Cited by 255Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsGut microbiota and health

ApoE isoform– and microbiota-dependent progression of neurodegeneration in a mouse model of tauopathy

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Seo, Dong-oh, O’Donnell, David, Jain, Nimansha, Ulrich, Jason D., Herz, Jasmin, Li, Yuhao, Lemieux, Mackenzie, Cheng, Jiye +15 more·2023·Science

Abstract

Tau-mediated neurodegeneration is a hallmark of Alzheimer’s disease. Primary tauopathies are characterized by pathological tau accumulation and neuronal and synaptic loss. Apolipoprotein E (ApoE)–mediated neuroinflammation is involved in the progression of tau-mediated neurodegeneration, and emerging evidence suggests that the gut microbiota regulates neuroinflammation in an APOE genotype–dependent manner. However, evidence of a causal link between the microbiota and tau-mediated neurodegeneration is lacking. In this study, we characterized a genetically engineered mouse model of tauopathy expressing human ApoE isoforms reared under germ-free conditions or after perturbation of their gut microbiota with antibiotics. Both of these manipulations reduced gliosis, tau pathology, and neurodegeneration in a sex- and ApoE isoform–dependent manner. The findings reveal mechanistic and translationally relevant interrelationships between the microbiota, neuroinflammation, and tau-mediated neurodegeneration.

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  • Studies on animal models have provided compelling evidence that the altered gut microbiome drives neurodegenerative disease pathogenesis, primarily through the modulation of microglial functions and activation.

    “Moreover, studies on animal models have provided compelling evidence that the altered gut microbiome drives neurodegenerative disease pathogenesis, primarily through the modulation of microglial functions and activation.54–57”
  • The neuroprotective effects of antibiotic treatment were more pronounced in male mice expressing human APOE3 (TE3 mice).

    “Interestingly, they observed sex-dependent and APOE isoform-dependent neuroprotection as the neuroprotective effects of antibiotic treatment were more pronounced in male mice expressing human APOE3 (TE3 mice).56”
  • The neuroprotective effects of gut microbiota depletion are diminished following microbiota restoration and SCFA supplementation.

    “However, the neuroprotective effects of gut microbiota depletion were diminished following microbiota restoration and SCFA supplementation.”
  • Gut microbiota perturbation reduces reactive astrogliosis, promotes a shift in astrocytes toward a more homeostatic-like state, and protects against amyloidosis and tau-mediated neurodegeneration.

    “Gut microbiota perturbation has also been shown to reduce reactive astrogliosis, promote a shift in astrocytes towards a more homeostatic-like state, and protect against amyloidosis and tau-mediated neurodegeneration.”
  • FMT from age-matched control mice restores astrogliosis in antibiotic-treated APP/PS1-21 mice.

    “In particular, FMT from age-matched control mice restored astrogliosis in antibiotic-treated APP/PS1-21 mice, while SCFAs supplementation restored the gliosis and tau pathology in GF TE4 mice.56,61”

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Authors
Seo, D.-O., O’Donnell, D., Jain, N., Ulrich, J. D., Herz, J., Li, Y., Lemieux, M., Cheng, J., Hu, H., Serrano, J. R., Bao, X., Franke, E., Karlsson, M., Meier, M., Deng, S., Desai, C., Dodiya, H., Lelwala-Guruge, J., Handley, S. A., Kipnis, J., Sisodia, S. S., Gordon, J. I., & Holtzman, D. M.
Affiliations
  • Washington University in St. Louis (US)
  • The Edison Family Center for Genome Sciences and Systems Biology and the Center for Gut Microbiome and Nutrition Research, Washington University School of Medicine, St. Louis, MO, USA.
  • University of Chicago (US)
Corresponding author
Holtzman, David M.
Venue
Science
Published
2023-01-13
Volume
379
Issue
6628
Pages
eadd1236-eadd1236
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W4315928364
Cited by
254
References
43
Citations by year
2026: 41 · 2025: 80 · 2024: 74 · 2023: 59
FWCI
45.23
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Good Ventures Foundation
  • National Institutes of Health (NS090934)
  • National Institute on Aging (P30AG066444)
  • National Institute of General Medical Sciences (T32GM007200)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK042086, P30DK056341, R01DK030292)
  • National Institute of Neurological Disorders and Stroke (R01NS090934, RF1NS090934)
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
tauopathy, apolipoprotein E isoforms, gut microbiota, neuroinflammation, neurodegeneration, Alzheimer's disease, germ-free mice, antibiotic perturbation, gliosis, sex differences
MeSH terms
Gastrointestinal Microbiome, Neuroinflammatory Diseases, Animals, Anti-Bacterial Agents, Apolipoproteins E, Disease Models, Animal, Female, Humans, Male, Mice, Transgenic, Sex Factors, tau Proteins, Tauopathies, Mice

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