中国神经再生研究(英文版) ›› 2016, Vol. 11 ›› Issue (10): 1545-1548.doi: 10.4103/1673-5374.193222

• 综述:神经损伤修复保护与再生 • 上一篇    下一篇

多聚(ADP-核糖)聚合酶PARP抑制剂可促进神经保护和改善周围损伤后的疼痛

  

  1. 1 Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)-Hyderabad, Balanagar, India 2 Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER)-Guwahati, Assam, India 3 Pharmacology Division, Indian Institute of Chemical Technology (IICT), Hyderabad, India #Present address for Prashanth Komirishetty: Division of Neurology, Department of Medicine, University of Alberta, 2E3.26 Walter C Mackenzie, Health Sciences Center, Edmonton, AB, Canada
  • 收稿日期:2016-09-05 出版日期:2016-10-31 发布日期:2016-10-31
  • 通讯作者: Ashutosh Kumar, Ph.D., ashutosh.niperhyd@gov.in; ashutoshniper@gmail.com.
  • 基金资助:

    印度科技部基金

Poly(ADP-ribose) polymerase inhibition reveals a potential mechanism to promote neuroprotection and treat neuropathic pain

Prashanth Komirishetty1, #, Aparna Areti1, Ranadeep Gogoi2, Ramakrishna Sistla3, Ashutosh Kumar1,   

  • Received:2016-09-05 Online:2016-10-31 Published:2016-10-31
  • Supported by:

    Authors would like to thank Department of Biotechnology Govt of India, for their fnancial support to Dr. Ashutosh Kumar via grant BT/527/NE/TBP/2013, to carry out the current study. Authors would also like to acknowledge the fnancial support from Department of Pharmaceuticals, Ministry of Chemical and Fertilizers and NIPER Hyderabad for their support

摘要:

文章探讨了氧化/亚硝化应激和PARP过度活化的在坐骨神经慢性压榨伤诱导的神经性疼痛的动物模型中的作用。坐骨神经损伤致氧化应激标记物像亚硝酸盐和丙二醛水平显著上升,坐骨神经和脊髓的组织的指示硝基氧化应激。外周神经损伤后的PARP过度活化已被证明参与炎性坏死事件。PARP诱导的炎症作用也是多方面的,它也可作为辅因子激活NF-κB致炎表达水平及提高细胞因子TNF-α,IL-6,iNOS和COX-2在外周神经组织中的表达。因此,PARP-诱导神经炎症加重外周神经损伤后细胞存活的神经变性过程。CCI诱导氧化/亚硝化应激和炎症反应,从而引发痛觉过敏和异常性疼痛。有趣的是,PARP抑制剂使大鼠14天内恢复坐骨神经功能。他们还改善坐骨神经损伤诱导热痛觉过敏、冷异常性疼痛,动力机械异常性疼痛、机械性痛觉过敏、机械异常性疼痛和自发性疼痛。PARP抑制剂对坐骨神经损伤引起轴突变性和脱髓鞘损伤有治疗潜力。作者的研究还表明,与PARP抑制剂治疗坐骨神经损伤引起的生物能量危机、神经细胞凋亡、细胞功能障碍和神经炎症通过改进NAD和ATP水平,减少TUNEL阳性细胞, 减轻PAR免疫反应和NF-κB激活神经损伤后脊髓损伤。

orcid: 0000-0001-6659-4751 (Ashutosh Kumar)

Abstract:

Neuropathic pain is triggered by the lesions to peripheral nerves which alter their structure and function. Neuroprotective approaches that limit the pathological changes and improve the behavioral outcome have been well explained in di?erent experimental models of neuropathy but translation of such strategies to clinics has been disappointing. Experimental evidences revealed the role of free radicals, especially peroxynitrite afer the nerve injury. Tey provoke oxidative DNA damage and consequent over-activation of the poly(ADP-ribose) polymerase (PARP) upregulates pro-in?ammatory pathways, causing bioenergetic crisis and neuronal death. Along with these changes, it causes mitochondrial dysfunction leading to neuronal apoptosis. In related preclinical studies agents that neutralize the free radicals and pharmacological inhibitors of PARP have shown benefts in treating experimental neuropathy. Tis article reviews the involvement of PARP over-activation in trauma induced neuropathy and therapeutic signifcance of PARP inhibitors in the experimental neuropathy and neuropathic pain.

Key words: neuropathic pain, poly(ADP-ribose) polymerase, neuroin?ammation, oxidative stress, bioenergetic crisis