Multiple signaling pathways are known to be involved in regulating development of the vertebrate neural retina. Recent publications have demonstrated that Wnt/Frizzled (Fz) signaling components are expressed in the developing retina and may play a fundamental role in retinogenesis. In this review, we summarize Wnt/Fz expression patterns in the developing vertebrate retina, mainly from chick and mouse, and compare them with Wnt/beta-catenin reporter activity. Consistent with the dynamic expression patterns of Wnt pathway components, evidence suggests that Wnt/Fz signaling has multiple roles during retinal development.
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Raay et al. (2004) studied this question.
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