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Seo DY, Park JW, Kim SH, Oh SR, Han SB, Kwon OK, Ahn KS. Effect of Isoscopoletin on Cytokine Expression in HaCaT Keratinocytes and RBL-2H3 Basophils: Preliminary Study. Int J Mol Sci 2024; 25:6908. [PMID: 39000019 PMCID: PMC11240891 DOI: 10.3390/ijms25136908] [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: 05/20/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024] Open
Abstract
Isoscopoletin is a compound derived from various plants traditionally used for the treatment of skin diseases. However, there have been no reported therapeutic effects of isoscopoletin on atopic dermatitis (AD). AD is a chronic inflammatory skin disease, and commonly used treatments have side effects; thus, there is a need to identify potential natural candidate substances. In this study, we aimed to investigate whether isoscopoletin regulates the inflammatory mediators associated with AD in TNF-α/IFN-γ-treated HaCaT cells and PMA/ionomycin treated RBL-2H3 cells. We determined the influence of isoscopoletin on cell viability through an MTT assay and investigated the production of inflammatory mediators using ELISA and RT-qPCR. Moreover, we analyzed the transcription factors that regulate inflammatory mediators using Western blots and ICC. The results showed that isoscopoletin did not affect cell viability below 40 μM in either HaCaT or RBL-2H3 cells. Isoscopoletin suppressed the production of TARC/CCL17, MDC/CCL22, MCP-1/CCL2, IL-8/CXCL8, and IL-1β in TNF-α/IFN-γ-treated HaCaT cells and IL-4 in PMA/ionomycin-treated RBL-2H3 cells. Furthermore, in TNF-α/IFN-γ-treated HaCaT cells, the phosphorylation of signaling pathways, including MAPK, NF-κB, STAT, and AKT/PKB, increased but was decreased by isoscopoletin. In PMA/ionomycin-treated RBL-2H3 cells, the activation of signaling pathways including PKC, MAPK, and AP-1 increased but was decreased by isoscopoletin. In summary, isoscopoletin reduced the production of inflammatory mediators by regulating upstream transcription factors in TNF-α/IFN-γ-treated HaCaT cells and PMA/ionomycin-treated RBL-2H3 cells. Therefore, we suggest that isoscopoletin has the potential for a therapeutic effect, particularly in skin inflammatory diseases such as AD, by targeting keratinocytes and basophils.
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Affiliation(s)
- Da-Yun Seo
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea; (D.-Y.S.); (S.-B.H.)
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea; (S.-H.K.); (S.-R.O.)
| | - Ji-Won Park
- Practical Research Division, Honam National Institute of Biological Resources (HNIBR), Mokpo 58762, Republic of Korea;
| | - Seung-Ho Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea; (S.-H.K.); (S.-R.O.)
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea; (S.-H.K.); (S.-R.O.)
| | - Sang-Bae Han
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea; (D.-Y.S.); (S.-B.H.)
| | - Ok-Kyoung Kwon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea; (S.-H.K.); (S.-R.O.)
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea; (S.-H.K.); (S.-R.O.)
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Prajapati S, Fardos M, Desai AD, Feldman SR. The role of lebrikizumab in the treatment of atopic dermatitis in the adult population. Immunotherapy 2023; 15:981-991. [PMID: 37401345 DOI: 10.2217/imt-2023-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023] Open
Abstract
Although there are many atopic dermatitis (AD) treatments, finding a long-term medication with minimal side effects can be difficult. This review characterizes lebrikizumab as AD treatment in adults. A literature search was conducted to examine lebrikizumab's role in treating moderate to severe AD. In a phase III trial, 74% of adults with AD treated with lebrikizumab 250 mg every 4 weeks achieved an Investigator Global Assessment of 0/1, 79% achieved Eczema Area and Severity Index 75 and 79% experienced improvements in pruritus numeric rating scale scores relative to placebo. Common adverse effects in the ADvocate1 and ADvocate2 trials were conjunctivitis (7 and 8%, respectively), nasopharyngitis (4 and 5%, respectively) and headache (3 and 5%, respectively). Results from clinical trials suggest that lebrikizumab may be a viable alternative for AD management.
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Affiliation(s)
- Stuti Prajapati
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Mohammad Fardos
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
- Department of Dermatology, HCA Florida Largo Hospital, Largo, FL, USA
| | - Amar D Desai
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
- Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Steven R Feldman
- Department of Dermatology, Center for Dermatology Research, Wake Forest School of Medicine, Winston-Salem, NC, USA
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC, USA
- Department of Social Sciences & Health Policy, Wake Forest School of Medicine, NC, USA
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Pavel AB, Del Duca E, Cheng J, Wu J, Ungar B, Estrada YD, Jack C, Maari C, Proulx ÉSC, Ramirez-Valle F, Krueger JG, Bissonnette R, Guttman-Yassky E. Delayed type hypersensitivity reactions to various allergens may differently model inflammatory skin diseases. Allergy 2023; 78:178-191. [PMID: 36178084 DOI: 10.1111/all.15538] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/22/2022] [Accepted: 09/08/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Treatment of inflammatory skin diseases, including atopic dermatitis (AD) and psoriasis, is undergoing transformative changes, highlighting the need to develop experimental models of skin inflammation in humans to predict treatment responses. METHODS We topically or intradermally administered four common sensitizers (dust mite (DM), diphencyprone (DPCP), nickel (Ni), and purified protein derivative (PPD)) to the backs of 40 healthy patients and the skin hypersensitivity response was biopsied and evaluated using immunohistochemistry, RNA-seq, and RT-PCR. RESULTS All agents induced strong increases in cellular infiltrates (T-cells and dendritic cells) as compared to untreated skin (p < .05), with variable T helper polarization. Overall, DPCP induced the strongest immune responses across all pathways, including innate immunity (IL-1α, IL-8), Th1 (IFNγ, CXCL10), Th2 (IL-5, CCL11), and Th17 (CAMP/LL37) products, as well as the highest regulatory tone (FOXP3, IL-34, IL-37) (FDR <0.01). Nickel induced Th17 (IL-17A), Th1 (CXCL10) and Th2 (IL-4R) immune responses to a lesser extent than DPCP (p < .05). PPD induced predominantly Th1 (IFNγ, CXCL10, STAT1) and Th17 inflammation (IL-17A) (p < .05). DM induced modulation of Th2 (IL-13, CCL17, CCL18), Th22 (IL-22), and Th17/Th22 (S100A7/9/12) pathways (p < .05). Barrier defects that characterize both AD and psoriasis were best modeled by DPCP and Ni, followed by PPD, including downregulation of terminal differentiation (FLG, FLG2, LOR, LCEs), tight junction (CLDN1/CLDN8), and lipid metabolism (FA2H, FABP7)-related markers. CONCLUSION Our data imply that DPCP induced the strongest immune response across all pathways, and barrier defects characteristic of AD and psoriasis.
