CXCL9 and lung adenocarcinoma: Analysis of NSCLC data from The Cancer Genome Atlas (TCGA) identified a strong correlation (Spearman correlation coefficient >0.55) among the expression of CXCL9, CXCL10, and their cognate receptor (CXCR3) in both lung adenocarcinoma (LUAD) and lung squamous carcinoma (LUSC) (Figures 1A and 1B).