A genome-wide association scan (GWAS) for mean telomere length within the COGS project: identified loci show little association with hormone-related cancer risk.

A genome-wide association scan (GWAS) for mean telomere length within the COGS project: identified loci show little association with hormone-related cancer risk.
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COGS 项目中对平均端粒长度进行的全基因组关联扫描 (GWAS):确定的基因座与激素相关癌症风险几乎没有关联。

DOI:
10.1093/hmg/ddt355
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发表时间:
2013-12-15
影响因子:
3.5
通讯作者:
Nordestgaard BG
Nordestgaard BG
中科院分区:
生物学2区
文献类型:
--
作者:
Pooley KA;Bojesen SE;Weischer M;Nielsen SF;Thompson D;Amin Al Olama A;Michailidou K;Tyrer JP;Benlloch S;Brown J;Audley T;Luben R;Khaw KT;Neal DE;Hamdy FC;Donovan JL;Kote-Jarai Z;Baynes C;Shah M;Bolla MK;Wang Q;Dennis J;Dicks E;Yang R;Rudolph A;Schildkraut J;Chang-Claude J;Burwinkel B;Chenevix-Trench G;Pharoah PD;Berchuck A;Eeles RA;Easton DF;Dunning AM;Nordestgaard BG

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血细胞的平均端粒长度(TL)是遗传的,据报道与包括癌症在内的几种疾病的风险有关。我们对TL的三个GWAS(总n=2240)进行了荟萃分析,并通过“iCOGS”定制基因分型阵列选择了1629个变异进行复制。用TL分析了所有~ 200000个iCOGS变异,并在乳腺癌病例(n = 11024)中进一步检测了健康对照(n = 15065)中显示相关的iCOGS变异。我们发现在3p14.4位点与PXK位点存在新的TL关联(Ptrend < 4 × 10−10),并且在6p22.1位点(ZNF311)和20q11.2位点(BCL2L1)存在TL关联(Ptrend < 7 × 10−7)。我们进一步证实了先前报道的3q26.2 (TERC)、5p15.3 (TERT)和10q24.3 (OBFC1)位点(Ptrend < 5 × 10−14),并发现了已发表的2p16.2 (ACYP2)、4q32.2 (NAF1)和20q13.3 (RTEL1)位点的支持证据(Ptrend < 5 × 10−4)。标记这些位点的snp解释了高达731 bp的TL差异(相当于健康个体总TL的18%),然而,它们几乎没有显示与乳腺癌、卵巢癌或前列腺癌风险相关的直接证据。
Mean telomere length (TL) in blood cells is heritable and has been reported to be associated with risks of several diseases, including cancer. We conducted a meta-analysis of three GWAS for TL (total n=2240) and selected 1629 variants for replication via the “iCOGS” custom genotyping array. All ∼200 000 iCOGS variants were analysed with TL, and those displaying associations in healthy controls (n = 15 065) were further tested in breast cancer cases (n = 11 024). We found a novel TL association (Ptrend < 4 × 10−10) at 3p14.4 close to PXK and evidence (Ptrend < 7 × 10−7) for TL loci at 6p22.1 (ZNF311) and 20q11.2 (BCL2L1). We additionally confirmed (Ptrend < 5 × 10−14) the previously reported loci at 3q26.2 (TERC), 5p15.3 (TERT) and 10q24.3 (OBFC1) and found supportive evidence (Ptrend < 5 × 10−4) for the published loci at 2p16.2 (ACYP2), 4q32.2 (NAF1) and 20q13.3 (RTEL1). SNPs tagging these loci explain TL differences of up to 731 bp (corresponding to 18% of total TL in healthy individuals), however, they display little direct evidence for association with breast, ovarian or prostate cancer risks.
来自1,092个人基因组的遗传变异的综合图。
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