MSCs and SB623 cells secrete pro-angiogenic factors. The table shows average concentration of angiogenic cytokines found in OptiMEM conditioned for 72 hours by either MSCs or SB623 cells from 4 matched human donor lots. Note the relatively high expression of VEGF compared to other cytokines present. Grey highlights indicate factors which are consistently different between MSCs and SB623 cells. These 4 cytokines are plotted by donor showing that, though there is a lot of donor variability, there are consistent trends across multiple donors.