Apoptotic activity of caged xanthones from Garcinia hanburyi in cholangiocarcinoma cell lines

Figure 2 Antiproliferative activities of the four caged xanthones against KKU-100 and KKU-M156 cells. Cells were treated with DMSO or indicated amounts of isomorellinol, forbesione, gambogic acid and isomorellin for 72 h. The percent cell viability was determined by SRB assay. Data are expressed as mean ± SE (n = 3).