{"title":"Microneedles in Allergy Immunotherapy: the Present and Future.","authors":"Yangxue Fu, Hao Chen, Jin Liu, Qingxiu Xu, Yaqi Yang, Yin Wang, Rongfei Zhu","doi":"10.1007/s11882-025-01227-4","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose of review: </strong>This review highlights current limitations of allergen-specific immunotherapy (AIT) methods and introduces microneedles (MNs) as an innovative transdermal platform to enhance AIT safety, efficacy, and patient adherence.</p><p><strong>Recent findings: </strong>Conventional approaches such as Subcutaneous immunotherapy (SCIT), Sublingual immunotherapy (SLIT), and Oral immunotherapy (OIT) have shown clinical effectiveness but face challenges including systemic adverse reactions, prolonged treatment durations, poor adherence. Meanwhile, Epidermal allergen-specific immunotherapy (EPIT) and other skin-targeted AIT approaches is constrained by the limited epidermal penetration of allergens. Recent preclinical studies demonstrate that MN-based transdermal immunotherapy (MN-TDIT) effectively delivers allergen directly into immune-rich dermal layers, significantly enhancing allergen-specific immune responses, inducing a regulatory T-cell response, modulating Th1/Th2 balance, and decreasing allergic inflammation in preclinical respiratory, skin, and food allergy models. MN-TDIT exhibits clear advantages over existing AIT strategies, including improved immunogenicity, fewer side effects, ease of administration, and potential for self-administration. Further research should focus on resolving formulation stability issues, optimizing controlled allergen release, and validating safety and efficacy in large-scale clinical trials, thus facilitating MNs as a transformative strategy for improving AIT outcomes.</p>","PeriodicalId":55198,"journal":{"name":"Current Allergy and Asthma Reports","volume":"25 1","pages":"46"},"PeriodicalIF":4.6000,"publicationDate":"2025-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Allergy and Asthma Reports","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s11882-025-01227-4","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ALLERGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose of review: This review highlights current limitations of allergen-specific immunotherapy (AIT) methods and introduces microneedles (MNs) as an innovative transdermal platform to enhance AIT safety, efficacy, and patient adherence.
Recent findings: Conventional approaches such as Subcutaneous immunotherapy (SCIT), Sublingual immunotherapy (SLIT), and Oral immunotherapy (OIT) have shown clinical effectiveness but face challenges including systemic adverse reactions, prolonged treatment durations, poor adherence. Meanwhile, Epidermal allergen-specific immunotherapy (EPIT) and other skin-targeted AIT approaches is constrained by the limited epidermal penetration of allergens. Recent preclinical studies demonstrate that MN-based transdermal immunotherapy (MN-TDIT) effectively delivers allergen directly into immune-rich dermal layers, significantly enhancing allergen-specific immune responses, inducing a regulatory T-cell response, modulating Th1/Th2 balance, and decreasing allergic inflammation in preclinical respiratory, skin, and food allergy models. MN-TDIT exhibits clear advantages over existing AIT strategies, including improved immunogenicity, fewer side effects, ease of administration, and potential for self-administration. Further research should focus on resolving formulation stability issues, optimizing controlled allergen release, and validating safety and efficacy in large-scale clinical trials, thus facilitating MNs as a transformative strategy for improving AIT outcomes.
期刊介绍:
The aim of Current Allergy and Asthma Reports is to systematically provide the views of highly selected experts on current advances in the fields of allergy and asthma and highlight the most important papers recently published. All reviews are intended to facilitate the understanding of new advances in science for better diagnosis, treatment, and prevention of allergy and asthma.
We accomplish this aim by appointing international experts in major subject areas across the discipline to review select topics emphasizing recent developments and highlighting important new papers and emerging concepts. We also provide commentaries from well-known figures in the field, and an Editorial Board of internationally diverse members suggests topics of special interest to their country/region and ensures that topics are current and include emerging research. Over a one- to two-year period, readers are updated on all the major advances in allergy and asthma.