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Development of Functional Human Embryonic Stem Cell-Derived Neurons in Mouse Brain
Alysson R. Muotri, Kinichi Nakashima, Nicolas Toni, Vladislav M. Sandier and Fred H. Gage
Proceedings of the National Academy of Sciences of the United States of America
Vol. 102, No. 51, Enzymatic Rescue of Myelination (Dec. 20, 2005), pp. 18644-18648
Published by: National Academy of Sciences
Stable URL: http://www.jstor.org/stable/4152670
Page Count: 5
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Human embryonic stem cells are pluripotent entities, theoretically capable of generating a whole-body spectrum of distinct cell types. However, differentiation of these cells has been observed only in culture or during teratoma formation. Our results show that human embryonic stem cells implanted in the brain ventricles of embryonic mice can differentiate into functional neural lineages and generate mature, active human neurons that successfully integrate into the adult mouse forebrain. Moreover, this study reveals the conservation and recognition of common signals for neural differentiation throughout mammalian evolution. The chimeric model will permit the study of human neural development in a live environment, paving the way for the generation of new models of human neurodegenerative and psychiatric diseases. The model also has the potential to speed up the screening process for therapeutic drugs.
Proceedings of the National Academy of Sciences of the United States of America © 2005 National Academy of Sciences