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Title: Generation of embryonic stem cells and transgenic mice expressing green fluorescence protein in midbrain dopaminergic neurons
Authors: Zhao, Suling
Maxwell, Sarah L
Jimenez-Beristain, Antonio
Vives, Joaquim
Kuehner, Eva
Zhao, Jiexin
O'Brian, Carmel
de Felipe, Carmen
Semina, Elena
Issue Date: 2004
Citation: European Journal of Neuroscience, Volume 19, Issue 5, pp. 1133 - 1400 (2004)
Publisher: Blackwells
Abstract: We have generated embryonic stem cells and transgenic mice with green fluorescent protein (GFP) inserted into the Pitx3 locus via homologous recombination. In the central nervous system, Pitx3 directed GFP was visualised in dopaminergic (DA) neurons in the substantia nigra and ventral tegmental area. Live primary DA neurons can be isolated by fluorescence-activated cell sorting from these transgenic mouse embryos. In culture, Pitx3-GFP is co-expressed in a proportion of ES-derived DA neurons. Furthermore, stem cell-derived Pitx3-GFP expressing DA neurons responded to neurotrophic factors and were sensitive to DA specific neurotoxin N-4-methyl-1, 2, 3, 6-tetrahydropyridine. We anticipate that the Pitx3-GFP ES cells could be used as a powerful model system for functional identification of molecules governing mDA neuron differentiation and for preclinical research including pharmaceutical drug screen and transplantation. The Pitx3 knock-in mice, on the other hand, could be used for purifying primary neurons for molecular studies associated with the midbrain-specific DA phenotype at a level not previously feasible. These mice would also provide a useful tool to study DA fate determination from embryo- or adult-derived neural stem cells.
Keywords: Dopaminergic neuron
green fluorescent protein (GFP)
homologous recombination
homeobox transcription factor
stem cell
URI: DOI: 10.1111/j.1460-9568.2004.03206.x
ISSN: 0264-1615
Appears in Collections:Biological Sciences publications

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