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Wu X, Song J, Zhang Y, Kuai L, Liu C, Ma X, Li B, Zhang Z, Luo Y. Exploring the role of autophagy in psoriasis pathogenesis: Insights into sustained inflammation and dysfunctional keratinocyte differentiation. Int Immunopharmacol 2024; 135:112244. [PMID: 38776847 DOI: 10.1016/j.intimp.2024.112244] [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: 01/26/2024] [Revised: 04/08/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
Psoriasis is a common and prevalent chronic papulosquamous cutaneous disorder characterized by sustained inflammation, uncontrolled keratinocyte proliferation, dysfunctional differentiation, and angiogenesis. Autophagy, an intracellular catabolic process, can be induced in response to nutrient stress. It entails the degradation of cellular constituents through the lysosomal machinery, and its association with psoriasis has been well-documented. Nevertheless, there remains a notable dearth of research concerning the involvement of autophagy in the pathogenesis of psoriasis within human skin. This review provides a comprehensive overview of autophagy in psoriasis pathogenesis, focusing on its involvement in two key pathological manifestations: sustained inflammation and uncontrolled keratinocyte proliferation and differentiation. Additionally, it discusses potential avenues for disease management.
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Affiliation(s)
- Xinxin Wu
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai 200443, China
| | - Jiankun Song
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai 200443, China
| | - Ying Zhang
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai 200443, China
| | - Le Kuai
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China; Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 201203, China
| | - Changya Liu
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai 200030, China
| | - Xin Ma
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai 200443, China; Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Bin Li
- Shanghai Skin Disease Hospital, Institute of Dermatology, School of Medicine, Tongji University, Shanghai 200443, China; Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhan Zhang
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China; Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Ying Luo
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China; Institute of Dermatology, Shanghai Academy of Traditional Chinese Medicine, Shanghai 201203, China.
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Gu H, Wang X, Lu M, Wang Y, Ren K, Zhang Y, Liu W, Hu G, Zeng W, Xia Y. Interferon-Alpha Induces Psoriatic Inflammation in Mice by Phosphorylating FOXO3. J Interferon Cytokine Res 2024; 44:260-270. [PMID: 38563809 DOI: 10.1089/jir.2023.0225] [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] [Indexed: 04/04/2024] Open
Abstract
Psoriasis is a chronic, immune-mediated inflammatory skin disease characterized by epidermal thickening and inflammatory cell infiltration. Excessive proliferation of keratinocytes and resistance to apoptosis lead to thickening of the epidermis. Plasmacytoid dendritic cells are involved in the occurrence of psoriasis mainly by secreting interferon-alpha (IFN-α). IFN-α is a glycoprotein with antiviral, antitumor, and immunomodulatory effects, but its role in psoriasis remains unclear. In this investigation, a mild psoriatic phenotype was observed in mice upon topical application of IFN-α cream, and the inflammation was exacerbated when combined with imiquimod (IMQ). Immunohistochemical analyses demonstrated that IFN-α induces psoriatic inflammation in mice by stimulating phosphorylation of forkhead box O3, consistent with the involvement of this protein in cell proliferation, apoptosis, and inflammation. Our results suggested that topical IFN-α caused psoriatic inflammation and that the psoriatic inflammation was exacerbated by the combination of IFN-α and IMQ, possibly due to the dysfunction of forkhead box O3.
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Affiliation(s)
- Hanjiang Gu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaoyu Wang
- Department of Dermatology, Jinling Hospital, Nanjing, China
| | - Mei Lu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yaqi Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Kaixuan Ren
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yitian Zhang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Liu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Guanglei Hu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Weihui Zeng
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Kar BR, Sathishkumar D, Tahiliani S, Parthasarathi A, Neema S, Ganguly S, Venkatachalam K, Parasramani SG, Komeravelli H, Thomas J. Biomarkers in Psoriasis: The Future of Personalised Treatment. Indian J Dermatol 2024; 69:256-263. [PMID: 39119310 PMCID: PMC11305507 DOI: 10.4103/ijd.ijd_167_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024] Open
Abstract
Psoriasis is a chronic and complex immune-mediated papulosquamous disease affecting almost 2% of the world population. The interaction between a genetically predisposed individual and environmental triggers leads to a vicious cycle involving autoreactive T cells, dendritic cells, keratinocytes and dermal cells. Up to 40% of the psoriasis cases develop disabling psoriatic arthritis and an equal number of patients also tend to develop metabolic syndrome as well as cardiovascular comorbidities; hence, this is no more considered to be a disease limited to skin only. Being a systemic disease, there is an urgent need to develop potential biomarkers for the assessment of disease severity, prediction of outcome of the therapeutic intervention and association with various systemic comorbidities. Diverse genetic markers not only function as predictors of diseases pathogenesis, but also help to predict development of psoriasis and psoriatic arthritis. Personalised medicine is customising the therapeutic needs of a psoriasis patient and improving the outcome as per the hints we receive from the various biomarkers. This review deals with the list of potential biomarkers proposed to be useful in psoriasis, though there is limited data validating their routine use in clinical practice and the progress so far made in the field of precision medicine for psoriasis.
