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Adhikary PP, Idowu T, Tan Z, Hoang C, Shanta S, Dumbani M, Mappalakayil L, Awasthi B, Bermudez M, Weiner J, Beule D, Wolber G, Page BD, Hedtrich S. Disrupting TSLP-TSLP receptor interactions via putative small molecule inhibitors yields a novel and efficient treatment option for atopic diseases. EMBO Mol Med 2024; 16:1630-1656. [PMID: 38877290 DOI: 10.1038/s44321-024-00085-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 05/21/2024] [Accepted: 05/23/2024] [Indexed: 06/16/2024] Open
Abstract
Thymic stromal lymphopoietin (TSLP) is a key player in atopic diseases, which has sparked great interest in therapeutically targeting TSLP. Yet, no small-molecule TSLP inhibitors exist due to the challenges of disrupting the protein-protein interaction between TSLP and its receptor. Here, we report the development of small-molecule TSLP receptor inhibitors using virtual screening and docking of >1,000,000 compounds followed by iterative chemical synthesis. BP79 emerged as our lead compound that effectively abrogates TSLP-triggered cytokines at low micromolar concentrations. For in-depth analysis, we developed a human atopic disease drug discovery platform using multi-organ chips. Here, topical application of BP79 onto atopic skin models that were co-cultivated with lung models and Th2 cells effectively suppressed immune cell infiltration and IL-13, IL-4, TSLP, and periostin secretion, while upregulating skin barrier proteins. RNA-Seq analysis corroborate these findings and indicate protective downstream effects on the lungs. To the best of our knowledge, this represents the first report of a potent putative small molecule TSLPR inhibitor which has the potential to expand the therapeutic and preventive options in atopic diseases.
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Affiliation(s)
- Partho Protim Adhikary
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Temilolu Idowu
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Zheng Tan
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Christopher Hoang
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Selina Shanta
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Malti Dumbani
- Institute of Pharmacy, Freie Universität of Berlin, Berlin, Germany
| | - Leah Mappalakayil
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Bhuwan Awasthi
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada
| | - Marcel Bermudez
- Institute of Pharmacy, Freie Universität of Berlin, Berlin, Germany
- Institute of Pharmaceutical and Medicinal Chemistry, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - January Weiner
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Dieter Beule
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Gerhard Wolber
- Institute of Pharmacy, Freie Universität of Berlin, Berlin, Germany
| | - Brent Dg Page
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada.
| | - Sarah Hedtrich
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, BC, Canada.
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Germany Charité - Universitätsmedizin Berlin, Berlin, Germany.
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany.
- Max-Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125, Berlin, Germany.
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Jin F, Fan P, Wu Y, Yang Q, Li J, Liu H. Efficacy and Mechanisms of Natural Products as Therapeutic Interventions for Chronic Respiratory Diseases. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2024; 52:57-88. [PMID: 38353634 DOI: 10.1142/s0192415x24500034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Chronic respiratory diseases are long-term conditions affecting the airways and other lung components that are characterized by a high prevalence, disability rate, and mortality rate. Further optimization of their treatment is required. Natural products, primarily extracted from organisms, possess specific molecular and structural formulas as well as distinct chemical and physical properties. These characteristics grant them the advantages of safety, gentleness, accessibility, and minimal side effects. The numerous advances in the use of natural products for treating chronic respiratory diseases have provided a steady source of motivation for new drug research and development. In this paper, we introduced the pathogenesis of chronic respiratory diseases and natural products. Furthermore, we classified natural products according to their mechanism for treating chronic respiratory diseases and describe the ways in which these products can alleviate the pathological symptoms. Simultaneously, we elaborate on the signal transduction pathways and biological impacts of natural products' targeting. Additionally, we present future prospects for natural products, considering their combination treatment approaches and administration methods. The significance of this review extends to both the research on preventing and treating chronic respiratory diseases, as well as the advancement of novel drug development in this field.
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Affiliation(s)
- Fanli Jin
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases, Co-Constructed by Henan Province and Education Ministry of China Zhengzhou, P. R. China
| | - Pengbei Fan
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases, Co-Constructed by Henan Province and Education Ministry of China Zhengzhou, P. R. China
| | - Yuanyuan Wu
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases, Co-Constructed by Henan Province and Education Ministry of China Zhengzhou, P. R. China
| | - Qingzhen Yang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and Technology, Xi'an Jiaotong University Xi'an, P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC) Xi'an Jiaotong University, Xi'an, P. R. China
| | - Jiansheng Li
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases, Co-Constructed by Henan Province and Education Ministry of China Zhengzhou, P. R. China
| | - Han Liu
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, P. R. China
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases, Co-Constructed by Henan Province and Education Ministry of China Zhengzhou, P. R. China
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Shim KS, Park M, Yang WK, Lee H, Kim SH, Choo BK, Chae S, Kim HK, Kim T, Kim KM. Veronica persica Ethanol Extract Ameliorates Dinitrochlorobenzene-Induced Atopic Dermatitis-like Skin Inflammation in Mice, Likely by Inducing Nrf2/HO-1 Signaling. Antioxidants (Basel) 2023; 12:1267. [PMID: 37371997 DOI: 10.3390/antiox12061267] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Atopic dermatitis (AD) is chronic allergic contact dermatitis with immune dysregulation. Veronica persica has pharmacological activity that prevents asthmatic inflammation by ameliorating inflammatory cell activation. However, the potential effects of the ethanol extract of V. persica (EEVP) on AD remain elusive. This study evaluated the activity and underlying molecular pathway of EEVP in two AD models: dinitrochlorobenzene (DNCB)-induced mice and interferon (IFN)-γ/tumor necrosis factor (TNF)-α-stimulated human HaCaT keratinocytes. EEVP attenuated the DNCB-induced increase in serum immunoglobulin E and histamine levels, mast cell counts in toluidine-blue-stained dorsal skin, inflammatory cytokine (IFN-γ, interleukin [IL]-4, IL-5, and IL-13) levels in cultured splenocytes, and the mRNA expression of IL6, IL13, IL31 receptor, CCR-3, and TNFα in dorsal tissue. Additionally, EEVP inhibited the IFN-γ/TNF-α-induced mRNA expression of IL6, IL13, and CXCL10 in HaCaT cells. Furthermore, EEVP restored the IFN-γ/TNF-α-induced downregulation of heme oxygenase (HO)-1 in HaCaT cells by inducing nuclear factor erythroid 2-related factor 2 (Nrf2) expression. A molecular docking analysis demonstrated that EEVP components have a strong affinity to the Kelch-like ECH-associated protein 1 Kelch domain. In summary, EEVP inhibits inflammatory AD by attenuating immune cell activation and inducing the Nrf2/HO-1 signaling pathway in skin keratinocytes.
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Affiliation(s)
- Ki-Shuk Shim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Musun Park
- KM Data Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Won-Kyung Yang
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon 34520, Republic of Korea
| | - Hanbyeol Lee
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon 34520, Republic of Korea
| | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon 34520, Republic of Korea
| | - Byung-Kil Choo
- Department of Crop Science & Biotechnology, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Sungwook Chae
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Republic of Korea
- Korean Convergence Medicine Major KIOM, University of Science & Technology (UST), Daejeon 34054, Republic of Korea
| | - Ho-Kyoung Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Taesoo Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Republic of Korea
| | - Ki-Mo Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Republic of Korea
- Korean Convergence Medicine Major KIOM, University of Science & Technology (UST), Daejeon 34054, Republic of Korea
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Yamashita H, Matsuhara H, Tanaka H, Inagaki N, Tsutsui M. Oral allergy induction through skin exposure to previously tolerated food antigens in murine models. J Pharmacol Sci 2023; 152:76-85. [PMID: 37169482 DOI: 10.1016/j.jphs.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/16/2023] [Accepted: 03/27/2023] [Indexed: 05/13/2023] Open
Abstract
Food allergies (FAs) are caused by a failure of the immune system to regulate oral tolerance (OT). The use of soap containing hydrolyzed wheat overrides acquired OT to wheat through skin exposure. However, in mouse models, the experimental OT is robust, suggesting that acquired OT to allergens prevents the development of FAs. We aimed to analyze the mechanisms and developed a mouse model of FA that overrides acquired OT via skin exposure. Three murine FA models (intraperitoneal [IP], epicutaneous [EC], and intradermal [ID]) were compared to evaluate if allergies to ovalbumin (OVA) that had been previously tolerated orally could be induced. In the ID model, OT was overridden, and allergic reactions of severe anaphylaxis were developed. To analyze this effect in the ID model, we measured the migration of dendritic cells (DCs) into lymph nodes. The induction of OT promoted the migration of CD103+ dermal DCs; moreover, repeated percutaneous doses of OVA for sensitization gradually increased the migration of CD11b+ dermal DCs. The difference in the proportion of regulatory T cells between ID-sensitized groups at the first ID injection disappeared at the tenth injection. Although OT was robust in the IP model, ID sensitization was found to override OT.
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Affiliation(s)
- Hirotaka Yamashita
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan.
| | - Hiroki Matsuhara
- Immuno-Pharmacology, Field of Biofunctional Control, Medical Information Science Division, United Graduate School of Drug Discovery and Medical Information Science, Gifu University, 1-1 Yanaido, Gifu 501-1194, Japan
| | - Hiroyuki Tanaka
- Immuno-Pharmacology, Field of Biofunctional Control, Medical Information Science Division, United Graduate School of Drug Discovery and Medical Information Science, Gifu University, 1-1 Yanaido, Gifu 501-1194, Japan; Laboratory of Immunobiology, Department of Biofunctional Analysis, Gifu Pharmaceutical University, 1-25-4 Daigakunishi, Gifu 501-1196, Japan
| | - Naoki Inagaki
- Department of Pharmacy, Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani City, Gifu 509-0293, Japan
| | - Masato Tsutsui
- Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan
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NOD2 Agonism Counter-Regulates Human Type 2 T Cell Functions in Peripheral Blood Mononuclear Cell Cultures: Implications for Atopic Dermatitis. Biomolecules 2023; 13:biom13020369. [PMID: 36830738 PMCID: PMC9953199 DOI: 10.3390/biom13020369] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 02/18/2023] Open
Abstract
Atopic dermatitis (AD) is known as a skin disease; however, T cell immunopathology found in blood is associated with its severity. Skin Staphylococcus aureus (S. aureus) and associated host-pathogen dynamics are important to chronic T helper 2 (Th2)-dominated inflammation in AD, yet they remain poorly understood. This study sought to investigate the effects of S. aureus-derived molecules and skin alarmins on human peripheral blood mononuclear cells, specifically testing Th2-type cells, cytokines, and chemokines known to be associated with AD. We first show that six significantly elevated Th2-related chemokine biomarkers distinguish blood from adult AD patients compared to healthy controls ex vivo; in addition, TARC/CCL17, LDH, and PDGF-AA/AB correlated significantly with disease severity. We then demonstrate that these robust AD-associated biomarkers, as well as associated type 2 T cell functions, are readily reproduced from healthy blood mononuclear cells exposed to the alarmin TSLP and the S. aureus superantigen SEB in a human in vitro model, including IL-13, IL-5, and TARC secretion as well as OX-40-expressing activated memory T cells. We further show that the agonism of nucleotide-binding oligomerization domain-containing protein (NOD)2 inhibits this IL-13 secretion and memory Th2 and Tc2 cell functional activation while inducing significantly increased pSTAT3 and IL-6, both critical for Th17 cell responses. These findings identify NOD2 as a potential regulator of type 2 immune responses in humans and highlight its role as an endogenous inhibitor of pathogenic IL-13 that may open avenues for its therapeutic targeting in AD.
