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The Role of Epithelial-Derived Extracellular Vesicles in Allergic Sensitisation: A Systematic Review
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Journal Article
The Role of Epithelial-Derived Extracellular Vesicles in Allergic Sensitisation: A Systematic Review
2025
Overview
The aim of this systematic review was to evaluate the current evidence for the involvement of epithelial-derived extracellular vesicles (EVs) in Immunoglobulin E (IgE)-mediated allergic sensitisation. Original clinical and research studies specifically examining the effect of epithelial-derived EVs in IgE-mediated allergic sensitisation were included. Non-IgE mediated allergies, abstracts and review articles were excluded. A total of 18 publications were identified from three databases (EMBASE, Web of Science and PubMed) that indicate epithelial-derived EVs have the potential to promote tolerance or allergic sensitisation. For example, epithelial-derived EVs have the potential to promote IgE-mediated allergic sensitisation by delivering mRNAs that promote T helper 2 (Th2) polarisation and cytokine secretion, or promote tolerance through the induction of T regulatory (Treg) cells. The results also indicate that the potential role of epithelial-derived EVs in IgE-mediated allergic sensitisation may be dependent on the barrier, with all publications related to intestinal epithelium driving tolerance, but publications on nasal and bronchial/alveolar epithelia gaving mixed effects. No publications were found on cutaneous epithelia. Taken together, the literature suggests that epithelial-derived EVs play a key role in influencing IgE-mediated allergic sensitisation. Further research examining all epithelial barriers, using both robust human in vitro models that give more biologically relevant information, as well as clinical studies, are required to further characterise the role of epithelial-derived EVs in IgE-mediated allergic sensitisation.
Publisher
MDPI AG,MDPI
Subject
/ Allergy
/ Animals
/ Asthma
/ B cells
/ Epithelial Cells - immunology
/ Epithelial Cells - metabolism
/ Extracellular Vesicles - immunology
/ Extracellular Vesicles - metabolism
/ Humans
/ Hypersensitivity - immunology
/ Hypersensitivity - metabolism
/ Immunoglobulin E - immunology
/ Lavage
/ Review
/ Rhinitis
