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Huang Y, Zhou W, Liu S, Zeng D, Zhou W. Association between polymorphisms and atopic dermatitis susceptibility: A systematic review and meta-analysis. Gene 2024; 913:148397. [PMID: 38513928 DOI: 10.1016/j.gene.2024.148397] [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: 12/10/2023] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
AIM Atopic dermatitis (AD) is a chronic pruritic inflammatory skin disease that is closely linked to genetic factors. Previous studies have revealed numerous single nucleotide polymorphisms (SNPs) that been related to susceptibility to AD; however, the results are conflicting. Therefore, a meta-analysis was conducted to assess the associations of these polymorphisms and AD risk. MATERIAL AND METHODS PubMed, Web of Science, Embase, Cochrane Library, and China National Knowledge Infrastructure databases were retrieved to identify eligible studies, with selected polymorphisms being reported in a minimum of three separate studies. The Newcastle-Ottawa Scale (NOS) was used to evaluate study quality. Review Manager 5.3 and STATA 14.0 were used to perform the meta-analysis. RESULTS After screening, 64 studies involving 13 genes (24 SNPs) were selected for inclusion in the meta-analysis. Nine SNPs were positively correlated with AD susceptibility [filaggrin (FLG) R501X, FLG 2282del4, chromosome 11q13.5 rs7927894, interleukin (IL)-17A rs2275913, IL-18 -137 G/C, Toll-like receptor 2 (TLR2) rs5743708, TLR2 A-16934 T, serine protease inhibitor Kazal type-5 (SPINK5) Asn368Ser, interferon-γ (IFN-γ) T874A] and one was negatively associated with AD susceptibility (IL-4 -1098 T/G). The 14 remaining SNPs were not significantly associated with AD susceptibility. CONCLUSIONS Nine SNPs that may be risk factors and one SNP that may be a protective factor for AD were identified, providing a reference for AD prediction, prevention, and therapy.
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Affiliation(s)
- Yunxia Huang
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Department of Allergy, Chongqing General Hospital, Chongqing 400014, China
| | - Wei Zhou
- Department of Allergy, Chongqing General Hospital, Chongqing 400014, China
| | - Shunan Liu
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Department of Allergy, Chongqing General Hospital, Chongqing 400014, China
| | - Dan Zeng
- Department of Allergy, Chongqing General Hospital, Chongqing 400014, China
| | - Weikang Zhou
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Department of Allergy, Chongqing General Hospital, Chongqing 400014, China.
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Dragan M, Sun P, Chen Z, Ma X, Vu R, Shi Y, Villalta SA, Dai X. Epidermis-Intrinsic Transcription Factor Ovol1 Coordinately Regulates Barrier Maintenance and Neutrophil Accumulation in Psoriasis-Like Inflammation. J Invest Dermatol 2022; 142:583-593.e5. [PMID: 34461129 PMCID: PMC9968377 DOI: 10.1016/j.jid.2021.08.397] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/22/2021] [Accepted: 08/13/2021] [Indexed: 12/30/2022]
Abstract
Skin epidermis constitutes the exterior barrier that protects the body from dehydration and environmental assaults. Barrier defects underlie common inflammatory skin diseases, but the molecular mechanisms that maintain barrier integrity and regulate epidermal-immune cell cross-talk in inflamed skin are not fully understood. In this study, we show that skin epithelia-specific deletion of Ovol1, which encodes a skin disease‒linked transcriptional repressor, impairs the epidermal barrier and aggravates psoriasis-like skin inflammation in mice in part by enhancing neutrophil accumulation and abscess formation. Through molecular studies, we identify IL-33, a cytokine with known pro-inflammatory and anti-inflammatory activities, and Cxcl1, a neutrophil-attracting chemokine, as potential weak and strong direct targets of Ovol1, respectively. Furthermore, we provide functional evidence that elevated Il33 expression reduces disease severity in imiquimod-treated Ovol1-deficient mice, whereas persistent accumulation and epidermal migration of neutrophils exacerbate it. Collectively, our study uncovers the importance of an epidermally expressed transcription factor that regulates both the integrity of the epidermal barrier and the behavior of neutrophils in psoriasis-like inflammation.