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Affiliation(s)
- Ana B Pavel
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ester Del Duca
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Dermatology, University of Magna Graecia, Catanzaro, Italy
| | - Julia Cheng
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jianni Wu
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Benjamin Ungar
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Yeriel D Estrada
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Carolyn Jack
- Innovaderm Research Inc, Montreal, Quebec, Canada
| | | | | | | | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
| | | | - Emma Guttman-Yassky
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Laboratory for Investigative Dermatology, The Rockefeller University, New York, New York, USA
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Gonzalez JR, Celli A, Weckel A, Dhariwala MO, Merana GR, Ojewumi OT, Okoro J, Dwyer LR, Tran VM, Meyer JM, Mauro TM, Scharschmidt TC. FLG Deficiency in Mice Alters the Early-Life CD4 + T-Cell Response to Skin Commensal Bacteria. J Invest Dermatol 2022; 143:790-800.e12. [PMID: 36496196 DOI: 10.1016/j.jid.2022.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/06/2022] [Accepted: 10/17/2022] [Indexed: 12/12/2022]
Abstract
FLG variants underlie ichthyosis vulgaris and increased risk of atopic dermatitis, conditions typified by disruption of the skin microbiome and cutaneous immune response. Yet, it remains unclear whether neonatal skin barrier compromise because of FLG deficiency alters the quality of commensal-specific T cells and the functional impact of such responses. To address these questions, we profiled changes in the skin barrier and early cutaneous immune response of neonatal C57BL/6 Flg‒/‒ and wild-type mice using single-cell RNA sequencing, flow cytometry, and other modalities. Flg‒/‒ neonates showed little alteration in transepidermal water loss or lipid- or corneocyte-related gene expression. However, they showed increases in barrier disruption genes, epidermal dye penetration, and numbers of skin CD4+ T cells. Using an engineered strain of Staphylococcus epidermidis (S. epidermidis 2W) to study the response to neonatal skin colonization, we found that commensal-specific CD4+ T cells were skewed in Flg‒/‒ pups toward effector rather than regulatory T cells. This altered response persisted into adulthood, where it was typified by T helper 17 (Th17) cells and associated with increased susceptibility to imiquimod-induced skin inflammation. Thus, subtle but impactful differences in neonatal barrier function in Flg‒/‒ mice are accompanied by a skewed commensal-specific CD4+ response, with enduring consequences for skin immune homeostasis.
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Affiliation(s)
- Jeanmarie R Gonzalez
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA; Biomedical Sciences Graduate Program, University of California San Francisco, San Francisco, California, USA
| | - Anna Celli
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA; Dermatology Service, San Francisco VA Medical Center, San Francisco, California, USA
| | - Antonin Weckel
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Miqdad O Dhariwala
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Geil R Merana
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Oluwasunmisola T Ojewumi
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Joy Okoro
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Laura R Dwyer
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA; Biomedical Sciences Graduate Program, University of California San Francisco, San Francisco, California, USA
| | - Victoria M Tran
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA; Biomedical Sciences Graduate Program, University of California San Francisco, San Francisco, California, USA
| | - Jason M Meyer
- Department of Dermatology, Vanderbilt University Medical Center, Nashville, Tennesse, USA
| | - Theodora M Mauro
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA; Dermatology Service, San Francisco VA Medical Center, San Francisco, California, USA
| | - Tiffany C Scharschmidt
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA.
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Kwon Y, Cho SY, Kwon J, Hwang M, Hwang H, Kang YJ, Lee HS, Kim J, Kim WK. Anti-atopic dermatitis effects of Parasenecio auriculatus via simultaneous inhibition of multiple inflammatory pathways. BMB Rep 2022. [PMID: 35168697 PMCID: PMC9252893 DOI: 10.5483/bmbrep.2022.55.6.144] [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] [Indexed: 11/20/2022] Open
Abstract
The treatment of atopic dermatitis (AD) is challenging due to its complex etiology. From epidermal disruption to chronic inflammation, various cells and inflammatory pathways contribute to the progression of AD. As with immunosuppressants, general inhibition of inflammatory pathways can be effective, but this approach is not suitable for long-term treatment due to its side effects. This study aimed to identify a plant extract (PE) with anti-inflammatory effects on multiple cell types involved in AD development and provide relevant mechanistic evidence. Degranulation was measured in RBL-2H3 cells to screen 30 PEs native to South Korea. To investigate the anti-inflammatory effects of Parasenecio auriculatus var. matsumurana Nakai extract (PAE) in AD, production of cytokines and nitric oxide, activation status of FcεRI and TLR4 signaling, cell-cell junction, and cell viability were evaluated using qRT-PCR, western blotting, confocal microscopy, Griess system, and an MTT assay in RBL-2H3, HEK293, RAW264.7, and HaCaT cells. For in vivo experiments, a DNCB-induced AD mouse model was constructed, and hematoxylin and eosin, periodic acid-Schiff, toluidine blue, and F4/80-staining were performed. The chemical constituents of PAE were analyzed by HPLC-MS. By measuring the anti-degranulation effects of 30 PEs in RBL-2H3 cells, we found that Paeonia lactiflora Pall., PA, and Rehmannia glutinosa (Gaertn.) Libosch. ex Steud. show an inhibitory activity of more than 50%. Of these, PAE most dramatically and consistently suppressed cytokine expression, including IL-4, IL-9, IL-13, and TNF-α. PAE potently inhibited FcεRI signaling, which mechanistically supports its basophil-stabilizing effects, and PAE downregulated cytokines and NO production in macrophages via perturbation of toll-like receptor signaling. Moreover, PAE suppressed cytokine production in keratinocytes and upregulated the expression of tight junction molecules ZO-1 and occludin. In a DNCB-induced AD mouse model, the topical application of PAE significantly improved atopic index scores, immune cell infiltration, cytokine expression, abnormal activation of signaling molecules in FcεRI and TLR signaling, and damaged skin structure compared with dexamethasone. The anti-inflammatory effect of PAE was mainly due to integerrimine. Our findings suggest that PAE could potently inhibit multi-inflammatory cells involved in AD development, synergistically block the propagation of inflammatory responses, and thus alleviate AD symptoms.
