Article
Progression of vertebrate limb development through SHH-mediated counteraction of GLI3.
Science (New York, N.Y.) - 25 Oct 2002
te Welscher Pascal, Zuniga Aimée, Kuijper Sanne, Drenth Thijs, Goedemans Hans J, Meijlink Frits, Zeller Rolf
Abstract excerpt
Distal limb development and specification of digit identities in tetrapods are under the control of a mesenchymal organizer called the polarizing region. Sonic Hedgehog (SHH) is the morphogenetic signal produced by the polarizing region in the posterior limb bud. Ectopic anterior SHH signaling induces digit duplications and has been suspected as a major cause underlying congenital malformations that result in...
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