کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2039358 | 1400967 | 2016 | 16 صفحه PDF | دانلود رایگان |
• Mex-3B induces IL-33 in the development of allergic airway inflammation
• Mex3b−/− mice develop less airway inflammation due to reduced induction of IL-33
• Mex-3B upregulates IL-33 expression by inhibiting miR-487b-3p-mediated repression
• Inhalation of an antisense oligo targeting Mex-3B suppresses airway inflammation
SummaryAllergic airway inflammation is one of the primary features of allergic asthma. Interleukin-33 (IL-33) is recognized as a key pro-inflammatory cytokine that mediates allergic airway inflammation, and its expression is elevated in this condition, but little is known about the regulatory mechanisms underlying IL-33 induction. Here, we show that the RNA binding protein Mex-3B plays a critical role in the induction of IL-33 in the development of allergic airway inflammation. We generated Mex3b−/− mice and found that they develop significantly less airway inflammation than wild-type mice due to reduced induction of IL-33. Furthermore, we show that Mex-3B directly upregulates IL-33 expression by inhibiting miR-487b-3p-mediated repression of IL-33. Moreover, we show that inhalation of an antisense oligonucleotide targeting Mex-3B suppresses allergic airway inflammation. Our data identify a signaling pathway that post-transcriptionally regulates IL-33 expression and suggest that Mex-3B could be a promising molecular target for the treatment of allergic asthma.
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Journal: - Volume 16, Issue 9, 30 August 2016, Pages 2456–2471