Resveratrol butyrate esters inhibit lipid biosynthesis in 3T3-L1 cells by AMP-activated protein kinase phosphorylation

Ming-Kuei Shih; Shu-Ling Hsieh; Yu-Wen Huang; Anil Kumar Patel; Cheng-di Dong; Chih-Yao Hou

doi:10.1007/s13197-022-05436-x

Resveratrol butyrate esters inhibit lipid biosynthesis in 3T3-L1 cells by AMP-activated protein kinase phosphorylation

J Food Sci Technol. 2023 Mar;60(3):1015-1025. doi: 10.1007/s13197-022-05436-x. Epub 2022 Apr 4.

Authors

Ming-Kuei Shih¹, Shu-Ling Hsieh², Yu-Wen Huang², Anil Kumar Patel^{2

3}, Cheng-di Dong², Chih-Yao Hou²

Affiliations

¹ Graduate Institute of Food Culture and Innovation, National Kaohsiung University of Hospitality and Tourism, No.1, Songhe Rd., Xiaogang Dist., Kaohsiung, 812301 Taiwan.
² Department of Seafood Science, National Kaohsiung University of Science and Technology, No.142, Haijhuan Rd., Nanzih Dist., Kaohsiung, 81157 Taiwan.
³ Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, No.142, Haijhuan Rd., Nanzih Dist., Kaohsiung, 81157 Taiwan.

Abstract

Resveratrol butyrate esters (RBEs), which are novel resveratrol-synthesized derivatives, exhibit increased biological activity. This study elucidated the effect of RBEs on fat metabolism and their anti-obesity characteristics. Their molecular mechanism was investigated in the 3T3-L1 murine preadipocyte cells and adipocytes. RBE doses of < 2 μM did not induce a significant change in the viability of 3T3-L1 adipocytes. After RBEs treatment, intracellular lipid droplet accumulation in 3T3-L1 adipocytes was stimulated by methylisobutylxanthine, dexamethasone, and insulin-containing medium. However, a significant dose-dependent reduction in intracellular lipid levels was observed. The mRNA levels of two adipogenic transcription factors (peroxisome proliferator-activated receptor [PPAR] and CCAAT/enhancer-binding proteins [C/EBP]) and lipogenic proteins (fatty acid-binding protein 4 [FABP4] and fatty acid synthase [FAS]) were significantly attenuated by RBE treatment in both MDI-stimulated and differentiated 3T3-L1 adipocytes. Moreover, the phosphorylation level of adenosine monophosphate-activated protein kinase (AMPK) also dramatically increased in the MDI + RBE-treated group compared to that in the MDI + vehicle-treated group. Collectively, our study provides strong evidence that RBEs inhibit adipogenesis by regulating adipogenic protein expression and increasing the p-AMPK/AMPK ratio. Future studies will be conducted on animal models to validate the application of RBEs as a functional food ingredient in improving human health.

Supplementary information: The online version contains supplementary material available at 10.1007/s13197-022-05436-x.

Keywords: 3T3-L1 adipocyte; Adenosine monophosphate kinase; Isobutyl-methylxanthine, dexamethasone, and insulin; Lipogenesis; Resveratrol butyrate ester.