Association of HLA-DQB1 alleles with risk of follicular lymphoma.

Association of HLA-DQB1 alleles with risk of follicular lymphoma.
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DOI:
10.3109/10428194.2010.532888
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发表时间:
2011-01
影响因子:
2.6
通讯作者:
Skibola CF
Skibola CF
中科院分区:
医学4区
文献类型:
--
作者:
Akers NK;Curry JD;Conde L;Bracci PM;Smith MT;Skibola CF

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在最近的一项滤泡性淋巴瘤(FL)全基因组关联研究中,我们在染色体6p21.33上发现了新的风险等位基因,这些等位基因似乎是扩展单倍型的一部分,包括HLA-DRB1*0101, DQA1*0101和DQB1*0501。为了进一步研究这些发现,我们使用一种新的检测方法,在265例FL病例和757例对照中获得了2-4位HLA-DQB1等位基因,该检测方法采用多路连接依赖探针扩增(MLPA)。我们证实了FL与HLA-DQB1*05等位基因组呈正相关(OR=1.70, 95% CI 1.28-2.27;校正p值=0.013),并发现了与FL风险负相关的等位基因组HLA-DQB1*06 (OR=0.51, 95% CI 0.38-0.69;校正p值=4.46×10−5)。尽管这些发现需要验证,HLA II类蛋白在b细胞存活和增殖中的作用使其在生物学上可信。
In a recent genome-wide association study of follicular lymphoma (FL), we identified novel risk alleles on chromosome 6p21.33 that appeared to be part of an extended haplotype including HLA-DRB1*0101, DQA1*0101, and DQB1*0501. To follow up on these findings, we obtained 2–4 digit HLA-DQB1 allelotypes on a subset of 265 FL cases and 757 controls using a novel assay that applies multiplexed ligation-dependent probe amplification (MLPA). We confirmed a positive association between FL and the HLA-DQB1*05 allele group (OR=1.70, 95% CI 1.28–2.27; adjusted p-value=0.013) and also identified an allele group inversely associated with FL risk, HLA-DQB1*06 (OR=0.51, 95% CI 0.38–0.69; adjusted p-value=4.46×10−5). Although these findings require verification, the role of HLA class II proteins in B-cell survival and proliferation make this a biologically plausible association.
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