高度血清性卵巢癌的分子亚型跨种族群体和基因表达平台
Natalie R Davidson1, Mollie E Barnard2,3, Ariel A Hippen4
1Department of Biomedical Informatics, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
概括
高度血清性癌 (HGSC) 亚型在种族群体中表现出不同的患病率,但生存模式保持一致. 这表明HGSC亚型可以可靠地识别,无论种族.
科学领域:
- 基因组学就是基因组学.
- 在瘤学瘤学.
- 健康方面的种族差异.
背景情况:
- 高度血清癌 (HGSC) 基因表达亚型与不同的生存结果有关.
- 研究黑人个体的HGSC基因表达,以确定种族差异是否有助于生存差异.
- 检查了自认种族的基因表达变异是否会影响黑人和白人个体之间的HGSC存活率.
研究的目的:
- 在黑人个体中描述HGSC基因表达亚型.
- 为了比较黑人和白人种群之间的HGSC基因表达和生存模式.
- 评估HGSC亚型分配在不同种族群体和平台上的一致性.
主要方法:
- 利用K-意味着对来自黑人,白人和日本人的RNA测序和基因类型数据进行聚类.
- 总结了基因表达模式,使用调节的t分数,并将它们与数据集进行了比较.
- 采用Cox比例危险模型来分析亚型特定的生存率,将其映射到癌症基因组图谱 (TCGA) 的亚型.
主要成果:
- 基因表达模式在平台和种族群体之间是一致的.
- 免疫反应亚型在黑人 (39%) 与白人和日本人 (23%-28%) 相比更为普遍.
- 黑人和白人群体的亚型特定生存模式相似,亚型之间死亡风险没有显著差异.
结论:
- 虽然HGSC亚型的患病率因种族而异,但它们对生存的影响是一致的.
- 在各种平台和自我识别的种族群体中,可以可靠地分配HGSC亚型.
- 在HGSC亚型患病率中的种族差异似乎没有推动生存差异.
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