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Lüningschrör, P.* ; Werner, G.* ; Stroobants, S.* ; Kakuta, S.* ; Dombert, B.* ; Sinske, D.* ; Wanner, R.* ; Lüllmann-Rauch, R.* ; Wefers, B. ; Wurst, W. ; D'Hooge, R.* ; Uchiyama, Y.* ; Sendtner, M.* ; Haass, C.* ; Saftig, P.* ; Knöll, B.* ; Capell, A.* ; Damme, M.*

The FTLD risk factor TMEM106B regulates the transport of lysosomes at the axon initial segment of motoneurons.

Cell Rep. 30, 3506-3519.e6 (2020)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
Genetic variations in TMEM106B, coding for a lysosomal membrane protein, affect frontotemporal lobar degeneration (FTLD) in GRN- (coding for progranulin) and C9orf72-expansion carriers and might play a role in aging. To determine the physiological function of TMEM106B, we generated TMEM106B-deficient mice. These mice develop proximal axonal swellings caused by drastically enlarged LAMP1-positive vacuoles, increased retrograde axonal transport of lysosomes, and accumulation of lipofuscin and autophagosomes. Giant vacuoles specifically accumulate at the distal end and within the axon initial segment, but not in peripheral nerves or at axon terminals, resulting in an impaired facial-nerve-dependent motor performance. These data implicate TMEM106B in mediating the axonal transport of LAMP1-positive organelles in motoneurons and axonal sorting at the initial segment. Our data provide mechanistic insight into how TMEM106B affects lysosomal proteolysis and degradative capacity in neurons.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Axon ; Axon Initial Segment ; Frontotemporal Lobar Degeneration ; Ftld ; Lysosome ; Motoneurons ; Retrograde ; Tmem106b; Frontotemporal Lobar Degeneration; Dementia; Progranulin; Mechanisms; Mutations; Variants; Proteins; Modifier; Motility
Language english
Publication Year 2020
HGF-reported in Year 2020
ISSN (print) / ISBN 2211-1247
e-ISSN 2211-1247
Journal Cell Reports
Quellenangaben Volume: 30, Issue: 10, Pages: 3506-3519.e6 Article Number: , Supplement: ,
Publisher Cell Press
Publishing Place 50 Hampshire St, Floor 5, Cambridge, Ma 02139 Usa
Reviewing status Peer reviewed
Institute(s) Institute of Developmental Genetics (IDG)
POF-Topic(s) 30204 - Cell Programming and Repair
Research field(s) Genetics and Epidemiology
PSP Element(s) G-500500-001
G-500500-009
DOI 10.1016/j.celrep.2020.02.060
WOS ID WOS:000519189700025
Scopus ID 85080997290
PubMed ID 32160553
Erfassungsdatum 2020-04-17
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