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Mouse Cdx-1 expression during gastrulation

B I Meyer1, P Gruss

  • 1Department of Molecular Cell Biology, Max-Planck Institute of Biophysical Chemistry, Göttingen, FRG.

Development (Cambridge, England)
|January 1, 1993
PubMed
Summary
This summary is machine-generated.

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The mouse Cdx-1 gene is crucial during early embryonic development, particularly in establishing anterior-posterior positional values. Its expression pattern highlights roles in gastrulation, hindbrain, spinal cord, and mesonephros formation.

Area of Science:

  • Developmental Biology
  • Genetics
  • Molecular Biology

Background:

  • The Cdx-1 gene plays a significant role in vertebrate embryonic development.
  • Understanding its spatiotemporal expression is key to deciphering developmental processes.

Purpose of the Study:

  • To meticulously map the expression pattern of the mouse Cdx-1 gene during early embryogenesis.
  • To correlate Cdx-1 expression with key developmental events and tissue formation.

Main Methods:

  • Analysis of Cdx-1 gene expression using both RNA and protein detection techniques.
  • Detailed examination of expression patterns at specific developmental time points (days 7.5 to 12).

Main Results:

  • Cdx-1 expression initiates at head process formation (day 7.5) in primitive streak ectodermal and mesodermal cells.

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  • Expression extends to the hindbrain and spinal cord, and is mesoderm-specific in somites, limb buds, and mesonephros.
  • No Cdx-1 signal was detected in notochordal cells or definitive endoderm.

    • Conclusions:

    • Cdx-1 is expressed during gastrulation, a critical period for establishing embryonic anterior-posterior axes.
    • Its expression pattern correlates with the formation of segmented tissues, including the hindbrain, spinal cord, and mesonephros.