Cited by 719Adipokines, Inflammation, and Metabolic DiseasesLipid metabolism and biosynthesisAdipose Tissue and Metabolism

Hepatic acetyl CoA links adipose tissue inflammation to hepatic insulin resistance and type 2 diabetes

Open access
Perry, Rachel J., Camporez, João-Paulo G., Kursawe, Romy, Titchenell, Paul M., Zhang, Dongyan, Perry, Curtis J., Jurczak, Michael J., Abudukadier, Abulizi +12 more·2015·Cell

Abstract

Impaired insulin-mediated suppression of hepatic glucose production (HGP) plays a major role in the pathogenesis of type 2 diabetes (T2D), yet the molecular mechanism by which this occurs remains unknown. Using a novel in vivo metabolomics approach, we show that the major mechanism by which insulin suppresses HGP is through reductions in hepatic acetyl CoA by suppression of lipolysis in white adipose tissue (WAT) leading to reductions in pyruvate carboxylase flux. This mechanism was confirmed in mice and rats with genetic ablation of insulin signaling and mice lacking adipose triglyceride lipase. Insulin's ability to suppress hepatic acetyl CoA, PC activity, and lipolysis was lost in high-fat-fed rats, a phenomenon reversible by IL-6 neutralization and inducible by IL-6 infusion. Taken together, these data identify WAT-derived hepatic acetyl CoA as the main regulator of HGP by insulin and link it to inflammation-induced hepatic insulin resistance associated with obesity and T2D.

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Crossref · 10.1016/j.cell.2015.01.012

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  • IL-6 from adipose tissue macrophages is released systemically to signal to hepatocytes.

    “studies suggest that IL-6 from adipose tissue macrophages is released systemically to signal to hepatocytes 18”

    From Amphiregulin from regulatory T cells promotes liver fibrosis and insulin resistance in non-alcoholic steatohepatitis (2024) · cites this paper as [18]

    The Results section on IL-6 infusion describes IL-6 produced locally by white-adipose-tissue macrophages as promoting adipose lipolysis, which then increases hepatic acetyl CoA and glucose production. Although the paper reports elevated plasma IL-6, it does not describe the proposed mechanism as IL-6 signaling directly to hepatocytes; it identifies adipose tissue as the IL-6 target. (LLM, conf=0.86)

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  • In metabolic disease, pro-inflammatory cytokines such as interleukin-6 from adipose tissue macrophages circulate systemically and promote hepatocyte insulin resistance.

    “In metabolic disease, pro-inflammatory cytokines such as interleukin (IL)-6 from adipose tissue macrophages circulate systemically and promote hepatocyte insulin resistance 18 .”

    From Amphiregulin from regulatory T cells promotes liver fibrosis and insulin resistance in non-alcoholic steatohepatitis (2024) · cites this paper as [18]

    The Results sections report elevated plasma and white-adipose-tissue macrophage IL-6 in high-fat-fed rats and show that IL-6 promotes hepatic insulin resistance. They attribute the effect to increased adipose-tissue lipolysis and hepatic acetyl-CoA–driven glucose production, not a demonstrated direct effect on hepatocytes. The Discussion reports an association with hepatic insulin resistance in obese adolescents, but does not establish the same causal pathway in humans. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • IL-6 promotes hepatic insulin resistance through IL-6/STAT3-induced inhibition of insulin receptor signaling.

    “consistent with previous studies that indicate IL-6 promotes hepatic insulin resistance through IL-6/STAT3induced inhibition of insulin receptor signaling 18,45,46”

    From Amphiregulin from regulatory T cells promotes liver fibrosis and insulin resistance in non-alcoholic steatohepatitis (2024) · cites this paper as [18]

    The Results section reports that IL-6 infusion increased hepatic glucose production and describes IL-6-induced hepatic insulin resistance in rats. But it attributes the effect to increased adipose-tissue lipolysis, hepatic acetyl-CoA, and pyruvate carboxylase activity—not to STAT3-mediated inhibition of insulin receptor signaling. Page numbers are unavailable in our copy. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • In contexts of chronically increased IL6 such as obesity or rheumatoid arthritis, IL6 has been shown to induce insulin resistance.

    “In contexts of chronically increased IL6 such as obesity or rheumatoid arthritis, IL6 has been shown to induce insulin resistance (Castaneda et al., 2019; Kim et al., 2004; Perry et al., 2015).”

    From Origin and function of stress-induced IL-6 in murine models (2020) · cites this paper as Perry et al., 2015

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Authors
Perry, R. J., Camporez, J.-P. G., Kursawe, R., Titchenell, P. M., Zhang, D., Perry, C. J., Jurczak, M. J., Abudukadier, A., Han, M. S., Zhang, X.-M., Ruan, H.-B., Yang, X., Caprio, S., Kaech, S. M., Sul, H. S., Birnbaum, M. J., Davis, R. J., Cline, G. W., Petersen, K. F., & Shulman, G. I.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Yale University (US)
  • University of Pennsylvania (US)
  • University of Massachusetts Chan Medical School (US)
  • University of California, Berkeley (US)
Corresponding author
Shulman, Gerald I.
Venue
Cell
Publisher
Elsevier BV
Published
2015-02
Volume
160
Issue
4
Pages
745-758
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2031533316
Cited by
719
References
60
Citations by year
2026: 45 · 2025: 41 · 2024: 59 · 2023: 55 · 2022: 65 · 2021: 75 · 2020: 86 · 2019: 65 · 2018: 66 · 2017: 81 · 2016: 56 · 2015: 23
FWCI
59.11
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • The Journal of the American Medical Association (JAMA) Network (American Medical Association) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Novo Nordisk Foundation Center for Basic Metabolic Research
  • National Institutes of Health (P30 DK-45735, R01 AG-023686, R01 DK-056886, R01 DK-093959, R01 DK-40936, R01 DK085577, R01 DK93928, R01 NS-087568, R01-HD 04787, R01-HD028016, R24 DK-085638, R24 DK-090963, T32 DK-101019, U24 DK-059635, UL1 TR-000142)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
hepatic insulin resistance, type 2 diabetes, hepatic glucose production, white adipose tissue inflammation, adipose triglyceride lipase, lipolysis, pyruvate carboxylase, insulin signaling, interleukin-6, obesity, in vivo metabolomics
MeSH terms
Acetyl Coenzyme A, Adolescent, Animals, Diabetes Mellitus, Type 2, Glucose, Humans, Hyperglycemia, Insulin Resistance, Lipolysis, Liver, Male, Obesity, Panniculitis, Interleukin-6, Rats, Sprague-Dawley, Mice, Adipose Tissue, White, Diet, High-Fat

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