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Dev Dyn. 2003 Feb;226(2):280-94.

Regeneration of the urodele limb: a review.

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  • 1University of Illinois Department of Cell and Structural Biology and College of Medicine, B107 Chemical and Life Sciences Laboratory, Urbana, Illinois, USA.


Urodele amphibians have been widely used for studies of limb regeneration. In this article, we review studies on blastema cell proliferation and propose a model of blastemal self-organization and patterning. The model is based on local cell interactions that intercalate positional identities within circumferential and proximodistal boundaries that outline the regenerate. The positional identities created by the intercalation process appear to be reflected in the molecular composition of the cell surface. Transcription factors and signaling molecules involved in patterning are discussed within the context of the boundary/intercalation model.

Copyright 2003 Wiley-Liss, Inc.

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