CCL2 and neoplasm: Tumor infiltration of TAMs is often mastered by the Ccl2 chemokine that attracts Ccr2+ monocytes circulating in the blood [10], but in this study the expression of Ccl2 mRNA (Additional file 8: Table S2) and its encoded protein MCP-1 (Additional file 10: Table S4) in tumors were not modulated by treatment and hence cannot explain the effects on TAMs.