Cited by 332Neuroinflammation and Neurodegeneration MechanismsTryptophan and brain disordersTraumatic Brain Injury and Neurovascular Disturbances

TGFβ produced by IL‐10 redirected astrocytes attenuates microglial activation

Open access
Norden, Diana M., Fenn, Ashley M., Dugan, Allison, Godbout, Jonathan P.·2014·Glia

Abstract

While there clearly is an intimate relationship between astrocytes and microglia, few studies have examined these potentially dynamic interactions. In this study, cytokine‐mediated communication between microglia and astrocytes under inflammatory conditions was investigated. We have previously shown that activated microglia produce Interleukin (IL)‐10, a regulatory cytokine that plays an important role in resolving neuroinflammation. Nonetheless, the mechanism by which IL‐10 attenuates pro‐inflammatory cytokine expression in the brain is unclear. Here, we show that IL‐10 redirected astrocytes regulate the activation of microglia in a transforming growth factor (TGF)‐β dependent manner. In support of this concept, astrocytes in the brain maintained higher IL‐10 receptor (IL‐10R1) expression and primary astrocytes in culture were markedly more sensitive to the anti‐inflammatory effects of IL‐10 compared with microglia. Moreover, studies using primary cultures and an astrocyte‐microglia coculture system revealed that astrocytes mediated the anti‐inflammatory effects of IL‐10 on microglia through the production of TGFβ. For instance, only when astrocytes were present did IL‐10 stimulation reduce the expression of IL‐1β and increase expression of anti‐inflammatory mediators fractalkine receptor (CX 3 CR1) and interleukin 4 receptor‐α (IL‐4Rα) in microglia. Importantly, these IL‐10‐astrocyte dependent effects on microglia were blocked by a TGFβ inhibitor. Furthermore, inhibition of TGFβ signaling in the brain resulted in prolonged sickness behavior and amplified pro‐inflammatory cytokine expression in mice challenged with lipopolysaccharide. Taken together, IL‐10 stimulated the production of TGFβ by astrocytes, which in turn, attenuated microglial activation. Overall, these findings provide novel insight into the mechanisms by which astrocytes modulate microglia under inflammatory conditions. GLIA 2014;62:881–895

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 · 10.1002/glia.22647

Cites

54 of 54 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?

  • Microglial IL-10 binds to astrocytes that modulate microglial inflammatory signaling in a transforming growth factor (TGF)-β-dependent manner.

    “A recent study showed that microglial IL-10 binds to astrocytes that modulate microglial inflammatory signaling in a transforming growth factor (TGF)-β-dependent manner (Norden et al, 2014).”

    From Microglia Priming with Aging and Stress (2017) · cites this paper as Norden et al, 2014

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
Norden, D. M., Fenn, A. M., Dugan, A., & Godbout, J. P.
Affiliations
The Ohio State University (US)
Corresponding author
Godbout, Jonathan P.
Venue
Glia
Publisher
Wiley
Published
2014-02-25
Volume
62
Issue
6
Pages
881-895
ISSN
  • 0894-1491 (ISSN-L)
  • 1098-1136
OpenAlex
W1568207206
Cited by
332
References
54
Citations by year
2026: 28 · 2025: 38 · 2024: 33 · 2023: 48 · 2022: 23 · 2021: 29 · 2020: 29 · 2019: 23 · 2018: 28 · 2017: 11 · 2016: 17 · 2015: 16 · 2014: 9
FWCI
9.20
Type
journal article
Language
en
Open access
Locations
  • Glia (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute on Aging (R01AG033028)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
Keywords
IL-10, TGF-beta, astrocytes, microglial activation, astrocyte-microglia interaction, neuroinflammation, IL-10 receptor, IL-1β, CX3CR1, IL-4 receptor alpha, sickness behavior, lipopolysaccharide, anti-inflammatory signaling
MeSH terms
Animals, Animals, Newborn, Astrocytes, Cells, Cultured, Mice, Inbred BALB C, Transforming Growth Factor beta, Interleukin-10, Microglia, Coculture Techniques, 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