Cell-type-specific regulation of APOE and CLU levels in human neurons by the Alzheimer's disease risk gene SORL1.
APOE
Alzheimer's
CLU
CP: Neuroscience
SMAD
SORL1
TGFbeta
amyloid
endolysosomal
retromer
tau
Journal
Cell reports
ISSN: 2211-1247
Titre abrégé: Cell Rep
Pays: United States
ID NLM: 101573691
Informations de publication
Date de publication:
29 08 2023
29 08 2023
Historique:
received:
19
05
2022
revised:
04
07
2023
accepted:
01
08
2023
medline:
4
9
2023
pubmed:
24
8
2023
entrez:
23
8
2023
Statut:
ppublish
Résumé
SORL1 is implicated in the pathogenesis of Alzheimer's disease (AD) through genetic studies. To interrogate the roles of SORL1 in human brain cells, SORL1-null induced pluripotent stem cells (iPSCs) were differentiated to neuron, astrocyte, microglial, and endothelial cell fates. Loss of SORL1 leads to alterations in both overlapping and distinct pathways across cell types, with the greatest effects in neurons and astrocytes. SORL1 loss induces a neuron-specific reduction in apolipoprotein E (APOE) and clusterin (CLU) and altered lipid profiles. Analyses of iPSCs derived from a large cohort reveal a neuron-specific association between SORL1, APOE, and CLU levels, a finding validated in postmortem brain. Enhancement of retromer-mediated trafficking rescues tau phenotypes observed in SORL1-null neurons but does not rescue APOE levels. Pathway analyses implicate transforming growth factor β (TGF-β)/SMAD signaling in SORL1 function, and modulating SMAD signaling in neurons alters APOE RNA levels in a SORL1-dependent manner. Taken together, these data provide a mechanistic link between strong genetic risk factors for AD.
Identifiants
pubmed: 37611586
pii: S2211-1247(23)01005-7
doi: 10.1016/j.celrep.2023.112994
pmc: PMC10568487
mid: NIHMS1928291
pii:
doi:
Substances chimiques
Clusterin
0
Apolipoproteins E
0
SORL1 protein, human
0
LDL-Receptor Related Proteins
0
Membrane Transport Proteins
0
CLU protein, human
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
112994Subventions
Organisme : NIA NIH HHS
ID : U01 AG061356
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG055909
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG072572
Pays : United States
Organisme : NIA NIH HHS
ID : RF1 AG072167
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG061359
Pays : United States
Organisme : NINDS NIH HHS
ID : RF1 NS117446
Pays : United States
Organisme : NIA NIH HHS
ID : RF1 AG057457
Pays : United States
Organisme : NIA NIH HHS
ID : F31 AG063399
Pays : United States
Organisme : NIA NIH HHS
ID : RF1 AG042776
Pays : United States
Commentaires et corrections
Type : UpdateOf
Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests The authors declare no competing interests.
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