Description
HES4 hESC were cultured in serum media and maintained on a layer of mouse embryonic fibroblast feeder cells at a density of 6 x 104 cells/cm2. For differentiation: hESC were differentiated for a total of 14 days. Differentiation was induced by passaging 4 human ES cell pieces onto 12 well plates seeded with 0.67 x 10E4 cells/cm2. Cells were maintained in media containing 20% FCS for 2 days before media containing 5% FCS was used. Reduced serum media was changed every second day for the remaining 12 days