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Affiliation(s)
- Morgan Dragan
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, California, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, California, USA; Institute for Immunology, University of California, Irvine, Irvine, California, USA
| | - Peng Sun
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, California, USA
| | - Zeyu Chen
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, California, USA; Department of Dermatology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China; Institute of Psoriasis, School of Medicine, Tongji University, Shanghai, China
| | - Xianghui Ma
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, California, USA
| | - Remy Vu
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, California, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, California, USA
| | - Yuling Shi
- Institute of Psoriasis, School of Medicine, Tongji University, Shanghai, China; Department of Dermatology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, China
| | - S Armando Villalta
- Institute for Immunology, University of California, Irvine, Irvine, California, USA; Department of Physiology & Biophysics, School of Medicine, University of California, Irvine, Irvine, California, USA
| | - Xing Dai
- Department of Biological Chemistry, School of Medicine, University of California, Irvine, Irvine, California, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, California, USA; Institute for Immunology, University of California, Irvine, Irvine, California, USA.
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Qurashi TA, Bhat GA, Khan MS, Rasool R, Sameen F, Hassan I, Mudassar S. Interleukin 4 and Interleukin 4 receptor alpha gene variants and risk of atopy - A case control study based assessment. Clin Immunol 2021; 229:108783. [PMID: 34129931 DOI: 10.1016/j.clim.2021.108783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/12/2021] [Accepted: 06/08/2021] [Indexed: 12/20/2022]
Abstract
INTRODUCTION IL4 pathway is known to upregulate IgE mediated immune responses and responsible for the manifestation of Atopic disorders. The current study was aimed to elucidate the genetic variations of Interleukin 4 (IL4) and Interleukin 4 receptor alpha (IL4R) genes and their possible association with atopic subjects. METHODS The well-designed questionnaire was used to collect the subject demographic and clinical details. Biochemical parameters were analysed using Chemiluminescent Immunoassay (CLIA) technique. The genotyping was performed using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP). RESULTS We observed a statistically significant difference of serum Immunoglobulin-E (IgE) levels among cases and controls (P<0.05). Subjects harbouring the variant genotypes of I50V and Q576R single nucleotide polymorphisms (SNPs) in IL4R gene showed statistically differential risk towards atopic disorders. However, the variants genotype of 70 bp VNTR polymorphism in IL4 gene showed a protective role towards in predisposition to Atopy. On stratification, the above genetic variants had a significant impact on modifiable and non-modifiable factors associated with the disease. CONCLUSION Our study demonstrates that increased IgE levels and IL4 gene variants (I50V and Q576R) are significantly associated towards predisposition to allergic disorders in this study population.
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Affiliation(s)
- Taha Ashraf Qurashi
- Department of Clinical Biochemistry, Sher-I-Kashmir Institute of Medical Sciences (SKIMS), Soura, 190011, J&K, India
| | - Gulzar Ahmad Bhat
- Department of Clinical Biochemistry, Sher-I-Kashmir Institute of Medical Sciences (SKIMS), Soura, 190011, J&K, India
| | - Mosin Saleem Khan
- Department of Clinical Biochemistry, Sher-I-Kashmir Institute of Medical Sciences (SKIMS), Soura, 190011, J&K, India
| | - Roohi Rasool
- Department of Immunology and Molecular Medicine, Sher-I-Kashmir Institute of Medical Sciences (SKIMS), Soura, 190011, J&K, India
| | - Farah Sameen
- Department of Dermatology, SKIMS Medical College, Bemina, 190018, J&K, India
| | - Iffat Hassan
- Department of Dermatology & Venereal Diseases, Govt. Medical College Srinagar and Associated Hospitals, Karan Nagar, 190010, J&K, India
| | - Syed Mudassar
- Department of Clinical Biochemistry, Sher-I-Kashmir Institute of Medical Sciences (SKIMS), Soura, 190011, J&K, India.
