PMID- 31298394 OWN - NLM STAT- MEDLINE DCOM- 20201001 LR - 20201001 IS - 2284-0729 (Electronic) IS - 1128-3602 (Linking) VI - 23 IP - 12 DP - 2019 Jun TI - MicroRNA-361 regulates apoptosis of cardiomyocytes after ischemic-reperfusion injury. PG - 5413-5421 LID - 18210 [pii] LID - 10.26355/eurrev_201906_18210 [doi] AB - OBJECTIVE: To investigate the role and mechanism of microRNA-361 (miR-361) in apoptosis after myocardial ischemia-reperfusion (MI-R) injury. MATERIALS AND METHODS: For the in vivo experiments, the mice model of MI-R injury was established, and miR-361 was up-regulated via lentivirus with miR-298 overexpression. The expression of miR-361 and Bcl-2 associated X protein (BAX) were detected via Real Time-quantitative Polymerase Chain Reaction (qPCR) and Western blot (WB), respectively. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay was used to detect the apoptosis in myocardial tissues. MI-R injury was also simulated in vitro experiments, and the relationship between miR-361 and BAX was verified using Luciferase reporter vector. The effect of miR-361 on cardiomyocyte apoptosis was also detected at the cellular level. RESULTS: In vivo experiments showed that the miR-361 expression was down-regulated at MI-R injury area. The up-regulation of miR-361 significantly decreased the expression of BAX, reduced the myocardial apoptosis and inhibited the mitochondrial apoptosis pathway protein expression, including the cytochrome-c (Cyt-C) and cleaved caspase-3. In vitro experiments revealed that BAX was a target gene of miR-361 and further proved that miR-361 could inhibit the cytochrome-c and cleaved caspase-3 expression, as well as reduce the myocardial apoptosis through BAX. CONCLUSIONS: MiR-361 could improve the myocardial apoptosis through the target gene BAX in MI-R injury. FAU - Xie, Y AU - Xie Y AD - Intensive Care Unit, Maternity and Child Health Care of Zaozhuang, Zaozhuang, China. 18906322555@189.cn. FAU - Yao, F-L AU - Yao FL FAU - Li, X AU - Li X LA - eng PT - Journal Article PL - Italy TA - Eur Rev Med Pharmacol Sci JT - European review for medical and pharmacological sciences JID - 9717360 RN - 0 (Bax protein, mouse) RN - 0 (MIRN361 microRNA, mouse) RN - 0 (MicroRNAs) RN - 0 (bcl-2-Associated X Protein) RN - 9007-43-6 (Cytochromes c) RN - EC 3.4.22.- (Casp3 protein, mouse) RN - EC 3.4.22.- (Caspase 3) SB - IM MH - Animals MH - Animals, Newborn MH - Apoptosis/*genetics MH - Caspase 3/metabolism MH - Cells, Cultured MH - Cytochromes c/metabolism MH - Disease Models, Animal MH - Down-Regulation MH - Humans MH - Male MH - Mice MH - Mice, Inbred C57BL MH - MicroRNAs/*metabolism MH - Myocardial Reperfusion Injury/*pathology MH - Myocardium/cytology/*pathology MH - Myocytes, Cardiac/pathology MH - Primary Cell Culture MH - Rats MH - Rats, Sprague-Dawley MH - Signal Transduction/genetics MH - Up-Regulation MH - bcl-2-Associated X Protein/*genetics/metabolism EDAT- 2019/07/13 06:00 MHDA- 2020/10/02 06:00 CRDT- 2019/07/13 06:00 PHST- 2019/07/13 06:00 [entrez] PHST- 2019/07/13 06:00 [pubmed] PHST- 2020/10/02 06:00 [medline] AID - 18210 [pii] AID - 10.26355/eurrev_201906_18210 [doi] PST - ppublish SO - Eur Rev Med Pharmacol Sci. 2019 Jun;23(12):5413-5421. doi: 10.26355/eurrev_201906_18210.