Journal
MOLECULAR AND CELLULAR BIOCHEMISTRY
Volume 477, Issue 3, Pages 781-791Publisher
SPRINGER
DOI: 10.1007/s11010-021-04330-y
Keywords
Adverse left ventricular remodeling; Myocardial infarction; MicroRNA; Exosome
Categories
Funding
- Ministry of Health of the Republic of Turkey [2015/SAGEM-2/001]
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Increasing evidence suggests that miRNA plays an important role in myocardial healing and ventricular remodeling after acute myocardial infarction (AMI). A study found that there are 8 miRNAs associated with adverse left ventricular remodeling in ST-elevated MI patients. Among them, 3 miRNAs show significant differences during the follow-up period, while the rest show differences during the acute phase of AMI. Further mechanistic studies are needed to understand the complex remodeling process after AMI.
Increasing evidence indicates that microRNA (miRNA) regulated mechanisms in myocardial healing and ventricular remodeling following acute myocardial infarction (AMI). We aim to comprehensively investigate changes of exosomal miRNA profile during the post-MI period and determine potential miRNAs associated to adverse left ventricular remodeling (ALVR). We prospectively evaluated ST-elevated MI patients with cardiac magnetic resonance imaging at the 2 weeks and 6 months after AMI (n = 10). ALVR was defined as an increase in LV end-diastolic and end-systolic volume > 13%. The blood samples were taken for miRNA measurements at the baseline, 2 and 6 weeks after AMI. In the miRNA profile assessment, 8 miRNAs were identified that were associated ALVR (miR-199a-5p, miR-23b-3p, miR-26b-5p, miR-301a-3p, miR-374a-5p, miR-423-5p, miR-483-5p and miR-652-3p). Three of them (miR-301a-3p, miR-374a-5p and miR-423-5p) differed significantly between patients with and without ALVR during follow-up period and the rest of them during the acute phase of AMI. The detection of these miRNAs, which have different role in various pathways, necessitate future mechanistic studies unravel the complex remodeling process after AMI.
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