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Affiliation(s)
- Yujin Kwon
- Natural Product Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science & Technology, University of Science and Technology (UST), Daejeon 34113, Korea
| | - Su-Yeon Cho
- Natural Product Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science & Technology, University of Science and Technology (UST), Daejeon 34113, Korea
| | - Jaeyoung Kwon
- Division of Bio-Medical Science & Technology, University of Science and Technology (UST), Daejeon 34113, Korea
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
| | - Min Hwang
- Department of Pharmacology, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Hoseong Hwang
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
| | - Yoon Jin Kang
- Natural Product Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Department of Marine Life Sciences, College of Life Science, Gangneung-Wonju National University, Gangneung 25457, Korea
| | - Hyeon-Seong Lee
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
| | - Jiyoon Kim
- Department of Pharmacology, Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Won Kyu Kim
- Natural Product Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science & Technology, University of Science and Technology (UST), Daejeon 34113, Korea
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Tizek L, Schielein MC, Tizek L, Zink A. [Atopic dermatitis-identifying needs in the German population by internet search queries]. Hautarzt 2022; 73:475-484. [PMID: 35294564 PMCID: PMC8925291 DOI: 10.1007/s00105-022-04974-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2022] [Indexed: 12/27/2022]
Abstract
Hintergrund Das Internet ist eine der wichtigsten Informationsquellen für gesundheitliche Themen für die Allgemeinbevölkerung. Deshalb kann die Analyse von Internetsuchmaschinen dabei helfen, die gesellschaftlichen Interessen und Bedürfnisse bezüglich Erkrankungen zu erfassen. Ziel Ziel dieser Studie war es, die Suchanfragen zu atopischer Dermatitis (AD) in Bezug auf Häufigkeit, Interessenschwerpunkt und zeitliches Auftreten in allen deutschen Bundesländern zu untersuchen, um mögliche regionale Unterschiede zu identifizieren. Material und Methoden Mithilfe des Google Ads Keyword Planner wurden AD relevante Keywords inklusive deren monatlichen Suchvolumens zwischen Januar 2017 und Dezember 2020 identifiziert, die in Interessenschwerpunkte unterteilt wurden. Ergebnisse Es wurden 1419 Keywords gefunden, die ein Suchvolumen von 14.817.610 Anfragen hatten. Das größte Suchvolumen hatte die Kategorie Allgemein (n = 5.970.840), jedoch wurden der Kategorie Lokalisation die meisten Keywords zugeordnet (n = 348). Rund 60 % der Keywords zu Lokalisation bezogen sich auf AD im Gesicht. Von allen Bundesländern hatten Bremen und Hamburg das größte Suchvolumen pro 100.000 Einwohner. Mit über 70 % war ein enormer Anstieg im Suchvolumen zu beobachten, der v. a. 2020 sichtbar wurde. Diskussion Durch diese Internetsuchmaschinenanalyse konnte verdeutlicht werden, welche AD-relevanten Aspekte von besonderer Bedeutung für die Bevölkerung waren, was dabei helfen kann, Informationskampagnen zielgerichtet anzupassen. Zudem unterstreicht die Studie die immer größer werdende Relevanz des Internets als Informationsquelle für gesundheitliche Themen. Zusatzmaterial online Die Online-Version dieses Beitrags (10.1007/s00105-022-04974-x) enthält zusätzliche Tabellen. Beitrag und Zusatzmaterial stehen Ihnen im elektronischen Volltextarchiv auf https://www.springermedizin.de/der-hautarzt zur Verfügung. Sie finden das Zusatzmaterial am Beitragsende unter „Supplementary Information“.
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Affiliation(s)
- Linda Tizek
- Fakultät für Medizin, Klinik und Poliklinik für Dermatologie und Allergologie, Technische Universität München, Biedersteiner Str. 29, 80802, München, Deutschland.
| | - Maximilian C Schielein
- Fakultät für Medizin, Klinik und Poliklinik für Dermatologie und Allergologie, Technische Universität München, Biedersteiner Str. 29, 80802, München, Deutschland
| | - Lucas Tizek
- Fakultät für Medizin, Klinik und Poliklinik für Dermatologie und Allergologie, Technische Universität München, Biedersteiner Str. 29, 80802, München, Deutschland
| | - Alexander Zink
- Fakultät für Medizin, Klinik und Poliklinik für Dermatologie und Allergologie, Technische Universität München, Biedersteiner Str. 29, 80802, München, Deutschland
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7
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Brough HA, Lanser BJ, Sindher SB, Teng JMC, Leung DYM, Venter C, Chan SM, Santos AF, Bahnson HT, Guttman‐Yassky E, Gupta RS, Lack G, Ciaccio CE, Sampath V, Nadeau KC, Nagler CR. Early intervention and prevention of allergic diseases. Allergy 2022; 77:416-441. [PMID: 34255344 DOI: 10.1111/all.15006] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/09/2021] [Indexed: 12/12/2022]
Abstract
Food allergy (FA) is now one of the most common chronic diseases of childhood often lasting throughout life and leading to significant worldwide healthcare burden. The precise mechanisms responsible for the development of this inflammatory condition are largely unknown; however, a multifactorial aetiology involving both environmental and genetic contributions is well accepted. A precise understanding of the pathogenesis of FA is an essential first step to developing comprehensive prevention strategies that could mitigate this epidemic. As it is frequently preceded by atopic dermatitis and can be prevented by early antigen introduction, the development of FA is likely facilitated by the improper initial presentation of antigen to the developing immune system. Primary oral exposure of antigens allowing for presentation via a well-developed mucosal immune system, rather than through a disrupted skin epidermal barrier, is essential to prevent FA. In this review, we present the data supporting the necessity of (1) an intact epidermal barrier to prevent epicutaneous antigen presentation, (2) the presence of specific commensal bacteria to maintain an intact mucosal immune system and (3) maternal/infant diet diversity, including vitamins and minerals, and appropriately timed allergenic food introduction to prevent FA.
