Figure 4From: Synergistic anti-proliferative effects of gambogic acid with docetaxel in gastrointestinal cancer cell lines Induction of apoptotic cell death by GA and Doc. After 48 h incubation with GA, Doc or GA plus Doc at the indicated concentrations, cells were stained with annexin-V and PI as described in Methods. Apoptosis of BGC-823 (A), MKN-28 (B), LOVO (C) and SW-116 (D) cells was analyzed by flow cytometry.Back to article page