MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction
Myocardial infarction (MI) is a life-threatening cardiac event that results in extreme damage to the heart muscle. The Wnt signaling pathway has been implicated in the development of heart diseases. Hence, the current study aimed to investigate the role of microRNA (miRNA) in association with the Wn...
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doaj-6e0574a03147480a90662066df1c594c2020-11-25T01:31:33ZengElsevierMolecular Therapy: Nucleic Acids2162-25312019-12-0118110122MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial InfarctionQiang Su0Xiang-Wei Lv1Yu-Han Sun2Zi-Liang Ye3Bing-Hui Kong4Zhen-Bai Qin5Department of Cardiology, Affiliated Hospital of Guilin Medical University, Guilin 541001, P.R. China; Corresponding author: Qiang Su, Department of Cardiology, Affiliated Hospital of Guilin Medical University, No. 15, Lequn Road, Xiufeng District, Guilin 541001, Guangxi Zhuang Autonomous Region, P.R. China.Department of Cardiology, Affiliated Hospital of Guilin Medical University, Guilin 541001, P.R. ChinaDepartment of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. ChinaDepartment of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. ChinaDepartment of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. ChinaDepartment of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P.R. ChinaMyocardial infarction (MI) is a life-threatening cardiac event that results in extreme damage to the heart muscle. The Wnt signaling pathway has been implicated in the development of heart diseases. Hence, the current study aimed to investigate the role of microRNA (miRNA) in association with the Wnt signaling pathway to identify potential candidates for MI therapy. Differentially expressed miRNAs associated with MI occurrence were screened, and miR-494 was selected for subsequent experiments. Sprague-Dawley rats were included to establish a MI model via intraperitoneal injection of 0.1 mg/kg atropine sulfate and 40 mg/kg pentobarbital sodium. Then, the interaction between miR-494 and LRG1 was identified. The effect of miR-494 on expression of the Wnt signaling pathway-related genes, proliferation, migration, and invasion ability of fibroblasts and vascular endothelial cells (VECs) was subsequently evaluated through a series of gain- and loss-of-function experiments. The results revealed that miR-494 was poorly expressed and LRG1 was highly expressed in MI rats. miR-494 targets and downregulates LRG1, which resulted in the inactivation of the Wnt signaling pathway and promoted proliferation, migration, and invasion ability of fibroblasts and VECs. In conclusion, this study provided evidence suggesting that overexpressed miR-494 could potentially promote the proliferation, migration, and invasion of fibroblasts and VECs in MI through the inactivation of the Wnt signaling pathway by binding to LRG1. Keywords: microRNA-494, LRG1, Wnt signaling pathway, myocardial infarction, fibroblasts, vascular endothelial cells, proliferation, migrationhttp://www.sciencedirect.com/science/article/pii/S2162253119302197 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Qiang Su Xiang-Wei Lv Yu-Han Sun Zi-Liang Ye Bing-Hui Kong Zhen-Bai Qin |
spellingShingle |
Qiang Su Xiang-Wei Lv Yu-Han Sun Zi-Liang Ye Bing-Hui Kong Zhen-Bai Qin MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction Molecular Therapy: Nucleic Acids |
author_facet |
Qiang Su Xiang-Wei Lv Yu-Han Sun Zi-Liang Ye Bing-Hui Kong Zhen-Bai Qin |
author_sort |
Qiang Su |
title |
MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction |
title_short |
MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction |
title_full |
MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction |
title_fullStr |
MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction |
title_full_unstemmed |
MicroRNA-494 Inhibits the LRG1 Expression to Induce Proliferation and Migration of VECs in Rats following Myocardial Infarction |
title_sort |
microrna-494 inhibits the lrg1 expression to induce proliferation and migration of vecs in rats following myocardial infarction |
publisher |
Elsevier |
series |
Molecular Therapy: Nucleic Acids |
issn |
2162-2531 |
publishDate |
2019-12-01 |
description |
Myocardial infarction (MI) is a life-threatening cardiac event that results in extreme damage to the heart muscle. The Wnt signaling pathway has been implicated in the development of heart diseases. Hence, the current study aimed to investigate the role of microRNA (miRNA) in association with the Wnt signaling pathway to identify potential candidates for MI therapy. Differentially expressed miRNAs associated with MI occurrence were screened, and miR-494 was selected for subsequent experiments. Sprague-Dawley rats were included to establish a MI model via intraperitoneal injection of 0.1 mg/kg atropine sulfate and 40 mg/kg pentobarbital sodium. Then, the interaction between miR-494 and LRG1 was identified. The effect of miR-494 on expression of the Wnt signaling pathway-related genes, proliferation, migration, and invasion ability of fibroblasts and vascular endothelial cells (VECs) was subsequently evaluated through a series of gain- and loss-of-function experiments. The results revealed that miR-494 was poorly expressed and LRG1 was highly expressed in MI rats. miR-494 targets and downregulates LRG1, which resulted in the inactivation of the Wnt signaling pathway and promoted proliferation, migration, and invasion ability of fibroblasts and VECs. In conclusion, this study provided evidence suggesting that overexpressed miR-494 could potentially promote the proliferation, migration, and invasion of fibroblasts and VECs in MI through the inactivation of the Wnt signaling pathway by binding to LRG1. Keywords: microRNA-494, LRG1, Wnt signaling pathway, myocardial infarction, fibroblasts, vascular endothelial cells, proliferation, migration |
url |
http://www.sciencedirect.com/science/article/pii/S2162253119302197 |
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