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Cui N, Xu X, Zhou F. Single-cell technologies in psoriasis. Clin Immunol 2024; 264:110242. [PMID: 38750947 DOI: 10.1016/j.clim.2024.110242] [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: 09/25/2023] [Revised: 03/30/2024] [Accepted: 05/01/2024] [Indexed: 05/24/2024]
Abstract
Psoriasis is a chronic and recurrent inflammatory skin disorder. The primary manifestation of psoriasis arises from disturbances in the cutaneous immune microenvironment, but the specific functions of the cellular components within this microenvironment remain unknown. Recent advancements in single-cell technologies have enabled the detection of multi-omics at the level of individual cells, including single-cell transcriptome, proteome, and metabolome, which have been successfully applied in studying autoimmune diseases, and other pathologies. These techniques allow the identification of heterogeneous cell clusters and their varying contributions to disease development. Considering the immunological traits of psoriasis, an in-depth exploration of immune cells and their interactions with cutaneous parenchymal cells can markedly advance our comprehension of the mechanisms underlying the onset and recurrence of psoriasis. In this comprehensive review, we present an overview of recent applications of single-cell technologies in psoriasis, aiming to improve our understanding of the underlying mechanisms of this disorder.
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Affiliation(s)
- Niannian Cui
- First School of Clinical Medicine, Anhui Medical University, Hefei 230032, China
| | - Xiaoqing Xu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, China; Institute of Dermatology, Anhui Medical University, Hefei, Anhui 230022, China; The Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui 230022, China
| | - Fusheng Zhou
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230031, China; Institute of Dermatology, Anhui Medical University, Hefei, Anhui 230022, China; The Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, Anhui 230022, China.
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2
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Guttman-Yassky E, Facheris P, Gomez-Arias PJ, Del Duca E, Da Rosa JC, Weidinger S, Bissonnette R, Armstrong AW, Seneschal J, Eyerich K, Estrada YD, Bose SN, Xu D, Chen A, Tatulych S, Güler E, Chan G, Page KM, Kerkmann U. Effect of abrocitinib on skin biomarkers in patients with moderate-to-severe atopic dermatitis. Allergy 2024; 79:1258-1270. [PMID: 38108208 DOI: 10.1111/all.15969] [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: 05/09/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND This is the first report on the effects of abrocitinib, a Janus kinase 1-selective inhibitor, on the expression of skin biomarkers in patients with moderate-to-severe atopic dermatitis (AD). METHODS JADE MOA (NCT03915496) was a double-blind Phase 2a trial. Adults were randomly assigned 1:1:1 to receive monotherapy with once-daily abrocitinib 200 mg, abrocitinib 100 mg, or placebo for 12 weeks. The primary endpoint was change from baseline in markers of inflammation (matrix metalloproteinase [MMP]-12), epidermal hyperplasia (keratin-16 [KRT16]), T-helper 2 (Th2) immune response (C-C motif chemokine ligand [CCL]17, CCL18, and CCL26), and Th22 immune response (S100 calcium binding protein A8, A9, and A12 [S100A8, S100A9, and S100A12]) in skin through 12 weeks. RESULTS A total of 46 patients received abrocitinib 200 mg (n = 14), abrocitinib 100 mg (n = 16), or placebo (n = 16). Abrocitinib improved AD clinical signs and reduced itch. Gene expression of MMP-12, KRT16, S100A8, S100A9, and S100A12 was significantly decreased from baseline with abrocitinib 200 mg (at Weeks 2, 4, and 12) and abrocitinib 100 mg (at Weeks 4 and 12) in a dose-dependent manner. Abrocitinib 200 mg resulted in significant decreases from baseline in CCL17 expression at Week 12 and CCL18 expression at Weeks 2, 4, and 12; no significant decreases were observed for CCL26. CONCLUSIONS Alongside improvements in clinical signs and symptoms of AD, 12 weeks of abrocitinib treatment resulted in downregulation of genes associated with inflammation, epidermal hyperplasia, and Th2 and Th22 immune responses in the skin of patients with moderate-to-severe AD.
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Affiliation(s)
- Emma Guttman-Yassky
- Icahn School of Medicine at Mount Sinai Medical Center, New York, New York, USA
| | - Paola Facheris
- Icahn School of Medicine at Mount Sinai Medical Center, New York, New York, USA
| | | | - Ester Del Duca
- Icahn School of Medicine at Mount Sinai Medical Center, New York, New York, USA
| | - Joel Correa Da Rosa
- Icahn School of Medicine at Mount Sinai Medical Center, New York, New York, USA
| | | | | | | | - Julien Seneschal
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin Disorders, Hospital Saint-André, Bordeaux, France
- Bordeaux University, CNRS UMR 5164, Immunoconcept, Bordeaux, France
| | | | - Yeriel D Estrada
- Icahn School of Medicine at Mount Sinai Medical Center, New York, New York, USA
| | - Swaroop N Bose
- Icahn School of Medicine at Mount Sinai Medical Center, New York, New York, USA
| | - Dan Xu
- Pfizer Inc., San Diego, California, USA
| | | | | | | | - Gary Chan
- Pfizer Inc., Groton, Connecticut, USA
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3
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Vine EE, Austin PJ, O'Neil TR, Nasr N, Bertram KM, Cunningham AL, Harman AN. Epithelial dendritic cells vs. Langerhans cells: Implications for mucosal vaccines. Cell Rep 2024; 43:113977. [PMID: 38512869 DOI: 10.1016/j.celrep.2024.113977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 03/23/2024] Open
Abstract
Next-generation vaccines may be delivered via the skin and mucosa. The stratified squamous epithelium (SSE) represents the outermost layer of the skin (epidermis) and type II mucosa (epithelium). Langerhans cells (LCs) have been considered the sole antigen-presenting cells (APCs) to inhabit the SSE; however, it is now clear that dendritic cells (DCs) are also present. Importantly, there are functional differences in how LCs and DCs take up and process pathogens as well as their ability to activate and polarize T cells, though whether DCs participate in neuroimmune interactions like LCs is yet to be elucidated. A correct definition and functional characterization of APCs in the skin and anogenital tissues are of utmost importance for the design of better vaccines and blocking pathogen transmission. Here, we provide a historical perspective on the evolution of our understanding of the APCs that inhabit the SSE, including a detailed review of the most recent literature.
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Affiliation(s)
- Erica Elizabeth Vine
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; Westmead Clinic School, Faculty of Medicine and Health, The University of Sydney, Westmead, NSW 2145, Australia
| | - Paul Jonathon Austin
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia; Brain and Mind Centre, University of Sydney, Camperdown, NSW 2050, Australia
| | - Thomas Ray O'Neil
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Najla Nasr
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Kirstie Melissa Bertram
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Anthony Lawrence Cunningham
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Andrew Nicholas Harman
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia.
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4
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Traks T, Reemann P, Eskla KL, Ottas A, Jagomäe T, Liira R, Ilves L, Jaks V, Raam L, Abram K, Kingo K. High-throughput proteomic analysis of chronic inflammatory skin diseases: Psoriasis and atopic dermatitis. Exp Dermatol 2024; 33:e15079. [PMID: 38654506 DOI: 10.1111/exd.15079] [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: 08/14/2023] [Revised: 03/13/2024] [Accepted: 04/03/2024] [Indexed: 04/26/2024]
Abstract
Common characteristics in the pathogenesis of psoriasis (PS) and atopic dermatitis (AD) have been presumed, but only a few studies have clearly supported this. The current aim was to find possible similarities and differences in protein expression patterns between these two major chronic inflammatory skin diseases. High-throughput tandem mass spectrometry proteomic analysis was performed using full thickness skin samples from adult PS patients, AD patients and healthy subjects. We detected a combined total of 3045 proteins in the three study groups. According to principal component analysis, there was significant overlap between the proteomic profiles of PS and AD, and both clearly differed from that of healthy skin. The following validation of selected proteins with western blot analysis showed similar tendencies in expression levels and produced statistically significant results. The expression of periostin (POSTN) was consistently high in AD and very low or undetectable in PS (5% FDR corrected p < 0.001), suggesting POSTN as a potential biomarker to distinguish these diseases. Immunohistochemistry further confirmed higher POSTN expression in AD compared to PS skin. Overall, our findings support the concept that these two chronic skin diseases might share considerably more common mechanisms in pathogenesis than has been suspected thus far.
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Affiliation(s)
- Tanel Traks
- Department of Dermatology and Venereology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
- Clinical Research Centre, Tartu University Hospital, University of Tartu, Tartu, Estonia
| | - Paula Reemann
- Department of Dermatology and Venereology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
| | - Kattri-Liis Eskla
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Aigar Ottas
- Clinical Research Centre, Tartu University Hospital, University of Tartu, Tartu, Estonia
- Estonian Genome Centre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Toomas Jagomäe
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Rasmus Liira
- Institute of Physics, University of Tartu, Tartu, Estonia
| | - Liis Ilves
- Department of Dermatology and Venereology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
- Dermatology Clinic, Tartu University Hospital, Tartu, Estonia
| | - Viljar Jaks
- Dermatology Clinic, Tartu University Hospital, Tartu, Estonia
- Department of Cell Biology, Institute of Molecular and Cell Biology, University of Tartu, Tartu, Estonia
| | - Liisi Raam
- Department of Dermatology and Venereology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
- Dermatology Clinic, Tartu University Hospital, Tartu, Estonia
| | - Kristi Abram
- Department of Dermatology and Venereology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
- Dermatology Clinic, Tartu University Hospital, Tartu, Estonia
| | - Külli Kingo
- Department of Dermatology and Venereology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
- Dermatology Clinic, Tartu University Hospital, Tartu, Estonia
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Afshari M, Kolackova M, Rosecka M, Čelakovská J, Krejsek J. Unraveling the skin; a comprehensive review of atopic dermatitis, current understanding, and approaches. Front Immunol 2024; 15:1361005. [PMID: 38500882 PMCID: PMC10944924 DOI: 10.3389/fimmu.2024.1361005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 02/14/2024] [Indexed: 03/20/2024] Open
Abstract
Atopic dermatitis, also known as atopic eczema, is a chronic inflammatory skin disease characterized by red pruritic skin lesions, xerosis, ichthyosis, and skin pain. Among the social impacts of atopic dermatitis are difficulties and detachment in relationships and social stigmatization. Additionally, atopic dermatitis is known to cause sleep disturbance, anxiety, hyperactivity, and depression. Although the pathological process behind atopic dermatitis is not fully known, it appears to be a combination of epidermal barrier dysfunction and immune dysregulation. Skin is the largest organ of the human body which acts as a mechanical barrier to toxins and UV light and a natural barrier against water loss. Both functions face significant challenges due to atopic dermatitis. The list of factors that can potentially trigger or contribute to atopic dermatitis is extensive, ranging from genetic factors, family history, dietary choices, immune triggers, and environmental factors. Consequently, prevention, early clinical diagnosis, and effective treatment may be the only resolutions to combat this burdensome disease. Ensuring safe and targeted drug delivery to the skin layers, without reaching the systemic circulation is a promising option raised by nano-delivery systems in dermatology. In this review, we explored the current understanding and approaches of atopic dermatitis and outlined a range of the most recent therapeutics and dosage forms brought by nanotechnology. This review was conducted using PubMed, Google Scholar, and ScienceDirect databases.
