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Kreuter A, Moinzadeh P, Kinberger M, Horneff G, Worm M, Werner RN, Hammacher A, Krieg T, Wenzel J, Oeschger M, Weibel L, Müllegger R, Hunzelmann N. S2k guideline: Diagnosis and therapy of localized scleroderma. J Dtsch Dermatol Ges 2024; 22:605-620. [PMID: 38426689 DOI: 10.1111/ddg.15328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 03/02/2024]
Abstract
The updated S2k guideline deals with the diagnosis and therapy of localized scleroderma (LoS). LoS represents a spectrum of sclerotic skin diseases in which, depending on the subtype and localisation, structures such as adipose tissue, muscles, joints, and bones may also be affected. Involvement of internal organs or progression to systemic sclerosis does not occur. LoS can be classified into four main forms: limited, generalized, linear, and mixed forms, with some additional subtypes. For cases of limited skin involvement, the guideline primarily recommends therapy with topical corticosteroids. UV therapy can also be recommended. In subtypes with severe skin or musculoskeletal involvement, systemic therapy with methotrexate is recommended. During the active phase of the disease, systemic glucocorticosteroids can be used additionally. In cases of methotrexate and steroid refractory courses, contraindications, or intolerance, mycophenolate mofetil, mycophenolic acid, or abatacept can be considered as second-line systemic therapies. In the case of linear LoS, autologous adipose-derived stem cell transplantation can also be performed for correcting soft tissue defects.
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Affiliation(s)
- Alexander Kreuter
- Department of Dermatology, Venereology and Allergology, Helios St. Elisabeth Hospital Oberhausen, Oberhausen, Germany
- Department of Dermatology, Venereology and Allergology, Helios St. Johannes Hospital Duisburg, Duisburg, Germany
| | - Pia Moinzadeh
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
| | - Maria Kinberger
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine (dEBM), Berlin, Germany
| | - Gerd Horneff
- Department of General Pediatrics, Asklepios Hospital, St. Augustin, Germany
| | - Margitta Worm
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology, Berlin, Germany
| | - Ricardo N Werner
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine (dEBM), Berlin, Germany
| | | | - Thomas Krieg
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
| | - Jörg Wenzel
- Department of Dermatology and Allergology, University Bonn, Bonn, Germany
| | | | - Lisa Weibel
- University Children's Hospital Zurich, Zurich, Switzerland
| | - Robert Müllegger
- Department of Dermatology and Venereology, Landesklinikum Wiener Neustadt, Wiener Neustadt, Austria
| | - Nicolas Hunzelmann
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
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Kreuter A, Moinzadeh P, Kinberger M, Horneff G, Worm M, Werner RN, Hammacher A, Krieg T, Wenzel J, Oeschger M, Weibel L, Müllegger R, Hunzelmann N. S2k‐Leitlinie: Diagnostik und Therapie der zirkumskripten Sklerodermie. J Dtsch Dermatol Ges 2024; 22:605-621. [PMID: 38574014 DOI: 10.1111/ddg.15328_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 04/06/2024]
Abstract
ZusammenfassungDie vorliegende aktualisierte S2k‐Leitlinie befasst sich mit der Diagnostik und der Therapie der zirkumskripten Sklerodermie (ZS). Diese umfasst ein Spektrum sklerotischer Erkrankungen der Haut mit, je nach Subtyp und Lokalisation, möglicher Beteiligung von hautnahen Strukturen wie Fettgewebe, Muskulatur, Gelenke und Knochen. Ein Befall innerer Organe oder ein Übergang in eine systemische Sklerodermie treten nicht auf. Eingeteilt werden kann die ZS in die vier Hauptformen der limitierten, generalisierten, linearen und gemischten Form. Teilweise existieren weitere Unterformen. Bei limitiertem Hautbefall empfiehlt die Leitlinie primär eine Therapie mit topischen Kortikosteroiden. Eine UV‐Therapie kann ebenfalls sinnvoll sein. Bei Subtypen mit schwerem Hautbefall oder muskuloskelettalem Befall wird eine systemische Therapie mit Methotrexat empfohlen. In der aktiven Phase der Erkrankung können ergänzend systemische Glukokortikosteroide eingesetzt werden. Bei MTX‐ und Steroid‐refraktären Verläufen, Kontraindikation oder Unverträglichkeit sollten Mycophenolat‐Mofetil, Mycophenolsäure oder Abatacept als Systemtherapie der zweiten Wahl eingesetzt werden. Bei einer linearen ZS kann zudem eine autologe Fettstammzelltransplantation zur Korrektur von Weichteildefekten erfolgen.
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Affiliation(s)
- Alexander Kreuter
- Klinik für Dermatologie, Venerologie und Allergologie, Helios St. Elisabeth Hospital Oberhausen, Oberhausen, Deutschland
- Klinik für Dermatologie, Venerologie und Allergologie, Helios St. Johannes Hospital Duisburg, Duisburg, Deutschland
| | - Pia Moinzadeh
- Klinik und Poliklinik für Dermatologie und Venerologie, Uniklinik Köln, Köln, Deutschland
| | - Maria Kinberger
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Klinik für Dermatologie, Venerologie und Allergologie, Division of Evidence-Based Medicine (dEBM), Berlin, Deutschland
| | - Gerd Horneff
- Allgemeine Kinder- und Jugendmedizin, Asklepios Klinik St. Augustin, St. Augustin, Deutschland
| | - Margitta Worm
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Klinik für Dermatologie, Venerologie und Allergologie, Berlin, Deutschland
| | - Ricardo N Werner
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Klinik für Dermatologie, Venerologie und Allergologie, Division of Evidence-Based Medicine (dEBM), Berlin, Deutschland
| | | | - Thomas Krieg
- Klinik und Poliklinik für Dermatologie und Venerologie, Uniklinik Köln, Köln, Deutschland
| | - Jörg Wenzel
- Klinik und Poliklinik für Dermatologie und Allergologie, Universität Bonn, Bonn, Deutschland
| | | | - Lisa Weibel
- Universitäts-Kinderspital Zürich, Zürich, Schweiz
| | - Robert Müllegger
- Abteilung für Dermatologie und Venerologie am Landesklinikum Wiener Neustadt, Wiener Neustadt, Österreich
| | - Nicolas Hunzelmann
- Klinik und Poliklinik für Dermatologie und Venerologie, Uniklinik Köln, Köln, Deutschland
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Narayanan G, Halim A, Hu A, Avin KG, Lu T, Zehnder D, Hato T, Chen NX, Moe SM, Lim K. Molecular Phenotyping and Mechanisms of Myocardial Fibrosis in Advanced Chronic Kidney Disease. KIDNEY360 2023; 4:1562-1579. [PMID: 37858297 PMCID: PMC10695648 DOI: 10.34067/kid.0000000000000276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
Key Points Myocardial fibrosis in hearts from patients with CKD is characterized by increased trimeric tensile collagen type I and decreased elastic collagen type III compared with hearts from hypertensive or healthy donors, suggesting a unique fibrotic phenotype. Myocardial fibrosis in CKD is driven by alterations in extracellular matrix proteostasis, including dysregulation of metalloproteinases and cross-linking enzymes. CKD-associated mineral stressors uniquely induce a fibronectin-independent mechanism of fibrillogenesis characterized by formation of trimeric collagen compared with proinflammatory/fibrotic cytokines. Background Myocardial fibrosis is a major life-limiting problem in CKD. Despite this, the molecular phenotype and metabolism of collagen fibrillogenesis in fibrotic hearts of patients with advanced CKD have been largely unstudied. Methods We analyzed explanted human left ventricular (LV) heart tissues in a three-arm cross-sectional cohort study of deceased donor patients on hemodialysis (HD, n =18), hypertension with preserved renal function (HTN, n =8), and healthy controls (CON, n =17), ex vivo . RNA-seq and protein analysis was performed on human donor hearts and cardiac fibroblasts treated with mineral stressors (high phosphate and high calcium). Further mechanistic studies were performed using primary cardiac fibroblasts, in vitro treated with mineral stressors, proinflammatory and profibrotic cytokines. Results Of the 43 donor participants, there was no difference in age (P > 0.2), sex (P > 0.8), or body mass index (P > 0.1) between the groups. Hearts from the HD group had extensive fibrosis (P < 0.01). All LV tissues expressed only the trimeric form of collagen type I. HD hearts expressed increased collagen type I (P < 0.03), elevated collagen type I:III ratio (P < 0.05), and decreased MMP1 (P < 0.05) and MMP2 (P < 0.05). RNA-seq revealed no significant differential gene expression of extracellular matrix proteins of interest in HD hearts, but there was significant upregulation of LH2, periostin, α -SMA, and TGF-β 1 gene expression in mineral stressor–treated cardiac fibroblasts. Both mineral stressors (P < 0.009) and cytokines (P < 0.03) increased collagen type I:III ratio. Mineral stressors induced trimeric collagen type I, but cytokine treatment induced only dimeric collagen type I in cardiac fibroblasts. Mineral stressors downregulated fibronectin (P < 0.03) and MMP2 zymogen (P < 0.01) but did not significantly affect expression of periostin, MMP1, or cross-linking enzymes. TGF-β upregulated fibronectin (P < 0.01) and periostin (P < 0.02) only. Conclusions Myocardial fibrosis in advanced CKD hearts is characterized by increased trimeric collagen type I and dysregulated collagen metabolism, and is differentially regulated by components of uremia.
