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Assessment of polygenic architecture and risk prediction based on common variants across fourteen cancers.
Nature Communications ( IF 14.7 ) Pub Date : 2020-07-03 , DOI: 10.1038/s41467-020-16483-3
Yan Dora Zhang 1, 2 , Amber N Hurson 3, 4 , Haoyu Zhang 3, 5 , Parichoy Pal Choudhury 3 , Douglas F Easton 6, 7 , Roger L Milne 8, 9, 10 , Jacques Simard 11 , Per Hall 12, 13 , Kyriaki Michailidou 7, 14 , Joe Dennis 7 , Marjanka K Schmidt 15, 16 , Jenny Chang-Claude 17, 18 , Puya Gharahkhani 19 , David Whiteman 20 , Peter T Campbell 21 , Michael Hoffmeister 22 , Mark Jenkins 9 , Ulrike Peters 23 , Li Hsu 23 , Stephen B Gruber 24 , Graham Casey 25 , Stephanie L Schmit 26 , Tracy A O'Mara 27 , Amanda B Spurdle 27 , Deborah J Thompson 7 , Ian Tomlinson 28, 29 , Immaculata De Vivo 30, 31 , Maria Teresa Landi 3 , Matthew H Law 19 , Mark M Iles 32 , Florence Demenais 33 , Rajiv Kumar 34 , Stuart MacGregor 19 , D Timothy Bishop 35 , Sarah V Ward 36 , Melissa L Bondy 37 , Richard Houlston 38 , John K Wiencke 39 , Beatrice Melin 40 , Jill Barnholtz-Sloan 41 , Ben Kinnersley 38 , Margaret R Wrensch 39 , Christopher I Amos 42 , Rayjean J Hung 43 , Paul Brennan 44 , James McKay 44 , Neil E Caporaso 3 , Sonja I Berndt 3 , Brenda M Birmann 30 , Nicola J Camp 45 , Peter Kraft 46 , Nathaniel Rothman 3 , Susan L Slager 47 , Andrew Berchuck 48 , Paul D P Pharoah 6, 7 , Thomas A Sellers 26 , Simon A Gayther 49 , Celeste L Pearce 24, 50 , Ellen L Goode 51 , Joellen M Schildkraut 52 , Kirsten B Moysich 53 , Laufey T Amundadottir 54 , Eric J Jacobs 21 , Alison P Klein 55 , Gloria M Petersen 51 , Harvey A Risch 56 , Rachel Z Stolzenberg-Solomon 3 , Brian M Wolpin 57 , Donghui Li 58 , Rosalind A Eeles 59 , Christopher A Haiman 24 , Zsofia Kote-Jarai 59 , Fredrick R Schumacher 60 , Ali Amin Al Olama 61, 62 , Mark P Purdue 3 , Ghislaine Scelo 44 , Marlene D Dalgaard 63, 64 , Mark H Greene 65 , Tom Grotmol 66 , Peter A Kanetsky 26 , Katherine A McGlynn 3 , Katherine L Nathanson 67 , Clare Turnbull 38 , Fredrik Wiklund 12 , , , , , , , , , , , , , , , , , , , Stephen J Chanock 3 , Nilanjan Chatterjee 5, 55 , Montserrat Garcia-Closas 3
Affiliation  

Genome-wide association studies (GWAS) have led to the identification of hundreds of susceptibility loci across cancers, but the impact of further studies remains uncertain. Here we analyse summary-level data from GWAS of European ancestry across fourteen cancer sites to estimate the number of common susceptibility variants (polygenicity) and underlying effect-size distribution. All cancers show a high degree of polygenicity, involving at a minimum of thousands of loci. We project that sample sizes required to explain 80% of GWAS heritability vary from 60,000 cases for testicular to over 1,000,000 cases for lung cancer. The maximum relative risk achievable for subjects at the 99th risk percentile of underlying polygenic risk scores (PRS), compared to average risk, ranges from 12 for testicular to 2.5 for ovarian cancer. We show that PRS have potential for risk stratification for cancers of breast, colon and prostate, but less so for others because of modest heritability and lower incidence.



中文翻译:


基于十四种癌症的常见变异的多基因结构评估和风险预测。



全基因组关联研究(GWAS)已确定了数百个癌症易感位点,但进一步研究的影响仍不确定。在这里,我们分析了欧洲血统 14 个癌症部位的 GWAS 的汇总数据,以估计常见易感性变异(多基因性)的数量和潜在的效应大小分布。所有癌症都表现出高度的多基因性,至少涉及数千个基因座。我们预计,解释 80% GWAS 遗传性所需的样本量从 60,000 例睾丸癌病例到超过 1,000,000 例肺癌病例不等。与平均风险相比,潜在多基因风险评分 (PRS) 第 99 个风险百分位的受试者可达到的最大相对风险范围为睾丸癌 12 到卵巢癌 2.5。我们表明,PRS 具有对乳腺癌、结肠癌和前列腺癌进行风险分层的潜力,但由于遗传性适中且发病率较低,因此对其他癌症的风险分层效果较差。

更新日期:2020-07-03
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