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Abstract
Thymic stromal lymphopoietin (TSLP) is a pleiotropic cytokine that acts on multiple cell lineages, including dendritic cells, T cells, B cells, neutrophils, mast cells, eosinophils and innate lymphoid cells, affecting their maturation, survival and recruitment. It is best known for its role in promoting type 2 immune responses such as in allergic diseases and, in 2021, a monoclonal antibody targeting TSLP was approved for the treatment of severe asthma. However, it is now clear that TSLP has many other important roles in a variety of settings. Indeed, several genetic variants for TSLP are linked to disease severity, and chromosomal alterations in TSLP are common in certain cancers, indicating important roles of TSLP in disease. In this Review, we discuss recent advances in TSLP biology, highlighting how it regulates the tissue environment not only in allergic disease but also in infectious diseases, inflammatory diseases and cancer. Encouragingly, therapies targeting the TSLP pathway are being actively pursued for several diseases.
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Affiliation(s)
- Risa Ebina-Shibuya
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Warren J Leonard
- Laboratory of Molecular Immunology, Immunology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
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Wang S, Liu B, Huang J, He H, Zhou L, He Y, Yan J, Tao A. Succinate and mitochondrial DNA trigger atopic march from atopic dermatitis to intestinal inflammation. J Allergy Clin Immunol 2022; 151:1050-1066.e7. [PMID: 36587852 DOI: 10.1016/j.jaci.2022.11.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 10/29/2022] [Accepted: 11/04/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Atopic march has long been recognized as the progression from atopic dermatitis (AD) to food allergy and asthma during infancy and childhood. However, effective blocking is hampered by the lack of specific biomarkers. OBJECTIVES We aimed to investigate the pathologic progression of atopic march trajectories from skin to gut. METHODS We built an atopic march mouse model by mechanical skin injury and percutaneous sensitization to peanut allergen. Anaphylaxis from the skin to the small intestine was then investigated by ELISA, RNA sequencing, quantitative real-time PCR, histopathologic analysis, and flow cytometry. The findings from the mice results were also verified by the serum samples of allergic pediatric patients. RESULTS After modeling, inflammation in the skin and small intestine manifested as a mixed type of TH2 and TH17. Further analysis identified elevated succinate in the circulation and expanded tuft cells with upregulated IL-25 in the small intestine, resulting in increased intestinal type 2 innate lymphoid cells and an enhanced type 2 inflammatory response. In addition, free mitochondrial DNA (mtDNA) released after tissue damage was also involved in inflammation march from injured skin to small intestine through the STING pathway. Analysis of clinical samples verified that serum concentrations of succinate and mtDNA were higher in AD allergic children than non-AD allergic children. CONCLUSIONS Succinate and mtDNA play key roles in skin-to-gut cross talk during the atopic march from AD to food allergy, and can be considered as biomarkers for risk assessment or targets for atopic march prevention strategies.
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Affiliation(s)
- Shan Wang
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Bowen Liu
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Jiahao Huang
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Huiru He
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Linghui Zhou
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Ying He
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Jie Yan
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Ailin Tao
- Second Affiliated Hospital, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China.
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Stanbery AG, Shuchi Smita, Jakob von Moltke, Tait Wojno ED, Ziegler SF. TSLP, IL-33, and IL-25: Not just for allergy and helminth infection. J Allergy Clin Immunol 2022; 150:1302-1313. [PMID: 35863509 PMCID: PMC9742339 DOI: 10.1016/j.jaci.2022.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/16/2022] [Accepted: 07/08/2022] [Indexed: 12/14/2022]
Abstract
The release of cytokines from epithelial and stromal cells is critical for the initiation and maintenance of tissue immunity. Three such cytokines, thymic stromal lymphopoietin, IL-33, and IL-25, are important regulators of type 2 immune responses triggered by parasitic worms and allergens. In particular, these cytokines activate group 2 innate lymphoid cells, TH2 cells, and myeloid cells, which drive hallmarks of type 2 immunity. However, emerging data indicate that these tissue-associated cytokines are not only involved in canonical type 2 responses but are also important in the context of viral infections, cancer, and even homeostasis. Here, we provide a brief review of the roles of thymic stromal lymphopoietin, IL-33, and IL-25 in diverse immune contexts, while highlighting their relative contributions in tissue-specific responses. We also emphasize a biologically motivated framework for thinking about the integration of multiple immune signals, including the 3 featured in this review.
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Affiliation(s)
| | - Shuchi Smita
- Department of Immunology, University of Washington, Seattle, Wash
| | - Jakob von Moltke
- Department of Immunology, University of Washington, Seattle, Wash
| | | | - Steven F Ziegler
- Department of Immunology, University of Washington, Seattle, Wash; Benaroya Research Institute, Seattle, Wash.
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Segaud J, Yao W, Marschall P, Daubeuf F, Lehalle C, German B, Meyer P, Hener P, Hugel C, Flatter E, Guivarch M, Clauss L, Martin SF, Oulad-Abdelghani M, Li M. Context-dependent function of TSLP and IL-1β in skin allergic sensitization and atopic march. Nat Commun 2022; 13:4703. [PMID: 36050303 PMCID: PMC9437001 DOI: 10.1038/s41467-022-32196-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 07/20/2022] [Indexed: 11/09/2022] Open
Abstract
Atopic diseases, including atopic dermatitis (AD) and asthma, affect a large proportion of the population, with increasing prevalence worldwide. AD often precedes the development of asthma, known as the atopic march. Allergen sensitization developed through the barrier-defective skin of AD has been recognized to be a critical step leading to asthma, in which thymic stromal lymphopoietin (TSLP) was previously shown to be critical. In this study, using a laser-assistant microporation system to disrupt targeted skin layers for generating micropores at a precise anatomic depth of mouse skin, we model allergen exposure superficially or deeply in the skin, leading to epicutaneous sensitization or dermacutaneous sensitization that is associated with a different cytokine microenvironment. Our work shows a differential requirement for TSLP in these two contexts, and identifies an important function for IL-1β, which is independent of TSLP, in promoting allergen sensitization and subsequent allergic asthma. Allergic sensitisation in the skin can lead to allergic dermatitis and further to airway asthma in a process of atopic march. Here the authors examine the difference between superficial or deep skin sensitisation, characterise the immune cells generated and show differential TSLP and IL-1β involvement.
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Affiliation(s)
- Justine Segaud
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Wenjin Yao
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Pierre Marschall
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - François Daubeuf
- CNRS-Strasbourg University, UAR3286, Plate-Forme de Chimie Biologique Intégrative de Strasbourg/Strasbourg Drug Discovery and Development Institute, ESBS, Illkirch, France.,CNRS-Strasbourg University, UMR7200, Laboratoire d'Innovation Thérapeutique/ Strasbourg Drug Discovery and Development Institute, Faculté de Pharmacie, Illkirch, France
| | - Christine Lehalle
- CNRS-Strasbourg University, UAR3286, Plate-Forme de Chimie Biologique Intégrative de Strasbourg/Strasbourg Drug Discovery and Development Institute, ESBS, Illkirch, France.,CNRS-Strasbourg University, UMR7200, Laboratoire d'Innovation Thérapeutique/ Strasbourg Drug Discovery and Development Institute, Faculté de Pharmacie, Illkirch, France
| | - Beatriz German
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Pierre Meyer
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Pierre Hener
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Cécile Hugel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Eric Flatter
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Marine Guivarch
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Laetitia Clauss
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Stefan F Martin
- Allergy Research Group, Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Mustapha Oulad-Abdelghani
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Mei Li
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France.
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10
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Hasegawa T, Oka T, Demehri S. Alarmin Cytokines as Central Regulators of Cutaneous Immunity. Front Immunol 2022; 13:876515. [PMID: 35432341 PMCID: PMC9005840 DOI: 10.3389/fimmu.2022.876515] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/08/2022] [Indexed: 12/13/2022] Open
Abstract
Skin acts as the primary interface between the body and the environment. The skin immune system is composed of a complex network of immune cells and factors that provide the first line of defense against microbial pathogens and environmental insults. Alarmin cytokines mediate an intricate intercellular communication between keratinocytes and immune cells to regulate cutaneous immune responses. Proper functions of the type 2 alarmin cytokines, thymic stromal lymphopoietin (TSLP), interleukin (IL)-25, and IL-33, are paramount to the maintenance of skin homeostasis, and their dysregulation is commonly associated with allergic inflammation. In this review, we discuss recent findings on the complex regulatory network of type 2 alarmin cytokines that control skin immunity and highlight the mechanisms by which these cytokines regulate skin immune responses in host defense, chronic inflammation, and cancer.
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Affiliation(s)
| | - Tomonori Oka
- Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Shadmehr Demehri
- Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
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11
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Han NR, Moon PD, Nam SY, Ko SG, Park HJ, Kim HM, Jeong HJ. TSLP up-regulates inflammatory responses through induction of autophagy in T cells. FASEB J 2022; 36:e22148. [PMID: 34997949 DOI: 10.1096/fj.202101447r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 12/14/2021] [Accepted: 12/21/2021] [Indexed: 12/19/2022]
Abstract
Thymic stromal lymphopoietin (TSLP), a type I cytokine belonging to the IL-2 cytokine family, promotes Th2-mediated inflammatory responses. The aim of this study is to investigate whether TSLP increases inflammatory responses via induction of autophagy using a murine T cell lymphoma cell line, EL4 cells, and lipopolysaccharide (LPS)-injected mice. TSLP increased expression levels of autophagy-related factors, such as Beclin-1, LC3-II, p62, Atg5, and lysosome associated membrane protein 1/2, whereas these factors increased by TSLP disappeared by neutralization of TSLP in EL4 cells. TSLP activated JAK1/JAK2/STAT5/JNK/PI3K, while the blockade of JAK1/JAK2/STAT5/JNK/PI3K signaling pathways reduced the expression levels of Beclin-1, LC3-II, and p62 in TSLP-stimulated EL4 cells. In addition, TSLP simultaneously increased levels of inflammatory cytokines via induction of autophagy by activation of JAK1/JAK2/STAT5/JNK/PI3K signaling pathways. In an LPS-induced acute liver injury (ALI) mouse model, exogenous TSLP increased expression levels of Beclin-1 and LC3-II, whereas functional deficiency of TSLP by TSLP siRNA resulted in lower expression of Beclin-1, LC3-II, and inflammatory cytokines, impairing their ability to form autophagosomes in ALI mice. Thus, our findings show a new role of TSLP between autophagy and inflammatory responses. In conclusion, regulating TSLP-induced autophagy may be a potential therapeutic strategy for inflammatory responses.
