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Updated: Jun 27, 2025
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Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction
Published on: March 31, 2020
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Abnormalities in pharyngeal arch-derived structures in SATB2-associated syndrome
Yuri A Zarate1,2, Katherine Bosanko2, Nada Derar3
1Division of Genetics and Metabolism, University of Kentucky, Lexington, Kentucky, USA.
Clinical Genetics
|May 2, 2024
Summary
SATB2-associated syndrome (SAS) involves neurodevelopmental and craniofacial issues. Mutant mice and patients show mandibular and thyroid abnormalities, highlighting Satb2
Area of Science:
- Genetics
- Developmental Biology
- Medical Research
Background:
- SATB2-associated syndrome (SAS) is a neurodevelopmental disorder.
- SAS frequently presents with craniofacial abnormalities, including dental and palatal anomalies.
Purpose of the Study:
- To investigate the role of Satb2 in craniofacial development.
- To correlate mouse model findings with clinical phenotypes in SAS patients.
Main Methods:
- Analysis of Satb2 knockout (Satb2-/-) mice at various developmental stages.
- Clinical evaluation of four individuals with SAS and distinct craniofacial features.
Main Results:
- Satb2 is broadly expressed during early embryonic development, particularly in the second and third pharyngeal arches.
- Satb2-/- mice exhibited microglossia, mandibular hypoplasia, smaller trigeminal ganglia, and enlarged thyroids.
- Clinical findings in SAS patients included significant craniofacial phenotypes, with one requiring mandibular distraction surgery.
Conclusions:
- The study supports previously under-recognized phenotypic aspects of SAS.
- Mandibular morphology and thyroid function/anatomy are significant features of SAS.
- Combined mouse and patient data elucidate Satb2's role in craniofacial and thyroid development.
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