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Affiliation(s)
- Gayatri Narayanan
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
| | - Arvin Halim
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
| | - Alvin Hu
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
- Department of Medicine, Indiana University Health Ball Memorial Hospital, Indianapolis, Indiana
| | - Keith G. Avin
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
- Department of Physical Therapy, Indiana University School of Health and Human Sciences, Indiana University, Indianapolis, Indiana
| | - Tzongshi Lu
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Daniel Zehnder
- Department of Nephrology and Department of Acute Medicine, North Cumbria University Hospital NHS Trust, Carlisle, United Kingdom
| | - Takashi Hato
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
| | - Neal X. Chen
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
| | - Sharon M. Moe
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
| | - Kenneth Lim
- Division of Nephrology and Hypertension, Indiana University School of Medicine, Indianapolis, Indiana
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Bartosz M, Tworek M, Łapczyńska E, Tekielak A, Kochanowska J, Polak K, Bergler-Czop B. Utility of phototherapy in patients with systemic sclerosis: systematic review. Dermatol Ther 2022; 35:e15478. [PMID: 35357072 DOI: 10.1111/dth.15478] [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: 01/31/2022] [Revised: 03/08/2022] [Accepted: 03/29/2022] [Indexed: 11/30/2022]
Abstract
Phototherapy is a recommended treatment regimen for different scleroderma spectrum disorders, but so far it has been included neither by European nor by worldwide experts committee in recommendations for the treatment of systemic sclerosis (SSc). The aim of the study was to revisit the utility of dermatological phototherapy in patients with SSc. PubMed using medical subject headings was searched to identify studies evaluating response to dermatological phototherapy in SSc patients. Both UVA1 (340-400 nm) and PUVA (psoralen plus UVA) treatments were found to reduce skin thickening and increase skin elasticity, therefore allowing for the improvement of joint tension mobility, especially in hands. At least several papers showed efficacy of phototherapy in patients who remained non-responsive to previous immunosuppressive therapies. The most probable mechanisms of action of phototherapy in SSc include inhibition of T-cells and prevention from dermal fibrosis. Although most data on the efficacy of phototherapy come from small experimental studies and case reports, phototherapy based on UVA of wavelength manifests relatively mild spectrum of side effects and this should be considered as a treatment option for SSc with dominant cutaneous involvement. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Miziołek Bartosz
- Department of Dermatology, Medical University of Silesia, School of Medicine in Katowice, Poland.,Department of Internal Medicine and Rheumatology, Leszek Giec Upper-Silesian Medical Centre of the Silesian Medical University in Katowice, Poland
| | - Michał Tworek
- Students' Scientific Association at the Department of Dermatology, Medical University of Silesia, School of Medicine in Katowice, Poland
| | - Ewa Łapczyńska
- Students' Scientific Association at the Department of Dermatology, Medical University of Silesia, School of Medicine in Katowice, Poland
| | - Anna Tekielak
- Students' Scientific Association at the Department of Dermatology, Medical University of Silesia, School of Medicine in Katowice, Poland
| | - Joanna Kochanowska
- Students' Scientific Association at the Department of Dermatology, Medical University of Silesia, School of Medicine in Katowice, Poland
| | - Karina Polak
- Department of Dermatology, Medical University of Silesia, School of Medicine in Katowice, Poland
| | - Beata Bergler-Czop
- Department of Dermatology, Medical University of Silesia, School of Medicine in Katowice, Poland
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Chi Y, Chen Y, Jiang W, Huang W, Ouyang M, Liu L, Pan Y, Li J, Qu X, Liu H, Liu C, Deng L, Qin X, Xiang Y. Deficiency of Integrin β4 Results in Increased Lung Tissue Stiffness and Responds to Substrate Stiffness via Modulating RhoA Activity. Front Cell Dev Biol 2022; 10:845440. [PMID: 35309934 PMCID: PMC8926985 DOI: 10.3389/fcell.2022.845440] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/11/2022] [Indexed: 12/12/2022] Open
Abstract
The interaction between extracellular matrix (ECM) and epithelial cells plays a key role in lung development. Our studies found that mice with conditional integrin β4 (ITGB4) knockout presented lung dysplasia and increased stiffness of lung tissues. In accordance with our previous studies regarding the functions of ITGB4 in bronchial epithelial cells (BECs), we hypothesize that the decreased ITGB4 expression during embryonic stage leads to abnormal ECM remodeling and increased tissue stiffness, thus impairing BECs motility and compromising lung development. In this study, we examined lung tissue stiffness in normal and ITGB4 deficiency mice using Atomic Force Microscopy (AFM), and demonstrated that ITGB4 deficiency resulted in increased lung tissue stiffness. The examination of ECM components collagen, elastin, and lysyl oxidase (LOX) family showed that the expression of type VI collagen, elastin and LOXL4 were significantly elevated in the ITGB4-deficiency mice, compared with those in normal groups. Airway epithelial cell migration and proliferation capacities on normal and stiff substrates were evaluated through video-microscopy and flow cytometry. The morphology of the cytoskeleton was detected by laser confocal microscopy, and RhoA activities were determined by fluorescence resonance energy transfer (FRET) microscopy. The results showed that migration and proliferation of ITGB4 deficiency cells were noticeably inhibited, along decreased cytoskeleton stabilization, and hampered RhoA activity, especially for cells cultured on the stiff substrate. These results suggest that decreased ITGB4 expression results in increased lung tissue stiffness and impairs the adaptation of bronchial epithelial cells to substrate stiffness, which may be related to the occurrence of broncho pulmonary dysplasia.
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Affiliation(s)
- Yinxiu Chi
- School of Basic Medicine, Central South University, Changsha, China
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
- Longdong College, Qingyang, China
| | - Yu Chen
- School of Basic Medicine, Central South University, Changsha, China
| | - Wang Jiang
- School of Basic Medicine, Central South University, Changsha, China
| | - Wenjie Huang
- School of Basic Medicine, Central South University, Changsha, China
- Affiliated Liuzhou Maternity and Child Healthcare Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Mingxing Ouyang
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Lei Liu
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Yan Pan
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Jingjing Li
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Xiangping Qu
- School of Basic Medicine, Central South University, Changsha, China
| | - Huijun Liu
- School of Basic Medicine, Central South University, Changsha, China
| | - Chi Liu
- School of Basic Medicine, Central South University, Changsha, China
| | - Linhong Deng
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
| | - Xiaoqun Qin
- School of Basic Medicine, Central South University, Changsha, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
| | - Yang Xiang
- School of Basic Medicine, Central South University, Changsha, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
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Patzelt S, Pigors M, Steenbock H, Diel L, Boch K, Chakievska L, Künzel S, Busch H, Fähnrich A, Brinckmann J, Schmidt E. Increased Fibrosis in a Mouse Model of Anti-Laminin 332 Mucous Membrane Pemphigoid Remains Unaltered by Inhibition of Aldehyde Dehydrogenase. Front Immunol 2022; 12:812627. [PMID: 35197965 PMCID: PMC8858800 DOI: 10.3389/fimmu.2021.812627] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/31/2021] [Indexed: 12/30/2022] Open
Abstract
Mucous membrane pemphigoid (MMP) is an autoimmune blistering disease characterized by autoantibodies against the basal membrane zone of skin and surface-close epithelia and predominant mucosal lesions. The oral cavity and conjunctivae are most frequently affected, albeit clinical manifestations can also occur on the skin. MMP-associated lesions outside the oral cavity typically lead to scarring. Mechanisms underlying scarring are largely unknown in MMP and effective treatment options are limited. Herein, we assessed the collagen architecture in tissue samples of an antibody-transfer mouse model of anti-laminin-332 MMP. In MMP mice, increased collagen fibril density was observed in skin and conjunctival lesions compared to mice injected with normal rabbit IgG. The extracellular matrix of MMP skin samples also showed altered post-translational collagen cross-linking with increased levels of both lysine- and hydroxylysine-derived collagen crosslinks supporting the fibrotic phenotype in experimental MMP compared to control animals. In addition, we evaluated a potential anti-fibrotic therapy in experimental anti-laminin-332 MMP using disulfiram, an inhibitor of the aldehyde dehydrogenase (ALDH), which has been implicated in immune-mediated mucosal scarring. In addition, disulfiram also acts as a copper chelator that was shown to block lysyl oxidase activity, an enzyme involved in formation of collagen crosslinks. Topical use of disulfiram (300 μM in 2% [w/v] methocel) did not improve ocular lesions in experimental MMP over the 12-day treatment period in disulfiram-treated mice compared to vehicle-treated mice (n=8/group). Furthermore, C57BL6/J mice (n=8/group) were treated prophylactically with 200 mg/kg p.o. disulfiram or the solvent once daily over a period of 12 days. Systemic treatment did not show any reduction in the severity of oral and ocular lesions in MMP mice, albeit some improvement in skin lesions was observed in disulfiram- vs. vehicle-treated mice (p=0.052). No reduction in fibrosis was seen, as assessed by immunohistochemistry. Whilst blocking of ALDH failed to significantly ameliorate disease activity, our data provide new insight into fibrotic processes highlighting changes in the collagenous matrix and cross-linking patterns in IgG-mediated MMP.
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Affiliation(s)
- Sabrina Patzelt
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Manuela Pigors
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Heiko Steenbock
- Institute of Virology and Cell Biology, University of Lübeck, Lübeck, Germany
| | - Leonard Diel
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Katharina Boch
- Department of Dermatology, Allergology and Venerology, University of Lübeck, Lübeck, Germany
| | - Lenche Chakievska
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Sven Künzel
- Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - Hauke Busch
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany,Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Anke Fähnrich
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany,Institute for Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Jürgen Brinckmann
- Institute of Virology and Cell Biology, University of Lübeck, Lübeck, Germany,Department of Dermatology, Allergology and Venerology, University of Lübeck, Lübeck, Germany
| | - Enno Schmidt
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany,Department of Dermatology, Allergology and Venerology, University of Lübeck, Lübeck, Germany,*Correspondence: Enno Schmidt,
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Shetty SS, Sharma M, Kabekkodu SP, Kumar NA, Satyamoorthy K, Radhakrishnan R. Understanding the molecular mechanism associated with reversal of oral submucous fibrosis targeting hydroxylysine aldehyde-derived collagen cross-links. J Carcinog 2021; 20:9. [PMID: 34526855 PMCID: PMC8411980 DOI: 10.4103/jcar.jcar_24_20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/19/2021] [Accepted: 04/24/2021] [Indexed: 01/01/2023] Open
Abstract
Fibrosis is a pathological state characterized by excessive deposition of the extracellular matrix components leading to impaired tissue function in the affected organ. It results in scarring of the affected tissue akin to an over-healing wound as a consequence of chronic inflammation and repair in response to injury. Persistent trauma of susceptible oral mucosa due to habitual chewing of betel quid resulting in zealous healing of the mucosal tissue is one plausible explanation for the onset of oral submucous fibrosis (OSF). The irreversibility and resistance of collagen to degradation and its high potential to undergo malignant change are a major reason for morbidity in OSF. Hence, early diagnosis and timely treatment are crucial to prevent the progression of OSF to malignancy. This review focuses on the mechanistic insight into the role of collagen cross-links in advancing fibrosis and possible therapeutic targets that bring about a reversal of fibrosis. These options may be beneficial if attempted as a specific therapeutic modality in OSF as is in organ fibrosis. The upregulation of lysyl oxidase and lysyl hydroxylase has been shown to exhibit the higher levels of the hydroxylysine aldehyde-derived cross-links in fibrosis and tumor stroma promoting the tumor cell survival, resistance, and invasion. The in silico analysis highlights the potential drugs that may target the genes regulating collagen crosslinking.