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Affiliation(s)
- Na-Ra Han
- College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea.,Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Phil-Dong Moon
- Center for Converging Humanities, Kyung Hee University, Seoul, Republic of Korea
| | - Sun-Young Nam
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Seong-Gyu Ko
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea.,Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hi-Joon Park
- Department of Anatomy & Information Sciences, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyung-Min Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyun-Ja Jeong
- Department of Food Science & Technology, Hoseo University, Asan, Republic of Korea
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12
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TSLP disease-associated genetic variants combined with airway TSLP expression influence asthma risk. J Allergy Clin Immunol 2022; 149:79-88. [PMID: 34111451 PMCID: PMC9119142 DOI: 10.1016/j.jaci.2021.05.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/18/2021] [Accepted: 05/26/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Thymic stromal lymphopoietin (TSLP) is an epithelial-derived cytokine important in initiation of allergic inflammation. Single nucleotide polymorphisms (SNPs) in TSLP are associated with asthma, yet studies have shown inconsistent associations between circulating TSLP and asthma. Studies that integrate the combined effects of TSLP genotype, TSLP mRNA, circulating TSLP levels, and asthma outcome are lacking. OBJECTIVES This study sought to recruit a novel cohort based on asthma-relevant TSLP SNPs and determine their impact on TSLP mRNA expression and TSLP circulating protein levels, and their individual and combined effects on asthma. METHODS This study developed an algorithm to prioritize TSLP SNPs and recruited 51 carriers and noncarriers based on TSLP genotypes. TSLP mRNA was quantified in nasal epithelial cells and circulating TSLP levels in plasma. This study determined the associations of defined TSLP risk genotypes and/or TSLP mRNA and protein levels with asthma. RESULTS TSLP mRNA expression, but not circulating TSLP, was significantly increased in people who are asthmatic compared with in people who are nonasthmatic (P = .007; odds ratio, 1.44). Notably, 90% of children with the defined TSLP risk genotypes and high nasal TSLP mRNA expression (top tertile) had asthma compared with 40% of subjects without risk genotypes and with low TSLP expression (bottom tertile) (P = .024). No association between circulating TSLP and asthma was observed. CONCLUSIONS Collectively, these data suggest childhood asthma is modified by the combined effects of TSLP genotype and TSLP expression in the nasal epithelium. The increased asthma risk likely manifests when genetic variation enables expression quantitative trait loci in the TSLP locus to elevate TSLP. It is important to consider both biomarkers when factoring asthma risk.
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13
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Suaini NHA, Siah KTH, Tham EH. Role of the gut-skin axis in IgE-mediated food allergy and atopic diseases. Curr Opin Gastroenterol 2021; 37:557-564. [PMID: 34411036 DOI: 10.1097/mog.0000000000000780] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE OF REVIEW In recent years, landmark clinical trials investigating the role of early oral exposure to food antigens for food allergy (FA) prevention have highlighted the importance of immunoregulatory pathways in the 'gut-skin axis'. This review highlights recent literature on the mechanisms of the immune system and microbiome involved in the gut-skin axis, contributing to the development of atopic dermatitis (AD), FA, allergic rhinitis (AR) and asthma. Therapeutic interventions harnessing the gut-skin axis are also discussed. RECENT FINDINGS Epicutaneous sensitization in the presence of AD is capable of inducing Th2 allergic inflammation in the intestinal tract and lower respiratory airways, predisposing one to the development of AR and asthma. Probiotics have demonstrated positive effects in preventing and treating AD, though there is no evident relationship of its beneficial effects on other allergic diseases. Prophylactic skin emollients use has not shown consistent protection against AD, whereas there is some evidence for the role of dietary changes in alleviating AD and airway inflammation. More randomized controlled trials are needed to clarify the potential of epicutaneous immunotherapy as a therapeutic strategy for patients with FA. SUMMARY The growing understanding of the gut-skin interactions on allergic disease pathogenesis presents novel avenues for therapeutic interventions which target modulation of the gut and/or skin.
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Affiliation(s)
| | - Kewin Tien Ho Siah
- Division of Gastroenterology & Hepatology, University Medicine Cluster, National University Hospital
- Department of Medicine, Yong Loo Lin School of Medicine
| | - Elizabeth Huiwen Tham
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A STAR)
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore (NUS)
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System (NUHS)
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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14
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Liu X, Zhang Y, Ren Y, Li J. Melatonin prevents allergic airway inflammation in epicutaneously sensitized mice. Biosci Rep 2021; 41:BSR20210398. [PMID: 34522948 PMCID: PMC8458693 DOI: 10.1042/bsr20210398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 11/17/2022] Open
Abstract
PURPOSE The pathological process of atopic dermatitis (AD) progressing into other types of allergic diseases such as asthma and allergic rhinitis during the first several years of life is often referred to as the atopic march. Although the phenomenon of atopic march has been recognized for decades, how asthma stems from AD is still not fully understood, confounding a universal strategy to effectively protect people from the atopic march. METHODS We established experimental atopic march mice by first inducing allergic dermatitis with 0.5% fluorescein isothiocyante (FITC) applied to the skin, followed by an ovalbumin (OVA) airway challenge. In addition, by examining serum immunoglobulin (Ig) concentrations, airway cytokines, the levels of oxidative stress markers, histopathological changes in lung tissue and airway hyperresponsiveness (AHR), we were able to validate the successful establishment of the model. Furthermore, by detecting the attenuating effects of melatonin (MT) and the levels of oxidative stress in the atopic march mice, we explored the potential molecular mechanisms involved in the development of atopic march. RESULTS By successfully establishing an experimental atopic march mouse model, we were able to demonstrate that overproduction of oxidative stress in the lung significantly up-regulated the activation of nuclear factor-κB (NF-κB) signaling pathways causing thymic stromal lymphopoietin (TSLP) release, which further promotes the development of atopic march. CONCLUSIONS To mitigate the development of the atopic march, antioxidants such as MT may be imperative to inhibit NF-κB activation in the lung, especially after the onset of AD.
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Affiliation(s)
- Xudong Liu
- Department of Food Science and Engineering, Moutai Institute, Renhuai 564507, China
| | - Yuchao Zhang
- Department of Food Science and Engineering, Moutai Institute, Renhuai 564507, China
| | - Yaolin Ren
- School of Medicine, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jinquan Li
- School of Medicine, Wuhan University of Science and Technology, Wuhan 430065, China
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15
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Li Y, Jing D, Huang Y, Su J, Li J, Li J, Tao J, Shan S, Wang X, Kang X, Wu B, Chen X, Shen M, Xiao Y. Association of antibiotics use in preschool age with atopic and allergic skin diseases in young adulthood: a population-based retrospective cohort study. BMJ Open 2021; 11:e047768. [PMID: 34548351 PMCID: PMC8458315 DOI: 10.1136/bmjopen-2020-047768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Overuse and misuse of antibiotics is a public health problem in low-income and middle-income countries. Although the association of antibiotics with atopic and allergic diseases has been established, most studies focused on prenatal exposure and the occurrence of disease in infants or young children. OBJECTIVE To investigate the association of preschool use of antibiotics with atopic and allergic skin diseases in young adulthood. DESIGN Population-based retrospective cohort. SETTING AND PARTICIPANTS The first-year college students (n=20 123) from five universities were investigated. The sampled universities are located in Changsha, Wuhan, Xiamen, Urumqi and Hohhot, respectively. METHODS We conducted a dermatological field examination and a questionnaire survey inquiring the participants about the frequency of upper respiratory tract infection (URTI) and the preschool antibiotics use (prior to 7 years old). The two-level probit model was used to estimate the associations, and adjusted risk ratio (aRR) and 95% CI were presented as the effect size. RESULTS A total of 20 123 participants with complete information was included in the final analysis. The frequent antibiotics use intravenously (aRR 1.36, 95% CI 1.14 to 1.62) and orally (aRR 1.18, 95% CI 1.01 to 1.38) prior to 7 years old was significantly associated with atopic dermatitis in young adulthood. Similar trends could be observed in allergic skin diseases among those who use antibiotics orally and intravenously, with RRs of 1.16 (95% CI 1.01 to 1.34) and 1.33 (95% CI 1.13 to 1.57), respectively. CONCLUSIONS Preschool URTI and antibiotics use significantly increases the risk of atopic and allergic skin diseases in young adulthood.
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Affiliation(s)
- Yajia Li
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Danrong Jing
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Yuzhou Huang
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Juan Su
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Jie Li
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Juan Tao
- Department of Dermatology, Affiliated Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shijun Shan
- Department of Dermatology, Xiang'an Hospital, Xiamen University, Xiamen, China
| | - Xiaohui Wang
- Department of Dermatology, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Xiaojing Kang
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Bin Wu
- Department of Dermatology, People's Hospital, Inner Mongolia Medical University, Hohhot, China
| | - Xiang Chen
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Minxue Shen
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, China
| | - Yi Xiao
- Department of Dermatology; Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
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16
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Ziegler SF. Thymic stromal lymphopoietin, skin barrier dysfunction, and the atopic march. Ann Allergy Asthma Immunol 2021; 127:306-311. [PMID: 34153443 PMCID: PMC8419079 DOI: 10.1016/j.anai.2021.06.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/01/2021] [Accepted: 06/11/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Atopic dermatitis often precedes the development of other atopic diseases, and the atopic march describes this temporal relationship in the natural history of these diseases. Although the pathophysiological mechanisms that underlie this relationship are poorly understood, epidemiologic and genetic data have suggested that the skin might be an important route of sensitization to allergens. DATA SOURCES Review of recent studies on the role of skin barrier defects in systemic allergen sensitization. STUDY SELECTIONS Recent publications on the relationship between skin barrier defects and expression of epithelial cell-derived cytokines. RESULTS Animal models have begun to elucidate on how skin barrier defects can lead to systemic allergen sensitization. Emerging data now suggest that epithelial cell-derived cytokines, such as thymic stromal lymphopoietin, drive the progression from atopic dermatitis to asthma and food allergy. Skin barrier defects can lead to induction of epithelial cell-derived cytokines, which in turn leads to the initiation and maintenance of allergic inflammation and the atopic march. CONCLUSION Development of new biologic drug targeting type 2 cytokines provides novel therapeutic interventions for atopic dermatitis.
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Affiliation(s)
- Steven F Ziegler
- Center for Fundamental Immunology, Benaroya Research Institute at Virginia Mason, Seattle, Washington; Department of Immunology, University of Washington School of Medicine, Seattle, Washington.
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17
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Ukleja-Sokołowska N, Żbikowska-Gotz M, Lis K, Adamczak R, Bartuzi Z. Assessment of TSLP, IL 25 and IL 33 in patients with shrimp allergy. Allergy Asthma Clin Immunol 2021; 17:76. [PMID: 34301307 PMCID: PMC8299623 DOI: 10.1186/s13223-021-00576-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 07/11/2021] [Indexed: 12/02/2022] Open
Abstract
Background Shrimp allergy is a growing problem among the European population. TSLP, IL-25 and IL-33 are involved in the pathophysiology of allergic diseases, including asthma and atopic dermatitis, as they activate the Th2-dependent immune response. Methods Thirty-seven patients (18 male and 19 female) with a positive history of symptoms associated with shrimp consumption were selected. All patients had blood samples taken to assess the concentration of allergen-specific IgE (sIgE) to house dust mites (HDM) and shrimp (Singleplex, quantitative method with cut off value > 0,35 kAU/L) as well as the level of allergen components using the ImmunoCap ISAC method (Microarray test, semi-quantitative with cut off value > 0,3 ISU-E). The concentrations of TSLP, IL-25 and IL-33 in the patients’ blood serum was assessed using the ELISA method (Cusabio). Twenty patients with negative allergy history of allergic disease tests were included in the control group. Results Among the 37 shrimp-allergic patients, ImmunoCap ISAC was identified the presence of sIgE to the available shrimp allergen components in only 14 cases (37.8%). TSLP and IL25 levels were significantly higher in the study group. No statistically significant correlation was found between the concentration of analyzed alarmins and the concentration of sIgE level to shrimp or HDM between the study and control groups. No statistically significant correlation was found between poly-sensitization occurring in patients and levels of TSLP, IL-25 and IL-33 . Conclusion In shrimp-allergic patients, the concentrations of TSLP and IL-25 were significantly higher than in the control group (1.33 vs. 0.49 and 157 vs. 39.36, respectively). There was no correlation between the concentrations of TSLP, IL-25 and IL-33 and the concentration of sIgE in the patients or the number of allergen components that the patients were sensitized to. Trial registration: Bioethics Committee 147/2015, 11.03.2015. Supplementary Information The online version contains supplementary material available at 10.1186/s13223-021-00576-9.
