Cited by 242Adipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and MetabolismPeroxisome Proliferator-Activated Receptors

FNDC5 overexpression and irisin ameliorate glucose/lipid metabolic derangements and enhance lipolysis in obesity

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Xiong, Xiao-Qing, Chen, Dan, Sun, Hai-Jian, Ding, Lei, Wang, Jue-Jin, Chen, Qi, Li, Yue-Hua, Zhou, Ye-Bo +5 more·2015·Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease

Abstract

Irisin is a cleaved and secreted fragment of fibronectin type III domain containing 5 (FNDC5), and contributes to the beneficial effects of exercise on metabolism. Here we report the therapeutical effects of FNDC5/irisin on metabolic derangements and insulin resistance in obesity, and show the lipolysis effect of irisin and its signal molecular mechanism. In obese mice, lentivirus mediated-FNDC5 overexpression enhanced energy expenditure, lipolysis and insulin sensitivity, and reduced hyperlipidemia, hyperglycemia, hyperinsulinism, blood pressure and norepinephrine levels; it increased hormone-sensitive lipase (HSL) expression and phosphorylation, and reduced perilipin level and adipocyte diameter in adipose tissues. Subcutaneous perfusion of irisin reduced hyperlipidemia and hyperglycemia, and improved insulin resistance. Either FNDC5 overexpression or irisin perfusion only induced a tendency toward a slight decrease in body weight in obese mice. In 3T3-L1 adipocytes, irisin enhanced basal lipolysis rather than isoproterenol-induced lipolysis, which were prevented by inhibition of adenylate cyclase or PKA; irisin increased the HSL and perilipin phosphorylation; it increased PKA activity, and cAMP and HSL mRNA levels, but reduced perilipin expression. These results indicate that FNDC5/irisin ameliorates glucose/lipid metabolic derangements and insulin resistance in obese mice, and enhances lipolysis via cAMP-PKA-HSL/perilipin pathway. FNDC5 or irisin can be taken as an effective therapeutic strategy for metabolic disorders.

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Crossref · 10.1016/j.bbadis.2015.06.017

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Authors
Xiong, X.-Q., Chen, D., Sun, H.-J., Ding, L., Wang, J.-J., Chen, Q., Li, Y.-H., Zhou, Y.-B., Han, Y., Zhang, F., Gao, X.-Y., Kang, Y.-M., & Zhu, G.-Q.
Affiliations
  • Nanjing Medical University (CN)
  • Xi'an Jiaotong University (CN)
Corresponding author
Zhu, Guo-Qing
Venue
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease
Publisher
Elsevier BV
Published
2015-09
Volume
1852
Issue
9
Pages
1867-1875
ISSN
0925-4439 (ISSN-L)
OpenAlex
W1931609017
Cited by
242
References
37
Citations by year
2026: 8 · 2025: 23 · 2024: 23 · 2023: 13 · 2022: 43 · 2021: 38 · 2020: 23 · 2019: 23 · 2018: 18 · 2017: 13 · 2016: 15 · 2015: 1
FWCI
12.28
Type
journal article
Language
en
Open access
Locations
  • Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (31171095, 31271213, 91439120)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
Keywords
FNDC5, irisin, obesity, insulin resistance, lipolysis, hyperlipidemia, hyperglycemia, hormone-sensitive lipase, perilipin, cAMP/PKA signaling, energy expenditure, adipocytes, exercise metabolism

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