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Chen X, Wu Y, Jia S, Zhao M. Fibroblast: A Novel Target for Autoimmune and Inflammatory Skin Diseases Therapeutics. Clin Rev Allergy Immunol 2024; 66:274-293. [PMID: 38940997 DOI: 10.1007/s12016-024-08997-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2024] [Indexed: 06/29/2024]
Abstract
Fibroblasts are crucial components of the skin structure. They were traditionally believed to maintain the skin's structure by producing extracellular matrix and other elements. Recent research illuminated that fibroblasts can respond to external stimuli and exhibit diverse functions, such as the secretion of pro-inflammatory factors, adipogenesis, and antigen presentation, exhibiting remarkable heterogeneity and plasticity. This revelation positions fibroblasts as active contributors to the pathogenesis of skin diseases, challenging the traditional perspective that views fibroblasts solely as structural entities. Based on their diverse functions, fibroblasts can be categorized into six subtypes: pro-inflammatory fibroblasts, myofibroblasts, adipogenic fibroblasts, angiogenic fibroblasts, mesenchymal fibroblasts, and antigen-presenting fibroblasts. Cytokines, metabolism, and epigenetics regulate functional abnormalities in fibroblasts. The dynamic changes fibroblasts exhibit in different diseases and disease states warrant a comprehensive discussion. We focus on dermal fibroblasts' aberrant manifestations and pivotal roles in inflammatory and autoimmune skin diseases, including psoriasis, vitiligo, lupus erythematosus, scleroderma, and atopic dermatitis, and propose targeting aberrantly activated fibroblasts as a potential therapeutic strategy for inflammatory and autoimmune skin diseases.
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Affiliation(s)
- Xiaoyun Chen
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Yutong Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Sujie Jia
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, China.
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China.
| | - Ming Zhao
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, 410011, China.
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, China.
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China.
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2
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Zhou XY, Chen K, Zhang JA. Mast cells as important regulators in the development of psoriasis. Front Immunol 2022; 13:1022986. [PMID: 36405690 PMCID: PMC9669610 DOI: 10.3389/fimmu.2022.1022986] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/24/2022] [Indexed: 08/22/2023] Open
Abstract
Psoriasis is a chronic inflammatory immune skin disease mediated by genetic and environmental factors. As a bridge between innate and adaptive immunity, mast cells are involved in the initiation, development, and maintenance of psoriasis by interactions and communication with a variety of cells. The current review describes interactions of mast cells with T cells, Tregs, keratinocytes, adipocytes, and sensory neurons in psoriasis to emphasize the important role of mast cell-centered cell networks in psoriasis.
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Affiliation(s)
| | | | - Jia-An Zhang
- Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
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3
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Zongfei J, Rongyi C, Xiaomeng C, Lili M, Lingying M, Xiufang K, Xiaomin D, Zhuojun Z, Huiyong C, Ying S, Lindi J. In vitro IL-6/IL-6R Trans-Signaling in Fibroblasts Releases Cytokines That May Be Linked to the Pathogenesis of IgG4-Related Disease. Front Immunol 2020; 11:1272. [PMID: 32733444 PMCID: PMC7360847 DOI: 10.3389/fimmu.2020.01272] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 05/19/2020] [Indexed: 12/14/2022] Open
Abstract
Background: The remarkable mechanisms of storiform fibrosis and the formation of high levels of IgG4 with a pathogenic germinal center (GC) in the inflammatory tissue of IgG4-RD remains unknown and may be responsible for the unsatisfactory therapeutic effect on IgG4-related diseases when using conventional therapy. Objectives: To investigate the mechanisms of interleukin 6 (IL-6) inducing fibroblasts to produce cytokines for pathogenic GC formation in the development of IgG4-related disease (IgG4-RD). Methods: The clinical data and laboratory examinations of 56 patients with IgG4-RD were collected. IL-6 and IL-6R expression in the serum and tissues of patients with IgG4-RD and healthy controls were detected by ELISA, immunohistochemistry, and immunofluorescence. Human aorta adventitial fibroblasts (AAFs) were cultured and stimulated with IL-6/IL-6 receptor (IL-6R). The effect of IL-6/IL-6R on AAFs was determined by Luminex assays. Results: The serum IL-6 and IL-6R levels were elevated in active IgG4-RD patients and IL-6 was positively correlated with the disease activity (e.g., erythrocyte sedimentation rate [ESR], C-reactive protein [CRP], and