Conversion of Mouse and Human Fibroblasts into Functional Spinal Motor Neurons

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Conversion of Mouse and Human Fibroblasts into Functional Spinal Motor Neurons

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Title: Conversion of Mouse and Human Fibroblasts into Functional Spinal Motor Neurons
Author: Son, Esther Y.; Ichida, Justin K.; Wainger, Brian J.; Toma, Jeremy S.; Rafuse, Victor F.; Woolf, Clifford J.; Eggan, Kevin Carl

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Citation: Son, Esther Y., Justin K. Ichida, Brian J. Wainger, Jeremy S. Toma, Victor F. Rafuse, Clifford J. Woolf, and Kevin Eggan. 2011. “Conversion of Mouse and Human Fibroblasts into Functional Spinal Motor Neurons.” Cell Stem Cell 9 (3) (September): 205–218. doi:10.1016/j.stem.2011.07.014.
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Abstract: The mammalian nervous system is composed of a multitude of distinct neuronal subtypes, each with its own phenotype and differential sensitivity to degenerative disease. Although specific neuronal types can be isolated from rodent embryos or engineered from stem cells for translational studies, transcription factor mediated reprogramming might provide a more direct route to their generation. Here we report that the forced expression of select transcription factors is sufficient to convert mouse and human fibroblasts into induced motor neurons (iMNs). iMNs displayed a morphology, gene expression signature, electrophysiology, synaptic functionality, in vivo engraftment capacity and sensitivity to degenerative stimuli, similar to embryo-derived motor neurons. We show that the converting fibroblasts do not transit through a proliferative neural progenitor state, and thus form bona fide motor neurons via a route distinct from embryonic development. Our findings demonstrate that fibroblasts can be converted directly into a specific differentiated and functional neural subtype, the spinal motor neuron.
Published Version: doi:10.1016/j.stem.2011.07.014
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3188987/
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:25757741
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