» Articles » PMID: 20534844

Notch Activity Levels Control the Balance Between Quiescence and Recruitment of Adult Neural Stem Cells

Overview
Journal J Neurosci
Specialty Neurology
Date 2010 Jun 11
PMID 20534844
Citations 120
Authors
Affiliations
Soon will be listed here.
Abstract

The limited generation of neurons during adulthood is controlled by a balance between quiescence and recruitment of neural stem cells (NSCs). We use here the germinal zone of the zebrafish adult telencephalon to examine how the frequency of NSC divisions is regulated. We show, using several in vivo techniques, that progenitors transit back and forth between the quiescent and dividing state, according to varying levels of Notch activity: Notch induction drives progenitors into quiescence, whereas blocking Notch massively reinitiates NSC division and subsequent commitment toward becoming neurons. Notch activation appears predominantly triggered by newly recruited progenitors onto their neighbors, suggesting an involvement of Notch in a self-limiting mechanism, once neurogenesis is started. These results identify for the first time a lateral inhibition-like mechanism in the context of adult neurogenesis and suggest that the equilibrium between quiescence and neurogenesis in the adult brain is controlled by fluctuations of Notch activity, thereby regulating the amount of adult-born neurons.

Citing Articles

Non-apoptotic caspase events and Atf3 expression underlie direct neuronal differentiation of adult neural stem cells.

Rosa F, Dray N, Bedu S, Bally-Cuif L Development. 2024; 151(22).

PMID: 39565097 PMC: 11607687. DOI: 10.1242/dev.204381.


SOX10 mediates glioblastoma cell-state plasticity.

Man K, Wu Y, Gao Z, Spreng A, Keding J, Mangei J EMBO Rep. 2024; 25(11):5113-5140.

PMID: 39285246 PMC: 11549307. DOI: 10.1038/s44319-024-00258-8.


Telencephalic stab wound injury induces regenerative angiogenesis and neurogenesis in zebrafish: unveiling the role of vascular endothelial growth factor signaling and microglia.

Fernezelian D, Rondeau P, Gence L, Diotel N Neural Regen Res. 2024; 20(10):2938-2954.

PMID: 39248179 PMC: 11826465. DOI: 10.4103/NRR.NRR-D-23-01881.


Adult Neurogenesis of Teleost Fish Determines High Neuronal Plasticity and Regeneration.

Pushchina E, Kapustyanov I, Kluka G Int J Mol Sci. 2024; 25(7).

PMID: 38612470 PMC: 11012045. DOI: 10.3390/ijms25073658.


Dissecting the spatiotemporal diversity of adult neural stem cells.

Mitic N, Neuschulz A, Spanjaard B, Schneider J, Fresmann N, Novoselc K Mol Syst Biol. 2024; 20(4):321-337.

PMID: 38365956 PMC: 10987636. DOI: 10.1038/s44320-024-00022-z.


References
1.
Bernardos R, Lentz S, Wolfe M, Raymond P . Notch-Delta signaling is required for spatial patterning and Müller glia differentiation in the zebrafish retina. Dev Biol. 2005; 278(2):381-95. DOI: 10.1016/j.ydbio.2004.11.018. View

2.
Shin J, Poling J, Park H, Appel B . Notch signaling regulates neural precursor allocation and binary neuronal fate decisions in zebrafish. Development. 2007; 134(10):1911-20. DOI: 10.1242/dev.001602. View

3.
Bernardos R, Barthel L, Meyers J, Raymond P . Late-stage neuronal progenitors in the retina are radial Müller glia that function as retinal stem cells. J Neurosci. 2007; 27(26):7028-40. PMC: 6672216. DOI: 10.1523/JNEUROSCI.1624-07.2007. View

4.
Peng C, Yajima H, Burns C, Zon L, Sisodia S, Pfaff S . Notch and MAML signaling drives Scl-dependent interneuron diversity in the spinal cord. Neuron. 2007; 53(6):813-27. PMC: 2768132. DOI: 10.1016/j.neuron.2007.02.019. View

5.
Chapouton P, Jagasia R, Bally-Cuif L . Adult neurogenesis in non-mammalian vertebrates. Bioessays. 2007; 29(8):745-57. DOI: 10.1002/bies.20615. View