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Affiliation(s)
- Smitha Sammith Shetty
- Department of Oral Pathology, Faculty of Dentistry, Melaka Manipal Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Mohit Sharma
- Department of Oral Pathology, Sudha Rustagi College of Dental Sciences and Research, Faridabad, Haryana, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka
| | - Nv Anil Kumar
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka
| | - Kapaettu Satyamoorthy
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka
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Fibroblast MMP14-Dependent Collagen Processing Is Necessary for Melanoma Growth. Cancers (Basel) 2021; 13:cancers13081984. [PMID: 33924099 PMCID: PMC8074311 DOI: 10.3390/cancers13081984] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Matrix metalloproteinases (MMPs) were considered as targets for the treatment of various cancers. However, initial trials using broad inhibitors to MMPs have failed, partly attributed to the contrasting functions of these proteases acting as tumor promoters and suppressors, among other reasons. Our data now suggest that specific inhibition of MMP14 might represent a more specific approach, as loss of this protease in fibroblasts resulted in reduced growth of grafted melanomas. Here, we found that deletion of MMP14 in fibroblasts generates a matrix-rich environment that reduces tumor vascularization and melanoma cell proliferation. In in vitro and ex vivo assays, we showed that the latter is mediated by stiffening of the tissue due to collagen accumulation. Additionally, in vivo, we show that independently of MMP14 deletion, a collagen-rich stiff matrix inhibits the growth of melanomas. Abstract Skin homeostasis results from balanced synthesis and degradation of the extracellular matrix in the dermis. Deletion of the proteolytic enzyme MMP14 in dermal fibroblasts (MMP14Sf−/−) leads to a fibrotic skin phenotype with the accumulation of collagen type I, resulting from impaired proteolysis. Here, we show that melanoma growth in these mouse fibrotic dermal samples was decreased, paralleled by reduced tumor cell proliferation and vessel density. Using atomic force microscopy, we found increased peritumoral matrix stiffness of early but not late melanomas in the absence of fibroblast-derived MMP14. However, total collagen levels were increased at late melanoma stages in MMP14Sf−/− mice compared to controls. In ex vivo invasion assays, melanoma cells formed smaller tumor islands in MMP14Sf−/− skin, indicating that MMP14-dependent matrix accumulation regulates tumor growth. In line with these data, in vitro melanoma cell growth was inhibited in high collagen 3D spheroids or stiff substrates. Most importantly, in vivo induction of fibrosis using bleomycin reduced melanoma tumor growth. In summary, we show that MMP14 expression in stromal fibroblasts regulates melanoma tumor progression by modifying the peritumoral matrix and point to collagen accumulation as a negative regulator of melanoma.
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Ghosh AK. Pharmacological activation of PPAR-γ: a potential therapy for skin fibrosis. Int J Dermatol 2020; 60:376-383. [PMID: 33377189 DOI: 10.1111/ijd.15388] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 11/23/2020] [Accepted: 12/01/2020] [Indexed: 12/28/2022]
Abstract
Skin fibrosis caused by excessive collagen synthesis and deposition in the dermis affects the quality of daily life of hundreds of thousands of people around the world. The skin quality, including its smoothness in young age and wrinkly during the aging process, depends largely on the levels of extracellular matrix proteins such as collagen in skin. As physiological levels of collagen are desirable for skin homeostasis, beauty, and its flexibility, too much collagen deposition in the skin is associated with tight hard skin, loss of adipose layer, and flexibility, the pathological manifestations of skin fibrosis in fibrotic diseases such as scleroderma. To understand the molecular basis of skin fibrosis and in search of its therapy, different cellular, molecular, epigenetic, and preclinical studies have been undertaken to control abnormal excessive synthesis and accumulation of matrix protein collagen. Over the last two decades, numerous phase 1 through 3 clinical trials have been conducted to test the safety and efficacy of a wide variety of compounds in amelioration of skin fibrosis and other pathologies in scleroderma, yet, no effective therapy for skin fibrosis is available. This article solely focuses on the role of a nuclear receptor and transcription factor, peroxisome proliferator-activated receptor-gamma (PPAR-γ), as an anti-skin fibrotic driving force and the potential therapeutic efficacies of PPAR-γ-specific ligands/agonists including antidiabetic drugs and other natural or semi-synthetic compounds derived from cannabis in amelioration of skin fibrosis in scleroderma. The underlying molecular basis of agonist-activated PPAR-γ-mediated suppression of profibrogenic signaling and skin fibrogenesis is also highlighted.
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Affiliation(s)
- Asish K Ghosh
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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10
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Collagen cross-linking mediated by lysyl hydroxylase 2: an enzymatic battlefield to combat fibrosis. Essays Biochem 2019; 63:377-387. [DOI: 10.1042/ebc20180051] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/26/2019] [Accepted: 07/02/2019] [Indexed: 12/12/2022]
Abstract
AbstractThe hallmark of fibrosis is an excessive accumulation of collagen, ultimately leading to organ failure. It has become evident that the deposited collagen also exhibits qualitative modifications. A marked modification is the increased cross-linking, leading to a stabilization of the collagen network and limiting fibrosis reversibility. Not only the level of cross-linking is increased, but also the composition of cross-linking is altered: an increase is seen in hydroxyallysine-derived cross-links at the expense of allysine cross-links. This results in irreversible fibrosis, as collagen cross-linked by hydroxyallysine is more difficult to degrade. Hydroxyallysine is derived from a hydroxylysine in the telopeptides of collagen. The expression of lysyl hydroxylase (LH) 2 (LH2), the enzyme responsible for the formation of telopeptidyl hydroxylysine, is universally up-regulated in fibrosis. It is expected that inhibition of this enzyme will lead to reversible fibrosis without interfering with the normal repair process. In this review, we discuss the molecular basis of collagen modifications and cross-linking, with an emphasis on LH2-mediated hydroxyallysine cross-links, and their implications for the pathogenesis and treatment of fibrosis.
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11
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Schilter H, Findlay AD, Perryman L, Yow TT, Moses J, Zahoor A, Turner CI, Deodhar M, Foot JS, Zhou W, Greco A, Joshi A, Rayner B, Townsend S, Buson A, Jarolimek W. The lysyl oxidase like 2/3 enzymatic inhibitor, PXS-5153A, reduces crosslinks and ameliorates fibrosis. J Cell Mol Med 2018; 23:1759-1770. [PMID: 30536539 PMCID: PMC6378217 DOI: 10.1111/jcmm.14074] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 11/08/2018] [Accepted: 11/08/2018] [Indexed: 12/13/2022] Open
Abstract
Fibrosis is characterized by the excessive deposition of extracellular matrix and crosslinked proteins, in particular collagen and elastin, leading to tissue stiffening and disrupted organ function. Lysyl oxidases are key players during this process, as they initiate collagen crosslinking through the oxidation of the ε-amino group of lysine or hydroxylysine on collagen side-chains, which subsequently dimerize to form immature, or trimerize to form mature, collagen crosslinks. The role of LOXL2 in fibrosis and cancer is well documented, however the specific enzymatic function of LOXL2 and LOXL3 during disease is less clear. Herein, we describe the development of PXS-5153A, a novel mechanism based, fast-acting, dual LOXL2/LOXL3 inhibitor, which was used to interrogate the role of these enzymes in models of collagen crosslinking and fibrosis. PXS-5153A dose-dependently reduced LOXL2-mediated collagen oxidation and collagen crosslinking in vitro. In two liver fibrosis models, carbon tetrachloride or streptozotocin/high fat diet-induced, PXS-5153A reduced disease severity and improved liver function by diminishing collagen content and collagen crosslinks. In myocardial infarction, PXS-5153A improved cardiac output. Taken together these results demonstrate that, due to their crucial role in collagen crosslinking, inhibition of the enzymatic activities of LOXL2/LOXL3 represents an innovative therapeutic approach for the treatment of fibrosis.
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Affiliation(s)
- Heidi Schilter
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Alison D Findlay
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Lara Perryman
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Tin T Yow
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Joshua Moses
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Amna Zahoor
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Craig I Turner
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Mandar Deodhar
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Jonathan S Foot
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Wenbin Zhou
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Angelique Greco
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Amar Joshi
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
| | - Benjamin Rayner
- Heart Research Institute, Sydney, NSW, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Sarah Townsend
- Centre for Liver Research, Institute of Immunology, National Institute for Health Research Liver Biomedical Research Unit, University Hospitals, Birmingham, UK.,Birmingham NHS Foundation Trust, University of Birmingham, Birmingham, UK
| | - Alberto Buson
- Drug Discovery department, Pharmaxis Ltd., Sydney, NSW, Australia
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12
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Leeming DJ, Willumsen N, Sand JMB, Holm Nielsen S, Dasgupta B, Brodmerkel C, Curran M, Bager CL, Karsdal MA. A serological marker of the N-terminal neoepitope generated during LOXL2 maturation is elevated in patients with cancer or idiopathic pulmonary fibrosis. Biochem Biophys Rep 2018; 17:38-43. [PMID: 30555938 PMCID: PMC6276730 DOI: 10.1016/j.bbrep.2018.11.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 11/01/2018] [Accepted: 11/10/2018] [Indexed: 01/26/2023] Open
Abstract
Objectives Lysyl oxidase like 2 (LOXL2) is associated with poor prognosis in idiopathic pulmonary disease (IPF) and cancer. We developed an Enzyme-linked immunosorbent assay (ELISA) targeting the LOXL2 neo-epitope generated through the release of the signal peptide during LOXL2 maturation. Design and methods An ELISA targeting the N-terminal site of the human LOXL2 was developed including technical optimization and validation steps. Serum LOXL2 was measured in patients with breast, colorectal, lung, ovarian, pancreatic and prostate cancer, melanoma, IPF and in healthy controls (n = 16). Results A technically robust and specific assay was developed. LOXL2 was detectable in serum from healthy controls and showed reactivity towards recombinant LOXL2. Compared to controls, LOXL2 levels were significantly (p < 0.001–0.05) elevated in serum from patients with breast, colerectal, lung, ovarian and pancreatic cancer (mean range: 49–84 ng/mL), but not in prostate cancer (mean: 36 ng/mL) and malignant melanoma patients (41 ng/mL). Serum LOXL2 was elevated in IPF patients compared to healthy controls (mean: 76.5 vs 46.8 ng/mL; p > 0.001) Conclusions A specific ELISA towards the N-terminal neo-epitope site in LOXL2 was developed which detected significantly elevated serum levels from patients with above-mentioned cancer types or IPF compared to healthy controls.
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Affiliation(s)
- D J Leeming
- Nordic Bioscience A/S, Biomarkers and Research, Herlev, Denmark
| | - N Willumsen
- Nordic Bioscience A/S, Biomarkers and Research, Herlev, Denmark
| | - J M B Sand
- Nordic Bioscience A/S, Biomarkers and Research, Herlev, Denmark
| | - S Holm Nielsen
- Nordic Bioscience A/S, Biomarkers and Research, Herlev, Denmark
| | - B Dasgupta
- Janssen Research and Development, LLC, Spring House, PA, USA
| | - C Brodmerkel
- Janssen Research and Development, LLC, Spring House, PA, USA
| | - M Curran
- Janssen Research and Development, LLC, Spring House, PA, USA
| | | | - M A Karsdal
- Nordic Bioscience A/S, Biomarkers and Research, Herlev, Denmark
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13
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Nyström A, Bruckner-Tuderman L. Matrix molecules and skin biology. Semin Cell Dev Biol 2018; 89:136-146. [PMID: 30076963 DOI: 10.1016/j.semcdb.2018.07.025] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/26/2018] [Accepted: 07/31/2018] [Indexed: 01/02/2023]
Abstract
An extracellular matrix (ECM) is a prerequisite for multicellular life. It is adapted to tissues and constantly undergoes changes to preserve microenvironmental homeostasis. The ECM acts as a structural scaffold that establishes tissue architecture and provides tensile strength. It has cell-instructive functions by serving as a reservoir and presenter of soluble agents, being directly signaling, integrating transmission of mechanical and biological cues, or serving as a co-factor potentiating signaling. The skin contains a highly developed, mechanically tough, but yet flexible ECM. The tissue-specific features of this ECM are largely attributed by minor ECM components. A large number of genetic and acquired ECM diseases with skin manifestations, provide an illustrative testament to the importance of correct assembly of the ECM for dermal homeostasis. Here, we will present the composition and features of the skin ECM during homeostasis and regeneration. We will discuss genetic and acquired ECM diseases affecting skin, and provide a short outlook to therapeutic strategies for them.
