scholarly journals Erratum to “Expression Profiles and Ontology Analysis of Circular RNAs in a Mouse Model of Myocardial Ischemia/Reperfusion Injury”

2020 ◽  
Vol 2020 ◽  
pp. 1-1
Author(s):  
Zhaoqing Sun ◽  
Tongtong Yu ◽  
Yundi Jiao ◽  
Dongxu He ◽  
Jiake Wu ◽  
...  
Keyword(s):  
Myocardial Ischemia ◽  
Mouse Model ◽  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Expression Profiles ◽  
Ischemia Reperfusion ◽  
Circular Rnas ◽  
Myocardial Ischemia Reperfusion Injury ◽  
Myocardial Ischemia Reperfusion

scholarly journals MicroRNA-24-3p Attenuates Myocardial Ischemia/Reperfusion Injury by Suppressing RIPK1 Expression in Mice

2018 ◽  
Vol 51 (1) ◽  
pp. 46-62 ◽  
Author(s):  
Hong Tan ◽  
Jie Qi ◽  
Bo-Yuan Fan ◽  
Jian Zhang ◽  
Fei-Fei Su ◽  
...  
Keyword(s):  
Myocardial Ischemia ◽  
Mouse Model ◽  
Cardiac Function ◽  
Reperfusion Injury ◽  
Cell Apoptosis ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Infarct Area ◽  
Myocardial Ischemia Reperfusion Injury ◽  
Myocardial Ischemia Reperfusion

Background/Aims: This study was developed to investigate a potential therapeutic method for myocardial ischemia/reperfusion injury involving the promotion of miR-24-3p expression. Methods: Microarray analysis was used to screen differentially expressed genes in a myocardial ischemia/reperfusion (I/R) injury mouse model. Gene set enrichment analysis was utilized to determine vital signaling pathways. Targeting verification was conducted with a luciferase reporter assay. Myocardial I/R injury was developed in mice, and the expression levels of RIPK1 and miR-24-3p were investigated by qRT-PCR and Western blot. Hemodynamic parameters and the activity of serum myocardial enzymes were measured to evaluate cardiac function. Infarct area was observed through HE and TTC staining. Myocardial cell apoptosis was examined by TUNEL staining and caspase-3 activity analysis. Results: RIPK1 was an upregulated mRNA found by microarray analysis and a verified target of the downregulated miRNA miR-24-3p. The upregulation of RIPK1 (1.8-fold) and the downregulation of miR-24-3p (0.3-fold) were confirmed in I/R mice. RIPK1 led to impaired cardiac function indexes, increased infarct area and cell apoptosis, while miR-24-3p could reverse the injury by regulating RIPK1. The TNF signaling pathway was proven to be involved in myocardial I/R injury through the detection of the dysregulation of related proteins. Conclusion: In conclusion, RIPK1 was upregulated and miR-24-3p was downregulated in a myocardial I/R injury mouse model. RIPK1 could aggravate myocardial I/R injury via the TNF signaling pathway, while miR-24-3p could suppress RIPK1 and therefore exert cardioprotective effects in myocardial I/R injury.

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