PATZ1 and neoplasm: Kaplan–Meyer curves analyzing tumor engraftment in function of the time from injection, followed by Log-rank (Mantell–Cox test), showed a highly significant difference between FRTL5-Ras-PATZ1-injected mice and their controls (P = 0.0018; HR = 0.1914; 95% CI 0.01456-0.2701) (Figure 1a).