Cited by 138Liver physiology and pathologyLiver Disease Diagnosis and TreatmentImmune cells in cancer

Hepatocyte-Macrophage Acetoacetate Shuttle Protects Against Tissue Fibrosis

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Puchalska, Patrycja, Martin, Shannon E., Huang, Xiaojing, Lengfeld, Justin E., Daniel, Bence, Graham, Mark J., Han, Xianlin, Nagy, Laszlo +2 more·2019·Cell Metabolism

Abstract

Metabolic plasticity has been linked to polarized macrophage function, but mechanisms connecting specific fuels to tissue macrophage function remain unresolved. Here we apply a stable isotope tracing, mass spectrometry-based untargeted metabolomics approach to reveal the metabolome penetrated by hepatocyte-derived glucose and ketone bodies. In both classically and alternatively polarized macrophages, [13 C]acetoacetate (AcAc) labeled ∼200 chemical features, but its reduced form D-[13 C]β-hydroxybutyrate (D-βOHB) labeled almost none. [13 C]glucose labeled ∼500 features, and while unlabeled AcAc competed with only ∼15% of them, the vast majority required the mitochondrial enzyme succinyl-coenzyme A-oxoacid transferase (SCOT). AcAc carbon labeled metabolites within the cytoplasmic glycosaminoglycan pathway, which regulates tissue fibrogenesis. Accordingly, livers of mice lacking SCOT in macrophages were predisposed to accelerated fibrogenesis. Exogenous AcAc, but not D-βOHB, ameliorated diet-induced hepatic fibrosis. These data support a hepatocyte-macrophage ketone shuttle that segregates AcAc from D-βOHB, coordinating the fibrogenic response to hepatic injury via mitochondrial metabolism in tissue macrophages.

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  • Metabolite extraction and LC/MS analysis was performed as described previously.

    “Metabolite extraction and LC/MS analysis was performed as described previously [55][56][57] .”
  • A hepatocyte-macrophage acetoacetate exchange blocks fibrogenic signaling to HSCs in a HFD mouse model.

    “investigators used a novel metabolomic and stable isotope tracing approach to uncover a hepatocyte-macrophage acetoacetate exchange that blocks fibrogenic signaling to HSCs in a HFD mouse model, although the detailed HSC-macrophage signaling pathways remain uncertain (103).”

    From Hepatic Stellate Cell-Immune Interactions in NASH (2022) · cites this paper as [103]

  • Neutrophil and macrophage subsets may blunt HSC activation and promote fibrosis regression.

    “Neutrophil and macrophage subsets may blunt HSC activation and promote fibrosis regression as well ( Figure 2 ) (69, 103).”

    From Hepatic Stellate Cell-Immune Interactions in NASH (2022) · cites this paper as [103]

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Authors
Puchalska, P., Martin, S. E., Huang, X., Lengfeld, J. E., Daniel, B., Graham, M. J., Han, X., Nagy, L., Patti, G. J., & Crawford, P. A.
Affiliations
  • University of Minnesota (US)
  • Sanford Burnham Prebys Medical Discovery Institute (US)
  • Memorial Sloan Kettering Cancer Center (US)
  • Ionis Pharmaceuticals (United States) (US)
  • The University of Texas at San Antonio Health Science Center (US)
  • Washington University in St. Louis (US)
Corresponding author
Crawford, Peter A.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2019-02
Volume
29
Issue
2
Pages
383-398.e7
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2901035617
Cited by
138
References
90
Citations by year
2026: 10 · 2025: 26 · 2024: 24 · 2023: 20 · 2022: 20 · 2021: 16 · 2020: 14 · 2019: 7 · 2018: 1
FWCI
5.95
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIH (DK091538, DK115924, CA235482, ES028365, OD024624)
  • American Heart Association (17POST33660450)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
Keywords
liver fibrosis, ketone bodies, beta-hydroxybutyrate, macrophage polarization, glucose metabolism, mitochondrial metabolism, isotope tracing, untargeted metabolomics
MeSH terms
Acetoacetates, Animals, Liver Cirrhosis, Experimental, Macrophages, Mice, Inbred C57BL, Mitochondria, 3-Hydroxybutyric Acid, Hepatocytes, Mice

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