Figure 1. Apoptosis induction in human MM cells by 43 GTEs derived from separate cultivars.

(A) U266 cells were treated with each green tea extract (GTE) for 96 h. Apoptotic cells were stained with Annexin V-Alexa Fluor 488 and propidium iodide and then apoptosis quantified using flow cytometry. All data expressed as mean ± SEM (n = 3). (B) Apoptosis-inducing activity (%) was calculated from the total population of Annexin V-positive cells.