Evidence map›Paper›PMID 34099706›Full record

ArticleNature communications2021

Phospholipids of APOE lipoproteins activate microglia in an isoform-specific manner in preclinical models of Alzheimer's disease.

Nicholas F Fitz, Kyong Nyon Nam, Cody M Wolfe, Florent Letronne, Brittany E Playso, Bistra E Iordanova, Takashi D Y Kozai, Richard J Biedrzycki, Valerian E Kagan, Yulia Y Tyurina and 3 more

Open access · goldAbstract readVideo-Audio Media
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

91 citing papers in PubMed, 1 synthesis or guideline pooled it, 126 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
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  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Amyloid-Frontiers in neuroscience · 2026
    Review
  12. Article
  13. Microglial phagocytosis in Alzheimer disease.Nature reviews. Neurology · 2026
    Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Review

31 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Nicholas F Fitz *Deparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
Kyong Nyon Nam *Deparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
Cody M Wolfe *Deparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0003-2874-4944
Florent LetronneDeparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
Brittany E PlaysoDeparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
Bistra E IordanovaDepartment of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0001-7015-5006
Takashi D Y KozaiDepartment of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.
Richard J BiedrzyckiDeparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
Valerian E KaganDeparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0002-7245-1885
Yulia Y TyurinaDeparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA.
Xianlin HanBarshop Institute for Longevity and Aging Studies, San Antonio, TX, USA.ORCID 0000-0002-8615-2413
Iliya LefterovDeparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA. iliyal@pitt.edu.
Radosveta KoldamovaDeparment of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA. radak@pitt.edu.ORCID 0000-0002-6761-0984
University of Pittsburgh · US

Funding

TRANSGENIC COREP30AG013319 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI PETER J HORNSBY · 1995 to 2026
$30.6M
Research Education ComponentP30AG066468 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HOWARD J AIZENSTEIN · 2020 to 2026
$29.4M
University of Kentucky Alzheimer's Disease Core Center - Biomarker CoreP30AG028383 · NIA · UNIVERSITY OF KENTUCKY · PI SCHMITT, FREDERICK · 2006 to 2020
$23.3M
Physical exercise and Blood-brain communication: exosomes, Klotho and choroid plexusR01AG066198 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI AMBROSIO, FABRISIA, KOLDAMOVA, RADOSVETA · 2020 to 2024
$3.8M
The interplay between Tau and ncRNAs – genomic and epigenomic clues to early AD pathogenesisR01AG077636 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI RADOSVETA KOLDAMOVA, ILIYA LEFTEROV · 2022 to 2026
$3.5M
APOE Orchestrated Molecular Signatures in Aging Brain and AD-the Contribution of APOE2R01AG057565 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KOLDAMOVA, RADOSVETA, LEFTEROV, ILIYA · 2018 to 2022
$3.2M
Neurovascular and metabolic sex differences in contributions to cognitive impairment and dementia including Alzheimer's diseaseRF1NS116450 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI IORDANOVA, BISTRA · 2020 to 2020
$2.6M
Age dependent APOE isoform specific effect on immune receptor mediated phagocytosis in brainRF1AG056371 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KOLDAMOVA, RADOSVETA, LEFTEROV, ILIYA · 2017 to 2018
$2.3M
Mechanisms behind Electrode Induced BBB damage's impact on neural recordingR01NS094396 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KOZAI, TAKASHI DANIEL YOSHIDA · 2015 to 2019
$2.2M
APOE orchestrated ''molecular signatures'' in aging brain and AD - the contribution of APOE2R56AG057565 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KOLDAMOVA, RADOSVETA, LEFTEROV, ILIYA · 2017 to 2017
$441k
NIA NIH HHS P30 AG013319NIA NIH HHS P30 AG028383NIA NIH HHS P30 AG066468NIA NIH HHS R01 AG057565NIA NIH HHS R01 AG066198NIA NIH HHS R01 AG077636NIA NIH HHS R56 AG057565NIA NIH HHS RF1 AG056371NINDS NIH HHS R01 NS094396NINDS NIH HHS RF1 NS116450
6 · The paper itself

Abstract

APOE and Trem2 are major genetic risk factors for Alzheimer's disease (AD), but how they affect microglia response to Aβ remains unclear. Here we report an APOE isoform-specific phospholipid signature with correlation between human APOEε3/3 and APOEε4/4 AD brain and lipoproteins from astrocyte conditioned media of APOE3 and APOE4 mice. Using preclinical AD mouse models, we show that APOE3 lipoproteins, unlike APOE4, induce faster microglial migration towards injected Aβ, facilitate Aβ uptake, and ameliorate Aβ effects on cognition. Bulk and single-cell RNA-seq demonstrate that, compared to APOE4, cortical infusion of APOE3 lipoproteins upregulates a higher proportion of genes linked to an activated microglia response, and this trend is augmented by TREM2 deficiency. In vitro, lack of TREM2 decreases Aβ uptake by APOE4-treated microglia only, suggesting TREM2-APOE interaction. Our study elucidates phenotypic and transcriptional differences in microglial response to Aβ mediated by APOE3 or APOE4 lipoproteins in preclinical models of AD.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAmyloid beta-Protein PrecursorAnimalsApolipoprotein E3Apolipoprotein E4BrainDisease Models, AnimalFemaleHumansMaleMembrane GlycoproteinsMiceMice, TransgenicMicrogliaAmyloid beta-Protein PrecursorApolipoprotein E3Apolipoprotein E4APP protein, humanMembrane GlycoproteinsPhospholipidsPresenilin-1Protein IsoformsPSEN1 protein, humanReceptors, ImmunologicTrem2 protein, mouse

Identifiers

PMID34099706
PMCPMC8184801
OpenAlexW3170765444

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.