“…18) There have also been several reports of other prenylflavonoids derived from Epimedium as an anticancer agent to MCF7 cells, 19,20) Hec1A cells, 21) PC-3 cells, 22) HEPG2 cells, 23,24) SMMC-7721 cells, 25) and SK-Hep-1 cells. 26) However, the paucity of literature y To whom correspondence should be addressed. Xiaoguang CHEN, Tel: +86-10-63165207; Fax: +86-10-63017757; E-mail: chxg@imm.ac.cn; Baolin GUO, Tel: +86-10-57833172; Fax: +86-10-57833288; E-mail: guobaolin010@163.com Abbreviations: AIF, apoptosis-inducing factor; BPB, bromophenol blue; PVDF, polyvinylidene fluoride; PI, propidium iodide; DAPI, 4 0 ,6-diamidino-2-phenylindole; JC-1, 5,5 0 ,6,6 0 -tetra-chloro-1,1 0 ,3,3 0 -tetra-ethylbenzimidazolyl-carbocyanine iodide; MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide; PARP, poly (ADP-ribose) polymerase; TNF, tumor necrosis factor; TRAIL, TNF-related apoptosis-inducing ligand; PAGE, polyacrylamide gel electrophoresis about the IcaS role in breast cancer prompted us to investigate this, and we observed that IcaS inhibited the proliferation of both MCF7 and MDA-MB-231 cells.…”