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Updated: Jan 21, 2026

Author Spotlight: Advancing Allergic Rhinitis Research with Multicolor Immunofluorescence
Published on: September 22, 2023
MiR-146a mimic attenuates murine allergic rhinitis by downregulating TLR4/TRAF6/NF-κB pathway
Jia Wang1, Zheqing Cui1, Lei Liu1
1Department of Rhinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
Abstract:
Aim: This study aims to investigate whether microRNA (miR)-146a exerts therapeutic potential to allergic rhinitis (AR). Methods: Female BALB/c mice were randomly divided into the AR and miR-146a groups. miR-146a was administered into the nostril before ovalbumin (OVA) challenge daily on days 21-28. Results: The expression level of miR-146a in AR nasal mucosa was significantly decreased. miR-146a mimic markedly attenuated sneezing and nasal rubbing events, decreased the levels of ovalbumin-specific IgE as well as mastocyte- and basophil-related inflammatory cytokines, reduced inflammatory cells, affected the T-helper 2-released cytokines. Furthermore, miR-146a mimic inhibited the expressions of proteins relevant to Toll-like receptor 4 (TLR4)/TRAF6/NF-κB signaling pathway. Conclusion: The anti-inflammatory effects of miR-146a on AR might exert through the inhibition of the toll-like receptor 4 (TLR4)/TRAF6/NF-κB signaling pathway to some extent.
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