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Related Concept Videos

Determination01:51

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In contrast, determination...

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Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development
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Published on: January 26, 2013

Spred2 expression during mouse development.

Ioana Laura Tuduce1, Kai Schuh, Karin Bundschu

  • 1Institute of Biochemistry and Molecular Biology, University of Ulm, Ulm, Germany.

Developmental Dynamics : an Official Publication of the American Association of Anatomists
|October 1, 2010
PubMed
Summary
This summary is machine-generated.

Sprouty-related protein with Ena/VASP homology 1 domain 2 (SPRED2) is crucial for mouse development, showing dynamic expression patterns in various tissues. Its localization suggests a role in regulating growth and tissue formation during embryogenesis.

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • Sprouty-related proteins with Ena/Vasodilator-stimulated phosphoprotein homology-1 domain (SPREDs) modulate receptor tyrosine kinases and inhibit MAPK signaling.
  • While Spred2 knockout mice show dwarfism and altered hematopoiesis, its precise expression and developmental role are largely unknown.

Purpose of the Study:

  • To elucidate the detailed spatiotemporal expression pattern of SPRED2 during mouse embryonic development.
  • To investigate the potential role of SPRED2 in regulating dynamic developmental processes.

Main Methods:

  • Utilized a gene-trapped Spred2 mouse line for detailed expression analysis.
  • Employed X-Gal staining to visualize Spred2 expression patterns in embryonic tissues at various developmental stages.

Main Results:

  • Identified high Spred2 expression in early ectodermal and mesodermal tissues.
  • Observed Spred2 expression in developing neural tissue, heart, lung, intestine, urogenital tract, and limbs.
  • Found Spred2 predominantly localized at the leading edges of outgrowing structures and in forming grooves, indicating involvement in dynamic growth processes.

Conclusions:

  • SPRED2 exhibits a dynamic expression pattern throughout mouse development, particularly in areas of active tissue morphogenesis.
  • The localization of SPRED2 suggests a significant role in regulating cell migration, tissue boundary formation, and overall embryonic development.
  • These findings provide crucial insights into the previously enigmatic physiological functions of SPRED proteins during mammalian development.