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@ARTICLE{Colombo:154831,
author = {Colombo, Alessio Vittorio and Dinkel, Lina and Müller,
Stephan A and Sebastian Monasor, Laura and Schifferer,
Martina and Cantuti-Castelvetri, Ludovico and König, Jasmin
and Vidatic, Lea and Bremova-Ertl, Tatiana and Lieberman,
Andrew P. and Hecimovic, Silva and Simons, Mikael and
Lichtenthaler, Stefan F. and Strupp, Michael and Schneider,
Susanne A. and Tahirovic, Sabina},
title = {{L}oss of {NPC}1 enhances phagocytic uptake and impairs
lipid trafficking in microglia},
journal = {Nature Communications},
volume = {12},
number = {1},
issn = {2041-1723},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {DZNE-2021-00409},
pages = {1158},
year = {2021},
abstract = {Niemann-Pick type C disease is a rare neurodegenerative
disorder mainly caused by mutations in NPC1, resulting in
abnormal late endosomal/lysosomal lipid storage. Although
microgliosis is a prominent pathological feature, direct
consequences of NPC1 loss on microglial function remain not
fully characterized. We discovered pathological proteomic
signatures and phenotypes in NPC1-deficient murine models
and demonstrate a cell autonomous function of NPC1 in
microglia. Loss of NPC1 triggers enhanced phagocytic uptake
and impaired myelin turnover in microglia that precede
neuronal death. Npc1-/- microglia feature a striking
accumulation of multivesicular bodies and impaired
trafficking of lipids to lysosomes while lysosomal
degradation function remains preserved. Molecular and
functional defects were also detected in blood-derived
macrophages of NPC patients that provide a potential tool
for monitoring disease. Our study underscores an essential
cell autonomous role for NPC1 in immune cells and implies
microglial therapeutic potential.},
keywords = {Animals / Blotting, Western / Cells, Cultured /
Cholesterol: metabolism / Female / Humans / Intracellular
Signaling Peptides and Proteins: genetics / Intracellular
Signaling Peptides and Proteins: metabolism / Male / Mass
Spectrometry / Mice / Mice, Inbred C57BL / Mice, Knockout /
Microglia: metabolism / Myelin Sheath: metabolism /
Niemann-Pick C1 Protein / Niemann-Pick Disease, Type C:
genetics / Niemann-Pick Disease, Type C: metabolism /
Phagocytosis: genetics / Phagocytosis: physiology /
Proteomics: methods},
cin = {AG Tahirovic / AG Lichtenthaler / AG Simons},
ddc = {500},
cid = {I:(DE-2719)1140003 / I:(DE-2719)1110006 /
I:(DE-2719)1110008},
pnm = {351 - Brain Function (POF4-351) / 352 - Disease Mechanisms
(POF4-352) / 351 - Brain Function (POF4-351) / 352 - Disease
Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-351 / G:(DE-HGF)POF4-352 /
G:(DE-HGF)POF4-351 / G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33627648},
pubmed = {33627648},
pmc = {pmc:PMC7904859},
doi = {10.1038/s41467-021-21428-5},
url = {https://pub.dzne.de/record/154831},
}