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Affiliation(s)
- Moeina Afshari
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czechia
| | - Martina Kolackova
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czechia
| | - Michaela Rosecka
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czechia
| | - Jarmila Čelakovská
- Department of Dermatology and Venereology, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czechia
| | - Jan Krejsek
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czechia
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Miyagawa F, Ozato K, Tagaya Y, Asada H. Type I IFN Derived from Ly6C hi Monocytes Suppresses Type 2 Inflammation in a Murine Model of Atopic Dermatitis. J Invest Dermatol 2024; 144:520-530.e2. [PMID: 37739337 DOI: 10.1016/j.jid.2023.08.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 08/26/2023] [Accepted: 08/31/2023] [Indexed: 09/24/2023]
Abstract
The roles of innate immune cells, including eosinophils, basophils, and group 2 innate lymphoid cells, in atopic dermatitis (AD) have been well-documented, whereas that of monocytes, another component of the innate immunity, remains rather poorly understood, thus necessitating the topic of this study. In addition, cytokines and cellular pathways needed for the resolution of type 2 inflammation in AD need further investigation. Using a murine AD model, we report here that (i) Ly6Chi monocytes were rapidly recruited to the AD lesion in a CCR2-dependent manner, blockade of which exacerbated AD; (ii) type I IFN production is profoundly involved in this suppression because the blockade of it by genetic depletion or antibody neutralization exacerbated AD; and (iii) Ly6Chi monocytes operate through the production of type I IFN because Ly6Chi monocytes from Irf7-null mice, which lack type I IFN production, failed to rescue Ccr2-/- mice from severe AD upon adoptive transfer. In addition, in vitro studies demonstrated type I IFN suppressed basophil expansion from bone marrow progenitor cells and survival of mature basophils. Collectively, our work suggests that Ly6Chi monocytes are the first and dominant inflammatory cells reaching AD lesions that negatively regulate type 2 inflammation through the production of type I IFN.
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Affiliation(s)
- Fumi Miyagawa
- Department of Dermatology, Nara Medical University School of Medicine, Nara, Japan.
| | - Keiko Ozato
- Laboratory of Molecular Growth Regulation, Eunice Kennedy Shriver National Institutes of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | - Yutaka Tagaya
- Cell Biology Lab, Division of Virology, Pathogenesis and Cancer, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Hideo Asada
- Department of Dermatology, Nara Medical University School of Medicine, Nara, Japan
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7
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Kim JE, Lee J, Huh YJ, Kim K, Chaparala V, Krueger JG, Kim J. Genomic Profiling of the Overlap Phenotype between Psoriasis and Atopic Dermatitis. J Invest Dermatol 2024; 144:43-52.e6. [PMID: 37419444 PMCID: PMC11060321 DOI: 10.1016/j.jid.2023.06.194] [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: 03/03/2023] [Revised: 06/01/2023] [Accepted: 06/20/2023] [Indexed: 07/09/2023]
Abstract
Clinical overlaps between psoriasis and atopic dermatitis (AD) are sometimes undiscernible, and there is no consensus on whether to treat the overlap phenotype as psoriasis or AD. We enrolled 41 patients diagnosed with either psoriasis or AD and clinically re-stratified them into classic psoriasis (n = 11), classic AD (n = 13), and the overlap phenotype between psoriasis and AD (n = 17). We compared the gene expression profiles of lesional and nonlesional skin biopsy tissues and the proteomic profiles of blood samples among the three comparison groups. Global mRNA expression and T-cell subset cytokine expression in the skin and protein biomarker elevation in the blood of the overlap phenotype were consistent with the profiles of psoriasis and different from the profiles of AD. Unsupervised k-means clustering indicated that the best number of distinct clusters for the total population of the three comparison groups was two, and the two clusters of psoriasis and AD were differentiated by gene expression. Our study suggests that the clinical overlap phenotype between psoriasis and AD has dominant molecular features of psoriasis, and genomic biomarkers can differentiate psoriasis and AD at molecular levels in patients with a spectrum of psoriasis and AD.
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Affiliation(s)
- Jeong Eun Kim
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Republic of Korea; Bio-Bigdata Research Center, Hanyang Insitute of Bioscience and Biotechnology, Hanyang University, Seoul, Republic of Korea
| | - Jongmi Lee
- Dermatology Section, Veterans Affairs Northern California Health Care System, Mather, California, USA
| | - Yun Jung Huh
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Katherine Kim
- Dermatology Section, Veterans Affairs Northern California Health Care System, Mather, California, USA
| | - Vasuma Chaparala
- Dermatology Section, Veterans Affairs Northern California Health Care System, Mather, California, USA
| | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | - Jaehwan Kim
- Dermatology Section, Veterans Affairs Northern California Health Care System, Mather, California, USA; Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA; Department of Dermatology, University of California Davis, Sacramento, California, USA.
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8
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Del Duca E, He H, Liu Y, Pagan AD, David E, Cheng J, Carroll B, Renert-Yuval Y, Bar J, Estrada YD, Maari C, Proulx ESC, Krueger JG, Bissonnette R, Guttman-Yassky E. Intrapatient comparison of atopic dermatitis skin transcriptome shows differences between tape-strips and biopsies. Allergy 2024; 79:80-92. [PMID: 37577841 DOI: 10.1111/all.15845] [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: 03/20/2023] [Revised: 05/26/2023] [Accepted: 06/24/2023] [Indexed: 08/15/2023]
Abstract
BACKGROUND Our knowledge of etiopathogenesis of atopic dermatitis (AD) is largely derived from skin biopsies, which are associated with pain, scarring and infection. In contrast, tape-stripping is a minimally invasive, nonscarring technique to collect skin samples. METHODS To construct a global AD skin transcriptomic profile comparing tape-strips to whole-skin biopsies, we performed RNA-seq on tape-strips and biopsies taken from the lesional skin of 20 moderate-to-severe AD patients and the skin of 20 controls. Differentially expressed genes (DEGs) were defined by fold-change (FCH) ≥2.0 and false discovery rate <0.05. RESULTS We detected 4104 (2513 Up; 1591 Down) and 1273 (546 Up; 727 Down) DEGs in AD versus controls, in tape-strips and biopsies, respectively. Although both techniques captured dysregulation of key immune genes, tape-strips showed higher FCHs for innate immunity (IL-1B, IL-8), dendritic cell (ITGAX/CD11C, FCER1A), Th2 (IL-13, CCL17, TNFRSF4/OX40), and Th17 (CCL20, CXCL1) products, while biopsies showed higher upregulation of Th22 associated genes (IL-22, S100As) and dermal cytokines (IFN-γ, CCL26). Itch-related genes (IL-31, TRPV3) were preferentially captured by tape-strips. Epidermal barrier abnormalities were detected in both techniques, with terminal differentiation defects (FLG2, PSORS1C2) better represented by tape-strips and epidermal hyperplasia changes (KRT16, MKI67) better detected by biopsies. CONCLUSIONS Tape-strips and biopsies capture overlapping but distinct features of the AD molecular signature, suggesting their respective utility for monitoring specific AD-related immune, itch, and barrier abnormalities in clinical trials and longitudinal studies.
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Affiliation(s)
- Ester Del Duca
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Department of Dermatology, University of Magna Graecia, Catanzaro, Italy
| | - Helen He
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Ying Liu
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Angel D Pagan
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Eden David
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Julia Cheng
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Britta Carroll
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Yael Renert-Yuval
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Laboratory for Investigative Dermatology, The Rockefeller University, New York City, New York, USA
| | - Jonathan Bar
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Yeriel D Estrada
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | | | | | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York City, New York, USA
| | | | - Emma Guttman-Yassky
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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9
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Schülke S, Gilles S, Jirmo AC, Mayer JU. Tissue-specific antigen-presenting cells contribute to distinct phenotypes of allergy. Eur J Immunol 2023; 53:e2249980. [PMID: 36938688 DOI: 10.1002/eji.202249980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 01/19/2023] [Accepted: 03/13/2023] [Indexed: 03/21/2023]
Abstract
Antigen-presenting cells (APCs) are critical cells bridging innate and adaptive immune responses by taking up, processing, and presenting antigens to naïve T cells. At steady state, APCs thus control both tissue homeostasis and the induction of tolerance. In allergies however, APCs drive a Th2-biased immune response that is directed against otherwise harmless antigens from the environment. The main types of APCs involved in the induction of allergy are dendritic cells, monocytes, and macrophages. However, these cell types can be further divided into local, tissue-specific populations that differ in their phenotype, migratory capacity, T-cell activating potential, and production of effector molecules. Understanding if distinct populations of APCs contribute to either tissue-specific immune tolerance, allergen sensitization, or allergic inflammation will allow us to better understand disease pathology and develop targeted treatment options for different stages of allergic disease. Therefore, this review describes the main characteristics, phenotypes, and effector molecules of the APCs involved in the induction of allergen-specific Th2 responses in affected barrier sites, such as the skin, nose, lung, and gastrointestinal tract. Furthermore, we highlight open questions that remain to be addressed to fully understand the contribution of different APCs to allergic disease.
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Affiliation(s)
- Stefan Schülke
- Vice President´s Research Group: Molecular Allergology, Paul-Ehrlich-Institut, Langen (Hesse), Germany
| | - Stefanie Gilles
- Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Adan C Jirmo
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Johannes U Mayer
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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Dinish US, Yew YW, Vinod Ram K, Bi R, Attia ABE, Teo Xinhui V, Rajarahm P, Oon HH, Thng STG, Olivo M. Non-invasive biochemical analysis and comparison of atopic dermatitis and psoriasis skin using handheld confocal Raman spectroscopy. JOURNAL OF BIOPHOTONICS 2023; 16:e202300191. [PMID: 37560963 DOI: 10.1002/jbio.202300191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/11/2023]
Abstract
A handheld non-invasive confocal Raman system (CRS) was used to evaluate the differences in skin biochemicals between atopic dermatitis (AD) and psoriasis, which are inflammatory skin conditions. Raman spectral measurements in the fingerprint and high wavenumber region were acquired using a portable in-house CRS system with excitation lasers operating at 671 and 785 nm. It was deduced that relative amount of water decreases in the following sequence of skin: healthy, psoriasis and AD. Moreover, differential trends were observed for the subclasses of ceramides such that ceramide 3 is lower in the lesional AD and psoriasis skin as compared to healthy, while ceramide 2 showed a contrasting trend of decrease in lesional AD and increase in lesional psoriasis as opposed to healthy skin. Amount of cholesterol was significantly higher in lesional psoriasis as compared to lesional AD and healthy skin. These differences can aid in an objective classification of the skin conditions and in the formulation of new disease-specific topical treatments.
