An immune signature consisting of BCL3, CCL2, CCL3, CCL4L1, CCL4L2, CCL7, CD83, CTSL1, CXCL2, CXCL3, DEFA1, DUSP4, EREG, GNL1, GPR183, HBEGF, IL10, IL1R1, IL1R2, IL1RAP, IL6, IL8, IRS2, JUN, NFIL3, NFKBIA, NLRP3, OASL, OSM, PDCD1, PELI1, PIK3R1, PNP, PTGER4, RGCC, RGS1, RIPK2, SEMA7A, THBS1, TNFAIP3, ULBP2 and VEGFA, was enriched (p = 2.6 × 10−11) in PBMCs from CRC. This evidence concerns the gene RGCC and colorectal carcinoma.