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Affiliation(s)
- Alexander Nyström
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany.
| | - Leena Bruckner-Tuderman
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany
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14
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Poh PSP, Schmauss V, McGovern JA, Schmauss D, Chhaya MP, Foehr P, Seeger M, Ntziachristos V, Hutmacher DW, van Griensven M, Schantz JT, Balmayor ER. Non-linear optical microscopy and histological analysis of collagen, elastin and lysyl oxidase expression in breast capsular contracture. Eur J Med Res 2018; 23:30. [PMID: 29866167 PMCID: PMC5987584 DOI: 10.1186/s40001-018-0322-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 05/09/2018] [Indexed: 02/08/2023] Open
Abstract
Background Capsular contracture is one of the most common complications in surgical interventions for aesthetic breast augmentation or post-mastectomy breast reconstruction involving the use of silicone prostheses. Although the precise cause of capsular contracture is yet unknown, the leading hypothesis is that it is caused by long-term unresolved foreign body reaction towards the silicone breast implant. To authors’ best knowledge, this is the first study that elucidates the presence of lysyl oxidase (LOX)—an enzyme that is involved in collagen and elastin crosslinking within fibrous capsules harvested from patients with severe capsular contracture. It was hypothesized that over-expression of LOX plays a role in the irreversible crosslinking of collagen and elastin which, in turn, stabilizes the fibrous proteins and contributes to the progression of capsular contracture. Methods Eight fibrous capsules were collected from patients undergoing capsulectomy procedure, biomechanical testing was performed for compressive Young’s moduli and evaluated for Type I and II collagen, elastin and LOX by means of non-linear optical microscopy and immunohistology techniques. Results Observations revealed the heterogeneity of tissue structure within and among the collected fibrous capsules. Regardless of the tissue structure, it has been shown that LOX expression was intensified at the implant-to-tissue interface. Conclusion Our results indicate the involvement of LOX in the initiation of fibrous capsule formation which ultimately contributes towards the progression of capsular contracture. Electronic supplementary material The online version of this article (10.1186/s40001-018-0322-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Patrina S P Poh
- Experimental Trauma Surgery, Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Verena Schmauss
- Department of Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jacqui A McGovern
- Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, Australia
| | - Daniel Schmauss
- Department of Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Mohit P Chhaya
- Department of Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.,Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, Australia
| | - Peter Foehr
- Department of Orthopaedics and Sports Orthopaedics, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Markus Seeger
- Chair for Biological Imaging, Technical University of Munich, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Vasilis Ntziachristos
- Chair for Biological Imaging, Technical University of Munich, Munich, Germany.,Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Dietmar W Hutmacher
- Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, Australia.,Institute for Advanced Study, Technical University of Munich, Garching, Germany
| | - Martijn van Griensven
- Experimental Trauma Surgery, Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jan-Thorsten Schantz
- Department of Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.,School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Elizabeth R Balmayor
- Experimental Trauma Surgery, Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
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15
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He C, Yang Z, Jin Y, Qi X, Chu J, Deng X. ADM Scaffolds Generate a Pro-regenerative Microenvironment During Full-Thickness Cutaneous Wound Healing Through M2 Macrophage Polarization via Lamtor1. Front Physiol 2018; 9:657. [PMID: 29915541 PMCID: PMC5994424 DOI: 10.3389/fphys.2018.00657] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/14/2018] [Indexed: 12/21/2022] Open
Abstract
Adult mammalian skin has a defective regenerative capacity following full-thickness cutaneous injury; this defect overshadows the complete physiological functions of the skin. Immune-mediated skin reconstruction driven by biological scaffolds is a recently developed innovative repair strategy to support regenerative wound healing. However, to date, little is known about how biological scaffolds orchestrate the immune response to promote regeneration. Here, using acellular dermal matrix (ADM) scaffolds, we discovered that the default pro-inflammatory response was altered in response to a pro-regenerative response characterized by specific M2 polarization. M2 macrophages subsequently produced a series of wound healing factors, including matrix metalloproteinases (Mmps), and growth factors which promoted cell proliferation, stabilized angiogenesis, and remodeled the extracellular matrix. Our investigations further revealed that the M2 polarization of macrophages arose from an ADM scaffold-derived amino acid sufficiency signal by collagen degradation via macrophage phagocytosis, which activated the acid-sensing pathway (v-ATPase, Lamtor1, and mTORC1). Lamtor1, the acid-sensing pathway-associated lysosomal adaptor protein was critical for inducing M2 polarization, while with the presence of extracellular interleukin 4 (IL4). Our results suggest that ADM scaffolds generate a pro-regenerative microenvironment during full-thickness cutaneous wound healing through M2 macrophage polarization via Lamtor1.
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Affiliation(s)
- Chengmin He
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Zhi Yang
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Ying Jin
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Xiaoyang Qi
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Jin Chu
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Xiaoyuan Deng
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
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16
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Mariotti M, Leinisch F, Leeming DJ, Svensson B, Davies MJ, Hägglund P. Mass-Spectrometry-Based Identification of Cross-Links in Proteins Exposed to Photo-Oxidation and Peroxyl Radicals Using 18O Labeling and Optimized Tandem Mass Spectrometry Fragmentation. J Proteome Res 2018; 17:2017-2027. [DOI: 10.1021/acs.jproteome.7b00881] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Michele Mariotti
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 224, Kongens Lyngby, DK 2800 Denmark
| | - Fabian Leinisch
- Department of Biomedical Sciences, University of Copenhagen, Nørregade 10, Copenhagen, DK-1017 Denmark
| | | | - Birte Svensson
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 224, Kongens Lyngby, DK 2800 Denmark
| | - Michael J. Davies
- Department of Biomedical Sciences, University of Copenhagen, Nørregade 10, Copenhagen, DK-1017 Denmark
| | - Per Hägglund
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 224, Kongens Lyngby, DK 2800 Denmark
- Department of Biomedical Sciences, University of Copenhagen, Nørregade 10, Copenhagen, DK-1017 Denmark
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17
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Schulz JN, Plomann M, Sengle G, Gullberg D, Krieg T, Eckes B. New developments on skin fibrosis - Essential signals emanating from the extracellular matrix for the control of myofibroblasts. Matrix Biol 2018; 68-69:522-532. [PMID: 29408278 DOI: 10.1016/j.matbio.2018.01.025] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/29/2018] [Accepted: 01/29/2018] [Indexed: 02/06/2023]
Abstract
Many different diseases are associated with fibrosis of the skin. The clinical symptoms can vary considerably with a broad range from isolated small areas to the involvement of the entire integument. Fibrosis is triggered by a multitude of different stimuli leading to activation of the immune and vascular system that then initiate fibroblast activation and formation of matrix depositing and remodeling myofibroblasts. Ultimately, myofibroblasts deposit excessive amounts of extracellular matrix with a pathological architecture and alterations in growth factor binding and biomechanical properties, which culminates in skin hardening and loss of mobility. Treatment depends certainly on the specific type and cause of the disease, for the autoimmune driven localized and systemic scleroderma therapeutic options are still limited, but recent research has pointed out diverse molecular targets and mechanisms that can be exploited for the development of novel antifibrotic therapy.
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Affiliation(s)
| | - Markus Plomann
- Center for Biochemistry, University of Cologne, Medical Faculty, Cologne, Germany
| | - Gerhard Sengle
- Center for Biochemistry, University of Cologne, Medical Faculty, Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Donald Gullberg
- Department of Biomedicine, Centre for Cancer Biomarkers (CCBIO), University of Bergen, Bergen, Norway
| | - Thomas Krieg
- Department of Dermatology, University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany; Translational Matrix Biology, University of Cologne, Medical Faculty, Cologne, Germany; Cluster of Excellence in Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Beate Eckes
- Department of Dermatology, University of Cologne, Cologne, Germany; Translational Matrix Biology, University of Cologne, Medical Faculty, Cologne, Germany.
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18
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Analysis of Ultraviolet Radiation Wavelengths Causing Hardening and Reduced Elasticity of Collagen Gels In Vitro. COSMETICS 2018. [DOI: 10.3390/cosmetics5010014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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19
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Abstract
Intratumoral fibrosis results from the deposition of a cross-linked collagen matrix by cancer-associated fibroblasts (CAFs). This type of fibrosis has been shown to exert mechanical forces and create a biochemical milieu that, together, shape intratumoral immunity and influence tumor cell metastatic behavior. In this Review, we present recent evidence that CAFs and tumor cells are regulated by provisional matrix molecules, that metastasis results from a change in the type of stromal collagen cross-link, and that fibrosis and inflammation perpetuate each other through proteolytic and chemotactic mediators released into the tumor stroma. We also discuss aspects of the emerging biology that have potential therapeutic value.
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Affiliation(s)
- Mitsuo Yamauchi
- Oral and Craniofacial Health Sciences, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Thomas H Barker
- Department of Biomedical Engineering, School of Engineering and Applied Sciences and School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Don L Gibbons
- Department of Thoracic/Head and Neck Medical Oncology and.,Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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20
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Eckes B, Wang F, Moinzadeh P, Hunzelmann N, Krieg T. Pathophysiological Mechanisms in Sclerosing Skin Diseases. Front Med (Lausanne) 2017; 4:120. [PMID: 28868289 PMCID: PMC5563304 DOI: 10.3389/fmed.2017.00120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/12/2017] [Indexed: 12/19/2022] Open
Abstract
Sclerosing skin diseases represent a large number of distinct disease entities, which include systemic sclerosis, localized scleroderma, and scleredema adultorum. These pathologies have a common clinical appearance and share histological features. However, the specific interplay between cytokines and growth factors, which activate different mesenchymal cell populations and production of different extracellular matrix components, determines the biomechanical properties of the skin and the clinical features of each disease. A better understanding of the mechanisms underlying these events is prerequisite for developing novel targeted therapeutic approaches.
