Journal
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
Volume 60, Issue 3, Pages 1015-1025Publisher
SPRINGER INDIA
DOI: 10.1007/s13197-022-05436-x
Keywords
Resveratrol butyrate ester; Lipogenesis; Isobutyl-methylxanthine; dexamethasone; and insulin; Adenosine monophosphate kinase
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This study reveals the inhibitory effect of Resveratrol butyrate esters (RBEs) on adipogenesis by regulating adipogenic protein expression and increasing the p-AMPK/AMPK ratio. The accumulation of intracellular lipid droplets in adipocytes was reduced in a dose-dependent manner after RBEs treatment. These findings contribute to a better understanding of the potential anti-obesity properties and applications of RBEs.
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 mu M 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.
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