IgG4-RD responder index). IL-6 and IL-6R expression in the tissue lesions of IgG4-related retroperitoneal fibrosis and IgG4-related sialadenitis patients were also significantly higher than that in the normal tissues. In addition, there is a relative abundance of myofibroblasts as well as IgG4+ plasma cells in the tissues of IgG4-related retroperitoneal fibrosis. α-SMA and B cell differentiation cytokines (i.e., B cell activating factor), and α-SMA and T follicular helper (Tfh) cell differentiation cytokines (e.g., IL-7, IL-12, and IL-23) were co-expressed in the local lesions. In vitro, IL-6/IL-6R significantly promoted the production of B cell activating factor, IL-7, IL-12, and IL-23 in AAFs in a dose-dependent manner. This effect was partially blocked by JAK1, JAK2, STAT3, and Akt inhibitors, respectively. Conclusions:In vitro IL-6/IL-6R trans-signaling in fibroblasts releases Tfh and B cell differentiation factors partially via the JAK2/STAT3, JAK1/STAT3, and JAK2/Akt pathways, which may be linked to the pathogenesis of IgG4-RD. This indicated that IL-6 and fibroblasts may be responsible for GC formation and fibrosis in the development of IgG4-RD. Blocking IL-6 with JAK1/2 inhibitors or inhibiting fibroblast proliferation might be beneficial for IgG4-RD treatment.
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Affiliation(s)
- Ji Zongfei
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Chen Rongyi
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Cui Xiaomeng
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Ma Lili
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Ma Lingying
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Kong Xiufang
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Dai Xiaomin
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Zhang Zhuojun
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Chen Huiyong
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Sun Ying
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
| | - Jiang Lindi
- Department of Rheumatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Evidence-Based Medicine Center, Fudan University, Shanghai, China
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4
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Mizutani K, Shirakami E, Ichishi M, Matsushima Y, Umaoka A, Okada K, Yamaguchi Y, Watanabe M, Morita E, Yamanaka K. Systemic Dermatitis Model Mice Exhibit Atrophy of Visceral Adipose Tissue and Increase Stromal Cells via Skin-Derived Inflammatory Cytokines. Int J Mol Sci 2020; 21:ijms21093367. [PMID: 32397568 PMCID: PMC7247662 DOI: 10.3390/ijms21093367] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 12/31/2022] Open
Abstract
Adipose tissue (AT) is the largest endocrine organ, producing bioactive products called adipocytokines, which regulate several metabolic pathways, especially in inflammatory conditions. On the other hand, there is evidence that chronic inflammatory skin disease is closely associated with vascular sclerotic changes, cardiomegaly, and severe systemic amyloidosis in multiple organs. In psoriasis, a common chronic intractable inflammatory skin disease, several studies have shown that adipokine levels are associated with disease severity. Chronic skin disease is also associated with metabolic syndrome, including abnormal tissue remodeling; however, the mechanism is still unclear. We addressed this problem using keratin 14-specific caspase-1 overexpressing transgenic (KCASP1Tg) mice with severe erosive dermatitis from 8 weeks of age, followed by re-epithelization. The whole body and gonadal white AT (GWAT) weights were decreased. Each adipocyte was large in number, small in size and irregularly shaped; abundant inflammatory cells, including activated CD4+ or CD8+ T cells and toll-like receptor 4/CD11b-positive activated monocytes, infiltrated into the GWAT. We assumed that inflammatory cytokine production in skin lesions was the key factor for this lymphocyte/monocyte activation and AT dysregulation. We tested our hypothesis that the AT in a mouse dermatitis model shows an impaired thermogenesis ability due to systemic inflammation. After exposure to 4 °C, the mRNA expression of the thermogenic gene uncoupling protein 1 in adipocytes was elevated; however, the body temperature of the KCASP1Tg mice decreased rapidly, revealing an impaired thermogenesis ability of the AT due to atrophy. Tumor necrosis factor (TNF)-α, IL-1β and interferon (INF)-γ levels were significantly increased in KCASP1Tg mouse ear skin lesions. To investigate the direct effects of these cytokines, BL/6 wild mice were administered intraperitoneal TNF-α, IL-1β and INF-γ injections, which resulted in small adipocytes with abundant stromal cell infiltration, suggesting those cytokines have a synergistic effect on adipocytes. The systemic dermatitis model mice showed atrophy of AT and increased stromal cells. These findings were reproducible by the intraperitoneal administration of inflammatory cytokines whose production was increased in inflamed skin lesions.
