This attraction was independent of previously described “find me” signals released by cancer cells and thymocytes including nucleotides and the lipid lysophosphatidylcholine (LPC) [23, 24] and only partially the result of production by adipocytes of the chemokine monocyte chemoattractant protein-1 or monocyte chemotactic protein-1 (MCP-1). This evidence concerns the gene CCL2 and cancer.