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Breakthrough in Spinal Cord Injury Treatment offers hope for Paralysis patients
Overview
A recent study published in the journal Science has found that directing axon regeneration from specific neuronal subpopulations to their natural target regions is crucial for substantial recovery of walking function after complete spinal cord injury in mice, highlighting the importance of reestablishing natural projections in axon regeneration strategies for restoring lost neurological functions.
The study has shed light on a promising approach to treat spinal cord injuries (SCI) and potentially restore lost neurological functions. While axon regeneration has been achieved in SCI, meaningful functional recovery has remained challenging. Researchers have now found that directing axon regeneration from specific neuronal subpopulations to their natural target regions is the key to restoring crucial functions like walking after SCI.
Using projection-specific and comparative single-nucleus RNA sequencing techniques, scientists identified the neuronal subpopulations responsible for restoring walking ability following incomplete SCI. The study showed that coaxing the transected axons of these neurons to their natural target regions through chemical attraction and guidance led to significant improvements in walking function after complete SCI in mice. In contrast, regenerating axons across the lesion without such guidance had no substantial effect.
This discovery holds immense promise for individuals who have suffered from spinal cord injuries, which often result in life-altering consequences, including paralysis. The findings suggest that merely stimulating axon regrowth may not be sufficient; it is equally crucial to ensure that these regenerated axons reach their intended destinations in the spinal cord.
Reference: SCIENCE, 21 Sep 2023, Vol 381, Issue 6664, pp. 1338-1345
DOI: 10.1126/science.adi6412
Speakers
Isra Zaman
B.Sc Life Sciences, M.Sc Biotechnology, B.Ed