Figure 3

Expression of CK19 in A431 cells diluted with human white blood cells at different ratios. A431 cells were mixed with healthy adult white blood cells at different ratios of 1:1 (A), 1:10 (B), 1:102 (C), 1:103 (D), and 1:104 (E). The cell mixture was stained with FITC-anti-CK19 antibody and detected the expression of CK19.