Article
Signal relay by BMP antagonism controls the SHH/FGF4 feedback loop in vertebrate limb buds.
Nature - 7 Oct 1999
Zúñiga A, Haramis A P, McMahon A P, Zeller R
Abstract excerpt
Outgrowth and patterning of the vertebrate limb are controlled by reciprocal interactions between the posterior mesenchyme (polarizing region) and a specialized ectodermal structure, the apical ectodermal ridge (AER). Sonic hedgehog (SHH) signalling by the polarizing region modulates fibroblast growth factor (FGF)4 signalling by the posterior AER, which in turn maintains the polarizing region (SHH/FGF4 feedback...
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