(A) Cell growth assays were performed on ESCs maintained in 2i+LIF or N2B27 medium.*
(B) Cell death assays were performed on ESCs maintained in 2i+LIF or N2B27 medium.*
(C) ESCs cultured in 2i+LIF or N2B27 medium were immunoblotted for Oct3/4, Nanog, the trimethylation of lysine 27 in histone H3 (H3K27me3), and vinculin as the loading control.*
(D) Sphere formation assays were performed on ESCs maintained in 2i+LIF or N2B27 medium. See corresponding images in Figure S2B.*
(E) AP activity assays were performed on ESCs maintained in 2i+LIF or N2B27 medium. See corresponding images in Figure S2C.*
*The data shown in (A)–(E) are presented as mean ± SD. All experiments were performed at least three independent times, and statistical significance was determined using Student’s t test; ****p < 0.0001; ***p < 0.001; and **p < 0.01. See also Figure S2.