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Affiliation(s)
- Beate Eckes
- Department of Dermatology, University of Cologne, Cologne, Germany
| | - Fang Wang
- Department of Dermatology, University of Cologne, Cologne, Germany
| | - Pia Moinzadeh
- Department of Dermatology, University of Cologne, Cologne, Germany
| | | | - Thomas Krieg
- Department of Dermatology, University of Cologne, Cologne, Germany.,Center for Molecular Medicine (CMMC), Cologne, Germany.,Cluster of Excellence in Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany
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21
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Cai L, Xiong X, Kong X, Xie J. The Role of the Lysyl Oxidases in Tissue Repair and Remodeling: A Concise Review. Tissue Eng Regen Med 2017; 14:15-30. [PMID: 30603458 DOI: 10.1007/s13770-016-0007-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 04/01/2016] [Accepted: 04/17/2016] [Indexed: 02/05/2023] Open
Abstract
Tissue injury provokes a series of events containing inflammation, new tissue formation and tissue remodeling which are regulated by the spatially and temporally coordinated organization. It is an evolutionarily conserved, multi-cellular, multi-molecular process via complex signalling network. Tissue injury disorders present grievous clinical problems and are likely to increase since they are generally associated with the prevailing diseases such as diabetes, hypertension and obesity. Although these dynamic responses vary not only for the different types of trauma but also for the different organs, a balancing act between the tissue degradation and tissue synthesis is the same. In this process, the degradation of old extracellular matrix (ECM) elements and new ones' synthesis and deposition play an essential role, especially collagens. Lysyl oxidase (LOX) and four lysyl oxidase-like proteins are a group of enzymes capable of catalyzing cross-linking reaction of collagen and elastin, thus initiating the formation of covalent cross-links that insolubilize ECM proteins. In this way, LOX facilitates ECM stabilization through ECM formation, development, maturation and remodeling. This ability determines its potential role in tissue repair and regeneration. In this review, based on the current in vitro, animal and human in vivo studies which have shown the significant role of the LOXs in tissue repair, e.g., tendon regeneration, ligament healing, cutaneous wound healing, and cartilage remodeling, we focused on the role of the LOXs in inflammation phase, proliferation phase, and tissue remodeling phase of the repair process. By summarizing its healing role, we hope to shed light on the understanding of its potential in tissue repair and provide up to date therapeutic strategies towards related injuries.
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Affiliation(s)
- Linyi Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
| | - Xin Xiong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
| | - Xiangli Kong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
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22
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Strange AP, Aguayo S, Ahmed T, Mordan N, Stratton R, Porter SR, Parekh S, Bozec L. Quantitative nanohistological investigation of scleroderma: an atomic force microscopy-based approach to disease characterization. Int J Nanomedicine 2017; 12:411-420. [PMID: 28138238 PMCID: PMC5238774 DOI: 10.2147/ijn.s118690] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Scleroderma (or systemic sclerosis, SSc) is a disease caused by excess crosslinking of collagen. The skin stiffens and becomes painful, while internally, organ function can be compromised by the less elastic collagen. Diagnosis of SSc is often only possible in advanced cases by which treatment time is limited. A more detailed analysis of SSc may provide better future treatment options and information of disease progression. Recently, the histological stain picrosirius red showing collagen register has been combined with atomic force microscopy (AFM) to study SSc. Skin from healthy individuals and SSc patients was biopsied, stained and studied using AFM. By investigating the crosslinking of collagen at a smaller hierarchical stage, the effects of SSc were more pronounced. Changes in morphology and Young’s elastic modulus were observed and quantified; giving rise to a novel technique, we have termed “quantitative nanohistology”. An increase in nanoscale stiffness in the collagen for SSc compared with healthy individuals was seen by a significant increase in the Young’s modulus profile for the collagen. These markers of stiffer collagen in SSc are similar to the symptoms experienced by patients, giving additional hope that in the future, nanohistology using AFM can be readily applied as a clinical tool, providing detailed information of the state of collagen.
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Affiliation(s)
- Adam P Strange
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute
| | - Sebastian Aguayo
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute
| | - Tarek Ahmed
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute
| | - Nicola Mordan
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute
| | - Richard Stratton
- Centre for Rheumatology and Connective Tissue Diseases, Royal Free Hospital, UCL Medical School
| | | | - Susan Parekh
- Department of Pediatrics, UCL Eastman Dental Institute, London, UK
| | - Laurent Bozec
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute
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23
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Kreuter A, Krieg T, Worm M, Wenzel J, Moinzadeh P, Kuhn A, Aberer E, Scharffetter-Kochanek K, Horneff G, Reil E, Weberschock T, Hunzelmann N. German guidelines for the diagnosis and therapy of localized scleroderma. J Dtsch Dermatol Ges 2016; 14:199-216. [PMID: 26819124 DOI: 10.1111/ddg.12724] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Localized scleroderma designates a heterogeneous group of sclerotic skin disorders. Depending on the subtype, severity, and site affected, adjacent structures such as adipose tissue, muscles, joints, and bones may be involved. This is an update of the existing German AWMF (Association of the Scientific Medical Societies in Germany) guidelines (classification: S2k). These guidelines provide an overview of the definition, epidemiology, classification, pathogenesis, laboratory workup, histopathology, clinical scoring systems, as well as imaging and device-based workup of localized scleroderma. Moreover, consensus-based recommendations are given on the management of localized scleroderma depending on its clinical subtype. Treatment recommendations are presented in a therapeutic algorithm. No financial support was given by any pharmaceutical company. The guidelines are valid until July 2019.
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Affiliation(s)
- Alexander Kreuter
- Department of Dermatology, Venereology, and Allergology, HELIOS St. Elisabeth Hospital Oberhausen, Oberhausen, Germany
| | - Thomas Krieg
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
| | - Margitta Worm
- Department of Dermatology, Venereology, and Allergology, Charité - University Medical Center Berlin, Berlin, Germany
| | - Jörg Wenzel
- Department of Dermatology and Allergology, University Hospital Bonn, Bonn, Germany
| | - Pia Moinzadeh
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
| | - Annegret Kuhn
- Interdisciplinary Center for Clinical Studies (IZKS), University Medical Center Mainz, Mainz, Germany
| | - Elisabeth Aberer
- Department of Dermatology and Venereology, University Hospital Graz, Graz, Austria
| | | | - Gerd Horneff
- Department of General Pediatrics, Asklepios Hospital, St. Augustin, Germany
| | - Emma Reil
- Emma Reil, Scleroderma Support Group, Heilbronn, Germany
| | - Tobias Weberschock
- Department of Dermatology, Venereology, und Allergology, University Hospital Frankfurt and Work Group EbM Frankfurt, Institute for General Medicine, Johann Wolfgang Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Nicolas Hunzelmann
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
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24
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Abstract
Systemic and localized scleroderma are difficult to manage diseases with no accepted gold standard of therapy to date. Phototherapeutic modalities for scleroderma show promise. A PubMed search of information on phototherapy for scleroderma was conducted. The information was classified into effects on pathogenesis and clinical outcomes. Studies on photopheresis were excluded. There were no randomized, double-blind, placebo-controlled studies, and only three controlled studies. The vast majority of identified studies evaluated ultraviolet A1 (UVA1) phototherapy. More rigorous studies are needed to evaluate phototherapy in the treatment of scleroderma. Based on the limited studies available, 20-50 J/cm2 of UVA1 therapy 3-4 times a week for 30 treatments is recommended.
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Affiliation(s)
- John Hassani
- Department of Cutaneous Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
| | - Steven R Feldman
- Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
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25
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Zigrino P, Brinckmann J, Niehoff A, Lu Y, Giebeler N, Eckes B, Kadler KE, Mauch C. Fibroblast-Derived MMP-14 Regulates Collagen Homeostasis in Adult Skin. J Invest Dermatol 2016; 136:1575-1583. [PMID: 27066886 PMCID: PMC4946792 DOI: 10.1016/j.jid.2016.03.036] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/21/2016] [Accepted: 03/22/2016] [Indexed: 11/18/2022]
Abstract
Proteolytic activities in the extracellular matrix by the matrix metalloproteinase (MMP)-14 have been implicated in the remodeling of collagenous proteins during development. To analyze the function of fibroblast-derived MMP-14 in adult skin homeostasis, we generated mice with inducible deletion of MMP-14 in the dermal fibroblast (MMP-14Sf–/–). These mice are smaller and display a fibrosis-like phenotype in the skin. The skin of these mice showed increased stiffness and tensile strength but no altered collagen cross-links. In vivo, we measured a significantly increased amount of collagen type I accumulated in the skin of MMP-14Sf–/– mice without an increase in collagen fibril diameters. However, bleomycin-induced fibrosis in skin proceeded in a comparable manner in MMP-14Sf+/+ and MMP-14Sf–/– mice, but resolution over time was impaired in MMP-14Sf–/– mice. Increased accumulation of collagen type I was detected in MMP-14Sf–/– fibroblasts in culture without significant enhancement of collagen de novo synthesis. This points to a degradative but not synthetic phenotype. In support of this, MMP-14Sf–/– fibroblasts lost their ability to process fibrillar collagen type I and to activate proMMP-2. Taken together, these data indicate that MMP-14 expression in fibroblasts plays a crucial role in collagen remodeling in adult skin and largely contributes to dermal homeostasis underlying its pathogenic role in fibrotic skin disease.
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Affiliation(s)
- Paola Zigrino
- Department of Dermatology and Venerology, University of Cologne, Cologne, Germany.
| | - Jürgen Brinckmann
- Department of Dermatology, University of Lübeck, Lübeck, Germany; Institute of Virology and Cell Biology, University of Lübeck, Lübeck, Germany
| | - Anja Niehoff
- Institute of Biomechanics and Orthopaedics, German Sport University and Cologne Center for Musculoskeletal Biomechanics, University of Cologne, Cologne, Germany
| | - Yinhui Lu
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Nives Giebeler
- Department of Dermatology and Venerology, University of Cologne, Cologne, Germany
| | - Beate Eckes
- Department of Dermatology and Venerology, University of Cologne, Cologne, Germany
| | - Karl E Kadler
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Cornelia Mauch
- Department of Dermatology and Venerology, University of Cologne, Cologne, Germany
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26
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Kreuter A, Krieg T, Worm M, Wenzel J, Moinzadeh P, Kuhn A, Aberer E, Scharffetter-Kochanek K, Horneff G, Reil E, Weberschock T, Hunzelmann N. Deutsche Leitlinie zur Diagnostik und Therapie der zirkumskripten Sklerodermie. J Dtsch Dermatol Ges 2016. [DOI: 10.1111/ddg.130_12724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander Kreuter
- Klinik für Dermatologie; Venerologie und Allergologie; HELIOS St. Elisabeth Hospital Oberhausen
| | - Thomas Krieg
- Klinik und Poliklinik für Dermatologie und Venerologie; Uniklinik Köln
| | - Margitta Worm
- Klinik für Dermatologie; Venerologie und Allergologie; Charité - Universitätsmedizin; Berlin
| | - Jörg Wenzel
- Klinik und Poliklinik für Dermatologie und Allergologie; Universität Bonn
| | - Pia Moinzadeh
- Klinik und Poliklinik für Dermatologie und Venerologie; Uniklinik Köln
| | - Annegret Kuhn
- Interdisziplinäres Zentrum Klinische Studien (IZKS); Universitätsmedizin Mainz
| | - Elisabeth Aberer
- Universitätsklinik für Dermatologie und Venerologie; Medizinische Universität Graz
| | | | - Gerd Horneff
- Allgemeine Kinder- und Jugendmedizin; Asklepios Klinik; St. Augustin
| | - Emma Reil
- Emma Reil; Sklerodermie Selbsthilfe e.V.; Heilbronn
| | - Tobias Weberschock
- Klinik für Dermatologie; Venerologie und Allergologie; Universitätsklinikum Frankfurt und Arbeitsgruppe EbM Frankfurt; Institut für Allgemeinmedizin; Johann Wolfgang Goethe-Universität; Frankfurt am Main
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27
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Knipper JA, Willenborg S, Brinckmann J, Bloch W, Maaß T, Wagener R, Krieg T, Sutherland T, Munitz A, Rothenberg ME, Niehoff A, Richardson R, Hammerschmidt M, Allen JE, Eming SA. Interleukin-4 Receptor α Signaling in Myeloid Cells Controls Collagen Fibril Assembly in Skin Repair. Immunity 2015; 43:803-16. [PMID: 26474656 PMCID: PMC4681399 DOI: 10.1016/j.immuni.2015.09.005] [Citation(s) in RCA: 231] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 02/11/2015] [Accepted: 09/17/2015] [Indexed: 10/22/2022]
Abstract
Activation of the immune response during injury is a critical early event that determines whether the outcome of tissue restoration is regeneration or replacement of the damaged tissue with a scar. The mechanisms by which immune signals control these fundamentally different regenerative pathways are largely unknown. We have demonstrated that, during skin repair in mice, interleukin-4 receptor α (IL-4Rα)-dependent macrophage activation controlled collagen fibril assembly and that this process was important for effective repair while having adverse pro-fibrotic effects. We identified Relm-α as one important player in the pathway from IL-4Rα signaling in macrophages to the induction of lysyl hydroxylase 2 (LH2), an enzyme that directs persistent pro-fibrotic collagen cross-links, in fibroblasts. Notably, Relm-β induced LH2 in human fibroblasts, and expression of both factors was increased in lipodermatosclerosis, a condition of excessive human skin fibrosis. Collectively, our findings provide mechanistic insights into the link between type 2 immunity and initiation of pro-fibrotic pathways.
