Prostate cancer cells (PC-3 and Du-145) underwent chemotaxis in response to increasing doses of recombinant CCL7 (Fig. 2b) and their migration was inhibited by CCL7 neutralizing polyclonal antibody (pAb) when Ad-CM was used as a chemoattractant (Fig. 2c). The gene discussed is CCL7; the disease is prostate carcinoma.