Fig. 7. Release and differentiation of mESC spheroids.
a Schematics of mESC culturing, release of spheroids, and expression of germ layer markers in replated aggregates. b Bright-field images of mESC spheroids before and after release from S100 culture materials and formation of differentiating colonies, observed via the outgrowth of cells in the periphery. c Representative fluorescence images of immunostained markers for germ layers in the colonies after 14 days.