We generated stable human cystatin C-expressing B16-F10 (B16-F10-hcystatin C) and CT-2A (CT-2A-hcystatin C) glioma cell lines (Supplementary Fig. 7a, b) and implanted them into LILRB2KI or LILRB5KI mice. This evidence concerns the gene CST3 and glioma.