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Affiliation(s)
- U S Dinish
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Yik Weng Yew
- National Skin Centre, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Keertana Vinod Ram
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Renzhe Bi
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Amalina Binte Ebrahim Attia
- Biomedical Research Council (BMRC), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Valerie Teo Xinhui
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Poongkulali Rajarahm
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Hazel Hweeboon Oon
- National Skin Centre and Skin Research Institute of Singapore (SRIS), Singapore, Singapore
| | | | - Malini Olivo
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
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11
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Manome-Zenke Y, Denda-Nagai K, Murakami R, Noji M, Tsuneda N, Ishii-Schrade KB, Kanomata N, Arai S, Irimura T, Ikeda S. Possible Involvement of Antigen-Presenting Cells Expressing the Macrophage Galactose-Type C-Type Lectin in Inflammatory Skin Diseases. J Invest Dermatol 2023; 143:1834-1838.e10. [PMID: 36963610 DOI: 10.1016/j.jid.2023.03.1654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 03/26/2023]
Affiliation(s)
- Yukari Manome-Zenke
- Department of Dermatology, St. Luke's International Hospital, Tokyo, Japan; Department of Dermatology and Allergology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kaori Denda-Nagai
- Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan.
| | - Ryuichi Murakami
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Miki Noji
- Division of Glycobiologics, JARIHES, Juntendo University, Tokyo, Japan
| | - Naoto Tsuneda
- Department of Pathology, St. Luke's International Hospital, Tokyo, Japan
| | | | - Naoki Kanomata
- Department of Pathology, St. Luke's International Hospital, Tokyo, Japan
| | - Satoru Arai
- Department of Dermatology, St. Luke's International Hospital, Tokyo, Japan
| | - Tatsuro Irimura
- Division of Glycobiologics, JARIHES, Juntendo University, Tokyo, Japan
| | - Shigaku Ikeda
- Department of Dermatology and Allergology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
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12
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Koch M, Kockmann T, Rodriguez E, Wehkamp U, Hiebert P, Ben-Yehuda Greenwald M, Stölzl D, Beer HD, Tschachler E, Weidinger S, Werner S, Auf dem Keller U. Quantitative Proteomics Identifies Reduced NRF2 Activity and Mitochondrial Dysfunction in Atopic Dermatitis. J Invest Dermatol 2023; 143:220-231.e7. [PMID: 36108803 DOI: 10.1016/j.jid.2022.08.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 08/04/2022] [Accepted: 08/25/2022] [Indexed: 01/25/2023]
Abstract
Atopic dermatitis is the most common inflammatory skin disease and is characterized by a deficient epidermal barrier and cutaneous inflammation. Genetic studies suggest a key role of keratinocytes in atopic dermatitis pathogenesis, but the alterations in the proteome that occur in the full epidermis have not been defined. Using a pressure-cycling technology and data-independent acquisition approach, we performed quantitative proteomics of epidermis from healthy volunteers and lesional and nonlesional patient skin. Results were validated by targeted proteomics using parallel reaction monitoring mass spectrometry and immunofluorescence staining. Proteins that were differentially abundant in the epidermis of patients with atopic dermatitis versus in healthy control reflect the strong inflammation in lesional skin and the defect in keratinocyte differentiation and epidermal stratification that already characterizes nonlesional skin. Most importantly, they reveal impaired activation of the NRF2-antioxidant pathway and reduced abundance of mitochondrial proteins involved in key metabolic pathways in the affected epidermis. Analysis of primary human keratinocytes with small interfering RNA‒mediated NRF2 knockdown revealed that the impaired NRF2 activation and mitochondrial abnormalities are partially interlinked. These results provide insight into the molecular alterations in the epidermis of patients with atopic dermatitis and identify potential targets for pharmaceutical intervention.
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Affiliation(s)
- Michael Koch
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - Tobias Kockmann
- Functional Genomics Center Zurich, University of Zurich/ETH Zürich, Zürich, Switzerland
| | - Elke Rodriguez
- Department of Dermatology, Allergology and Venereology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Ulrike Wehkamp
- Department of Dermatology, Allergology and Venereology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Paul Hiebert
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
| | | | - Dora Stölzl
- Department of Dermatology, Allergology and Venereology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Hans-Dietmar Beer
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Erwin Tschachler
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Stephan Weidinger
- Department of Dermatology, Allergology and Venereology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Sabine Werner
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - Ulrich Auf dem Keller
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark.
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13
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Politi FAS, Carvalho SG, Rodero CF, Dos Santos KP, Meneguin AB, Sorrechia R, Chiavacci LA, Chorilli M. Piperine-loaded nanoparticles incorporated into hyaluronic acid/sodium alginate-based membranes for the treatment of inflammatory skin diseases. Int J Biol Macromol 2023; 227:736-748. [PMID: 36549615 DOI: 10.1016/j.ijbiomac.2022.12.147] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/08/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Piperine is an alkaloid mostly found in the fruits of several species of the Piper genus, and its anti-inflammatory potential is already known. However, its therapeutic applications still need to be better explored due to the low aqueous solubility of this active. To overcome this drawback, the objective of this work was to evaluate the efficiency of the nanoencapsulation of the compound as well as its incorporation into hyaluronic acid/alginate-based biomembranes. Polymeric nanoparticles composed of Eudragit S100 and Poloxamer 188 were obtained by the nanoprecipitation technique, obtaining spherical nanosized particles with an average diameter of 122.1 ± 2.0 nm, polydispersity index of 0.266, and encapsulation efficiency of 76.2 %. Hyaluronic acid/sodium alginate membranes were then prepared and characterized. Regarding permeation, a slow passage rate was observed until the initial 14 h, when an exponential increase in the recovered drug concentration began to occur. The in vivo assay showed a reduction in inflammation up to 43.6 %, and no cytotoxicity was observed. The results suggested the potential of the system developed for the treatment of inflammatory skin diseases.
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Affiliation(s)
- Flávio Augusto Sanches Politi
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil
| | - Suzana Gonçalves Carvalho
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil.
| | - Camila Fernanda Rodero
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil
| | - Kaio Pini Dos Santos
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil
| | - Andréia Bagliotti Meneguin
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil.
| | - Rodrigo Sorrechia
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil.
| | - Leila Aparecida Chiavacci
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, SP, Brazil.
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14
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Oral Janus kinase inhibitors for atopic dermatitis. Ann Allergy Asthma Immunol 2023; 130:577-592. [PMID: 36736457 DOI: 10.1016/j.anai.2023.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 02/04/2023]
Abstract
Atopic dermatitis (AD) is one of the most common inflammatory skin conditions. The pathogenesis of AD involves skin barrier disruption and immune activation of T-helper (TH)2 and TH22 and varying degrees of TH1 and TH17 activation in various patient subtypes. Although AD is mainly driven by TH2, the molecular and clinical heterogeneity of AD underscores the need for more efficacious treatments that target multiple immune axes. Janus kinase (JAK) inhibitors are novel therapeutics that broadly block many AD-related proinflammatory cytokines (interleukin [IL]-4, IL-5, IL-13, IL-31, thymic stromal lymphopoietin, interferon gamma, IL-12, IL-23, IL-17) across different immune pathways. Oral JAK inhibitors have been found to be efficacious in AD, with 2 (abrocitinib and upadacitinib) recently gaining US Food and Drug Administration approval and several others under investigation in clinical trials with promising results. These systemic agents have surpassed conventional thresholds of treatment response, with many patients achieving complete or almost complete skin clearance, and provide a fast-acting alternative therapy for patients who are not responsive to biologics or other conventional therapies. However, systemic JAK inhibitors come with health concerns, requiring additional long-term clinical trials to characterize their safety profile in patients with AD. This review summarizes the current literature on the safety and efficacy of oral JAK inhibitors in AD and discusses future directions for research.
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15
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Riaz B, Islam SMS, Ryu HM, Sohn S. CD83 Regulates the Immune Responses in Inflammatory Disorders. Int J Mol Sci 2023; 24:ijms24032831. [PMID: 36769151 PMCID: PMC9917562 DOI: 10.3390/ijms24032831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Activating the immune system plays an important role in maintaining physiological homeostasis and defending the body against harmful infections. However, abnormalities in the immune response can lead to various immunopathological responses and severe inflammation. The activation of dendritic cells (DCs) can influence immunological responses by promoting the differentiation of T cells into various functional subtypes crucial for the eradication of pathogens. CD83 is a molecule known to be expressed on mature DCs, activated B cells, and T cells. Two isotypes of CD83, a membrane-bound form and a soluble form, are subjects of extensive scientific research. It has been suggested that CD83 is not only a ubiquitous co-stimulatory molecule but also a crucial player in monitoring and resolving inflammatory reactions. Although CD83 has been involved in immunological responses, its functions in autoimmune diseases and effects on pathogen immune evasion remain unclear. Herein, we outline current immunological findings and the proposed function of CD83 in inflammatory disorders.
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Affiliation(s)
- Bushra Riaz
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - S. M. Shamsul Islam
- Department of Microbiology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Hye Myung Ryu
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Seonghyang Sohn
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Microbiology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Correspondence:
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16
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Gao Y, Wang Z, Cui Y, Xu M, Weng L. Emerging Strategies of Engineering and Tracking Dendritic Cells for Cancer Immunotherapy. ACS APPLIED BIO MATERIALS 2023; 6:24-43. [PMID: 36520013 DOI: 10.1021/acsabm.2c00790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Dendritic cells (DCs), a kind of specialized immune cells, play key roles in antitumor immune response and promotion of innate and adaptive immune responses. Recently, many strategies have been developed to utilize DCs in cancer therapy, such as delivering antigens and adjuvants to DCs and using scaffold to recruit and activate DCs. Here we outline how different DC subsets influence antitumor immunity, summarize the FDA-approved vaccines and cancer vaccines under clinical trials, discuss the strategies for engineering DCs and noninvasive tracking of DCs to improve antitumor immunotherapy, and reveal the potential of artificial neural networks for the design of DC based vaccines.
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Affiliation(s)
- Yu Gao
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Zhixuan Wang
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Ying Cui
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Miaomiao Xu
- School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Lixing Weng
- State Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.,School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
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17
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Monnot GC, Wegrecki M, Cheng TY, Chen YL, Sallee BN, Chakravarthy R, Karantza IM, Tin SY, Khaleel AE, Monga I, Uwakwe LN, Tillman A, Cheng B, Youssef S, Ng SW, Shahine A, Garcia-Vilas JA, Uhlemann AC, Bordone LA, Han A, Rohde CH, Ogg G, Moody DB, Rossjohn J, de Jong A. Staphylococcal phosphatidylglycerol antigens activate human T cells via CD1a. Nat Immunol 2023; 24:110-122. [PMID: 36550321 PMCID: PMC10389259 DOI: 10.1038/s41590-022-01375-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 10/31/2022] [Indexed: 12/24/2022]
Abstract
Expressed on epidermal Langerhans cells, CD1a presents a range of self-lipid antigens found within the skin; however, the extent to which CD1a presents microbial ligands from bacteria colonizing the skin is unclear. Here we identified CD1a-dependent T cell responses to phosphatidylglycerol (PG), a ubiquitous bacterial membrane phospholipid, as well as to lysylPG, a modified PG, present in several Gram-positive bacteria and highly abundant in Staphylococcus aureus. The crystal structure of the CD1a-PG complex showed that the acyl chains were buried within the A'- and F'-pockets of CD1a, while the phosphoglycerol headgroup remained solvent exposed in the F'-portal and was available for T cell receptor contact. Using lysylPG and PG-loaded CD1a tetramers, we identified T cells in peripheral blood and in skin that respond to these lipids in a dose-dependent manner. Tetramer+CD4+ T cell lines secreted type 2 helper T cell cytokines in response to phosphatidylglycerols as well as to co-cultures of CD1a+ dendritic cells and Staphylococcus bacteria. The expansion in patients with atopic dermatitis of CD4+ CD1a-(lysyl)PG tetramer+ T cells suggests a response to lipids made by bacteria associated with atopic dermatitis and provides a link supporting involvement of PG-based lipid-activated T cells in atopic dermatitis pathogenesis.
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Affiliation(s)
- Gwennaëlle C Monnot
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Marcin Wegrecki
- Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Tan-Yun Cheng
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yi-Ling Chen
- Medical Research Council Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Brigitte N Sallee
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Reka Chakravarthy
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Ioanna Maria Karantza
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Shin Yi Tin
- Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Alexandra E Khaleel
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Isha Monga
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Laura N Uwakwe
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Alice Tillman
- Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Microbiome and Pathogen Genomics Core, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Bin Cheng
- Department of Biostatistics, Columbia University Irving Medical Center, New York, NY, USA
| | - Soundos Youssef
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Soo Weei Ng
- Medical Research Council Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Adam Shahine
- Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Javier A Garcia-Vilas
- Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Anne-Catrin Uhlemann
- Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Microbiome and Pathogen Genomics Core, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Lindsey A Bordone
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA
| | - Arnold Han
- Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Christine H Rohde
- Department of Surgery, Columbia University Irving Medical Center, New York, NY, USA
| | - Graham Ogg
- Medical Research Council Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - D Branch Moody
- Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jamie Rossjohn
- Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Annemieke de Jong
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA.
