Cited by 639Drug Transport and Resistance MechanismsLiver physiology and pathologyNF-κB Signaling Pathways

Farnesoid X receptor antagonizes nuclear factor κB in hepatic inflammatory response

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Wang, Yan-Dong, Chen, Wei-Dong, Wang, Meihua, Yu, Donna, Forman, Barry M., Huang, Wendong·2008·Hepatology

Abstract

The farnesoid X receptor (FXR) is a nuclear receptor that plays key roles in hepatoprotection by maintaining the homeostasis of liver metabolism. FXR null mice display strong hepatic inflammation and develop spontaneous liver tumors. In this report, we demonstrate that FXR is a negative modulator of nuclear factor κB (NF-κB)–mediated hepatic inflammation. Activation of FXR by its agonist ligands inhibited the expression of inflammatory mediators in response to NF-κB activation in both HepG2 cells and primary hepatocytes cultured in vitro . In vivo , compared with wild-type controls, FXR−/− mice displayed elevated messenger RNA (mRNA) levels of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), interferon-inducible protein 10, and interferon-γ in response to lipopolysaccharide (LPS). Examination of FXR−/− livers showed massive necroses and inflammation after treatment with LPS at a dose that does not induce significant liver damage or inflammation in wild-type mice. Moreover, transfection of a constitutively active FXR expression construct repressed the iNOS, COX-2, interferon-inducible protein 10 and interferon-γ mRNA levels induced by LPS administration. FXR activation had no negative effects on NF-κB-activated antiapoptotic genes, suggesting that FXR selectively inhibits the NF-κB-mediated hepatic inflammatory response but maintains or even enhances the cell survival response. On the other hand, NF-κB activation suppressed FXR-mediated gene expression both in vitro and in vivo , indicating a negative crosstalk between the FXR and NF-κB signaling pathways. Our findings reveal that FXR is a negative mediator of hepatic inflammation, which may contribute to the critical roles of FXR in hepatoprotection and suppression of hepatocarcinogenesis. (Hepatology 2008;48:1632–1643.)

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Crossref · 10.1002/hep.22519

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  • FXR agonists are known to alleviate endoplasmic reticulum stress and suppress oxidative damage by upregulating antioxidant and anti-apoptotic pathways.

    “FXR agonists are known to alleviate endoplasmic reticulum stress and suppress oxidative damage by upregulating antioxidant and anti-apoptotic pathways [42, 43].”

    From High-throughput human microfluidic organoid-on-a-chip platform for modeling liver diseases and screening nanotherapeutics. (2026) · cites this paper as [43]

    The Results section on NF-κB-regulated pro-inflammatory genes reports that FXR agonists reduce inflammatory gene expression, not endoplasmic reticulum stress or oxidative damage. The Results section on anti-apoptosis target genes says FXR activation did not suppress those genes; it does not establish their upregulation. Searches for endoplasmic reticulum stress, oxidative damage, and antioxidant pathways found no passage addressing the claimed mechanism. (LLM, conf=0.75)

    Experimental — accuracy not yet measured
  • Ablation of Fxr promotes cholestasis, NAFLD, NASH and HCC in mice.

    “Ablation of Nr1h4 (hereafter referred to as Fxr) not only promotes cholestasis but also NAFLD, NASH and HCC in mice (Kim et al., 2007; Lu et al., 2000; Wang et al., 2008; Watanabe et al., 2004; Yang et al., 2007).”

    From Circadian Homeostasis of Liver Metabolism Suppresses Hepatocarcinogenesis (2016) · cites this paper as Wang et al., 2008

  • Nuclear receptors are able to mediate anti-inflammatory effects through direct interaction with other transcription factors such as NF-κB or AP-1, and can repress proinflammatory gene expression by interfering with TLR signaling.

    “Next to their extensive effect on cell metabolism, they are able to mediate anti-inflammatory effects through direct interaction with other transcription factors, such as NF-κB or activator protein-1 (AP-1) [26,27], and even repress proinflammatory gene expression by interfering with TLR signaling.[28]”

    From Nuclear receptors in liver fibrosis (2021) · cites this paper as [27]

  • FXR interacts with NF-κB signaling and inhibits pro-inflammatory genes such as TNF-α, iNOS, COX-2, CCL-2 and IL-1β, while NF-κB activation reciprocally antagonizes FXR activity.

    “In brief, FXR interacts with NF-κB signaling and inhibits pro-inflammatory genes (e.g., TNF-α, inducible nitric oxide synthase (iNOS), Cyclooxygeanse-2 (COX-2), CCL-2 and IL-1β)), while NF-κB activation reciprocally antagonizes FXR activity.[27,52,53]”

    From Nuclear receptors in liver fibrosis (2021) · cites this paper as [27]

  • FXR -/- mice were more susceptible to inflammatory stress, highlighting the anti-inflammatory properties of FXR.

    “Additionally, FXR -/-mice were more susceptible to inflammatory stress, highlighting the anti- inflammatory properties of FXR.[27]”

    From Nuclear receptors in liver fibrosis (2021) · cites this paper as [27]

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Authors
Wang, Y.-D., Chen, W.-D., Wang, M., Yu, D., Forman, B. M., & Huang, W.
Affiliations
City Of Hope National Medical Center (US)
Corresponding author
Huang, Wendong
Venue
Hepatology
Published
2008-11
Volume
48
Issue
5
Pages
1632-1643
ISSN
0270-9139 (ISSN-L)
OpenAlex
W2021998283
Cited by
639
References
52
Citations by year
2026: 30 · 2025: 46 · 2024: 44 · 2023: 46 · 2022: 51 · 2021: 54 · 2020: 45 · 2019: 42 · 2018: 31 · 2017: 42 · 2016: 38 · 2015: 29 · 2014: 31 · 2013: 27 · 2012: 27
FWCI
9.67
Type
journal article
Language
en
Open access
Locations
  • Hepatology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Sidney Kimmel Foundation for Cancer Research
  • Sidney Kimmel Foundation
  • National Cancer Institute (P30CA033572)
Topics
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
farnesoid X receptor, nuclear factor-kappaB, liver inflammation, hepatoprotection, lipopolysaccharide, inducible nitric oxide synthase, cyclooxygenase-2, CXCL10, interferon-gamma, liver necrosis, hepatocarcinogenesis, anti-apoptotic genes
MeSH terms
Receptor, Farnesoid X-Activated, Animals, Cell Line, DNA-Binding Proteins, Homeostasis, Humans, Inflammation, Kidney, Liver, Liver Neoplasms, Necrosis, RNA, Messenger, Transcription Factors, Tumor Necrosis Factor-alpha, NF-kappa B, Receptors, Cytoplasmic and Nuclear, Hepatoblastoma, Mice, Knockout, Cell Line, Tumor, Mice, Cyclooxygenase 2, Nitric Oxide Synthase Type II

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