Cited by 235Barrier Structure and Function StudiesGut microbiota and healthGastrointestinal motility and disorders

Gut reactions: how the blood-brain barrier connects the microbiome and the brain

Open access
Logsdon, Aric F, Erickson, Michelle A, Rhea, Elizabeth M, Salameh, Therese S, Banks, William A·2018·Experimental Biology and Medicine

Abstract

A growing body of evidence indicates that the microbiome interacts with the central nervous system (CNS) and can regulate many of its functions. One mechanism for this interaction is at the level of the blood-brain barriers (BBBs). In this minireview, we examine the several ways the microbiome is known to interact with the CNS barriers. Bacteria can directly release factors into the systemic circulation or can translocate into blood. Once in the blood, the microbiome and its factors can alter peripheral immune cells to promote interactions with the BBB and ultimately with other elements of the neurovascular unit. Bacteria and their factors or cytokines and other immune-active substances released from peripheral sites under the influence of the microbiome can cross the BBB, alter BBB integrity, change BBB transport rates, or induce release of neuroimmune substances from the barrier cells. Metabolic products produced by the microbiome, such as short-chain fatty acids, can cross the BBB to affect brain function. Through these and other mechanisms, microbiome-BBB interactions can influence the course of diseases as illustrated by multiple sclerosis. Impact statement The connection between the gut microbiome and central nervous system (CNS) disease is not fully understood. Host immune systems are influenced by changes to the microbiota and offers new treatment strategies for CNS disease. Preclinical studies provide evidence of changes to the blood-brain barrier when animals are subject to experimental gut infection or when the animals lack a normal gut microbiome. The intestine also contains a barrier, and bacterial factors can translocate to the blood and interact with host immune cells. These metastatic bacterial factors can signal T-cells to become more CNS penetrant, thus providing a novel intervention for treating CNS disease. Studies in humans show the therapeutic effects of T-cell engineering for the treatment of leukemia, so perhaps a similar approach for CNS disease could prove effective. Future research should begin to define the bacterial species that can cause immune cells to differentiate and how these interactions vary amongst CNS disease models.

Integrity signals

Registry

Crossref · 10.1177/1535370217743766

Cites

86 of 86 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • Injury, infections, and autoimmune diseases can influence the permeability of the gut and BBB.

    “Injury, infections and autoimmune diseases can influence the permeability of the gut and BBB (262).”
  • Microbial products, cytokines, and other immune molecules released under the influence of the GM may influence BBB integrity, alter BBB transport rates, and promote release of neuroimmune molecules from BBB cells.

    “microbial products, cytokines, and other immune molecules released under the influence of the GM may further influence the BBB’s integrity, alter BBB transport rates, and promote the release of neuroimmune molecules from the cells of the BBB (262).”
  • Microbes and microbial products gain access to the circulation and may gain easier access to the CNS.

    “Microbes and microbial products then gain access to the circulation and may gain easier access to the CNS (262).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Logsdon, A. F., Erickson, M. A., Rhea, E. M., Salameh, T. S., & Banks, W. A.
Affiliations
University of Washington (US)
Corresponding author
Banks, William A
Venue
Experimental Biology and Medicine
Published
2017-11-23
Volume
243
Issue
2
Pages
159-165
ISSN
  • 0071-3384 (ISSN-L)
  • 1535-3702
  • 1535-3699
OpenAlex
W2770436975
Cited by
235
References
86
Citations by year
2026: 20 · 2025: 25 · 2024: 25 · 2023: 40 · 2022: 39 · 2021: 40 · 2020: 25 · 2019: 12 · 2018: 9
FWCI
6.27
Type
journal article
Language
en
Open access
Locations
  • Experimental Biology and Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (R01AG046619)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
gut microbiota, blood-brain barrier, neuroimmune interactions, bacterial translocation, short-chain fatty acids, multiple sclerosis, neurovascular unit, T cell differentiation, central nervous system disorders, intestinal barrier, peripheral immune cells
MeSH terms
Gastrointestinal Microbiome, Animals, Bacteria, Biological Products, Blood-Brain Barrier, Central Nervous System, Humans, Bacterial Translocation, Gastrointestinal Tract

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