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MicroRNA-181a and microRNA-155 are involved in the regulation of the differentiation and function of regulatory T cells in allergic rhinitis children.
- Source :
-
Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology [Pediatr Allergy Immunol] 2019 Jun; Vol. 30 (4), pp. 434-442. Date of Electronic Publication: 2019 Feb 27. - Publication Year :
- 2019
-
Abstract
- Background: Regulatory T cells (Tregs) play central roles in limiting airway allergic inflammation and preventing inappropriate Th2 responses to environmental allergens. This study aims to evaluate the role of miR-181a and miR-155 in the regulation of the differentiation and function of Tregs through both in vivo and in vitro studies.<br />Methods: The CD4 <superscript>+</superscript> T cells and Tregs were purified from peripheral blood mononuclear cells (PBMCs) in allergic rhinitis (AR) children, respectively. The miR-155/181a mimics and inhibitors were transfected into CD4 <superscript>+</superscript> T cells and Tregs. The differentiation and function of Tregs were evaluated by flow cytometry and enzyme-linked immunosorbent assay. AR mice models were established, and miR-155/181a mimics or inhibitors were injected through tail vein. The Treg percentage and function from mice were compared among different groups.<br />Results: The miR-181a up-regulated the release of interleukin (IL)-10 and TGF-β, whereas the miR-155 promoted Treg differentiation in CD4 <superscript>+</superscript> T cells. Similarly, we also found that miR-155 promoted Treg proliferation directly through suppressor of cytokine signaling 1 (SOCS1) and sirtuin1 (SIRT1) signaling pathway, whereas miR-181a up-regulated mRNA expression of IL-10 and TGF-β through phosphatidylinositol 3-OH kinase (PI3K)/Akt pathway. We also found that miR-155/181a affect Treg percentage and function in mice model.<br />Conclusion: Our findings suggest that miR-181a and miR-155 were closely correlated with the proliferation and function of Tregs in AR, providing new potential treatment target.<br /> (© 2019 EAACI and John Wiley and Sons A/S. Published by John Wiley and Sons Ltd.)
- Subjects :
- Animals
Cell Differentiation
Cell Proliferation
Cells, Cultured
Child
Female
Humans
Immune Tolerance
Interleukin-10 metabolism
Male
Mice
Mice, Inbred C57BL
Rhinitis, Allergic immunology
Signal Transduction
Transforming Growth Factor beta metabolism
MicroRNAs genetics
Rhinitis, Allergic genetics
T-Lymphocytes, Regulatory immunology
Subjects
Details
- Language :
- English
- ISSN :
- 1399-3038
- Volume :
- 30
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology
- Publication Type :
- Academic Journal
- Accession number :
- 30734973
- Full Text :
- https://doi.org/10.1111/pai.13038