Figure 4.

Heterogeneous distribution of cells with strong Ki67 expression. (A) Cells with strong Ki67 expression distributed at the periphery of MCF-7 cancer cell clones. (B) Cells with strong Ki67 expression were distributed at one side of the SW480 cell clones. (C) Cells with strong Ki67 expression were distributed at one side of the SGC7901 cell clones. Red arrows indicate the cancer cells with strong Ki67 expression. (A and B: ×200, Goat anti-rabbit IgG-585 of yellow QDs marked Ki67; C: ×200, Goat anti-rabbit IgG-605 of red QDs marked Ki67. Scale bar=50 µm).