MKI67 and pancreatitis: Pancreatitis-induced tuft cells (Cox1+) express tuft cell master regulator Pou2f3 (97%+, 189/195 cells, 4 mice), and consistent with KrasG12D-induced tuft cells, are not proliferative, (0% Ki67+, 150/150 cells, 3 mice) (Figures 1H,I; Delgiorno et al., 2014; Gerbe et al., 2016).