Identification of novel pQTL‐SNPs associated with lung adenocarcinoma risk: A multi‐stage study

Abstract Background and Objective To explore the association between protein quantitative trait loci (pQTL‐SNPs) and the risk of LUAD. Methods “Blood +” high depth blood proteomics analysis was performed on plasma from female LUAD patients and female healthy controls, and combined with proteomics data from tumors and adjacent non‐tumor tissues of female LUAD patients to screen proteins uniformly expressed in plasma and tissues. pQTL‐SNPs were then screened through multiple databases and subjected to multilevel screening. The associations between selected pQTL‐SNPs and LUAD risk were evaluated by Female Lung Cancer Consortium in Asia GWAS (FLCCA GWAS). Enzyme linked immunosorbent assay (ELISA) is used to determine the levels of candidate protein. Results A total of 7 pQTL‐SNPs were significantly associated with altered LUAD risk (p 1, p