Cited by 12Liver physiology and pathologyLiver Disease Diagnosis and TreatmentCardiac Fibrosis and Remodeling

Type I IFN receptor blockade alleviates liver fibrosis through macrophage-derived STAT3 signaling

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Park, Soo-Jeung, Garcia Diaz, Josefina, Comlekoglu, Tina, Hahn, Young S.·2025·Frontiers in Immunology

Abstract

Liver macrophages play a role in the development of liver fibrosis progression via the regulation of inflammatory signaling. However, the precise mechanisms of macrophages contributing to liver fibrosis progression remain unclear. Using a preclinical model of CCl4-treated mice, we determined the composition of immune cells and the alteration of inflammatory gene expression. Our findings revealed a significant increase in liver macrophages, particularly those derived from infiltrating blood monocytes, in fibrotic mice. Moreover, the expression levels of type I IFN signature genes such as IFNα , IFNβ , ISG15 , USP18 , Ifi44 , Ifit1 , Ifit2 , IRF3 , and IRF7 were elevated in fibrotic mice. To determine the role of type I IFN signaling in liver fibrosis, we administered an IFNAR-1 antibody to block this pathway for 3 days prior to harvesting the liver. Notably, IFNAR-1 blockade reduced macrophage numbers compared to control mice and alleviated liver fibrosis in mice with increased hepatocyte proliferation and apoptosis. The ratio of P-STAT3/P-STAT1 in monocyte-derived macrophages was increased in the IFNAR-1 blockade group compared to fibrotic mice, and this was related to the appearance of M2 macrophage differentiation. Additionally, single-cell RNA-seq analysis indicated that IFNAR blockade affected inflammatory pathways involved in hepatocyte regeneration and fibrosis prevention. Taken together, IFNAR-1 blockade alleviates liver fibrosis progression by modulating macrophage inflammatory responses. These results provide insights for developing anti-fibrotic therapies against type I IFN signaling.

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Crossref · 10.3389/fimmu.2025.1528382

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  1. [37]Gebhardt T Palendira U Tscharke DC Bedoui S. Tissue-resident memory T cells in tissue homeostasis, persistent infection, and cancer surveillance. Immunol Rev. (2018) 283: 54– 76. doi: 10.1111/imr.2018.283.issue-1 29664571 · DOI
  2. [55]Li X Jiang M Chen X Sun W. Etanercept alleviates psoriasis by reducing the Th17/Treg ratio and promoting M2 polarization of macrophages. Immunity Inflammation Dis. (2022) 10: e734. doi: 10.1002/iid3.v10.12 PMC9639465 36444619 · DOI

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Authors
Park, S.-J., Garcia Diaz, J., Comlekoglu, T., & Hahn, Y. S.
Affiliations
University of Virginia (US)
Corresponding author
Hahn, Young S.
Venue
Frontiers in Immunology
Published
2025-04-07
Volume
16
Pages
1528382-1528382
ISSN
1664-3224 (ISSN-L)
OpenAlex
W4409239078
Cited by
10
References
58
Citations by year
2026: 9 · 2025: 1
FWCI
5.62
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Institute for Health and Care Research (DK122737)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
Keywords
liver fibrosis, type I interferon signaling, hepatic macrophages, STAT3 signaling, M2 macrophage polarization, monocyte-derived macrophages, carbon tetrachloride-induced liver injury, hepatocyte proliferation, hepatocyte apoptosis, hepatocyte regeneration, antifibrotic therapy
MeSH terms
Animals, Carbon Tetrachloride, Disease Models, Animal, Liver, Liver Cirrhosis, Macrophages, Male, Mice, Inbred C57BL, Signal Transduction, STAT3 Transcription Factor, Mice, Receptor, Interferon alpha-beta

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