Figure 6. Analysis of VIPR1 expression characteristics in LUAD. (A) The tissue-specific expression of VIPR1 mRNA from GTEx. (B) Relative protein expression levels of VIPR1 in three LUAD proteomic data sets. (C) GSEA of the transcriptome of patients with high VIPR1 expression relative to patients with low VIPR1 expression according to TCGA and Chinese large-scale LUAD datasets. (D) Five representative pathways that are significantly enriched in the low VIPR1 expression group are shown.