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18
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Segura E. Human dendritic cell subsets: An updated view of their ontogeny and functional specialization. Eur J Immunol 2022; 52:1759-1767. [PMID: 35187651 PMCID: PMC9790408 DOI: 10.1002/eji.202149632] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/13/2022] [Accepted: 02/03/2022] [Indexed: 12/30/2022]
Abstract
Human DCs have been divided into several subsets based on their phenotype and ontogeny. Recent high throughput single-cell methods have revealed additional heterogeneity within human DC subsets, and new subpopulations have been proposed. In this review, we provide an updated view of the human DC subsets and of their ontogeny supported by recent clinical studies . We also summarize their main characteristics including their functional specialization.
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19
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Inflammation Causes Exacerbation of COVID-19: How about Skin Inflammation? Int J Mol Sci 2022; 23:ijms232012260. [PMID: 36293117 PMCID: PMC9603600 DOI: 10.3390/ijms232012260] [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: 08/05/2022] [Revised: 09/10/2022] [Accepted: 09/27/2022] [Indexed: 01/24/2023] Open
Abstract
COVID-19 is a recently emerged viral infection worldwide. SARS-CoV-2, the causative virus, is believed to have emerged from bat coronaviruses, probably through host conversion. The bat coronavirus which has the highest gene homology to SARS-CoV-2 specifically infects deep forest bats in China whose habitat extends through the Middle East to Southern Europe. Host conversion might have occurred due to the deforestation by humans exposing wild bats to the environment they had never encountered before. SARS-CoV-2 infects cells through two mechanisms: through its receptor ACE2 with the help of enzyme TMPRSS and through membrane fusion with the help of elastases in the inflammatory condition. Obesity, hypertension, diabetes mellitus, and pulmonary diseases cause poor prognosis of COVID-19. Aging is another factor promoting poor prognosis. These diseases and aging cause low-level and persistent inflammation in humans, which can promote poor prognosis of COVID-19. Psoriasis and atopic dermatitis are the major inflammatory skin diseases. These inflammatory skin conditions, however, do not seem to cause poor prognosis for COVID-19 based on the epidemiological data accumulated so far. These mechanisms need to be elucidated.
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20
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Expression of Thymic Stromal Lymphopoietin in Immune-Related Dermatoses. Mediators Inflamm 2022; 2022:9242383. [PMID: 36046760 PMCID: PMC9420647 DOI: 10.1155/2022/9242383] [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: 02/18/2022] [Revised: 07/27/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022] Open
Abstract
Thymic stromal lymphopoietin (TSLP), long known to be involved in Th2 response, is also implicated in multiple inflammatory dermatoses and cancers. The purpose of this study was to improve our understanding of the expression of TSLP in the skin of those dermatoses. Lesional specimens of representative immune-related dermatoses, including lichen planus (LP), discoid lupus erythematosus (DLE), eczema, bullous pemphigoid (BP), psoriasis vulgaris (PsV), sarcoidosis, and mycosis fungoides (MF), were retrospectively collected and analyzed by immunohistochemistry. Morphologically, TSLP was extensively expressed in the epidermis of each dermatosis, but the expression was weak in specimens of DLE. In a semiquantitative analysis, TSLP was significantly expressed in the epidermis in LP, BP, eczema, PsV, sarcoidosis, and MF. TSLP expression was higher in the stratum spinosum in LP, eczema, BP, PsV, and MF and higher in the stratum basale in sarcoidosis and PsV. Moreover, we found positive TSLP staining in the dermal infiltrating inflammatory cells of BP, PsV, and sarcoidosis. Our observation of TSLP in different inflammatory dermatoses might provide a novel understanding of TSLP in the mechanism of diseases with distinctly different immune response patterns and suggest a potential novel therapeutic target of those diseases.
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21
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Leyva-Castillo JM, Sun L, Wu SY, Rockowitz S, Sliz P, Geha R. Single-cell transcriptome profile of mouse skin undergoing antigen-driven allergic inflammation recapitulates findings in atopic dermatitis skin lesions. J Allergy Clin Immunol 2022; 150:373-384. [PMID: 35300986 PMCID: PMC9378429 DOI: 10.1016/j.jaci.2022.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 02/05/2022] [Accepted: 03/03/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Allergic skin inflammation elicited in mice by epicutaneous (EC) sensitization with antigen shares characteristics with human atopic dermatitis (AD). OBJECTIVE We characterized gene expression by single cells in mouse skin undergoing antigen-driven allergic inflammation and compared the results with findings in AD skin lesions. METHODS Mice were EC sensitized by application of ovalbumin (OVA) or saline to tape-stripped skin. Single-cell RNA sequencing was performed on skin cells 12 days later. Flow cytometry analysis was performed to validate results. RESULTS Sequencing identified 7 nonhematopoietic and 6 hematopoietic cell subsets in EC-sensitized mouse skin. OVA sensitization resulted in the expansion in the skin of T cells, dendritic cells, macrophages, mast cells/basophils, fibroblasts, and myocytes cell clusters, and in upregulation of TH2 cytokine gene expression in CD4+ T cells and mast cells/basophils. Genes differentially expressed in OVA-sensitized skin included genes important for inflammation in dendritic cells and macrophages, collagen deposition, and leukocyte migration in fibroblasts, chemotaxis in endothelial cells and skin barrier integrity, and differentiation in KCs-findings that recapitulate those in AD skin lesions. Unexpectedly, mast cells/basophils, rather than T cells, were the major source of Il4 and ll13 in OVA-sensitized mouse skin. In addition, our results suggest novel pathways in fibroblast and endothelial cells that may contribute to allergic skin inflammation. CONCLUSION The gene expression profile of single cells in mouse skin undergoing antigen-driven shares many features with that in AD skin lesions and unveils novel pathways that may be involved in allergic skin inflammation.
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Affiliation(s)
- Juan Manuel Leyva-Castillo
- Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, MA.,Corresponding authors: Juan-Manuel Leyva-Castillo, PhD. Boston Children’s Hospital, Division of Immunology, One Blackfan Circle, Boston, Massachusetts 02115, USA. Phone: 617-919-2465, Fax: 617-730-0528, Raif S. Geha, MD. Boston Children’s Hospital, Division of Immunology, One Blackfan Circle, Boston, Massachusetts 02115, USA. Phone: 617-919-2482, Fax: 617-730-0528,
| | - Liang Sun
- The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Boston, USA
| | - Shih-Ying Wu
- The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Boston, USA
| | - Shira Rockowitz
- The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Boston, USA
| | - Piotr Sliz
- The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Boston, USA.,Division of Molecular Medicine, Boston Children’s Hospital, Boston, USA
| | - Raif Geha
- Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, MA.,Corresponding authors: Juan-Manuel Leyva-Castillo, PhD. Boston Children’s Hospital, Division of Immunology, One Blackfan Circle, Boston, Massachusetts 02115, USA. Phone: 617-919-2465, Fax: 617-730-0528, Raif S. Geha, MD. Boston Children’s Hospital, Division of Immunology, One Blackfan Circle, Boston, Massachusetts 02115, USA. Phone: 617-919-2482, Fax: 617-730-0528,
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22
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Prosty C, Gabrielli S, Ben-Shoshan M, Le M, Giménez-Arnau AM, Litvinov IV, Lefrançois P, Netchiporouk E. In silico Identification of Immune Cell-Types and Pathways Involved in Chronic Spontaneous Urticaria. Front Med (Lausanne) 2022; 9:926753. [PMID: 35872776 PMCID: PMC9302568 DOI: 10.3389/fmed.2022.926753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 06/13/2022] [Indexed: 12/20/2022] Open
Abstract
Background The immunopathogenesis of chronic spontaneous urticaria (CSU) is poorly understood, but recent research suggests that patients can be divided into autoallergic and autoimmune subtypes. Given that not all patients can be controlled with current treatment regimens, including anti-IgE monoclonal antibodies, a better understanding of the immune pathways involved in CSU may enable the repurposing of monoclonal antibodies used for other dermatologic diseases (e.g., Th2 and Th17 inhibitors). Therefore, we investigated the implicated immune cells and pathways by reanalyzing publicly available transcriptomic data. Methods Microarray data of CSU and healthy control (HC) skin and blood were obtained from the Gene Expression Omnibus (GSE72542, GSE57178). Differentially expressed genes were defined as a false discovery rate <0.05 and a |log2 fold change| ≥1. Pathway analyses were conducted using ToppGene and KEGG. Cell-type enrichment was determined by CIBERSORT and xCell and was correlated with clinical characteristics. Results Th2 (IL-4/13 signaling) and Th17-related (IL-17/23 signaling) pathways were upregulated in lesional compared to non-lesional and HC samples. In non-lesional versus lesional samples, CIBERSORT analysis revealed increased regulatory T-cells (Treg) and resting mast cells. xCell analysis established that Th1 and Th2 scores were not significantly different between lesional and HC samples. However, Th2 scores in both lesional and non-lesional samples correlated positively with disease severity. Few differentially expressed genes and pathways were identified between CSU and HC blood samples. Conclusion Our results support the involvement of Th2 and Th17-related genes and pathways in CSU. Th2 scores associate with disease severity, which indicates the clinical relevance of these findings. Increased resting mast cell and Treg scores in non-lesional samples may suggest local suppression of wheal formation. Moreover, disease activity seemed to be restricted to the skin as there were limited findings from blood. Larger studies using next-generation sequencing will be helpful to confirm these results.
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Affiliation(s)
- Connor Prosty
- Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Sofianne Gabrielli
- Division of Allergy, Immunology and Dermatology, Montreal Children's Hospital, Montreal, QC, Canada
| | - Moshe Ben-Shoshan
- Division of Allergy, Immunology and Dermatology, Montreal Children's Hospital, Montreal, QC, Canada
| | - Michelle Le
- Division of Dermatology, McGill University, Montreal, QC, Canada
| | - Ana M Giménez-Arnau
- Department of Dermatology, Hospital del Mar, Institut Mar d'Investigacions Mediques (IMIM), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Ivan V Litvinov
- Division of Dermatology, McGill University, Montreal, QC, Canada.,Division of Dermatology, University of Ottawa, Ottawa, ON, Canada
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Kamata M, Tada Y. Dendritic Cells and Macrophages in the Pathogenesis of Psoriasis. Front Immunol 2022; 13:941071. [PMID: 35837394 PMCID: PMC9274091 DOI: 10.3389/fimmu.2022.941071] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/01/2022] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by scaly indurated erythema. This disease impairs patients’ quality of life enormously. Pathological findings demonstrate proliferation and abnormal differentiation of keratinocytes and massive infiltration of inflammatory immune cells. The pathogenesis of psoriasis is complicated. Among immune cells, dendritic cells play a pivotal role in the development of psoriasis in both the initiation and the maintenance phases. In addition, it has been indicated that macrophages contribute to the pathogenesis of psoriasis especially in the initiation phase, although studies on macrophages are limited. In this article, we review the roles of dendritic cells and macrophages in the pathogenesis of psoriasis.
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Immunological Pathomechanisms of Spongiotic Dermatitis in Skin Lesions of Atopic Dermatitis. Int J Mol Sci 2022; 23:ijms23126682. [PMID: 35743125 PMCID: PMC9223609 DOI: 10.3390/ijms23126682] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 12/18/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic pruritic skin disease with a complex pathogenesis underlying its heterogeneous clinical phenotypes and endotypes. The skin manifestation of AD reflects the cytokine milieu of a type-2-dominant immunity axis induced by genetic predisposition, innate immunity dysregulation, epidermal barrier defects, and allergic inflammation. However, the detailed pathomechanism of eczematous dermatitis, which is the principal characteristic of AD, remains unclear. This review examines previous studies demonstrating research progress in this area and considers the immunological pathomechanism of “spongiotic dermatitis”, which is the histopathological hallmark of eczematous dermatitis. Studies in this field have revealed the importance of IgE-mediated delayed-type hypersensitivity, the Fas/Fas-ligand system, and cell-mediated cytotoxicity in inducing the apoptosis of keratinocytes in spongiotic dermatitis. Recent studies have demonstrated that, together with infiltrating CD4 T cells, IgE-expressing dendritic cells (i.e., inflammatory dendritic epidermal cells and Langerhans cells) that capture specific allergens (i.e., house dust mites) are present in the spongiotic epidermis of lichenified eczema in patients with IgE-allergic AD. These findings suggest that IgE-mediated delayed-type hypersensitivity plays a pivotal role in the pathogenesis of spongiotic dermatitis in the skin lesions of AD.
