Journal
YEAR IN IMMUNOLOGY
Volume 1285, Issue -, Pages 26-43Publisher
BLACKWELL SCIENCE PUBL
DOI: 10.1111/nyas.12049
Keywords
Wiskott-Aldrich syndrome; primary immunodeficiency; hematopoietic cells; F-actin; immune cell function; hematopoietic stem cell transplantation; gene therapy
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Funding
- NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [P01HL059561] Funding Source: NIH RePORTER
- NHLBI NIH HHS [5P01HL059561] Funding Source: Medline
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Wiskott-Aldrich syndrome (WAS) is a rare X-linked primary immunodeficiency characterized by microthrombocytopenia, eczema, recurrent infections, and an increased incidence of autoimmunity and malignancies. The disease is caused by mutations in the WAS gene expressed exclusively in hematopoietic cells. WAS protein (WASp) is a multidomain protein that exists in complex with several partners that play important roles in its function. WASp belongs to a family of proteins that relay signals from the surface of the cell to the actin cytoskeleton. Mutations in the WAS gene have various effects on the level of WASp, which, in turn, correlates with the severity of the disease. In addition to WAS, mutations in the WAS gene can result in the mild variant X-linked thrombocytopenia, or in X-linked neutropenia, characterized by neutropenia with myelodysplasia. The absence of functional WASp leads to a severe clinical phenotype that can result in death if not diagnosed and treated early in life. The treatment of choice with the best outcome is hematopoietic stem cell transplantation, preferably from a matched related donor.
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