中国神经再生研究(英文版) ›› 2017, Vol. 12 ›› Issue (7): 1040-1043.doi: 10.4103/1673-5374.211176

• 综述:神经损伤修复保护与再生 • 上一篇    下一篇

促进轴突修复的小分子:14-3-3衔接蛋白

  

  • 收稿日期:2017-06-19 出版日期:2017-07-15 发布日期:2017-07-15
  • 基金资助:

     

    此项研究得到了加拿大卫生研究院和加拿大多发性硬化症协会的赞助支持。

Targeting 14-3-3 adaptor protein-protein interactions to stimulate central nervous system repair

Andrew Kaplan, Alyson E. Fournier   

  1. Department of Neurology and Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, Québec, Canada
  • Received:2017-06-19 Online:2017-07-15 Published:2017-07-15
  • Contact: Andrew Kaplan, Ph.D., Andrew.kaplan@mail.mcgill.ca.
  • Supported by:

    Research in the AEF lab was funded by the Canadian Institutes for Health Research and the Multiple Sclerosis Society of Canada.

摘要:

 

随着各种用于修复损伤轴突的药物的开发,中枢神经系统损伤的治疗也取得了令人瞩目的结果。在这一领域中,已被得到认可的小分子药物包括紫杉醇、埃坡霉素、加巴沙星和他汀类药物。这些药物的临床应用安全性较好,可被用于治疗CNS损伤。然而,继续寻求可以进一步优化和针对CNS适应症的新化合物仍然十分重要。
 

文章认为14-3-3衔接蛋白与小分子fusicoccin-A相互作用的稳定性可以促进轴突生长和再生。14-3-3s是具有高度保守结构和功能的调节性衔接蛋白家族。FC-A的多结构和生化分析为14-3-3(复合性)囊状成药性提供了有力的概念验证,人们也努力地识别着人造14-3-3稳定剂。使14-3-3稳定的肽相互作用,其高通量化合物筛查,可以识别出两种结构明显不同的分子、表苯丁抑制素和吡咯烷酮1。14-3-3和肽所造囊体中的化合物组合是晶体结构,而这显示出了独特的相互作用模式,即增强了其复合物稳定性的能力(Rose et al., 2010)。这些研究提供了概念验证,证明了14-3-3衔接蛋白可以同合成小分子制药。FC-A的进一步优化或特定小分子的开发可以为开发修复受损的中枢神经系统轴突药物提供新的指引。

ORCID:0000-0002-9336-4369(Andrew Kaplan)

Abstract:

The goal of developing treatments for central nervous system (CNS) injuries is becoming more attainable with the recent identification of various drugs that can repair damaged axons. These discoveries have stemmed from screening efforts, large expression datasets and an improved understanding of the cellular and molecular biology underlying axon growth. It will be important to continue searching for new compounds that can induce axon repair. Here we describe how a family of adaptor proteins called 14-3-3s can be targeted using small molecule drugs to enhance axon outgrowth and regeneration. 14-3-3s bind to many functionally diverse client proteins to regulate their functions. We highlight the recent discovery of the axon-growth promoting activity of fusicoccin-A, a fungus-derived small molecule that stabilizes 14-3-3 interactions with their client proteins. Here we discuss how fusicoccin-A could serve as a starting point for the development of drugs to induce CNS repair.

Key words: axon regeneration, 14-3-3, gcnl, fusicoccin, optic nerve, spinal cord injury