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Affiliation(s)
- Bikash R. Kar
- From the Department of DVL, IMS and SUM Hospital, Bhubaneswar, Odisha, India
| | | | - Sushil Tahiliani
- Senior Consultatnt, P. D. Hinduja Hospital and Research Centre, Mumbai, Maharashtra, India
| | | | | | | | | | | | | | - Jaykar Thomas
- Senior Consultant Dermatologist at Apollo Hospitals & KK Child Trust Hospital, Chennai, Tamil Nadu, India
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Oxymatrine ameliorates imiquimod-induced psoriasis pruritus and inflammation through inhibiting heat shock protein 90 and heat shock protein 60 expression in keratinocytes. Toxicol Appl Pharmacol 2020; 405:115209. [PMID: 32835761 DOI: 10.1016/j.taap.2020.115209] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 08/10/2020] [Accepted: 08/19/2020] [Indexed: 12/18/2022]
Abstract
In this work, we aimed to investigate whether oxymatrine exerts its anti-pruritic and anti-inflammatory efficacy in the imiquimod-induced psoriasis mice and the related mechanism. We established the psoriasis model by applying the imiquimod ointment topically and oxymatrine was injected intraperitoneally as the treatment. The behavior and skin morphology results indicated that oxymatrine inhibits imiquimod-induced pruritus alleviating keratinization of skin and inflammatory infiltration. Moreover, we examined the expression of various indicators and found heat shock protein (HSP) 90 and 60 upregulated in model group, which were reversed in oxymatrine treated groups. Molecular docking and the studies in vivo confirmed that HSP90 and HSP60 participate in the inhibitory effect of oxymatrine on the phenotypes of psoriasis mice. Mechanically, immunofluorescence staining demonstrated that oxymatrine-induced downregulation of HSP90 and HSP60 was mainly in keratinocytes. In vitro results showed that oxymatrine decreases the expression of HSP90 and HSP60 upregulated by TNF-α and IFN-γ in HaCaTs cells and the siRNA mediated HSP90 and HSP60 silencing reverses inflammation inhibited by oxymatrine. Taken together, these results indicate that oxymatrine relieves psoriasis pruritic and inflammation by inhibiting the expression of HSP90 and HSP60 in keratinocytes through MAPK signaling pathway.
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El-Boghdady NA, Ismail MF, Abd-Alhameed MF, Ahmed AS, Ahmed HH. Bidirectional Association Between Psoriasis and Obesity: Benefits and Risks. J Interferon Cytokine Res 2017; 38:12-19. [PMID: 29252076 DOI: 10.1089/jir.2017.0105] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Psoriasis is a chronic, immune-mediated inflammatory skin disease that is associated with several comorbidities such as obesity. This study was designed to estimate the possibility of utilizing psoriasin, nestin, keratin-16 (Krt16), and interleukin-21 (IL-21) as biochemical markers of psoriasis, to correlate these candidate psoriatic markers with biomarkers of obesity [body mass index (BMI), leptin, and resistin], and to elucidate the bidirectional association between obesity and psoriasis. Blood samples were collected from all participants (n = 108) who were classified according to their BMI into 4 groups: healthy control, obese, psoriatic, and obese psoriatic group. Plasma psoriasin, nestin, Krt16, IL-21, leptin, and resistin were estimated for all subjects. Psoriasin, nestin, Krt16, IL-21, leptin, and resistin were significantly elevated in psoriatic and obese psoriatic groups. However, only leptin, resistin, IL-21, and Krt16 were significantly increased in the obese group compared with the control group. Leptin and resistin showed significant positive correlations with psoriasis area and severity index score, psoriasin, nestin, Krt16, and IL-21. Cutoff values for psoriasin, nestin, Krt16, and IL-21 were 187.5 ng/mL, 1825 pg/mL, 33.1 ng/mL, and 128.6 ng/L, respectively. In conclusion, psoriasin, nestin, Krt16, and IL-21 can be utilized as biochemical markers of psoriasis; these psoriatic markers are significantly positively correlated with obesity biomarkers, and obesity can be considered a risk factor and/or consequence of psoriasis.
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Affiliation(s)
- Noha A El-Boghdady
- 1 Biochemistry Department, Faculty of Pharmacy, Cairo University , Cairo, Egypt
| | - Manal F Ismail
- 1 Biochemistry Department, Faculty of Pharmacy, Cairo University , Cairo, Egypt
| | | | - Amira S Ahmed
- 3 Hormone Department, National Research Centre , Cairo, Egypt
| | - Hanaa H Ahmed
- 3 Hormone Department, National Research Centre , Cairo, Egypt
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Akinduro O, Sully K, Patel A, Robinson DJ, Chikh A, McPhail G, Braun KM, Philpott MP, Harwood CA, Byrne C, O'Shaughnessy RFL, Bergamaschi D. Constitutive Autophagy and Nucleophagy during Epidermal Differentiation. J Invest Dermatol 2016; 136:1460-1470. [PMID: 27021405 DOI: 10.1016/j.jid.2016.03.016] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 02/26/2016] [Accepted: 03/08/2016] [Indexed: 12/19/2022]
Abstract
Epidermal keratinocytes migrate through the epidermis up to the granular layer where, on terminal differentiation, they progressively lose organelles and convert into anucleate cells or corneocytes. Our report explores the role of autophagy in ensuring epidermal function providing the first comprehensive profile of autophagy marker expression in developing epidermis. We show that autophagy is constitutively active in the epidermal granular layer where by electron microscopy we identified double-membrane autophagosomes. We demonstrate that differentiating keratinocytes undergo a selective form of nucleophagy characterized by accumulation of microtubule-associated protein light chain 3/lysosomal-associated membrane protein 2/p62 positive autolysosomes. These perinuclear vesicles displayed positivity for histone interacting protein, heterochromatin protein 1α, and localize in proximity with Lamin A and B1 accumulation, whereas in newborn mice and adult human skin, we report LC3 puncta coincident with misshaped nuclei within the granular layer. This process relies on autophagy integrity as confirmed by lack of nucleophagy in differentiating keratinocytes depleted from WD repeat domain phosphoinositide interacting 1 or Unc-51 like autophagy activating kinase 1. Final validation into a skin disease model showed that impaired autophagy contributes to the pathogenesis of psoriasis. Lack of LC3 expression in psoriatic skin lesions correlates with parakeratosis and deregulated expression or location of most of the autophagic markers. Our findings may have implications and improve treatment options for patients with epidermal barrier defects.
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Affiliation(s)
- Olufolake Akinduro
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Katherine Sully
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Ankit Patel
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Deborah J Robinson
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Anissa Chikh
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Graham McPhail
- EM Service, Blizard Institute Pathology Core Facility, Cellular Pathology Department, Royal London Hospital, London, UK
| | - Kristin M Braun
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Michael P Philpott
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Catherine A Harwood
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Carolyn Byrne
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Ryan F L O'Shaughnessy
- Livingstone Skin Research Centre for Children, UCL Institute of Child Health, London, UK; Department of Immunobiology, UCL Institute of Child Health, London, UK
| | - Daniele Bergamaschi
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
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Luo X, Jin R, Wang F, Jia B, Luan K, Cheng FW, Li L, Sun LD, Yang S, Zhang SQ, Zhang XJ. Interleukin-15 inhibits the expression of differentiation markers induced by Ca2+in keratinocytes. Exp Dermatol 2016; 25:544-7. [PMID: 26914593 DOI: 10.1111/exd.12992] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Xin Luo
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
| | - Rui Jin
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
| | - Fang Wang
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
| | - Bo Jia
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
| | - Kang Luan
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
| | - Feng-Wei Cheng
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
| | - Lei Li
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
