Related Experiment Videos
SOX2 anophthalmia syndrome
Nicola K Ragge1, Birgit Lorenz, Adele Schneider
1Adnexal Service, Moorfields Eye Hospital, London, United Kingdom.
American Journal of Medical Genetics. Part A
|April 7, 2005
Summary
SOX2 gene mutations cause severe eye malformations, including anophthalmia, and a range of other developmental issues. This research details the clinical features of SOX2-related disorders in nine patients.
Area of Science:
- Genetics and Developmental Biology
- Ophthalmology
- Clinical Genetics
Background:
- SOX2 gene mutations are linked to congenital eye malformations.
- Bilateral anophthalmia is a known consequence of SOX2 loss-of-function mutations.
Purpose of the Study:
- To describe the clinical spectrum of SOX2-associated ocular and extraocular malformations.
- To characterize the first reported SOX2 missense mutation and its effects.
Main Methods:
- Clinical data collection and analysis from five previously reported and four newly identified cases with SOX2 mutations.
- Detailed phenotypic description of ocular and extraocular features.
Main Results:
- SOX2 mutations lead to variable, often severe, bilateral ocular malformations, including anophthalmia, microphthalmia, and sclerocornea.
- Consistent extraocular findings include learning disability, seizures, brain malformations, motor abnormalities, male genital tract malformations, facial dysmorphism, and growth failure.
- One patient with a unique presentation had measurable visual acuity, posterior cortical cataract, and optic disc dysplasia.
Conclusions:
- SOX2 mutations define a clinically recognizable, multisystem disorder affecting eye, brain, and male genital tract development.
- Understanding SOX2's role provides insight into critical developmental pathways for organogenesis.