Cited by 50Cancer, Lipids, and MetabolismLipid metabolism and biosynthesisAdipose Tissue and Metabolism

High-intensity interval training induces lactylation of fatty acid synthase to inhibit lipid synthesis

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Chen, Xuefei, Huang, Wenhua, Zhang, Jingbo, Li, Yanjun, Xing, Zheng, Guo, Lanlan, Jiang, Hongfeng, Zhang, Jing·2023·BMC Biology

Abstract

Background: The aim of study was to observe the effect of increased lactate levels during high-intensity interval training (HIIT) on protein lactylation, identify the target protein, and investigate the regulatory effect of lactylation on the function of the protein. Methods: C57B/L6 mice were divided into 3 groups: the control group, HIIT group, and dichloroacetate injection + HIIT group (DCA + HIIT). The HIIT and DCA + HIIT groups underwent 8 weeks of HIIT treatment, and the DCA + HIIT group was injected DCA before HIIT treatment. The expression of lipid metabolism-related genes was determined. Protein lactylation in subcutaneous adipose tissue was identified and analyzed using 4D label-free lactylation quantitative proteomics and bioinformatics analyses. The fatty acid synthase (FASN) lactylation and activity was determined. Results: HIIT had a significant effect on fat loss; this effect was weakened when lactate production was inhibited. HIIT significantly upregulated the protein lactylation while lactate inhibition downregulated in iWAT. FASN had the most modification sites. Lactate treatment increased FASN lactylation levels, inhibited FASN activity, and reduced palmitate and triglyceride synthesis in 3T3-L1 cells. Conclusions: This investigation revealed that lactate produced by HIIT increased protein pan-lactylation levels in iWAT. FASN lactylation inhibited de novo lipogenesis, which may be an important mechanism in HIIT-induced fat loss.

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Authors
Chen, X., Huang, W., Zhang, J., Li, Y., Xing, Z., Guo, L., Jiang, H., & Zhang, J.
Affiliations
  • Beijing Normal University (CN)
  • Capital Medical University (CN)
Corresponding author
Zhang, Jing
Venue
BMC Biology
Published
2023-09-19
Volume
21
Issue
1
Pages
196-196
ISSN
1741-7007 (ISSN-L)
OpenAlex
W4386857367
Cited by
50
References
37
Citations by year
2026: 22 · 2025: 19 · 2024: 9
FWCI
6.31
Type
journal article
Language
en
Open access
Locations
  • BMC Biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (31871207)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
high-intensity interval training, lactylation, fatty acid synthase, lactate, de novo lipogenesis, lipogenesis, subcutaneous adipose tissue, dichloroacetate, fat loss, 3T3-L1 adipocytes, triglyceride synthesis
MeSH terms
High-Intensity Interval Training, Animals, Lipids, Lactic Acid, Lipogenesis, Mice, Fatty Acid Synthase, Type I, Fatty Acid Synthases

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