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Updated: May 12, 2026
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Electroporation of Craniofacial Mesenchyme
Published on: November 28, 2011
A morpholino-based screen to identify novel genes involved in craniofacial morphogenesis
Vida Senkus Melvin1, Weiguo Feng, Laura Hernandez-Lagunas
1Department of Craniofacial Biology, School of Dental Medicine, University of Colorado, Denver, Colorado, USA.
Summary
This study identified novel genes crucial for facial development by analyzing gene expression in mice and functional screening in zebrafish. These findings offer new insights into craniofacial defect causes in humans.
Area of Science:
- Developmental Biology
- Genetics
- Comparative Genomics
Background:
- Facial development regulatory mechanisms are conserved across species.
- Model systems offer insights into human craniofacial defects.
- Previous work generated a mouse facial development gene expression dataset.
Purpose of the Study:
- Identify genes with dynamic expression in mouse facial prominences.
- Investigate the developmental function of understudied genes.
Main Methods:
- High-throughput functional analysis using Morpholino gene knockdown in zebrafish.
- Categorization of cranial cartilage phenotypes based on gene knockdown effects.
- Analysis of p53 level influence on craniofacial abnormalities.
Main Results:
- Identified ~80 genes for functional screening.
- Revealed three classes of cranial cartilage phenotypes (neurocranium, viscerocranium, or both).
- Discovered genes involved in transcription, signaling, and extracellular matrix function, including meis1, meis2a, tshz2, vgll4l, pkdcc, vlk, macc1, wu:fb16h09, and smoc2.
- Demonstrated both p53-dependent and -independent mechanisms in craniofacial abnormalities.
Conclusions:
- Highlighted novel genes involved in zebrafish craniofacial skeleton development.
- Findings have broader relevance to facial development in mice and humans.
- Provides a foundation for understanding genetic causes of human craniofacial defects.
