D. Tumor volume quantification in 3 weeks glioma implanted mice treated with recombinant CSF1, anti-CSF1 antibody or control antibody. Recombinant CSF1 treatment reduces tumor growth compared to control (n=6 mice per group). Statistical analysis: B.D. one-way ANOVA followed by multiple comparisons Tukey's test; Error bars: D: median interquartile. Scale bar: 100µm. 