| | - Liang-Dan Sun
- Institute of Dermatology at the 1st Hospital; Anhui Medical University; Hefei Anhui China
| | - Sen Yang
- Institute of Dermatology at the 1st Hospital; Anhui Medical University; Hefei Anhui China
| | - Sheng-Quan Zhang
- Department of Biochemistry and Molecular Biology; Anhui Medical University; Hefei Anhui China
- Institute of Dermatology at the 1st Hospital; Anhui Medical University; Hefei Anhui China
| | - Xue-Jun Zhang
- Institute of Dermatology at the 1st Hospital; Anhui Medical University; Hefei Anhui China
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Man XY, Chen XB, Li W, Landeck L, Dou TT, Chen JQ, Zhou J, Cai SQ, Zheng M. Analysis of epithelial-mesenchymal transition markers in psoriatic epidermal keratinocytes. Open Biol 2016; 5:rsob.150032. [PMID: 26269426 PMCID: PMC4554915 DOI: 10.1098/rsob.150032] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Psoriasis is similar to endpoints of epithelial–mesenchymal transition (EMT), a process of epithelial cells transformed into fibroblast-like cells. The molecular epithelial and mesenchymal markers were analysed in psoriatic keratinocytes. No obvious alteration of epithelial markers E-cadherin (E-cad), keratin 10 (K10), K14 and K16 was detected in psoriatic keratinocytes. However, significantly increased expression of Vim, FN, plasminogen activator inhibitor 1 (PAI-1) and Slug was seen. IL-17A and IL-13 at 50 ng ml−1 strongly decreased expression of K10, Vim and FN. TGF-β1 at 50 ng ml−1 promoted the production of N-cad, Vim, FN and PAI-1. Slug was decreased by dexamethasone (Dex), but E-cad was upregulated by Dex. Silencing of ERK partially increased E-cad and K16, but remarkably inhibited K14, FN, Vim, β-catenin, Slug and α5 integrin. Moreover, inhibition of Rho and GSK3 by their inhibitors Y27632 and SB216763, respectively, strongly raised E-cad, β-catenin and Slug. Dex decreased Y27632-mediated increase of β-catenin. Dex at 2.0 µM inhibited SB216763-regulated E-cad, β-catenin and slug. In conclusion, EMT in psoriatic keratinocytes may be defined as an intermediate phenotype of type 2 EMT. ERK, Rho and GSK3 play active roles in the process of EMT in psoriatic keratinocytes.
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Affiliation(s)
- Xiao-Yong Man
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
| | - Xi-Bei Chen
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
| | - Wei Li
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
| | - Lilla Landeck
- Department of Dermatology, Ernst von Bergmann General Hospital, Teaching Hospital of Charité-University, Potsdam, Germany
| | - Ting-Ting Dou
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
| | - Jia-Qi Chen
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
| | - Jiong Zhou
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
| | - Sui-Qing Cai
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
| | - Min Zheng
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, People's Republic of China
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Clark RK, Galantino-Homer HL. Wheat germ agglutinin as a counterstain for immunofluorescence studies of equine hoof lamellae. Exp Dermatol 2016; 23:677-8. [PMID: 25040657 DOI: 10.1111/exd.12495] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2014] [Indexed: 12/01/2022]
Abstract
Equine laminitis is a common, painful, debilitating condition of the hoof that is a leading cause of disability in horses, often necessitating euthanasia. The equine hoof represents an extreme evolutionary adaptation of an epidermal structure homologous to the human or murine nail units. Immunohistochemistry is frequently utilized in the study of the pathophysiology of laminitis. The complex, multilayered, extensively interdigitated epidermal-dermal lamellar interface renders precise interpretation of immunofluorescence localization difficult, especially when effective technique and reagents render non-reactive tissues completely dark. Fluorescent-conjugated wheat germ agglutinin (WGA) selectively labels dermal extracellular matrix fibres and epidermal cell membranes in tissue sections of horse hoof lamellae, is compatible with indirect immunofluorescence and augments interpretation of indirect immunofluorescence antigen localization. The current report details the use of WGA as a rapid, simple, economical counterstain for immunofluorescence studies of the equine hoof and may have application to other complex epidermal tissue structures.