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25
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Zhou X, Ding S, Wang D, Chen L, Feng K, Huang T, Li Z, Cai Y. Identification of Cell Markers and Their Expression Patterns in Skin Based on Single-Cell RNA-Sequencing Profiles. Life (Basel) 2022; 12:life12040550. [PMID: 35455041 PMCID: PMC9025372 DOI: 10.3390/life12040550] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/27/2022] [Accepted: 04/04/2022] [Indexed: 12/19/2022] Open
Abstract
Atopic dermatitis and psoriasis are members of a family of inflammatory skin disorders. Cellular immune responses in skin tissues contribute to the development of these diseases. However, their underlying immune mechanisms remain to be fully elucidated. We developed a computational pipeline for analyzing the single-cell RNA-sequencing profiles of the Human Cell Atlas skin dataset to investigate the pathological mechanisms of skin diseases. First, we applied the maximum relevance criterion and the Boruta feature selection method to exclude irrelevant gene features from the single-cell gene expression profiles of inflammatory skin disease samples and healthy controls. The retained gene features were ranked by using the Monte Carlo feature selection method on the basis of their importance, and a feature list was compiled. This list was then introduced into the incremental feature selection method that combined the decision tree and random forest algorithms to extract important cell markers and thus build excellent classifiers and decision rules. These cell markers and their expression patterns have been analyzed and validated in recent studies and are potential therapeutic and diagnostic targets for skin diseases because their expression affects the pathogenesis of inflammatory skin diseases.
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Affiliation(s)
- Xianchao Zhou
- School of Life Sciences, Shanghai University, Shanghai 200444, China; (X.Z.); (S.D.)
- Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shijian Ding
- School of Life Sciences, Shanghai University, Shanghai 200444, China; (X.Z.); (S.D.)
| | - Deling Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Department of Medical Imaging, Sun Yat-sen University Cancer Center, Guangzhou 510060, China;
| | - Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China;
| | - Kaiyan Feng
- Department of Computer Science, Guangdong AIB Polytechnic College, Guangzhou 510507, China;
| | - Tao Huang
- Bio-Med Big Data Center, CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
- Correspondence: (T.H.); (Z.L.); (Y.C.); Tel.: +86-21-54923269 (T.H.); +86-21-66136132 (Y.C.)
| | - Zhandong Li
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, China
- Correspondence: (T.H.); (Z.L.); (Y.C.); Tel.: +86-21-54923269 (T.H.); +86-21-66136132 (Y.C.)
| | - Yudong Cai
- School of Life Sciences, Shanghai University, Shanghai 200444, China; (X.Z.); (S.D.)
- Correspondence: (T.H.); (Z.L.); (Y.C.); Tel.: +86-21-54923269 (T.H.); +86-21-66136132 (Y.C.)
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Pavel P, Blunder S, Moosbrugger-Martinz V, Elias PM, Dubrac S. Atopic Dermatitis: The Fate of the Fat. Int J Mol Sci 2022; 23:2121. [PMID: 35216234 PMCID: PMC8880331 DOI: 10.3390/ijms23042121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 12/12/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic and relapsing inflammatory skin disease in which dry and itchy skin may develop into skin lesions. AD has a strong genetic component, as children from parents with AD have a two-fold increased chance of developing the disease. Genetic risk loci and epigenetic modifications reported in AD mainly locate to genes involved in the immune response and epidermal barrier function. However, AD pathogenesis cannot be fully explained by (epi)genetic factors since environmental triggers such as stress, pollution, microbiota, climate, and allergens also play a crucial role. Alterations of the epidermal barrier in AD, observed at all stages of the disease and which precede the development of overt skin inflammation, manifest as: dry skin; epidermal ultrastructural abnormalities, notably anomalies of the lamellar body cargo system; and abnormal epidermal lipid composition, including shorter fatty acid moieties in several lipid classes, such as ceramides and free fatty acids. Thus, a compelling question is whether AD is primarily a lipid disorder evolving into a chronic inflammatory disease due to genetic susceptibility loci in immunogenic genes. In this review, we focus on lipid abnormalities observed in the epidermis and blood of AD patients and evaluate their primary role in eliciting an inflammatory response.
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Affiliation(s)
- Petra Pavel
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, A-6020 Innsbruck, Austria; (P.P.); (S.B.); (V.M.-M.)
| | - Stefan Blunder
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, A-6020 Innsbruck, Austria; (P.P.); (S.B.); (V.M.-M.)
| | - Verena Moosbrugger-Martinz
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, A-6020 Innsbruck, Austria; (P.P.); (S.B.); (V.M.-M.)
| | - Peter M. Elias
- Department of Dermatology, University of California, San Francisco, CA 94115, USA;
| | - Sandrine Dubrac
- Department of Dermatology, Venereology and Allergology, Medical University of Innsbruck, A-6020 Innsbruck, Austria; (P.P.); (S.B.); (V.M.-M.)
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Long-Term Narrowband UV-B Efficacy in Moderate to Severe Atopic Dermatitis. Dermatitis 2021; 33:282-286. [DOI: 10.1097/der.0000000000000810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Transcriptomic Profiling of Tape-Strips From Moderate to Severe Atopic Dermatitis Patients Treated With Dupilumab. Dermatitis 2021; 32:S71-S80. [PMID: 34405829 DOI: 10.1097/der.0000000000000764] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Tape-strips are a minimally invasive approach to characterize skin biomarkers in atopic dermatitis (AD). However, they have not yet been used for tracking gene expression changes with systemic treatment. OBJECTIVE The aim of the study was to evaluate gene expression changes and therapeutic response biomarkers in AD patients before and after dupilumab (interleukin 4Rα antibody) treatment using tape-strips to obtain epidermal tissue for analysis. METHODS Lesional and nonlesional tape-stripped skin was sampled from 18 AD patients before and after dupilumab treatment and from 17 healthy subjects and analyzed by RNA-seq. RESULTS At baseline, we detected 6745 and 4859 differentially expressed genes between lesional and nonlesional skin versus normal, respectively, whereas 841 and 977 genes were differentially expressed after treatment, respectively (fold change >1.5 and false discovery rate <0.05). Tape-strips captured significant modulation with dupilumab in key AD immune (eg, C-C motif chemokine ligand 13 [CCL13], CCL17, CCL18) and barrier (eg, periplakin, FA2H) biomarkers. Changes in biomarkers (CCL20, interleukin 34, FABP7) were also significantly correlated with clinical disease improvements (Eczema Area and Severity Index; R > 0.5 or R < -0.4, P < 0.05). CONCLUSIONS This real-life study represents the first comprehensive RNA-seq molecular profiling of tape-strips from moderate to severe AD patients after dupilumab therapy. Analysis of tape strip specimens detected significant gene expression changes in key AD biomarkers with dupilumab treatment, suggesting that this approach may be useful to monitor therapeutic responses in inflammatory skin diseases.
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Immunohistopathological Analysis of Immunoglobulin E-Positive Epidermal Dendritic Cells with House Dust Mite Antigens in Naturally Occurring Skin Lesions of Adult and Elderly Patients with Atopic Dermatitis. Dermatopathology (Basel) 2021; 8:426-441. [PMID: 34563036 PMCID: PMC8482222 DOI: 10.3390/dermatopathology8030045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 11/17/2022] Open
Abstract
The immunopathogenic role of house dust mite (HDM) allergens in the development of skin lesions in atopic dermatitis (AD) has not yet been precisely clarified. We immunohistopathologically evaluated the localization of immunoglobulin E (IgE)-positive epidermal dendritic cells with HDM antigens in the skin lesions of patients with IgE-allergic AD. Using double-immunofluorescence and single-immunochemical staining methods, we analyzed biopsy specimens from the skin lesions of six patients with IgE-allergic AD and HDM allergy and 11 control subjects with inflammatory skin disorders. Inflammatory dendritic epidermal cells (IDECs; CD11c+ and CD206+ cells) were markedly observed in the central area of the spongiotic epidermis of skin lesions in all AD patients. Furthermore, IgE-positive IDECs with HDM antigens in the central areas of the spongiosis were found in four of the six (66.7%) AD patients. Langerhans cells (LCs; CD207+ cells) with HDM antigens were also observed in the peripheral areas of the spongiosis. Infiltration of CD4+ and CD8+ T cells in association with IgE-positive IDECs and LCs with HDM antigens was seen in the spongiotic epidermis. An IgE-mediated delayed-type hypersensitivity reaction, in combination with IgE-bearing dendritic cells, specific T cells, keratinocytes, and HDM antigens, may lead to spongiotic tissue formation in eczematous dermatitis in AD.
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30
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Guttman-Yassky E, Diaz A, Pavel AB, Fernandes M, Lefferdink R, Erickson T, Canter T, Rangel S, Peng X, Li R, Estrada Y, Xu H, Krueger JG, Paller AS. Use of Tape Strips to Detect Immune and Barrier Abnormalities in the Skin of Children With Early-Onset Atopic Dermatitis. JAMA Dermatol 2021; 155:1358-1370. [PMID: 31596431 DOI: 10.1001/jamadermatol.2019.2983] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Importance Molecular profiling of skin biopsies is the criterion standard for evaluating the cutaneous atopic dermatitis (AD) phenotype. However, skin biopsies are not always feasible in children. A reproducible minimally invasive approach that can track cutaneous disease in pediatric longitudinal studies or clinical trials is lacking. Objective To assess a minimally invasive approach using tape strips to identify skin biomarkers that may serve as a surrogate to biomarkers identified using whole-tissue biopsies. Design, Setting, and Participants This cross-sectional study of 51 children younger than 5 years recruited children with moderate to severe AD and children without AD from the dermatology outpatient clinics at a children's hospital. Sixteen tape strips were serially collected from the nonlesional and lesional skin of 21 children who had AD and were less than 6 months from disease initiation and from the normal skin of 30 children who did not have AD between January 22, 2016, and April 20, 2018. Main Outcomes and Measures Gene and protein expression were evaluated using quantitative real-time polymerase chain reaction and immunohistochemistry. Results A total of 51 children younger than 5 years were included in the study; 21 children had moderate to severe AD with less than 6 months of disease duration, and 30 children did not have AD. Of the 21 children with AD, the mean (SD) age was 1.7 (1.7) years, and most were male (15 [71.4%] and white (15 [71.4%]). Of the 30 children without AD, the mean (SD) age was 1.8 (2.0) years, and most were female (20 [66.7%]) and white (22 [73.3%]). Seventy-seven of 79 evaluated immune and barrier gene products were detected (gene detection rate, 97%) in 70 of 71 tape strips (sample detection rate, 99%), with 53 of 79 markers differentiating between children with lesional and/or nonlesional AD from children without AD. Many cellular markers of T cells (CD3), AD-related dendritic cells (Fc ε RI and OX40 ligand receptors), and key inflammatory (matrix metallopeptidase 12), innate (interleukin 8 [IL-8] and IL-6), helper T cell 2 (TH2; IL-4, IL-13, and chemokines CCL17 and CCL26), and TH17/TH22 (IL-19, IL-36G, and S100A proteins) genes were significantly increased in lesional and nonlesional AD compared with tape strips from normal skin. For example, IL-4 mean (SE) for lesional was -15.2 (0.91) and normal was -19.5 (0.48); P < .001. Parallel decreases occurred in epidermal barrier gene products (FLG, CLDN23, and FA2H) and negative immune regulators (IL-34 and IL-37). For example, the decrease for FLG lesional was mean (SE) -2.9 (0.42) and for normal was 2.2 (0.45); P < .001. Associations were found between disease severity or transepidermal water loss and TH2 (IL-33 and IL-4R) and TH17/TH22 (IL-36G and S100As) products in lesional and nonlesional AD skin (evaluated using the SCORing Atopic Dermatitis, Eczema Area and Severity Index, and Pruritus Atopic Dermatitis Quickscore tools). Conclusions and Relevance In this study, tape strips provide a minimally invasive alternative for serially evaluating AD-associated cutaneous biomarkers and may prove useful for tracking pediatric AD therapeutic response and predicting future course and comorbidities.
