APAF1 and urinary bladder cancer: Moreover, APAF1 expression in the same 32 pairs of bladder cancer tissues and adjacent normal tissues was measured, and correlation analysis revealed a moderate negative correlation between the expression of miR‐1270 and APAF1 (R = −0.6209, P < 0.001, Fig. 7C), as well as a moderate positive correlation between the expression of Cdr1as and APAF1 (R = 0.4098, P < 0.01; Fig. 7D).