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Open Access Green as soon as Postprint is submitted to ZB.
Loss- and gain-of-function analyses reveal targets of Pax6 in the developing mouse telencephalon.
Mol. Cell. Neurosci. 34, 99-119 (2007)
Appropriate neurogenesis and patterning of the forebrain requires the transcription factor Pax6, yet it is largely unknown how Pax6 exerts its effects at the molecular level. To characterize Pax6-mediated regulation of gene expression during murine forebrain neurogenesis, we performed microarray analysis with tissue from the dorsal Pax6-dependent telencephalon and the ventral Pax6-negative telencephalon at the onset of neurogenesis (E12) and at mid-neurogenesis (E15) in wild-type and Pax6-deficient mutant littermates. In the Pax6-deficient cortex the expression levels of various transcription factors involved in neurogenesis (like Satb2, Nfia, AP-2gamma, NeuroD6, Ngn2, Tbr2, Bhlhb5) and the retinoic acid signalling molecule Rlbp1 were reduced. Regulation by Pax6 could be confirmed upon electroporation of a Pax6- and a dominant-negative Pax6-containing vector into embryonic cortex. Taken together, our data reveal novel insights into the molecular pathways regulated by Pax6 during cortical neurogenesis. Most intriguingly, this analysis revealed time- and region-specific differences in Pax6-mediated transcription, explaining the specific function of Pax6 at early and later stages of neurogenesis.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Pax6; cortex; ganglioin eminence; small eye; elecephalon; microarray; electroporation; neurogenesis; retinoic acid signalling
ISSN (print) / ISBN
1044-7431
e-ISSN
1095-9327
Quellenangaben
Volume: 34,
Pages: 99-119
Publisher
Elsevier
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Stem Cell Research (ISF)