R-cadherin is a Pax6-regulated, growth-promoting cue for pioneer axons.
[No authors listed]
摘要
The transcription factor Pax6 has been implicated in two processes that may be related in brain development: establishment of regional cell adhesion properties and axon guidance. In Pax6 mutant mouse embryos, forebrain pioneer axons make pathfinding errors. These errors occur in a region of the ventral thalamus in which the expression of the cell adhesion molecule R-cadherin (Cdh4) is lost in Pax6 mutants. In vitro, an R-cadherin substrate promoted pioneer axon outgrowth. Furthermore, pioneer axon outgrowth was rescued in vivo by selective replacement of R-cadherin by electroporation into cultured Pax6 mutant embryos. Thus, these studies implicate Pax6 as an early brain patterning gene that establishes regional adhesive codes to guide pioneer axons.
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基因功能
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原始数据
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文献解读
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