Copy number variation analysis on a non-Hodgkin lymphoma case-control study identifies an 11q25 duplication associated with diffuse large B-cell lymphoma.

Copy number variation analysis on a non-Hodgkin lymphoma case-control study identifies an 11q25 duplication associated with diffuse large B-cell lymphoma.
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DOI:
10.1371/journal.pone.0105382
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Skibola CF
Skibola CF
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Conde L;Riby J;Zhang J;Bracci PM;Skibola CF

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最近的GWAS已经确定了NHL的几个易感基因座。尽管取得了这些成功,但NHL风险的大部分遗传变异仍有待解释。常见的拷贝数变异是基因组变异的重要来源,因此是解释部分缺失遗传性的潜在来源。在这项研究中,我们使用来自681例NHL病例和749例对照的GWAS数据进行了CNV分析,以探讨常见结构变异与淋巴瘤易感性之间的关系。在这里,我们发现了一个新的关联与弥漫性大B细胞淋巴瘤(DLBCL)的风险,涉及部分复制的C-末端区域的LOC 283177长的非编码RNA,进一步证实了定量PCR。对于慢性淋巴细胞白血病/小淋巴细胞淋巴瘤(CLL/SLL),在染色体13 q14、11 q22 -23、14 q32和22q11.22上鉴定出已知的体细胞缺失。我们的研究表明,GWAS数据可用于鉴定与DLBCL疾病风险相关的种系CNV和CLL/SLL的体细胞CNV。
Recent GWAS have identified several susceptibility loci for NHL. Despite these successes, much of the heritable variation in NHL risk remains to be explained. Common copy-number variants are important genomic sources of variability, and hence a potential source to explain part of this missing heritability. In this study, we carried out a CNV analysis using GWAS data from 681 NHL cases and 749 controls to explore the relationship between common structural variation and lymphoma susceptibility. Here we found a novel association with diffuse large B-cell lymphoma (DLBCL) risk involving a partial duplication of the C-terminus region of the LOC283177 long non-coding RNA that was further confirmed by quantitative PCR. For chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), known somatic deletions were identified on chromosomes 13q14, 11q22-23, 14q32 and 22q11.22. Our study shows that GWAS data can be used to identify germline CNVs associated with disease risk for DLBCL and somatic CNVs for CLL/SLL.
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