FIGURE 5.

P2X7R promotes tumour‐associated macrophage recruitment. Flow cytometry analysis of the expression of CD11b, F4/80 and Gr1 in CT26‐Con and CT26‐mP2X7R tumours from the caecum. A, The percentage of total cells that were positive for either CD11b+/F4/80+ (a marker for macrophages) or B, CD11b+/Gr1+ (a marker for neutrophils). C, Immunohistochemical staining for the expression of F4/80 in CT26‐Con‐ or CT26‐mP2X7R‐derived tumours. Scale bar: 25 μm. D, Volume of indicated tumours (n = 6). E, Tumour weight of indicated tumours. The results are expressed as the means ± SD of 3 independent experiments. **P < 0.01