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Affiliation(s)
- Emma Guttman-Yassky
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Aisleen Diaz
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York.,School of Medicine, Ponce Health Sciences University, Ponce, Puerto Rico
| | - Ana B Pavel
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Marie Fernandes
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Rachel Lefferdink
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Taylor Erickson
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Talia Canter
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Stephanie Rangel
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Xiangyu Peng
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Randall Li
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Yeriel Estrada
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - Hui Xu
- Department of Dermatology and Laboratory for Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai Medical Center, New York, New York
| | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York
| | - Amy S Paller
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
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Zibandeh N, Genc D, Ozgen Z, Duran Y, Goker K, Baris S, Ergun T, Akkoc T. Mesenchymal stem cells derived from human dental follicle modulate the aberrant immune response in atopic dermatitis. Immunotherapy 2021; 13:825-840. [PMID: 33955241 DOI: 10.2217/imt-2020-0257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Atopic dermatitis (AD) is an inflammatory cutaneous disorder. The advancements in the understanding of AD immunological pathogenesis have caused the development of therapies that suppress the dysregulated immune response. We aimed to evaluate the immunomodulatory effect of dental stem cells (dental follicle-mesenchymal stem cells [DF-MSCs]) on AD patients. Materials & methods: We investigated the immunoregulatory potential of DF-MSCs on T cell response in AD and compared them with psoriasis and healthy individuals and the underlying mechanisms. Results: DF-MSCs significantly reduced Fas, FasL and TNFR II frequency in T cells, increased naive T cell population while reducing memory T cell, decreased inflammatory cytokine levels and promoted Tregs frequency in the AD population. Conclusion: These results imply that DF-MSCs are modulating inflammation through decreasing T cell apoptosis, inducing Treg expansion and stabilizing cytokine levels.
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Affiliation(s)
- Noushin Zibandeh
- Division of Pediatric Allergy & Immunology, Marmara University, Istanbul, Turkey.,Koc University Research Center for Translational Medicine, Koc University, Istanbul, Turkey
| | - Deniz Genc
- Division of Pediatric Allergy & Immunology, Marmara University, Istanbul, Turkey
| | - Zuleyha Ozgen
- Department of Dermatology, Marmara University, Istanbul, Turkey
| | - Yazgul Duran
- Division of Pediatric Allergy & Immunology, Marmara University, Istanbul, Turkey
| | - Kamil Goker
- Department of Oral & Maxillofacial Surgery, Marmara University, Istanbul, Turkey
| | - Safa Baris
- Division of Pediatric Allergy & Immunology, Marmara University, Istanbul, Turkey
| | - Tulin Ergun
- Department of Dermatology, Marmara University, Istanbul, Turkey
| | - Tunc Akkoc
- Division of Pediatric Allergy & Immunology, Marmara University, Istanbul, Turkey
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Lim CX, Lee B, Geiger O, Passegger C, Beitzinger M, Romberger J, Stracke A, Högenauer C, Stift A, Stoiber H, Poidinger M, Zebisch A, Meister G, Williams A, Flavell RA, Henao-Mejia J, Strobl H. miR-181a Modulation of ERK-MAPK Signaling Sustains DC-SIGN Expression and Limits Activation of Monocyte-Derived Dendritic Cells. Cell Rep 2021; 30:3793-3805.e5. [PMID: 32187550 DOI: 10.1016/j.celrep.2020.02.077] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 09/29/2019] [Accepted: 02/20/2020] [Indexed: 01/10/2023] Open
Abstract
DC-SIGN+ monocyte-derived dendritic cells (mo-DCs) play important roles in bacterial infections and inflammatory diseases, but the factors regulating their differentiation and proinflammatory status remain poorly defined. Here, we identify a microRNA, miR-181a, and a molecular mechanism that simultaneously regulate the acquisition of DC-SIGN expression and the activation state of DC-SIGN+ mo-DCs. Specifically, we show that miR-181a promotes DC-SIGN expression during terminal mo-DC differentiation and limits its sensitivity and responsiveness to TLR triggering and CD40 ligation. Mechanistically, miR-181a sustains ERK-MAPK signaling in mo-DCs, thereby enabling the maintenance of high levels of DC-SIGN and a high activation threshold. Low miR-181a levels during mo-DC differentiation, induced by inflammatory signals, do not support the high phospho-ERK signal transduction required for DC-SIGNhi mo-DCs and lead to development of proinflammatory DC-SIGNlo/- mo-DCs. Collectively, our study demonstrates that high DC-SIGN expression levels and a high activation threshold in mo-DCs are linked and simultaneously maintained by miR-181a.
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Affiliation(s)
- Clarice X Lim
- Otto Loewi Research Center, Chair of Immunology and Pathophysiology, Medical University of Graz, 8010 Graz, Austria; DK Inflammation & Immunity Program, Medical University of Vienna, 1090 Vienna, Austria
| | - Bernett Lee
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A(∗)STAR), Biopolis, 138648 Singapore, Singapore
| | - Olivia Geiger
- Division of Hematology, Medical University of Graz, 8010 Graz, Austria
| | - Christina Passegger
- Otto Loewi Research Center, Chair of Immunology and Pathophysiology, Medical University of Graz, 8010 Graz, Austria
| | - Michaela Beitzinger
- Laboratory for RNA Biology, Biochemistry Center Regensburg (BZR), University of Regensburg, 93053 Regensburg, Germany
| | - Johann Romberger
- Otto Loewi Research Center, Chair of Immunology and Pathophysiology, Medical University of Graz, 8010 Graz, Austria
| | - Anika Stracke
- Otto Loewi Research Center, Chair of Immunology and Pathophysiology, Medical University of Graz, 8010 Graz, Austria
| | - Christoph Högenauer
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, 8010 Graz, Austria
| | - Anton Stift
- Department of Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Heribert Stoiber
- Division of Virology, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Michael Poidinger
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A(∗)STAR), Biopolis, 138648 Singapore, Singapore
| | - Armin Zebisch
- Division of Hematology, Medical University of Graz, 8010 Graz, Austria; Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria
| | - Gunter Meister
- Laboratory for RNA Biology, Biochemistry Center Regensburg (BZR), University of Regensburg, 93053 Regensburg, Germany
| | - Adam Williams
- The Jackson Laboratory for Genomic Medicine, Department of Genetics and Genomic Sciences, University of Connecticut Health Center, Farmington, CT 06032, USA
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Howard Hughes Medical Institute, Yale University, New Haven, CT 06520, USA
| | - Jorge Henao-Mejia
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Herbert Strobl
- Otto Loewi Research Center, Chair of Immunology and Pathophysiology, Medical University of Graz, 8010 Graz, Austria.
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Wang T, Li K, Xiao S, Xia Y. A Plausible Role for Collectins in Skin Immune Homeostasis. Front Immunol 2021; 12:594858. [PMID: 33790889 PMCID: PMC8006919 DOI: 10.3389/fimmu.2021.594858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 02/25/2021] [Indexed: 12/13/2022] Open
Abstract
The skin is a complex organ that faces the external environment and participates in the innate immune system. Skin immune homeostasis is necessary to defend against external microorganisms and to recover from stress to the skin. This homeostasis depends on interactions among a variety of cells, cytokines, and the complement system. Collectins belong to the lectin pathway of the complement system, and have various roles in innate immune responses. Mannose-binding lectin (MBL), collectin kidney 1, and liver (CL-K1, CL-L1) activate the lectin pathway, while all have multiple functions, including recognition of pathogens, opsonization of phagocytosis, and modulation of cytokine-mediated inflammatory responses. Certain collectins are localized in the skin, and their expressions change during skin diseases. In this review, we summarize important advances in our understanding of how MBL, surfactant proteins A and D, CL-L1, and CL-K1 function in skin immune homeostasis. Based on the potential roles of collectins in skin diseases, we suggest therapeutic strategies for skin diseases through the targeting of collectins and relevant regulators.
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Affiliation(s)
- Tian Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ke Li
- Core Research Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shengxiang Xiao
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Matsuo K, Kitahata K, Kaibori Y, Arima Y, Iwama A, Ito M, Hara Y, Nagakubo D, Quan YS, Kamiyama F, Oiso N, Kawada A, Yoshie O, Nakayama T. CCR4 Involvement in the Expansion of T Helper Type 17 Cells in a Mouse Model of Psoriasis. J Invest Dermatol 2021; 141:1985-1994. [PMID: 33662381 DOI: 10.1016/j.jid.2020.12.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 11/29/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022]
Abstract
Psoriasis is a chronic skin disease associated with T helper (Th)17-mediated inflammation. Because CCR4 is a major chemokine receptor expressed on Th17 cells, we investigated the role of CCR4 in a modified imiquimod-induced psoriasis model that showed enhanced skin infiltration of Th17 cells. CCR4-deficient mice had less severe skin disease than wild-type mice. Th17 cells were decreased in the skin lesions and regional lymph nodes of CCR4-deficient mice. In the regional lymph nodes of wild-type mice, CD44+ memory Th17 cells expressing CCR4 were found to be clustered with dendritic cells expressing CCL22, a ligand for CCR4. Such dendritic cell‒Th17 cell clusters were significantly decreased in CCR4-deficient mice. Similar results were obtained using the IL-23‒induced psoriasis model. In vitro, compound 22, a CCR4 antagonist, significantly reduced the expansion of Th17 cells in the coculture of CD11c+ dendritic cells and CD4+ T cells separately prepared from the regional lymph nodes of wild-type mice with psoriasis. In vivo, compound 22 ameliorated the psoriasis-like skin disease in wild-type mice with significant decreases of Th17 cells in the regional lymph nodes and skin lesions. Collectively, CCR4 is likely to play a role in the pathogenesis of psoriasis through the expansion of Th17 cells.
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Affiliation(s)
- Kazuhiko Matsuo
- Division of Chemotherapy, Faculty of Pharmacy, Kindai University, Higashiosaka, Japan
| | - Kosuke Kitahata
- Division of Chemotherapy, Faculty of Pharmacy, Kindai University, Higashiosaka, Japan
| | - Yuichiro Kaibori
- Division of Health and Hygienic Sciences, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, Himeji, Japan
| | - Yuka Arima
- Division of Chemotherapy, Faculty of Pharmacy, Kindai University, Higashiosaka, Japan
| | - Arisa Iwama
- Division of Chemotherapy, Faculty of Pharmacy, Kindai University, Higashiosaka, Japan
| | - Mana Ito
- Division of Chemotherapy, Faculty of Pharmacy, Kindai University, Higashiosaka, Japan
| | - Yuta Hara
- Laboratory of Cell Biology, Faculty of Pharmacy, Kindai University, Higashiosaka, Japan
| | - Daisuke Nagakubo
- Division of Health and Hygienic Sciences, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, Himeji, Japan
| | | | | | - Naoki Oiso
- Department of Dermatology, Faculty of Medicine, Kindai University, Osakasayama, Japan
| | - Akira Kawada
- Department of Dermatology, Faculty of Medicine, Kindai University, Osakasayama, Japan
| | - Osamu Yoshie
- Faculty of Medicine, Kindai University, Higashiosaka, Japan; Health and Kampo Institute, Sendai, Japan
| | - Takashi Nakayama
- Division of Chemotherapy, Faculty of Pharmacy, Kindai University, Higashiosaka, Japan.
