CCR1 and neoplasm: In the transplanted tumor model, mice reconstituted with Ccr1−/−Cxcr2−/− BM (Ccr1−/−Cxcr2−/− > WT mice) exhibited dramatically smaller tumors compared with recipients of wild-type BM (WT > WT mice), Ccr1−/− BM (Ccr1−/− > WT mice) and Cxcr2−/− BM (Cxcr2−/− > WT mice).