Suppression of GRASP65 phosphorylation by tetrahydrocurcumin protects against cerebral ischemia/reperfusion injury via ERK signaling

  • Authors:
    • Bin Lin
    • Heng Yu
    • Yuting Lin
    • Chao Cai
    • Huoquan Lu
    • Xinbo Zhu
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  • Published online on: October 6, 2016     https://doi.org/10.3892/mmr.2016.5816
  • Pages: 4775-4780
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Abstract

The aim of the present study was to assess the neuroprotective effects of tetrahydrocurcumin (THC) in a mouse model of cerebral ischemia/reperfusion (I/R) injury, and to investigate the involvement of Golgi reassembly and stacking protein 65 (GRASP65) and the extracellular signal‑regulated kinase (ERK) signaling pathway. Cerebral I/R injury was induced using the Pulsinelli four‑vessel occlusion method. After 5 min of reperfusion, mice received THC (5, 10 or 25 mg/kg) or saline by intraperitoneal injection. After 24 h of reperfusion, mice underwent neurological evaluation. Infarct volumes were determined by triphenyltetrazolium chloride staining, and levels of superoxide dismutase and malondialdehyde were measured in brain tissue homogenates. Expression of GRASP65, phosphorylated‑GRASP65, ERK and phosphorylated‑ERK was determined by western blotting. THC induced a dose‑dependent decrease in the phosphorylation of ERK and GRASP65. Thus, THC attenuated I/R injury‑induced activation of the ERK signaling pathway and reduced the phosphorylation of GRASP65. THC exhibited a dose‑dependent protective effect against cerebral I/R injury, mediated by suppression of the ERK signaling pathway and a subsequent reduction in GRASP65 phosphorylation. The current study provided new information in the research of the cerebral ischemia‑reperfusion injury mechanism.
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November-2016
Volume 14 Issue 5

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

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Spandidos Publications style
Lin B, Yu H, Lin Y, Cai C, Lu H and Zhu X: Suppression of GRASP65 phosphorylation by tetrahydrocurcumin protects against cerebral ischemia/reperfusion injury via ERK signaling. Mol Med Rep 14: 4775-4780, 2016
APA
Lin, B., Yu, H., Lin, Y., Cai, C., Lu, H., & Zhu, X. (2016). Suppression of GRASP65 phosphorylation by tetrahydrocurcumin protects against cerebral ischemia/reperfusion injury via ERK signaling. Molecular Medicine Reports, 14, 4775-4780. https://doi.org/10.3892/mmr.2016.5816
MLA
Lin, B., Yu, H., Lin, Y., Cai, C., Lu, H., Zhu, X."Suppression of GRASP65 phosphorylation by tetrahydrocurcumin protects against cerebral ischemia/reperfusion injury via ERK signaling". Molecular Medicine Reports 14.5 (2016): 4775-4780.
Chicago
Lin, B., Yu, H., Lin, Y., Cai, C., Lu, H., Zhu, X."Suppression of GRASP65 phosphorylation by tetrahydrocurcumin protects against cerebral ischemia/reperfusion injury via ERK signaling". Molecular Medicine Reports 14, no. 5 (2016): 4775-4780. https://doi.org/10.3892/mmr.2016.5816