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, 3 (5), 519-32

Self-organized Formation of Polarized Cortical Tissues From ESCs and Its Active Manipulation by Extrinsic Signals

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Self-organized Formation of Polarized Cortical Tissues From ESCs and Its Active Manipulation by Extrinsic Signals

Mototsugu Eiraku et al. Cell Stem Cell.

Abstract

Here, we demonstrate self-organized formation of apico-basally polarized cortical tissues from ESCs using an efficient three-dimensional aggregation culture (SFEBq culture). The generated cortical neurons are functional, transplantable, and capable of forming proper long-range connections in vivo and in vitro. The regional identity of the generated pallial tissues can be selectively controlled (into olfactory bulb, rostral and caudal cortices, hem, and choroid plexus) by secreted patterning factors such as Fgf, Wnt, and BMP. In addition, the in vivo-mimicking birth order of distinct cortical neurons permits the selective generation of particular layer-specific neurons by timed induction of cell-cycle exit. Importantly, cortical tissues generated from mouse and human ESCs form a self-organized structure that includes four distinct zones (ventricular, early and late cortical-plate, and Cajal-Retzius cell zones) along the apico-basal direction. Thus, spatial and temporal aspects of early corticogenesis are recapitulated and can be manipulated in this ESC culture.

Comment in

  • Cortex Shatters the Glass Ceiling
    E Au et al. Cell Stem Cell 3 (5), 472-4. PMID 18983961.
    Recreating developmental structures in vitro has been a primary challenge for stem cell biologists. Recent studies in Cell Stem Cell (Eiraku et al., 2008) and Nature (Gas …

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