MNX1 and Familial prostate cancer: To further explore the effects of MNX1‐AS1 on prostatic cancer cell function, two specific siRNAs (siMNX1‐AS1#1 and siMNX1‐AS1#2) were used to knock down MNX1‐AS1, and their efficiency was tested in prostatic cancer DU145 and PC3 cells (Fig. 2A).