KCNQ4 and breast cancer: When BC069792 was simultaneously overexpressed with hsa-miR-658 or hsa-miR-4739, the inhibition of breast cancer cell proliferation and migration by BC069792 was reversed (Fig. 7a, b), the elevated KCNQ4 protein expression level was decreased (Fig. 7c), and the level of reduced p-AKT protein was increased (Fig. 7d).