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35
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Ghoreschi K, Balato A, Enerbäck C, Sabat R. Therapeutics targeting the IL-23 and IL-17 pathway in psoriasis. Lancet 2021; 397:754-766. [PMID: 33515492 DOI: 10.1016/s0140-6736(21)00184-7] [Citation(s) in RCA: 209] [Impact Index Per Article: 69.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 04/09/2020] [Accepted: 09/14/2020] [Indexed: 02/06/2023]
Abstract
Psoriasis is a chronic inflammatory disease characterised by sharply demarcated erythematous and scaly skin lesions accompanied by systemic manifestations. Classified by WHO as one of the most serious non-infectious diseases, psoriasis affects 2-3% of the global population. Mechanistically, psoriatic lesions result from hyperproliferation and disturbed differentiation of epidermal keratinocytes that are provoked by immune mediators of the IL-23 and IL-17 pathway. Translational immunology has had impressive success in understanding and controlling psoriasis. Psoriasis is the first disease to have been successfully treated with therapeutics that directly block the action of the cytokines of this pathway; in fact, therapeutics that specifically target IL-23, IL-17, and IL-17RA are approved for clinical use and show excellent efficacy. Furthermore, inhibitors of IL-23 and IL-17 intracellular signalling, such as TYK2 or RORγt, are in clinical development. Although therapies that target the IL-23 and IL-17 pathway also improve psoriatic arthritis symptoms, their effects on long-term disease modification and psoriasis-associated comorbidities still need to be explored.
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Affiliation(s)
- Kamran Ghoreschi
- Department of Dermatology, Venereology, and Allergy, Charité-Universitätsmedizin Berlin, Berlin, Germany; Charité-Universitätsmedizin Berlin, Berlin, Germany.
| | - Anna Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - Charlotta Enerbäck
- Ingrid Asp Psoriasis Research Center, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Robert Sabat
- Psoriasis Research and Treatment Centre, Charité-Universitätsmedizin Berlin, Berlin, Germany; Charité-Universitätsmedizin Berlin, Berlin, Germany
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36
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Muller Q, Berthod F, Flacher V. [Tridimensional in vitro models of nervous and immune systems in the skin]. Med Sci (Paris) 2021; 37:68-76. [PMID: 33492221 DOI: 10.1051/medsci/2020260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The immune system and the sensory nervous system are responsible for perceiving danger under distinct yet complementary forms. In the last few years, neuroimmune interactions have become an important topic of dermatological research for conditions including wound healing, atopic dermatitis and psoriasis. We present here a selection of tridimensional in vitro models that reproduce skin structure and integrate an immune or a sensory function. Future evolutions of such models are expected to greatly contribute in a better understanding of reciprocal influences between sensory nervous system and immune system.
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Affiliation(s)
- Quentin Muller
- Laboratoire CNRS UPR3572 / I2CT Immunologie, immunopathologie et chimie thérapeutique, Université de Strasbourg, Institut de biologie moléculaire et cellulaire, 2 allée Konrad Roentgen, 67084 Strasbourg, France - Centre LOEX de l'Université Laval ; Centre de recherche du CHU de Québec - Université Laval et Département de chirurgie, Faculté de médecine, 1401, 18e avenue, Québec, QC G1J 1Z4, Canada - Adresse actuelle : Laboratoire BIOTIS, Inserm U1026, Université de Bordeaux, Bordeaux, France
| | - François Berthod
- Centre LOEX de l'Université Laval ; Centre de recherche du CHU de Québec - Université Laval et Département de chirurgie, Faculté de médecine, 1401, 18e avenue, Québec, QC G1J 1Z4, Canada
| | - Vincent Flacher
- Laboratoire CNRS UPR3572 / I2CT Immunologie, immunopathologie et chimie thérapeutique, Université de Strasbourg, Institut de biologie moléculaire et cellulaire, 2 allée Konrad Roentgen, 67084 Strasbourg, France
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37
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Gallais Sérézal I, Cheuk S, Martini E, Eidsmo L. Cellular scars and local crosstalk in relapsing psoriasis: an example of a skin sticking disease. Scand J Immunol 2020; 92:e12953. [PMID: 32757303 PMCID: PMC7685142 DOI: 10.1111/sji.12953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/14/2020] [Accepted: 07/29/2020] [Indexed: 12/22/2022]
Abstract
Psoriasis is an inflammatory disease that arises in genetically predisposed individuals. Chronic skin lesions that contain activated immune cells can persist for years. Systemic inhibition of TNF, IL‐17 and IL‐23 cytokines has revolutionized psoriasis care during the recent decades. Unfortunately, local relapse of disease is common at previously inflamed sites after cessation of treatment. This highlights that fundamental pathologic alterations of the affected tissues are not completely resolved during clinical remission. Here, we present arguments for a local disease memory located in both dermis and epidermis in psoriasis skin. We decipher different cellular components and intercellular crosstalk that sustain local disease memory and amplify disease relapse in human psoriasis. Decrypting the mechanisms underlying the establishment and persistence of pathogenic memory cells in resolved psoriasis may provide new therapeutic perspectives aimed at long‐term remission of psoriasis.
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Affiliation(s)
- Irène Gallais Sérézal
- Department of Medicine, Unit of Rheumatology Karolinska Institutet Solna, Stockholm, Sweden.,Department of Dermatology, Besançon University Hospital, Besançon, France
| | - Stanley Cheuk
- Department of Rheumatology and Inflammation Research, University of Gothenburg, Gothenburg, Sweden.,Department of Paediatrics, University of Oxford, Oxford, UK
| | - Elisa Martini
- Department of Medicine, Unit of Rheumatology Karolinska Institutet Solna, Stockholm, Sweden
| | - Liv Eidsmo
- Department of Medicine, Unit of Rheumatology Karolinska Institutet Solna, Stockholm, Sweden.,Diagnostiskt Centrum Hud, Stockholm, Sweden
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38
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Anselmi G, Helft J, Guermonprez P. Development and function of human dendritic cells in humanized mice models. Mol Immunol 2020; 125:151-161. [PMID: 32688117 DOI: 10.1016/j.molimm.2020.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/06/2020] [Accepted: 07/02/2020] [Indexed: 12/12/2022]
Abstract
Dendritic cells (DCs) are sentinel cells of the immune system arising from hematopoietic stem cells. DCs play a key role in the regulation of both adaptive and innate lymphocyte responses. As such, experimental models enabling a thorough analysis of human DCs development and function are needed. Humanized mice models (termed collectively as HIS mice, or human immune system mice models) provide unique opportunities to model human hematopoiesis and tackle the function of human immune cell types in vivo. Here, we review experimental approaches enabling to recapitulate the ontogeny of DC subsets in HIS mice and discuss studies addressing the biology of human DC subsets implementing HIS mice models.
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Affiliation(s)
- Giorgio Anselmi
- King's College London, Centre for Inflammation Biology and Cancer Immunology, The Peter Gorer Department of Immunobiology, United Kingdom
| | - Julie Helft
- PSL Research University, Institut Curie Research Center, Immunity and Cancer department, INSERM U932, Paris, France
| | - Pierre Guermonprez
- King's College London, Centre for Inflammation Biology and Cancer Immunology, The Peter Gorer Department of Immunobiology, United Kingdom; Université de Paris, Centre for Inflammation Research, CNRS ERL8252, INSERM 1149, Hopital Bichat Claude Bernard, France.
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39
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Carrascosa J, Morillas-Lahuerta V. Comorbidities in Atopic Dermatitis: An Update and Review of Controversies. ACTAS DERMO-SIFILIOGRAFICAS 2020. [DOI: 10.1016/j.adengl.2020.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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40
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He H, Suryawanshi H, Morozov P, Gay-Mimbrera J, Del Duca E, Kim HJ, Kameyama N, Estrada Y, Der E, Krueger JG, Ruano J, Tuschl T, Guttman-Yassky E. Single-cell transcriptome analysis of human skin identifies novel fibroblast subpopulation and enrichment of immune subsets in atopic dermatitis. J Allergy Clin Immunol 2020; 145:1615-1628. [DOI: 10.1016/j.jaci.2020.01.042] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 01/15/2020] [Accepted: 01/21/2020] [Indexed: 12/18/2022]
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41
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Carrascosa JM, Morillas-Lahuerta V. Comorbidities in Atopic Dermatitis: An Update and Review of Controversies. ACTAS DERMO-SIFILIOGRAFICAS 2020; 111:481-486. [PMID: 32401719 DOI: 10.1016/j.ad.2020.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/28/2020] [Accepted: 04/21/2020] [Indexed: 12/20/2022] Open
Abstract
Early onset of atopic dermatitis is considered a risk factor for any atopic disease, especially when the skin manifestations are persistent, and there is sensitization to multiple allergens and a family history. Atopic dermatitis is also thought to exert a synergistic effect with inflammation present in other organs and systems, as is the case in other immune-mediated inflammatory diseases. Most studies show a statistical relationship between obesity, various cardiometabolic comorbid conditions, and atopic dermatitis; this relationship is more marked when the disease is more severe or active over a longer period of time. However, other than epidemiological assessments, few studies provide in-depth evidence of functional mechanisms. Furthermore, various confounders, such as deterioration of quality of life and the psychological aspects of atopic dermatitis, could favor unhealthy habits, including a sedentary lifestyle and smoking, which could in turn increase the risk of morbidity and mortality. Chronic inflammation with differentiation toward a type 2 helper T cell pattern and the long-term use of immunosuppressants could be risk factors for some hematologic diseases, although they could exert a protective effect in others. The presence of proinflammatory cytokines capable of crossing the blood-brain barrier could favor an increase in the frequency of psychological diseases (eg, depression, anxiety, and suicidal ideation) and attention disorders (eg, attention deficit or hyperactivity). However, other factors, such as chronic pruritus and sleep disorders, could also play roles.
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Affiliation(s)
- J M Carrascosa
- Servicio de Dermatología. Hospital Universitari Germans Trias i Pujol. Universitat Autònoma de Barcelona, España.
| | - V Morillas-Lahuerta
- Servicio de Dermatología. Hospital Universitari Germans Trias i Pujol. Universitat Autònoma de Barcelona, España
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42
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Adam L, Tchitchek N, Todorova B, Rosenbaum P, Joly C, Poux C, Chapon C, Spetz AL, Ustav M, Le Grand R, Martinon F. Innate Molecular and Cellular Signature in the Skin Preceding Long-Lasting T Cell Responses after Electroporated DNA Vaccination. THE JOURNAL OF IMMUNOLOGY 2020; 204:3375-3388. [PMID: 32385135 DOI: 10.4049/jimmunol.1900517] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 04/09/2020] [Indexed: 12/21/2022]
Abstract
DNA vaccines delivered with electroporation (EP) have shown promising results in preclinical models and are evaluated in clinical trials. In this study, we aim to characterize early mechanisms occurring in the skin after intradermal injection and EP of the auxoGTUmultiSIV DNA vaccine in nonhuman primates. First, we show that EP acts as an adjuvant by enhancing local inflammation, notably via granulocytes, monocytes/macrophages, and CD1aint-expressing cell recruitment. EP also induced Langerhans cell maturation, illustrated by CD86, CD83, and HLA-DR upregulation and their migration out of the epidermis. Second, we demonstrate the crucial role of the DNA vaccine in soluble factors release, such as MCP-1 or IL-15. Transcriptomic analysis showed that EP played a major role in gene expression changes postvaccination. However, the DNA vaccine is required to strongly upregulate several genes involved in inflammatory responses (e.g., Saa4), cell migration (e.g., Ccl3, Ccl5, or Cxcl10), APC activation (e.g., Cd86), and IFN-inducible genes (e.g., Ifit3, Ifit5, Irf7, Isg15, orMx1), illustrating an antiviral response signature. Also, AIM-2, a cytosolic DNA sensor, appeared to be strongly upregulated only in the presence of the DNA vaccine and trends to positively correlate with several IFN-inducible genes, suggesting the potential role of AIM-2 in vaccine sensing and the subsequent innate response activation leading to strong adaptive T cell responses. Overall, these results demonstrate that a combined stimulation of the immune response, in which EP and the auxoGTUmultiSIV vaccine triggered different components of the innate immunity, led to strong and persistent cellular recall responses.