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Affiliation(s)
- Natalia Ukleja-Sokołowska
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, ul. Ujejskiego 75, 85-168, Bydgoszcz, Poland.
| | - Magdalena Żbikowska-Gotz
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, ul. Ujejskiego 75, 85-168, Bydgoszcz, Poland
| | - Kinga Lis
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, ul. Ujejskiego 75, 85-168, Bydgoszcz, Poland
| | - Rafał Adamczak
- Department of Obstetrics and Gynecology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Zbigniew Bartuzi
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, ul. Ujejskiego 75, 85-168, Bydgoszcz, Poland
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18
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Mechanisms Underlying the Skin-Gut Cross Talk in the Development of IgE-Mediated Food Allergy. Nutrients 2020; 12:nu12123830. [PMID: 33333859 PMCID: PMC7765270 DOI: 10.3390/nu12123830] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/10/2020] [Accepted: 12/12/2020] [Indexed: 02/07/2023] Open
Abstract
Immune-globulin E (IgE)-mediated food allergy is characterized by a variety of clinical entities within the gastrointestinal tract, skin and lungs, and systemically as anaphylaxis. The default response to food antigens, which is antigen specific immune tolerance, requires exposure to the antigen and is already initiated during pregnancy. After birth, tolerance is mostly acquired in the gut after oral ingestion of dietary proteins, whilst exposure to these same proteins via the skin, especially when it is inflamed and has a disrupted barrier, can lead to allergic sensitization. The crosstalk between the skin and the gut, which is involved in the induction of food allergy, is still incompletely understood. In this review, we will focus on mechanisms underlying allergic sensitization (to food antigens) via the skin, leading to gastrointestinal inflammation, and the development of IgE-mediated food allergy. Better understanding of these processes will eventually help to develop new preventive and therapeutic strategies in children.
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19
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Sharma S, Sethi GS, Naura AS. Curcumin Ameliorates Ovalbumin-Induced Atopic Dermatitis and Blocks the Progression of Atopic March in Mice. Inflammation 2020; 43:358-369. [PMID: 31720988 DOI: 10.1007/s10753-019-01126-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Curcumin, extracted from the roots of Curcuma longa, has been used as an anti-inflammatory agent since the time of Ayurveda. The present work was designed to evaluate the potential of curcumin in amelioration of ovalbumin (OVA) induced AD in mice. Female BALB/c mice were subjected to skin OVA-patch application for a period of 1 week followed by resting period of 2 weeks, and the same protocol was repeated thrice. Curcumin was administered daily at dose of 20 mg/kg (i.p.) for 7 consecutive days during last sensitization phase. The phytochemical ameliorated the OVA-induced skin pathology as evident by normalization of epidermal thickness and suppressed infiltration of inflammatory cells in dermal region. The expression of Th2 promoting cytokines (TSLP/IL-33) and Th2 cytokines (IL-4/IL-5/IL-13/IL-31) was suppressed markedly along with reduced STAT-6 phosphorylation and GATA-3 expression. Curcumin administration also restored the redox balance and phosphorylation status of P65-NF-κB. Additionally, the epicutaneously sensitized mice challenged with aerosolized OVA developed asthmatic features which were effectively thwarted back upon curcumin treatment as reflected by data on total/differential cells in BALF and mRNA expression of Th2 cytokines in lungs. Overall, our findings demonstrate that curcumin treatment blunts the development of AD as well as associated atopic march in experimental mice.
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Affiliation(s)
- Sukriti Sharma
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Gurupreet S Sethi
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Amarjit S Naura
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India.
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20
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Alessandrini F, Musiol S, Schneider E, Blanco-Pérez F, Albrecht M. Mimicking Antigen-Driven Asthma in Rodent Models-How Close Can We Get? Front Immunol 2020; 11:575936. [PMID: 33101301 PMCID: PMC7555606 DOI: 10.3389/fimmu.2020.575936] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 08/31/2020] [Indexed: 12/22/2022] Open
Abstract
Asthma is a heterogeneous disease with increasing prevalence worldwide characterized by chronic airway inflammation, increased mucus secretion and bronchial hyperresponsiveness. The phenotypic heterogeneity among asthmatic patients is accompanied by different endotypes, mainly Type 2 or non-Type 2. To investigate the pathomechanism of this complex disease many animal models have been developed, each trying to mimic specific aspects of the human disease. Rodents have classically been employed in animal models of asthma. The present review provides an overview of currently used Type 2 vs. non-Type 2 rodent asthma models, both acute and chronic. It further assesses the methods used to simulate disease development and exacerbations as well as to quantify allergic airway inflammation, including lung physiologic, cellular and molecular immunologic responses. Furthermore, the employment of genetically modified animals, which provide an in-depth understanding of the role of a variety of molecules, signaling pathways and receptors implicated in the development of this disease as well as humanized models of allergic inflammation, which have been recently developed to overcome differences between the rodent and human immune systems, are discussed. Nevertheless, differences between mice and humans should be carefully considered and limits of extrapolation should be wisely taken into account when translating experimental results into clinical use.
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Affiliation(s)
- Francesca Alessandrini
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Stephanie Musiol
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Evelyn Schneider
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Frank Blanco-Pérez
- Molecular Allergology/Vice President's Research Group, Paul-Ehrlich-Institut, Langen, Germany
| | - Melanie Albrecht
- Molecular Allergology/Vice President's Research Group, Paul-Ehrlich-Institut, Langen, Germany
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21
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Yang L, Fu J, Zhou Y. Research Progress in Atopic March. Front Immunol 2020; 11:1907. [PMID: 32973790 PMCID: PMC7482645 DOI: 10.3389/fimmu.2020.01907] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/15/2020] [Indexed: 12/28/2022] Open
Abstract
The incidence of allergic diseases continues to rise. Cross-sectional and longitudinal studies have indicated that allergic diseases occur in a time-based order: from atopic dermatitis and food allergy in infancy to gradual development into allergic asthma and allergic rhinitis in childhood. This phenomenon is defined as the “atopic march”. Some scholars have suggested that the atopic march does not progress completely in a temporal pattern with genetic and environmental factors. Also, the mechanisms underlying the atopic march are incompletely understood. Nevertheless, the concept of the atopic march provides a new perspective for the mechanistic research, prediction, prevention, and treatment of atopic diseases. Here, we review the epidemiology, related diseases, mechanistic studies, and treatment strategies for the atopic march.
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Affiliation(s)
- Lan Yang
- Institute of Pediatrics, Children's Hospital of Fudan University, The Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jinrong Fu
- Institute of Pediatrics, Children's Hospital of Fudan University, The Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yufeng Zhou
- Institute of Pediatrics, Children's Hospital of Fudan University, The Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
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22
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TSLP as druggable target - a silver-lining for atopic diseases? Pharmacol Ther 2020; 217:107648. [PMID: 32758645 DOI: 10.1016/j.pharmthera.2020.107648] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
Atopic diseases refer to common allergic inflammatory diseases such as atopic dermatitis (AD), allergic rhinitis (AR), and allergic asthma (AA). AD often develops in early childhood and may herald the onset of other allergic disorders such as food allergy (FA), AR, and AA. This progression of the disease is also known as the atopic march, and it goes hand in hand with a significantly impaired quality of life as well as a significant economic burden. Atopic diseases usually are considered as T helper type 2 (Th2) cell-mediated inflammatory diseases. Thymic stromal lymphopoietin (TSLP), an epithelium-derived pro-inflammatory cytokine, activates distinct immune and non-immune cells. It has been shown to be a master regulator of type 2 immune responses and atopic diseases. In experimental settings, the inhibition or knockout of TSLP signaling has shown great therapeutic potential. This, in conjunction with the increasing knowledge about the central role of TSLP in the pathogenesis of atopic diseases, has sparked an interest in TSLP as a druggable target. In this review, we will discuss the autocrine and paracrine effects of TSLP, how it regulates the tissue microenvironment and drives atopic diseases, which provide the rationale for the increasing interest in TSLP as a druggable target.
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Seo SH, Kim S, Kim SE, Chung S, Lee SE. Enhanced Thermal Sensitivity of TRPV3 in Keratinocytes Underlies Heat-Induced Pruritogen Release and Pruritus in Atopic Dermatitis. J Invest Dermatol 2020; 140:2199-2209.e6. [PMID: 32247859 DOI: 10.1016/j.jid.2020.02.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/17/2020] [Accepted: 02/21/2020] [Indexed: 01/30/2023]
Abstract
Itch in atopic dermatitis (AD) is aggravated under warm conditions. Transient receptor potential vanilloid (TRPV) 3, a member of the thermosensitive transient receptor potential channels, is activated by innocuous heat and is abundantly expressed in keratinocytes. The potential role of TRPV3 in itch is illustrated in TRPV3 channelopathies of humans and mice. However, the role of TRPV3 in heat-induced itch in AD and the underlying mechanisms are unclear. Here we showed that keratinocytes isolated from patients with AD exhibit enhanced expression and heat sensitivity with hyperactive channel function of TRPV3. Heat stimulus induced enhanced secretion of thymic stromal lymphopoietin, nerve growth factor, and prostaglandin E2 by keratinocytes from patients with AD through TRPV3 activation. TRPV3 agonists increased thymic stromal lymphopoietin, nerve growth factor, prostaglandin E2, and IL-33 production in human keratinocytes and induced scratching behavior upon intradermal injection in mice. TRPV3 was upregulated in the skin of MC903-induced AD mouse model. Heat stimulation to MC903-treated mice increased scratching behavior and produced higher levels of thymic stromal lymphopoietin, nerve growth factor, prostaglandin E2, and IL-33 from the epidermis, which were attenuated by pharmacologic inhibition of TRPV3. Moreover, neutralization of thymic stromal lymphopoietin reduced heat-evoked scratching in MC903-challenged mice. These results suggest that TRPV3 is a potential therapeutic target for heat-induced itch in AD.
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Affiliation(s)
- Seong Hoon Seo
- Department of Dermatology and Cutaneous Biology Research Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sohyun Kim
- Brain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, Korea
| | - Song-Ee Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seungsoo Chung
- Brain Korea 21 Plus Project for Medical Science, Department of Physiology, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Eun Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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24
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Niche-Specific Factors Dynamically Regulate Sebaceous Gland Stem Cells in the Skin. Dev Cell 2019; 51:326-340.e4. [PMID: 31564613 DOI: 10.1016/j.devcel.2019.08.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 05/22/2019] [Accepted: 08/23/2019] [Indexed: 12/22/2022]
Abstract
Oil-secreting sebaceous glands (SGs) are critical for proper skin function; however, it remains unclear how different factors act together to modulate SG stem cells. Here, we provide functional evidence that each SG lobe is serviced by its own dedicated stem cell population. Upon ablating Notch signaling in different skin subcompartments, we find that this pathway exerts dual counteracting effects on SGs. Suppressing Notch in SG progenitors traps them in a hybrid state where stem and differentiation features become intermingled. In contrast, ablating Notch outside of the SG stem cell compartment indirectly drives SG expansion. Finally, we report that a K14:K5→K14:K79 keratin shift occurs during SG differentiation. Deleting K79 destabilizes K14 in sebocytes, and attenuates SGs and eyelid meibomian glands, leading to corneal ulceration. Altogether, our findings demonstrate that SGs integrate diverse signals from different niches and suggest that mutations incurred within one stem cell compartment can indirectly influence another.
