Evidence map›Paper›PMID 21206757›Full record

ArticlePloS one2010

Presenilin 2 is the predominant γ-secretase in microglia and modulates cytokine release.

Suman Jayadev, Amanda Case, Alison J Eastman, Huy Nguyen, Julia Pollak, Jesse C Wiley, Thomas Möller, Richard S Morrison, Gwenn A Garden

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
3.7field-weighted citation impact, top 8% 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

37 citing papers in PubMed, 64 citations in OpenAlex.

  1. Distinct and shared effects of individual γ-secretase inhibitors on human keratinocytes.JID innovations : skin science from molecules to population health · 2026
    Article
  2. Article
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  4. Integrated phenotypic and proteomic screening identifies top-tier Alzheimer's disease therapeutic targets.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  5. The connection between autophagy and Alzheimer's disease.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
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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

9 authors at 2 institutions in 1 country.

Suman JayadevDepartment of Neurology, University of Washington, Seattle, Washington, United States of America. sumie@u.washington.edu
Amanda Case
Alison J Eastman
Huy Nguyen
Julia Pollak
Jesse C Wiley
Thomas Möller
Richard S Morrison
Gwenn A Garden
University of Washington · USUniversity of Iowa · US

Funding

THERAPEUTIC EFFECTS OF INTRA-NASAL INSULIN DETEMIRP50AG005136 · NIA · UNIVERSITY OF WASHINGTON · PI KEENE, CHRISTOPHER DIRK · 1985 to 2019
$57.2M
Mechanisms of Neuroprotection by Histone Deacetylase InhibitionR01NS056031 · NINDS · UNIVERSITY OF WASHINGTON · PI MORRISON, RICHARD S · 2008 to 2012
$1.7M
The Role of Presenilins in HIV Associated DementiaK08NS055652 · NINDS · UNIVERSITY OF WASHINGTON · PI JAYADEV, SUMAN · 2006 to 2010
$839k
The Role of p53 in the Regulation of NeuroinflammationR21NS062269 · NINDS · UNIVERSITY OF WASHINGTON · PI GARDEN, GWENN A · 2008 to 2009
$375k
NIA NIH HHS P50 AG005136NIA NIH HHS P50 AG05136NINDS NIH HHS K08 NS055652NINDS NIH HHS NS055652NINDS NIH HHS NS056031NINDS NIH HHS NS062269NINDS NIH HHS R01 NS056031NINDS NIH HHS R21 NS062269
6 · The paper itself

Abstract

Presenilin 1 (PS1) and Presenilin 2 (PS2) are the enzymatic component of the γ-secretase complex that cleaves amyloid precursor protein (APP) to release amyloid beta (Aβ) peptide. PS deficiency in mice results in neuroinflammation and neurodegeneration in the absence of accumulated Aβ. We hypothesize that PS influences neuroinflammation through its γ-secretase action in CNS innate immune cells. We exposed primary murine microglia to a pharmacological γ-secretase inhibitor which resulted in exaggerated release of TNFα and IL-6 in response to lipopolysaccharide. To determine if this response was mediated by PS1, PS2 or both we used shRNA to knockdown each PS in a murine microglia cell line. Knockdown of PS1 did not lead to decreased γ-secretase activity while PS2 knockdown caused markedly decreased γ-secretase activity. Augmented proinflammatory cytokine release was observed after knockdown of PS2 but not PS1. Proinflammatory stimuli increased microglial PS2 gene transcription and protein in vitro. This is the first demonstration that PS2 regulates CNS innate immunity. Taken together, our findings suggest that PS2 is the predominant γ-secretase in microglia and modulates release of proinflammatory cytokines. We propose PS2 may participate in a negative feedback loop regulating inflammatory behavior in microglia.

Indexed as

Amyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAnimalsCell LineCentral Nervous SystemCytokinesGene Expression Regulation, EnzymologicImmunity, InnateInterleukin-6LipopolysaccharidesMiceMicrogliaPresenilin-1Presenilin-2Tumor Necrosis Factor-alphaAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesCytokinesInterleukin-6LipopolysaccharidesPresenilin-1Presenilin-2Tumor Necrosis Factor-alpha

Identifiers

PMID21206757
PMCPMC3012089
OpenAlexW2054040386

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.