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Affiliation(s)
- Lucille Adam
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Nicolas Tchitchek
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Biliana Todorova
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Pierre Rosenbaum
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Candie Joly
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Candice Poux
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Catherine Chapon
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Anna-Lena Spetz
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE-106 91 Stockholm, Sweden; and
| | - Mart Ustav
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Roger Le Grand
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France
| | - Frédéric Martinon
- Immunology of Viral Infections and Autoimmune Diseases, Infectious Disease Models and Innovative Therapies Department, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université Paris-Sud 11, INSERM U1184, 92265 Fontenay-aux-Roses, France;
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Therapeutic treatment with Ibrutinib attenuates imiquimod-induced psoriasis-like inflammation in mice through downregulation of oxidative and inflammatory mediators in neutrophils and dendritic cells. Eur J Pharmacol 2020; 877:173088. [PMID: 32234429 DOI: 10.1016/j.ejphar.2020.173088] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/19/2020] [Accepted: 03/25/2020] [Indexed: 12/28/2022]
Abstract
Psoriasis is clinically characterized by well-demarcated silvery plaques which may appear on the extremities, scalp, and sacral area. The multidimensional interactions among innate immune cells [neutrophils and dendritic cells (DCs)], adaptive immune cells and skin resident cells result in characteristic features of psoriatic inflammation such as acanthosis, hyperkeratosis, and parakeratosis. Tec family kinases are involved in the pathogenesis of several inflammatory diseases. One of them is Bruton's tyrosine kinase (BTK) which is reported to carry out inflammatory and oxidative signaling in neutrophils and DCs. Effect of BTK inhibitor with regard to psoriatic inflammation has not been explored previously especially in a therapeutic setting. In the current investigation, effect of BTK inhibitor, Ibrutinib on oxidative/inflammatory signaling in dermal/splenic neutrophils [phosphorylated BTK (p-BTK), inducible nitric oxide synthase (iNOS), nitrotyrosine], CD11c + DCs (p-BTK, iNOS, nitrotyrosine, MCP-1, TNF-α) and enzymatic antioxidants [superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR)] in imiquimod (IMQ)-induced psoriatic inflammation was evaluated using therapeutic mode. Our results show that IMQ treatment led to induction of p-BTK expression along with concomitant increase in oxidative stress in neutrophils, and CD11c + DCs in skin/periphery. Therapeutic treatment with Ibrutinib caused attenuation of IMQ-induced oxidative stress in CD11c + DCs and neutrophils. Further there were dysregulations in antioxidants enzymes (SOD/GPx/GR) in the skin of IMQ-treated mice, which were corrected by Ibrutinib. In short, our study reveals that BTK signaling in neutrophils and CD11c + DCs upregulates oxidative stress which is concomitant with psoriatic inflammation in mice. Ibrutinib attenuates psoriasis inflammation through downregulation of oxidative stress in these innate immune cells.
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44
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Pezzolo E, Naldi L. Epidemiology of major chronic inflammatory immune-related skin diseases in 2019. Expert Rev Clin Immunol 2020; 16:155-166. [DOI: 10.1080/1744666x.2020.1719833] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Elena Pezzolo
- Study Centre of the Italian Group for the Epidemiologic Research in Dermatology (GISED), Bergamo, Italy
- Department of Dermatology, San Bortolo Hospital, Vicenza, Italy
| | - Luigi Naldi
- Study Centre of the Italian Group for the Epidemiologic Research in Dermatology (GISED), Bergamo, Italy
- Department of Dermatology, San Bortolo Hospital, Vicenza, Italy
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45
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Review-Current Concepts in Inflammatory Skin Diseases Evolved by Transcriptome Analysis: In-Depth Analysis of Atopic Dermatitis and Psoriasis. Int J Mol Sci 2020; 21:ijms21030699. [PMID: 31973112 PMCID: PMC7037913 DOI: 10.3390/ijms21030699] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 12/14/2022] Open
Abstract
During the last decades, high-throughput assessment of gene expression in patient tissues using microarray technology or RNA-Seq took center stage in clinical research. Insights into the diversity and frequency of transcripts in healthy and diseased conditions provide valuable information on the cellular status in the respective tissues. Growing with the technique, the bioinformatic analysis toolkit reveals biologically relevant pathways which assist in understanding basic pathophysiological mechanisms. Conventional classification systems of inflammatory skin diseases rely on descriptive assessments by pathologists. In contrast to this, molecular profiling may uncover previously unknown disease classifying features. Thereby, treatments and prognostics of patients may be improved. Furthermore, disease models in basic research in comparison to the human disease can be directly validated. The aim of this article is not only to provide the reader with information on the opportunities of these techniques, but to outline potential pitfalls and technical limitations as well. Major published findings are briefly discussed to provide a broad overview on the current findings in transcriptomics in inflammatory skin diseases.
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46
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Wang A, Bai Y. Dendritic cells: The driver of psoriasis. J Dermatol 2019; 47:104-113. [PMID: 31833093 DOI: 10.1111/1346-8138.15184] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/17/2019] [Indexed: 12/20/2022]
Abstract
Psoriasis is a chronic skin inflammatory disorder, the immune mechanism of which has been profoundly elucidated in the past few years. The dominance of the interleukin (IL)-23/IL-17 axis is a significant breakthrough in the understanding of the pathogenesis of psoriasis, and treatment targeting IL-23 and IL-17 has successfully benefited patients with the disease. The skin contains a complex network of dendritic cells (DC) mainly composed of epidermal Langerhans cells, bone marrow-derived dermal conventional DC, plasmacytoid DC and inflammatory DC. As the prominent cellular source of α-interferon, tumor necrosis factor-α, IL-12 and IL-23, DC play a pivotal role in psoriasis. Thus, targeting pathogenic DC subsets is a valid strategy for alleviating and preventing psoriasis and other DC-derived diseases. In this review, we survey the known role of DC in this disease.
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Affiliation(s)
- Ao Wang
- Clinical Institute of China-Japan Friendship Hospital, Graduate School of Peking Union Medical College, Beijing, China.,Department of Dermatology and Venerology, China-Japan Friendship Hospital, Beijing, China
| | - YanPing Bai
- Clinical Institute of China-Japan Friendship Hospital, Graduate School of Peking Union Medical College, Beijing, China.,Department of Dermatology and Venerology, China-Japan Friendship Hospital, Beijing, China
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47
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Amon L, Lehmann CHK, Baranska A, Schoen J, Heger L, Dudziak D. Transcriptional control of dendritic cell development and functions. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2019; 349:55-151. [PMID: 31759434 DOI: 10.1016/bs.ircmb.2019.10.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dendritic cells (DCs) are major regulators of adaptive immunity, as they are not only capable to induce efficient immune responses, but are also crucial to maintain peripheral tolerance and thereby inhibit autoimmune reactions. DCs bridge the innate and the adaptive immune system by presenting peptides of self and foreign antigens as peptide MHC complexes to T cells. These properties render DCs as interesting target cells for immunomodulatory therapies in cancer, but also autoimmune diseases. Several subsets of DCs with special properties and functions have been described. Recent achievements in understanding transcriptional programs on single cell level, together with the generation of new murine models targeting specific DC subsets, advanced our current understanding of DC development and function. Thus, DCs arise from precursor cells in the bone marrow with distinct progenitor cell populations splitting the monocyte populations and macrophage populations from the DC lineage, which upon lineage commitment can be separated into conventional cDC1, cDC2, and plasmacytoid DCs (pDCs). The DC populations harbor intrinsic programs enabling them to react for specific pathogens in dependency on the DC subset, and thereby orchestrate T cell immune responses. Similarities, but also varieties, between human and murine DC subpopulations are challenging, and will require further investigation of human specimens under consideration of the influence of the tissue micromilieu and DC subset localization in the future.
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Affiliation(s)
- Lukas Amon
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Christian H K Lehmann
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Anna Baranska
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Janina Schoen
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Lukas Heger
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Diana Dudziak
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany.
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48
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Pathophysiology of Atopic Dermatitis and Psoriasis: Implications for Management in Children. CHILDREN-BASEL 2019; 6:children6100108. [PMID: 31590274 PMCID: PMC6826460 DOI: 10.3390/children6100108] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/15/2022]
Abstract
Atopic dermatitis (AD) and psoriasis are chronic inflammatory skin diseases associated with a significant cutaneous and systemic burden of disease as well as a poor health-related quality of life. Here, we review the complex pathophysiology of both AD and psoriasis and discuss the implications for treatment with current state-of-the-art and emerging topical and systemic therapies. Both AD and psoriasis are caused by a complex combination of immune dysregulation, skin-barrier disruption, genetic factors, and environmental influences. Previous treatments for both diseases were limited to anti-inflammatory agents that broadly suppress inflammation. Emerging insights into relevant pathways, including recognition of the role of T-helper type 2 driven inflammation in AD and T-helper 1 and 17 driven inflammation in psoriasis, have led to a therapeutic revolution. There are a number of novel treatment options available for AD and psoriasis with many more currently under investigation.
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49
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Zibandeh N, Genc D, Ozgen Z, Duran Y, Kasap N, Goker K, Baris S, Ergun T, Akkoc T. Effect of Dental Follicle Mesenchymal Stem Cell on Th1 and Th2 Derived Naive T Cells in Atopic Dermatitis Patients. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2019. [DOI: 10.33808/clinexphealthsci.600104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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Coillard A, Segura E. In vivo Differentiation of Human Monocytes. Front Immunol 2019; 10:1907. [PMID: 31456804 PMCID: PMC6700358 DOI: 10.3389/fimmu.2019.01907] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/29/2019] [Indexed: 01/10/2023] Open
Abstract
Circulating monocytes can infiltrate mucosal or inflamed tissues where they differentiate into either macrophages or dendritic cells. This paradigm is supported by numerous studies conducted in mice and in different in vitro settings for human cells. Determining whether it holds true in vivo in humans is essential for the successful design of monocyte-targeting therapies. Despite limitations inherent to working with human samples, there is accumulating evidence of the existence of in vivo-generated monocyte-derived cells in humans. Here, we review recent studies showing the recruitment of human monocytes into tissues and their differentiation into macrophages or dendritic cells, in normal or pathological settings. We examine the methods available in human studies to demonstrate the monocytic origin of infiltrating cells. Finally, we review the functions of human monocyte-derived cells and how they might contribute to pathogeny.
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Affiliation(s)
- Alice Coillard
- Institut Curie, PSL Research University, INSERM U932, Paris, France.,Université Paris Descartes, Paris, France
| | - Elodie Segura
- Institut Curie, PSL Research University, INSERM U932, Paris, France
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