Kaji, S.* ; Berghoff, S.A.* ; Spieth, L.* ; Schlaphoff, L.* ; Sasmita, A.O.* ; Vitale, S.* ; Büschgens, L.* ; Kedia, S.* ; Zirngibl, M.* ; Nazarenko, T.* ; Damkou, A.* ; Hosang, L.* ; Depp, C.* ; Kamp, F.* ; Scholz, P.* ; Ewers, D.* ; Giera, M.* ; Ischebeck, T.* ; Wurst, W. ; Wefers, B. ; Schifferer, M.* ; Willem, M.* ; Nave, K.A.* ; Haass, C.* ; Arzberger, T.* ; Jäkel, S.* ; Wirths, O.* ; Saher, G.* ; Simons, M.*
Apolipoprotein E aggregation in microglia initiates Alzheimer's disease pathology by seeding β-amyloidosis.
Immunity 57, 2651-2668.e12 (2024)
The seeded growth of pathogenic protein aggregates underlies the pathogenesis of Alzheimer's disease (AD), but how this pathological cascade is initiated is not fully understood. Sporadic AD is linked genetically to apolipoprotein E (APOE) and other genes expressed in microglia related to immune, lipid, and endocytic functions. We generated a transgenic knockin mouse expressing HaloTag-tagged APOE and optimized experimental protocols for the biochemical purification of APOE, which enabled us to identify fibrillary aggregates of APOE in mice with amyloid-β (Aβ) amyloidosis and in human AD brain autopsies. These APOE aggregates that stained positive for β sheet-binding dyes triggered Aβ amyloidosis within the endo-lysosomal system of microglia, in a process influenced by microglial lipid metabolism and the JAK/STAT signaling pathway. Taking these observations together, we propose a model for the onset of Aβ amyloidosis in AD, suggesting that the endocytic uptake and aggregation of APOE by microglia can initiate Aβ plaque formation.
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Times Cited
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Alzheimer’s Disease ; Apoe ; Inflammation ; Lipids ; Microglia; Amyloid-beta; Alpha-synuclein; Apoe; Trem2; Mice; Neurodegeneration; Metabolism; Deposition; Expression; Peptide
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2024
Prepublished im Jahr
0
HGF-Berichtsjahr
2024
ISSN (print) / ISBN
1074-7613
e-ISSN
1097-4180
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 57,
Heft: 11,
Seiten: 2651-2668.e12
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Cell Press
Verlagsort
Cambridge, Mass.
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
Förderungen
Japan Society for the Promotion of Science (JSPS)
Chan Zuckerberg Initiative
ERC
Alzheimer Forderungs Initiative
Adelson Medical Research Foundation
Klaus Faber Stiftung
Uehara Memorial Foundation
German Research Foundation
Copyright
Erfassungsdatum
2024-11-07