COL1A1 and neoplasm: In addition, based on the TCGA dataset, the results of 59 paired samples’ differential mRNA expression of genes are shown in Fig. 7B. PPARG, HLA-DQA1, SFTPB, MS4A7, and IL7R are lowly expressed in tumor tissues, and COL1A1, CYP24A1, GOLM1, and LGR4 are highly expressed.