The following formula was used: [Expression level of FABP4 * (0.0169)] + [Expression level of IGKV1-33 * (0.0288)] + [Expression level of IGKV2D-40 * (0.01050)] + [Expression level of IGLV6-57 * (0.0021)] + [Expression level of NGF * 1.1134] + [Expression level of RETNLB * (0.0045)] + [Expression level of UCN * (0.3985)] + [Expression level of VIP * (0.0617)] + [Expression level of NGFR * (-0.2621)] + [Expression level of OXTR * (0.2656)].Thus, we show that this prognostic index can effectively and accurately stratify CRC patients. The gene discussed is IGKV2D-40; the disease is colorectal carcinoma.