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Updated: Jul 22, 2026
10:10
Dissection and Immunostaining of Imaginal Discs from Drosophila melanogaster
Published on: September 20, 2014
Regulation and function of Dlx3 in vertebrate development
1Laboratory of Molecular Genetics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA.
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.
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.
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