Use of engineered peripheral nerve autografts for spinal cord repair

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Abstract
We developed a clinically compatible protocol for the production of engineered tissue for grafting into the injured spinal cord. We used autologous tissue derived from pre-ligated peripheral nerves, which avoids supply, immunocompatibility and ethical hinderances, combined with non-viral transfection, which is a versatile and non-immunogenic gene transfer method. In-vitro transfection of glial cells or primary tissue from pre-ligated rat peripheral nerve with the neurotrophic gene brain-derived neurotrophic factor significantly enhanced its expression, when quantified or labelled by immunofluorescence. Engineered tissue expressed brain-derived neurotrophic factor after being grafted into the spinal cord of rats that had received spinal contusion injury 3 weeks before. Anatomical and functional assays of repair, conducted on a small cohort, showed that the treatment may promote axonal regeneration and improve motor performance.No Full Tex

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