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Retinoic acid and pattern formation in vertebrates

¹Department of Genetics, Case Western Reserve University, Cleveland, OH 44106-4955, USA.

Trends in Genetics : TIG

|August 1, 1995

Summary

Retinoic acid, known for causing birth defects, is now found to play a role in normal embryonic development. Studies on Hox gene regulation and retinoid signaling pathways in mice support its involvement in pattern formation.

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Area of Science:

Developmental biology
Molecular genetics
Teratology

Background:

Retinoic acid is a known teratogen, causing significant birth defects in vertebrate embryos.
Its precise role in normal embryonic development and pattern formation remains largely unelucidated.

Purpose of the Study:

To investigate the potential role of retinoic acid in the normal mechanisms of vertebrate embryonic development.
To explore the significance of retinoic acid signaling in pattern genesis in vivo.

Main Methods:

Analysis of Hox gene regulation in the context of retinoic acid exposure.
Examination of phenotypes in mice with mutations in the retinoid signaling pathway.

Main Results:

Recent analyses indicate retinoic acid's involvement in the genesis of embryonic patterns.
Mutant mouse phenotypes provide evidence for retinoic acid's role in developmental processes.

Conclusions:

Retinoic acid is implicated in the in vivo pattern formation during vertebrate embryonic development.
Findings suggest retinoic acid signaling is integral to normal developmental mechanisms, beyond its teratogenic effects.

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