Goosecoid and HNF-3β genetically interact to regulate neural tube patterning during mouse embryogenesis

Stefania Filosa, Jaime A. Rivera-Pérez, Aitana Perea Gómez, Anne Gansmuller, Hitoshi Sasaki, Richard R. Behringer, Siew Lan Ang

Research output: Contribution to journalArticle

Abstract

The homeobox gene goosecoid (gsc) and the winged-helix gene Hepatic Nuclear Factor-3β (HNF-3β) are co-expressed in all three germ layers in the anterior primitive streak and at the rostral end of mouse embryos during gastrulation. In this paper, we have tested the possibility of functional synergism or redundancy between these two genes during embryogenesis by generating double-mutant mice for gsc and HNF-3β. Double-mutant embryos of genotype gsc(-/-) HNF-3β(+/-) show a new phenotype as early as embryonic days 8.75. Loss of Sonic hedgehog (Shh) and HNF-3β expression was observed in the notochord and ventral neural tube of these embryos. These results indicate that gsc and HNF-3β interact to regulate Shh expression and consequently dorsal-ventral patterning in the neural tube. In the forebrain of the mutant embryos, severe growth defects and absence of optic vesicles could involve loss of expression of fibroblast growth factor-8, in addition to Shh. Our results also suggest that interaction between gsc and HNF-3β regulates other signalling molecules required for proper development of the foregut, branchial arches and heart.

Original languageEnglish
Pages (from-to)2843-2854
Number of pages12
JournalDevelopment
Volume124
Issue number14
Publication statusPublished - Jul 1997

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Keywords

  • Fgf-8
  • Forebrain
  • Foregut
  • Goosecoid
  • HNF-3β
  • Neural tube
  • Patterning
  • Sonic hedgehog

ASJC Scopus subject areas

  • Cell Biology
  • Anatomy

Cite this

Filosa, S., Rivera-Pérez, J. A., Gómez, A. P., Gansmuller, A., Sasaki, H., Behringer, R. R., & Ang, S. L. (1997). Goosecoid and HNF-3β genetically interact to regulate neural tube patterning during mouse embryogenesis. Development, 124(14), 2843-2854.