期刊
SCANDINAVIAN JOURNAL OF IMMUNOLOGY
卷 71, 期 6, 页码 459-467出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1365-3083.2010.02397.x
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类别
资金
- Helse Vest
- European Regional Fund
- Archimedes Foundation
- Estonian Science Foundation [8358]
Autoimmune polyendocrine syndrome type I (APS I) is a recessive disorder caused by mutations in the autoimmune regulator (AIRE) gene. AIRE is expressed in medullary epithelial cells where it activates transcription of organ-specific proteins in thymus, thereby regulating autoimmunity. Patients with APS I have, in addition to autoimmune manifestations in endocrine organs, also often ectodermal dystrophies and chronic mucocutaneous candidiasis. The aim of this study was to characterize immune cell subpopulations in patients with APS I and their close relatives. Extensive blood mononuclear cell immunophenotyping was carried out on 19 patients with APS I, 18 first grade relatives and corresponding sex- and age-matched healthy controls using flow cytometry. We found a significant relative reduction in T helper cells coexpressing CCR6 and CXCR3 in patients with APS I compared to controls (mean = 4.10% versus 5.94% respectively, P = 0.035). The pools of CD16+ monocytes and regulatory T cells (Tregs) were also lower in patients compared with healthy individuals (mean = 15.75% versus 26.78%, P = 0.028 and mean = 4.12% versus 6.73%, P = 0.029, respectively). This is the first report describing reduced numbers of CCR6+CXCR3+ T helper cells and CD16+ monocytes in patients with APS I We further confirm previous findings of reduced numbers of Tregs in these patients.
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