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Xue X, You Y, Tao J, Ye X, Huang J, Yang S, Lin Z, Hong Z, Peng J, Chen L. Electro-acupuncture at points of Zusanli and Quchi exerts anti-apoptotic effect through the modulation of PI3K/Akt signaling pathway. Neurosci Lett 2013; 558:14-9. [PMID: 24157854 DOI: 10.1016/j.neulet.2013.10.029] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/09/2013] [Accepted: 10/13/2013] [Indexed: 10/26/2022]
Abstract
We evaluated the neuroprotective effect of electro-acupuncture (EA) on cerebral ischemia-reperfusion (IR) injury and deeply investigated the relationship between this neuroprotective effect and PI3K/Akt pathway. Rats underwent focal cerebral IR injured by suture method and received the in vivo therapeutic efficacy of EA at points of Zusanli(ST36) and Quchi(LI11) after the operation. We found that the EA treatment significantly (p<0.05) improved neurological deficit and cerebral infarction. Furthermore, EA profoundly activated PI3K/Akt signaling resulted in the inhibition of cerebral cell apoptosis in the ischemic penumbra. Simultaneously EA increased the expression of PI3K, p-Akt, p-Bad and Bcl-2 at the protein level and the expression of Bcl-2 at the mRNA level. On the contrary, EA inhibited the Bax and cleaved Caspase-3-positive expression. The selective PI3K inhibitor LY294002 compromised EA-induced neuroprotective effects and reduced the elevation of p-Akt, p-Bad and Bcl-2 levels. Our data suggested that the PI3K/Akt pathway played a critical role in mediating the neuroprotective effects of EA treatment at points of Zusanli and Quchi after the ischemic stroke.
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Affiliation(s)
- Xiehua Xue
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Yongmei You
- MOE Key Laboratory of Traditional Chinese Medicine on Osteology and Traumatology and Exercise Rehabilitation, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Jing Tao
- MOE Key Laboratory of Traditional Chinese Medicine on Osteology and Traumatology and Exercise Rehabilitation, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China.
| | - Xiaoqian Ye
- Fujian Key Laboratory of Exercise Rehabilitation, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Jia Huang
- Fujian Key Laboratory of Exercise Rehabilitation, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Shanli Yang
- Fujian Key Laboratory of Exercise Rehabilitation, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Zhicheng Lin
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Zhenfeng Hong
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Jun Peng
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China
| | - Lidian Chen
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Minhou Shangjie, Fuzhou, Fujian 350108, PR China.
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