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Article

Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells

  • Authors:
    • Wencheng Yu
    • Weina Ji
    • Liyun Mi
    • Chen Lin
  • View Affiliations / Copyright

    Affiliations: Department of Respiratory Diseases, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China, Department of Respiratory Diseases, Shenli Oilfield Central Hospital, Dongying, Liaoning 257064, P.R. China
  • Pages: 6148-6155
    |
    Published online on: August 22, 2017
       https://doi.org/10.3892/mmr.2017.7326
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Abstract

The aim of the present study was to investigate the impact of N‑acetylcysteine (NAC) on the expression of reduced nicotinamide adenine dinucleotide phosphate oxidase 1 (Nox1), and the proliferation and apoptosis of pulmonary artery smooth muscle cells (PASMCs) in rats exhibiting monocrotaline (MCT)‑induced pulmonary hypertension, and to investigate the possible mechanisms and treatment roles of NAC in pulmonary vascular remodeling (PVR). A total of 18 Wistar rats were randomly divided into three groups: The control (C) group; the MCT (M) group; and the NAC (N) group. The right ventricular hypertrophy index (RVHI) and other indicators were recorded 6 weeks subsequently. Groups C and M were divided into two subgroups: Groups C1 and M1 (control); and group C2 and M2 group (treated with ML171). Group N was not sub‑divided. PASMCs were isolated, and the vascular remodeling and Nox1 positioning were observed. The expression of Nox mRNA in each group, and the proliferation, apoptosis, and superoxide dismutase (SOD) activity of PASMCs, prior to and following the ML171 treatment, were measured. NAC was able to decrease RVHI and other indicators (P<0.001). The mRNA expression of Nox1 and Nox4 in group M was significantly increased compared with group C (P<0.05), and NAC was able to significantly decrease the expression of these two factors in lung tissue (P<0.001). MCT‑PASMCs exhibited differences in Nox1 mRNA expression (P<0.001), and the total SOD activity was Nox1‑dependently increased (r=0.949; P<0.001). NAC was able to decrease Nox1‑derived reactive oxygen species in PASMCs, thereby improving PVR. Nox1 was able to increase SOD activity, thereby demonstrating its positive effect on the proliferation of MCT‑PASMCs.
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Copy and paste a formatted citation
Spandidos Publications style
Yu W, Ji W, Mi L and Lin C: Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells. Mol Med Rep 16: 6148-6155, 2017.
APA
Yu, W., Ji, W., Mi, L., & Lin, C. (2017). Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells. Molecular Medicine Reports, 16, 6148-6155. https://doi.org/10.3892/mmr.2017.7326
MLA
Yu, W., Ji, W., Mi, L., Lin, C."Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells". Molecular Medicine Reports 16.5 (2017): 6148-6155.
Chicago
Yu, W., Ji, W., Mi, L., Lin, C."Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells". Molecular Medicine Reports 16, no. 5 (2017): 6148-6155. https://doi.org/10.3892/mmr.2017.7326
Copy and paste a formatted citation
x
Spandidos Publications style
Yu W, Ji W, Mi L and Lin C: Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells. Mol Med Rep 16: 6148-6155, 2017.
APA
Yu, W., Ji, W., Mi, L., & Lin, C. (2017). Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells. Molecular Medicine Reports, 16, 6148-6155. https://doi.org/10.3892/mmr.2017.7326
MLA
Yu, W., Ji, W., Mi, L., Lin, C."Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells". Molecular Medicine Reports 16.5 (2017): 6148-6155.
Chicago
Yu, W., Ji, W., Mi, L., Lin, C."Mechanisms of N‑acetylcysteine in reducing monocrotaline‑induced pulmonary hypertension in rats: Inhibiting the expression of Nox1 in pulmonary vascular smooth muscle cells". Molecular Medicine Reports 16, no. 5 (2017): 6148-6155. https://doi.org/10.3892/mmr.2017.7326
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