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Abstract
Atopic dermatitis (AD) is a common frequent chronic inflammatory skin disease which begins frequently in infancy. The clinical expression of AD is a recurrent eczema on a dry skin. AD is a multifactorial disease characterized by two linked abnormalities: a skin barrier defect and a cellular inflammation, with type-2 main components. However, the pathophysiology of AD is not as simple as this description looks like. In this review, we will present a synthesis of current knowledge on natural history of AD and the involved factors, in order to clarify AD care. The evolution of AD is associated with many atopic comorbidities, following the "atopic march" scheme: IgE-mediated food allergy, allergic asthma and rhinitis occurring classically after AD. In fact, this is rarely the case, but the atopic march seems to be associated with AD severity. AD has also many neuropsychological complications which are essential to be detected. Other factors could influence the natural history of AD: genetic mutations on different genes (proteins of skin barrier, innate and adaptive immunity pathways), skin dysbiosis with colonization by Staphylococcus aureus, sensitization against environmental proteins. AD treatment is based on the restauration of the skin barrier using emollients and on anti-inflammatory drugs (notably topical corticosteroids) during the inflammatory flares. It is not recommended to treat the skin colonization by S. aureus, excepted in case of skin infection. The probiotics have no efficiency as curative treatment of AD, but could have an interest for the primary prevention, especially in at-risk populations. © 2019 Elsevier Masson SAS. All rights reserved.
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Affiliation(s)
- C Braun
- Centre international de recherche en infectiologie (CIRI) (International Center for Infectiology Research), INSERM U1111, CNRS UMR 5308, 21 avenue Tony-Garnier, 69007 Lyon, France; Hospices civils de Lyon, service de pneumologie et allergologie pédiatriques, hôpital Femme-Mère-Enfant, Bron, France.
| | - A Nosbaum
- Centre international de recherche en infectiologie (CIRI) (International Center for Infectiology Research), INSERM U1111, CNRS UMR 5308, 21 avenue Tony-Garnier, 69007 Lyon, France; Hospices civils de Lyon, service d'allergologie et immunologie clinique, centre hospitalier Lyon-Sud, Pierre-Bénite, France
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5
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Yuan WY, Li LQ, Chen YY, Zhou YJ, Bao KF, Zheng J, Hua YQ, Jiang GR, Hong M. Frontline Science: Two flavonoid compounds attenuate allergic asthma by regulating epithelial barrier via G protein-coupled estrogen receptor: Probing a possible target for allergic inflammation. J Leukoc Biol 2020; 108:59-71. [PMID: 32303124 DOI: 10.1002/jlb.3hi0220-342rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/29/2020] [Accepted: 03/19/2020] [Indexed: 12/12/2022] Open
Abstract
Allergic asthma is a common chronic lung inflammatory disease and seriously influences public health. We aim to investigate the effects of formononetin (FMN) and calycosin (CAL), 2 flavonoids in Radix Astragali, on allergic asthma and elucidate possible therapeutic targets. A house dust mite (HDM)-induced allergic asthma mouse model and TNF-α and Poly(I:C) co-stimulated human bronchial epithelial cell line (16HBE) were performed respectively in vivo and in vitro. The role of G protein-coupled estrogen receptor (GPER) was explored by its agonist, antagonist, or GPER small interfering RNA (siGPER). E-cadherin, occludin, and GPER were detected by western blotting, immunohistochemistry, or immunofluorescence. The epithelial barrier integrity was assessed by trans-epithelial electric resistance (TEER). Cytokines were examined by enzyme-linked immunosorbent assay (ELISA). The results showed that flavonoids attenuated pulmonary inflammation and hyperresponsiveness in asthmatic mice. These flavonoids significantly inhibited thymic stromal lymphopoietin (TSLP), increased occludin and restored E-cadherin in vivo and in vitro. The effects of flavonoids on occludin and TSLP were not interfered by ICI182780 (estrogen receptor antagonist), while blocked by G15 (GPER antagonist). Furthermore, compared with PPT (ERα agonist) and DPN (ERβ agonist), G1 (GPER agonist) significantly inhibited TSLP, up-regulated occludin, and restored E-cadherin. siGPER and TEER assays suggested that GPER was pivotal for the flavonoids on the epithelial barrier integrity. Finally, G1 attenuated allergic lung inflammation, which could be abolished by G15. Our data demonstrated that 2 flavonoids in Radix Astragali could alleviate allergic asthma by protecting epithelial integrity via regulating GPER, and activating GPER might be a possible therapeutic strategy against allergic inflammation.
