Evidence map›Paper›PMID 21978883›Full record

ArticleNeuroscience2011

Role of Aβ-receptor for advanced glycation endproducts interaction in oxidative stress and cytosolic phospholipase A₂ activation in astrocytes and cerebral endothelial cells.

S Askarova, X Yang, W Sheng, G Y Sun, J C-M Lee

Abstract read
In one paragraph

Article in Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

51 citing papers in PubMed, 89 citations in OpenAlex.

  1. Review
  2. A perspective: PLA2G4A as drug target for vascular inflammation in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Role of neuroinflammation in neurodegeneration development.Signal transduction and targeted therapy · 2023
    Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Plant Extract ofAntioxidants (Basel, Switzerland) · 2021
    Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Article
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

5 authors at 1 institution in 1 country.

S AskarovaDepartment of Biological Engineering, University of Missouri, Columbia, Missouri 65211, USA.
X Yang
W Sheng
G Y Sun
J C-M Lee
University of Missouri · US

Funding

PATHOGENESIS OF PHOSPHOLIPASES A2 IN ADP01AG018357 · NIA · UNIVERSITY OF MISSOURI-COLUMBIA · PI SUN, GRACE Y · 2001 to 2012
$10.4M
Roles of Tau Oligomers in Alzheimer's VasculopathyR01AG044404 · NIA · UNIVERSITY OF MISSOURI-COLUMBIA · PI LEE, JAMES C · 2014 to 2024
$3.5M
Effects of oxidative stress on glial cell membranesR21NS052385 · NINDS · UNIVERSITY OF MISSOURI-COLUMBIA · PI LEE, JAMES C · 2007 to 2008
$344k
Amyloid-B peptide on endothelial adhesion and its related cellular pathwaysR21AG032579 · NIA · UNIVERSITY OF MISSOURI-COLUMBIA · PI LEE, JAMES C · 2009 to 2010
$340k
NIA NIH HHS 1P01 AG18357NIA NIH HHS P01 AG018357NIA NIH HHS R01 AG044404NIA NIH HHS R21 AG032579NIA NIH HHS R21AG032579NINDS NIH HHS R21 NS052385NINDS NIH HHS R21NS052385
6 · The paper itself

Abstract

Blood-brain barrier (BBB) dysfunctions have been implicated in the progression of Alzheimer's disease. Cerebral endothelial cells (CECs) and astrocytes are the main cell components of the BBB. Although amyloid-β oligomers (Aβ₄₂) have been reported to mediate oxidative damage to the CECs and astrocytes and trigger the downstream mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathway, the cell surface binding site for Aβ₄₂ and exact sequence of these events have yet to be elucidated. In this study, the receptor for advanced glycation endproducts (RAGE) was postulated to function as a signal transducing cell surface receptor for Aβ₄₂ to induce reactive oxygen species (ROS) generation from NADPH oxidase and trigger downstream pathways for the phosphorylation of extracellular signal-regulated kinases (ERK1/2) and cytosolic phospholipase A₂ (cPLA₂). We found that Aβ₄₂ competed with the anti-RAGE antibody (Ab(RAGE)) to bind to RAGE on the surfaces of CECs and primary astrocytes. In addition, Ab(RAGE) abrogate Aβ₄₂-induced ROS production and the colocalization between the cytosolic (p47-phox) and membrane (gp91-phox) subunits of NADPH oxidase in both cell types. Ab(RAGE) as well as NADPH oxidase inhibitor and ROS scavenger suppressed Aβ₄₂-induced ERK1/2 and cPLA₂ phosphorylation in CECs. At the same time, only Ab(RAGE), but neither NADPH oxidase inhibitor nor ROS scavenger, inhibited the ERK1/2 pathway and cPLA₂ phosphorylation in primary astrocytes. Therefore, this study demonstrates that NADPH oxidase complex assembly and ROS production are not required for Aβ₄₂ binding to RAGE at astrocytic surface leading to sequential phosphorylation of ERK1/2 and cPLA₂, and suggests the presence of two different RAGE-dependent downstream pathways in the CECs and astrocytes.

Indexed as

Amyloid beta-PeptidesAnimalsAstrocytesBlood-Brain BarrierBlotting, WesternBrainCell LineEndothelial CellsEnzyme ActivationFluorescent Antibody TechniqueMiceMicroscopy, ConfocalMicroscopy, FluorescenceNADPH OxidasesOxidative StressPhospholipases A2, CytosolicAmyloid beta-PeptidesNADPH OxidasesPhospholipases A2, CytosolicReactive Oxygen SpeciesReceptor for Advanced Glycation End ProductsReceptors, Immunologic

Identifiers

PMID21978883
PMCPMC3237818
OpenAlexW2076632992

What OpenQuestion holds

Textmetadata
LicenceTDM
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.