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Affiliation(s)
- Helen A. Brough
- Department Women and Children’s Health (Pediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences King’s College London London UK
- Children’s Allergy Service Evelina Children’s Hospital Guy’s and St. Thomas’s NHS Foundation Trust London UK
| | - Bruce Joshua Lanser
- Division of Pediatric Allergy‐Immunology Department of Pediatrics National Jewish Health Denver CO USA
| | - Sayantani B. Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford University Stanford CA USA
- Division of Pulmonary and Critical Care Medicine Department of Medicine Stanford University Stanford CA USA
- Division of Allergy, Immunology and Rheumatology Department of Medicine Stanford University Stanford CA USA
| | - Joyce M. C. Teng
- Department of Dermatology Lucile Packard Children's Hospital at the Stanford University School of Medicine Palo Alto CA USA
| | - Donald Y. M. Leung
- Division of Pediatric Allergy‐Immunology Department of Pediatrics National Jewish Health Denver CO USA
| | - Carina Venter
- Section of Allergy & Immunology School of Medicine University of Colorado DenverChildren's Hospital Colorado Aurora CO USA
| | - Susan M. Chan
- Department Women and Children’s Health (Pediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences King’s College London London UK
- Children’s Allergy Service Evelina Children’s Hospital Guy’s and St. Thomas’s NHS Foundation Trust London UK
| | - Alexandra F. Santos
- Department Women and Children’s Health (Pediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences King’s College London London UK
- Children’s Allergy Service Evelina Children’s Hospital Guy’s and St. Thomas’s NHS Foundation Trust London UK
- Asthma UK Centre in Allergic Mechanisms of Asthma London UK
| | - Henry T. Bahnson
- Benaroya Research Institute and Immune Tolerance Network Seattle WA USA
| | - Emma Guttman‐Yassky
- Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York NY USA
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
| | - Ruchi S. Gupta
- Center for Food Allergy and Asthma Research Northwestern University Feinberg School of Medicine Chicago IL USA
- Ann & Robert H. Lurie Children's Hospital of Chicago Chicago IL USA
| | - Gideon Lack
- Department Women and Children’s Health (Pediatric Allergy) School of Life Course Sciences Faculty of Life Sciences and Medicine King’s College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences King’s College London London UK
- Children’s Allergy Service Evelina Children’s Hospital Guy’s and St. Thomas’s NHS Foundation Trust London UK
| | | | - Vanitha Sampath
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford University Stanford CA USA
| | - Kari C. Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University Stanford University Stanford CA USA
- Division of Pulmonary and Critical Care Medicine Department of Medicine Stanford University Stanford CA USA
- Division of Allergy, Immunology and Rheumatology Department of Medicine Stanford University Stanford CA USA
| | - Cathryn R. Nagler
- Department of Pathology and Pritzker School of Molecular Engineering University of Chicago Chicago IL USA
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Effect of mRNA Delivery Modality and Formulation on Cutaneous mRNA Distribution and Downstream eGFP Expression. Pharmaceutics 2022; 14:pharmaceutics14010151. [PMID: 35057047 PMCID: PMC8780332 DOI: 10.3390/pharmaceutics14010151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/17/2021] [Accepted: 12/29/2021] [Indexed: 02/01/2023] Open
Abstract
In vitro transcribed messenger ribonucleic acid (mRNA) constitutes an emerging therapeutic class with several clinical applications. This study presents a systematic comparison of different technologies—intradermal injection, microneedle injection, jet injection, and fractional laser ablation—for the topical cutaneous delivery of mRNA. Delivery of Cy5 labeled mRNA and non-labeled enhanced green fluorescent protein (eGFP) expressing mRNA was investigated in a viable ex vivo porcine skin model and monitored for 48 h. Forty 10 µm-thick horizontal sections were prepared from each skin sample and Cy5 labeled mRNA or eGFP expression visualized as a function of depth by confocal laser scanning microscopy and immunohistochemistry. A pixel-based method was used to create a semi-quantitative biodistribution profile. Different spatial distributions of Cy5 labeled mRNA and eGFP expression were observed, depending on the delivery modality; localization of eGFP expression pointed to the cells responsible. Delivery efficiencies and knowledge of delivery sites can facilitate development of efficient, targeted mRNA-based therapeutics.
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Zhang M, Duffen JL, Nocka KH, Kasaian MT. IL-13 Controls IL-33 Activity through Modulation of ST2. THE JOURNAL OF IMMUNOLOGY 2021; 207:3070-3080. [PMID: 34789557 DOI: 10.4049/jimmunol.2100655] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/13/2021] [Indexed: 12/12/2022]
Abstract
IL-33 is a multifunctional cytokine that mediates local inflammation upon tissue damage. IL-33 is known to act on multiple cell types including group 2 innate lymphoid cells (ILC2s), Th2 cells, and mast cells to drive production of Th2 cytokines including IL-5 and IL-13. IL-33 signaling activity through transmembrane ST2L can be inhibited by soluble ST2 (sST2), which acts as a decoy receptor. Previous findings suggested that modulation of IL-13 levels in mice lacking decoy IL-13Rα2, or mice lacking IL-13, impacted responsiveness to IL-33. In this study, we used Il13 -/- mice to investigate whether IL-13 regulates IL-33 activity by modulating the transmembrane and soluble forms of ST2. In Il13 -/- mice, the effects of IL-33 administration were exacerbated relative to wild type (WT). Il13 -/- mice administered IL-33 i.p. had heightened splenomegaly, more immune cells in the peritoneum including an expanded ST2L+ ILC2 population, increased eosinophilia in the spleen and peritoneum, and reduced sST2 in the circulation and peritoneum. In the spleen, lung, and liver of mice given IL-33, gene expression of both isoforms of ST2 was increased in Il13 -/- mice relative to WT. We confirmed fibroblasts to be an IL-13-responsive cell type that can regulate IL-33 activity through production of sST2. This study elucidates the important regulatory activity that IL-13 exerts on IL-33 through induction of IL-33 decoy receptor sST2 and through modulation of ST2L+ ILC2s.
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Affiliation(s)
- Melvin Zhang
- Inflammation and Immunology Research Unit, Pfizer, Inc., Cambridge, MA
| | - Jennifer L Duffen
- Inflammation and Immunology Research Unit, Pfizer, Inc., Cambridge, MA
| | - Karl H Nocka
- Inflammation and Immunology Research Unit, Pfizer, Inc., Cambridge, MA
| | - Marion T Kasaian
- Inflammation and Immunology Research Unit, Pfizer, Inc., Cambridge, MA
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10
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Yan C, Ying J, Lu W, Changzhi Y, Qihong Q, Jingzhu M, Dongjie S, Tingting Z. MiR-1294 suppresses ROS-dependent inflammatory response in atopic dermatitis via restraining STAT3/NF-κB pathway. Cell Immunol 2021; 371:104452. [PMID: 34784561 DOI: 10.1016/j.cellimm.2021.104452] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 12/12/2022]
Abstract
Atopic dermatitis (AD) is a common inflammatory skin disorder that affects children and adults. Despite the pathology of AD involves in immune dysfunction and epidermal barrier function destruction has been found, the mechanism of immune activation and barrier damage remain largely unknown. In the present study, The TNF-α/IFN-γ-stimulated HaCaTs, organotypic AD-like 3D skin equivalents and AD-like mouse model were constructed. The mRNA, histological morphology, protein levels, cytokines were detected by real-time quantitative polymerasechain reaction (RT-qPCR), hematoxylin and eosin (H & E) staining, Immunohistochemistry (IHC), immunoblotting, immunofluorescence (IF) staining, and enzyme linked immunosorbent assay (ELISA), respectively. Cell viability, cell cycle, and apoptosis were respectively calculated using a Methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay and flow cytometry. A dual-luciferase reporter gene system was used to investigate the relationship between miR-1294 and STAT3. Compared with the control group, the expression of miR-1294 decreased in TNF-α/IFN-γ-stimulated HaCaTs (P < 0.001), AD-like skin model, and AD-like mouse model (P < 0.001). Moreover, STAT3 was documented as a direct target of miR-1294. Inflammation (P < 0.05) and epidermal barrier function destruction (P < 0.05) in AD was suppressed by overexpression of miR-1294 but enhanced by STAT3 upregulation and its downstream NF-κB pathway. We also found miR-1294 upregulation inhibited inflammation and epidermal barrier function destruction via targeting STAT3 to suppress NF-κB pathway activation in AD.
