VEGFA and neoplasm: Similar to the trabecular and cortical bone, we observed the expression of VEGF in the bone marrow of tumor-bearing mice injected with either MDA-MB-231GFP/Luc2 cells plus MC3T3-E1 cells (~ 41% of cells) or MDA-MB-231GFP/Luc2 cells plus EO-231 cells (~ 23% of cells) (Fig. 4).