Cited by 351Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsNeuroscience and Neuropharmacology Research

Inhibition of Stat3‐mediated astrogliosis ameliorates pathology in an Alzheimer's disease model

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Reichenbach, Nicole, Delekate, Andrea, Plescher, Monika, Schmitt, Franziska, Krauss, Sybille, Blank, Nelli, Halle, Annett, Petzold, Gabor C·2019·EMBO Molecular Medicine

Abstract

Reactive astrogliosis is a hallmark of Alzheimer's disease (AD), but its role for disease initiation and progression has remained incompletely understood. We here show that the transcription factor Stat3 (signal transducer and activator of transcription 3), a canonical inducer of astrogliosis, is activated in an AD mouse model and human AD. Therefore, using a conditional knockout approach, we deleted Stat3 specifically in astrocytes in the APP/PS1 model of AD. We found that Stat3‐deficient APP/PS1 mice show decreased β‐amyloid levels and plaque burden. Plaque‐close microglia displayed a more complex morphology, internalized more β‐amyloid, and upregulated amyloid clearance pathways in Stat3‐deficient mice. Moreover, astrocyte‐specific Stat3‐deficient APP/PS1 mice showed decreased pro‐inflammatory cytokine activation and lower dystrophic neurite burden, and were largely protected from cerebral network imbalance. Finally, Stat3 deletion in astrocytes also strongly ameliorated spatial learning and memory decline in APP/PS1 mice. Importantly, these protective effects on network dysfunction and cognition were recapitulated in APP/PS1 mice systemically treated with a preclinical Stat3 inhibitor drug. In summary, our data implicate Stat3‐mediated astrogliosis as an important therapeutic target in AD.

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  1. Justicia C, Gabriel C, Planas AM (2000) Activation of the JAK/STAT pathway following transient focal cerebral ischemia: signaling through Jak1 and Stat3 in astrocytes. Glia 30: 253– 270 10756075

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Authors
Reichenbach, N., Delekate, A., Plescher, M., Schmitt, F., Krauss, S., Blank, N., Halle, A., & Petzold, G. C.
Affiliations
  • German Center for Neurodegenerative Diseases (DE)
  • University Hospital Bonn (DE)
Corresponding author
Petzold, Gabor C
Venue
EMBO Molecular Medicine
Published
2019-01-07
Volume
11
Issue
2
ISSN
  • 1757-4676 (ISSN-L)
  • 1757-4684
OpenAlex
W2907017802
Cited by
343
References
42
Citations by year
2026: 36 · 2025: 50 · 2024: 63 · 2023: 47 · 2022: 54 · 2021: 49 · 2020: 34 · 2019: 9
FWCI
25.02
Type
journal article
Language
en
Open access
Locations
  • EMBO Molecular Medicine (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DZNE Pub (submittedVersion, other-oa)
Funders
  • European Union (EU) Joint Program, Neurodegenerative Disease Research JPND (643417/DACAPO‐AD)
  • Alzheimer Forschung Initiative
  • Deutsches Zentrum für Neurodegenerative Erkrankungen
  • Deutsche Forschungsgemeinschaft (EXC 1023)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
STAT3, astrocyte activation, Alzheimer's disease, APP/PS1 mice, amyloid-beta, amyloid plaques, microglia, amyloid clearance, neuroinflammation, inflammatory cytokines, dystrophic neurites, spatial learning and memory, STAT3 inhibitor, therapeutic target
MeSH terms
Alzheimer Disease, Animals, Astrocytes, Disease Models, Animal, Humans, Mice, Knockout, Cell Proliferation, STAT3 Transcription Factor, Mice, Gene Knockout Techniques

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