Functional trajectories during innate spinal cord repair

Frontiers in Molecular Neuroscience

Molecular Neuroscience

Lili Zhou¹  Catrina Reyes¹  Mayssa H. Mokalled¹  Brooke Burris¹  Nicholas O. Jensen¹  Hunter Yamada¹  Zachary Pincus² 

[1] Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, United States;Center of Regenerative Medicine, Washington University School of Medicine, St. Louis, MO, United States;Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, United States;Department of Genetics, Washington University School of Medicine, St. Louis, MO, United States;

关键词: spinal cord regeneration;    zebrafish;    functional recovery;    swim assay;    spinal cord injury;   

DOI  :  10.3389/fnmol.2023.1155754

 received in 2023-01-31, accepted in 2023-05-26,  发布年份 2023

来源: Frontiers

【 摘 要 】

Adult zebrafish are capable of anatomical and functional recovery following severe spinal cord injury. Axon growth, glial bridging and adult neurogenesis are hallmarks of cellular regeneration during spinal cord repair. However, the correlation between these cellular regenerative processes and functional recovery remains to be elucidated. Whereas the majority of established functional regeneration metrics measure swim capacity, we hypothesize that gait quality is more directly related to neurological health. Here, we performed a longitudinal swim tracking study for 60 individual zebrafish spanning 8 weeks of spinal cord regeneration. Multiple swim parameters as well as axonal and glial bridging were integrated. We established rostral compensation as a new gait quality metric that highly correlates with functional recovery. Tensor component analysis of longitudinal data supports a correspondence between functional recovery trajectories and neurological outcomes. Moreover, our studies predicted and validated that a subset of functional regeneration parameters measured 1 to 2 weeks post-injury is sufficient to predict the regenerative outcomes of individual animals at 8 weeks post-injury. Our findings established new functional regeneration parameters and generated a comprehensive correlative database between various functional and cellular regeneration outputs.

【 授权许可】

Unknown   
Copyright © 2023 Jensen, Burris, Zhou, Yamada, Reyes, Pincus and Mokalled.