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dc.contributor.authorYao, Li
dc.contributor.authorDaly, William T.
dc.contributor.authorNewland, Ben
dc.contributor.authorYao, Sheng
dc.contributor.authorWang, Wei
dc.contributor.authorChen, BingKun
dc.contributor.authorMadigan, Nicolas
dc.contributor.authorWindebank, Anthony J.
dc.contributor.authorPandit, Abhay S.
dc.identifier.citationYao, Li; Daly, William T.; Newland, Ben; Yao, Sheng; Wang, Wei; Chen, BingKun; Madigan, Nicolas; Windebank, Anthony; Pandit, Abhay S. 2013. Improved axonal regeneration of transected spinal cord mediated by multichannel collagen conduits functionalized with neurotrophin-3 gene. Gene Therapy, vol. 20:no. 12:ppg. 1149-1157en_US
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractFunctionalized biomaterial scaffolds targeted at improving axonal regeneration by enhancing guided axonal growth provide a promising approach for the repair of spinal cord injury. Collagen neural conduits provide structural guidance for neural tissue regeneration, and in this study it is shown that these conduits can also act as a reservoir for sustained gene delivery. Either a G-luciferase marker gene or a neurotrophin-3-encoding gene, complexed to a non-viral, cyclized, PEGylated transfection vector, was loaded within a multichannel collagen conduit. The complexed genes were then released in a controlled fashion using a dual release system both in vitro and in vivo. For evaluation of their biological performance, the loaded conduits were implanted into the completely transected rat thoracic spinal cord (T8-T10). Aligned axon regeneration through the channels of conduits was observed one month post-surgery. The conduits delivering neurotrophin-3 polyplexes resulted in significantly increased neurotrophin-3 levels in the surrounding tissue and a statistically higher number of regenerated axons versus the control conduits (P<0.05). This study suggests that collagen neural conduits delivering a highly effective non-viral therapeutic gene may hold promise for repair of the injured spinal cord.en_US
dc.description.sponsorshipScience Foundation Ireland Research Frontiers Program (Grant no.: 08/RFP/ENM1218)en_US
dc.publisherNature Publishing Groupen_US
dc.relation.ispartofseriesGene Therapy;v.20:no.12
dc.subjectNon-viral gene deliveryen_US
dc.subjectNeural conduitsen_US
dc.subject2-(Dimethylamino)ethyl methacrylateen_US
dc.subjectSpinal cord injuryen_US
dc.titleImproved axonal regeneration of transected spinal cord mediated by multichannel collagen conduits functionalized with neurotrophin-3 geneen_US

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