In agreement with our previous in vitro results, control D4M-3A and YUMM1.7 cells grew very fast, whereas IκBζ knockout D4M-3A and YUMM1.7 cells initially formed small palpable tumors 5–7 days after injection, but exhibited strong tumor growth inhibition thereafter (Supplementary Fig. S4a–c). This evidence concerns the gene NFKBIZ and neoplasm.