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Churchill, a zinc finger transcriptional activator, regulates the transition between gastrulation and neurulation

Sheng, GJ; dos Reis, M; Stern, CD; (2003) Churchill, a zinc finger transcriptional activator, regulates the transition between gastrulation and neurulation. CELL , 115 (5) 603 - 613.

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Abstract

Gastrulation generates mesoderm and endoderm from embryonic epiblast; soon after, the neural plate is established within the epiblast-both events require FGF signaling. We describe a zinc finger transcriptional activator, Churchill (ChCh), which acts as a switch between different roles of FGF. FGF induces ChCh slowly; this activates Smad-interacting-protein-1 (Sip1), which blocks further induction of the mesoderm markers brachyury and Tbx6L by FGF. ChCh is first expressed as cells stop migrating through the primitive streak, and we show that it regulates cell ingression. We propose a simple mechanism by which FGF sensitizes cells to BMP signals. These results reveal that neural induction requires cessation of mesoderm formation at the midline in addition to the decision between epidermis and neural plate.

Type: Article
Title: Churchill, a zinc finger transcriptional activator, regulates the transition between gastrulation and neurulation
Keywords: SMAD-INTERACTING PROTEIN-1, XENOPUS MESODERM INDUCTION, CHICK-EMBRYO, PRIMITIVE STREAK, NEURAL INDUCTION, HIRSCHSPRUNG-DISEASE, MORPHOGENETIC MOVEMENT, CELL MOVEMENTS, ZEB PROTEINS, REQUIRES FGF
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Cell and Developmental Biology
URI: http://discovery.ucl.ac.uk/id/eprint/10746
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