Cited by 80Sphingolipid Metabolism and SignalingAdipokines, Inflammation, and Metabolic DiseasesLipid metabolism and biosynthesis

Adipocyte lipolysis-stimulated interleukin-6 production requires sphingosine kinase 1 activity

Open access
Zhang, Wenliang, Mottillo, Emilio P., Zhao, Jiawei, Gartung, Allison, VanHecke, Garrett C., Lee, Jen-Fu, Maddipati, Krishna R., Xu, Haiyan +4 more·2014·Journal of Biological Chemistry

Abstract

Adipocyte lipolysis can increase the production of inflammatory cytokines such as interleukin-6 (IL-6) that promote insulin resistance. However, the mechanisms that link lipolysis with inflammation remain elusive. Acute activation of β3-adrenergic receptors (ADRB3) triggers lipolysis and up-regulates production of IL-6 in adipocytes, and both of these effects are blocked by pharmacological inhibition of hormone-sensitive lipase. We report that stimulation of ADRB3 induces expression of sphingosine kinase 1 (SphK1) and increases sphingosine 1-phosphate production in adipocytes in a manner that also depends on hormone-sensitive lipase activity. Mechanistically, we found that adipose lipolysis-induced SphK1 up-regulation is mediated by the c-Jun N-terminal kinase (JNK)/activating protein-1 signaling pathway. Inhibition of SphK1 by sphingosine kinase inhibitor 2 diminished the ADRB3-induced IL-6 production both in vitro and in vivo. Induction of IL-6 by ADRB3 activation was suppressed by siRNA knockdown of Sphk1 in cultured adipocytes and was severely attenuated in Sphk1 null mice. Conversely, ectopic expression of SphK1 increased IL-6 expression in adipocytes. Collectively, these data demonstrate that SphK1 is a critical mediator in lipolysis-triggered inflammation in adipocytes.

Integrity signals

Registry

Crossref · 10.1074/jbc.m114.601096

Cites

46 of 46 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • ADRB3 agonist CL316,243, but not ADRB1/2 agonist isoproterenol, was sufficient to induce IL6.

    “We thus challenged animals with ADRB agonists and found that the ADRB3 agonist CL316,243, but not the ADRB1/2 agonist isoproterenol, was sufficient to induce IL6 (Figure 3E and F), consistent with previous reports (Kosteli et al., 2010; Zhang et al., 2014).”

    From Origin and function of stress-induced IL-6 in murine models (2020) · cites this paper as Zhang et al., 2014

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Zhang, W., Mottillo, E. P., Zhao, J., Gartung, A., VanHecke, G. C., Lee, J.-F., Maddipati, K. R., Xu, H., Ahn, Y.-H., Proia, R. L., Granneman, J. G., & Lee, M.-J.
Affiliations
  • Wayne State University (US)
  • Brown University (US)
  • National Institutes of Health (US)
Corresponding author
  • Granneman, James G.
  • Lee, Menq-Jer
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2014-11
Volume
289
Issue
46
Pages
32178-32185
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1973740991
Cited by
80
References
46
Citations by year
2026: 2 · 2025: 7 · 2024: 5 · 2023: 6 · 2022: 5 · 2021: 10 · 2020: 10 · 2019: 8 · 2018: 4 · 2017: 9 · 2016: 5 · 2015: 8 · 2014: 1
FWCI
3.14
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (HL-071071, DK-076229, DK-062292, 5P600-DK020572)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sphingolipid Metabolism and Signaling
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
adipocyte lipolysis, interleukin-6, sphingosine kinase 1, sphingosine-1-phosphate, beta3-adrenergic receptor, hormone-sensitive lipase, c-Jun N-terminal kinase, AP-1 signaling, adipose tissue inflammation, insulin resistance
MeSH terms
Sphingosine Kinase, Adipose Tissue, Animals, Inflammation, Lipolysis, Male, Mice, Inbred C57BL, Sphingolipids, Signal Transduction, Interleukin-6, Adipocytes, Phosphotransferases (Alcohol Group Acceptor), RNA, Small Interfering, 3T3-L1 Cells, MAP Kinase Kinase 4, Mice, Tandem Mass Spectrometry

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review