中国神经再生研究(英文版) ›› 2017, Vol. 12 ›› Issue (8): 1338-1346.doi: 10.4103/1673-5374.213556

• 原著:退行性病与再生 • 上一篇    下一篇

地黄提取物保护谷氨酸损伤PC12细胞:能量及自噬代谢相关信号通路的参与

  

  • 收稿日期:2017-07-22 出版日期:2017-08-15 发布日期:2017-08-15
  • 基金资助:

    中国国家自然科学基金项目(8147130881271412),辽宁省自然科学基金项目(2014023052),大连市科技项目(2015SF11GH094

Dried Rehmannia root protects against glutamateinduced cytotoxity to PC12 cells through energy metabolism-related pathways

Yong Liu1, 2, Lei Liu1, Xi-xiang Ying3, Wen-juan Wei1, Chao Han1, Yang Liu1, Chun-hui Han1, 4, Ai-jing Leng4, Jing-yun Ma1, Jing Liu1   

  1. 1 Regenerative Medicine Center, the First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China;                                       
    2 Department of Traditional Chinese Medicine, the First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China;                       
    3 Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning Province, China;                     
    4 Traditional Chinese Medicine Pharmacy, the First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
  • Received:2017-07-22 Online:2017-08-15 Published:2017-08-15
  • Contact: Jing Liu, Ph.D.,liujing.dlrmc@hotmail.com.
  • Supported by:

    This work was supported by the National Natural Science Foundation of China, No. 81471308, 81271412; the Natural Science  Foundation of Liaoning Province of China, No. 2014023052; and the Dalian Science and Technology Project Foundation of China, No. 2015SF11GH094.

摘要:

地黄提取物治疗神经退行性疾病的辅助治疗效果明显,但其机制尚不清楚。实验以谷氨酸诱导的PC12细胞作为神经退行性疾病的细胞模型,以70%,50%,30%的地黄水提取物进行干预。结果表明,不同浓度地黄水提取物可明显增加谷氨酸损伤细胞的活性,减少乳酸脱氢酶释放,抑制细胞凋亡,增加NADH与NAD浓度,同时增加细胞中ATP水平,提升膜电位,降低LC3水平。上述结果表明地黄水提取物可通过能量以及自噬代谢相关通路对损伤PC12细胞发挥保护作用。

orcid:0000-0002-3132-5647(Yong Liu)

关键词: 神经再生, 地黄水提取物, 谷氨酸, PC12细胞, 自噬, 能量代谢

Abstract:

Rehmannia has been shown to be clinically effective in treating neurodegenerative diseases; however, the neuroprotective mechanisms  remain unclear. In this study, we established a model of neurodegenerative disease using PC12 cytotoxic injury induced by glutamate. The cells were treated with 20 mM glutamate in the absence or presence of water extracts of dried Rehmannia root of varying concentrations (70%, 50% and 30%). The different concentrations of Rehmannia water extract significantly increased the activity of glutamate-injured cells, reduced the release of lactate dehydrogenase, inhibited apoptosis, increased the concentrations of NADH, NAD and ATP in cells, ameliorated mitochondrial membrane potential, and reduced the levels of light chain 3. Taken together, our findings demonstrate that Rehmannia water extracts exert a cytoprotective effect against glutamate-induced PC12 cell injury via energy metabolism-related pathways.

Key words: nerve regeneration, Rehmannia water extracts, glutamate, PC12 cells, autophagy, energy metabolism, neural regeneration