Fig. 6

Inhibited survival of MDA-MB-231 cells by XLLXF. a Dose-inhibition curves of XLLXF at 24, 48, and 72 h. b XLLXF causing a reduction in colony number with the increase in concentration. c Immunofluorescent staining of TUNEL (200×) and apoptotic cells stained by red color. d Immunofluorescent staining of JC-1 (400×). Green fluorescence intensity gradually increased and red fluorescence intensity gradually decreased in the apoptotic cells