Cited by 71T-cell and B-cell ImmunologyLiver physiology and pathologyTransplantation: Methods and Outcomes

Mechanistic insights into immunomodulation by hepatic stellate cells in mice: A critical role of interferon‐γ signaling†

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Yang, Horng‐Ren, Chou, Hong‐Shuie, Gu, Xiaodong, Wang, Lianfu, Brown, Kathleen E., Fung, John J., Lu, Lina, Qian, Shiguang·2009·Hepatology

Abstract

UNLABELLED: The liver is considered to be an immune-privileged organ that favors the induction of tolerance. The underlying mechanisms are not completely understood. Interestingly, liver transplants are spontaneously accepted in several animal models, but hepatocyte transplants are acutely rejected, suggesting that liver nonparenchymal cells may effectively protect the parenchymal cells from immune attack. We have shown the profound T cell inhibitory activity of hepatic stellate cells (HSCs). Thus, cotransplantation with HSCs effectively protects islet allografts from rejection in mice. In this study, using T cell receptor transgenic and gene knockout approaches, we provided definitive evidence that HSCs protected cotransplanted islet allografts by exerting comprehensive inhibitory effects on T cells, including apoptotic death in graft-infiltrating antigen-specific effector T cells and marked expansion of CD4(+) Forkhead box protein (Foxp)3(+) T regulatory (Treg) cells. All these effects required an intact interferon-gamma (IFN-gamma) signaling in HSCs, demonstrated by using HSCs isolated from IFN-gamma receptor 1 knockout mice. B7-H1 expression on HSCs, a product molecule of IFN-gamma signaling, was responsible for induction of T cells apoptosis, but had no effect on expansion of Treg cells, suggesting that undetermined effector molecules produced by IFN-gamma signaling is involved in this process. CONCLUSION: Upon inflammatory stimulation, specific organ stromal cells (such as HSCs in the liver) demonstrate potent immune regulatory activity. Understanding of the mechanisms involved may lead to development of novel strategies for clinical applications in transplantation and autoimmune diseases.

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Crossref · 10.1002/hep.23202

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  • A sizeable proportion, between 23% and 48%, of patients with MASLD and/or MASH were found to exhibit signs of AIH and/or PBC, including interface hepatitis and generation of anti-nuclear or anti-mitochondrial antibodies.

    “In the small number of investigations performed, a sizeable proportion (between 23% and 48%) of patients with MASLD and/or MASH were found to exhibit signs of AIH and/or PBC, including interface hepatitis and generation of anti-nuclear (ANA) or anti-mitochondrial (AMA) antibodies (38-40).”

    From The liver as a central "hub" of the immune system: pathophysiological implications (2025) · cites this paper as [38]

    The Introduction and Results describe hepatic stellate cells and islet allografts in mice, not patients with MASLD or MASH. Searches for the 23%–48% range, interface hepatitis, AIH/PBC, and ANA/AMA found no passage addressing the claimed patient findings. The cited paper therefore does not verify this claim. (LLM, conf=0.78)

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Research works printed but not linked: 2

  1. [13]Mele TS Kneteman NM Zhu LF IFN-γ is an absolute requirement for spontaneous acceptance of liver allografts Am J Transplant 2003 3 942 951 12859528
  2. [15]Zheng SG Wang J Wang P Gray JD Horwitz DA IL-2 is essential for TGF-β to convert naive CD4+ Cells. J Immunol 2007 178 2018 2027 17277105

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Authors
Yang, H., Chou, H., Gu, X., Wang, L., Brown, K. E., Fung, J. J., Lu, L., & Qian, S.
Affiliations
  • Cleveland Clinic (US)
  • Cleveland Clinic Research (US)
Corresponding author
Qian, Shiguang
Venue
Hepatology
Published
2009-12
Volume
50
Issue
6
Pages
1981-1991
ISSN
0270-9139 (ISSN-L)
OpenAlex
W1985569603
Cited by
71
References
31
Citations by year
2025: 1 · 2024: 2 · 2023: 3 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 5 · 2018: 4 · 2017: 2 · 2016: 5 · 2015: 9 · 2014: 11 · 2013: 6 · 2012: 5
FWCI
2.30
Type
journal article
Language
en
Open access
Locations
  • Hepatology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK084192, R01DK058316, DK58316)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Surgery › Transplantation: Methods and Outcomes
Keywords
hepatic stellate cells, immunomodulation, islet allograft rejection, T cell apoptosis, regulatory T cells, Foxp3, interferon-gamma signaling, PD-L1, liver transplantation, immune privilege, T cell tolerance
MeSH terms
Interferon gamma Receptor, Animals, Interferon-gamma, Male, Membrane Glycoproteins, Mice, Inbred Strains, Peptides, Signal Transduction, Islets of Langerhans Transplantation, Apoptosis, Receptors, Interferon, B7-1 Antigen, CD8-Positive T-Lymphocytes, T-Lymphocytes, Regulatory, Mice, Forkhead Transcription Factors, Hepatic Stellate Cells, B7-H1 Antigen

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