Downregulation of miR-140-5p affects the pathogenesis of HSCR by targeting EGR2
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In brief
In brief
Study identifies downregulation of miR-140-5p as a key factor in Hirschsprung's disease pathogenesis through its targeting of EGR2. Analysis of 32 HSCR patients revealed inverse correlation between miR-140-5p and EGR2 expression, with miR-140-5p knockdown inhibiting neural crest cell migration and proliferation.
Written by the GCMD Library team from the article.
Abstract
Background/aims
Hirschsprung's disease (HSCR) is the most common digestive disease caused by disorders of neural crest development. Despite the known involvement of miR-140-5p in many human diseases, its biological role in Hirschsprung’s disease (HSCR) remains undefined. In this study, we sought to reveal the roles of miR-140-5p in the pathogenesis of HSCR.
Methods
Quantitative real-time PCR and western blotting were used to measure the relative expression levels of miRNAs, mRNAs, and proteins in stenotic and dilated sections of the colon of 32 HSCR patients. Targets and proteins were evaluated by western blotting, and Transwell, CCK-8, and flow cytometry assays were adopted to detect the functional effects of miR-140-5p on SH-SY5Y cells.
Results
miR-140-5p was significantly downregulated in HSCR tissue samples with increased expression of EGR2, and knockdown of miR-140-5p inhibited cell migration and proliferation and promoted apoptosis in SH-SY5Y cell lines. EGR2 expression was inversely correlated with that of miR-140-5p in cell lines.
Conclusions
miR-140-5p may influence the pathogenesis of HSCR by targeting EGR2.