Journal
JOURNAL OF EXPERIMENTAL MEDICINE
Volume 209, Issue 1, Pages 29-34Publisher
ROCKEFELLER UNIV PRESS
DOI: 10.1084/jem.20110896
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Funding
- Fondazione 'A. Nocivelli'
- United States Public Health Services [5P01HL059561]
- Fondazione C. Golgi
- Jeffrey Modell Foundation
- Perkin fund
- Rotary Brescia fellowship
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A female offspring of consanguineous parents, showed features of Wiskott-Aldrich syndrome (WAS), including recurrent infections, eczema, thrombocytopenia, defective T cell proliferation and chemotaxis, and impaired natural killer cell function. Cells from this patient had undetectable WAS protein (WASP), but normal WAS sequence and messenger RNA levels. WASP interacting protein (WIP), which stabilizes WASP, was also undetectable. A homozygous c.1301C>G stop codon mutation was found in the WIPF1 gene, which encodes WIP. Introduction of WIP into the patient's T cells restored WASP expression. These findings indicate that WIP deficiency should be suspected in patients with features of WAS in whom WAS sequence and mRNA levels are normal.
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