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Human Cortical Organoids Expose a Differential Function of GSK3 on Cortical Neurogenesis

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Title: Human Cortical Organoids Expose a Differential Function of GSK3 on Cortical Neurogenesis
Authors: Alejandro López-Tobón, Carlo Emanuele Villa, Cristina Cheroni, Sebastiano Trattaro, Nicolò Caporale, Paola Conforti, Raffaele Iennaco, Maria Lachgar, Marco Tullio Rigoli, Berta Marcó de la Cruz, Pietro Lo Riso, Erika Tenderini, Flavia Troglio, Marco De Simone, Isabel Liste-Noya, Giuseppe Macino, Massimiliano Pagani, Elena Cattaneo, Giuseppe Testa
Source: Stem Cell Reports, Vol 13, Iss 5, Pp 847-861 (2019)
Publisher Information: Elsevier, 2019.
Publication Year: 2019
Collection: LCC:Medicine (General)
LCC:Biology (General)
Subject Terms: Medicine (General), R5-920, Biology (General), QH301-705.5
More Details: Summary: The regulation of the proliferation and polarity of neural progenitors is crucial for the development of the brain cortex. Animal studies have implicated glycogen synthase kinase 3 (GSK3) as a pivotal regulator of both proliferation and polarity, yet the functional relevance of its signaling for the unique features of human corticogenesis remains to be elucidated. We harnessed human cortical brain organoids to probe the longitudinal impact of GSK3 inhibition through multiple developmental stages. Chronic GSK3 inhibition increased the proliferation of neural progenitors and caused massive derangement of cortical tissue architecture. Single-cell transcriptome profiling revealed a direct impact on early neurogenesis and uncovered a selective role of GSK3 in the regulation of glutamatergic lineages and outer radial glia output. Our dissection of the GSK3-dependent transcriptional network in human corticogenesis underscores the robustness of the programs determining neuronal identity independent of tissue architecture. : In this article, Testa and colleagues show that the chronic inhibition of GSK3 in human cortical organoids causes early disruption of neural progenitor proliferation and polarity, which turns at later stages into a pronounced defect in neurogenesis and outer radial glia production. Key words: human brain organoids, single cell transcriptomics, GSK3, corticogenesis, outer radial glia
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2213-6711
Relation: http://www.sciencedirect.com/science/article/pii/S2213671119303340; https://doaj.org/toc/2213-6711
DOI: 10.1016/j.stemcr.2019.09.005
Access URL: https://doaj.org/article/59aa1d8855cf47e49b953ab485034343
Accession Number: edsdoj.59aa1d8855cf47e49b953ab485034343
Database: Directory of Open Access Journals
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  Data: Summary: The regulation of the proliferation and polarity of neural progenitors is crucial for the development of the brain cortex. Animal studies have implicated glycogen synthase kinase 3 (GSK3) as a pivotal regulator of both proliferation and polarity, yet the functional relevance of its signaling for the unique features of human corticogenesis remains to be elucidated. We harnessed human cortical brain organoids to probe the longitudinal impact of GSK3 inhibition through multiple developmental stages. Chronic GSK3 inhibition increased the proliferation of neural progenitors and caused massive derangement of cortical tissue architecture. Single-cell transcriptome profiling revealed a direct impact on early neurogenesis and uncovered a selective role of GSK3 in the regulation of glutamatergic lineages and outer radial glia output. Our dissection of the GSK3-dependent transcriptional network in human corticogenesis underscores the robustness of the programs determining neuronal identity independent of tissue architecture. : In this article, Testa and colleagues show that the chronic inhibition of GSK3 in human cortical organoids causes early disruption of neural progenitor proliferation and polarity, which turns at later stages into a pronounced defect in neurogenesis and outer radial glia production. Key words: human brain organoids, single cell transcriptomics, GSK3, corticogenesis, outer radial glia
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