Long noncoding RNA CASC2 protect ROS-induced oxidative stress in myocardial infarction by miR-18a/SIRT2
| Autor: | Junyi Zeng, Wan Zhang, Tong Wen, Zi-Jun Tang, Zeqi Zheng, Guoqiu Ying, Jing Zhang, Dasong Yi, Lu Ding |
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| Rok vydání: | 2021 |
| Předmět: |
Biomedical Engineering
Myocardial Infarction Bioengineering Apoptosis SIRT2 medicine.disease_cause Applied Microbiology and Biotechnology Rats Sprague-Dawley Mice Sirtuin 2 Downregulation and upregulation In vivo Drug Discovery Gene expression medicine Animals cardiovascular diseases chemistry.chemical_classification Reactive oxygen species NADPH oxidase biology Chemistry Process Chemistry and Technology General Medicine Long non-coding RNA Rats MicroRNAs Oxidative Stress Cancer research biology.protein Molecular Medicine RNA Long Noncoding Reactive Oxygen Species Oxidative stress Biotechnology |
| Zdroj: | Biotechnology and applied biochemistryREFERENCES. 69(5) |
| ISSN: | 1470-8744 |
| Popis: | We aimed to investigate the function and its possible mechanisms of long noncoding RNA (lncRNA) in acute myocardial infarction (AMI) model. Patients with AMI and normal volunteers were selected from our hospital. Sprague-Dawley rats were induced into in vivo model of AMI. H9c2 cells were treated with H2 O2 to generate injury model. A significantly lower serum gene expression of lncRNA CASC2 was detected. In rat models of AMI, lncRNA CASC2 gene expressions in heart tissue of mice with AMI were decreased. In in vitro model, downregulation of lncRNA CASC2 increased reactive oxygen species (ROS)-induced oxidative stress; lncRNA CASC2 induced NADPH oxidase (NOX-2) expression and suppressed miR-18a expression; MiR-18a promoted ROS-induced oxidative stress; downregulation of miR-18a decreased ROS-induced oxidative stress. The inhibition of miR-18a reversed the effects of CASC2 downregulation on ROS-induced oxidative stress in in vitro model of AMI. The activation of miR-18a reversed the effects of CASC2 on ROS-induced oxidative stress in in vitro model of AMI. These data for the first time suggest that lncRNA CASC2 have better protective effects on AMI, which could reduce oxidative stress through their carried miR-18a and subsequently downregulating the SIRT2/ROS pathway. |
| Databáze: | OpenAIRE |
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