Journal
FRONTIERS IN CELLULAR NEUROSCIENCE
Volume 17, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fncel.2023.1237641
Keywords
spinal cord injury; transdifferentiation; direct reprogramming; nerve repair; neurons
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Spinal cord injury leads to loss of motor and sensory function, but effective treatments are lacking. Reprogramming-based neuronal transdifferentiation shows promise in spinal cord injury repair, but its mechanisms are not well understood. This review analyzes the cellular transdifferentiation mechanisms, discusses different molecular approaches and challenges, and provides new therapeutic ideas.
Spinal cord injury causes varying degrees of motor and sensory function loss. However, there are no effective treatments for spinal cord repair following an injury. Moreover, significant preclinical advances in bioengineering and regenerative medicine have not yet been translated into effective clinical therapies. The spinal cord's poor regenerative capacity makes repairing damaged and lost neurons a critical treatment step. Reprogramming-based neuronal transdifferentiation has recently shown great potential in repair and plasticity, as it can convert mature somatic cells into functional neurons for spinal cord injury repair in vitro and in vivo, effectively halting the progression of spinal cord injury and promoting functional improvement. However, the mechanisms of the neuronal transdifferentiation and the induced neuronal subtypes are not yet well understood. This review analyzes the mechanisms of resident cellular transdifferentiation based on a review of the relevant recent literature, describes different molecular approaches to obtain different neuronal subtypes, discusses the current challenges and improvement methods, and provides new ideas for exploring therapeutic approaches for spinal cord injury.
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