Carina Malmhäll, Jenny Calvén, Julie Weidner, Kristina Johansson, Patricia Ramos-Ramírez, Emma Boberg, Linda Ekerljung, Roxana Mincheva, Bright Nwaru, Hannu Kankaanranta, Henric Olsson, Christopher McCrae, Madeleine Rådinger
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Type 2 innate lymphoid cells (ILC2s), T helper (Th)2 cells and their expression of IL-33R/ST2 (ST2L) were evaluated by flow cytometry. IL-13, thymic stromal lymphopoietin (TSLP), IL-33 and soluble IL-33R/ST2 (sST2) were measured by ELISA. Let-7 miRNA expression in bronchial biopsies was determined by qPCR.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Females with asthma reported more exacerbations and had a higher number of airway eosinophils compared with males with asthma. Bronchial biopsy expression of Let-7f, Let-7g and miR-98 tended to be higher in males with asthma compared with females and inversely correlated with asthma exacerbations. In contrast, increased levels of IL-13, TSLP and sST2 were found in females with asthma compared with males.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>Our study demonstrates different inflammatory signatures between males and females with asthma. Let-7 miRNAs act as immune modulators by inhibiting the production of IL-13 and may be an important factor explaining the sex disparity seen in asthma.</p>\n </section>\n </div>","PeriodicalId":10334,"journal":{"name":"Clinical and Translational Allergy","volume":"15 3","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/clt2.70042","citationCount":"0","resultStr":"{\"title\":\"Sex disparity in adult asthma—A potential immunomodulatory role of let-7 family microRNAs\",\"authors\":\"Carina Malmhäll, Jenny Calvén, Julie Weidner, Kristina Johansson, Patricia Ramos-Ramírez, Emma Boberg, Linda Ekerljung, Roxana Mincheva, Bright Nwaru, Hannu Kankaanranta, Henric Olsson, Christopher McCrae, Madeleine Rådinger\",\"doi\":\"10.1002/clt2.70042\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Background</h3>\\n \\n <p>Sex differences have been reported in the incidence, prevalence and severity of asthma. Previous findings from animal models have revealed sex-related differences in inflammatory pathways that may contribute to asthma pathogenesis, but human studies are limited.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>Airway and blood samples (<i>n</i> = 55 and <i>n</i> = 85 respectively) were collected from adult females and males with asthma and healthy subjects. Type 2 innate lymphoid cells (ILC2s), T helper (Th)2 cells and their expression of IL-33R/ST2 (ST2L) were evaluated by flow cytometry. IL-13, thymic stromal lymphopoietin (TSLP), IL-33 and soluble IL-33R/ST2 (sST2) were measured by ELISA. Let-7 miRNA expression in bronchial biopsies was determined by qPCR.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>Females with asthma reported more exacerbations and had a higher number of airway eosinophils compared with males with asthma. Bronchial biopsy expression of Let-7f, Let-7g and miR-98 tended to be higher in males with asthma compared with females and inversely correlated with asthma exacerbations. In contrast, increased levels of IL-13, TSLP and sST2 were found in females with asthma compared with males.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusion</h3>\\n \\n <p>Our study demonstrates different inflammatory signatures between males and females with asthma. Let-7 miRNAs act as immune modulators by inhibiting the production of IL-13 and may be an important factor explaining the sex disparity seen in asthma.</p>\\n </section>\\n </div>\",\"PeriodicalId\":10334,\"journal\":{\"name\":\"Clinical and Translational Allergy\",\"volume\":\"15 3\",\"pages\":\"\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-02-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/clt2.70042\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Clinical and Translational Allergy\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/clt2.70042\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ALLERGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical and Translational Allergy","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/clt2.70042","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ALLERGY","Score":null,"Total":0}
Sex disparity in adult asthma—A potential immunomodulatory role of let-7 family microRNAs
Background
Sex differences have been reported in the incidence, prevalence and severity of asthma. Previous findings from animal models have revealed sex-related differences in inflammatory pathways that may contribute to asthma pathogenesis, but human studies are limited.
Methods
Airway and blood samples (n = 55 and n = 85 respectively) were collected from adult females and males with asthma and healthy subjects. Type 2 innate lymphoid cells (ILC2s), T helper (Th)2 cells and their expression of IL-33R/ST2 (ST2L) were evaluated by flow cytometry. IL-13, thymic stromal lymphopoietin (TSLP), IL-33 and soluble IL-33R/ST2 (sST2) were measured by ELISA. Let-7 miRNA expression in bronchial biopsies was determined by qPCR.
Results
Females with asthma reported more exacerbations and had a higher number of airway eosinophils compared with males with asthma. Bronchial biopsy expression of Let-7f, Let-7g and miR-98 tended to be higher in males with asthma compared with females and inversely correlated with asthma exacerbations. In contrast, increased levels of IL-13, TSLP and sST2 were found in females with asthma compared with males.
Conclusion
Our study demonstrates different inflammatory signatures between males and females with asthma. Let-7 miRNAs act as immune modulators by inhibiting the production of IL-13 and may be an important factor explaining the sex disparity seen in asthma.
期刊介绍：
Clinical and Translational Allergy, one of several journals in the portfolio of the European Academy of Allergy and Clinical Immunology, provides a platform for the dissemination of allergy research and reviews, as well as EAACI position papers, task force reports and guidelines, amongst an international scientific audience.
Clinical and Translational Allergy accepts clinical and translational research in the following areas and other related topics: asthma, rhinitis, rhinosinusitis, drug hypersensitivity, allergic conjunctivitis, allergic skin diseases, atopic eczema, urticaria, angioedema, venom hypersensitivity, anaphylaxis, food allergy, immunotherapy, immune modulators and biologics, animal models of allergic disease, immune mechanisms, or any other topic related to allergic disease.
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