(A) The GBM sections from the Vehicle-treated mice harbored mostly tumor-associated microglia and few macrophages (first row) which expressed very little MCP-1, whereas the tumors from both the CCP (second row) and CCP + IL12Ab-treated (third row) mice showed both recruited tumor-associated macrophages and resident tumor-associated microglia, both strongly expressing MCP-1. Here, CCL2 is linked to neoplasm.