Myocardial ischemia/reperfusion (I/R) injury is a common consequence of restored blood supply after acute myocardial infarction (AMI), but its underlying mechanisms remain largely elusive. In this study, we aimed to investigate the functional role of long non-coding RNA PVT1 in hypoxia/reoxygenation (H/R)-treated AC16 cardiomyocytes. Our experimental results demonstrated that H/R treatment impaired the viability and increased the apoptosis of AC16 cells, and knockdown of PVT1 blocked the H/R injury. Besides, PVT1 knockdown also reduced excessive autophagy in H/R-treated AC16 cells. Furthermore, we confirmed that PVT1 might serve as a ceRNA for miR-186 in AC16 cells, and rescue experiments showed that miR-186 inhibition blocked the effects of PVT1 knockdown in H/R-treated AC16 cells. In summary, this study implied that PVT1 might be a promising therapeutic target for treating myocardial I/R injury.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.gene.2020.144775 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Unlocking the power of empagliflozin: Rescuing inflammation in hyperglycaemia- exposed human cardiomyocytes through comprehensive multi-level analysis.
Eur J Heart Fail
January 2025
Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy.
Aims: Hyperglycaemic conditions increase cardiac stress, a common phenomenon associated with inflammation, aging, and metabolic imbalance. Sodium-glucose cotransporter 2 inhibitors, a class of anti-diabetic drugs, showed to improve cardiovascular functions although their mechanism of action has not yet been fully established. This study investigated the effects of empagliflozin on cardiomyocytes following high glucose exposure, specifically focusing on inflammatory and metabolic responses.
View Article and Find Full Text PDFTFEB activator protects against ethanol toxicity-induced cardiac injury by restoring mitophagy and autophagic flux.
Biochim Biophys Acta Mol Basis Dis
January 2025
College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China; The Key Laboratory of Zoological Systematics and Application, College of Life Sciences, Hebei University, Baoding 071002, China. Electronic address:
Excessive alcohol consumption is a major cause of alcoholic cardiomyopathy (ACM) and myocardial injury. This study aims to investigate the role of transcription factor EB (TFEB) in ethanol-induced cardiac anomalies using a murine model, AC16 human cardiomyocytes, and human plasma. Wild-type mice treated with a TFEB activator (Compound 1) or vehicle (25 mg/kg/d) were challenged with or without ethanol (3 g/kg/d, i.
View Article and Find Full Text PDFGYY4137 protects against type 2 diabetes mellitus-associated myocardial autophagy by suppressing FOXO1 signal pathway.
Anim Cells Syst (Seoul)
December 2024
Yunkang School of Medicine and Health, Nanfang College, Guangzhou, People's Republic of China.
Diabetic cardiomyopathy (DCM) is a major complication of type 2 diabetes mellitus (T2DM), but its effective prevention and treatment are still limited. We investigated the effects of GYY4137, a slow-releasing hydrogen sulfide donor, and its downstream mediator forkhead box protein O1 (FOXO1) on T2DM-associated DCM. , T2DM mice were induced by a high-fat diet coupled with streptozotocin injection.
View Article and Find Full Text PDFA novel super-resolution STED microscopy analysis approach to observe spatial MCU and MICU1 distribution dynamics in cells.
Biochim Biophys Acta Mol Cell Res
January 2025
Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Neue Stiftingtalstraße 6/4 EAST, 8010 Graz, Austria; BioTechMed, Graz, Austria. Electronic address:
The uptake of Ca by mitochondria is an important and tightly controlled process in various tissues. Even small changes in the key proteins involved in this process can lead to significant cellular dysfunction and, ultimately, cell death. In this study, we used stimulated emission depletion (STED) microscopy and developed an unbiased approach to monitor the sub-mitochondrial distribution and dynamics of the mitochondrial calcium uniporter (MCU) and mitochondrial calcium uptake 1 (MICU1) under resting and stimulated conditions.
View Article and Find Full Text PDFThis study aimed to elucidate the impact of advanced glycation end products (AGEs) and glucose shock on cardiomyocyte viability, gene expression, cardiac biomarkers, and cardiac contractility. Firstly, AGEs were generated in-house, and their concentration was confirmed using absorbance measurements. AC16 cardiomyocytes were then exposed to varying doses of AGEs, resulting in dose-dependent decreases in cell viability.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!