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Related Experiment Videos

Retinoids and renal development.

C R Burrow1

  • 1Mount Sinai School of Medicine, New York, NY 10021, USA. chris.burrow@mssm.edu

Experimental Nephrology
|August 15, 2000
PubMed
Summary

Retinoids are crucial for fetal kidney development, impacting nephron number. Studies show retinoid signaling maintains c-ret expression in ureteric bud tips, essential for kidney organogenesis.

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Area of Science:

  • Developmental Biology
  • Molecular Biology
  • Genetics

Background:

  • Retinoids are vital for kidney organogenesis.
  • Fetal vitamin A deficiency can reduce nephron number.
  • Retinoid actions in the fetal kidney are increasingly understood.

Purpose of the Study:

  • To elucidate the role of retinoids in fetal kidney development.
  • To identify downstream mediators of retinoid effects in the developing kidney.

Main Methods:

  • Studies on RAR alpha/beta 2 double homozygous mice.
  • Metanephric organ culture experiments.

Main Results:

  • Retinoid signaling is essential for ureteric bud branching.
  • Retinoid action maintains c-ret expression in ureteric bud tips.
  • Potential downstream targets include midkine, sonic hedgehog, and Hox d-11.

Conclusions:

  • Retinoids play a critical role in maintaining ureteric bud tip cell identity via c-ret.
  • Further research into retinoid target genes will reveal more about kidney development.
  • Understanding retinoid signaling pathways is key to understanding congenital kidney anomalies.

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