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Affiliation(s)
- Kento Mizutani
- Department of Dermatology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (K.M.); (E.S.); (Y.M.); (A.U.); (K.O.)
| | - Eri Shirakami
- Department of Dermatology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (K.M.); (E.S.); (Y.M.); (A.U.); (K.O.)
- Department of Dermatology, Faculty of Medicine, Shimane University, Shimane, Izumo 693-8501, Japan;
| | - Masako Ichishi
- Department of Oncologic Pathology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (M.I.); (M.W.)
| | - Yoshiaki Matsushima
- Department of Dermatology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (K.M.); (E.S.); (Y.M.); (A.U.); (K.O.)
| | - Ai Umaoka
- Department of Dermatology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (K.M.); (E.S.); (Y.M.); (A.U.); (K.O.)
| | - Karin Okada
- Department of Dermatology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (K.M.); (E.S.); (Y.M.); (A.U.); (K.O.)
| | - Yukie Yamaguchi
- Department of Environmental Immuno-Dermatology, School of Medicine, Yokohama City University Graduate, Yokohama 236-0027, Japan;
| | - Masatoshi Watanabe
- Department of Oncologic Pathology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (M.I.); (M.W.)
| | - Eishin Morita
- Department of Dermatology, Faculty of Medicine, Shimane University, Shimane, Izumo 693-8501, Japan;
| | - Keiichi Yamanaka
- Department of Dermatology, Graduate School of Medicine, Mie University, Mie, Tsu 514-8507, Japan; (K.M.); (E.S.); (Y.M.); (A.U.); (K.O.)
- Correspondence: ; Tel.: +81-59-231-5025; Fax: +81-59-231-5206
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5
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Packer M. Epicardial Adipose Tissue Inflammation Can Cause the Distinctive Pattern of Cardiovascular Disorders Seen in Psoriasis. Am J Med 2020; 133:267-272. [PMID: 31520623 DOI: 10.1016/j.amjmed.2019.08.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 12/20/2022]
Abstract
Psoriasis is a systemic inflammatory disorder that can target adipose tissue; the resulting adipocyte dysfunction is manifest clinically as the metabolic syndrome, which is present in ≈20%-40% of patients. Epicardial adipose tissue inflammation is likely responsible for a distinctive pattern of cardiovascular disorders consisting of 1) accelerated coronary atherosclerosis leading to myocardial infarction, 2) atrial myopathy leading to atrial fibrillation and thromboembolic stroke, and 3) ventricular myopathy leading to heart failure with a preserved ejection fraction. If cardiovascular inflammation drives these risks, then treatments that focus on blood pressure, lipids, and glucose will not ameliorate the burden of cardiovascular disease in patients with psoriasis, especially in those who are young and have severe inflammation. Instead, interventions that alleviate systemic and adipose tissue inflammation may not only minimize the risks of atrial fibrillation and heart failure but may also have favorable effects on the severity of psoriasis. Viewed from this perspective, the known link between psoriasis and cardiovascular disease is not related to the influence of the individual diagnostic components of the metabolic syndrome.
