中国神经再生研究(英文版) ›› 2021, Vol. 16 ›› Issue (5): 939-943.doi: 10.4103/1673-5374.297060

• 综述:脑损伤修复保护与再生 • 上一篇    下一篇

脑卒中后神经系统恢复过程中皮质脊髓束的轴突重塑

  

  • 出版日期:2021-05-15 发布日期:2020-12-29

Axonal remodeling of the corticospinal tract during neurological recovery after stroke

Zhongwu Liu1, Hongqi Xin1, Michael Chopp1, 2    

  1. 1 Department of Neurology, Henry Ford Hospital, Detroit, MI, USA;  2 Department of Physics, Oakland University, Rochester, MI, USA
  • Online:2021-05-15 Published:2020-12-29
  • Contact: Zhong-Wu Liu, PhD, zwliu@neuro.hfh.edu.

摘要: https://orcid.org/0000-0002-8571-8112 (Zhongwu Liu) 

Abstract: Stroke remains the leading cause of long-term disability. Hemiparesis is one of the most common post-stroke motor deficits and is largely attributed to loss or disruption of the motor signals from the affected motor cortex. As the only direct descending motor pathway, the corticospinal tract (CST) is the primary pathway to innervate spinal motor neurons, and thus, forms the neuroanatomical basis to control the peripheral muscles for voluntary movements. Here, we review evidence from both experimental animals and stroke patients, regarding CST axonal damage, functional contribution of CST axonal integrity and remodeling to neurological recovery, and therapeutic approaches aimed to enhance CST axonal remodeling after stroke. The new insights gleaned from preclinical and clinical studies may encourage the development of more rational therapeutics with a strategy targeted to promote axonal rewiring for corticospinal innervation, which will significantly impact the current clinical needs of subacute and chronic stroke treatment.

Key words: axonal degeneration, axonal integrity, axonal remodeling, corticospinal tract, motor performance, neurological recovery, stroke, therapeutic strategy