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Affiliation(s)
- Chen Yan
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jiang Ying
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Wang Lu
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Yang Changzhi
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Qian Qihong
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Mao Jingzhu
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Sun Dongjie
- Department of Dermatology, The first affiliated hospital of Kunming Medical University, No.295 Xichang Rd, Kunming, Yunnan 650032, China.
| | - Zhu Tingting
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China.
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11
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Nomura T, Kabashima K. Advances in Atopic Dermatitis in 2019-2020: Endotypes from skin barrier, ethnicity, properties of antigen, cytokine profiles, microbiome, and engagement of immune cells. J Allergy Clin Immunol 2021; 148:1451-1462. [PMID: 34756922 DOI: 10.1016/j.jaci.2021.10.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022]
Abstract
Key research advances in atopic dermatitis (AD) suggest the complexity of its endotypes. A comprehensive serum biomarker panel revealed at least four types of AD. Some represent classic TH2-dominant AD with filaggrin mutations commonly reported in Europeans, a simultaneously activated multipolar axes of cytokines often reported in Asians, and an intrinsic type characterized by TH2-inferiority. Innate lymphoid cells, including NK cells, NKT cells, and fibroblasts, play a role in AD development and heterogeneity. Here, we discuss the endotypes of AD from the perspective of antigen types (hapten vs. protein antigens), barrier function, and a novel set of immune cells. Endotypic stratification of AD may lead to the development of customized therapeutic strategies in the future.
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Affiliation(s)
- Takashi Nomura
- Department of Dermatology, Faculty of Medicine, Kyoto University 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Kenji Kabashima
- Department of Dermatology, Faculty of Medicine, Kyoto University 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
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12
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Abstract
BACKGROUND Atopic dermatitis (AD) in the elderly has been poorly investigated, although its incidence is gradually increasing mainly in industrialized countries. Age-specific factors in older patients must be considered when selecting treatment options. OBJECTIVES To evaluate the efficacy and tolerability of dupilumab in treating elderly patients with severe AD. METHODS This was a retrospective, multicenter study involving 26 elderly patients (age, ≥65 years) with severe AD who were treated with dupilumab for at least 16 weeks. Absolute and percentage frequencies were used to evaluate qualitative variables and mean and SD for quantitative ones. For Eczema Area and Severity Index (EASI), Pruritus Numeric Rating Scale (NRS), and Dermatology Life Quality Index (DLQI), the median was also calculated. Wilcoxon test was used to evaluate the variations in EASI, Pruritus NRS, and DLQI observed between the 2 examinations. RESULTS After 4 months of therapy, the majority of patients showed a significant improvement in EASI (64.4%), Pruritus NRS (58.2%), and DLQI (44.9%). Only 11% of patients reported mild or moderate conjunctivitis. CONCLUSIONS To the best of our knowledge, this is the first study concerning the use of dupilumab in the elderly with severe AD. Our data show the effectiveness of dupilumab in this particular population with a lower percentage of conjunctivitis than observed in studies on adults and also excellent control of itching. Only larger, controlled case studies will be able to clarify whether the dosage or frequency of administration of dupilumab in these patients should be different from the protocol used for adults.
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13
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Bieber T. Atopic dermatitis: an expanding therapeutic pipeline for a complex disease. Nat Rev Drug Discov 2021; 21:21-40. [PMID: 34417579 PMCID: PMC8377708 DOI: 10.1038/s41573-021-00266-6] [Citation(s) in RCA: 232] [Impact Index Per Article: 77.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2021] [Indexed: 02/07/2023]
Abstract
Atopic dermatitis (AD) is a common chronic inflammatory skin disease with a complex pathophysiology that underlies a wide spectrum of clinical phenotypes. AD remains challenging to treat owing to the limited response to available therapies. However, recent advances in understanding of disease mechanisms have led to the discovery of novel potential therapeutic targets and drug candidates. In addition to regulatory approval for the IL-4Ra inhibitor dupilumab, the anti-IL-13 inhibitor tralokinumab and the JAK1/2 inhibitor baricitinib in Europe, there are now more than 70 new compounds in development. This Review assesses the various strategies and novel agents currently being investigated for AD and highlights the potential for a precision medicine approach to enable prevention and more effective long-term control of this complex disease. Recent advances in understanding of the complex phenotype and mechanisms underlying atopic dermatitis (AD) have revealed multiple new potential targets for pharmacological intervention. Here, Bieber reviews therapeutic strategies and assesses the expanding pipeline for the therapy of AD, highlighting the potential for a precision medicine approach to the management of this complex disorder.
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Affiliation(s)
- Thomas Bieber
- Department of Dermatology and Allergy, University Hospital, Bonn, Germany. .,Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland. .,Davos Biosciences, Davos, Switzerland.
