Cited by 69Neuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatmentsRedox biology and oxidative stress

Nox2 dependent redox-regulation of microglial response to amyloid-β stimulation and microgliosis in aging

Open access
Geng, Li, Fan, Lampson M., Liu, Fangfei, Smith, Colin, Li, Jian -Mei·2020·Scientific Reports

Abstract

Abstract Microglia express constitutively a Nox2 enzyme that is involved in neuroinflammation by the generation of reactive oxygen species (ROS). Amyloid β (Aβ) plays a crucial role in Alzheimer’s disease. However, the mechanism of Aβ-induced microglial dysfunction and redox-regulation of microgliosis in aging remains unclear. In this study, we examined Nox2-derived ROS in mediating microglial response to Aβ peptide 1–42 (Aβ42) stimulation in vitro, in aging-associated microgliosis in vivo and in post-mortem human samples. Compared to controls, Aβ42 markedly induced BV2 cell ROS production, Nox2 expression, p47phox and ERK1/2 phosphorylation, cell proliferation and IL-1β secretion. All these changes could be inhibited to the control levels in the presence of Nox2 inhibitor or superoxide scavenger. Compared to young (3–4 months) controls, midbrain tissues from wild-type aging mice (20–22 months) had significantly higher levels of Nox2-derived ROS production, Aβ deposition, microgliosis and IL-1β production. However, these aging-related changes were reduced or absent in Nox2 knockout aging mice. Clinical significance of aging-associated Nox2 activation, microgliosis and IL-1β production was investigated using post-mortem midbrain tissues of humans at young (25–38 years) and old age (61–85 years). In conclusion, Nox2-dependent redox-signalling is crucial in microglial response to Aβ42 stimulation and in aging-associated microgliosis and brain inflammation.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41598-020-58422-8

Cites

31 of 31 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Geng, L., Fan, L. M., Liu, F., Smith, C., & Li, J. M.
Affiliations
  • University of Surrey (GB)
  • University of Oxford (GB)
  • University of Reading (GB)
  • University of Edinburgh (GB)
Corresponding author
Li, Jian -Mei
Venue
Scientific Reports
Published
2020-01-31
Volume
10
Issue
1
Pages
1582-1582
ISSN
2045-2322 (ISSN-L)
OpenAlex
W3003640680
Cited by
69
References
31
Citations by year
2026: 8 · 2025: 13 · 2024: 13 · 2023: 9 · 2022: 10 · 2021: 11 · 2020: 5
FWCI
3.37
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (acceptedVersion, cc-by)
  • CentAUR (University of Reading) (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Medical Research Council (MR/L016400/1)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
NOX2, NADPH oxidase, reactive oxygen species, microglia, amyloid-beta 42, microglial activation, aging, Alzheimer's disease, neuroinflammation, IL-1β, ERK1/2 phosphorylation, p47phox, redox signaling, BV-2 cells, midbrain
MeSH terms
NADPH Oxidase 2, Adult, Aged, Aged, 80 and over, Aging, Animals, Female, Humans, Male, Mice, Inbred C57BL, Microscopy, Fluorescence, Middle Aged, Oxidation-Reduction, Peptide Fragments, Amyloid beta-Peptides, Reactive Oxygen Species, Microglia, Mice, Knockout, Mice

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