• Department of Epidemiology and Medical Statistics, Guangdong Medical University, Dongguan, Guangdong 523808, P. R. China;
DING Yuanlin, Email: gdmusbd@gdmu.edu.cn; YU Haibing, Email: hby616688@gdmu.edu.cn
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Objective To explore the metabolic changes during the differentiation of 3T3-L1 adipocytes caused by the treatment of the transient receptor potential vanilloid 4 (TRPV4)-specific agonist GSK1016790A basing on ultra-performance liquid chromatography-mass spectrometry technology. Methods Mouse 3T3-L1 cells were treated with GSK1016790A at different concentrations (0.1, 1, and 10 μmol/L), and the effect of drugs on cell proliferation was detected by cell counting kit-8 method. A mature adipocyte model was constructed, and GSK1016790A was used to activate TRPV4 channel protein activity and verify the expression levels of TRPV4 and triglycerides. Cell metabolites were collected for metabolomic studies, differential metabolites were screened between groups, and related metabolic pathways were analyzed. Results  After GSK1016790A intervened in mature adipocytes, the expression levels of TRPV4 mRNA and triglycerides in cells were significantly upregulated (P<0.05). Metabolomics detection found that GSK1016790A screened a total of 45 differential metabolites such as 2-amino-1,3,4-octadecanetriol, linoleic acid, sphingosine, sphinganine, sn-glycerol-3-phosphate and uridine, mainly involving 13 possible metabolic pathways such as sphingolipid metabolism and biosynthesis of unsaturated fatty acids. Conclusion  GSK1016790A may promote adipogenesis in adipocytes by activating TRPV4 channel protein activity, and at the same time participate in regulating metabolic pathways such as the biosynthesis of unsaturated fatty acids pathway and sphingolipid metabolism pathway, affecting lipid metabolism in adipocytes.

Citation: HUANG Jialu, LUO Ling, JIN Zhimei, YANG Zihua, CAO Rudai, WU Shufa, DING Yuanlin, YU Haibing. Effect of transient receptor potential vanilloid 4 agonist on lipid metabolism in adipocytes based on metabolomics. West China Medical Journal, 2023, 38(9): 1323-1332. doi: 10.7507/1002-0179.202302092 Copy

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