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14
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Meng J, Li Y, Fischer MJM, Steinhoff M, Chen W, Wang J. Th2 Modulation of Transient Receptor Potential Channels: An Unmet Therapeutic Intervention for Atopic Dermatitis. Front Immunol 2021; 12:696784. [PMID: 34276687 PMCID: PMC8278285 DOI: 10.3389/fimmu.2021.696784] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Atopic dermatitis (AD) is a multifaceted, chronic relapsing inflammatory skin disease that affects people of all ages. It is characterized by chronic eczema, constant pruritus, and severe discomfort. AD often progresses from mild annoyance to intractable pruritic inflammatory lesions associated with exacerbated skin sensitivity. The T helper-2 (Th2) response is mainly linked to the acute and subacute phase, whereas Th1 response has been associated in addition with the chronic phase. IL-17, IL-22, TSLP, and IL-31 also play a role in AD. Transient receptor potential (TRP) cation channels play a significant role in neuroinflammation, itch and pain, indicating neuroimmune circuits in AD. However, the Th2-driven cutaneous sensitization of TRP channels is underappreciated. Emerging findings suggest that critical Th2-related cytokines cause potentiation of TRP channels, thereby exaggerating inflammation and itch sensation. Evidence involves the following: (i) IL-13 enhances TRPV1 and TRPA1 transcription levels; (ii) IL-31 sensitizes TRPV1 via transcriptional and channel modulation, and indirectly modulates TRPV3 in keratinocytes; (iii) The Th2-cytokine TSLP increases TRPA1 synthesis in sensory neurons. These changes could be further enhanced by other Th2 cytokines, including IL-4, IL-25, and IL-33, which are inducers for IL-13, IL-31, or TSLP in skin. Taken together, this review highlights that Th2 cytokines potentiate TRP channels through diverse mechanisms under different inflammatory and pruritic conditions, and link this effect to distinct signaling cascades in AD. This review strengthens the notion that interrupting Th2-driven modulation of TRP channels will inhibit transition from acute to chronic AD, thereby aiding the development of effective therapeutics and treatment optimization.
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Affiliation(s)
- Jianghui Meng
- School of Life Sciences, Henan University, Kaifeng, China.,National Institute for Cellular Biotechnology, Dublin City University, Dublin, Ireland
| | - Yanqing Li
- School of Life Sciences, Henan University, Kaifeng, China
| | - Michael J M Fischer
- Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Martin Steinhoff
- Department of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar.,Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar.,Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar.,Department of Dermatology, Weill Cornell Medicine-Qatar, Doha, Qatar.,Qatar University, College of Medicine, Doha, Qatar.,Department of Dermatology, Weill Cornell Medicine, New York, NY, United States
| | - Weiwei Chen
- School of Life Sciences, Henan University, Kaifeng, China
| | - Jiafu Wang
- School of Life Sciences, Henan University, Kaifeng, China.,School of Biotechnology, Faculty of Science and Health, Dublin City University, Dublin, Ireland
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15
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Qi HJ, Li LF. New Biologics for the Treatment of Atopic Dermatitis: Analysis of Efficacy, Safety, and Paradoxical Atopic Dermatitis Acceleration. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5528372. [PMID: 34195265 PMCID: PMC8181104 DOI: 10.1155/2021/5528372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/21/2021] [Indexed: 01/18/2023]
Abstract
Atopic dermatitis (AD) is a chronic, inflammatory skin disease with an eczematous rash and itching. Due to undesired adverse effects of traditional systemic treatment, there is still an unmet need for safe and effective long-term therapy for refractory AD. As our understanding of the pathogenesis underlying AD grows, novel treatments targeting specific molecules have been developed. Here, we discuss the efficacy and safety profiles of these drugs in recent clinical trials. Among their adverse effects, of particular note is AD acceleration. Although there is still debate about whether certain adverse reactions can be said to be paradoxical adverse events (PAEs), a wide range of PAEs have been reported during biological treatment for chronic immune-mediated diseases. Close surveillance of novel biologics is crucial to detect new undescribed paradoxical reactions and to shed light on the convoluted pathogenesis of AD.
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Affiliation(s)
- Hong-jiao Qi
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lin-Feng Li
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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16
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Barbosa AI, Torres T, Lima SAC, Reis S. Hydrogels: A Promising Vehicle for the Topical Management of Atopic Dermatitis. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202100028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ana Isabel Barbosa
- LAQV REQUIMTE Departamento de Ciências Químicas Faculdade de Farmácia Universidade do Porto Rua de Jorge Viterbo Ferreira, 228 Porto 4050‐313 Portugal
| | - Tiago Torres
- Serviço de Dermatologia do Centro Hospitalar e Universitário do Porto Instituto de Ciências Biomédicas de Abel Salazar Universidade do Porto Rua D. Manuel II, s/n Porto 4099‐001 Portugal
| | - Sofia A. Costa Lima
- LAQV REQUIMTE Departamento de Ciências Químicas Faculdade de Farmácia Universidade do Porto Rua de Jorge Viterbo Ferreira, 228 Porto 4050‐313 Portugal
| | - Salette Reis
- LAQV REQUIMTE Departamento de Ciências Químicas Faculdade de Farmácia Universidade do Porto Rua de Jorge Viterbo Ferreira, 228 Porto 4050‐313 Portugal
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17
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Molecular Mechanisms of Atopic Dermatitis Pathogenesis. Int J Mol Sci 2021; 22:ijms22084130. [PMID: 33923629 PMCID: PMC8074061 DOI: 10.3390/ijms22084130] [Citation(s) in RCA: 163] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 12/14/2022] Open
Abstract
Atopic dermatitis is a chronic, non-infectious inflammatory dermatosis. Acharacteristic feature is persistent itching of the skin. The chronic, relapsing course of the disease, economic burden, and the whole family’s involvement in the treatment process immensely reduce the quality of life of patients and their families. The disease emerges as a social problem by increasing indirect costs, such as visiting a doctor, absenteeism from work and school, and avoiding social interactions. Thepathophysiology of atopic dermatitis is complex and multifactorial. It includes genetic disorders, a defect in the epidermal barrier, an altered immune response, anddisruption of the skin’s microbial balance. The numerous complex changes at thegenetic level and innate and adaptive immunity provide the basis for characterizing the various phenotypes and endotypes of atopic dermatitis. Emerging therapies rely on the action of specific molecules involved in the disease’s pathogenesis. It may be the starting point for the individualization of atopic dermatitis treatment. This paper will try to present some molecular mechanisms of atopic dermatitis and their clinical implications.
