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Updated: Jun 15, 2026
07:13
Isolation and Time-Lapse Imaging of Primary Mouse Embryonic Palatal Mesenchyme Cells to Analyze Collective Movement Attributes
Published on: February 13, 2021
Tbx1 is necessary for palatal elongation and elevation.
Steven Goudy1, Amy Law, Gabriela Sanchez
1Department of Otolaryngology, Vanderbilt University School of Medicine, Nashville, TN, USA. steven.l.goudy@vanderbilt.edu <steven.l.goudy@vanderbilt.edu>
Mechanisms of Development
|March 11, 2010
Summary
TBX1 is crucial for palate development, guiding elongation and elevation. Its absence in mice leads to cleft palate and impaired fusion, impacting craniofacial development.
Area of Science:
- Developmental Biology
- Genetics
- Craniofacial Development
Background:
- TBX1 is implicated in DiGeorge/Velocardiofacial Syndrome.
- Its role in cardiac development is known, but palatal development is poorly understood.
Purpose of the Study:
- Investigate the role of TBX1 in mouse palatal development.
- Determine how TBX1 deficiency affects palate elongation, elevation, and fusion.
Main Methods:
- Studied Tbx1-/- mice embryos.
- Measured palate shelf length, proliferation, apoptosis, and growth factor expression.
- Conducted in vitro palate fusion and roller culture assays.
Main Results:
- Tbx1-/- embryos exhibited 100% cleft palate with failed elevation and 50% abnormal fusions.
- Reduced palate shelf length and increased tongue height impeded fusion.
- Diminished hyaluronic acid and perturbed cell proliferation/apoptosis were observed.
- Fgf8 expression decreased, while Fgf10 increased in Tbx1-/- palates.
Conclusions:
- TBX1 is essential for palate elongation and elevation.
- Fgf8 expression in the palate is dependent on TBX1.
- TBX1 deficiency leads to significant palatal defects.
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