Fig. 5

EPCAM (FL4) expression in a colon-cancer cell-line-spiked sample on day 3 of storage. Colon cancer cells from HCT-116 cancer cell line were spiked into whole blood from a healthy donor. After sample staining with CD45, PECAM1 and EPCAM antibodies, EPCAM positive cells were selected by excluding CD45 and PECAM1 positive cells during gating on FCSExpress V3