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18
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Gonçalves F, Freitas E, Torres T. Selective IL-13 inhibitors for the treatment of atopic dermatitis. Drugs Context 2021; 10:dic-2021-1-7. [PMID: 33889195 PMCID: PMC8015935 DOI: 10.7573/dic.2021-1-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 02/26/2021] [Indexed: 12/19/2022] Open
Abstract
Background Atopic dermatitis (AD) is one of the most common chronic inflammatory skin diseases worldwide. AD pathogenesis is multifactorial, involving environmental and genetic factors. IL-13 stands out as one of the main cytokines in the pathophysiology of AD. Currently, dupilumab, which targets both IL-4 and IL-13 signalling, is the only biologic agent approved for the treatment of moderate-to-severe AD. New targeted biologic therapies are being developed, such as lebrikizumab and tralokinumab, two selective IL-13 inhibitors. This article reviews the role of IL-13 in AD and the most recent data on lebrikizumab and tralokinumab. Methods A narrative review of the literature was written after retrieving relevant articles in the PubMed database (up until December 2020) using the following keywords present in the title, abstract or body: atopic dermatitis; interleukin 13; IL-13; tralokinumab; lebrikizumab, biologic therapy. Discussion A phase IIb trial showed that all three dosing regimens evaluated (lebrikizumab 125 mg every 4 weeks (Q4W), 250 mg Q4W or 250 mg every 2 weeks) achieved rapid and dose-dependent efficacy concerning the signs and symptoms of AD, with a statistically significant improvement, at week 16. Tralokinumab was studied in three phase III clinical trials and reached its primary endpoints at week 16 (ECZTRA 1 and 2 in monotherapy and ECZTRA 3 with concomitant topical corticosteroids), with response maintained over time. Both lebrikizumab and tralokinumab exhibited good safety profiles in AD trials, with adverse effects usually being comparable between the control and treatment groups. Conclusion The evidence supports the hypothesis that selective antagonism of IL-13 is sufficient to control AD, providing an improvement in the patient’s quality of life. Therefore, the development of lebrikizumab and tralokinumab represents a new and exciting phase in the management of AD.
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Affiliation(s)
- Francisca Gonçalves
- Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Egídio Freitas
- Department of Dermatology, Centro Hospitalar do Porto, Porto, Portugal
| | - Tiago Torres
- Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal.,Department of Dermatology, Centro Hospitalar do Porto, Porto, Portugal.,Dermatology Research Unit, Centro Hospitalar do Porto, Porto, Portugal
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19
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Foo HL, Tey HL. A clinico-pathological approach to management of atopic dermatitis. ANNALS OF THE ACADEMY OF MEDICINE, SINGAPORE 2021; 50:171-173. [PMID: 33733260 DOI: 10.47102/annals-acadmedsg.2020144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recent research in atopic dermatitis (AD) has identified it to be a heterogeneous inflammatory skin disorder of different endotypes (immune polarisation of T-cell subsets and genetic mutations) underlying various phenotypes (age of onset, ethnicity, disease severity, etc.). The corresponding heterogeneity in underlying patho-mechanisms of the disease has resulted in an impetus towards an endotype-driven management of AD. We propose a practical approach that is based on classifying AD patients into intrinsic and extrinsic phenotypes and their corresponding underlying endotypes. This approach aims to provide a practical method that integrates recent understanding of AD pathogenesis for a targeted endotype-driven management of AD.
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20
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Abstract
Atopic dermatitis (AD) is a prevalent inflammatory skin disease. IL-13 contributes significantly to the pathogenesis of AD in several ways, and beneficial results have been demonstrated with anti-IL-13 therapies. Currently, the only monoclonal antibody (mAb) approved for AD treatment is dupilumab, an antagonist of the IL-4 receptor alpha (IL-4Rα) subunit common to IL-4 and IL-13 receptors, but clinical trials evaluating anti-IL-13 mAbs are providing promising results. The topics of this review will be mAbs targeting IL-13 for the treatment of AD such as dupilumab, tralokinumab and lebrikizumab, small molecules targeting the IL-13 pathway, and a brief explanation of therapies targeting IL-13 for the treatment of other skin diseases.
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Affiliation(s)
- Carla Tubau
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona Mas Casanovas 90, Barcelona 08041, Spain
| | - Lluís Puig
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona Mas Casanovas 90, Barcelona 08041, Spain
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21
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Pavel AB, Renert‐Yuval Y, Wu J, Del Duca E, Diaz A, Lefferdink R, Fang MM, Canter T, Rangel SM, Zhang N, Krueger JG, Paller AS, Guttman‐Yassky E. Tape strips from early-onset pediatric atopic dermatitis highlight disease abnormalities in nonlesional skin. Allergy 2021; 76:314-325. [PMID: 32639640 DOI: 10.1111/all.14490] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Skin biopsies promote our understanding of atopic dermatitis/AD pathomechanisms in infants/toddlers with early-onset AD, but are not feasible in pediatric populations. Tape strips are an emerging, minimally invasive alternative, but global transcriptomic profiling in early pediatric AD is lacking. We aimed to provide global lesional and nonlesional skin profiles of infants/toddlers with recent-onset, moderate-to-severe AD using tape strips. METHODS Sixteen tape strips were collected for RNA-seq profiling from 19 infants/toddlers (<5 years old; lesional and nonlesional) with early-onset moderate-to-severe AD (≤6 months) and 17 healthy controls. RESULTS We identified 1829 differentially expressed genes/DEGs in lesional AD and 662 DEGs in nonlesional AD, vs healthy skin (fold-change ≥2, FDR <0.05), with 100% sample recovery. Both lesional and nonlesional skin showed significant dysregulations of Th2 (CCL17 and IL4R) and Th22/Th17 (IL36G, CCL20, and S100As)-related genes, largely lacking significant Th1-skewing. Significant down-regulation of terminal differentiation (FLG and FLG2), lipid synthesis/metabolism (ELOVL3 and FA2H), and tight junction (CLDN8) genes were primarily seen in lesional AD. Significant negative correlations were identified between Th2 measures and epidermal barrier gene-subsets and individual genes (FLG with IL-4R and CCL17; r < -0.4, P < .05). Significant correlations were also identified between clinical measures (body surface area/BSA, pruritus ADQ, and transepidermal water loss/TEWL) with immune and barrier mRNAs in lesional and/or nonlesional AD (FLG/FLG2 with TEWL; r < -0.4, P < .05). CONCLUSION RNA-seq profiling using tape strips in early-onset pediatric AD captures immune and barrier alterations in both lesional and nonlesional skin. Tape strips provide insight into disease pathomechanisms and cutaneous disease activity.