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Affiliation(s)
- Johanna A Knipper
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany
| | | | - Jürgen Brinckmann
- Department of Dermatology and Institute of Virology and Cell Biology, University of Lübeck, 23562 Lübeck, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, 50933 Cologne, Germany
| | - Tobias Maaß
- Department of Biochemistry, University of Cologne, 50937 Cologne, Germany
| | - Raimund Wagener
- Department of Biochemistry, University of Cologne, 50937 Cologne, Germany
| | - Thomas Krieg
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, 50674 Cologne, Germany
| | - Tara Sutherland
- Institute of Immunology and Infection Research, Centre for Immunity, Infection & Evolution, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, UK
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, The Sackler School of Medicine, The Tel-Aviv University, Ramat Aviv 69978, Israel
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229-3039, USA
| | - Anja Niehoff
- Institute of Biomechanics & Orthopedics, German Sport University Cologne, 50933 Cologne, Germany; Cologne Center for Musculoskeletal Biomechanics, University of Cologne, 50931 Cologne, Germany
| | - Rebecca Richardson
- Institute of Developmental Biology, University of Cologne, 50674 Cologne, Germany
| | - Matthias Hammerschmidt
- Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, 50674 Cologne, Germany; Institute of Developmental Biology, University of Cologne, 50674 Cologne, Germany
| | - Judith E Allen
- Institute of Immunology and Infection Research, Centre for Immunity, Infection & Evolution, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, UK
| | - Sabine A Eming
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, 50674 Cologne, Germany.
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28
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Karsdal MA, Manon-Jensen T, Genovese F, Kristensen JH, Nielsen MJ, Sand JMB, Hansen NUB, Bay-Jensen AC, Bager CL, Krag A, Blanchard A, Krarup H, Leeming DJ, Schuppan D. Novel insights into the function and dynamics of extracellular matrix in liver fibrosis. Am J Physiol Gastrointest Liver Physiol 2015; 308:G807-30. [PMID: 25767261 PMCID: PMC4437019 DOI: 10.1152/ajpgi.00447.2014] [Citation(s) in RCA: 179] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 03/04/2015] [Indexed: 02/06/2023]
Abstract
Emerging evidence suggests that altered components and posttranslational modifications of proteins in the extracellular matrix (ECM) may both initiate and drive disease progression. The ECM is a complex grid consisting of multiple proteins, most of which play a vital role in containing the essential information needed for maintenance of a sophisticated structure anchoring the cells and sustaining normal function of tissues. Therefore, the matrix itself may be considered as a paracrine/endocrine entity, with more complex functions than previously appreciated. The aims of this review are to 1) explore key structural and functional components of the ECM as exemplified by monogenetic disorders leading to severe pathologies, 2) discuss selected pathological posttranslational modifications of ECM proteins resulting in altered functional (signaling) properties from the original structural proteins, and 3) discuss how these findings support the novel concept that an increasing number of components of the ECM harbor signaling functions that can modulate fibrotic liver disease. The ECM entails functions in addition to anchoring cells and modulating their migratory behavior. Key ECM components and their posttranslational modifications often harbor multiple domains with different signaling potential, in particular when modified during inflammation or wound healing. This signaling by the ECM should be considered a paracrine/endocrine function, as it affects cell phenotype, function, fate, and finally tissue homeostasis. These properties should be exploited to establish novel biochemical markers and antifibrotic treatment strategies for liver fibrosis as well as other fibrotic diseases.
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Affiliation(s)
- Morten A. Karsdal
- 1Nordic Bioscience A/S, Herlev Hovedgade, Herlev, Denmark; ,2University of Southern Denmark, SDU, Odense, Denmark;
| | | | | | | | | | | | | | | | | | - Aleksander Krag
- 3Department of Gastroenterology and Hepatology, Odense University Hospital, University of Southern Denmark, Odense, Denmark;
| | - Andy Blanchard
- 4GlaxoSmithKline, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, United Kingdom;
| | - Henrik Krarup
- 5Section of Molecular Biology, Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark;
| | | | - Detlef Schuppan
- 6Institute of Translational Immunology and Research Center for Immunotherapy, University of Mainz Medical Center, Mainz, Germany; ,7Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
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29
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Kristensen JH, Karsdal MA, Genovese F, Johnson S, Svensson B, Jacobsen S, Hägglund P, Leeming DJ. The Role of Extracellular Matrix Quality in Pulmonary Fibrosis. Respiration 2014; 88:487-99. [DOI: 10.1159/000368163] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 08/25/2014] [Indexed: 11/19/2022] Open
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30
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Park SY, Park JY, Kim CH, Kang SU, Kim JH, Bark KM, Kim TH, Shin SC, Kang HY. Effects of Xanthium stramarium and Psoralea corylifolia Extracts Combined with UVA1 Irradiation on the Cell Proliferation and TGF-β1 Expression of Keloid Fibroblasts. Ann Dermatol 2013; 25:304-9. [PMID: 24003272 PMCID: PMC3756194 DOI: 10.5021/ad.2013.25.3.304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 05/03/2012] [Accepted: 06/22/2012] [Indexed: 01/20/2023] Open
Abstract
Background Xanthium stramarium (XAS) and Psoralea corylifolia (PSC), phototoxic oriental medicinal plants, has been used in traditional medicines in Asian countries. Objective The effects of highly purified XAS or PSC extract combined with ultraviolet A1 (UVA1) irradiation on cell proliferation and transforming growth factor-beta1 (TGF-β1) expression of the keloid fibroblast were being investigated to define potential therapeutic uses for keloid treatments. Methods The keloid fibroblasts were treated with XAS or PSC alone or in the combination with UVA1 irradiation. The cell viability, apoptosis, and expression of TGF-β1 and collagen I were investigated. Results XAS and PSC in combination with UVA1 irradiation suppressed cell proliferation and induced apoptosis of keloid fibroblasts. Furthermore, the XAS and PSC in combination with UVA1 irradiation inhibited TGF-β1 expression and collagen synthesis in keloid fibroblasts. Conclusion These findings may open up the possibility of clinically used XAS or PSC in combination with UVA1 irradiation for keloid treatments.
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Affiliation(s)
- Sun Yi Park
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
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31
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McKleroy W, Lee TH, Atabai K. Always cleave up your mess: targeting collagen degradation to treat tissue fibrosis. Am J Physiol Lung Cell Mol Physiol 2013; 304:L709-21. [PMID: 23564511 PMCID: PMC3680761 DOI: 10.1152/ajplung.00418.2012] [Citation(s) in RCA: 156] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 03/26/2013] [Indexed: 12/23/2022] Open
Abstract
Pulmonary fibrosis is a vexing clinical problem with no proven therapeutic options. In the normal lung there is continuous collagen synthesis and collagen degradation, and these two processes are precisely balanced to maintain normal tissue architecture. With lung injury there is an increase in the rate of both collagen production and collagen degradation. The increase in collagen degradation is critical in preventing the formation of permanent scar tissue each time the lung is exposed to injury. In pulmonary fibrosis, collagen degradation does not keep pace with collagen production, resulting in extracellular accumulation of fibrillar collagen. Collagen degradation occurs through both extracellular and intracellular pathways. The extracellular pathway involves cleavage of collagen fibrils by proteolytic enzyme including the metalloproteinases. The less-well-described intracellular pathway involves binding and uptake of collagen fragments by fibroblasts and macrophages for lysosomal degradation. The relationship between these two pathways and their relevance to the development of fibrosis is complex. Fibrosis in the lung, liver, and skin has been associated with an impaired degradative environment. Much of the current scientific effort in fibrosis is focused on understanding the pathways that regulate increased collagen production. However, recent reports suggest an important role for collagen turnover and degradation in regulating the severity of tissue fibrosis. The objective of this review is to evaluate the roles of the extracellular and intracellular collagen degradation pathways in the development of fibrosis and to examine whether pulmonary fibrosis can be viewed as a disease of impaired matrix degradation rather than a disease of increased matrix production.
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Affiliation(s)
- William McKleroy
- Cardiovascular Research Institute, Lung Biology Center, University of California San Francisco, San Francisco, CA 94158, USA
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32
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Yamaguchi Y, Ono J, Masuoka M, Ohta S, Izuhara K, Ikezawa Z, Aihara M, Takahashi K. Serum periostin levels are correlated with progressive skin sclerosis in patients with systemic sclerosis. Br J Dermatol 2013; 168:717-25. [DOI: 10.1111/bjd.12117] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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33
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Pattanaik D, Brown M, Postlethwaite AE. Vascular involvement in systemic sclerosis (scleroderma). J Inflamm Res 2011; 4:105-25. [PMID: 22096374 PMCID: PMC3218751 DOI: 10.2147/jir.s18145] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Systemic sclerosis (SSc) is an acquired multiorgan connective tissue disease with variable mortality and morbidity dictated by clinical subset type. The etiology of the basic disease and pathogenesis of the systemic autoimmunity, fibrosis, and fibroproliferative vasculopathy are unknown and debated. In this review, the spectrum of vascular abnormalities and the options currently available to treat the vascular manifestations of SSc are discussed. Also discussed is how the hallmark pathologies (ie, how autoimmunity, vasculopathy, and fibrosis of the disease) might be effected and interconnected with modulatory input from lysophospholipids, sphingosine 1-phosphate, and lysophosphatidic acid.
