The PPI network of LILRB1 and related genes in glioma was created by Cytoscape (Additional file 1: Supplementary Figure S1A), and the top 10 hub genes of LILRB1 discovered by the CytoHubba plugin were ranked in terms of the NCC score (Additional file 1: Supplementary Figure S1B). This evidence concerns the gene LILRB1 and central nervous system cancer.