In six ovarian cancer cell lines (SKOV-3, IGROV, OVCAR-3, CAOV-3, PEO1, and PEO14) the expression of CXCR4 mRNA was demonstrated, but no expression was detected for the other analyzed chemokine receptors (i.e., CCR1, CCR2a, CCR2b, CCR3, CCR4, CCR5, CCR7, CCR8, CXCR1, CXCR2, CXCR3, CXCR5, or CX3CR1) [121] (Figure 8). The gene discussed is CCR2; the disease is ovarian carcinoma.