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Affiliation(s)
- Milton Packer
- Baylor Heart and Vascular Institute, Baylor University Medical Center, Dallas, Tex; Imperial College, London.
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6
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Kim MS, Park HJ, Kim SJ, Park JE, Yun JI, Lim HW, Lee ST. Recombinant FNIII9-10-derived extracellular signaling effects on the physiology of dermal fibroblasts during in vitro culture. Tissue Cell 2019; 63:101323. [PMID: 32223958 DOI: 10.1016/j.tice.2019.101323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 11/24/2019] [Accepted: 12/03/2019] [Indexed: 11/17/2022]
Abstract
Previous reports showed that fibronectin (FN) was effective in stimulating the recovery of damaged dermis. However, native FN has multifunctional domains transmitting beneficial as well as unbeneficial signals to dermal tissue cells through the mediation of integrin heterodimers. The use of a functional domain [FN type III9-10 fragments (FNIII9-10)] providing beneficial effects on the physiology of dermal tissue cells would enhance an in vitro culture system for dermal fibroblasts (DFs). We therefore investigated the FNIII9-10-derived extracellular signaling effect on the physiology of DFs during in vitro culture. Recombinant FNIII9-10 proteins were constructed and their functionality was determined by observing the adhesion of adult human DFs (aHDFs) to recombinant FNIII9-10 and of low adhesion integrin α5β1- and αvβ3-blocked aHDFs to recombinant FNIII9-10. Cellular proliferation, morphology, and senescence were measured and compared in the aHDFs cultured on native FN and recombinant FNIII9-10 for short or long periods. The results show that recombinant FNIII9-10-derived extracellular signaling stimulated increased proliferation of aHDF (both in short- and long-term cultures) and inhibited the generation of morphological abnormalities (in short- and long-term cultures) and cellular senescence (long-term culture) when compared with native FN-derived extracellular signaling. Our results suggest that, instead of native FN, recombinant FNIII9-10 better enhanced the in vitro culture of aHDFs while diminishing the adverse effects associated with the use of human-derived materials.
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Affiliation(s)
- Min Seong Kim
- Department of Animal Life Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Hye Jin Park
- Department of Animal Life Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Seong Jae Kim
- Department of Animal Life Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Ji Eun Park
- Department of Animal Life Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Jung Im Yun
- Division of Animal Resource Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Hye Won Lim
- Shebah Biotech Inc., Chuncheon, 24398, Republic of Korea
| | - Seung Tae Lee
- Department of Animal Life Science, Kangwon National University, Chuncheon, 24341, Republic of Korea; Department of Applied Animal Science, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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7
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Wong Y, Nakamizo S, Tan KJ, Kabashima K. An Update on the Role of Adipose Tissues in Psoriasis. Front Immunol 2019; 10:1507. [PMID: 31316526 PMCID: PMC6609873 DOI: 10.3389/fimmu.2019.01507] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 06/17/2019] [Indexed: 12/11/2022] Open
Abstract
Psoriasis is a common chronic inflammatory skin disease that is increasingly being recognized as a disease that not only affects the skin but also has multi-systemic implications. The pathophysiological link between psoriasis and obesity is becoming increasingly elucidated by recent studies. The cross-talk between adipocytes and the immune system via various mediators such as adipokines could explain how obesity contributes to psoriasis. The effects of obesity on adipocytes include upregulation of pro-inflammatory adipokines such as leptin and resistin, downregulation of anti-inflammatory adipokine, and also the stimulation of pro-inflammatory cytokine production by macrophages. This article provides an update on the role of adipose tissues in psoriasis.