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Affiliation(s)
- Wei-Yuan Yuan
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China.,Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Suzhou, China
| | - Lian-Qu Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yan-Yan Chen
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yi-Jing Zhou
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Kai-Fan Bao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jie Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China.,Department of Pharmacology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yong-Qing Hua
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Guo-Rong Jiang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Suzhou, China
| | - Min Hong
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
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6
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47/w mit exkoriierten Papeln und erythematösen, teils lichenifizierten Arealen am Stamm und an den Armen. Hautarzt 2019; 70:100-102. [DOI: 10.1007/s00105-019-4374-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Zheng J, Wang X, Tao Y, Wang Y, Yu X, Liu H, Ji L, Bao K, Wang C, Jia Z, Hong M. Yu-Ping-Feng-San ameliorates recurrent allergic inflammation of atopic dermatitis by repairing tight junction defects of the epithelial barrier. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 54:214-223. [PMID: 30668371 DOI: 10.1016/j.phymed.2018.09.190] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 08/04/2018] [Accepted: 09/17/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is a common allergic inflammatory skin disease, concomitant with a high relapse rate. Yu-Ping-Feng-San (YPFS), a well-known Chinese herbal decoction, reduces the AD relapse rate and recurring severity incidence. However, the underlying mechanism of YPFS on resisting AD recurrence is still unknown and further study is needed. PURPOSE To evaluate the effects of YPFS on recurrent allergic inflammation of AD in a murine model and to investigate the underlying mechanisms in vivo and ex vivo. METHODS A fluorescein isothiocyanate (FITC)-induced AD relapsing mouse model was established to study the effects of YPFS and three active components, claycosin, formononetin, and cimifugin, on recurrent allergic inflammation in vivo. Histological analyses of ear tissue inflammation were evaluated by hematoxylin and eosin staining. Production of interleukin (IL)-4, IL-5, IL-13, and interferon-gamma in mice ear tissues, IgE in serum, and thymic stromal lymphopoietin (TSLP) in cell cultures were measured by ELISAs. Tight junction (TJ) expression was detected by immunohistochemistry and western blots. Epithelial barrier integrity was observed with electron microscopy, transepithelial electric resistance (TER), and paracellular flux measurements. HaCaT cells were utilized for ex vivo cellular analyses. RESULTS In the recurrent phase of AD, YPFS exhibited both short- and long-term anti-allergic inflammatory efficacy with reduced ear tissue inflammation and decreased IL-4, IL-5, IL-13, and IgE production. The three active components, claycosin, formononetin, and cimifugin, showed similar effects as YPFS. Stimulus-induced decreased TER and increased FITC-dextran flux in air-liquid interface cultures of HaCaT cells were significantly repaired by YPFS and the three active components. Notably, the upregulated TJ (CLDN-1 and occludin) expression of epithelium was observed only with YPFS and the three components-treated mice as opposed to the result using conventional anti-allergy medicines. Restored TJ expression by YPFS three components was also detectable in the remission phase of AD. Moreover, decreased TJ expression influenced the effects of YPFS on epithelial cells-derived TSLP production. CONCLUSIONS YPFS ameliorated recurrent allergic inflammation of AD by repairing TJ defects of epithelial barriers. Intervening epithelial barrier functions could be a preventive and therapeutic approach for recurrent allergic inflammation of AD.
