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识别与肺腺癌风险相关的新型pQTL-SNP:一项多阶段研究

Yutong Wu¹, Huiwen Xu¹, Liping Mao²

¹Department of Epidemiology, School of Public Health, Nantong University, Nantong, Jiangsu, China.

Cancer medicine

|September 18, 2024

概括

这项研究确定了与肺腺癌 (LUAD) 风险相关的四种蛋白质定量特征位点单核酸多态 (pQTL-SNPs). 这些pQTL-SNP通过改变特定蛋白质的表达来影响LUAD风险,可能作为瘤抑制剂.

科学领域:

遗传学和基因组学遗传学和基因组学
癌症研究癌症研究
蛋白质组学是指蛋白质组学.

背景情况:

肺腺癌 (LUAD) 是一个重要的全球健康问题.
了解影响LUAD风险的遗传因素对于早期发现和预防至关重要.
蛋白质定量特征位点单核酸多态 (pQTL-SNPs) 代表了遗传变异和疾病风险之间的潜在联系.

研究的目的:

调查pQTL-SNP与发展LUAD的风险之间的关联.
确定特定的pQTL-SNP及其相应的蛋白质,这些蛋白质可能调节LUAD易感性.
探索这些遗传变异对蛋白质表达和LUAD发育的功能影响.

主要方法:

对女性LUAD患者和健康对照进行了深入的血蛋白质组学分析.
来自瘤和相邻非瘤组织的蛋白质组学数据被整合起来,以确定均表达的蛋白质.
选了pQTL-SNP,并使用来自亚洲女性肺癌联盟 (FLCCA GWAS) 的全基因组协会研究 (GWAS) 数据评估了它们与LUAD风险的关联.
酶相关免疫吸收试验 (ELISA) 用于量化候选蛋白质水平.

主要成果:

七个pQTL-SNP显示与改变的LUAD风险有显著的关联 (p <0.05).
这些pQTL-SNP的标蛋白的表达在LUAD病例的血和瘤组织中均持续下降,这表明瘤抑制作用.
在pQTL-SNPs (rs7683000,rs73224660,rs2776937) 中的特定突变导致BST1和NRP1的表达减少,可能增加LUAD风险 (OR > 1).
相反,pQTL-SNP rs62069916中的突变增加了APOH表达,这是一个潜在的瘤抑制剂,可以降低LUAD风险 (OR <1).
在LUAD细胞系中观察到NRP1和APOH的表达减少,并在患者血中得到验证.

结论:

四个pQTL-SNP (rs7683000,rs73224660,rs2776937和rs62069916) 与改变的LUAD风险显著相关.
这些关联通过基因突变后的目标蛋白表达 (BST1,NRP1和APOH) 的调节来调节.
已识别的pQTL-SNP及其点蛋白质代表了LUAD的潜在生物标志物或治疗点.

关键词:

在SNP中,SNP是SNP.肺部腺癌瘤是什么?蛋白质定量特征位点 (pQTL)蛋白质组学蛋白质组学

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