Figure 3. Schema for representing the experiment procedures (A). Protein expression of CD204 was detected by Western blotting (B, C). Proliferation of breast cancer cells alone (Con) or co-cultured with macrophages transfected with negative control plasmid (Vec) or macrophages transfected with CD204 plasmid (OE) was assessed by CCK-8 and colony formation assays (D, E).