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Cited by 331

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Chimeric analysis of fibroblast growth factor receptor-1 (Fgfr1) function: a role for FGFR1 in morphogenetic movement through the primitive streak

Ciruna, Brian G., Schwartz, Lois, Harpal, Kendraprasad, Yamaguchi, Terry P., Rossant, Janet·1997·Development

Abstract

Fibroblast growth factor (FGF) signaling has been implicated in the patterning of mesoderm and neural lineages during early vertebrate development. In the mouse, FGF receptor-1 (FGFR1) is expressed in an appropriate spatial and temporal manner to be orchestrating these functions. Mouse embryos homozygous for a mutated Fgfr1 allele (fgfr1Δtmk) die early in development, show abnormal growth and aberrant mesodermal patterning. We have performed a chimeric analysis to further study FGFR1 function in the morphogenesis and patterning of the mesodermal germ layer at gastrulation. At E9.5, fgfr1Δtmk/fgfr1Δtmk cells showed a marked deficiency in their ability to contribute to the extra-embryonic, cephalic, heart, axial and paraxial mesoderm, and to the endoderm of chimeric embryos. Analysis at earlier stages of development revealed that fgfr1Δtmk/fgfr1Δtmk cells accumulated within the primitive streak of chimeric embryos, and consequently failed to populate the anterior mesoderm and endodermal lineages at their inception. We suggest that the primary defect associated with the fgfr1Δtmk mutation is a deficiency in the ability of epiblast cells to traverse the primitive streak. fgfr1Δtmk/fgfr1Δtmk cells that accumulated within the primitive streak of chimeric embryos tended to form secondary neural tubes. These secondary neural tubes were entirely fgfr1Δtmk/fgfr1Δtmk cell derived. The adoption of ectopic neural fate suggests that normal morphogenetic movement through the streak is essential not only for proper mesodermal patterning but also for correct determination of mesodermal/neurectodermal cell fates.

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Crossref · 10.1242/dev.124.14.2829

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Metadata

Authors
Ciruna, B. G., Schwartz, L., Harpal, K., Yamaguchi, T. P., & Rossant, J.
Venue
Development
Published
1997-07-15
Volume
124
Issue
14
Pages
2829-2841
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W1922337323
Cited by
331
References
1
FWCI
5.63
Type
journal article
Language
en
Open access
closed

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