Fig. 4From: Shikonin and 4-hydroxytamoxifen synergistically inhibit the proliferation of breast cancer cells through activating apoptosis signaling pathway in vitro and in vivoEffects of SK, 4-OHT, and the combination on the ROS production in cancer cells. a MCF-7 cell; b MDA-MB-435S cell. The image shown is the most representative result of three replicatesBack to article page