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Related Experiment Video

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Dissection and Immunostaining of Imaginal Discs from Drosophila melanogaster

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Regulation and function of Dlx3 in vertebrate development.

M J Beanan¹, T D Sargent

¹Laboratory of Molecular Genetics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA.

Developmental Dynamics : an Official Publication of the American Association of Anatomists

|July 25, 2000

Summary

Distal-less homeobox 3 (Dlx3) is a crucial transcription factor for skin development and placental formation. Its disruption leads to developmental lethality and hereditary syndromes in humans.

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Area of Science:

Developmental Biology
Genetics
Evolutionary Biology

Background:

Dlx3 is a homeodomain transcription factor homologous to Drosophila Distal-less.
It is expressed in various developing tissues including epidermis, neural crest, and placenta.

Purpose of the Study:

To review the evolution, expression, regulation, and function of Dlx3.
To highlight the significance of Dlx3 in vertebrate development.

Main Methods:

Literature review of studies on Dlx3 in mouse, amphibians, and zebrafish.
Analysis of gene expression patterns and functional studies.

Main Results:

Dlx3 acts as a transcriptional activator, regulating skin gene expression.
Loss of Dlx3 function is embryonically lethal in mice, impacting placental development.
Dlx3 mutations are linked to hereditary syndromes in humans.

Conclusions:

Dlx3 plays a vital role in epidermal differentiation and placental morphogenesis.
Understanding Dlx3's function is critical for developmental biology and human health.