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25
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Kemter AM, Nagler CR. Influences on allergic mechanisms through gut, lung, and skin microbiome exposures. J Clin Invest 2019; 129:1483-1492. [PMID: 30830878 DOI: 10.1172/jci124610] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
In industrialized societies the incidence of allergic diseases like atopic dermatitis, food allergies, and asthma has risen alarmingly over the last few decades. This increase has been attributed, in part, to lifestyle changes that alter the composition and function of the microbes that colonize the skin and mucosal surfaces. Strategies that reverse these changes to establish and maintain a healthy microbiome show promise for the prevention and treatment of allergic disease. In this Review, we will discuss evidence from preclinical and clinical studies that gives insights into how the microbiota of skin, intestinal tract, and airways influence immune responses in the context of allergic sensitization.
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26
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Tham EH, Leung DY. Mechanisms by Which Atopic Dermatitis Predisposes to Food Allergy and the Atopic March. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2019; 11:4-15. [PMID: 30479073 PMCID: PMC6267189 DOI: 10.4168/aair.2019.11.1.4] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 08/13/2018] [Indexed: 12/23/2022]
Abstract
The Atopic march denotes the progression from atopic dermatitis (AD) to the development of other allergic disorders such as immunoglobulin (Ig) E-mediated food allergy, allergic rhinitis and asthma in later childhood. There is increasing evidence from prospective birth cohort studies that early-onset AD is a risk factor for other allergic diseases or is found in strong association with them. Animal studies now provide mechanistic insights into the pathways that may be responsible for triggering the progression from the skin barrier dysfunction seen in AD to epicutaneous sensitization, food allergy and allergic airway disorders. Recent large randomized controlled trials have demonstrated the efficacy of early interventions targeted at AD and food allergy prevention. These show great promise for research into future strategies aimed at prevention of the atopic march.
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Affiliation(s)
- Elizabeth Huiwen Tham
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore.,Department of Pediatrics, National Jewish Health, Denver, CO, USA
| | - Donald Ym Leung
- Department of Pediatrics, National Jewish Health, Denver, CO, USA.,Department of Pediatrics, University of Colorado at Denver Health Sciences Center, Aurora, CO, USA.
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27
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New Cytokines in the Pathogenesis of Atopic Dermatitis-New Therapeutic Targets. Int J Mol Sci 2018; 19:ijms19103086. [PMID: 30304837 PMCID: PMC6213458 DOI: 10.3390/ijms19103086] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 09/21/2018] [Accepted: 10/02/2018] [Indexed: 12/15/2022] Open
Abstract
Atopic dermatitis (AD) is a recurrent, chronic, and inflammatory skin disease, which processes with severe itchiness. It often coexists with different atopic diseases. The number of people suffering from AD is relatively high. Epidemiological research demonstrates that 15–30% of children and 2–10% adults suffer from AD. The disease has significant negative social and economic impacts, substantially decreasing the quality of life of the patients and their families. Thanks to enormous progress in science and technology, it becomes possible to recognise complex genetic, immunological, and environmental factors and epidermal barrier defects that play a role in the pathogenesis of AD. We hope that the new insight on cytokines in AD will lead to new, individualised therapy and will open different therapeutic possibilities. In this article, we will focus on the cytokines, interleukin (IL)-17, IL-19, IL-33, and TSLP (thymic stromal lymphopoietin), which play a significant role in AD pathogenesis and may become the targets for future biologic therapies in AD. It is believed that the new era of biological drugs in AD will give a chance for patients to receive more successful treatment.
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28
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Mande P, Zirak B, Ko WC, Taravati K, Bride KL, Brodeur TY, Deng A, Dresser K, Jiang Z, Ettinger R, Fitzgerald KA, Rosenblum MD, Harris JE, Marshak-Rothstein A. Fas ligand promotes an inducible TLR-dependent model of cutaneous lupus-like inflammation. J Clin Invest 2018; 128:2966-2978. [PMID: 29889098 PMCID: PMC6025993 DOI: 10.1172/jci98219] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 04/17/2018] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptors TLR7 and TLR9 are both implicated in the activation of autoreactive B cells and other cell types associated with systemic lupus erythematosus (SLE) pathogenesis. However, Tlr9-/- autoimmune-prone strains paradoxically develop more severe disease. We have now leveraged the negative regulatory role of TLR9 to develop an inducible rapid-onset murine model of systemic autoimmunity that depends on T cell detection of a membrane-bound OVA fusion protein expressed by MHC class II+ cells, expression of TLR7, expression of the type I IFN receptor, and loss of expression of TLR9. These mice are distinguished by a high frequency of OVA-specific Tbet+, IFN-γ+, and FasL-expressing Th1 cells as well as autoantibody-producing B cells. Unexpectedly, contrary to what occurs in most models of SLE, they also developed skin lesions that are very similar to those of human cutaneous lupus erythematosus (CLE) as far as clinical appearance, histological changes, and gene expression. FasL was a key effector mechanism in the skin, as the transfer of FasL-deficient DO11gld T cells completely failed to elicit overt skin lesions. FasL was also upregulated in human CLE biopsies. Overall, our model provides a relevant system for exploring the pathophysiology of CLE as well as the negative regulatory role of TLR9.
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Affiliation(s)
- Purvi Mande
- Department of Medicine, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | - Bahar Zirak
- Department of Dermatology, UCSF, San Francisco, California, USA
| | - Wei-Che Ko
- Department of Dermatology, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | - Keyon Taravati
- Department of Dermatology, UCSF, San Francisco, California, USA
| | - Karen L Bride
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Tia Y Brodeur
- Department of Medicine, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | - April Deng
- Department of Dermatology, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | - Karen Dresser
- Department of Dermatology, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | - Zhaozhao Jiang
- Department of Medicine, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | - Rachel Ettinger
- Respiratory, Autoimmunity, and Inflammation Department, MedImmune, Gaithersburg, Maryland, USA
| | - Katherine A Fitzgerald
- Department of Medicine, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | | | - John E Harris
- Department of Dermatology, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA
| | - Ann Marshak-Rothstein
- Department of Medicine, University of Massachusetts School of Medicine, Worcester, Massachusetts, USA.,Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
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29
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Effects of microRNA-19b on airway remodeling, airway inflammation and degree of oxidative stress by targeting TSLP through the Stat3 signaling pathway in a mouse model of asthma. Oncotarget 2018; 8:47533-47546. [PMID: 28472780 PMCID: PMC5564584 DOI: 10.18632/oncotarget.17258] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 02/12/2017] [Indexed: 02/07/2023] Open
Abstract
This study explored the effects of microRNA-19b (miR-19b) on airway remodeling, airway inflammation, and degree of oxidative stress in a mouse model of asthma. Bioinformatics analyses and dual luciferase reporter gene assays revealed that thymic stromal lymphopoietin (TSLP) is a direct target of miR-19b. An asthma model was established via ovalbumin (OVA) sensitization and challenge in 72 female BALB/c mice. Mice were then assigned to saline, OVA-sensitized, saline+miR-19b mimics, saline+anti-TSLP, OVA-sensitized+miR-19b mimics, OVA-sensitized+mimics scramble, OVA-sensitized+anti-TSLP, and OVA-sensitized+IgG2a groups. Pathological morphology changes were detected through hematoxylin/eosin, Masson, and periodic acid-Schiff staining. miR-19b was downregulated while TSLP and Stat3 were upregulated in the OVA-sensitized group compared with the saline group. Bronchoalveolar lavage fluid samples from OVA-sensitized mice showed increased total protein, IL-4, IL-5 and IL-6 levels, numbers of inflammatory cells, eosinophils, neutrophils, mononuclear macrophages and lymphocytes, and eosinophil% compared to controls. Lung tissues from sensitized mice exhibited decreased superoxide dismutase activity and increased methane dicarboxylic aldehyde levels. The effects of OVA sensitization were reversed in the OVA-sensitized+miR-19b mimics and OVA-sensitized+anti-TSLP groups. These findings suggest miR-19b reduces airway remodeling, airway inflammation, and degree of oxidative stress by inhibiting Stat3 signaling through TSLP downregulation in a mouse asthma model.
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30
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Abstract
Allergic inflammation is a type 2 immune disorder classically characterized by high levels of immunoglobulin E (IgE) and the development of Th2 cells. Asthma is a pulmonary allergic inflammatory disease resulting in bronchial hyper-reactivity. Atopic asthma is defined by IgE antibody-mediated mast cell degranulation, while in non-atopic asthma there is no allergen-specific IgE and more involvement of innate immune cells, such as basophils, group 2 innate lymphoid cells (ILC2), and eosinophils. Recently, protease allergens were shown to cause asthmatic responses in the absence of Th2 cells, suggesting that an innate cell network (IL-33/TSLP-basophil-ILC2-IL-5/IL-13 axis) can facilitate the sensitization phase of type 2 inflammatory responses. Recent evidence also indicates that in the chronic phase, these innate immune cells directly or indirectly contribute to the adaptive Th2 cell responses. In this review, we discuss the role of Th2 cytokines (IL-4 and IL-13) and innate immune cells (mast cells, basophils, ILC2s, and dendritic cells) in the cross-talk between innate and adaptive inflammatory responses.
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Affiliation(s)
- Masato Kubo
- Division of Molecular Pathology, Research Institute for Biomedical Science, Tokyo University of Science, Noda, Japan.,Laboratory for Cytokine Regulation, Research Center for Integrative Medical Science (IMS), RIKEN Yokohama Institute, Yokohama, Kanagawa, Japan
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31
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Han H, Roan F, Ziegler SF. The atopic march: current insights into skin barrier dysfunction and epithelial cell-derived cytokines. Immunol Rev 2018; 278:116-130. [PMID: 28658558 DOI: 10.1111/imr.12546] [Citation(s) in RCA: 179] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Atopic dermatitis often precedes the development of other atopic diseases. The atopic march describes this temporal relationship in the natural history of atopic diseases. Although the pathophysiological mechanisms that underlie this relationship are poorly understood, epidemiological and genetic data have suggested that the skin might be an important route of sensitization to allergens. Animal models have begun to elucidate how skin barrier defects can lead to systemic allergen sensitization. Emerging data now suggest that epithelial cell-derived cytokines such as thymic stromal lymphopoietin (TSLP), IL-33, and IL-25 may drive the progression from atopic dermatitis to asthma and food allergy. This review focuses on current concepts of the role of skin barrier defects and epithelial cell-derived cytokines in the initiation and maintenance of allergic inflammation and the atopic march.
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Affiliation(s)
- Hongwei Han
- Immunology Program, Benaroya Research Institute, Seattle, WA, USA
| | - Florence Roan
- Immunology Program, Benaroya Research Institute, Seattle, WA, USA
| | - Steven F Ziegler
- Immunology Program, Benaroya Research Institute, Seattle, WA, USA.,Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA
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32
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A tumor-myeloid cell axis, mediated via the cytokines IL-1α and TSLP, promotes the progression of breast cancer. Nat Immunol 2018; 19:366-374. [PMID: 29556001 PMCID: PMC5864553 DOI: 10.1038/s41590-018-0066-6] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 02/08/2018] [Indexed: 02/07/2023]
Abstract
Tumors actively manipulate the immune response through the production of factors that attract immune cells and subsequently alter their ability to recognize and effectively remove the tumor. While this immune evasion mechanism is an important aspect of tumor survival, the factors that serve as primary growth factors for the tumor are less understood. Here, we demonstrated a novel mechanism by which breast cancer cells manipulate tumor-infiltrating myeloid cells to maintain their survival. Tumor-derived interleukin 1α (IL-1α), acting on infiltrating myeloid cells, induced the expression of a critical tumor survival factor, the cytokine thymic stromal lymphopoietin (TSLP). TSLP promoted the survival of the tumor cells through induction of Bcl-2 expression. TSLP signaling was also required for metastasis to the lung. These studies define a novel IL-1α–TSLP-mediated crosstalk between tumor-infiltrating myeloid cells and tumor cells in the control of metastatic breast cancer.