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Affiliation(s)
- Debendra Pattanaik
- Division of Connective Tissue Diseases, Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
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34
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Abstract
Systemic scleroderma may serve as a paradigm for orphan diseases where the rarity, different subsets and fluctuating disease activity constitute major obstacles of research into mechanisms and therapeutic development. Recently, significant advances in the detailed understanding of the functioning of growth factors, their receptors and of the physiology of the connective tissue have been achieved. In particular, an improved concept was developed for the pathophysiology of scleroderma, highlighting the role of hypoxia, cellular stress and a concert of interacting cytokines. Tyrosine kinases have been shown to regulate the activity of a number of cytokines and growth factors, e.g. transforming growth factor-beta and platelet-derived growth factor, which play a central role in the pathophysiology of SSc. Novel pharmacological compounds interacting with signalling cascades induced by hypoxia and intracellular signal transduction pathways of mesenchymal cells, e.g. tyrosine kinase inhibitors, are currently being investigated for the treatment of this life-threatening disease.
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35
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Overbeek MJ, Mouchaers KTB, Niessen HM, Hadi AM, Kupreishvili K, Boonstra A, Voskuyl AE, Belien JAM, Smit EF, Dijkmans BC, Vonk-Noordegraaf A, Grünberg K. Characteristics of interstitial fibrosis and inflammatory cell infiltration in right ventricles of systemic sclerosis-associated pulmonary arterial hypertension. Int J Rheumatol 2010; 2010:604615. [PMID: 20936074 PMCID: PMC2949592 DOI: 10.1155/2010/604615] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2010] [Revised: 07/20/2010] [Accepted: 07/21/2010] [Indexed: 11/17/2022] Open
Abstract
Objective. Systemic sclerosis-associated pulmonary arterial hypertension (SScPAH) has a disturbed function of the right ventricle (RV) when compared to idiopathic PAH (IPAH). Systemic sclerosis may also affect the heart. We hypothesize that RV differences may occur at the level of interstitial inflammation and-fibrosis and compared inflammatory cell infiltrate and fibrosis between the RV of SScPAH, IPAH, and healthy controls. Methods. Paraffin-embedded tissue samples of RV and left ventricle (LV) from SScPAH (n = 5) and IPAH (n = 9) patients and controls (n = 4) were picrosirius red stained for detection of interstitial fibrosis, which was quantified semiautomatically. Neutrophilic granulocytes (MPO), macrophages (CD68), and lymphocytes (CD45) were immunohistochemically stained and only interstitial leukocytes were counted. Presence of epi- or endocardial inflammation, and of perivascular or intimal fibrosis of coronary arteries was assessed semiquantitatively (0-3: absent to extensive). Results. RV's of SScPAH showed significantly more inflammatory cells than of IPAH (cells/mm(2), mean ± sd MPO 11 ± 3 versus 6 ± 1; CD68 11 ± 3 versus 6 ± 1; CD45 11 ± 1 versus 5 ± 1 , P < .05) and than of controls. RV interstitial fibrosis was similar in SScPAH and IPAH (4 ± 1 versus 5 ± 1%, P = .9), and did not differ from controls (5 ± 1%, P = .8). In 4 SScPAH and 5 IPAH RV's foci of replacement fibrosis were found. No differences were found on epi- or endocardial inflammation or on perivascular or intimal fibrosis of coronary arteries. Conclusion. SScPAH RVs display denser inflammatory infiltrates than IPAH, while they do not differ with respect to interstitial fibrosis. Whether increased inflammatory status is a contributor to altered RV function in SScPAH warrants further research.
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Affiliation(s)
- Maria J. Overbeek
- Department of Pulmonary Diseases, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Koen T. B. Mouchaers
- Department of Pulmonary Diseases, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Hans M. Niessen
- Department of Pathology, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
- Department of Cardiac Surgery, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Awal M. Hadi
- Department of Pulmonary Diseases, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Koba Kupreishvili
- Department of Pathology, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Anco Boonstra
- Department of Pulmonary Diseases, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Alexandre E. Voskuyl
- Department of Rheumatology, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Jeroen A. M. Belien
- Department of Pathology, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Egbert F. Smit
- Department of Pulmonary Diseases, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Ben C. Dijkmans
- Department of Rheumatology, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Anton Vonk-Noordegraaf
- Department of Pulmonary Diseases, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
| | - Katrien Grünberg
- Department of Pathology, VU University Medical Center, VU University Amsterdam, De Boelelaan 1117, NL 1007 MB Amsterdam, The Netherlands
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Uchiyama M, Okubo Y, Kawashima H, Yamamoto K, Mitsuhashi Y, Tsuboi R. Case of localized scleroderma successfully treated with bath psoralen and ultraviolet A therapy. J Dermatol 2010; 37:75-80. [PMID: 20175842 DOI: 10.1111/j.1346-8138.2009.00750.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The patient was a 12-year-old girl with linear scleroderma distributed on the right abdomen, dorsal aspect of the right thigh, lower leg and foot. The initial regimen of oral prednisolone and methotrexate, or i.v. methylprednisolone failed in the treatment of the scleroderma. Then bath psoralen and ultraviolet A therapy (bath-PUVA) therapy of 0.2 J-4.0 J/cm(2) daily to total doses 62.8 J/cm(2) combined with oral prednisolone was started. After bath-PUVA therapy, regression of the skin sclerosis was observed, the possible mobile range of the right ankle was increased and histological examination confirmed improvement of the sclerosis. The successful results of bath-PUVA therapy in this case suggest its utility for localized scleroderma.
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Affiliation(s)
- Masaki Uchiyama
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
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Brinckmann J, Hunzelmann N, Kahle B, Rohwedel J, Kramer J, Gibson MA, Hubmacher D, Reinhardt DP. Enhanced fibrillin-2 expression is a general feature of wound healing and sclerosis: potential alteration of cell attachment and storage of TGF-beta. J Transl Med 2010; 90:739-52. [PMID: 20195245 DOI: 10.1038/labinvest.2010.49] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Wound healing and sclerosis are characterized by an increase of extracellular matrix proteins, which are characteristically expressed in the embryo-fetal period. We analyzed the expression of fibrillin-2, which is typically found in embryonic tissues, but only scarcely in adult skin. In wound healing and sclerotic skin diseases such as lipodermatosclerosis and scleroderma, a marked increase of fibrillin-2 expression was found by immunohistology. Double labelling of fibrillin-2 and tenascin-C, which is also expressed in wound healing and sclerosis, showed co-localization of both proteins. Solid-phase and slot blot-overlay assays showed a dose-dependent binding of the recombinant N-terminal half of fibrillin-2 (rFBN2-N) to tenascin-C. Real-time PCR showed an increase of the fibrillin-2 gene expression in cell culture triggered by typical mediators for fibroblast activation such as serum, IL-4, and TGF-beta. By contrast, prolonged hypoxia is not associated with changes in fibrillin-2 expression. Tenascin-C is an anti-adhesive substrate for fibroblasts, whereas fibrillin-2 stimulates cell attachment. Attachment assays using mixed substrates showed decreased cell attachment when tenascin-C and rFBN2-N were coated together, compared with the attachment to rFBN2-N alone. Fibrillins are involved in storage and activation of TGF-beta. Immunohistology with an antibody against the latency-associated peptide (LAP (TGF-beta1)) showed a marked increase of inactive LAP-bound TGF-beta1 in wound healing and sclerotic skin whereas normal skin showed only a weak expression. Double immunofluorescence confirmed a partial colocalization of both proteins. In conclusion, we show that a stimulation of the fibrillin-2 expression is a characteristic feature of fibroblasts present in wound healing and sclerosis, which may be involved in the alteration of cell attachment and storage of inactive TGF-beta in the matrix.
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Kreuter A, Krieg T, Worm M, Wenzel J, Gambichler T, Kuhn A, Aberer E, Scharffetter-Kochanek K, Hunzelmann N. [AWMF Guideline no. 013/066. Diagnosis and therapy of circumscribed scleroderma]. J Dtsch Dermatol Ges 2009; 7 Suppl 6:S1-14. [PMID: 19660073 DOI: 10.1111/j.1610-0387.2009.07178.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Localized scleroderma is a rare autoimmune disease with primary affection of the skin, and occasional involvement of the fat tissue, muscle, fascia, and bone. Depending on the clinical subtype, the spectrum of skin lesions ranges from singular plaque lesions to severe generalized or linear subtypes which may lead to movement restrictions and permanent disability. This German S1-guideline proposes a classification of localized scleroderma that, considering the extent and depth of fibrosis, distinguishes limited, generalized, linear, and deep forms of localized scleroderma, together with its associated subtypes. The guideline includes a description of the pathogenesis, of differential diagnoses, and particular aspects of juvenile localized scleroderma, as well as recommendations for histopathologic, serologic, and biometric diagnostic procedures. Based on studies of topical and systemic treatments as well as phototherapy for localized scleroderma published in international literature, a treatment algorithm was developed which takes account of the different subtypes and the extent of disease.
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Zhang J, Liu W, Yi Z, Chen R, Li Y, Min Y. The molecular mechanism of photodynamic therapy to fibrosis: Regulation on the pyridinoline cross-link formation in collagen. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11434-009-0420-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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van den Bogaerdt AJ, van der Veen VC, van Zuijlen PP, Reijnen L, Verkerk M, Bank RA, Middelkoop E, Ulrich MM. Collagen cross-linking by adipose-derived mesenchymal stromal cells and scar-derived mesenchymal cells: Are mesenchymal stromal cells involved in scar formation? Wound Repair Regen 2009; 17:548-58. [DOI: 10.1111/j.1524-475x.2009.00501.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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41
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Affiliation(s)
- Armando Gabrielli
- Department of Medical Science and Surgery, Section of Clinical Medicine, Università Politecnica delle Marche, and Ospedali Riuniti, Ancona, Italy.
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Houngbédji GM, Côté CH, Small PL, Frenette J. Limited repair and structural damages displayed by skeletal muscles loaded with mycolactone. Microbes Infect 2009; 11:238-44. [DOI: 10.1016/j.micinf.2008.11.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2008] [Revised: 11/13/2008] [Accepted: 11/20/2008] [Indexed: 10/21/2022]
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Fabri M, Krieg T. [Pathogenesis of systemic sclerosis]. Hautarzt 2007; 58:838, 840-3. [PMID: 17786395 DOI: 10.1007/s00105-007-1392-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Systemic sclerosis is a complex multi-systemic disease with a mostly unresolved pathogenesis. Following an inflammatory reaction, overproduction of collagen and other extra-cellular matrix components leads to a characteristic fibrosis. It remains unclear why this overproduction by fibroblasts and myofibroblasts occurs. Micro-vascular disturbances and endothelial cells, as well as immunomodulation and inflammation are central factors. Besides intrinsic influences, such as genetic polymorphisms, multiple mediators with fibrotic effects such as Platelet Derived Growth Factor, Transforming Growth Factor-beta and Connective Tissue Growth Factor have been characterized. These have become targets for innovative therapeutic strategies that might lead to specific treatments for systemic sclerosis.
