Title |
Rewiring of regenerated axons by combining treadmill training with semaphorin3A inhibition
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Published in |
Molecular Brain, March 2014
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DOI | 10.1186/1756-6606-7-14 |
Pubmed ID | |
Authors |
Liang Zhang, Shinjiro Kaneko, Kaoru Kikuchi, Akihiko Sano, Miho Maeda, Akiyoshi Kishino, Shinsuke Shibata, Masahiko Mukaino, Yoshiaki Toyama, Meigen Liu, Toru Kimura, Hideyuki Okano, Masaya Nakamura |
Abstract |
Rats exhibit extremely limited motor function recovery after total transection of the spinal cord (SCT). We previously reported that SM-216289, a semaphorin3A inhibitor, enhanced axon regeneration and motor function recovery in SCT adult rats. However, these effects were limited because most regenerated axons likely do not connect to the right targets. Thus, rebuilding the appropriate connections for regenerated axons may enhance recovery. In this study, we combined semaphorin3A inhibitor treatment with extensive treadmill training to determine whether combined treatment would further enhance the "rewiring" of regenerated axons. In this study, which aimed for clinical applicability, we administered a newly developed, potent semaphorin3A inhibitor, SM-345431 (Vinaxanthone), using a novel drug delivery system that enables continuous drug delivery over the period of the experiment. |
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