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33
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Han H, Roan F, Johnston LK, Smith DE, Bryce PJ, Ziegler SF. IL-33 promotes gastrointestinal allergy in a TSLP-independent manner. Mucosal Immunol 2018; 11:394-403. [PMID: 28656964 PMCID: PMC5745299 DOI: 10.1038/mi.2017.61] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 05/13/2017] [Indexed: 02/04/2023]
Abstract
Atopic dermatitis (AD) often precedes asthma and food allergy, indicating that epicutaneous sensitization to allergens may be important in the induction of allergic responses at other barrier surfaces. Thymic stromal lymphopoietin (TSLP) and interleukin (IL)-33 are two cytokines that may drive type 2 responses in the skin; both are potential targets in the treatment of allergic diseases. We tested the functional role of IL-33 and the interplay between IL-33 and TSLP in mouse models of atopic march and gastrointestinal (GI) allergy. IL-33-driven allergic disease occurred in a TSLP-independent manner. In contrast, mice lacking IL-33 signaling were protected from onset of allergic diarrhea in TSLP-driven disease. Epithelial-derived IL-33 was important in this model, as specific loss of IL-33 expression in the epithelium attenuated cutaneous inflammation. Notably, the development of diarrhea following sensitization with TLSP plus antigen was ameliorated even when IL-33 was blocked after sensitization. Thus, IL-33 has an important role during early cutaneous inflammation and during challenge. These data reveal critical roles for IL-33 in the "atopic march" that leads from AD to GI allergy.
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Affiliation(s)
- H Han
- Immunology Program, Benaroya Research Institute, Seattle, Washington, USA
| | - F Roan
- Immunology Program, Benaroya Research Institute, Seattle, Washington, USA
- Division of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
| | - L K Johnston
- Division of Allergy-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - D E Smith
- Department of Inflammation Research, Amgen Inc., Seattle, Washington, USA
| | - P J Bryce
- Division of Allergy-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - S F Ziegler
- Immunology Program, Benaroya Research Institute, Seattle, Washington, USA
- Department of Immunology, University of Washington School of Medicine, Seattle, Washington, USA
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34
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Park HJ, Lee SW, Hong S. Regulation of Allergic Immune Responses by Microbial Metabolites. Immune Netw 2018; 18:e15. [PMID: 29503745 PMCID: PMC5833122 DOI: 10.4110/in.2018.18.e15] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 02/18/2018] [Accepted: 02/21/2018] [Indexed: 01/06/2023] Open
Abstract
Emerging evidence demonstrates that the microbiota plays an essential role in shaping the development and function of host immune responses. A variety of environmental stimuli, including foods and commensals, are recognized by the host through the epithelium, acting as a physical barrier. Two allergic diseases, atopic dermatitis and food allergy, are closely linked to the microbiota, because inflammatory responses occur on the epidermal border. The microbiota generates metabolites such as short-chain fatty acids and poly-γ-glutamic acid (γPGA), which can modulate host immune responses. Here, we review how microbial metabolites can regulate allergic immune responses. Furthermore, we focus on the effect of γPGA on allergic T helper (Th) 2 responses and its therapeutic application.
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Affiliation(s)
- Hyun Jung Park
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul 05006, Korea
| | - Sung Won Lee
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul 05006, Korea
| | - Seokmann Hong
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul 05006, Korea
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35
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Nausch N, Mutapi F. Group 2 ILCs: A way of enhancing immune protection against human helminths? Parasite Immunol 2018; 40:e12450. [PMID: 28626924 PMCID: PMC5811928 DOI: 10.1111/pim.12450] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 06/12/2017] [Indexed: 12/13/2022]
Abstract
Group 2 innate lymphoid cells (ILC2s) play crucial roles in type 2 immune responses associated with allergic and autoimmune diseases, viral and helminth infections and tissue homoeostasis. Experimental models show that in helminth infections ILC2s provide an early source of type 2 cytokines and therefore are essential for the induction of potentially protective type 2 responses. Much of our knowledge of ILC2s in helminth infections has come from experimental mouse models with very few studies analysing ILC2s in natural human infections. In attempts to harness knowledge from paradigms of the development of protective immunity in human helminth infections for vaccine development, the role of ILC2 cells could be pivotal. So far, potential vaccines against human helminth infections have failed to provide effective protection when evaluated in human studies. In addition to appropriate antigen selection, it is apparent that more detailed knowledge on mechanisms of induction and maintenance of protective immune responses is required. Therefore, there is need to understand how ILC2 cells induce type 2 responses and subsequently support the development of a protective immune response in the context of immunizations. Within this review, we summarize the current knowledge of the biology of ILC2s, discuss the importance of ILC2s in human helminth infections and explore how ILC2 responses could be boosted to efficiently induce protective immunity.
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Affiliation(s)
- N. Nausch
- Pediatric Pneumology and Infectious Diseases Group, Department of General Pediatrics, Neonatology and Pediatric CardiologyUniversity Children's Hospital, Heinrich‐Heine‐University DuesseldorfDuesseldorfGermany
| | - F. Mutapi
- Institute of Immunology and Infection Research, Centre for Immunity, Infection and EvolutionSchool of Biological Sciences, University of EdinburghEdinburghUK
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36
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Abstract
T helper 2 (Th2) cells are defined by their ability to produce the hallmark cytokine IL-4. However, to mediate allergic inflammation in tissues, Th2 cells must secrete additional cytokines including IL-13 and IL-5. We used IL-4 and IL-13 dual-reporter mice to show that naive CD4+ T cells cultured in the presence of IL-4 and thymic stromal lymphopoietin (TSLP) generate a population of IL-4negIL-13pos Th2 cells that develop from IL-4neg precursors and express the Th2 effector cytokines IL-5 and IL-9. In vivo, high TSLP levels promote the development of a similar population of IL-4negIL-13pos T cells that also express Gata3, Il5, and Il3 transcripts. Thus, TSLP drives the early differentiation of a distinct population of effector Th2 cells with pro-inflammatory properties. T helper 2 (Th2) cells are pivotal in the development of allergy. Allergen exposure primes IL-4+ Th2 cells in lymph node, but production of effector cytokines including IL-5 and IL-13 is thought to require additional signals from antigen and the environment. Here we report that a substantial proportion of naive CD4+ T cells in spleen and lymph node express receptors for the epithelium-derived inflammatory cytokine thymic stromal lymphopoietin (TSLP). Culture of naive CD4+ T cells in anti-(a)CD3, aCD28, and TSLP-supplemented Th2 conditions enabled the development of a unique population of IL-13-single positive (IL-13-SP) CD4+ T cells; TSLP and Th2 conditions were both required for their development. Sorting experiments revealed that IL-13-SP Th2 cells originated from IL-4-negative precursors and coexpressed transcripts for the Th2 cytokines IL-5 and IL-9. In vivo, high TSLP levels acted directly on CD4+ T cells to induce the development of IL-13-SP and IL-4+IL-13+ double-positive populations in lymph node. These cells were phenotypically similar to Th2 effector cells and were CXCR5lowPD1low and expressed low levels of Bcl6 and Il21 transcripts and high levels of Gata3, Il3, and Il5. Our findings suggest a role of TSLP in directly promoting Th2 cell effector function and support the notion of TSLP as a key driver of Th2 inflammation.
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37
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Orellana A, García-González V, López R, Pascual-Guiral S, Lozoya E, Díaz J, Casals D, Barrena A, Paris S, Andrés M, Segarra V, Vilella D, Malhotra R, Eastwood P, Planagumà A, Miralpeix M, Nueda A. Application of a phenotypic drug discovery strategy to identify biological and chemical starting points for inhibition of TSLP production in lung epithelial cells. PLoS One 2018; 13:e0189247. [PMID: 29320511 PMCID: PMC5761851 DOI: 10.1371/journal.pone.0189247] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 11/24/2017] [Indexed: 11/18/2022] Open
Abstract
Thymic stromal lymphopoietin (TSLP) is a cytokine released by human lung epithelium in response to external insult. Considered as a master switch in T helper 2 lymphocyte (Th2) mediated responses, TSLP is believed to play a key role in allergic diseases including asthma. The aim of this study was to use a phenotypic approach to identify new biological and chemical starting points for inhibition of TSLP production in human bronchial epithelial cells (NHBE), with the objective of reducing Th2-mediated airway inflammation. To this end, a phenotypic screen was performed using poly I:C / IL-4 stimulated NHBE cells interrogated with a 44,974 compound library. As a result, 85 hits which downregulated TSLP protein and mRNA levels were identified and a representative subset of 7 hits was selected for further characterization. These molecules inhibited the activity of several members of the MAPK, PI3K and tyrosine kinase families and some of them have been reported as modulators of cellular phenotypic endpoints like cell-cell contacts, microtubule polymerization and caspase activation. Characterization of the biological profile of the hits suggested that mTOR could be a key activity involved in the regulation of TSLP production in NHBE cells. Among other targeted kinases, inhibition of p38 MAPK and JAK kinases showed different degrees of correlation with TSLP downregulation, while Syk kinase did not seem to be related. Overall, inhibition of TSLP production by the selected hits, rather than resulting from inhibition of single isolated targets, appeared to be due to a combination of activities with different levels of relevance. Finally, a hit expansion exercise yielded additional active compounds that could be amenable to further optimization, providing an opportunity to dissociate TSLP inhibition from other non-desired activities. This study illustrates the potential of phenotypic drug discovery to complement target based approaches by providing new chemistry and biology leads.
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Affiliation(s)
- Adelina Orellana
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | | | - Rosa López
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | | | - Estrella Lozoya
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Julia Díaz
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Daniel Casals
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Antolín Barrena
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Stephane Paris
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Miriam Andrés
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Victor Segarra
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Dolors Vilella
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Rajneesh Malhotra
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Paul Eastwood
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | - Anna Planagumà
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
| | | | - Arsenio Nueda
- Almirall R&D Center, Almirall S.A., Sant Feliu de Llobregat, Barcelona, Spain
- * E-mail:
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Basophil-derived IL-4 promotes epicutaneous antigen sensitization concomitant with the development of food allergy. J Allergy Clin Immunol 2018; 141:223-234.e5. [DOI: 10.1016/j.jaci.2017.02.035] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 01/13/2017] [Accepted: 02/13/2017] [Indexed: 12/17/2022]
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Deckers J, Bougarne N, Mylka V, Desmet S, Luypaert A, Devos M, Tanghe G, Van Moorleghem J, Vanheerswynghels M, De Cauwer L, Thommis J, Vuylsteke M, Tavernier J, Lambrecht BN, Hammad H, De Bosscher K. Co-Activation of Glucocorticoid Receptor and Peroxisome Proliferator-Activated Receptor-γ in Murine Skin Prevents Worsening of Atopic March. J Invest Dermatol 2017; 138:1360-1370. [PMID: 29288652 DOI: 10.1016/j.jid.2017.12.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 12/06/2017] [Accepted: 12/11/2017] [Indexed: 12/18/2022]
Abstract
Children with atopic dermatitis show an increased risk to develop asthma later in life, a phenomenon referred to as "atopic march," which emphasizes the need for secondary prevention therapies. This study aimed to investigate whether relief of skin inflammation by glucocorticoids and peroxisome proliferator-activated receptor agonists might influence the subsequent development of asthma in a murine model for the atopic march in which mice were repeatedly exposed to house dust mite via the skin, followed by exposure to house dust mite in lungs. To abrogate atopic dermatitis, mice received topical treatment with glucocorticoid receptor/peroxisome proliferator-activated receptor-γ agonists. Nuclear receptor ligand effects were assessed on primary keratinocytes and dendritic cells, as central players in skin inflammation. Prior house dust mite-induced skin inflammation aggravates allergic airway inflammation and induces a mixed T helper type 2/T helper type 17 response in the lungs. Cutaneous combined activation of glucocorticoid receptor/peroxisome proliferator-activated receptor-γ reduced skin inflammation to a higher extent compared to single activation. Additive anti-inflammatory effects were more prominent in dendritic cells, as compared to keratinocytes. Alleviation of allergic skin inflammation by activation of glucocorticoid receptor/peroxisome proliferator-activated receptor-γ appeared insufficient to avoid the allergic immune response in the lungs, but efficiently reduced asthma severity by counteracting the Th17 response. Glucocorticoid receptor/peroxisome proliferator-activated receptor-γ co-activation represents a potent remedy against allergic skin inflammation and worsening of atopic march.
