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Related Experiment Videos

Intestinal morphogenesis.

Deborah C Rubin1

  • 1Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri 63110, USA. drubin@wustl.edu

Current Opinion in Gastroenterology
|February 3, 2007
PubMed
Summary
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Understanding gut development requires studying endoderm and mesoderm interactions. Research reveals key signaling pathways and genes crucial for intestinal morphogenesis and potential links to cancer.

Area of Science:

  • Developmental Biology
  • Gastroenterology
  • Molecular Biology

Background:

  • Intestinal development involves complex endoderm and mesoderm interactions.
  • Signaling pathways governing organogenesis are relevant to oncogenesis.
  • Understanding gut morphogenesis is crucial for congenital defect and cancer research.

Purpose of the Study:

  • To review recent studies on endoderm specification and gut tube formation.
  • To highlight the ontogeny of regional differentiation along anterior-posterior and crypt-villus axes.
  • To examine mechanisms of epithelial differentiation and epithelial-mesenchymal interactions in gut morphogenesis.

Main Methods:

  • Review of studies utilizing model organisms (zebrafish, Xenopus, Drosophila, mouse).
  • Analysis of research on embryonic stem cell-derived embryoid bodies.

Related Experiment Videos

  • Examination of genetic and signaling pathway involvement (e.g., FGF, retinoids, Bmp, Hh, wnt).

    • Main Results:

    • Fibroblast growth factors (FGFs) are critical for early endoderm differentiation and patterning.
    • Retinoids regulate gut looping and left-right asymmetry.
    • Novel regulators (e.g., Mtgr1) and known genes (e.g., PPARbeta/delta, Ptk6, GATA4) modulate epithelial cell differentiation and interactions.

    Conclusions:

    • Intestinal morphogenesis is a complex process involving multiple signaling pathways.
    • Studies of gut development offer insights into congenital defects.
    • Understanding these processes is vital for elucidating intestinal oncogenic pathways.