ArticleImmunity, inflammation and disease2024
The Immunosuppressive Functions of Eosinophils Are Compromised in Patients With Allergic Rhinitis, Particularly Concerning Rab27a Expression.
Article in Immunity, inflammation and disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Mechanisms of Eosinophil Degranulation.Cells · 2026Review
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8 authors.
Funding
Abstract
backgroundEosinophils have been acknowledged to be involved in the induction of numerous inflammatory disorders. There is still a lack of knowledge about whether eosinophils play a role in immune regulation. The aim of this study is to uncover the immune regulatory functions of eosinophils.
methodsBlood samples were collected from patients with allergic rhinitis (AR) and healthy control subjects. Peripheral blood mononuclear cells (PBMCs) were isolated from blood samples. Eosinophils were purified from PBMCs using flow cytometry cell sorting and analyzed using immunological approaches.
resultsThe results showed that eosinophils from healthy subjects had immune regulatory functions on T cell proliferation and cytokine release. Impairment of eosinophil immune regulatory functions was found in AR patients, which was associated with AR responses. Elevated Rab27a expression in eosinophils was associated with their impaired immune regulatory functions and the increased AR responses. Rab27a controlled the release of mediators from eosinophils. Low concentrations of Eosinophil mediators could trigger immune regulatory responses, while high concentrations could trigger inflammatory responses. Regulating Rab27a restored the immune regulatory functions of eosinophils of AR patients.
conclusionsEosinophils have immune regulatory functions, which are controlled by the expression of Rab27a. Regulation of Rab27a can improve the immune regulatory functions of eosinophils. The data suggest that inhibition of Rab27a can be a drug candidate for the treatment of eosinophil-related disorders.
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