PUBLICATION
Apical size and deltaA expression predict adult neural stem cell decisions along lineage progression
- Authors
- Mancini, L., Guirao, B., Ortica, S., Labusch, M., Cheysson, F., Bonnet, V., Phan, M.S., Herbert, S., Mahou, P., Menant, E., Bedu, S., Tinevez, J.Y., Baroud, C., Beaurepaire, E., Bellaiche, Y., Bally-Cuif, L., Dray, N.
- ID
- ZDB-PUB-230902-50
- Date
- 2023
- Source
- Science advances 9: eadg7519eadg7519 (Journal)
- Registered Authors
- Bally-Cuif, Laure, Bedu, Sebastien, Dray, Nicolas, Mancini, Laure, Ortica, Sara
- Keywords
- none
- MeSH Terms
-
- Animals
- Cell Division
- Neural Stem Cells*
- Neurogenesis
- Neurons/physiology
- Zebrafish*
- PubMed
- 37656795 Full text @ Sci Adv
Citation
Mancini, L., Guirao, B., Ortica, S., Labusch, M., Cheysson, F., Bonnet, V., Phan, M.S., Herbert, S., Mahou, P., Menant, E., Bedu, S., Tinevez, J.Y., Baroud, C., Beaurepaire, E., Bellaiche, Y., Bally-Cuif, L., Dray, N. (2023) Apical size and deltaA expression predict adult neural stem cell decisions along lineage progression. Science advances. 9:eadg7519eadg7519.
Abstract
The maintenance of neural stem cells (NSCs) in the adult brain depends on their activation frequency and division mode. Using long-term intravital imaging of NSCs in the zebrafish adult telencephalon, we reveal that apical surface area and expression of the Notch ligand DeltaA predict these NSC decisions. deltaA-negative NSCs constitute a bona fide self-renewing NSC pool and systematically engage in asymmetric divisions generating a self-renewing deltaAneg daughter, which regains the size and behavior of its mother, and a neurogenic deltaApos daughter, eventually engaged in neuronal production following further quiescence-division phases. Pharmacological and genetic manipulations of Notch, DeltaA, and apical size further show that the prediction of activation frequency by apical size and the asymmetric divisions of deltaAneg NSCs are functionally independent of Notch. These results provide dynamic qualitative and quantitative readouts of NSC lineage progression in vivo and support a hierarchical organization of NSCs in differently fated subpopulations.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping