STIM1Mutation Associated with a Syndrome of Immunodeficiency and Autoimmunity

Autor: Stefan Feske, Claire Hivroz, Gideon Rechavi, Anjana Rao, Capucine Picard, Alexander Papolos, Francoise LeDeist, Frédéric Rieux-Laucat, Kevin Lüthy, Alain Fischer, Christie Ann McCarl, Sara Khalil
Rok vydání: 2009
Předmět:
Zdroj: New England Journal of Medicine. 360:1971-1980
ISSN: 1533-4406
0028-4793
Popis: A mutation in ORAI1, the gene encoding the pore-forming subunit of the Ca(2+)-release-activated Ca(2+) (CRAC) channel, abrogates the store-operated entry of Ca(2+) into cells and impairs lymphocyte activation. Stromal interaction molecule 1 (STIM1) in the endoplasmic reticulum activates ORAI1-CRAC channels. We report on three siblings from one kindred with a clinical syndrome of immunodeficiency, hepatosplenomegaly, autoimmune hemolytic anemia, thrombocytopenia, muscular hypotonia, and defective enamel dentition. Two of these patients have a homozygous nonsense mutation in STIM1 that abrogates expression of STIM1 and Ca(2+) influx.
Databáze: OpenAIRE