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@ARTICLE{Safaiyani:157763,
author = {Safaiyani, Shima and Besson-Girard, Simon and Kaya,
Tuğberk and Cantuti-Castelvetri, Ludovico and Liu, Lu and
Ji, Hao and Schifferer, Martina and Gouna, Garyfallia and
Usifo, Fumere and Kannaiyan, Nirmal and Fitzner, Dirk and
Xiang, Xianyuan and Rossner, Moritz J and Brendel, Matthias
and Gökce, Ozgun and Simons, Mikael},
title = {{W}hite matter aging drives microglial diversity.},
journal = {Neuron},
volume = {109},
number = {7},
issn = {0896-6273},
address = {New York, NY},
publisher = {Elsevier},
reportid = {DZNE-2021-01220},
pages = {1100 - 1117.e10},
year = {2021},
abstract = {Aging results in gray and white matter degeneration, but
the specific microglial responses are unknown. Using
single-cell RNA sequencing from white and gray matter
separately, we identified white matter-associated microglia
(WAMs), which share parts of the disease-associated
microglia (DAM) gene signature and are characterized by
activation of genes implicated in phagocytic activity and
lipid metabolism. WAMs depend on triggering receptor
expressed on myeloid cells 2 (TREM2) signaling and are aging
dependent. In the aged brain, WAMs form independent of
apolipoprotein E (APOE), in contrast to mouse models of
Alzheimer's disease, in which microglia with the WAM gene
signature are generated prematurely and in an APOE-dependent
pathway similar to DAMs. Within the white matter, microglia
frequently cluster in nodules, where they are engaged in
clearing degenerated myelin. Thus, WAMs may represent a
potentially protective response required to clear
degenerated myelin accumulating during white matter aging
and disease.},
keywords = {Aging: physiology / Alzheimer Disease: genetics / Animals /
Apolipoproteins E: genetics / Demyelinating Diseases:
pathology / Gene Expression Regulation / Gray Matter:
cytology / Gray Matter: growth $\&$ development /
Immunohistochemistry / Membrane Glycoproteins: biosynthesis
/ Membrane Glycoproteins: genetics / Mice / Mice, Inbred
C57BL / Mice, Knockout / Microglia: physiology / Microglia:
ultrastructure / Myelin Sheath: metabolism / Receptors,
Immunologic: biosynthesis / Receptors, Immunologic: genetics
/ Sequence Analysis, RNA / Signal Transduction: physiology /
Single-Cell Analysis / White Matter: cytology / White
Matter: growth $\&$ development / ApoE (Other) / Trem2
(Other) / microglia, aging (Other) / myelin (Other) / white
matter (Other) / Apolipoproteins E (NLM Chemicals) /
Membrane Glycoproteins (NLM Chemicals) / Receptors,
Immunologic (NLM Chemicals) / Trem2 protein, mouse (NLM
Chemicals)},
cin = {AG Simons / AG Misgeld},
ddc = {610},
cid = {I:(DE-2719)1110008 / I:(DE-2719)1110000-4},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33606969},
doi = {10.1016/j.neuron.2021.01.027},
url = {https://pub.dzne.de/record/157763},
}