Rapid Mechanically Controlled Rewiring of Neuronal Circuits.
JOURNAL OF NEUROSCIENCE(2016)
Abstract
CNS injury may lead to permanent functional deficits because it is still not possible to regenerate axons over long distances and accurately reconnect them with an appropriate target. Using rat neurons, microtools, and nanotools, we show that new, functional neurites can be created and precisely positioned to directly (re) wire neuronal networks. We show that an adhesive contact made onto an axon or dendrite can be pulled to initiate a new neurite that can be mechanically guided to form new synapses at up to 0.8 mm distance in <1 h. Our findings challenge current understanding of the limits of neuronal growth and have direct implications for the development of new therapies and surgical techniques to achieve functional regeneration.
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Key words
atomic force microscopy,axonal growth,electrophysiology,neurodegenerative disease,neuronal networks,neuronal regeneration
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