggins
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, NSW 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Simon Keely
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, NSW 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Jessica Weaver
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, NSW 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Paul S Foster
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, NSW 2308, Australia.,Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Daniel A Lawrence
- Departments of Pathology and Internal Medicine, Division of Cardiovascular Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ta-Chiang Liu
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Thaddeus S Stappenbeck
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.
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14
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Zeng C, Kahlenberg JM, Gudjonsson JE. IL-17A Softens the Skin: Antifibrotic Properties of IL-17A in Systemic Sclerosis. J Invest Dermatol 2020; 140:13-14. [PMID: 31864428 DOI: 10.1016/j.jid.2019.07.678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 06/26/2019] [Accepted: 07/01/2019] [Indexed: 11/15/2022]
Abstract
IL-17A is abundant in scleroderma skin, but its pathologic role has remained unclear. In the Journal of Investigative Dermatology, Dufour et al. (2020) demonstrate a new role for IL-17A as an antifibrotic agent in scleroderma through modulation of keratinocyte responses to transforming growth factor-β and shifting of fibroblast responses from profibrotic to antifibrotic.
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Affiliation(s)
- Chang Zeng
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan
| | - J Michelle Kahlenberg
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
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15
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Coentro JQ, Pugliese E, Hanley G, Raghunath M, Zeugolis DI. Current and upcoming therapies to modulate skin scarring and fibrosis. Adv Drug Deliv Rev 2019; 146:37-59. [PMID: 30172924 DOI: 10.1016/j.addr.2018.08.009] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 07/08/2018] [Accepted: 08/26/2018] [Indexed: 12/12/2022]
Abstract
Skin is the largest organ of the human body. Being the interface between the body and the outer environment, makes it susceptible to physical injury. To maintain life, nature has endowed skin with a fast healing response that invariably ends in the formation of scar at the wounded dermal area. In many cases, skin remodelling may be impaired, leading to local hypertrophic scars or keloids. One should also consider that the scarring process is part of the wound healing response, which always starts with inflammation. Thus, scarring can also be induced in the dermis, in the absence of an actual wound, during chronic inflammatory processes. Considering the significant portion of the population that is subject to abnormal scarring, this review critically discusses the state-of-the-art and upcoming therapies in skin scarring and fibrosis.
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Affiliation(s)
- João Q Coentro
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland; Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland
| | - Eugenia Pugliese
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland; Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland
| | - Geoffrey Hanley
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland; Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland
| | - Michael Raghunath
- Center for Cell Biology and Tissue Engineering, Institute for Chemistry and Biotechnology (ICBT), Zurich University of Applied Sciences (ZHAW), Wädenswil, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland; Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI, Galway), Galway, Ireland.
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16
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Kanno Y. The Role of Fibrinolytic Regulators in Vascular Dysfunction of Systemic Sclerosis. Int J Mol Sci 2019; 20:ijms20030619. [PMID: 30709025 PMCID: PMC6387418 DOI: 10.3390/ijms20030619] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 02/08/2023] Open
Abstract
Systemic sclerosis (SSc) is a connective tissue disease of autoimmune origin characterized by vascular dysfunction and extensive fibrosis of the skin and visceral organs. Vascular dysfunction is caused by endothelial cell (EC) apoptosis, defective angiogenesis, defective vasculogenesis, endothelial-to-mesenchymal transition (EndoMT), and coagulation abnormalities, and exacerbates the disease. Fibrinolytic regulators, such as plasminogen (Plg), plasmin, α2-antiplasmin (α2AP), tissue-type plasminogen activator (tPA), urokinase-type plasminogen activator (uPA) and its receptor (uPAR), plasminogen activator inhibitor 1 (PAI-1), and angiostatin, are considered to play an important role in the maintenance of endothelial homeostasis, and are associated with the endothelial dysfunction of SSc. This review considers the roles of fibrinolytic factors in vascular dysfunction of SSc.
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Affiliation(s)
- Yosuke Kanno
- Department of Clinical Pathological Biochemistry, Faculty of Pharmaceutical Science, Doshisha Women's College of Liberal Arts, 97-1 Kodo Kyo-tanabe, Kyoto 610-0395, Japan.
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17
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Yue X, Yu X, Petersen F, Riemekasten G. Recent advances in mouse models for systemic sclerosis. Autoimmun Rev 2018; 17:1225-1234. [PMID: 30316997 DOI: 10.1016/j.autrev.2018.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 06/30/2018] [Indexed: 12/13/2022]
Abstract
SSc is a complex rheumatoid disease characterized by autoimmunity, fibrosis and vasculopathy. Mouse models provide powerful research tools for exploring the pathogenesis of the human diseases. Each mouse model can represent a specific way leading to the development of disease. Moreover, mouse models can be used to investigate the role of candidate molecule in the pathogenesis of disease. So far, more than twenty mouse models for SSc have been established and provide new insights in the understanding of the pathogenesis of SSc. In this review, we provide an overview on recent advances in the field of experimental SSc. We introduce novel mouse models generated in the recent years and discuss their relevance to the SSc pathogenesis. Moreover, we summarize and discuss recent findings in the pathogenesis of classical SSc mouse models.