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Affiliation(s)
| | - Satoshi Nakamizo
- Singapore Immunology Network, Skin Research Institute of Singapore, ASTAR, Singapore, Singapore
| | - Kahbing J Tan
- Singapore Immunology Network, Skin Research Institute of Singapore, ASTAR, Singapore, Singapore
| | - Kenji Kabashima
- Singapore Immunology Network, Skin Research Institute of Singapore, ASTAR, Singapore, Singapore.,Department Dermatology, Kyoto University School of Medicine, Kyoto, Japan
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8
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Madden SK, Flanagan KL, Jones G. How lifestyle factors and their associated pathogenetic mechanisms impact psoriasis. Clin Nutr 2019; 39:1026-1040. [PMID: 31155371 DOI: 10.1016/j.clnu.2019.05.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 04/11/2019] [Accepted: 05/06/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUNDS AND AIMS Psoriasis is a skin disorder affecting approximately 2-3% of the global population. While research has revealed a strong genetic component, there are few studies exploring the extent to which lifestyle factors influence psoriasis pathogenesis. The aim of this review was to describe the role of lifestyle factors as both a potential cause and treatment for psoriasis. The review also examines the underlying mechanisms through which these lifestyle factors may operate. METHODS This narrative review aims to incorporate current knowledge relating to both lifestyle and pathogenetic factors that contribute to and alleviate psoriasis presentation. Studies reporting the effect of an inflammatory diet and potential dietary benefits are reported, as well as insights into the effects of stress, smoking and alcohol, insulin resistance and exercise. RESULTS Poor nutrition and low Omega 3 fatty acid intake, likely combined with fat malabsorption caused by gut dysbiosis and systemic inflammation, are associated with psoriasis. The data strongly suggest that improvements to disease severity can be made through dietary and lifestyle interventions and increased physical activity. Less conclusive, although worthy of mention, is the beneficial effect of bile acid supplementation. CONCLUSIONS Lifestyle interventions are a promising treatment for psoriasis and its associated co-morbidities. However, gaps and inadequacies exist within the literature, e.g. methodology, absence of a unified scoring system, lack of controlled clinical data and lack of studies without simultaneous usage of biologics or alternative therapies. Future directions should focus on high quality cohort studies and clinical trials.
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Affiliation(s)
- Seonad K Madden
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Australia.
| | - Katie L Flanagan
- School of Medicine, College of Health and Medicine, University of Tasmania, Australia; School of Health & Biomedical Science, Royal Melbourne Institute of Technology, Australia; Infectious Diseases Service, Launceston General Hospital, Australia; Dept. of Immunology and Pathology, Monash University, Australia
| | - Graeme Jones
- Menzies Institute for Medical Research, University of Tasmania, Australia
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9
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Hu Y, Zhu Y, Lian N, Chen M, Bartke A, Yuan R. Metabolic Syndrome and Skin Diseases. Front Endocrinol (Lausanne) 2019; 10:788. [PMID: 31824416 PMCID: PMC6880611 DOI: 10.3389/fendo.2019.00788] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 10/29/2019] [Indexed: 12/13/2022] Open
Abstract
The increasing prevalence of Metabolic syndrome (MetS) is a worldwide health problem, and the association between MetS and skin diseases has recently attracted growing attention. In this review, we summarize the associations between MetS and skin diseases, such as psoriasis, acne vulgaris, hidradenitis suppurativa, androgenetic alopecia, acanthosis nigricans, and atopic dermatitis. To discuss the potential common mechanisms underlying MetS and skin diseases, we focus on insulin signaling and insulin resistance, as well as chronic inflammation including adipokines and proinflammatory cytokines related to molecular mechanisms. A better understanding of the relationship between MetS and skin diseases contributes to early diagnosis and prevention, as well as providing clues for developing novel therapeutic strategies.