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Affiliation(s)
- Jie Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Department of Pharmacology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaoyu Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu Tao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yan Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xi Yu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hailiang Liu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Lv Ji
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Kaifan Bao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Can Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhirong Jia
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Min Hong
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Chan CWH, Leung TF, Chow KM, Wong CL, Choi KC, Chan JYW. Association of toll-like receptor 5 polymorphisms (rs5744174 and rs851139) and eczema: a pilot birth cohort study in Hong Kong newborn babies. Int J Dermatol 2018; 57:e134-e135. [PMID: 30074616 DOI: 10.1111/ijd.14177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 07/17/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Carmen Wing Han Chan
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Ting Fan Leung
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Ka Ming Chow
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Cho Lee Wong
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Kai Chow Choi
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Judy Yuet Wa Chan
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
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TWEAK mediates inflammation in experimental atopic dermatitis and psoriasis. Nat Commun 2017; 8:15395. [PMID: 28530223 PMCID: PMC5493595 DOI: 10.1038/ncomms15395] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 03/27/2017] [Indexed: 02/06/2023] Open
Abstract
Atopic dermatitis (AD) and psoriasis are driven by alternate type 2 and type 17 immune responses, but some proteins might be critical to both diseases. Here we show that a deficiency of the TNF superfamily molecule TWEAK (TNFSF12) in mice results in defective maintenance of AD-specific T helper type 2 (Th2) and psoriasis-specific Th17 cells in the skin, and impaired expression of disease-characteristic chemokines and cytokines, such as CCL17 and TSLP in AD, and CCL20 and IL-19 in psoriasis. The TWEAK receptor, Fn14, is upregulated in keratinocytes and dermal fibroblasts, and TWEAK induces these cytokines and chemokines alone and in synergy with the signature T helper cytokines of either disease, IL-13 and IL-17. Furthermore, subcutaneous injection of recombinant TWEAK into naive mice induces cutaneous inflammation with histological and molecular signs of both diseases. TWEAK is therefore a critical contributor to skin inflammation and a possible therapeutic target in AD and psoriasis.
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Liang J, Liu Y, Xue R, Chen L, Chen H, Shao L, Wang J, Zhang X. Interleukin 4 –590C/T (rs2243250) Polymorphism Is Associated With Increased Risk of Atopic Dermatitis: Meta-Analysis of Case-Control Studies. Dermatitis 2017; 28:144-151. [DOI: 10.1097/der.0000000000000265] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Lee HJ, Lee NR, Kim BK, Jung M, Kim DH, Moniaga CS, Kabashima K, Choi EH. Acidification of stratum corneum prevents the progression from atopic dermatitis to respiratory allergy. Exp Dermatol 2016; 26:66-72. [DOI: 10.1111/exd.13144] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Hae-Jin Lee
- Department of Dermatology; Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul Korea
| | - Noo Ri Lee
- Department of Dermatology; Yonsei University Wonju College of Medicine; Wonju Korea
| | - Bo-Kyung Kim
- Department of Dermatology; Yonsei University Wonju College of Medicine; Wonju Korea
| | - Minyoung Jung
- Department of Dermatology; Yonsei University Wonju College of Medicine; Wonju Korea
| | - Dong Hye Kim
- Department of Dermatology; Yonsei University Wonju College of Medicine; Wonju Korea
| | - Catharina S. Moniaga
- Department of Dermatology; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - Kenji Kabashima
- Department of Dermatology; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - Eung Ho Choi
- Department of Dermatology; Yonsei University Wonju College of Medicine; Wonju Korea
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12
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Roesner LM, Werfel T, Heratizadeh A. The adaptive immune system in atopic dermatitis and implications on therapy. Expert Rev Clin Immunol 2016; 12:787-96. [PMID: 26967382 DOI: 10.1586/1744666x.2016.1165093] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In atopic dermatitis (AD), the skin inflammation is believed to occur due to a misdirected immune reaction against harmless antigens on the one hand, and to a disturbed skin barrier on the other. In recent years, vast efforts have been made to investigate the relevance and details of the immune response to allergens. Clinically, it was demonstrated for the first time that aeroallergen exposure leads to worsening of AD symptoms. An overexpression of Th2 cytokines has been observed in acute and subacute lesions of AD. The clinical impact of the key Th2 cytokines IL-4 and IL-13 on atopic dermatitis has recently been shown in clinical studies with dupilumab, a monoclonal antibody which blocks the IL-4/IL-13 receptor. In vitro data indicate, however, that the T cell response is not solely Th2-polarized but may lead to heterogeneous cytokine production involving IFN-γ and IL-17 in an allergen-dependent manner. Classical thymus-derived Foxp3 T cells have interestingly been detected in elevated numbers in the circulation of AD patients. Therapeutic approaches with allergen specific immunotherapy aim to induce regulatory T cells of the Tr1 type. The strikingly altered microbiome of AD skin with diminished diversity of bacteria on lesional skin but increases of S. aureus colonization and the sensitization against microbial allergens and homologue self-proteins deserve special attention. For the treatment of itch symptoms, which still represent a challenge in daily practice, promising data have been published on the relevance of the H(histamine)4-receptor and on mediators such as IL-31, TSLP.
