Cited by 57Fibroblast Growth Factor ResearchAdipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and Metabolism

Downstream Signaling Pathways in Mouse Adipose Tissues Following Acute In Vivo Administration of Fibroblast Growth Factor 21

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Muise, Eric S., Souza, Sandra, Chi, An, Tan, Yejun, Zhao, Xuemei, Liu, Franklin, Dallas-yang, Qing, Wu, Margaret +13 more·2013·PLoS ONE

Abstract

FGF21 is a novel secreted protein with robust anti-diabetic, anti-obesity, and anti-atherogenic activities in preclinical species. In the current study, we investigated the signal transduction pathways downstream of FGF21 following acute administration of the growth factor to mice. Focusing on adipose tissues, we identified FGF21-mediated downstream signaling events and target engagement biomarkers. Specifically, RNA profiling of adipose tissues and phosphoproteomic profiling of adipocytes, following FGF21 treatment revealed several specific changes in gene expression and post-translational modifications, specifically phosphorylation, in several relevant proteins. Affymetrix microarray analysis of white adipose tissues isolated from both C57BL/6 (fed either regular chow or HFD) and db/db mice identified over 150 robust potential RNA transcripts and over 50 potential secreted proteins that were changed greater than 1.5 fold by FGF21 acutely. Phosphoprofiling analysis identified over 130 phosphoproteins that were modulated greater than 1.5 fold by FGF21 in 3T3-L1 adipocytes. Bioinformatic analysis of the combined gene and phosphoprotein profiling data identified a number of known metabolic pathways such as glucose uptake, insulin receptor signaling, Erk/Mapk signaling cascades, and lipid metabolism. Moreover, a number of novel events with hitherto unknown links to FGF21 signaling were observed at both the transcription and protein phosphorylation levels following treatment. We conclude that such a combined "omics" approach can be used not only to identify robust biomarkers for novel therapeutics but can also enhance our understanding of downstream signaling pathways; in the example presented here, novel FGF21-mediated signaling events in adipose tissue have been revealed that warrant further investigation.

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  • More recent studies failed to observe increases in plasma adiponectin levels in response to acute FGF21 administration.

    “However, more recent studies have challenged these findings by failing to observe increases in plasma adiponectin levels in response to acute FGF21 administration (11, 95).”

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Authors
Muise, E. S., Souza, S., Chi, A., Tan, Y., Zhao, X., Liu, F., Dallas-yang, Q., Wu, M., Sarr, T., Zhu, L., Guo, H., Li, Z., Li, W., Hu, W., Jiang, G., Paweletz, C. P., Hendrickson, R. C., Thompson, J. R., Mu, J., Berger, J. P., & Mehmet, H.
Affiliations
Merck & Co., Inc., Rahway, NJ, USA (United States) (US)
Corresponding author
Muise, Eric S.
Venue
PLoS ONE
Published
2013-09-06
Volume
8
Issue
9
Pages
e73011
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1993551202
Cited by
57
References
37
Citations by year
2026: 2 · 2025: 1 · 2024: 4 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 4 · 2019: 3 · 2018: 5 · 2017: 10 · 2016: 5 · 2015: 9 · 2014: 5 · 2013: 2
FWCI
3.13
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fibroblast Growth Factor Research
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
FGF21, adipose tissue, adipocytes, signal transduction, target engagement biomarkers, phosphoproteomics, gene expression profiling, white adipose tissue, db/db mice, high-fat diet, insulin receptor signaling, ERK signaling, lipid metabolism, glucose uptake, obesity, diabetes mellitus, obesity treatment
MeSH terms
Adipose Tissue, Animals, Blood Glucose, Body Weight, Adipose Tissue, Brown, Fibroblast Growth Factors, Gene Expression Regulation, Insulin, Male, Phosphoproteins, Transcription, Genetic, Reproducibility of Results, Signal Transduction, Cluster Analysis, Adipocytes, Proteome, Gene Expression Profiling, 3T3-L1 Cells, Mice, Adipose Tissue, White

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