CCL2 and neoplasm: Similarly, the CC chemokine ligand 2 CCL2/MCP-1 (MCP=monocyte chemoattractant protein 1) has been identified as a major chemokine for macrophages recruitment in several human tumours, including the bladder (Amann et al, 1998), cervix (Riethdorf et al, 1996), ovary (Negus et al, 1995), lung (Arenberg et al, 2000) and breast (Valkovic et al, 1998; Ueno et al, 2000).