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Affiliation(s)
- Xiaoyang Yue
- Priority Area Asthma & Allergy, Research Center Borstel, 23845 Borstel, Germany; Airway Research Center North (ARCN), Members of the German Center for Lung Research (DZL), Germany
| | - Xinhua Yu
- Priority Area Asthma & Allergy, Research Center Borstel, 23845 Borstel, Germany; Airway Research Center North (ARCN), Members of the German Center for Lung Research (DZL), Germany
| | - Frank Petersen
- Priority Area Asthma & Allergy, Research Center Borstel, 23845 Borstel, Germany; Airway Research Center North (ARCN), Members of the German Center for Lung Research (DZL), Germany
| | - Gabriela Riemekasten
- Airway Research Center North (ARCN), Members of the German Center for Lung Research (DZL), Germany; Department of Rheumatology, University of Lübeck, 23538 Lübeck, Germany.
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18
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Basement membranes in the cornea and other organs that commonly develop fibrosis. Cell Tissue Res 2018; 374:439-453. [PMID: 30284084 DOI: 10.1007/s00441-018-2934-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 09/20/2018] [Indexed: 12/19/2022]
Abstract
Basement membranes are thin connective tissue structures composed of organ-specific assemblages of collagens, laminins, proteoglycan-like perlecan, nidogens, and other components. Traditionally, basement membranes are thought of as structures which primarily function to anchor epithelial, endothelial, or parenchymal cells to underlying connective tissues. While this role is important, other functions such as the modulation of growth factors and cytokines that regulate cell proliferation, migration, differentiation, and fibrosis are equally important. An example of this is the critical role of both the epithelial basement membrane and Descemet's basement membrane in the cornea in modulating myofibroblast development and fibrosis, as well as myofibroblast apoptosis and the resolution of fibrosis. This article compares the ultrastructure and functions of key basement membranes in several organs to illustrate the variability and importance of these structures in organs that commonly develop fibrosis.
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19
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Pincha N, Hajam EY, Badarinath K, Batta SPR, Masudi T, Dey R, Andreasen P, Kawakami T, Samuel R, George R, Danda D, Jacob PM, Jamora C. PAI1 mediates fibroblast-mast cell interactions in skin fibrosis. J Clin Invest 2018; 128:1807-1819. [PMID: 29584619 DOI: 10.1172/jci99088] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 02/07/2018] [Indexed: 12/14/2022] Open
Abstract
Fibrosis is a prevalent pathological condition arising from the chronic activation of fibroblasts. This activation results from the extensive intercellular crosstalk mediated by both soluble factors and direct cell-cell connections. Prominent among these are the interactions of fibroblasts with immune cells, in which the fibroblast-mast cell connection, although acknowledged, is relatively unexplored. We have used a Tg mouse model of skin fibrosis, based on expression of the transcription factor Snail in the epidermis, to probe the mechanisms regulating mast cell activity and the contribution of these cells to this pathology. We have discovered that Snail-expressing keratinocytes secrete plasminogen activator inhibitor type 1 (PAI1), which functions as a chemotactic factor to increase mast cell infiltration into the skin. Moreover, we have determined that PAI1 upregulates intercellular adhesion molecule type 1 (ICAM1) expression on dermal fibroblasts, rendering them competent to bind to mast cells. This heterotypic cell-cell adhesion, also observed in the skin fibrotic disorder scleroderma, culminates in the reciprocal activation of both mast cells and fibroblasts, leading to the cascade of events that promote fibrogenesis. Thus, we have identified roles for PAI1 in the multifactorial program of fibrogenesis that expand its functional repertoire beyond its canonical role in plasmin-dependent processes.