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Affiliation(s)
- Julie Deckers
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium; Laboratory of Immunoregulation, VIB Center for Inflammation Research, Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Nadia Bougarne
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Viacheslav Mylka
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Sofie Desmet
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Astrid Luypaert
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Michael Devos
- Molecular Signaling and Cell Death Unit, VIB Center for Inflammation Research, Department for Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Giel Tanghe
- Molecular Signaling and Cell Death Unit, VIB Center for Inflammation Research, Department for Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Justine Van Moorleghem
- Laboratory of Immunoregulation, VIB Center for Inflammation Research, Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Manon Vanheerswynghels
- Laboratory of Immunoregulation, VIB Center for Inflammation Research, Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Lode De Cauwer
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Jonathan Thommis
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium
| | | | - Jan Tavernier
- Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Immunoregulation, VIB Center for Inflammation Research, Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Hamida Hammad
- Laboratory of Immunoregulation, VIB Center for Inflammation Research, Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Karolien De Bosscher
- Nuclear Receptor Lab, Ghent University, Ghent, Belgium; Receptor Research Laboratories, VIB Center for Medical Biotechnology, Department of Biochemistry, Ghent University, Ghent, Belgium.
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Li HT, Chen ZG, Liu H, Ye J, Zou XL, Wang YH, Yang HL, Meng P, Zhang TT. Treatment of allergic rhinitis with CpG oligodeoxynucleotides alleviates the lower airway outcomes of combined allergic rhinitis and asthma syndrome via a mechanism that possibly involves in TSLP. Exp Lung Res 2017; 42:322-33. [PMID: 27541375 DOI: 10.1080/01902148.2016.1215571] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
PURPOSE Thymic stromal lymphopoietin (TSLP) is a critical regulator of immune responses associated with Th2 cytokine-mediated inflammation. Intranasal administration of oligodeoxynucleotides with CpG motifs (CpG-ODNs) might improve lower airway outcomes of combined allergic rhinitis and asthma syndrome (CARAS), but the inherent mechanisms of CpG-ODNs are not well defined. This study investigated whether CpG-ODNs treated to upper airway could reduce lower airway TSLP expression as well as whether this reduction could contribute to the alleviation of lower allergic inflammation and airway hyper-reactivity (AHR) in CARAS mice. MATERIALS AND METHODS Ovalbumin (OVA)-sensitized BALB/c mice were intranasal OVA exposure three times a week for 3 weeks. CpG-ODNs or an anti-TSLP mAb was administered to a subset of these mice 1 hour after intranasal OVA challenge, followed by 5 days of OVA aerosol challenge. The resulting immunological variables, nasal symptoms, and nasal mucosa and lung tissues pathology were evaluated. TSLP production in the lung tissues and bronchoalveolar lavage fluid (BALF) were determined by RT-PCR, western blotting or enzyme-linked immunosorbent assay. RESULTS The CARAS mice exhibited overexpression of TSLP in the lung tissues and BALF, and also demonstrated significant increases in BALF and splenocyte Th2-associated cytokine production, serum OVA-specific IgE, nose and lung pathologies, and AHR. Intranasal administration of CpG-ODNs restored TSLP in the lower airway, and it significantly reduced the following parameters: Th2-type cytokine production levels; the percentage of eosinophils in the BALF; IL-4 and IL-5 concentrations in the supernatants of cultured splenic lymphocytes; serum OVA-specific IgE; peribronchial inflammation score in the lungs; and nose pathology and nasal symptoms. Similar results were obtained when the CARAS mice were treated with an anti-TSLP mAb to block intranasal TSLP activity. CONCLUSIONS Treatment with intranasal CpG-ODNs improves lower airway immunological variable outcomes in the CARAS model via a mechanism that possibly involves in suppressing pulmonary TSLP-triggered allergic inflammation.
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Affiliation(s)
- Hong-Tao Li
- a Department of Pulmonary Diseases , Institute of Respiratory Diseases of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Zhuang-Gui Chen
- b Department of Pediatrics , The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Hui Liu
- a Department of Pulmonary Diseases , Institute of Respiratory Diseases of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Jin Ye
- c Department of Otolaryngology, Head and Neck Surgery , The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Xiao-Ling Zou
- a Department of Pulmonary Diseases , Institute of Respiratory Diseases of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Yan-Hong Wang
- a Department of Pulmonary Diseases , Institute of Respiratory Diseases of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Hai-Ling Yang
- a Department of Pulmonary Diseases , Institute of Respiratory Diseases of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Ping Meng
- a Department of Pulmonary Diseases , Institute of Respiratory Diseases of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Tian-Tuo Zhang
- a Department of Pulmonary Diseases , Institute of Respiratory Diseases of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
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Lander JM, Supp DM, He H, Martin LJ, Chen X, Weirauch MT, Boyce ST, Kopan R. Analysis of chromatin accessibility in human epidermis identifies putative barrier dysfunction-sensing enhancers. PLoS One 2017; 12:e0184500. [PMID: 28953906 PMCID: PMC5617145 DOI: 10.1371/journal.pone.0184500] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 08/24/2017] [Indexed: 01/12/2023] Open
Abstract
To identify putative gene regulatory regions that respond to epidermal injury, we mapped chromatin dynamics in a stratified human epidermis during barrier maturation and disruption. Engineered skin substitutes (ESS) cultured at the air-liquid interface were used as a model of developing human epidermis with incomplete barrier formation. The epidermal barrier stabilized following engraftment onto immunocompromised mice, and was compromised again upon injury. Modified formaldehyde-assisted isolation of regulatory elements (FAIRE) was used to identify accessible genomic regions characteristic of monolayer keratinocytes, ESS in vitro, grafted ESS, and tape-stripped ESS graft. We mapped differentiation- and maturation-associated changes in transcription factor binding sites enriched at each stage and observed overrepresentation of AP-1 gene family motifs in barrier-deficient samples. Transcription of TSLP, an important effector of immunological memory in response to allergen exposure, was dramatically elevated in our barrier-deficient samples. We identified dynamic DNA elements that correlated with TSLP induction and may contain enhancers that regulate TSLP. Two dynamic regions were located near the TSLP promoter and overlapped with allergy-associated SNPs rs17551370 and rs2289877, strongly implicating these loci in the regulation of TSLP expression in allergic disease. Additional dynamic chromatin regions ~250kb upstream of the TSLP promoter were found to be in high linkage disequilibrium with allergic disease SNPs. Taken together, these results define dynamic chromatin accessibility changes during epidermal development and dysfunction.
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Affiliation(s)
- Julie M. Lander
- Division of Developmental Biology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Dorothy M. Supp
- Research Department, Shriners Hospitals for Children, Cincinnati, Ohio, United States of America
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Hua He
- Division of Human Genetics, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Lisa J. Martin
- Division of Human Genetics, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Xiaoting Chen
- Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Matthew T. Weirauch
- Division of Developmental Biology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
- Division of Biomedical Informatics, Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Steven T. Boyce
- Research Department, Shriners Hospitals for Children, Cincinnati, Ohio, United States of America
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Raphael Kopan
- Division of Developmental Biology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- * E-mail:
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Liu Y, Feng GZ, Du Q, Jin XX, Du XR. Fine particulate matter aggravates allergic airway inflammation through thymic stromal lymphopoietin activation in mice. Mol Med Rep 2017; 16:4201-4207. [PMID: 28765890 DOI: 10.3892/mmr.2017.7089] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 04/25/2017] [Indexed: 11/05/2022] Open
Abstract
Fine particulate matter (PM2.5) has been linked to exacerbation of allergic airway inflammation in mice. However, the mechanism underlying exposure to PM2.5 and subsequent and adverse effects remains to be fully elucidated. Therefore, the present study aimed to investigate the effects of PM2.5 by different levels on airway inflammation in mouse models of in allergic and steroid‑resistant asthma. BALB/c mice were nasally instilled with PBS (control) or 10, 31.6 or 100 µg PM2.5, and randomly assigned into nine groups. The acute asthma model was previously induced to investigate the change of inflammatory cells in bronchoalveolar lavage fluid (BALF). Histopathological changes of the lung were assessed, in addition to levels of interleukin (IL)‑4 and IL‑13 in BALF and immunoglobulin Ein serum. Thymic stromal lymphopoietin (TSLP) proteinexpression levels were assessed by western blotting. The present study demonstrated that medium‑ and high‑dose PM2.5 is linked to acute exacerbation of allergic airway inflammation in mice. In conclusion, the pathological mechanisms of PM2.5 may be associated with allergic/steroid‑resistant airway inflammation, T‑cell helper (Th)1/Th2 cytokine production and upregulation of TSLP expression in a murine model of allergic and steroid-resistant asthma.
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Affiliation(s)
- Yan Liu
- Department of Respiratory, The Central Hospital of Maanshan, Maanshan, Anhui 243000, P.R. China
| | - Gan-Zhu Feng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, P.R. China
| | - Qiang Du
- Department of Respiratory Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, P.R. China
| | - Xiao-Xiang Jin
- Department of Respiratory, The Central Hospital of Maanshan, Maanshan, Anhui 243000, P.R. China
| | - Xing-Ran Du
- Department of Respiratory Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, P.R. China
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Abstract
Allergic diseases, which have escalated in prevalence in recent years, arise as a result of maladaptive immune responses to ubiquitous environmental stimuli. Why only certain individuals mount inappropriate type 2 immune responses to these otherwise harmless allergens has remained an unanswered question. Mounting evidence suggests that the epithelium, by sensing its environment, is the central regulator of allergic diseases. Once considered to be a passive barrier to allergens, epithelial cells at mucosal surfaces are now considered to be the cornerstone of the allergic diathesis. Beyond their function as maintaining barrier at mucosal surfaces, mucosal epithelial cells through the secretion of mediators like IL-25, IL-33, and TSLP control the fate of downstream allergic immune responses. In this review, we will discuss the advances in recent years regarding the process of allergen recognition and secretion of soluble mediators by epithelial cells that shape the development of the allergic response.
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Affiliation(s)
- Naina Gour
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, MD, 21205, USA
| | - Stephane Lajoie
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, MD, 21205, USA.
