在东亚从未吸烟者中,分层化肺腺癌风险与多祖先多基因风险评分
medRxiv : the preprint server for health sciences
|July 9, 2024
概括
开发多祖先多基因风险评分 (PRS) 改善了东亚从未吸烟者的肺腺癌 (LUAD) 风险预测. 这种方法增强了该人群中LUAD的风险分层.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 癌症流行病学 癌症流行病学
- 个性化医疗是个性化的医疗.
背景情况:
- 多基因风险评分 (PRS) 对疾病风险分层有价值.
- 目前的PRS主要是在欧洲人群中开发的,这限制了它们在不同祖先中的应用.
- 在东亚 (EAS) 永不吸烟者中,肺腺癌 (LUAD) 风险分层需要祖先特定或多祖先的PRS.
研究的目的:
- 在东亚从未吸烟者中开发和评估肺腺癌 (LUAD) 的单个和多祖先多基因风险评分 (PRS).
- 评估这些PRS在预测东亚人口中LUAD风险方面的表现.
- 探索多祖先PRS的潜力,以改善LUAD风险分层.
主要方法:
- 利用了东亚 (8,002例; 20,782对照) 和欧洲 (2,058例; 5,575对照) 人口的全基因组关联研究 (GWAS) 总结统计数据.
- 为LUAD开发了单个和多个祖先的PRS.
- 采用CT-SLEB方法用于多祖先PRS开发.
- 使用后勤回归和接收器运行特征 (ROC) 分析评估PRS性能.
主要成果:
- 一种多祖先的PRS与LUAD风险有很强的关联 (OR=1.71,95% CI:1.61-1.82).
- 多祖先PRS的ROC曲线下的面积为0.640 (95%CI:0.629-0.653).
- 在最高的PRS五分位数中,与最低的五分位数相比,PRS五分位数中的个体的LUAD风险几乎是最低五分位数的四倍.
- PRS的第95百分位表示估计有6.69%的终身绝对风险,平均10年风险是几十年前实现的.
结论:
- 多祖先PRS方法显示出在东亚从未吸烟者中增强LUAD风险分层的巨大潜力.
- 开发的PRS可以识别具有大幅增加LUAD风险的个体.
- 这项研究强调了在PRS开发中考虑祖先的重要性,以实现公平的风险预测.
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