(E) Kaplan-Meier survival curves of KLF4 loxp/loxp mice with intraperitoneal injection of AAV7-Cre-mCherry or AAV7-mCherry followed by the treatment with 8-Gy (total-body) γ-irradiation 5-weeks after then. AAV7-mCherry, n=10 per group; AAV7-Cre-mCherry, n=12 per group. p = 0.0023, log-rank test. 