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Affiliation(s)
- Neha Pincha
- IFOM-inStem Joint Research Laboratory, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India.,Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Edries Yousaf Hajam
- IFOM-inStem Joint Research Laboratory, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India.,Shanmugha Arts, Science, Technology and Research Academy (SASTRA) University, Thanjavur, Tamil Nadu, India
| | - Krithika Badarinath
- IFOM-inStem Joint Research Laboratory, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India.,National Centre for Biological Sciences (NCBS), GKVK post, Bangalore, Karnataka, India
| | - Surya Prakash Rao Batta
- IFOM-inStem Joint Research Laboratory, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
| | - Tafheem Masudi
- IFOM-inStem Joint Research Laboratory, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
| | - Rakesh Dey
- IFOM-inStem Joint Research Laboratory, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
| | - Peter Andreasen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Toshiaki Kawakami
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA.,Laboratory for Allergic Disease, RIKEN Center for Integrative Medical Sciences, Research Center for Allergy and Immunology (IMS-RCAI), Yokohama, Japan
| | - Rekha Samuel
- Department of Pathology, Center for Stem Cell Research
| | - Renu George
- Department of Dermatology, Venereology and Leprosy
| | | | | | - Colin Jamora
- IFOM-inStem Joint Research Laboratory, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
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20
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Early-Life Antibiotic Exposure Causes Intestinal Dysbiosis and Exacerbates Skin and Lung Pathology in Experimental Systemic Sclerosis. J Invest Dermatol 2017; 137:2316-2325. [PMID: 28757138 DOI: 10.1016/j.jid.2017.06.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 05/16/2017] [Accepted: 06/15/2017] [Indexed: 12/24/2022]
Abstract
Patients with systemic sclerosis (SSc) display altered intestinal microbiota. However, the influence of intestinal dysbiosis on the development of experimental SSc remains unknown. Topoisomerase I peptide-loaded dendritic cell immunization induces SSc-like disease, with progressive skin and lung fibrosis. Breeders were given streptomycin and pups continued to receive antibiotic (ATB) until endpoint (lifelongATB). Alternately, ATB was withdrawn (earlyATB) or initiated (adultATB) during adulthood. Topoisomerase I peptide-loaded dendritic cell (no ATB) immunization induced pronounced skin fibrosis, with increased matrix (Col1a1), profibrotic (Il13, Tweakr), and vascular function (Serpine1) gene expression. Remarkably, earlyATB exposure was sufficient to augment skin Col5a1 and Il13 expression, and inflammatory cell infiltration, which included IL-13+ cells, mononuclear phagocytes, and mast cells. Moreover, skin pathology exacerbation was also observed in lifelongATB and adultATB groups. Oral streptomycin administration induced intestinal dysbiosis, with exposure limited to early life (earlyATB) being sufficient to cause long-term modification of the microbiota and a shift toward increased Bacteroidetes/Firmicutes ratio. Finally, aggravated lung fibrosis and dysregulated pulmonary T-cell responses were observed in earlyATB and lifelongATB but not adultATB-exposed mice. Collectively, intestinal microbiota manipulation with streptomycin exacerbated pathology in two distinct sites, skin and lungs, with early life being a critical window to affect the course of SSc-like disease.
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21
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Liang Z, Li T, Jiang S, Xu J, Di W, Yang Z, Hu W, Yang Y. AMPK: a novel target for treating hepatic fibrosis. Oncotarget 2017; 8:62780-62792. [PMID: 28977988 PMCID: PMC5617548 DOI: 10.18632/oncotarget.19376] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 07/08/2017] [Indexed: 12/19/2022] Open
Abstract
Fibrosis is a common process of excessive extracellular matrix (ECM) accumulation following inflammatory injury. Fibrosis is involved in the pathogenesis of almost all liver diseases for which there is no effective treatment. 5'-AMP-activated protein kinase (AMPK) is a cellular energy sensor that can ameliorate the process of hepatic fibrogenesis. Given the existing evidence, we first introduce the basic background of AMPK and hepatic fibrosis and the actions of AMPK in hepatic fibrosis. Second, we discuss the three phases of hepatic fibrosis and potential drugs that target AMPK. Third, we analyze possible anti-fibrosis mechanisms and other benefits of AMPK on the liver. Finally, we summarize and briefly explain the current objections to targeting AMPK. This review may aid clinical and basic research on AMPK, which may be a novel drug candidate for hepatic fibrosis.
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Affiliation(s)
- Zhenxing Liang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Tian Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an 710069, China.,Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an 710032, China
| | - Shuai Jiang
- Department of Aerospace Medicine, The Fourth Military Medical University, Xi'an 710032, China
| | - Jing Xu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Wencheng Di
- Department of Cardiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Zhi Yang
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an 710032, China
| | - Wei Hu
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an 710032, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences, Northwest University, Xi'an 710069, China.,Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an 710032, China
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22
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Optimization of a murine and human tissue model to recapitulate dermal and pulmonary features of systemic sclerosis. PLoS One 2017. [PMID: 28651005 PMCID: PMC5484495 DOI: 10.1371/journal.pone.0179917] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The murine bleomycin (BLM)-induced fibrosis model is the most widely used in systemic sclerosis (SSc) studies. It has been reported that systemic delivery of BLM via continuous diffusion from subcutaneously implanted osmotic minipumps can cause fibrosis of the skin, lungs, and other internal organs. However, the mouse strain, dosage of BLM, administration period, and additional important features differ from one report to the next. In this study, by employing the pump model in C57BL/6J mice, we show a dose-dependent increase in lung fibrosis by day 28 and a transient increase in dermal thickness. Dermal thickness and the level of collagen in skin treated with high-dose BLM was significantly higher than in skin treated with low dose BLM or vehicle. A reduction in the thickness of the adipose layer was noted in both high and low dose groups at earlier time points suggesting that the loss of the fat layer precedes the onset of fibrosis. High-dose BLM also induced dermal fibrosis and increased expression of fibrosis-associated genes ex vivo in human skin, thus confirming and extending the in vivo findings, and demonstrating that a human organ culture model can be used to assess the effect of BLM on skin. In summary, our findings suggest that the BLM pump model is an attractive model to analyze the underlying mechanisms of fibrosis and test the efficacy of potential therapies. However, the choice of mouse strain, duration of BLM administration and dose must be carefully considered when using this model.
