Cited by 741Liver Disease Diagnosis and TreatmentLiver physiology and pathologyImmune Response and Inflammation

Toll-Like Receptor 9 Promotes Steatohepatitis by Induction of Interleukin-1β in Mice

Open access
Miura, Kouichi, Kodama, Yuzo, Inokuchi, Sayaka, Schnabl, Bernd, Aoyama, Tomonori, Ohnishi, Hirohide, Olefsky, Jerrold M., Brenner, David A. +1 more·2010·Gastroenterology

Abstract

Background & aims Development of nonalcoholic steatohepatitis (NASH) involves the innate immune system and is mediated by Kupffer cells and hepatic stellate cells (HSCs). Toll-like receptor 9 (TLR9) is a pattern recognition receptor that recognizes bacteria-derived cytosine phosphate guanine (CpG)-containing DNA and activates innate immunity. We investigated the role of TLR9 signaling and the inflammatory cytokine interleukin-1beta (IL-1beta) in steatohepatitis, fibrosis, and insulin resistance.Methods Wild-type (WT), TLR9(-/-), IL-1 receptor (IL-1R)(-/-), and MyD88(-/-) mice were fed a choline-deficient amino acid-defined (CDAA) diet for 22 weeks and then assessed for steatohepatitis, fibrosis, and insulin resistance. Lipid accumulation and cell death were assessed in isolated hepatocytes. Kupffer cells and HSCs were isolated to assess inflammatory and fibrogenic responses, respectively.Results The CDAA diet induced NASH in WT mice, characterized by steatosis, inflammation, fibrosis, and insulin resistance. TLR9(-/-) mice showed less steatohepatitis and liver fibrosis than WT mice. Among inflammatory cytokines, IL-1beta production was suppressed in TLR9(-/-) mice. Kupffer cells produced IL-1beta in response to CpG oligodeoxynucleotide. IL-1beta but not CpG-oligodeoxynucleotides, increased lipid accumulation in hepatocytes. Lipid accumulation in hepatocytes led to nuclear factor-kappaB inactivation, resulting in cell death in response to IL-1beta. IL-1beta induced fibrogenic responses in HSCs, including secretion of tissue inhibitor of metalloproteinase-1. IL-1R(-/-) mice had reduced steatohepatitis and fibrosis, compared with WT mice. Mice deficient in MyD88, an adaptor molecule for TLR9 and IL-1R signaling, also had reduced steatohepatitis and fibrosis. TLR9(-/-), IL-1R(-/-), and MyD88(-/-) mice had less insulin resistance than WT mice on the CDAA diet.Conclusions In a mouse model of NASH, TLR9 signaling induces production of IL-1beta by Kupffer cells, leading to steatosis, inflammation, and fibrosis.

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 · 10.1053/j.gastro.2010.03.052

Cites

55 of 55 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?

  • Similar results indicating a pathogenetic role of TLR have been obtained for TLR9 using the choline-deficient L-amino acid-defined diet model of NASH.

    “Similar results indicating a pathogenetic role of TLR have been obtained also for TLR9 using the choline-deficient L-amino acid-defined diet model of NASH [283].”

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
Miura, K., Kodama, Y., Inokuchi, S., Schnabl, B., Aoyama, T., Ohnishi, H., Olefsky, J. M., Brenner, D. A., & Seki, E.
Affiliations
  • Akita University (JP)
  • University of California San Diego (US)
Corresponding author
  • Miura, Kouichi
  • Seki, Ekihiro
Venue
Gastroenterology
Publisher
Elsevier BV
Published
2010-07
Volume
139
Issue
1
Pages
323-334.e7
ISSN
0016-5085 (ISSN-L)
OpenAlex
W2106549878
Cited by
741
References
55
Citations by year
2026: 22 · 2025: 29 · 2024: 47 · 2023: 36 · 2022: 50 · 2021: 53 · 2020: 69 · 2019: 61 · 2018: 56 · 2017: 48 · 2016: 44 · 2015: 63 · 2014: 48 · 2013: 50 · 2012: 27
FWCI
26.61
Type
journal article
Language
en
Open access
Locations
  • Gastroenterology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Association for the Study of Liver Diseases
  • National Institute on Alcohol Abuse and Alcoholism
  • National Institutes of Health (5R01DK072237, 5R01GM041804)
  • Takeda Science Foundation
Topics
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
TLR9, nonalcoholic steatohepatitis, IL-1β, Kupffer cells, hepatic stellate cells, liver fibrosis, insulin resistance, innate immunity, MyD88, IL-1 receptor, CpG oligodeoxynucleotides, hepatocyte lipid accumulation, hepatocyte death, NF-κB
MeSH terms
Animals, Choline Deficiency, Fatty Liver, Insulin Resistance, Kupffer Cells, Liver Cirrhosis, Experimental, Male, Mice, Inbred C57BL, RNA, Messenger, Signal Transduction, Lipid Metabolism, Toll-Like Receptor 9, Mice, Interleukin-1beta, Myeloid Differentiation Factor 88, Hepatic Stellate Cells

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