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Mechanistic insight into how Shh patterns the vertebrate limb

McGlinn E, Tabin C ...see all

Current Opinion in Genetics and Development, vol. 16, issue 4 (2006) pp. 426-432

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Abstract

The hands and feet of a newborn baby are a beautiful reminder of the complexity of embryonic patterning. Classical studies on how these structures form have led to a theoretical framework for understanding, in general, how discrete groups of cells can instruct differential fates across a wider field through the action of long-range signals. The discovery just more than a decade ago that localized expression of Sonic hedgehog (Shh) differentially patterns structures across the limb field, resulting in digits with unique characteristics, provided a starting point for readdressing these models at a molecular level. Current research has revealed unexpected complexity in how a gradient of Shh activity is both established and received, prompting re-evaluation of the nature of patterning mechanisms within the limb. ?? 2006 Elsevier Ltd. All rights reserved.

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Authors

  • Edwina McGlinn

  • Clifford J. Tabin

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