Evidence map›Paper›PMID 34523252›Full record

ArticleFEBS open bio2021

Reduced TREM2 activation in microglia of patients with Alzheimer's disease.

Yuumi Okuzono, Hiroyuki Sakuma, Shuuichi Miyakawa, Masataka Ifuku, Jonghun Lee, Debashree Das, Antara Banerjee, Yang Zhao, Koji Yamamoto, Tatsuya Ando and 1 more

Open access · goldAbstract read
In one paragraph

Article in FEBS open bio, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Cholecalciferol (vitamin D3) is an agonist of the Alzheimer's disease-associated immune receptor TREM2.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Article
  6. Review
  7. Article
  8. Roles of TREM2 in Alzheimer's disease.Translational neurodegeneration · 2025
    Review
  9. Amyloid-Related Imaging Abnormality (ARIA) Beyond the APOE-ε4 Allele.Chronic diseases and translational medicine · 2025
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
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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

11 authors at 3 institutions in 2 countries.

Yuumi OkuzonoImmune Cell Engineered Therapeutics, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Hiroyuki SakumaNeuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Shuuichi MiyakawaImmune Cell Engineered Therapeutics, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Masataka IfukuImmune Cell Engineered Therapeutics, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Jonghun LeeComputational Biology, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Debashree DasEarly Target Discovery, Research, Takeda California, Inc., San Diego, CA, USA.
Antara BanerjeeGI Immunology, Research, Takeda California, Inc., San Diego, CA, USA.
Yang ZhaoComputational Biology, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Koji YamamotoComputational Biology, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Tatsuya AndoComputational Biology, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
Shuji SatoNeuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.ORCID 0000-0002-8423-9750
Takeda (Japan) · JPTakeda (United States) · USTarget (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Loss-of-function variants of triggering receptor expressed on myeloid cells 2 (TREM2) increase the risk of developing Alzheimer's disease (AD). The mechanism through which TREM2 contributes to the disease (TREM2 activation vs inactivation) is largely unknown. Here, we analyzed changes in a gene set downstream of TREM2 to determine whether TREM2 signaling is modified by AD progression. We generated an anti-human TREM2 agonistic antibody and defined TREM2 activation in terms of the downstream expression changes induced by this antibody in microglia developed from human induced pluripotent stem cells (iPSC). Differentially expressed genes (DEGs) following TREM2 activation were compared with the gene set extracted from microglial single nuclear RNA sequencing data of patients with AD, using gene set enrichment analysis. We isolated an anti-TREM2-specific agonistic antibody, Hyb87, from anti-human TREM2 antibodies generated using binding and agonism assays, which helped us identify 300 upregulated and 251 downregulated DEGs. Pathway enrichment analysis suggested that TREM2 activation may be associated with Th2-related pathways. TREM2 activation was lower in AD microglia than in microglia from healthy subjects or patients with mild cognitive impairment. TREM2 activation also showed a significant negative correlation with disease progression. Pathway enrichment analysis of DEGs controlled by TREM2 activity indicated that TREM2 activation in AD may lead to anti-apoptotic signaling, immune response, and cytoskeletal changes in the microglia. We showed that TREM2 activation decreases with AD progression, in support of a protective role of TREM2 activation in AD. In addition, the agonistic anti-TREM2 antibody can be used to identify TREM2 activation state in AD microglia.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsBrainCells, CulturedDisease Models, AnimalGene ExpressionGene Expression RegulationHumansInduced Pluripotent Stem CellsMembrane GlycoproteinsMiceMice, Inbred StrainsMicrogliaReceptors, ImmunologicAmyloid beta-PeptidesMembrane GlycoproteinsReceptors, ImmunologicTREM2 protein, humanAlzheimer's diseasedifferential expression analysisgene set enrichment analysismicrogliasingle-nucleus RNA sequencingTREM2

Identifiers

PMID34523252
PMCPMC8564098
OpenAlexW3201382189

What OpenQuestion holds

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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.