CCR2 and B-cell chronic lymphocytic leukemia: Intraperitoneal CLL treatment did not affect the distribution of intestinal CX3CR1+ macrophages (Fig. 2d, e) or the accumulation of CCR2+ monocytes within the intestinal injury site (Supplementary Fig. 5a, b) but significantly suppressed the number of large F4/80hi macrophages in the intestinal injury site (Fig. 2f, g).