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MicroRNA-377 Alleviates Myocardial Injury Induced by Hypoxia/Reoxygenation via Downregulating LILRB2 Expression.


ABSTRACT: Background:miR-377 is closely related to myocardial regeneration. miR-377-adjusted mesenchymal stem cells abducted ischemic cardiac angiogenesis. Nevertheless, there were rarely reports about the impact of miR-377 on myocardial ischemia injury. The purpose of this work is that whether miR-377 can protect against myocardial injury caused by hypoxia/reoxygenation (H/R). Methods:Gene expression omnibus database (http://www.ncbi.nlm.nih.gov/geo/; no. GSE53211) was utilized to study the differential expression of miR-377 in patients with an acute ST-segment elevation myocardial infarction and healthy controls. The luciferase activity was determined utilizing the dual-luciferase reporter system. Quantitative real-time polymerase chain reaction and Western blotting were used to measure the messenger RNA and protein level. Results:Low expression of miR-377 and high expression of leukocyte immunoglobulin-like receptor B2 (LILRB2) were identified in patients with myocardial infarction from analyzing the Gene Expression Omnibus data set. Besides, miR-377 expression was downregulated in cardiomyocyte exposed to H/R. Additionally, overexpression of miR-377 could visibly improve cardiomyocyte injury by regulating cell activity and apoptosis. Conclusions:In short, our findings suggested that miR-377/LILRB2 might regard as a hopeful therapeutic target for myocardial ischemic.

SUBMITTER: Xie M 

PROVIDER: S-EPMC7328223 | biostudies-literature | 2020 Apr-Jun

REPOSITORIES: biostudies-literature

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MicroRNA-377 Alleviates Myocardial Injury Induced by Hypoxia/Reoxygenation via Downregulating LILRB2 Expression.

Xie Mengwei M   Hu Chunlan C   Li Delin D   Li Shifeng S  

Dose-response : a publication of International Hormesis Society 20200401 2


<h4>Background</h4>miR-377 is closely related to myocardial regeneration. miR-377-adjusted mesenchymal stem cells abducted ischemic cardiac angiogenesis. Nevertheless, there were rarely reports about the impact of miR-377 on myocardial ischemia injury. The purpose of this work is that whether miR-377 can protect against myocardial injury caused by hypoxia/reoxygenation (H/R).<h4>Methods</h4>Gene expression omnibus database (http://www.ncbi.nlm.nih.gov/geo/; no. GSE53211) was utilized to study th  ...[more]

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