Temporal and sequential transcriptional dynamics define lineage shifts in corticogenesis


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Date

2022-12-15

Publication Type

Journal Article

ETH Bibliography

yes

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Data

Abstract

The cerebral cortex contains billions of neurons, and their disorganization or misspecification leads to neurodevelopmental disorders. Understanding how the plethora of projection neuron subtypes are generated by cortical neural stem cells (NSCs) is a major challenge. Here, we focused on elucidating the transcriptional landscape of murine embryonic NSCs, basal progenitors (BPs), and newborn neurons (NBNs) throughout cortical development. We uncover dynamic shifts in transcriptional space over time and heterogeneity within each progenitor population. We identified signature hallmarks of NSC, BP, and NBN clusters and predict active transcriptional nodes and networks that contribute to neural fate specification. We find that the expression of receptors, ligands, and downstream pathway components is highly dynamic over time and throughout the lineage implying differential responsiveness to signals. Thus, we provide an expansive compendium of gene expression during cortical development that will be an invaluable resource for studying neural developmental processes and neurodevelopmental disorders.

Publication status

published

Editor

Book title

Volume

41 (24)

Pages / Article No.

Publisher

EMBO Press

Event

Edition / version

Methods

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Subject

Cortical development; Lineage specification; Networks; Signaling pathways; Transcriptional landscape

Organisational unit

03791 - Iber, Dagmar / Iber, Dagmar check_circle

Notes

Funding