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Overexpression of Long Noncoding RNA ANRIL Inhibits Phenotypic Switching of Vascular Smooth Muscle Cells to Prevent Atherosclerotic Plaque Development

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Specialty Geriatrics
Date 2021 Jan 7
PMID 33411680
Citations 13
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Abstract

Background: Phenotypic switching of vascular smooth muscle cells (VSMCs) plays a key role in atherosclerosis. Long noncoding RNA ANRIL (lncRNA-ANRIL) is critical in vascular homeostasis. Metformin produces multiple beneficial effects in atherosclerosis. However, the underlying mechanisms need to be elucidated.

Methods And Results: Metformin increased lncRNA-ANRIL expression and AMPK activity in cultured VSMCs, and inhibited the phenotypic switching of VSMCs to the synthetic phenotype induced by platelet-derived growth factor (PDGF). Overexpression of lncRNA-ANRIL inhibited phenotypic switching and reversed the reduction of AMPK activity in PDGF-treated VSMCs. While, gene knockdown of lncRNA-ANRIL by adenovirus or silence of AMPKγ through siRNA abolished AMPK activation induced by metformin in VSMCs. RNA-immunoprecipitation analysis indicated that the affinity of lncRNA-ANRIL to AMPKγ subunit was increased by metformin. , administration of metformin increased the levels of lncRNA-ANRIL, suppressed VSMC phenotypic switching, and prevented the development of atherosclerotic plaque in mice fed with western diet. These protective effects of metformin were abolished by infecting mice with adenovirus expressing lncRNA-ANRIL shRNA. The levels of AMPK phosphorylation, AMPK activity, and lncRNA-ANRIL expression were decreased in human atherosclerotic lesions.

Conclusion: Metformin activates AMPK to suppress the formation of atherosclerotic plaque through upregulation of lncRNA-ANRIL.

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References
1.
Lin H, Ni T, Zhang J, Meng L, Gao F, Pan S . Knockdown of Herp alleviates hyperhomocysteinemia mediated atherosclerosis through the inhibition of vascular smooth muscle cell phenotype switching. Int J Cardiol. 2018; 269:242-249. DOI: 10.1016/j.ijcard.2018.07.043. View

2.
McPherson R, Pertsemlidis A, Kavaslar N, Stewart A, Roberts R, Cox D . A common allele on chromosome 9 associated with coronary heart disease. Science. 2007; 316(5830):1488-91. PMC: 2711874. DOI: 10.1126/science.1142447. View

3.
Witters L, Kemp B . Insulin activation of acetyl-CoA carboxylase accompanied by inhibition of the 5'-AMP-activated protein kinase. J Biol Chem. 1992; 267(5):2864-7. View

4.
Kim J, Yang G, Kim Y, Kim J, Ha J . AMPK activators: mechanisms of action and physiological activities. Exp Mol Med. 2016; 48:e224. PMC: 4855276. DOI: 10.1038/emm.2016.16. View

5.
Bierhoff H . Analysis of lncRNA-Protein Interactions by RNA-Protein Pull-Down Assays and RNA Immunoprecipitation (RIP). Methods Mol Biol. 2017; 1686:241-250. DOI: 10.1007/978-1-4939-7371-2_17. View