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Affiliation(s)
- M Fabri
- Klinik und Poliklinik für Dermatologie und Venerologie, Universität zu Köln, Kerpenerstrasse 62, 50924, Köln, Germany
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Ulrich MMW, Verkerk M, Reijnen L, Vlig M, van den Bogaerdt AJ, Middelkoop E. Expression profile of proteins involved in scar formation in the healing process of full-thickness excisional wounds in the porcine model. Wound Repair Regen 2007; 15:482-90. [PMID: 17650091 DOI: 10.1111/j.1524-475x.2007.00255.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Scar formation in deep dermal wounds is associated with excessive collagen deposition and contraction. Increased collagen synthesis and decreased collagen degradation are the mechanisms through which this form of fibrosis can occur. Another factor might be a different kind of collagen cross-linking seen in fibrotic skin diseases. This type of cross-linking is dependent on the enzyme lysyl hydroxylase-2b. In this study, we examined the expression profile of the potential key players in scar formation in time in healing of acute wounds. Collagen types I and III, lysyl hydroxylase-2b, alpha-smooth muscle actin, transforming growth factor betas, and the matrix metalloproteinases and their inhibitor mRNA levels were determined. All genes examined show distinct expression patterns over time. The expression of lysyl hydroxylase-2b peaks at day 7, and precedes collagen types I and III expression. Eight weeks after wounding, the scars showed an increased level of lysyl hydroxylase-2b-mediated collagen cross-linking. This study shows that the fibrosis-specific type of cross-linking of collagen seen in human hypertrophic scarring also plays a role in this animal model of wound healing. Moreover, the expression of the putative gene responsible for this type of cross-linking, the lysyl hydroxylase-2b, is elevated during wound healing.
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Takaluoma K, Lantto J, Myllyharju J. Lysyl hydroxylase 2 is a specific telopeptide hydroxylase, while all three isoenzymes hydroxylate collagenous sequences. Matrix Biol 2007; 26:396-403. [PMID: 17289364 DOI: 10.1016/j.matbio.2007.01.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2006] [Revised: 11/20/2006] [Accepted: 01/09/2007] [Indexed: 10/23/2022]
Abstract
Lysyl hydroxylase (LH), with three isoenzymes in vertebrates, catalyzes the formation of hydroxylysine by acting on -X-Lys-Gly- triplets in the collagenous domains of proteins of the collagen superfamily and also in -X-Lys-Ala- or -X-Lys-Ser- sequences in the telopeptides located at the ends of the polypeptide chains in some fibril-forming collagens. The hydroxylysine residues are essential for the stability of collagen crosslinks and act as carbohydrate attachment sites. The extent of lysine hydroxylation varies between collagen types, between tissues in the same collagen type and in certain diseases, suggesting that the LH isoenzymes may have different substrate specificities. We studied here the hydroxylation of synthetic peptides representing various hydroxylation sites in type I and IV collagens by purified recombinant LHs in vitro and of a recombinant full-length type I procollagen chain coexpressed with each LH in insect cells. All three LHs hydroxylated peptides representing collagenous sequences of type I and IV collagens, although with different K(m) and V(max) values. Furthermore, all three hydroxylated the collagenous domain of the coexpressed type I procollagen chain to a similar extent. None of the isoenzymes hydroxylated peptides representing the N and C telopeptides of type I collagen, but LH2, unlike the other two isoenzymes, hydroxylated the N telopeptide in the coexpressed procollagen chain. Hydroxylation of the telopeptide lysines by LH2 thus occurs only in the context of a long peptide. These data provide the first direct evidence that LH2 is a specific telopeptide hydroxylase, while all three LHs act on collagenous sequences.
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Affiliation(s)
- Kati Takaluoma
- Collagen Research Unit, Biocenter Oulu and Department of Medical Biochemistry and Molecular Biology, University of Oulu, FIN-90014, Oulu, Finland
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Eckes B, Hunzelmann N, Moinzadeh P, Krieg T. Scleroderma -- news to tell. Arch Dermatol Res 2007; 299:139-44. [PMID: 17453220 DOI: 10.1007/s00403-007-0756-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2007] [Revised: 03/28/2007] [Accepted: 03/29/2007] [Indexed: 12/16/2022]
Abstract
Scleroderma is a chronic fibrosing disease, in which an early inflammatory reaction precedes the fibrotic response. Systematic analysis of the pathways involved in the development of the disease together with information derived from novel animal models have helped to better understand the mechanisms that trigger and sustain fibrotic reactions.
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Affiliation(s)
- Beate Eckes
- Department of Dermatology, University of Cologne, Kerpener Str 62, Cologne, Germany
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Gioia M, Monaco S, Fasciglione GF, Coletti A, Modesti A, Marini S, Coletta M. Characterization of the mechanisms by which gelatinase A, neutrophil collagenase, and membrane-type metalloproteinase MMP-14 recognize collagen I and enzymatically process the two alpha-chains. J Mol Biol 2007; 368:1101-13. [PMID: 17379243 DOI: 10.1016/j.jmb.2007.02.076] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2006] [Revised: 02/19/2007] [Accepted: 02/21/2007] [Indexed: 10/23/2022]
Abstract
The turnover of native collagen has been ascribed to different members of the matrix metalloproteinase (MMP) family. Here, the mechanisms by which neutrophil collagenase (MMP-8), gelatinase A (MMP-2), and the ectodomain of MT1-MMP (ectMMP-14) degrade fibrillar collagen were examined. In particular, the hydrolysis of type I collagen at 37 degrees C was investigated to identify functional differences in the processing of the two alpha-chain types of fibrillar collagen. Thermodynamic and kinetic parameters were used for a quantitative comparison of the binding, unwinding, and hydrolysis of triple helical collagen. We demonstrate that the MMP family has developed at least two distinct mechanisms for collagen unwinding and cleavage. MMP-8 and ectMMP-14 display a similar mechanism (although with different catalytic parameters), which is characterized by binding (likely through the hemopexin-like domain) and cleavage of alpha-1 and/or alpha-2 chains without distinguishing between them and keeping the gross conformation of the triple helix (at least during the first cleavage step). On the other hand, MMP-2 binds preferentially the alpha-1 chains (likely through the fibronectin-like domain, which is not present in MMP-8 and ectMMP-14), grossly altering the whole triple helical arrangement of the collagen molecule and cleaving preferentially the alpha-2 chain. These distinctive mechanisms underly a drastically different mode of interaction with triple helical fibrillar collagen I, according to which the MMP domain is involved in binding. These findings can be related to the different role exerted by these MMPs on collagen homeostasis in the extracellular matrix.
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Affiliation(s)
- Magda Gioia
- Department of Experimental Medicine and Biochemical Sciences, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Rome, Italy
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Fill JA, Brandt JT, Wiedemann HP, Rinehart BL, Lindemann CF, Komara JJ, Bowsher RR, Spence MC, Zeiher BG. Urinary desmosine as a biomarker in acute lung injury. Biomarkers 2006; 11:85-96. [PMID: 16484139 DOI: 10.1080/13547500500343225] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Acute lung injury (ALI) is a complex disorder associated with an acute inflammatory response thought to contribute to tissue injury. Desmosine, a cross-linking amino acid present in elastin, is released during matrix degradation and cleared by the kidney. Results from animal models and human disease studies have suggested that ALI is associated with the release of desmosine, resulting in increased urinary desmosine. A radioimmunoassay was used to monitor urinary desmosine levels over 10 days in ten patients with ALI. The concentration of desmosine was measured with and without acid hydrolysis. Baseline urinary desmosine was increased in two of ten patients. The concentration of desmosine at baseline did not appear to be related to age, gender, neutrophil elastase (NE)/alpha(1)-antiprotease complex concentration or P(a)O(2)/F(i)O(2) ratio. No meaningful changes in desmosine levels were noted after removal from mechanical ventilation. Baseline desmosine concentrations did not appear to correlate with the risk of death. The limited sensitivity, predictive correlations and dynamic modulation would suggest that urine desmosine has a limited role as a biomarker for ALI. Hydrolysis of urine samples appears necessary for optimal measurement of urine desmosine.
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Affiliation(s)
- J A Fill
- Eli Lilly and Co, Lilly Corporate Center, Indianapolis, IN 46285, USA.
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Lin SJ, Lo W, Tan HY, Chan JY, Chen WL, Wang SH, Sun Y, Lin WC, Chen JS, Hsu CJ, Tjiu JW, Yu HS, Jee SH, Dong CY. Prediction of heat-induced collagen shrinkage by use of second harmonic generation microscopy. JOURNAL OF BIOMEDICAL OPTICS 2006; 11:34020. [PMID: 16822069 DOI: 10.1117/1.2209959] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Collagen shrinkage associated with denaturation from thermal treatment has a number of important clinical applications. However, individualized treatment is hindered by the lack of reliable noninvasive methods to monitor the process of collagen denaturation. We investigate the serial changes of collagen denaturation from thermal treatment of rat tail tendons at 58 degrees C by use of second harmonic generation (SHG) microscopy. We find that rat tail tendon shrinks progressively from 0 to 9 min of thermal treatment, and remains unchanged in length upon further thermal treatment. The SHG intensity also decreases from 0 to 9 min of thermal treatment and becomes barely detectable from further thermal treatment. Collagen shrinkage and the SHG intensity are well correlated in a linear model. In addition, SHG imaging reveals a tiger-tail-like pattern of collagen denaturation. The bands of denatured collagen progressively widen from increased thermal treatment and completely replace the adjacent bands of normal collagen after 9 min of thermal treatment. Our results show that collagen denaturation in rat tail tendon from thermal treatment is inhomogeneous, and that SHG intensity can be used to predict the degree of thermally induced collagen shrinkage. With additional development, this approach has the potential to be used in biomedical applications.
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Affiliation(s)
- Sung-Jan Lin
- National Taiwan University Hospital and College of Medicine, Department of Dermatology, Taipei
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Kowalewski C, Kozłowska A, Górska M, Woźniak K, Krajewski M, Błaszczyk M, Jabłońska S. Alterations of Basement Membrane Zone and Cutaneous Microvasculature in Morphea and Extragenital Lichen Sclerosus. Am J Dermatopathol 2005; 27:489-96. [PMID: 16314704 DOI: 10.1097/01.dad.0000183679.40184.23] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The aim of this study was to compare alterations of the basement membrane zone (BMZ) and to visualize changes within the skin vascular network in morphea and extragenital lichen sclerosus with the use of laser scanning confocal microscopy. This work was performed in eight plaques of morphea (three active and five inactive) and eight of lichen sclerosus (three of short duration and five long-lasting). Biopsy specimens from six healthy individuals served as controls. The biopsies were cut into 40-microm-thick sections, labeled with antibodies against beta4-intergin (a lamina lucida marker), collagen IV, and the N-terminal end of collagen VII (lamina densa markers) and C-terminal end of collagen VII (a sublamina densa marker) and studied using laser scanning confocal microscopy. Three-dimensional reconstruction of various regions of the BMZ showed a decreased number and size of the dermal papillae both in morphea and lichen sclerosus compared with normal skin. In morphea, the continuity of the BMZ at the level of lamina lucida, lamina densa, and sublamina densa was preserved whereas in LS numerous invaginations and holes were present in the BMZ at the level of the lamina lucida and lamina densa. Thus the alterations of the BMZ in morphea differ from those in lichen sclerosus. Three-dimensional reconstruction of the skin vascular network showed increased angiogenesis only in the early inflammatory stage of morphea, whereas in inactive morphea and lichen sclerosus various numbers of enlarged vessels were visible. The changes in the vascular network in morphea appear to be related to the activity of the disease.
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