... and settling. Pharmacological activation of Wnt signaling in pigmented mice by lithium (Li + ) treatment in vivo reduces the number of Zic2-positive RGCs, which are normally fated to project ipsilaterally, to numbers observed in the albino retina. These results implicate Wnt signaling from the RPE to neural...

... binding regions of five major TFs. Analysis of in vivo biotinylated ZIC2, OTX2, SOX2, POU5F1 and POU3F1 binding in EpiSCs identified several new features. (1) Megabase-scale genomic domains rich in ZIC2 peaks and genes alternate with those rich in POU3F1 but sparse in genes, reflecting the clustering...

... these are genes that encode the secreted growth factor Sonic hedgehog (Shh)and the transcription factors Six3 and Zic2. In the mouse, Six3 and Shh activate each other's transcription, but a role for Zic2 in this interaction has not been tested. We demonstrate that in zebrafish, as in mouse, Hh signaling activates...

... the binocular visual pathway. The zinc-finger transcription factor Zic2 and a member of the Eph family of receptor tyrosine kinases, EphB1, are both essential for proper development of the ipsilateral projection at the mammalian optic chiasm midline. Here, we demonstrate in mouse by functional experiments...

... for early development, we isolated a truncated cDNA for maternal Zic2 ( tZic2 ), encoding a zinc-finger transcription factor. The predicted tZic2 protein lacked the N-terminal region, but retained the zinc-finger domain. When expressed in embryos, tZic2 inhibited head and axial development,and blocked...

... 28 9 2004 © 2004. 2004 Pre-placodal ectoderm Neural crest foxD3 zic2 sox2 sox3 keratin dlx5 dlx6 Cell fate determination Patterning Xenopus It was discovered over a century ago that the cranial sensory organs of vertebrates arise from discrete areas...

... diencephalon during the formation of the optic chiasm. We report here that in embryos lacking Foxd1,both retinal development and chiasm morphogenesis are disrupted. In the Foxd1 deficient retina, proteins designating the ipsilateral projection, such as Zic2 and EphB1, are missing, and the domain of Foxg1 (BF-1...

... the antineurogenic transcriptional repressors Xhairy2 and Zic2 , and by repressing p27Xic1 . The effects of Xrx1 on proliferation,neurogenesis and gene expression are restricted to the most rostral region of the embryo, implicating this gene as an anterior regulator of neurogenesis. References Andreazzoli, M...