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SHEN Qirui, LI Yonghua, ZHANG Wenjie, WANG Pei. Oxidative stress induced by homocysteine via activating JNK signaling pathway in vascular smooth muscle cells[J]. Journal of Pharmaceutical Practice and Service, 2018, 36(6): 499-502,511. doi: 10.3969/j.issn.1006-0111.2018.06.005
Citation: SHEN Qirui, LI Yonghua, ZHANG Wenjie, WANG Pei. Oxidative stress induced by homocysteine via activating JNK signaling pathway in vascular smooth muscle cells[J]. Journal of Pharmaceutical Practice and Service, 2018, 36(6): 499-502,511. doi: 10.3969/j.issn.1006-0111.2018.06.005

Oxidative stress induced by homocysteine via activating JNK signaling pathway in vascular smooth muscle cells

doi: 10.3969/j.issn.1006-0111.2018.06.005
  • Received Date: 2018-04-28
  • Rev Recd Date: 2018-06-01
  • Objective To investigate the influence and the underlying mechanisms of homocysteine on oxidative stress production in vascular smooth muscle cells (VSMC). Methods A10 cell line (a kind of VSMC) was cultured in vitro. Three different concentrations of homocysteine (5, 30 and 100 μmol/L) were added into the medium for 48 hours and then cells were lysed for determination of reactive oxygen species (ROS) production, H2O2 level and total anti-oxidant capacity. Moreover, the effects of homocysteine on JNK signaling pathway were evaluated by immunoblotting. Results ROS production (P<0.05) in VSMC were induced by three different concentrations of homocysteine (5, 30 and 100 μmol/L). Two concentrations of homocysteine (30 and 100 μmol/L) increased H2O2 content and decreased T-AOC. Moreover, homocysteine induced phosphorylation of JNK in VSMC in a dose-dependent manner (P<0.05). Conclusion Oxidative stress induced by homocysteine via activating JNK signaling pathway in VSMC.
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Oxidative stress induced by homocysteine via activating JNK signaling pathway in vascular smooth muscle cells

doi: 10.3969/j.issn.1006-0111.2018.06.005

Abstract: Objective To investigate the influence and the underlying mechanisms of homocysteine on oxidative stress production in vascular smooth muscle cells (VSMC). Methods A10 cell line (a kind of VSMC) was cultured in vitro. Three different concentrations of homocysteine (5, 30 and 100 μmol/L) were added into the medium for 48 hours and then cells were lysed for determination of reactive oxygen species (ROS) production, H2O2 level and total anti-oxidant capacity. Moreover, the effects of homocysteine on JNK signaling pathway were evaluated by immunoblotting. Results ROS production (P<0.05) in VSMC were induced by three different concentrations of homocysteine (5, 30 and 100 μmol/L). Two concentrations of homocysteine (30 and 100 μmol/L) increased H2O2 content and decreased T-AOC. Moreover, homocysteine induced phosphorylation of JNK in VSMC in a dose-dependent manner (P<0.05). Conclusion Oxidative stress induced by homocysteine via activating JNK signaling pathway in VSMC.

SHEN Qirui, LI Yonghua, ZHANG Wenjie, WANG Pei. Oxidative stress induced by homocysteine via activating JNK signaling pathway in vascular smooth muscle cells[J]. Journal of Pharmaceutical Practice and Service, 2018, 36(6): 499-502,511. doi: 10.3969/j.issn.1006-0111.2018.06.005
Citation: SHEN Qirui, LI Yonghua, ZHANG Wenjie, WANG Pei. Oxidative stress induced by homocysteine via activating JNK signaling pathway in vascular smooth muscle cells[J]. Journal of Pharmaceutical Practice and Service, 2018, 36(6): 499-502,511. doi: 10.3969/j.issn.1006-0111.2018.06.005
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