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Updated: Jun 6, 2026
09:02
Validation of a Mouse Model to Disrupt LINC Complexes in a Cell-specific Manner
Published on: December 10, 2015
CEDNIK syndrome results from loss-of-function mutations in SNAP29
D Fuchs-Telem1, H Stewart, D Rapaport
1Department of Dermatology, Tel Aviv Sourasky Medical Center, Israel.
The British Journal of Dermatology
|November 16, 2010
Summary
This study identifies a new SNAP29 mutation causing CEDNIK syndrome, a rare skin disorder. This confirms SNAP29
Area of Science:
- Genetics and Molecular Biology
- Dermatology
- Developmental Biology
Background:
- CEDNIK syndrome is a rare genodermatosis linked to SNAP29 gene mutations.
- Loss-of-function in SNAP29 disrupts lamellar granule maturation, affecting epidermal differentiation and causing ichthyosis.
Observation:
- A novel homozygous insertion (c.486insA) in SNAP29 was identified in siblings with ichthyosis and corpus callosum dysgenesis.
- In vitro studies confirmed this mutation leads to SNAP29 loss-of-function.
- Histological features of CEDNIK syndrome were replicated in cell cultures with reduced SNAP29 expression.
Findings:
- The study establishes a causal link between SNAP29 dysfunction and CEDNIK syndrome's diverse symptoms.
- SNAP29 is crucial for normal epidermal differentiation processes.
Implications:
- This research solidifies SNAP29's role in epidermal development.
- Understanding SNAP29's function offers insights into genodermatoses and keratinocyte biology.
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