Pioglitazone up-regulates long non-coding RNA MEG3 to protect endothelial progenitor cells via increasing HDAC7 expression in metabolic syndrome

Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie
H Z LiuC Y Gao

Abstract

Long non-coding RNA (lncRNA) maternally expressed 3 (MEG3) is expressed in endothelial cells and involved in angiogenesis and vascular function. It was proposed that MEG3 participates in the process of endothelial progenitor cells (EPCs) functions in metabolic syndrome (MetS). In this study, the circulating EPCs number and function were decreased in MetS subjects. The MEG3 expression was expressed at a lower level and microRNA-140-5p (miR-140-5p) was expressed at a higher level in circulating EPCs of subjects with MetS. Pioglitazone reversed the alterations of EPCs function and the expression levels of MEG3 and miR-140-5p in EPCs. In bone marrow-derived EPCs exposed to palmitate, down-regulation of miR-140-5p canceled the increase of MEG3 expression level induced by Pioglitazone. Overexpression of MEG3 resulted in the down-regulation of miR-140-5p. The luciferase reporter assay and RIP assay showed that MEG3 targeted miR-140-5p. In addition, the HDAC7 expression levels were regulated by miR-140-5p and MEG3. These findings demonstrated that Pioglitazone up-regulated MEG3 expression to protect EPCs via decreasing miR-140-5p expression and increasing HDAC7 expression in MetS, which may be a novel therapeutic target for preventing ...Continue Reading

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Citations

Jun 2, 2016·Canadian Journal of Physiology and Pharmacology·Mary Girgis ShahataaFatma Abd Elhaleem Mahmoud
May 18, 2017·Future Oncology·Su-Rui ShengXin-Hua Liang
Dec 1, 2017·International Journal of Molecular Sciences·Maude Giroud, Marcel Scheideler
Sep 20, 2018·Journal of Cellular Biochemistry·Mohammad-Taher MoradiZohreh Rahimi
Nov 2, 2017·Journal of Cellular Biochemistry·Fei HouQingsheng Kong
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Jun 6, 2018·Frontiers in Physiology·Tyler WeirickShizuka Uchida
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Jul 5, 2019·Biochimica Et Biophysica Acta. Gene Regulatory Mechanisms·Samuel HamiltonMichel Bernier
Jul 25, 2021·International Journal of Molecular Sciences·Vianet Argelia Tello-FloresEugenia Flores-Alfaro

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