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)
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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Times Cited
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Axon ; Axon Initial Segment ; Frontotemporal Lobar Degeneration ; Ftld ; Lysosome ; Motoneurons ; Retrograde ; Tmem106b; Frontotemporal Lobar Degeneration; Dementia; Progranulin; Mechanisms; Mutations; Variants; Proteins; Modifier; Motility
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2020
Prepublished im Jahr
HGF-Berichtsjahr
2020
ISSN (print) / ISBN
2211-1247
e-ISSN
2211-1247
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 30,
Heft: 10,
Seiten: 3506-3519.e6
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Cell Press
Verlagsort
50 Hampshire St, Floor 5, Cambridge, Ma 02139 Usa
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30204 - Cell Programming and Repair
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-500500-001
G-500500-009
Förderungen
Copyright
Erfassungsdatum
2020-04-17