Open Access

Lysophosphatidic acid enhances neointimal hyperplasia following vascular injury through modulating proliferation, autophagy, inflammation and oxidative stress

  • Authors:
    • Xuhui Shen
    • Jianjun Zou
    • Fuyong Li
    • Tianhe Zhang
    • Tongqi Guo
  • View Affiliations

  • Published online on: April 27, 2018     https://doi.org/10.3892/mmr.2018.8937
  • Pages: 87-96
  • Copyright: © Shen et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Lysophosphatidic acid (LPA), which is one of the intermediate products of membrane phospholipid metabolism, is a bioactive phospholipid that possesses diverse activities. In the present study, the effects of LPA on neointimal formation following vascular injury were investigated. A carotid artery balloon injury model was employed in the present study, and following vascular injury, rats received an intraperitoneal injection of 1 mg/kg LPA. Subsequently, histopathological alterations were assessed by hematoxylin and eosin staining, the expression levels of proliferating cell nuclear antigen (PCNA) were detected by immunohistochemistry, apoptosis was assessed via a terminal deoxynucleotidyl transferase‑mediated dUTP nick end labeling assay, and the expression levels of apoptosis‑associated and autophagy‑associated proteins were detected by western blotting. In addition, inflammatory and oxidative stress‑associated factors were assessed by reverse transcription‑quantitative polymerase chain reaction or corresponding kits. The results of the present study demonstrated that LPA enhanced vascular injury‑induced neointimal hyperplasia. LPA further elevated the expression levels of PCNA in the injured carotid artery tissues. LPA exhibited no effect on apoptosis in carotid artery tissues, whereas it modulated autophagy in the injured carotid artery tissues. Furthermore, LPA enhanced vascular injury‑induced inflammation and oxidative stress. The present study demonstrated that LPA may enhance neointimal hyperplasia following vascular injury by modulating proliferation, autophagy, inflammation and oxidative stress, but not apoptosis. Furthermore LPA may contribute to the pathology of atherosclerosis and may be considered a promising therapeutic target for the treatment of atherosclerosis.
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July-2018
Volume 18 Issue 1

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Shen X, Zou J, Li F, Zhang T and Guo T: Lysophosphatidic acid enhances neointimal hyperplasia following vascular injury through modulating proliferation, autophagy, inflammation and oxidative stress. Mol Med Rep 18: 87-96, 2018
APA
Shen, X., Zou, J., Li, F., Zhang, T., & Guo, T. (2018). Lysophosphatidic acid enhances neointimal hyperplasia following vascular injury through modulating proliferation, autophagy, inflammation and oxidative stress. Molecular Medicine Reports, 18, 87-96. https://doi.org/10.3892/mmr.2018.8937
MLA
Shen, X., Zou, J., Li, F., Zhang, T., Guo, T."Lysophosphatidic acid enhances neointimal hyperplasia following vascular injury through modulating proliferation, autophagy, inflammation and oxidative stress". Molecular Medicine Reports 18.1 (2018): 87-96.
Chicago
Shen, X., Zou, J., Li, F., Zhang, T., Guo, T."Lysophosphatidic acid enhances neointimal hyperplasia following vascular injury through modulating proliferation, autophagy, inflammation and oxidative stress". Molecular Medicine Reports 18, no. 1 (2018): 87-96. https://doi.org/10.3892/mmr.2018.8937