Human Deep Cortical Neurons Promote Regeneration and Recovery After Cervical Spinal Cord Injury
Doulames, V. M.; Weimann, J.; Plant, G. W.
Show abstract
Cervical spinal cord injuries (SCI) sever and permanently disrupt sensorimotor neural circuitry. Restoring connectivity within the damaged circuitry is critical to improving function. Herein we report robust regeneration of severed neural circuitry in a rat SCI model following transplantation of human induced pluripotent cells differentiated towards a deep cortical neuron lineage (iPSC-DCNs). In vivo, iPSC-DCNs: (1) integrated within the damaged cord and extended axons to caudal targets, (2) reversed SCI pathophysiology, (3) promoted robust regeneration of severed host supraspinal neural tracts, (4) and improved sensorimotor function. The results herein represent a significant paradigm shift in anatomical and functional outcomes over current preclinical/clinical models and demonstrates the survival and efficacy of human stem cell-derived cortical neurons in a SCI.
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