在日本癌队列中系统识别与生存相关的eQTL
Xiya Song1, Han Jin1, Xiangyu Li1
1Science for Life Laboratory, KTH - Royal Institute of Technology, Stockholm, Sweden.
PLoS genetics
|July 7, 2025
概括
表达量的特征位点 (eQTLs) 提供了对清细胞癌 (ccRCC) 的预后见解. 这项研究确定了与ccRCC存活率相关的新型eQTL,跨种族验证突出了潜在的生物标志物.
科学领域:
- 基因组学和生物信息学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 清细胞癌 (ccRCC) 是最常见的癌亚型.
- 在ccRCC中表达定量特征位点 (eQTL) 的预后意义尚不清楚,特别是在亚洲人群中.
研究的目的:
- 在日本ccRCC患者中识别eQTL.
- 评估eQTL与患者存活率的相关性.
- 在独立的ccRCC队列中验证发现.
主要方法:
- 来自100名日本ccRCC患者的全外体和RNA测序数据.
- 识别eGenes和cis-eQTLs. 这是一个很好的方法.
- 使用多种Cox比例危险模型进行生存分析.
- 在癌症基因组图谱 (TCGA) ccRCC队列中的验证.
主要成果:
- 在日本队列中确定了805个eGenes和4,558个cis-eQTL.
- 九个eGenes与整体存活率 (FDR <0.05) 有意义地相关.
- 探索性分析揭示了223个eQTLs调节54个eGenes,具有一致的预后效应.
- 调节11个eGenes的8个eQTL显示了跨种族的可复制的生存关联,包括ERV3-1和ANKRD20A7P的变异.
结论:
- eQTL在ccRCC预后中发挥着重要作用.
- 在不同人群中确定了具有一致预后价值的特定eQTL和eGenes.
- 在ERV3-1和ANKRD20A7P中的变种显示出作为ccRCC的跨种族预后生物标志物的潜力.
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