Similarly, the transmembrane glycoprotein EpCAM on cancer stem cells was analyzed by flow cytometry and indicated that the EpCAM(+) subpopulations in MDA-MB-231 mammospheres (Day 14) were not inhibited by olaparib alone but significantly suppressed by Oligo-Fucoidan and the combined treatment (Fig. 3D). Here, EPCAM is linked to cancer.