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Affiliation(s)
- Yu Hu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Yun Zhu
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Ni Lian
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Min Chen
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- *Correspondence: Min Chen
| | - Andrzej Bartke
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Rong Yuan
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, United States
- Rong Yuan
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10
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The antifibrotic drug pirfenidone inhibits spondyloarthritis fibroblast-like synoviocytes and osteoblasts in vitro. BMC Rheumatol 2018; 2:33. [PMID: 30886983 PMCID: PMC6390625 DOI: 10.1186/s41927-018-0040-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 10/14/2018] [Indexed: 12/12/2022] Open
Abstract
Background The pathogenesis of spondyloarthritis (SpA) involves both inflammation and new bone formation in the spine. In line with this, the disease has been characterized as both inflammatory and fibrotic. The current treatment dampens inflammation while new bone formation can progress. Therefore, there is an unmet therapeutic need for the treatment of new bone formation in SpA. Fibrosis is mediated by myofibroblasts and new bone formation is the result of increased osteoblast mineralization and decreased osteoclast resorption. Here, we evaluate the potential effect of the newly approved anti-fibrotic agent pirfenidone (PFD) on fibrosis and new bone formation in cell culture models of SpA. Methods Fibroblast-like synoviocytes (FLSs) were isolated from SpA patients (n = 6) while the osteoblast cell line Saos-2 was purchased. The cells were cultured with PFD at 0.25 0.5, or 1.0 mg/ml. The proliferation of FLSs was analyzed with light microscopy and flow cytometry. The differentiation and activation of FLSs was assessed with flow cytometry, a membrane-based antibody array and enzyme-linked immunosorbant assays. The mineralization capacity of osteoblasts was studied with an assay measuring deposition of hydroxyapatite. Results PFD reduced the Ki67 expression 7.1-fold in untreated FLSs (p = 0.001) and 11.0-fold in FLSs stimulated with transforming growth factor beta (TGFβ), tumor necrosis factor alpha (TNFα), and interferon gamma (IFNγ) (p = 0.022). There were no statistically significant changes in membrane expression of alpha smooth muscle actin (αSMA), intercellular adhesion molecule 1 (ICAM-1), or human leukocyte antigen DR (HLA-DR). In supernatants from FLSs stimulated with TGFβ, TNFα, and IFNγ, PFD decreased the secretion of 3 of 12 proteins more than 2-fold in the membrane-based antibody array. The changes in secretion of monocyte chemoattractant protein 1 (MCP-1) and chitinase-3-like protein 1 (CHI3L1, YKL-40) were validated with ELISA. PFD decreased the secretion of both Dickkopf-related protein 1 (DKK1) (p = 0.006) and osteoprotegerin (OPG) (p = 0.02) by SpA FLSs stimulated with TGFβ, TNFα, and IFNγ. Finally, PFD inhibited the deposition of hydroxyapatite by osteoblasts in a dose-dependent manner (p = 0.0001). Conclusions PFD inhibited SpA FLS proliferation and function and osteoblast mineralization in vitro. This encourages studies of the in vivo effect of PFD in SpA.
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11
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Raaby L, Rosada C, Langkilde A, Lauridsen KL, Vinter H, Ommen P, Kjellerup RB, Johansen C, Iversen L. Langerhans cell markers CD1a and CD207 are the most rapidly responding genes in lesional psoriatic skin following adalimumab treatment. Exp Dermatol 2017; 26:804-810. [PMID: 28109175 DOI: 10.1111/exd.13304] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2017] [Indexed: 11/29/2022]
Abstract
TNFα-, IL-23- and IL-17-targeting drugs are highly effective in the treatment of psoriasis. However, the precise molecular mechanism remains unknown. In psoriatic skin, the presence of Langerhans cells (LCs) is reduced, but the role of LC is poorly understood. The purpose of this study was to investigate the impact of TNFα and IL-23/IL-17 on the presence of LC in the skin during treatment. Therefore, psoriatic skin was investigated before and after 4 days of adalimumab or ustekinumab treatment. Furthermore, TNFα and IL-17A stimulation was investigated in an ex vivo model of epidermis and dermis from healthy normal skin kept in cultures at an air-liquid interphase for 4 days. In a gene array analysis, we found that the two LC markers, CD1a and CD207, were among the most up- or downregulated genes in psoriatic skin after anti-TNFα therapy. Validation showed that both mRNA expression and protein level followed the same pattern and became significantly upregulated after 4 days of treatment. No changes were seen after ustekinumab treatment. In the ex vivo skin model, a decrease in the CD1a level was seen after TNFα stimulation and it was caused by LC migration from epidermis. No response in LC migration was seen after IL-17A stimulation. Taken together, we demonstrated that changes in the LC level in epidermis precede the histological and clinical changes during adalimumab treatment in psoriatic skin. Furthermore, TNFα plays a prominent role in orchestrating LC migration in the skin. This seems not to be the true for the IL-23/IL-17A pathway.
