Cited by 298Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsGut microbiota and health

Sex-specific effects of microbiome perturbations on cerebral Aβ amyloidosis and microglia phenotypes

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Dodiya, Hemraj B., Kuntz, Thomas, Shaik, Shabana M., Baufeld, Caroline, Leibowitz, Jeffrey, Zhang, Xulun, Gottel, Neil, Zhang, Xiaoqiong +3 more·2019·Journal of Experimental Medicine

Abstract

We demonstrated that an antibiotic cocktail (ABX)-perturbed gut microbiome is associated with reduced amyloid-β (Aβ) plaque pathology and astrogliosis in the male amyloid precursor protein (APP)SWE/presenilin 1 (PS1)ΔE9 transgenic model of Aβ amyloidosis. We now show that in an independent, aggressive APPSWE/PS1L166P (APPPS1-21) mouse model of Aβ amyloidosis, an ABX-perturbed gut microbiome is associated with a reduction in Aβ pathology and alterations in microglial morphology, thus establishing the generality of the phenomenon. Most importantly, these latter alterations occur only in brains of male mice, not in the brains of female mice. Furthermore, ABX treatment lead to alterations in levels of selected microglial expressed transcripts indicative of the “M0” homeostatic state in male but not in female mice. Finally, we found that transplants of fecal microbiota from age-matched APPPS1-21 male mice into ABX-treated APPPS1-21 male restores the gut microbiome and partially restores Aβ pathology and microglial morphology, thus demonstrating a causal role of the microbiome in the modulation of Aβ amyloidosis and microglial physiology in mouse models of Aβ amyloidosis.

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  • Sex-specific differences have been noted, with female AD mouse models showing more pronounced microbiota-driven amyloid deposition and microglial activation compared to males.

    “Moreover, sex-specific differences have been noted, with female AD mouse models showing more pronounced microbiota-driven amyloid deposition and microglial activation compared to males140.”

    From Artificial intelligence-driven multi-omics approaches in Alzheimer's disease: Progress, challenges, and future directions (2025) · cites this paper as [140]

    The Results section (‘Longer-term ABX treatment results in reduced Aβ deposition only in male APPPS1-21 mice’; page unavailable) reports that microbiome perturbation reduced amyloid burden in males, not females. The Results section on plaque-localized microglia says females had a phagocytic phenotype, but it was independent of antibiotic treatment; microglial morphology changed with treatment in males. The paper therefore does not find a more pronounced microbiota-driven response in females. (LLM, conf=0.91)

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  • Transplants of fecal microbiota of genotype- and age-matched male mice partially restored Aβ pathology and microglial morphology.

    “and transplants of fecal microbiota of genotype- and age-matched male mice partially restored Aβ pathology and microglial morphology9.”
  • These data are consistent with the association of microbiome perturbations induced by antibiotics with neuropathological measures in male mice overexpressing hAPP with the Swedish mutation and presenilin 1, and the ability of transplants of fecal microbiota of genotype- and age-matched male mice to partially restore neuropathology.

    “These data are consistent with the association of microbiome perturbations induced by antibiotics with neuropathological measures in male mice overexpressing hAPP with the Swedish mutation and presenilin 1, and the ability of transplants of fecal microbiota of genotype- and age-matched male mice to partially restore neuropathology9.”
  • The AD pathologies in antibiotic-treated male mice were partially restored after 3-week FMT from age-matched male APP/PS1-21 mice.

    “Importantly, the AD pathologies in antibiotic-treated male mice were partially restored after 3-week FMT from age-matched male APP/PS1-21 mice.197”

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Authors
Dodiya, H. B., Kuntz, T., Shaik, S. M., Baufeld, C., Leibowitz, J., Zhang, X., Gottel, N., Zhang, X., Butovsky, O., Gilbert, J. A., & Sisodia, S. S.
Affiliations
  • University of Chicago (US)
  • Brigham and Women's Hospital (US)
  • Scripps Institution of Oceanography (US)
Corresponding author
Sisodia, Sangram S.
Venue
Journal of Experimental Medicine
Published
2019-05-16
Volume
216
Issue
7
Pages
1542-1560
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2945327298
Cited by
288
References
71
Citations by year
2026: 19 · 2025: 50 · 2024: 54 · 2023: 45 · 2022: 40 · 2021: 39 · 2020: 33 · 2019: 7 · 2018: 1
FWCI
20.40
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc-sa)
Funders
  • Cure Alzheimer’s Fund
  • Open Philanthropy Project and Good Ventures Foundation
  • Edward H. Levi Fund
  • National Institute of Neurological Disorders and Stroke (1R01NS088137, R21NS104609, R21NS101673)
  • National Institute on Aging (R01AG051812, R01AG054672)
  • National Multiple Sclerosis Society
  • Amyotrophic Lateral Sclerosis Association
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
gut microbiota, Alzheimer's disease, microglia, sex differences, antibiotic perturbation, fecal microbiota transplantation, astrocyte activation, neuroinflammation
MeSH terms
Gastrointestinal Microbiome, Fecal Microbiota Transplantation, Animals, Anti-Bacterial Agents, Brain Diseases, Disease Models, Animal, Female, Male, Sex Factors, Amyloid beta-Protein Precursor, Microglia, Amyloid Neuropathies, Mice, Plaque, Amyloid

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