2009
DOI: 10.1080/08916930902832652
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HLA-DQA1 gene expression profiling in oligoarticular JIA

Abstract: Polymorphisms in the upstream regulatory region of the HLA class II DQA1 gene are currently defined by 10 different alleles. Two of them carrying a Y-box mutation are associated with susceptibility to oligoarticular juvenile idiopathic arthritis (OA-JIA). We investigated allele-dependent differences in HLA-DQA1 gene expression in OA-JIA patients. In cells from affected joints compared to peripheral blood, gene expression of HLA-DRA as well as total HLA-DQA1 was significantly upregulated. Differential analyses … Show more

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Cited by 11 publications
(5 citation statements)
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“…Moreover, dysregulation of HLA gene expression has been reported in the affected joints 35 and immune cells 36,37 of JIA patients. However, the HLA region is estimated to explain ~ 8-13% of JIA's total heritability, suggesting that non-HLA genes make crucial contributions 38,39 .…”
Section: Discussionmentioning
confidence: 99%
“…Moreover, dysregulation of HLA gene expression has been reported in the affected joints 35 and immune cells 36,37 of JIA patients. However, the HLA region is estimated to explain ~ 8-13% of JIA's total heritability, suggesting that non-HLA genes make crucial contributions 38,39 .…”
Section: Discussionmentioning
confidence: 99%
“…Bei der RFpos-pJIA hingegen finden sich die gleichen HLA-Assoziationen wie bei der RA des Adulten [16]. Auch bezüglich der vermuteten «shared-epitopes» bei den assoziierten HLA-Allelen unterscheiden sich PO-JIA, EO-JIA und RFneg-pJIA (shared epitope auf der HLA-DQA-Kette [20-22]) von der RA [19]. Genomweite Assoziationsstudien bestätigten einen differenten genetischen Hintergrund von PO-JIA, EO-JIA und RFneg-pJIA [23] im Vergleich zur RFpos-pJIA und RA [24, 25].…”
Section: äTiologie and Genetikunclassified
“…Bei der RF+ pJIA hingegen finden sich die gleichen HLA-Assoziationen wie die RA des Adulten [11]. Auch bezüglich der ver-muteten "Shared-Epitopes" bei den assoziierten HLA-Allelen unterscheiden sich po-JIA, eo-JIA und RF-pJIA (shared epitope auf der HLA-DQA-Kette [15][16][17]) von der RA [14]. Genome-wide Association Studies bestätigten einen differenten genetischen Hintergrund von po-JIA, eo-JIA und RF-pJIA [18] im Vergleich zur RA [19].…”
Section: äTiologieunclassified