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Affiliation(s)
- Ana B. Pavel
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
- Department of Biomedical Engineering University of Mississippi MS USA
| | - Yael Renert‐Yuval
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
| | - Jianni Wu
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
- College of Medicine State University of New York Downstate Medical Center Brooklyn NY USA
| | - Ester Del Duca
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
- Department of Dermatology University of Rome Tor Vergata Rome Italy
| | - Aisleen Diaz
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
- Ponce Health Sciences University School of Medicine Ponce PR USA
| | - Rachel Lefferdink
- Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA
| | - Milie M. Fang
- Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA
| | - Talia Canter
- Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA
| | | | - Ning Zhang
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
| | - James G. Krueger
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
| | - Amy S. Paller
- Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA
| | - Emma Guttman‐Yassky
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
- Laboratory for Investigative Dermatology The Rockefeller University New York NY USA
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22
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Tubau C, Puig L. Therapeutic targeting of the IL-13 pathway in skin inflammation. Expert Rev Clin Immunol 2020; 17:15-25. [PMID: 33275064 DOI: 10.1080/1744666x.2020.1858802] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Introduction: Atopic dermatitis (AD) is a heterogeneous, chronic, inflammatory skin disease with a non-negligible prevalence at present. Its pathogenesis is complex, but mainly characterized by constitutive T helper type 2 (Th2)-cell activation. Systemic therapies for moderate-to-severe AD can be associated with adverse events that encumber their satisfactory long-term use. Several drugs targeting relevant molecules in the immunopathogenesis of AD have been approved or are under clinical development for the treatment of moderate to severe AD. To elaborate this review, literature searches were performed in PubMed on 29 August 2020.Areas covered: This narrative literature review is focused on the pivotal role of IL-13 in the immunopathogenesis of AD and other skin diseases.Expert opinion: Dupilumab has demonstrated the central role of IL-13 and IL-4 in the pathogenesis of AD, asthma, and other diseases in the atopic spectrum. In addition, phase III randomized clinical trials (RCTs) evaluating specific blockade of IL-13 with tralokinumab for treatment of AD also demonstrated favorable results, and phase III RCT evaluating lebrikizumab are ongoing. The role of IL-13 in other skin diseases should be further investigated.
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Affiliation(s)
- Carla Tubau
- Dermatology Department, Hospital De La Santa Creu I Sant Pau, Universitat Autònoma De Barcelona, Barcelona, Spain
| | - Lluís Puig
- Dermatology Department, Hospital De La Santa Creu I Sant Pau, Universitat Autònoma De Barcelona, Barcelona, Spain
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Wu J, Del Duca E, Espino M, Gontzes A, Cueto I, Zhang N, Estrada YD, Pavel AB, Krueger JG, Guttman-Yassky E. RNA Sequencing Keloid Transcriptome Associates Keloids With Th2, Th1, Th17/Th22, and JAK3-Skewing. Front Immunol 2020; 11:597741. [PMID: 33329590 PMCID: PMC7719808 DOI: 10.3389/fimmu.2020.597741] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/19/2020] [Indexed: 12/23/2022] Open
Abstract
Keloids are disfiguring, fibroproliferative growths and their pathogenesis remains unclear, inhibiting therapeutic development. Available treatment options have limited efficacy and harbor safety concerns. Thus, there is a great need to clarify keloid pathomechanisms that may lead to novel treatments. In this study, we aimed to elucidate the profile of lesional and non-lesional keloid skin compared to normal skin. We performed gene (RNAseq, qRT-PCR) and protein (immunohistochemistry) expression analyses on biopsy specimens obtained from lesional and non-lesional skin of African American (AA) keloid patients compared to healthy skin from AA controls. Fold-change≥2 and false-discovery rate (FDR)<0.05 was used to define significance. We found that lesional versus normal skin showed significant up-regulation of markers of T-cell activation/migration (ICOS, CCR7), Th2- (IL-4R, CCL11, TNFSF4/OX40L), Th1- (CXCL9/CXCL10/CXCL11), Th17/Th22- (CCL20, S100As) pathways, and JAK/STAT-signaling (JAK3) (false-discovery rate [FDR]<0.05). Non-lesional skin also exhibited similar trends. We observed increased cellular infiltrates in keloid tissues, including T-cells, dendritic cells, mast cells, as well as greater IL-4rα+, CCR9+, and periostin+ immunostaining. In sum, comprehensive molecular profiling demonstrated that both lesional and non-lesional skin show significant immune alternations, and particularly Th2 and JAK3 expression. This advocates for the investigation of novel treatments targeting the Th2 axis and/or JAK/STAT-signaling in keloid patients.
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Affiliation(s)
- Jianni Wu
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- College of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, United States
| | - Ester Del Duca
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Dermatology, University of Rome Tor Vergata, Rome, Italy
| | - Michael Espino
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Alyssa Gontzes
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Inna Cueto
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, United States
| | - Ning Zhang
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Yeriel D. Estrada
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ana B. Pavel
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Biomedical Engineering, University of Mississippi, Oxford, MS, United States
| | - James G. Krueger
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, United States
| | - Emma Guttman-Yassky
- Laboratory of Inflammatory Skin Diseases, Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Laboratory for Investigative Dermatology, The Rockefeller University, New York, NY, United States
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Falduto GH, Pfeiffer A, Luker A, Metcalfe DD, Olivera A. Emerging mechanisms contributing to mast cell-mediated pathophysiology with therapeutic implications. Pharmacol Ther 2020; 220:107718. [PMID: 33130192 DOI: 10.1016/j.pharmthera.2020.107718] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023]
Abstract
Mast cells are tissue-resident immune cells that play key roles in the initiation and perpetuation of allergic inflammation, usually through IgE-mediated mechanisms. Mast cells are, however, evolutionary ancient immune cells that can be traced back to urochordates and before the emergence of IgE antibodies, suggesting their involvement in antibody-independent biological functions, many of which are still being characterized. Herein, we summarize recent advances in understanding the roles of mast cells in health and disease, partly through the study of emerging non-IgE receptors such as the Mas-related G protein-coupled receptor X2, implicated in pseudo-allergic reactions as well as in innate defense and neuronal sensing; the mechano-sensing adhesion G protein-coupled receptor E2, variants of which are associated with familial vibratory urticaria; and purinergic receptors, which orchestrate tissue damage responses similarly to the IL-33 receptor. Recent evidence also points toward novel mechanisms that contribute to mast cell-mediated pathophysiology. Thus, in addition to releasing preformed mediators contained in granules and synthesizing mediators de novo, mast cells also secrete extracellular vesicles, which convey biological functions. Understanding their release, composition and uptake within a variety of clinical conditions will contribute to the understanding of disease specific pathology and likely lead the way to novel therapeutic approaches. We also discuss recent advances in the development of therapies targeting mast cell activity, including the ligation of inhibitory ITIM-containing receptors, and other strategies that suppress mast cells or responses to mediators for the management of mast cell-related diseases.
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Affiliation(s)
- Guido H Falduto
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Annika Pfeiffer
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Andrea Luker
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Dean D Metcalfe
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ana Olivera
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
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Arzneitherapie des chronischen Pruritus – Licht am Ende des langen Tunnels? Internist (Berl) 2020; 61:1076-1086. [DOI: 10.1007/s00108-020-00837-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Moderne systemische Therapie des Pruritus. Hautarzt 2020; 71:518-524. [DOI: 10.1007/s00105-020-04604-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Implication of T Helper Cytokines in Contact Dermatitis and Atopic Dermatitis. CURRENT TREATMENT OPTIONS IN ALLERGY 2020. [DOI: 10.1007/s40521-020-00263-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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