ABCG1 and neoplasm: In contrast, myeloid ablation of ABCG1 resulted in a statistically significant decrease (2.7-fold) in numbers of monocytic MDSCs, Ly-6GnegLy-6CHi (median=0.9 and 0.33 × 106 cells/gram tumor tissue in WT and G1−M/−M, respectively, p<0.01, Figure 5B, lower plot).