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Affiliation(s)
- Lennart M Roesner
- a Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy , Hannover Medical School , Hannover , Germany
| | - Thomas Werfel
- a Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy , Hannover Medical School , Hannover , Germany
| | - Annice Heratizadeh
- a Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy , Hannover Medical School , Hannover , Germany
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Bao L, Alexander JB, Zhang H, Shen K, Chan LS. Interleukin-4 Downregulation of Involucrin Expression in Human Epidermal Keratinocytes Involves Stat6 Sequestration of the Coactivator CREB-Binding Protein. J Interferon Cytokine Res 2016; 36:374-81. [PMID: 26918372 DOI: 10.1089/jir.2015.0056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Skin barrier defects play an important role in atopic dermatitis (AD). Involucrin, an important barrier protein suppressed in human AD, is downregulated by interleukin-4 (IL-4). However, the molecular mechanism for IL-4 downregulation of involucrin has not been delineated, and especially how Stat6, a transcriptional activator, represses involucrin expression is unknown. Since Stats usually recruit p300/CBP in the general transcription machinery of their target genes and involucrin expression also involves p300/CBP, we hypothesize that Stat6 activated by IL-4 may sequestrate p300/CBP from the involucrin transcription complex, thus suppressing involucrin expression in keratinocytes. Using IL-4 transgenic mice, an AD mouse model, we find that involucrin expression is similarly downregulated as in human AD. In HaCat cells, the Jak inhibitor and dominant negative studies indicate that the Jaks-Stat6 pathway is involved in IL-4 downregulation of involucrin. Next, we transfected HaCat cells with an involucrin promoter-luciferase construct and then treated them with IL-4. IL-4 greatly suppresses the promoter activity, which is totally abolished by cotransfecting the CREB-binding protein (CBP) expression vector, indicating that IL-4 cannot downregulate involucrin in the presence of excess CBP. Finally, chromatin immunoprecipitation assay demonstrates that IL-4 decreases CBP binding to the involucrin transcription complex. For the first time, we defined a molecular mechanism for IL-4 downregulation of involucrin in keratinocytes, which may play an important role in the pathogenesis of AD.