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Affiliation(s)
- Robert K Clark
- Department of Clinical Studies, New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Kennett Square, PA, USA; STEM and Health Division, Cumberland County College, Vineland, NJ, USA
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Keren A, David M, Gilhar A. Novel nanosome delivery system combined with siRNA targeting the antimicrobial gene DFB4: a new approach for psoriasis management? Exp Dermatol 2015; 23:464-5. [PMID: 24673207 DOI: 10.1111/exd.12397] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2014] [Indexed: 01/02/2023]
Abstract
In a recently published issue of the journal, Bracke et al. demonstrate an impressive improvement in psoriasiform features in allogeneic human skin grafts transplanted onto immune-deficient mice. This improvement was achieved using a novel nanosome (SECosome) as a vehicle for delivering topically applied siRNA to human epidermis. Targeting the gene DFB4 with this delivery system, they prevented translation of the antimicrobial peptide, human β defensin-2(hBD2), thus normalizing the psoriasiform epidermal phenotype of siRNA/SECosome-treated human skin grafts. This study encourages the exploration of topical gene silencing strategies in dermatology and refocuses our attention on both, the role of hBD2 in psoriasis pathogenesis and the thorny question which animal model reflects human psoriasis most faithfully.
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Affiliation(s)
- Aviad Keren
- Skin Research Laboratory, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
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Orro K, Smirnova O, Arshavskaja J, Salk K, Meikas A, Pihelgas S, Rumvolt R, Kingo K, Kazarjan A, Neuman T, Spee P. Development of TAP, a non-invasive test for qualitative and quantitative measurements of biomarkers from the skin surface. Biomark Res 2014; 2:20. [PMID: 25785188 PMCID: PMC4362816 DOI: 10.1186/2050-7771-2-20] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 10/02/2014] [Indexed: 02/01/2023] Open
Abstract
Background The skin proteome contains valuable information on skin condition, but also on how skin may evolve in time and may respond to treatments. Despite the potential of measuring regulatory-, effector- and structural proteins in the skin for biomarker applications in clinical dermatology and skin care, convenient diagnostic tools are lacking. The aim of the present study was to develop a highly versatile and non-invasive diagnostic tool for multiplex measurements of protein biomarkers from the surface of skin. Results The Transdermal Analyses Patch (TAP) is a novel molecular diagnostic tool that has been developed to capture biomarkers directly from skin, which are quantitatively analyzed in spot-ELISA assays. Optimisation of protocols for TAP production and biomarker analyses makes TAP measurements highly specific and reproducible. In measurements of interleukin-1α (IL-1α), IL-1 receptor antagonist (IL-1RA) and human β-defensin (hBD-1) from healthy skin, TAP appears far more sensitive than skin lavage-based methods using ELISA. No side-effects were observed using TAP on human skin. Conclusion TAP is a practical and valuable new skin diagnostic tool for measuring protein-based biomarkers from skin, which is convenient to use for operators, with minimal burden for patients.
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Affiliation(s)
- Kadri Orro
- FibroTx LLC, Mäealuse 4, 12918 Tallinn, Estonia
| | | | | | | | - Anne Meikas
- FibroTx LLC, Mäealuse 4, 12918 Tallinn, Estonia
| | | | | | - Külli Kingo
- Dermatology Clinic, Tartu University Hospital, Raja 31, 50407 Tartu, Estonia
| | | | | | - Pieter Spee
- FibroTx LLC, Mäealuse 4, 12918 Tallinn, Estonia ; PS! Pharmaconsult, Møllemoseparken 44, 3450 Allerød, Denmark
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Günther C, Blau K, Förster U, Viehweg A, Wozel G, Schäkel K. Reduction of inflammatory slan (6-sulfo LacNAc) dendritic cells in psoriatic skin of patients treated with etanercept. Exp Dermatol 2014; 22:535-40. [PMID: 23879812 DOI: 10.1111/exd.12190] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2013] [Indexed: 12/22/2022]
Abstract
Dermal dendritic cells (DCs) play a central role in the immunopathology of psoriasis. We previously identified slanDCs as pro-inflammatory TNF-α, IL-23- and IL-12-producing DCs in human blood and as prominent inflammatory dermal TNF-α secreting and CD11c-positive DC subset in psoriasis. Here, we ask for the effects of TNF-α-inhibition on inflammatory slanDCs in skin and blood of 10 patients with psoriasis during 24 weeks of treatment with etanercept. Treatment with etanercept reduced the frequency of dermal slanDCs but did not induce apoptosis as determined by lack of increased active caspase-3-expression. In parallel, we found increased frequencies of slanDCs in blood which expressed lower levels of HLA-DR. Stimulating slanDCs isolated from the blood of healthy donors in vitro induced a strong production of IL-1β, IL-6, IL-23 and IL-12p70. This capacity was efficiently reduced in the presence of etanercept, thereby indicating that TNF-α is an autocrine stimulus for maturation and pro-inflammatory cytokine production of slanDCs. In vivo, we noticed that treatment with etanercept did reduce the number of dermal slanDCs in parallel to the overall expression of TNF-α and IL-23p19. However, successful treatment did not down-regulated the percentage of dermal slanDCs that stained positive for TNF-α and IL-23p19 indicating that remaining slanDCs kept their pro-inflammatory capacity. This study provides novel insights into the immune regulatory properties of etanercept at the level of inflammatory slanDCs in vivo in skin and blood as well as in vitro.
