Cited by 40Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsBarrier Structure and Function Studies

Pro-inflammatory effect of freshly solubilized β-amyloid peptides in the brain

Paris, Daniel, Townsend, Kirk P, Obregon, Demian F, Humphrey, James, Mullan, Michael·2002·Prostaglandins & Other Lipid Mediators

Abstract

It has recently been shown that the level of soluble beta-amyloid (Abeta) peptides correlates well with the severity of synaptic loss and the density of neurofibrillary tangles observed in Alzheimer's disease (AD) brain. However, the biological activity of soluble forms of Abeta peptides in the brain remains to be determined. We have investigated ex vivo the effect of freshly solubilized Abeta1-40 peptides (fsAbeta) on prostaglandin E2 (PGE2) production in rat brain slices. PGE2 levels increased rapidly following treatment with fsAbeta, an effect that was prevented by SB202190, a selective inhibitor of p38 mitogen-activated protein kinase (p38 MAPK), and by NS-398, which preferentially inhibits cyclooxygenase-2 (COX-2) compared to COX-1. In an attempt to determine the cellular systems of the brain responsible for prostaglandin production in response to fsAbeta, the effect of fsAbeta was tested on isolated brain microvessels, primary cultures of brain smooth muscle cells/pericytes and endothelial cells, and a human neuron-like cell line (IMR32). Our data show that fsAbeta ex vivo can stimulate prostaglandin accumulation in incubates of isolated rat brain microvessels. In addition, fsAbeta appears to cause a concentration-dependent enhancement of prostaglandin accumulation in primary cultures of brain microvessel-derived smooth muscle cells/pericytes but not of brain endothelial cells. Finally, fsAbeta also stimulated PGF2alpha accumulation in cultures of differentiated IMR32 cells, but to a lesser extent than in brain smooth muscle cell/pericyte cultures. Deposition of aggregated forms of Abeta in the brain has been thought to trigger an inflammatory response which accompanies the neuropathologic events of AD. Our data provide evidence that fsAbeta triggers a pro-inflammatory reaction in rat brain, and suggest that the cerebrovasculature may constitute an important source of pro-inflammatory eicosanoids.

Integrity signals

Registry

Crossref · 10.1016/s0090-6980(02)00111-9

Cites

41 of 41 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Pericytes are an important source of pro-inflammatory eicosanoids after activation by Aβ.

    “In addition, pericytes are also suggested to be an important source of pro-inflammatory eicosanoids after being activated by Aβ.500”

    From Role of neuroinflammation in neurodegeneration development (2023) · cites this paper as [500]

Cites

Flagged first, then by citations

1 of the 42 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Paris, D., Townsend, K. P., Obregon, D. F., Humphrey, J., & Mullan, M.
Affiliations
University of South Florida (US)
Corresponding author
Paris, Daniel
Venue
Prostaglandins & Other Lipid Mediators
Publisher
Elsevier BV
Published
2002-09
Volume
70
Issue
1-2
Pages
1-12
ISSN
1098-8823 (ISSN-L)
OpenAlex
W1992280830
Cited by
40
References
42
Citations by year
2024: 1 · 2023: 2 · 2022: 1 · 2020: 3 · 2019: 2 · 2018: 1 · 2017: 3 · 2016: 1 · 2014: 1 · 2012: 5
FWCI
1.80
Type
journal article
Language
en
Open access
closed
Locations
  • Prostaglandins & Other Lipid Mediators (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (R01AG019250, AG19250-01)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
Aβ40, Alzheimer's disease, pro-inflammatory effects, prostaglandin E2, prostaglandin F2alpha, p38 MAPK, cyclooxygenase-2, cerebral microvasculature, pericytes, smooth muscle cells, endothelial cells, cerebrovascular inflammation, eicosanoids, neuroinflammation
MeSH terms
Alzheimer Disease, Animals, Brain, Cattle, Cells, Cultured, Humans, Inflammation, Isoenzymes, Male, Membrane Proteins, Nitrobenzenes, Prostaglandin-Endoperoxide Synthases, Solubility, Sulfonamides, Dinoprostone, Amyloid beta-Peptides, Inflammation Mediators, Mitogen-Activated Protein Kinases, Myocytes, Smooth Muscle, p38 Mitogen-Activated Protein Kinases, Rats, Cyclooxygenase 2, In Vitro Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review