CDKN2A and dysplasia: We observed that i4F;Ink4a/Arf‐null mice treated with rIL6 tend to present a higher degree of reprogramming, assessed by the extent of pancreatic dysplasia, upon 7 days of doxycycline treatment (0.2 mg/ml) compared to i4F; Ink4a/Arf‐null controls (Figure S1).