Abstract
The relative contribution of immunological dysregulation and impaired epithelial barrier function to allergic diseases is still a matter of debate. Here we describe a new syndrome featuring severe dermatitis, multiple allergies and metabolic wasting (SAM syndrome) caused by homozygous mutations in DSG1. DSG1 encodes desmoglein 1, a major constituent of desmosomes, which connect the cell surface to the keratin cytoskeleton and have a crucial role in maintaining epidermal integrity and barrier function. Mutations causing SAM syndrome resulted in lack of membrane expression of DSG1, leading to loss of cell-cell adhesion. In addition, DSG1 deficiency was associated with increased expression of a number of genes encoding allergy-related cytokines. Our deciphering of the pathogenesis of SAM syndrome substantiates the notion that allergy may result from a primary structural epidermal defect.
Original language | English |
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Article number | N/A |
Pages (from-to) | 1244-1248 |
Number of pages | 6 |
Journal | Nature Genetics |
Volume | 45 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct 2013 |
Keywords
- STRIATE PALMOPLANTAR KERATODERMA
- NETHERTON-SYNDROME
- SKIN-DISEASE
- STRATUM-CORNEUM
- ATOPIC DISEASES
- GROWTH FAILURE
- MUTATIONS
- ICHTHYOSIS
- CHILDREN
- ECZEMA