Eleven out of these 16 genes were common with the 27 common upregulated genes in chronic colitis (REG3G, REG3B, CXCL9, CLCA4, IDO1, TGTP1, KHDC1A, MCPT2, MFSD2A, IL2RG, CD79A) (Figure 10A). This evidence concerns the gene IDO1 and Chronic colitis.