Journal
CLINICAL IMMUNOLOGY
Volume 178, Issue -, Pages 79-85Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.clim.2017.01.012
Keywords
STAT1; STAT4; Transforming growth factor-beta; SMAD3; Gain-of-function mutation; Chronic mucocutaneous candidiasis; Aneurysm; Mendelian susceptibility to mycobacterial disease
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Chronic mucocutaneous candidiasis, characterized by persistent or recurrent fungal infections, represents the clinical hallmark in gain-of-function (GOF) signal transducer and activator of transcription 1 (STAT1) mutation carriers. Several cases of intracranial aneurysms have been reported in patients with GOF STAT1 mutation but the paucity of reported cases likely suggested this association still as serendipity. In order to endorse this association, we link the development of intracranial aneurysms with STAT1 GOF mutation by presenting the two different cases of a patient and her mother, and demonstrate upregulated phosphorylated STAT4 and IL-12 receptor 131 upon stimulation in patient's blood cells. We also detected increased transforming growth factor (TGF)-beta type 2 receptor expression, particularly in CD14(+) cells, and a slightly higher phosphorylation rate of SMAD3. In addition, the mother of the patient developed disseminated bacille Calmette-Guerin disease after vaccination, speculating that GOF STAT1 mutations may confer a predisposition to weakly virulent mycobacteria. (C) 2017 Elsevier Inc. All tights reserved.
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