Molecular interplay between microRNA-130a and PTEN in palmitic acid-mediated impaired function of endothelial progenitor cells: Effects of metformin

  • Authors:
    • Xuemei Gu
    • Xiao‑Qian Wang
    • Min‑Jie Lin
    • Haili Liang
    • Shi‑Yan Fan
    • Luyin Wang
    • Xiaoqing Yan
    • Wenyue Liu
    • Fei‑Xia Shen
  • View Affiliations

  • Published online on: March 20, 2019     https://doi.org/10.3892/ijmm.2019.4140
  • Pages: 2187-2198
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Abstract

Metformin serves an important role in improving the functions of endothelial progenitor cells (EPCs). MicroRNAs (miRNAs), small non‑coding RNAs, have been investigated as significant regulators of EPC vascular functions. The present study investigated the molecular crosstalk between metformin and miRNA‑130a (miR‑130a) in the functions of EPCs exposed to palmitic acid (PA). Isolated EPCs were treated with metformin, PA, and metformin + PA, respectively. Cell Counting Kit‑8, Transwell and Matrigel assays were performed to detect the proliferation, migration and tube formation ability of EPCs following different treatments. The expression of miR‑130a, phosphatase and tensin homolog (PTEN) and phosphorylated‑AKT was analyzed by reverse transcription‑quantitative polymerase chain reaction and western blotting. The specific mechanism underlying the function of metformin in EPCs was further elucidated by transfecting miR‑130a mimics and inhibitor to overexpress and inhibit the expression of miR‑130a in EPCs, respectively. EPCs exhibited impaired functions of proliferation (P<0.01 compared with the control), migration (P<0.01 compared with the control) and tube formation (P<0.01 compared with the control) following treatment with PA, and the expression levels of miR‑130a and PTEN were decreased and increased, respectively. However, the presence of metformin, or the overexpression of miR‑130a using miR‑130a mimic alleviated the impairment of angiogenesis and proliferation, decreased the expression of PTEN and activated the phosphoinositide‑3 kinase/AKT pathway in EPCs exposed to PA. By contrast, downregulating the expression of miR‑130a with a miR‑130a inhibitor reversed the metformin‑mediated protection. These results demonstrate the beneficial effect of miR‑130a/PTEN on EPC functions, which can be regulated by metformin. The effects of metformin on improving PA‑induced EPC dysfunction are mediated by miR‑130a and PTEN, which may assist in the prevention and/or treatment of diabetic vascular disease.
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May-2019
Volume 43 Issue 5

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Copy and paste a formatted citation
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Spandidos Publications style
Gu X, Wang XQ, Lin MJ, Liang H, Fan SY, Wang L, Yan X, Liu W and Shen FX: Molecular interplay between microRNA-130a and PTEN in palmitic acid-mediated impaired function of endothelial progenitor cells: Effects of metformin. Int J Mol Med 43: 2187-2198, 2019.
APA
Gu, X., Wang, X., Lin, M., Liang, H., Fan, S., Wang, L. ... Shen, F. (2019). Molecular interplay between microRNA-130a and PTEN in palmitic acid-mediated impaired function of endothelial progenitor cells: Effects of metformin. International Journal of Molecular Medicine, 43, 2187-2198. https://doi.org/10.3892/ijmm.2019.4140
MLA
Gu, X., Wang, X., Lin, M., Liang, H., Fan, S., Wang, L., Yan, X., Liu, W., Shen, F."Molecular interplay between microRNA-130a and PTEN in palmitic acid-mediated impaired function of endothelial progenitor cells: Effects of metformin". International Journal of Molecular Medicine 43.5 (2019): 2187-2198.
Chicago
Gu, X., Wang, X., Lin, M., Liang, H., Fan, S., Wang, L., Yan, X., Liu, W., Shen, F."Molecular interplay between microRNA-130a and PTEN in palmitic acid-mediated impaired function of endothelial progenitor cells: Effects of metformin". International Journal of Molecular Medicine 43, no. 5 (2019): 2187-2198. https://doi.org/10.3892/ijmm.2019.4140