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Kjell, J. ; Fischer-Sternjak, J. ; Thompson, A.J.* ; Friess, C.* ; Sticco, M.J.* ; Salinas, F.* ; Cox, J.* ; Martinelli, D.C.* ; Ninkovic, J. ; Franze, K.* ; Schiller, H. B. ; Götz, M.

Defining the adult neural stem cell niche proteome identifies key regulators of adult neurogenesis.

Cell Stem Cell 26, 277-293.e8 (2020)
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The mammalian brain contains few niches for neural stem cells (NSCs) capable of generating new neurons, whereas other regions are primarily gliogenic. Here we leverage the spatial separation of the sub-ependymal zone NSC niche and the olfactory bulb, the region to which newly generated neurons from the sub-ependymal zone migrate and integrate, and present a comprehensive proteomic characterization of these regions in comparison to the cerebral cortex, which is not conducive to neurogenesis and integration of new neurons. We find differing compositions of regulatory extracellular matrix (ECM) components in the neurogenic niche. We further show that quiescent NSCs are the main source of their local ECM, including the multi-functional enzyme transglutaminase 2, which we show is crucial for neurogenesis. Atomic force microscopy corroborated indications from the proteomic analyses that neurogenic niches are significantly stiffer than non-neurogenic parenchyma. Together these findings provide a powerful resource for unraveling unique compositions of neurogenic niches.
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Publication type Article: Journal article
Document type Scientific Article
Keywords C1ql3 ; Cerebral Cortex ; Extracellular Matrix ; Neuroblast ; Olfactory Bulb ; S100a6 ; Subventricular Zone ; Tissue Stiffness ; Transglutaminase2 ; Transit-amplifying Progenitor; Mouse Subependymal Zone; Extracellular-matrix; Progenitor Cells; Neuronal Differentiation; Tenascin-c; Rat-brain; Migration; Lineage; Transplantation; Proliferation
Language english
Publication Year 2020
HGF-reported in Year 2020
ISSN (print) / ISBN 1934-5909
e-ISSN 1875-9777
Journal Cell Stem Cell
Quellenangaben Volume: 26, Issue: 2, Pages: 277-293.e8 Article Number: , Supplement: ,
Publisher Cell Press
Publishing Place Cambridge, Mass.
Reviewing status Peer reviewed
Institute(s) Institute of Stem Cell Research (ISF)
German Center for Lung Research (DZL)
POF-Topic(s) 30204 - Cell Programming and Repair
80000 - German Center for Lung Research
Research field(s) Stem Cell and Neuroscience
Lung Research
PSP Element(s) G-500800-001
G-501800-810
DOI 10.1016/j.stem.2020.01.002
WOS ID WOS:000512951100016
Scopus ID 85078796304
Erfassungsdatum 2020-02-26
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