FOXL2 and neoplasm: Significant expression of FOXL2 was confirmed by WB and FACS (Supplemental Figure 4B and Supplemental Figure 4, C and D, left panels), and no difference in both in vitro (not shown) and in vivo tumor progression between the WT and the FOXL2-expressing cell lines was observed (Supplemental Figure 4, C and D, right panels).