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Affiliation(s)
- Claudia Günther
- Department of Dermatology, Technical University of Dresden, University Hospital, Dresden, Germany.
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13
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Lockmann A, Schön MP. TNFα-induced leukocyte-endothelial cell interactions show marked interindividual differences independent of the clinical response to adalimumab. Exp Dermatol 2014; 23:133-4. [DOI: 10.1111/exd.12283] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Anike Lockmann
- Department of Dermatology, Venereology and Allergology; University Medical Center; Georg August University; Göttingen Germany
| | - Michael P. Schön
- Department of Dermatology, Venereology and Allergology; University Medical Center; Georg August University; Göttingen Germany
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Ishitsuka Y, Kawachi Y, Maruyama H, Taguchi S, Fujisawa Y, Furuta J, Nakamura Y, Ishii Y, Otsuka F. Pituitary Tumor Transforming Gene 1 Induces Tumor Necrosis Factor-α Production from Keratinocytes: Implication for Involvement in the Pathophysiology of Psoriasis. J Invest Dermatol 2013; 133:2566-2575. [DOI: 10.1038/jid.2013.189] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 03/18/2013] [Accepted: 04/01/2013] [Indexed: 01/25/2023]
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15
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Meier NT, Haslam IS, Pattwell DM, Zhang GY, Emelianov V, Paredes R, Debus S, Augustin M, Funk W, Amaya E, Kloepper JE, Hardman MJ, Paus R. Thyrotropin-releasing hormone (TRH) promotes wound re-epithelialisation in frog and human skin. PLoS One 2013; 8:e73596. [PMID: 24023889 PMCID: PMC3759422 DOI: 10.1371/journal.pone.0073596] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 07/29/2013] [Indexed: 01/09/2023] Open
Abstract
There remains a critical need for new therapeutics that promote wound healing in patients suffering from chronic skin wounds. This is, in part, due to a shortage of simple, physiologically and clinically relevant test systems for investigating candidate agents. The skin of amphibians possesses a remarkable regenerative capacity, which remains insufficiently explored for clinical purposes. Combining comparative biology with a translational medicine approach, we report the development and application of a simple ex vivo frog (Xenopus tropicalis) skin organ culture system that permits exploration of the effects of amphibian skin-derived agents on re-epithelialisation in both frog and human skin. Using this amphibian model, we identify thyrotropin-releasing hormone (TRH) as a novel stimulant of epidermal regeneration. Moving to a complementary human ex vivo wounded skin assay, we demonstrate that the effects of TRH are conserved across the amphibian-mammalian divide: TRH stimulates wound closure and formation of neo-epidermis in organ-cultured human skin, accompanied by increased keratinocyte proliferation and wound healing-associated differentiation (cytokeratin 6 expression). Thus, TRH represents a novel, clinically relevant neuroendocrine wound repair promoter that deserves further exploration. These complementary frog and human skin ex vivo assays encourage a comparative biology approach in future wound healing research so as to facilitate the rapid identification and preclinical testing of novel, evolutionarily conserved, and clinically relevant wound healing promoters.
