(A) Treatment of iPSCs in mesoderm induction medium (MIM) from day 1 to day 5 increases the expression of mesoderm-specific transcripts, as determined by qPCR. Means ± SDs shown.
(B) iPSCs differentiated in MIM show predominant expression of FOXF1 transcript (day 5, qPCR), indicative of splanchnic mesoderm formation Means ± SDs of three replicates shown.
(C) iPSCs differentiated in MIM induce expression of FOXF1 protein, as determined by western blot. β-Tubulin is the loading control.
(D) Treatment with MIM results in >95% FOXF1+ cells (red), as determined by immunofluorescence staining (n = 3, 20× images, representative image shown). Scale bar, 100 μm. Counterstaining with DAPI (blue).