Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Cdx1::Cre Allele for Gene Analysis in the Extraembryonic Ectoderm and the Three Germ Layers of Mice at Mid-Gastrulation

MPG-Autoren
/persons/resource/persons191105

Hierholzer,  Andreas
Emeritus Group: Molecular Embryology, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society;

/persons/resource/persons191147

Kemler,  Rolf
Emeritus Group: Molecular Embryology, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Hierholzer, A., & Kemler, R. (2009). Cdx1:Cre Allele for Gene Analysis in the Extraembryonic Ectoderm and the Three Germ Layers of Mice at Mid-Gastrulation. Genesis, 47, 204-209.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002B-8F6D-D
Zusammenfassung
Transgenic mice with a defined cell- or tissues-specific expression of Cre-recombinase are essential tools to study gene function. Here we report the generation and analysis of a transgenic mouse line (Cdx1::Cre) with restricted Cre-expression from Cdx1 regulatory elements. The expression of Cre-recombinase mimicked the endogenous expression pattern of Cdx1 at midgastrulation (from E7.5 to early headfold stage) inducing recombination in the three germlayers of the primitive streak region throughout the posterior embryo and caudal to the heart. This enables gene modifications to investigate patterning of the caudal embryo during and after gastrulation. Interestingly, we identified Cdx1 expression in the trophectoderm (TE) of blastocyst stage embryos. Concordantly, we detected extensive Cre-mediated recombination in the polar TE and, although to lesser extent, in the mural TE. In E7.5 postimplantation embryos, almost all cells of the extraembryonic ectoderm (ExE), which are derived from the polar TE, are recombined although the ExE itself is negative for Cdx1 and Cre at this stage. These results indicate that Cdx1::Cre mice are also a valuable tool to study gene function in tissues essential for placental development.