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Epithelial SOX11 regulates eyelid closure during embryonic eye development
Satoshi Nunomura1, Yasuhiro Nanri1, Véronique Lefebvre2
1Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan.
Biochemical and Biophysical Research Communications
|March 4, 2021
Summary
Epithelial SOX11 is crucial for embryonic eyelid closure. Its deficiency disrupts eyelid leading edge extension, preventing closure by affecting the c-Jun transcription factor, essential for this developmental process.
Area of Science:
- Developmental biology
- Genetics
- Ophthalmology
Background:
- Fibroblast growth factor (FGF10) signaling is vital for mammalian embryonic eyelid closure.
- SOX11 deficiency in mice results in unclosed eyelids, indicating a potential role for SOX11.
Purpose of the Study:
- To elucidate the mechanism by which SOX11 influences embryonic eyelid closure.
- To investigate the role of epithelial SOX11 in eyelid development.
Main Methods:
- Analysis of SOX11-deficient mouse embryos.
- Examination of eyelid leading edge extension.
- Assessment of c-Jun expression in epithelial SOX11-deficient embryos.
Main Results:
- Epithelial SOX11 deficiency leads to impaired eyelid leading edge extension.
- Failure of embryonic eyelid closure observed in SOX11-deficient embryos.
- Decreased levels of the transcription factor c-Jun in SOX11-deficient embryos.
Conclusions:
- Epithelial SOX11 is essential for embryonic eyelid closure in mammals.
- SOX11 regulates eyelid development through the control of leading edge extension.
- The FGF10-SOX11-c-Jun pathway is critical for proper eyelid formation.
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