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  • Title: Long-term fate of human telencephalic progenitor cells grafted into the adult mouse brain: effects of previous amplification in vitro.
    Author: Buchet D, Buc-Caron MH, Sabaté O, Lachapelle F, Mallet J.
    Journal: J Neurosci Res; 2002 May 01; 68(3):276-83. PubMed ID: 12111857.
    Abstract:
    We assessed the developmental potential of human telencephalic progenitor cells, with and without previous amplification in vitro, following grafting into the nonlesioned adult mouse CNS. Cell suspensions, shown to contain neuroepithelium-like and neuroblast-like cells, were injected into the subventricular zone (SVZ) and the striatum. These two regions were selected for comparative studies because one, the SVZ, is mitotically active, whereas the other, the striatum, is mitotically inactive. In situ hybridization with a human-specific Alu probe showed that the cells survived for up to 30 weeks in both targets and migrated away from the injection site. Fresh cells continued to proliferate and gave rise to very extended grafts before differentiating into neurons and glia. We further show that, when grown in vitro prior to grafting, human cells acquired new properties: Their proliferation was very limited, and they differentiated more rapidly. This study therefore provides new information about the use of these cells, which are a potential tool for both cellular and gene therapy.
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