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23
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Mostmans Y, Cutolo M, Giddelo C, Decuman S, Melsens K, Declercq H, Vandecasteele E, De Keyser F, Distler O, Gutermuth J, Smith V. The role of endothelial cells in the vasculopathy of systemic sclerosis: A systematic review. Autoimmun Rev 2017; 16:774-786. [PMID: 28572048 DOI: 10.1016/j.autrev.2017.05.024] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 04/13/2017] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Systemic sclerosis (SSc) is an autoimmune connective tissue disorder characterized by fibroproliferative vasculopathy, immunological abnormalities and progressive fibrosis of multiple organs including the skin. In this study, all English speaking articles concerning the role of endothelial cells (ECs) in SSc vasculopathy and representing biomarkers are systematically reviewed and categorized according to endothelial cell (EC) (dys)function in SSc. METHODS A sensitive search on behalf of the EULAR study group on microcirculation in Rheumatic Diseases was developed in Pubmed, The Cochrane Library and Web of Science to identify articles on SSc vasculopathy and the role of ECs using the following Mesh terms: (systemic sclerosis OR scleroderma) AND pathogenesis AND (endothelial cells OR marker). All selected papers were read and discussed by two independent reviewers. The selection process was based on title, abstract and full text level. Additionally, both reviewers further searched the reference lists of the articles selected for reading on full text level for supplementary papers. These additional articles went through the same selection process. RESULTS In total 193 resulting articles were selected and the identified biomarkers were categorized according to description of EC (dys)function in SSc. The most representing and reliable biomarkers described by the selected articles were adhesion molecules for EC activation, anti-endothelial cell antibodies for EC apoptosis, vascular endothelial growth factor (VEGF), its receptor VEGFR-2 and endostatin for disturbed angiogenesis, endothelial progenitors cells for defective vasculogenesis, endothelin-1 for disturbed vascular tone control, Von Willebrand factor for coagulopathy and interleukin (IL)-33 for EC-immune system communication. Emerging, relatively new discovered biomarkers described in the selected articles, are VEGF165b, IL-17A and the adipocytokines. Finally, myofibroblasts involved in tissue fibrosis in SSc can derive from ECs or epithelial cells through a process known as endothelial-to-mesenchymal transition. CONCLUSION This systematic review emphasizes the growing evidence that SSc is primarily a vascular disease where EC dysfunction is present and prominent in different aspects of cell survival (activation and apoptosis), angiogenesis and vasculogenesis and where disturbed interactions between ECs and various other cells contribute to SSc vasculopathy.
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Affiliation(s)
- Y Mostmans
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Dermatology, Laarbeeklaan 101, 1090 Brussels, Belgium; Department of Immunology and Allergology (CIA) Centre Hospitalier Universitaire (CHU) Brugmann, Université Libre de Bruxelles (ULB), Van Gehuchtenplein 4, 1020 Brussels, Belgium.
| | - M Cutolo
- Research Laboratory and Academic Unit of Clinical Rheumatology, Department of Internal Medicine, University of Genova, Genova, Italy
| | - C Giddelo
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Dermatology, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - S Decuman
- Ghent University, Department of Internal Medicine, Ghent, Belgium
| | - K Melsens
- Ghent University, Department of Internal Medicine, Ghent, Belgium; Ghent University Hospital, Department of Rheumatology, Ghent, Belgium
| | - H Declercq
- Department of Basic Medical Sciences, Tissue Engineering and Biomaterials Group, Ghent University, Ghent, Belgium
| | - E Vandecasteele
- Department of Cardiology, Ghent University Hospital, Ghent, Belgium
| | - F De Keyser
- Ghent University, Department of Internal Medicine, Ghent, Belgium; Ghent University Hospital, Department of Rheumatology, Ghent, Belgium
| | - O Distler
- Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland
| | - J Gutermuth
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Dermatology, Laarbeeklaan 101, 1090 Brussels, Belgium
| | - V Smith
- Ghent University, Department of Internal Medicine, Ghent, Belgium; Ghent University Hospital, Department of Rheumatology, Ghent, Belgium
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