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Affiliation(s)
- Line Raaby
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark.,Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | - Cecilia Rosada
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - Ane Langkilde
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Hanne Vinter
- Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | - Pernille Ommen
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Claus Johansen
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - Lars Iversen
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
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Stjernholm T, Ommen P, Langkilde A, Johansen C, Iversen L, Rosada C, Stenderup K. Leptin deficiency in mice counteracts imiquimod (IMQ)-induced psoriasis-like skin inflammation while leptin stimulation induces inflammation in human keratinocytes. Exp Dermatol 2017; 26:338-345. [PMID: 27488462 DOI: 10.1111/exd.13149] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/12/2016] [Indexed: 12/21/2022]
Abstract
Leptin is an adipocyte-derived cytokine secreted mostly by adipose tissue. Serum leptin levels are elevated in obese individuals and correlate positively with body mass index (BMI). Interestingly, serum leptin levels are also elevated in patients with psoriasis and correlate positively with disease severity. Psoriasis is associated with obesity; patients with psoriasis have a higher incidence of obesity, and obese individuals have a higher risk of developing psoriasis. Additionally, obese patients with psoriasis experience a more severe degree of psoriasis. In this study, we hypothesised that leptin may link psoriasis and obesity and plays an aggravating role in psoriasis. To investigate leptin's role in psoriasis, we applied the widely accepted imiquimod (IMQ)-induced psoriasis-like skin inflammation mouse model on leptin-deficient (ob/ob) mice and evaluated psoriasis severity. Moreover, we stimulated human keratinocytes with leptin and investigated the effect on proliferation and expression of pro-inflammatory proteins. In ob/ob mice, clinical signs of erythema, infiltration and scales in dorsal skin and inflammation in ear skin, as measured by ear thickness, were attenuated and compared with wt mice. Moreover, IL-17A and IL-22 mRNA expression levels, as well as increased epidermal thickness, were significantly less induced. In vitro, the effect of leptin stimulation on human keratinocytes demonstrated increased proliferation and induced secretion of several pro-inflammatory proteins; two hallmarks of psoriasis. In conclusion, leptin deficiency attenuated IMQ-induced psoriasis-like skin inflammation in a mouse model, and leptin stimulation induced a pro-inflammatory phenotype in human keratinocytes, thus, supporting an aggravating role of leptin in psoriasis.
