Format

Send to

Choose Destination
Cell Mol Life Sci. 2013 Oct;70(20):3739-52. doi: 10.1007/s00018-013-1269-5. Epub 2013 Feb 9.

Developmental mechanisms directing early anterior forebrain specification in vertebrates.

Author information

1
Birth Defects Research Centre, UCL Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK.

Abstract

Research from the last 15 years has provided a working model for how the anterior forebrain is induced and specified during the early stages of embryogenesis. This model relies on three basic processes: (1) induction of the neural plate from naive ectoderm requires the inhibition of BMP/TGFβ signaling; (2) induced neural tissue initially acquires an anterior identity (i.e., anterior forebrain); (3) maintenance and expansion of the anterior forebrain depends on the antagonism of posteriorizing signals that would otherwise transform this tissue into posterior neural fates. In this review, we present a historical perspective examining some of the significant experiments that have helped to delineate this molecular model. In addition, we discuss the function of the relevant tissues that act prior to and during gastrulation to ensure proper anterior forebrain formation. Finally, we elaborate data, mainly obtained from the analyses of mouse mutants, supporting a role for transcriptional repressors in the regulation of cell competence within the anterior forebrain. The aim of this review is to provide the reader with a general overview of the signals as well as the signaling centers that control the development of the anterior neural plate.

PMID:
23397132
PMCID:
PMC3781296
DOI:
10.1007/s00018-013-1269-5
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Springer Icon for PubMed Central
Loading ...
Support Center