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Abstract
PURPOSE OF REVIEW Food allergies (FAs) are a growing epidemic in western countries with poorly defined etiology. Defined as an adverse immune response to common food allergens, FAs present heterogeneously as a single- or multi-organ response that ranges in severity from localized hives and angioedema to systemic anaphylaxis. RECENT FINDINGS Current research focusing on epithelial-derived cytokines contends that temporal regulation by these factors impact initial sensitization and persistence of FA responses upon repeated food allergen exposure. Mechanistic understanding of FA draws insight from a myriad of atopic conditions studied in humans and modeled in mice. In this review, we will highlight how epithelial-derived cytokines initiate and then potentiate FAs. We will also review existing evidence of the contribution of other atopic diseases to FA pathogenesis and whether FA symptoms overlap with other atopic diseases.
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Han H, Ziegler SF. Intradermal administration of IL-33 induces allergic airway inflammation. Sci Rep 2017; 7:1706. [PMID: 28490737 PMCID: PMC5431780 DOI: 10.1038/s41598-017-01863-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 04/04/2017] [Indexed: 02/07/2023] Open
Abstract
Approximately half of all atopic dermatitis (AD) patients subsequently develop asthma, particularly those with severe AD. This association, suggesting a role for AD as an entry point for subsequent allergic disease, is a phenomenon known as the “atopic march”. While the underlying cause of the atopic march remains unknown, recent evidence suggests that epithelial cell (EC)-derived cytokines play a major role. We showed that mice exposed to antigen through the skin, in the presence of IL-33, developed antigen-specific airway inflammation when later challenged in the lung. IL-33 signaling was dispensable during effector/challenge phase. These data reveal critical roles for IL-33 in the “atopic march” and will offer a new therapeutic target in the treatment and prevention of allergic asthma.
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Affiliation(s)
- Hongwei Han
- Immunology Program, Benaroya Research Institute, Seattle, Washington, 98101, USA
| | - Steven F Ziegler
- Immunology Program, Benaroya Research Institute, Seattle, Washington, 98101, USA. .,Department of Immunology, University of Washington School of Medicine, Seattle, Washington, 98195, USA.
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Karampitsakos T, Woolard T, Bouros D, Tzouvelekis A. Toll-like receptors in the pathogenesis of pulmonary fibrosis. Eur J Pharmacol 2016; 808:35-43. [PMID: 27364757 DOI: 10.1016/j.ejphar.2016.06.045] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/26/2016] [Accepted: 06/27/2016] [Indexed: 02/08/2023]
Abstract
Pulmonary fibrosis (PF) constitutes the end stage of a broad range of heterogeneous interstitial lung diseases, characterized by the destruction of the pulmonary parenchyma, deposition of extracellular matrix and dramatic changes in the phenotype of both fibroblasts and alveolar epithelial cells. More than 200 causes of pulmonary fibrosis have been identified so far, yet the most common form is idiopathic pulmonary fibrosis (IPF). IPF is a lethal lung disorder of unknown etiology with a gradually increasing worldwide incidence and a median survival of 3-5 years from the time of diagnosis. Despite intense research efforts, the pathogenesis remains elusive and no effective treatment is available. Accumulating body of evidence suggests an abnormal wound healing response followed by extracellular matrix deposition, destruction of lung architecture, ultimately leading to respiratory failure. The contribution of immune system in lung fibrogenesis had been largely underscored due to the absence of response to immunosuppressive agents; however, the premise that lung fibrosis has an immunologic background has been recently revived. Toll-like receptors (TLRs) are pattern recognition receptors (PRRs), which link innate and adaptive immune response and regulate wound healing. TLRs promote tissue repair or fibrosis in many disease settings including lung fibrosis, albeit with profound differences depending on the cellular microenvironment. This review summarizes the current state of knowledge regarding the mechanistic implications between TLRs and lung fibrosis and highlights the therapeutic potential of targeting TLR signaling at the ligand or receptor level.
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Affiliation(s)
- Theodoros Karampitsakos
- Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Messogion Avenue 152, Athens 11527, Greece
| | - Tony Woolard
- Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, P.O. Box 208057 New Haven, CT, USA
| | - Demosthenes Bouros
- Academic Department of Pneumonology, Hospital for Diseases of the Chest, "Sotiria", Medical School, University of Athens, Messogion Avenue 152, Athens 11527, Greece
| | - Argyris Tzouvelekis
- Department of Internal Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, P.O. Box 208057 New Haven, CT, USA.
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TSLP polymorphisms, allergen exposures, and the risk of atopic disorders in children. Ann Allergy Asthma Immunol 2015; 116:139-45.e1. [PMID: 26712523 DOI: 10.1016/j.anai.2015.11.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/12/2015] [Accepted: 11/16/2015] [Indexed: 11/22/2022]
Abstract
BACKGROUND Thymic stromal lymphopoietin (TSLP) polymorphisms influence atopy risk. TSLP might constitute a key interface between the environment and the allergic immune response. However, whether the effects of TSLP polymorphisms on atopic dermatitis (AD) are modified by allergic sensitization is not clear. OBJECTIVE To evaluate the joint effect of allergic sensitization and TSLP polymorphisms on AD and to test whether TSLP polymorphisms increase the risk of asthma in children with AD. METHODS A total of 1,520 kindergarten children (375 with AD and 1,145 controls) selected from the Childhood Environment and Allergic Diseases Study cohort in 2010 were enrolled. Information about allergic diseases and environmental exposures was collected by questionnaire. Skin prick tests were performed to measure allergic sensitization. TSLP polymorphisms were genotyped by TaqMan assay. Logistic regressions were conducted to estimate the association among TSLP polymorphisms, allergic sensitization, and AD. For replication, a subsample of the British Isle of Wight birth cohort was used. RESULTS The TSLP rs2289278 CC genotype increased the risk of AD (odds ratio 1.90, 95% confidence interval 1.12-3.22). In children sensitized to certain allergens, a genetic predisposition (rs2289278 genotype CC) significantly increased the risk of AD. These findings were replicated in the British subsample using rs2289276 genotypes TT and TC, which are in linkage disequilibrium with rs2289278. In subjects with AD, the rs2289278 C allele also significantly increased the risk of developing asthma (odds ratio 8.31, 95% confidence interval 1.08-64.13). CONCLUSION The association of rs2289278 with AD was stronger in children with allergic sensitization than in children without atopy. TSLP polymorphisms also increased the risk of asthma in children with AD.
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Shin JU, Kim SH, Kim H, Noh JY, Jin S, Park CO, Lee WJ, Lee DW, Lee JH, Lee KH. TSLP Is a Potential Initiator of Collagen Synthesis and an Activator of CXCR4/SDF-1 Axis in Keloid Pathogenesis. J Invest Dermatol 2015; 136:507-515. [PMID: 26824743 DOI: 10.1016/j.jid.2015.11.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 09/28/2015] [Accepted: 10/10/2015] [Indexed: 11/20/2022]
Abstract
Recently, thymic stromal lymphopoietin (TSLP), which is well studied in allergic diseases, has been reported in fibrotic diseases, including idiopathic pulmonary fibrosis and atopic dermatitis fibrosis. However, the role of TSLP in keloid is obscure. In this study, we assessed the expression of TSLP in keloid tissue and investigated the possible role of TSLP in keloid pathogenesis. We observed that TSLP expression was increased in keloid tissue compared to normal tissue. Furthermore, TSLP treatment induced increased collagen I and collagen III expression in fibroblasts via transforming growth factor-?; however, there was higher expression in keloid fibroblasts compared to normal fibroblasts. Stromal cell-derived factor-1?, which was recently reported to enhance wound healing through recruiting bone marrow-derived mesenchymal stem cells to the wound area, increased after TSLP treatment in fibroblasts and was primarily expressed in ?-smooth muscle action-positive myofibroblasts in keloid tissue. Furthermore, fibrocytes expressing CXCR4, a stromal cell-derived factor-1? receptor, were significantly increased in keloid tissue compared to normal tissue. Finally, intradermal TSLP injection on BALB/c mice increased stromal cell-derived factor-1? expression and CXCR4(+) fibrocytes infiltration. Our data suggest that TSLP is a potent inducer of collagen and transforming growth factor-? production in keloid fibroblasts. In addition, it might activate the CXCR4/stromal cell-derived factor-1 axis to increase fibrocyte infiltration into the keloid tissue.
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Affiliation(s)
- Jung U Shin
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seo Hyeong Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Hyeran Kim
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Yeon Noh
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Shan Jin
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea; Department of Dermatology, Yanbian University Hospital, Yanji, Jilin, China
| | - Chang Ook Park
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Won Jai Lee
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Institute for Human Tissue Restoration, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Won Lee
- Department of Plastic and Reconstructive Surgery, Severance Hospital, Institute for Human Tissue Restoration, Yonsei University College of Medicine, Seoul, Korea
| | - Ju Hee Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Hoon Lee
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea.
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Marshall NB, Lukomska E, Long CM, Kashon ML, Sharpnack DD, Nayak AP, Anderson KL, Jean Meade B, Anderson SE. Triclosan Induces Thymic Stromal Lymphopoietin in Skin Promoting Th2 Allergic Responses. Toxicol Sci 2015; 147:127-39. [PMID: 26048654 PMCID: PMC4734116 DOI: 10.1093/toxsci/kfv113] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Triclosan is an antimicrobial chemical incorporated into many personal, medical and household products. Approximately, 75% of the U.S. population has detectable levels of triclosan in their urine, and although it is not typically considered a contact sensitizer, recent studies have begun to link triclosan exposure with augmented allergic disease. We examined the effects of dermal triclosan exposure on the skin and lymph nodes of mice and in a human skin model to identify mechanisms for augmenting allergic responses. Triclosan (0%-3%) was applied topically at 24-h intervals to the ear pinnae of OVA-sensitized BALB/c mice. Skin and draining lymph nodes were evaluated for cellular responses and cytokine expression over time. The effects of triclosan (0%-0.75%) on cytokine expression in a human skin tissue model were also examined. Exposure to triclosan increased the expression of TSLP, IL-1β, and TNF-α in the skin with concomitant decreases in IL-25, IL-33, and IL-1α. Similar changes in TSLP, IL1B, and IL33 expression occurred in human skin. Topical application of triclosan also increased draining lymph node cellularity consisting of activated CD86(+)GL-7(+) B cells, CD80(+)CD86(+) dendritic cells, GATA-3(+)OX-40(+)IL-4(+)IL-13(+) Th2 cells and IL-17 A(+) CD4 T cells. In vivo antibody blockade of TSLP reduced skin irritation, IL-1β expression, lymph node cellularity, and Th2 responses augmented by triclosan. Repeated dermal exposure to triclosan induces TSLP expression in skin tissue as a potential mechanism for augmenting allergic responses.
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Affiliation(s)
- Nikki B Marshall
- *Allergy and Clinical Immunology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505;Biostatistics and Epidemiology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505 andVet Path Services, Inc., Mason 45040, Ohio
| | - Ewa Lukomska
- *Allergy and Clinical Immunology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505
| | - Carrie M Long
- *Allergy and Clinical Immunology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505
| | - Michael L Kashon
- Biostatistics and Epidemiology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505 and
| | | | - Ajay P Nayak
- *Allergy and Clinical Immunology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505
| | - Katie L Anderson
- *Allergy and Clinical Immunology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505
| | - B Jean Meade
- *Allergy and Clinical Immunology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505
| | - Stacey E Anderson
- *Allergy and Clinical Immunology Branch, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia 26505
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Hillen MR, Radstake TRDJ, Hack CE, van Roon JAG. Thymic stromal lymphopoietin as a novel mediator amplifying immunopathology in rheumatic disease: Fig. 1. Rheumatology (Oxford) 2015; 54:1771-9. [DOI: 10.1093/rheumatology/kev241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Indexed: 11/14/2022] Open
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