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Neuron 1997 Nov 01;195:981-94. doi: 10.1016/s0896-6273(00)80391-8.
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Xath5 participates in a network of bHLH genes in the developing Xenopus retina.

Kanekar S , Perron M , Dorsky R , Harris WA , Jan LY , Jan YN , Vetter ML .

We examined the function of basic-helix-loop-helix (bHLH) transcription factors during retinal neurogenesis. We identified Xath5, a Xenopus bHLH gene related to Drosophila atonal, which is expressed in the developing Xenopus retina. Targeted expression of Xath5 in retinal progenitor cells biased the differentiation of these cells toward a ganglion cell fate, suggesting that Xath5 can regulate the differentiation of retinal neurons. We examined the relationship between the three bHLH genes Xash3, NeuroD, and Xath5 during retinal neurogenesis and found that Xash3 is expressed in early retinoblasts, followed by coexpression of Xath5 and NeuroD in differentiating cells. We provide evidence that the expression of Xash3, NeuroD, and Xath5 is coupled and propose that these bHLH genes regulate successive stages of neuronal differentiation in the developing retina.

PubMed ID: 9390513
Article link: Neuron
Grant support: [+]

Species referenced: Xenopus
Genes referenced: ascl2 atoh7 neurod1