Cited by 1,066Gut microbiota and healthGastrointestinal motility and disordersImmune Response and Inflammation

Symbiotic bacterial metabolites regulate gastrointestinal barrier function via the xenobiotic sensor PXR and Toll-like receptor 4

Open access
Venkatesh, Madhukumar, Mukherjee, Subhajit, Wang, Hongwei, Li, Hao, Sun, Katherine, Benechet, Alexandre P., Qiu, Zhijuan, Maher, Leigh +11 more·2014·Immunity

Abstract

Intestinal microbial metabolites are conjectured to affect mucosal integrity through an incompletely characterized mechanism. Here we showed that microbial-specific indoles regulated intestinal barrier function through the xenobiotic sensor, pregnane X receptor (PXR). Indole 3-propionic acid (IPA), in the context of indole, is a ligand for PXR in vivo, and IPA downregulated enterocyte TNF-α while it upregulated junctional protein-coding mRNAs. PXR-deficient (Nr1i2(-/-)) mice showed a distinctly "leaky" gut physiology coupled with upregulation of the Toll-like receptor (TLR) signaling pathway. These defects in the epithelial barrier were corrected in Nr1i2(-/-)Tlr4(-/-) mice. Our results demonstrate that a direct chemical communication between the intestinal symbionts and PXR regulates mucosal integrity through a pathway that involves luminal sensing and signaling by TLR4.

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 · 10.1016/j.immuni.2014.06.014

Cites

50 of 50 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?

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
Venkatesh, M., Mukherjee, S., Wang, H., Li, H., Sun, K., Benechet, A. P., Qiu, Z., Maher, L., Redinbo, M. R., Phillips, R. S., Fleet, J. C., Kortagere, S., Mukherjee, P., Fasano, A., Le Ven, J., Nicholson, J. K., Dumas, M. E., Khanna, K. M., & Mani, S.
Affiliations
  • Albert Einstein College of Medicine (US)
  • Montefiore Medical Center (US)
  • UConn Health (US)
  • University of North Carolina at Chapel Hill (US)
  • University of Georgia (US)
  • Purdue University West Lafayette (US)
  • Drexel University (US)
  • Harvard University (US)
  • Imperial College London (GB)
Corresponding author
  • Khanna, Kamal M.
  • Mani, Sridhar
Venue
Immunity
Publisher
Elsevier BV
Published
2014-08
Volume
41
Issue
2
Pages
296-310
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2073714219
Cited by
1,066
References
50
Citations by year
2026: 130 · 2025: 110 · 2024: 130 · 2023: 101 · 2022: 123 · 2021: 137 · 2020: 103 · 2019: 67 · 2018: 52 · 2017: 41 · 2016: 43 · 2015: 21 · 2014: 6
FWCI
15.16
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • Damon Runyon Cancer Research Foundation
  • University of Connecticut
  • University of Pittsburgh
  • European Commission (305312)
  • National Institutes of Health
  • National Cancer Institute (CA161879, CA 127231, R01CA161879, R01CA127231, P30CA013330)
  • National Institute of Allergy and Infectious Diseases (R01AI097375, AI097375)
  • FP7 Health (305312)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
indole-3-propionic acid, pregnane X receptor, TLR4, intestinal barrier function, intestinal permeability, mucosal integrity, tight junction proteins
MeSH terms
Pregnane X Receptor, Animals, Anti-Inflammatory Agents, Non-Steroidal, Antibodies, Cell Line, Female, Humans, Indoles, Indomethacin, Inflammation, Intestines, Lipopolysaccharides, Mice, Inbred C57BL, Receptors, Steroid, RNA, Messenger, Tumor Necrosis Factor-alpha, Signal Transduction, Reperfusion Injury, CD3 Complex, Caco-2 Cells, Tight Junctions, Adherens Junctions, RNA Interference, RNA, Small Interfering, Toll-Like Receptor 4, Mice, HEK293 Cells, Microbiota

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