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Affiliation(s)
- Lei Bao
- 1 Department of Dermatology, University of Illinois at Chicago , Chicago, Illinois
| | - Jaime B Alexander
- 1 Department of Dermatology, University of Illinois at Chicago , Chicago, Illinois
| | - Huayi Zhang
- 1 Department of Dermatology, University of Illinois at Chicago , Chicago, Illinois
| | - Kui Shen
- 1 Department of Dermatology, University of Illinois at Chicago , Chicago, Illinois
| | - Lawrence S Chan
- 1 Department of Dermatology, University of Illinois at Chicago , Chicago, Illinois.,2 Department of Microbiology & Immunology, University of Illinois at Chicago , Chicago, Illinois.,3 Medical Service, Jesse Brown VA Med Center , Chicago, Illinois
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Thomas W, Werner A, Frank A, Matthias A, Tilo B, Thomas D, Regina FH, Uwe G, Annice H, Julia K, Alexander K, Alexander N, Katja N, Hagen O, Bernhard P, Martin R, Martin S, Peter SG, Jochen S, Thomas S, Doris S, Margitta W. Leitlinie Neurodermitis [atopisches Ekzem; atopische Dermatitis]. J Dtsch Dermatol Ges 2015; 14:e1-75. [DOI: 10.1111/ddg.12884] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | - Aberer Werner
- Österreichische Gesellschaft für Dermatologie und Venerologie
| | - Ahrens Frank
- Gesellschaft für Pädiatrische Allergologie und Umweltmedizin e.V
| | - Augustin Matthias
- Arbeitsgemeinschaft Gesundheitsökonomie und Evidenzbasierte Medizin der Deutschen Dermatologischen Gesellschaft
| | | | - Diepgen Thomas
- Arbeitsgemeinschaft Berufs- und Umweltdermatologie der Deutschen Dermatologischen Gesellschaft
| | - Fölster-Holst Regina
- Arbeitsgemeinschaft Pädiatrische Dermatologie der Deutschen Dermatologischen Gesellschaft
| | | | | | | | - Kapp Alexander
- Deutsche Gesellschaft für Allergologie und Klinische Immunologie
| | - Nast Alexander
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften e.V. (Moderation)
| | - Nemat Katja
- Berufsverband der Kinder- und Jugendärzte e.V
| | - Ott Hagen
- Deutsche Gesellschaft für Kinder- und Jugendmedizin e.V
| | - Przybilla Bernhard
- Arbeitsgemeinschaft Allergologie der Deutschen Dermatologischen Gesellschaft
| | | | | | | | | | | | - Staab Doris
- Arbeitsgemeinschaft Neurodermitisschulung e.V
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15
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16
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Werfel T, Heratizadeh A, Niebuhr M, Kapp A, Roesner LM, Karch A, Erpenbeck VJ, Lösche C, Jung T, Krug N, Badorrek P, Hohlfeld JM. Exacerbation of atopic dermatitis on grass pollen exposure in an environmental challenge chamber. J Allergy Clin Immunol 2015; 136:96-103.e9. [PMID: 26044854 DOI: 10.1016/j.jaci.2015.04.015] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Revised: 03/03/2015] [Accepted: 04/03/2015] [Indexed: 12/20/2022]
Abstract
BACKGROUND It has frequently been speculated that pruritus and skin lesions develop after topical exposure to aeroallergens in sensitized patients with atopic dermatitis (AD). OBJECTIVE We sought to study cutaneous reactions to grass pollen in adult patients with AD with accompanying clear IgE sensitization to grass allergen in an environmental challenge chamber using a monocenter, double-blind, placebo-controlled study design. METHODS Subjects were challenged on 2 consecutive days with either 4000 pollen grains/m(3) of Dactylis glomerata pollen or clean air. The severity of AD was assessed at each study visit up to 5 days after challenge by (objective) scoring of AD (SCORAD). Additionally, air-exposed and non-air-exposed skin areas were each scored using local SCORAD scoring and investigator global assessments. Levels of a series of serum cytokines and chemokines were determined by using a Luminex-based immunoassay. The primary end point of the study was the change in objective SCORAD scores between prechallenge and postchallenge values. RESULTS Exposure to grass pollen induced a significant worsening of AD. A pronounced eczema flare-up of air-exposed rather than covered skin areas occurred. In grass pollen-exposed subjects a significantly higher increase in CCL17, CCL22, and IL-4 serum levels was observed. CONCLUSIONS This study demonstrates that controlled exposure to airborne allergens of patients with a so-called extrinsic IgE-mediated form of AD induced a worsening of cutaneous symptoms.
