Mutations in SPINK5, encoding a serine protease inhibitor, cause Netherton syndrome

Abstract

We describe here eleven different mutations in SPINK5, encoding the serine protease inhibitor LEKTI, in 13 families with Netherton syndrome (NS, MIM256500). Most of these mutations predict premature termination codons. These results disclose a critical role of SPINK5 in epidermal barrier function and immunity, and suggest a new pathway for high serum IgE levels and atopic manifestations.

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Figure 1: Northern-blot analysis and SPINK5 representative homozygous mutations in NS families.

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Acknowledgements

We thank the patients and their families, and S.H. Compton for critical reading of the manuscript. S.C. held a British Skin Foundation Fellowship and is a Marie Curie European Fellow. A.H. held a DEBRA Fellowship and is a Wellcome Trust Senior Fellow.

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Correspondence to Alain Hovnanian.

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