(A) Images of macrophages from apoE°, °CD36°/apoE°, SRA°/apoE°, and CD36°/SRA°/apoE° mice after 10 days in culture (× 100 magnification). Macrophages from apoE° mice showed the greatest degree of spreading, and those from CD36°/SRA°/apoE° showed the least. (B) The results from modified Boyden chamber migration assays. Macrophages from apoE° mice showed the most robust migration in response to 10 ng/mL MCP-1. In comparison, macrophages from CD36°/apoE° and CD36°/SRA°/apoE° demonstrated a significant decrease in migration. Macrophages isolated from all four groups were significantly inhibited in their migration to MCP-1 when co-cultured with 50 µg/mL oxLDL.