THBS2 and colorectal carcinoma: First, we conducted a Gene Set Enrichment Analysis (GSEA) based on the THBS2 expression of CRC samples from TCGA dataset in which all CRC samples were divided into two groups based on the expression level of THBS2, including the high expression of THBS2 group (THBS2 high group) and the low expression of THBS2 group (THBS2 low group).