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<i>OLE-lacZ</i> and <i>OLEa-lacZ</i> transgenes are predominantly expressed in oligodendrocytes.
Abstract
<p><b>(A)</b> The transgenic constructs consisting of OLE or OLEa, the minimal Hsp68 promoter (hsp68), the lacZ marker gene (lacZ) and a SV40 polyA signal (pA) are schematically shown. (<b>B</b>) Five founders were obtained after pronucleus injection of <i>OLE-lacZ</i> and <i>OLEa-lacZ</i> that inherited the transgene to their progeny and were expanded to lines. Three of them (OLE#4, OLE#5 and OLEa#5) did not show transgene expression. All other lines exhibited strong and selective expression in oligodendroglial cells with more than 80% of β-galactosidase positive cells in the CNS corresponding to cells of this lineage (+ and ++). In comparison, less than 20% of β-galactosidase positive cells in the CNS were identified as astrocytes (±) in several lines. Only OLE#2 and OLEa#4 exhibited occasional β-galactosidase labelling of neurons (±). A higher fraction of the oligodendroglial population expressed the transgene in lines OLE#1–3 (++) than in OLEa#1–4 (+). Outside the CNS, weak additional transgene expression was observed for several lines within the DRG, in cartilage or in vasculature as indicated.</p- Image
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- Cell Biology
- Genetics
- Molecular Biology
- Neuroscience
- Immunology
- Developmental Biology
- Biological Sciences not elsewhere classified
- Single Transcription Factor
- dorsal root ganglia
- Olig 2 gene
- myelin gene expression
- transcription factor Sox 10
- cell conversion strategies
- oligodendrocyte precursor cell stage
- Convert Satellite Glia
- Sox 10