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Affiliation(s)
- Thomas Werfel
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Annice Heratizadeh
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany.
| | - Margarete Niebuhr
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Alexander Kapp
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Lennart Matthias Roesner
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Annika Karch
- Institute for Biostatistics, Hannover Medical School, Hannover, Germany
| | | | | | | | - Norbert Krug
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Research (BREATH), Member of the German Center for Lung Research, Hannover, Germany
| | - Philipp Badorrek
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
| | - Jens M Hohlfeld
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Research (BREATH), Member of the German Center for Lung Research, Hannover, Germany
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17
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Abstract
Harlequin ichthyosis is characterized by thickening of the layer of the skin which contains keratin. Eczema is a chronic relapsing skin disorder which is also associated with disrupted epidermal barrier. We report the case of a 6-hour-old male patient who was brought to the neonatal intensive care unit of our hospital with crusting skin lesions all over the body, presence of a severe ectropion and deranged electrolytes. A diagnosis of harlequin ichthyosis was made, and the neonate was managed accordingly. However, the infant eventually expired on the seventh day of life. The infant's father was a patient of eczema with a chronic relapsing course and was on oral steroid therapy. As per our knowledge, this is the first reported case of an infant with harlequin ichthyosis born to a father suffering from eczema. The similarities in the pathogenesis of the two diseases and the genetic mutation of filaggrin might suggest an association between the two conditions. Harlequin ichthyosis can hence be looked out for in infants born of parents with eczema.
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Affiliation(s)
- Saba Fatima
- Department of Pediatrics, Civil Hospital Karachi, Karachi, Pakistan, 74200
| | - Ali Rafiq
- Department of Dermatology, Civil Hospital Karachi, Karachi, Pakistan, 74200
| | - Zain Majid
- Department of Pediatrics, Civil Hospital Karachi, Karachi, Pakistan, 74200
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Lee HJ, Lee SH. Epidermal permeability barrier defects and barrier repair therapy in atopic dermatitis. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2014; 6:276-87. [PMID: 24991450 PMCID: PMC4077953 DOI: 10.4168/aair.2014.6.4.276] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Accepted: 01/06/2014] [Indexed: 12/18/2022]
Abstract
Atopic dermatitis (AD) is a multifactorial inflammatory skin disease perpetuated by gene-environmental interactions and which is characterized by genetic barrier defects and allergic inflammation. Recent studies demonstrate an important role for the epidermal permeability barrier in AD that is closely related to chronic immune activation in the skin during systemic allergic reactions. Moreover, acquired stressors (e.g., Staphylococcus aureus infection) to the skin barrier may also initiate inflammation in AD. Many studies involving patients with AD revealed that defective skin barriers combined with abnormal immune responses might contribute to the pathophysiology of AD, supporting the outside-inside hypothesis. In this review, we discuss the recent advances in human and animal models, focusing on the defects of the epidermal permeability barrier, its immunologic role and barrier repair therapy in AD.
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Affiliation(s)
- Hae-Jin Lee
- Medical Corps of Sangmudae Army Service Support Group, Republic of Korea Army Training and Doctrine Command, Jangsung, Korea
| | - Seung-Hun Lee
- Department of Dermatology, Gangnam Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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7,3',4'-Trihydroxyisoflavone Ameliorates the Development of Dermatophagoides farinae-Induced Atopic Dermatitis in NC/Nga Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:636597. [PMID: 24324516 PMCID: PMC3845246 DOI: 10.1155/2013/636597] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 10/07/2013] [Indexed: 11/23/2022]
Abstract
Atopic dermatitis is an inflammatory and chronically relapsing skin disorder that commonly occurs in children; the number of atopic dermatitis patients is increasing. The cause and mechanism of atopic dermatitis have not been defined clearly, although many studies are ongoing. Epidemiological studies suggest that soybean and its isoflavones have immunoregulatory activities. Here, we report that 7,3′,4′-trihydroxyisoflavone (7,3′,4′-THIF), a major metabolite of daidzin, effectively inhibited lipopolysaccharide (LPS)-induced nitric oxide (NO), tumor necrosis factor (TNF)-α, and interleukin (IL)-6 production in RAW 264.7 cells, and also reduced β-hexosaminidase secretion in RBL-2H3 cells. Moreover, 7,3′,4′-THIF significantly reduced scratching time, transepidermal water loss, and mast cell infiltration. It also decreased protease-activated receptor (PAR)-2 and IL-4 expression and increased filaggrin expression in skin lesions of NC/Nga mice. These results suggest that 7,3′,4′-THIF improves Dermatophagoides farina body extract-induced atopic dermatitis in NC/Nga mice.
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