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Affiliation(s)
| | - Pernille Ommen
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - Ane Langkilde
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - Claus Johansen
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - Lars Iversen
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - Cecilia Rosada
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - Karin Stenderup
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
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Yin L, Hu Y, Xu J, Guo J, Tu J, Yin Z. Ultraviolet B Inhibits IL-17A/TNF-α-Stimulated Activation of Human Dermal Fibroblasts by Decreasing the Expression of IL-17RA and IL-17RC on Fibroblasts. Front Immunol 2017; 8:91. [PMID: 28217129 PMCID: PMC5289959 DOI: 10.3389/fimmu.2017.00091] [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] [Received: 10/22/2016] [Accepted: 01/19/2017] [Indexed: 11/23/2022] Open
Abstract
Background Psoriasis is a chronic immune-mediated inflammatory disease, and a mixed Th1/Th17 cytokine environment plays a critical role in the pathogenesis of psoriasis. Dermal fibroblasts secrete certain cytokines such as IL-6, IL-8, and CXCL-1, contributing to the hyperproliferative state of the epidermis in psoriatic skin. Ultraviolet B (UVB) phototherapy is one of the most commonly used treatments in psoriasis but the influence of UVB on human dermal fibroblasts (HDFs) in psoriasis treatment is not completely understood. Objectives We conducted this study to mimic a psoriatic microenvironment in order to investigate and illustrate the combined effects of UVB, IL-17A, and TNF-α on HDFs. Methods The cultured HDFs were obtained from foreskin samples and divided into four groups, as follows: control; IL-17A/TNF-α; UVB; and IL-17A/TNF-α + UVB. Cultured HDFs were irradiated with 30 mJ/cm2 UVB followed by addition of IL-17A/TNF-α and incubated for 24 h. We used real-time quantitative PCR, Western blot, ELISA analysis, and flow cytometry to examine gene and protein expression of related pro-inflammatory cytokines and chemokines and receptors. Results HDFs produced significant IL-6, IL-8, and CXCL-1 in response to IL-17A/TNF-α stimulation and UVB irradiation but UVB irradiation inhibited IL-17A/TNF-α-induced IL-6, IL-8, and CXCL-1 expression and downregulated the expression of IL-17RA and IL-17RC at both gene and protein levels. Additionally, UVB irradiation induced significant TGF-β1 protein secretion and expression of Smad3 mRNA and protein by HDFs. TGF-β1 significantly induced the expression of Smad3 mRNA and downregulated the IL-17RA and IL-17RC expression on HDFs. Conclusion UVB irradiation inhibits IL-17A/TNF-α-induced IL-6, IL-8, and CXCL-1 production in HDFs by decreasing the expression of IL-17RA and IL-17RC on fibroblasts through TGF-β1/Smad3 signaling pathway, which reveals a new mechanism of the therapeutic action of UVB on psoriasis.
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Affiliation(s)
- Li Yin
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University , Nanjing , China
| | - YingYing Hu
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University , Nanjing , China
| | - JiaLi Xu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University , Nanjing , China
| | - Jing Guo
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University , Nanjing , China
| | - Jie Tu
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University , Nanjing , China
| | - ZhiQiang Yin
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University , Nanjing , China
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Shook B, Rivera Gonzalez G, Ebmeier S, Grisotti G, Zwick R, Horsley V. The Role of Adipocytes in Tissue Regeneration and Stem Cell Niches. Annu Rev Cell Dev Biol 2016; 32:609-631. [PMID: 27146311 PMCID: PMC5157158 DOI: 10.1146/annurev-cellbio-111315-125426] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Classically, white adipose tissue (WAT) was considered an inert component of connective tissue but is now appreciated as a major regulator of metabolic physiology and endocrine homeostasis. Recent work defining how WAT develops and expands in vivo emphasizes the importance of specific locations of WAT or depots in metabolic regulation. Interestingly, mature white adipocytes are integrated into several tissues. A new perspective regarding the in vivo regulation and function of WAT in these tissues has highlighted an essential role of adipocytes in tissue homeostasis and regeneration. Finally, there has been significant progress in understanding how mature adipocytes regulate the pathology of several diseases. In this review, we discuss these novel roles of WAT in the homeostasis and regeneration of epithelial, muscle, and immune tissues and how they contribute to the pathology of several disorders.
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Affiliation(s)
- Brett Shook
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | - Guillermo Rivera Gonzalez
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | - Sarah Ebmeier
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | | | - Rachel Zwick
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
| | - Valerie Horsley
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520;
- Department of Dermatology, Yale University, New Haven, Connecticut 06520
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