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Trends Genet. 1999 Jan;15(1):20-4.

Neural induction. A bird's eye view.

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1
Department of Genetics and Development, College of Physicians and Surgeons of Columbia University, New York, NY 10032, USA. ace3@columbia.edu

Abstract

Since the discovery of the phenomenon of neural induction by Spemann and Mangold in 1924, considerable effort has been invested in identifying the signals produced by the organizer that are responsible for diverting the fate of cells from epidermal to neural. Substantial progress has been made only recently by the finding in amphibians that BMP4 is a neural inhibitor and epidermal inducer, and that endogenous antagonists of BMPs are secreted by the organizer. However, recent results in the chick point to the existence of other, upstream events required before BMP inhibition stabilizes neural fates. Here we take a critical view of the evidence for and against the view that BMP inhibition is a sufficient trigger for neural induction in different vertebrates.

PMID:
10087929
[Indexed for MEDLINE]
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