Figure 1.
Human pluripotent stem cell‐derived neuronal differentiation systems exhibit cell stage‐ and cell state‐associated phenotypic heterogeneity. (A): Schematic outline of the neural induction and differentiation protocols used to derive proliferating neural stem cells (NSCs) and differentiated neurons (NEU) from pluripotent stem cell (PSC) sources. (B): Immunocytochemistry for the NSC marker SOX2 (red) costained with the neural differentiation marker TUJ1 (green) on human embryonic stem cell‐ as well as hiPSC‐derived proliferating NSC and differentiated NEU. Scale bars: 50 μm. (C): Western blot analysis for expression of key cell signaling pathway proteins (MAPK, AKT, JNK, hippo), neural differentiation (synapsin, MAP2, TUJ1, peripherin, ZEB1, GFAP), and proliferation (MYCN, ZO‐1) markers.