Molecular architecture of the developing mouse brain
By
Gioele La Manno,
Kimberly Siletti,
Alessandro Furlan,
Daniel Gyllborg,
Elin Vinsland,
Christoffer Mattsson Langseth,
Irina Khven,
Anna Johnsson,
Mats Nilsson,
Peter Lönnerberg,
Sten Linnarsson
Posted 03 Jul 2020
bioRxiv DOI: 10.1101/2020.07.02.184051
The mammalian brain develops through a complex interplay of spatial cues generated by diffusible morphogens, cell-cell interactions, and intrinsic genetic programs that result in the generation of likely more than a thousand distinct cell types. Therefore, a complete understanding of mammalian brain development requires systematic mapping of cell states covering the entire relevant spatiotemporal range. Here we report a comprehensive single-cell transcriptome atlas of mouse brain development spanning from gastrulation to birth. We identified almost a thousand distinct cellular states, including the initial emergence of the neuroepithelium, a rich set of region-specific secondary organizers and a complete developmental program for the functional elements of the brain and its enclosing membranes. We used the atlas to directly test the hypothesis that human glioblastoma reflects a return to a developmental cell state. In agreement, most aneuploid tumor cells matched embryonic rather than adult types, while karyotypically normal cells predominantly matched adult immune cell types. ### Competing Interest Statement The authors have declared no competing interest.
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