Effects of long non-coding RNA myocardial infarction-associated transcript on retinal neovascularization in a newborn mouse model of oxygen-induced retinopathy

作     者：Yu Di Yue Wang Xue Wang Qing-Zhu Nie Yu Di;Yue Wang;Xue Wang;Qing-Zhu Nie

作者机构：Department of OphthalmologyShengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina 

出 版 物：《Neural Regeneration Research》 (中国神经再生研究（英文版）)

年 卷 期：2021年第16卷第9期

页      面：1877-1881页

核心收录：

学科分类：0710[理学-生物学] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 100212[医学-眼科学] 10[医学] 

基　　金：supported by the National Natural Science Foundation of China,No.81600747(to YD) the Start-Up Foundation for Doctors of Liaoning Province,China,No.201501020(to YD)。 

主　　题：long non-coding RNA myocardial infarction-associated transcript neovascularization neurovascular prematurity retinopathy vascular development vascular endothelial growth factor 

摘      要：Whether long non-coding RNA myocardial infarction-associated transcript is involved in oxygen-induced retinopathy remains poorly understood. To validate this hypothesis, we established a newborn mouse model of oxygen-induced retinopathy by feeding in an oxygen concentration of 75 ± 2% from postnatal day 8 to postnatal day 12, followed by in normal air. On postnatal day 11, the mice were injected with the myocardial infarction-associated transcript siRNA plasmid via the vitreous cavity to knockdown long non-coding RNA myocardial infarction-associated transcript. Myocardial infarction-associated transcript siRNA transcription significantly inhibited myocardial infarctionassociated transcript mRNA expression, reduced the phosphatidylinosital-3-kinase, phosphorylated Akt and vascular endothelial growth factor immunopositivities, protein and mRNA expression, and alleviated the pathological damage to the retina of oxygen-induced retinopathy mouse models. These findings suggest that myocardial infarction-associated transcript is likely involved in the retinal neovascularization in retinopathy of prematurity and that inhibition of myocardial infarction-associated transcript can downregulate phosphatidylinosital-3-kinase, phosphorylated Akt and vascular endothelial growth factor expression levels and inhibit neovascularization. This study was approved by the Animal Ethics Committee of Shengjing Hospital of China Medical University, China(approval No. 2016 PS074 K) on February 25, 2016.