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Affiliation(s)
- Natalia T. Meier
- Department of Dermatology, University of Luebeck, Luebeck, Germany
- Department of Pathology, University of Luebeck, Luebeck, Germany
| | - Iain S. Haslam
- The Dermatology Centre, Salford Royal NHS Foundation Trust and Institute of Inflammation and Repair, School of Translational Medicine, University of Manchester, Manchester, United Kingdom
- * E-mail:
| | - David M. Pattwell
- The Dermatology Centre, Salford Royal NHS Foundation Trust and Institute of Inflammation and Repair, School of Translational Medicine, University of Manchester, Manchester, United Kingdom
| | - Guo-You Zhang
- Department of Dermatology, University of Luebeck, Luebeck, Germany
- Department of Hand and Plastic Surgery, the Second Affiliated Hospital of Wenzhou Medical College, Wenzhou, Zhejiang Province, China
| | | | - Roberto Paredes
- The Healing Foundation Centre, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Sebastian Debus
- Department of Vascular Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Matthias Augustin
- Center for Dermatological Research, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | | | - Enrique Amaya
- The Healing Foundation Centre, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | | | - Matthew J. Hardman
- The Healing Foundation Centre, Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
| | - Ralf Paus
- Department of Dermatology, University of Luebeck, Luebeck, Germany
- The Dermatology Centre, Salford Royal NHS Foundation Trust and Institute of Inflammation and Repair, School of Translational Medicine, University of Manchester, Manchester, United Kingdom
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16
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Kupetsky EA, Mathers AR, Ferris LK. Anti-cytokine therapy in the treatment of psoriasis. Cytokine 2013; 61:704-12. [DOI: 10.1016/j.cyto.2012.12.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 12/19/2012] [Accepted: 12/28/2012] [Indexed: 12/23/2022]
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17
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Ramot Y, Sugawara K, Zákány N, Tóth BI, Bíró T, Paus R. A novel control of human keratin expression: cannabinoid receptor 1-mediated signaling down-regulates the expression of keratins K6 and K16 in human keratinocytes in vitro and in situ. PeerJ 2013; 1:e40. [PMID: 23638377 PMCID: PMC3628749 DOI: 10.7717/peerj.40] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 01/28/2013] [Indexed: 12/23/2022] Open
Abstract
Cannabinoid receptors (CB) are expressed throughout human skin epithelium. CB1 activation inhibits human hair growth and decreases proliferation of epidermal keratinocytes. Since psoriasis is a chronic hyperproliferative, inflammatory skin disease, it is conceivable that the therapeutic modulation of CB signaling, which can inhibit both proliferation and inflammation, could win a place in future psoriasis management. Given that psoriasis is characterized by up-regulation of keratins K6 and K16, we have investigated whether CB1 stimulation modulates their expression in human epidermis. Treatment of organ-cultured human skin with the CB1-specific agonist, arachidonoyl-chloro-ethanolamide (ACEA), decreased K6 and K16 staining intensity in situ. At the gene and protein levels, ACEA also decreased K6 expression of cultured HaCaT keratinocytes, which show some similarities to psoriatic keratinocytes. These effects were partly antagonized by the CB1-specific antagonist, AM251. While CB1-mediated signaling also significantly inhibited human epidermal keratinocyte proliferation in situ, as shown by K6/Ki-67-double immunofluorescence, the inhibitory effect of ACEA on K6 expression in situ was independent of its anti-proliferative effect. Given recent appreciation of the role of K6 as a functionally important protein that regulates epithelial wound healing in mice, it is conceivable that the novel CB1-mediated regulation of keratin 6/16 revealed here also is relevant to wound healing. Taken together, our results suggest that cannabinoids and their receptors constitute a novel, clinically relevant control element of human K6 and K16 expression.
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Affiliation(s)
- Yuval Ramot
- Department of Dermatology, University of Luebeck, Luebeck, Germany.,Department of Dermatology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Koji Sugawara
- Department of Dermatology, University of Luebeck, Luebeck, Germany.,Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Nóra Zákány
- Department of Dermatology, University of Luebeck, Luebeck, Germany.,DE-MTA "Lendület" Cellular Physiology Research Group, Department of Physiology, MHSC, RCMM, University of Debrecen, Debrecen, Hungary
| | - Balázs I Tóth
- DE-MTA "Lendület" Cellular Physiology Research Group, Department of Physiology, MHSC, RCMM, University of Debrecen, Debrecen, Hungary.,Laboratory of Ion Channel Research and TRP Research Platform Leuven (TRPLe), Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Tamás Bíró
- DE-MTA "Lendület" Cellular Physiology Research Group, Department of Physiology, MHSC, RCMM, University of Debrecen, Debrecen, Hungary
| | - Ralf Paus
- Department of Dermatology, University of Luebeck, Luebeck, Germany.,Institute of Inflammation and Repair, and Dermatology Centre, University of Manchester, Manchester, UK
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