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Cinepazide maleate protects PC12 cells against oxygen-glucose deprivation-induced injury.

Abstract
Our previous study showed that cinepazide maleate (CM) was as effective and safe as mildronate in the treatment of acute ischemic stroke in a randomized, double-blind, active-controlled phase II multicenter trial, but underlying mechanism(s) is not well understood. As an extending study, here we demonstrated that CM could protect neuronal cells by affecting mitochondrial functions. PC12 cells were exposed to 2.5 h oxygen-glucose deprivation (OGD) followed by a 24 h reoxygenation, and then treated with different concentrations (1, 10, 100 μM) of CM. Among various concentrations, 10 μM CM exhibited most significant protection on PC12 cells against OGD injury. CM was found to suppress OGD-induced oxidative stress, as supported by its capability of reducing intracellular reactive oxygen species and malondialdehyde production and enhancing superoxide dismutase activity. Importantly, our results showed that CM could preserve mitochondrial functions, as revealed by its capability of stabilizing mitochondrial membrane potential, improving OGD-induced suppression of mitochondrial respiratory complex activities and enhancing ATP production. In summary, our present study provides the first evidence that CM can protect neuronal cells against OGD injury by preserving mitochondrial functions.
AuthorsJun Zhao, Ya Bai, Chen Zhang, Xiao Zhang, Yun-Xia Zhang, Jing Chen, Lize Xiong, Ming Shi, Gang Zhao
JournalNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology (Neurol Sci) Vol. 35 Issue 6 Pg. 875-81 (Jun 2014) ISSN: 1590-3478 [Electronic] Italy
PMID24374788 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Neuroprotective Agents
  • Piperazines
  • cinepazide
  • Glucose
  • Oxygen
Topics
  • Animals
  • Glucose (physiology)
  • Mitochondria (drug effects, metabolism)
  • Neuroprotective Agents (pharmacology)
  • Oxidative Stress (drug effects)
  • Oxygen (metabolism)
  • PC12 Cells
  • Piperazines (pharmacology)
  • Rats

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