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Inhibitory effect of isopanduratin A on adipogenesis: a study of possible mechanisms

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Item Type:Article
Title:Inhibitory effect of isopanduratin A on adipogenesis: a study of possible mechanisms
Creators Name:Rungsa, P. and San, H.T. and Sritularak, B. and Böttcher, C. and Prompetchara, E. and Chaotham, C. and Likhitwitayawuid, K.
Abstract:The root of Boesenbergia rotunda, a culinary plant commonly known as fingerroot, has previously been reported to possess anti-obesity activity, with four flavonoids identified as active principles, including pinostrobin, panduratin A, cardamonin, and isopanduratin A. However, the molecular mechanisms underlying the antiadipogenic potential of isopanduratin A remain unknown. In this study, isopanduratin A at non-cytotoxic concentrations (1-10 μM) significantly suppressed lipid accumulation in murine (3T3-L1) and human (PCS-210-010) adipocytes in a dose-dependent manner. Downregulation of adipogenic effectors (FAS, PLIN1, LPL, and adiponectin) and adipogenic transcription factors (SREBP-1c, PPARγ, and C/EBPα) occurred in differentiated 3T3-L1 cells treated with varying concentrations of isopanduratin A. The compound deactivated the upstream regulatory signals of AKT/GSK3β and MAPKs (ERK, JNK, and p38) but stimulated the AMPK-ACC pathway. The inhibitory trend of isopanduratin A was also observed with the proliferation of 3T3-L1 cells. The compound also paused the passage of 3T3-L1 cells by inducing cell cycle arrest at the G0/G1 phase, supported by altered levels of cyclins D1 and D3 and CDK2. Impaired p-ERK/ERK signaling might be responsible for the delay in mitotic clonal expansion. These findings revealed that isopanduratin A is a strong adipogenic suppressor with multi-target mechanisms and contributes significantly to anti-obesogenic activity. These results suggest the potential of fingerroot as a functional food for weight control and obesity prevention.
Keywords:Fingerroot, Boesenbergia rotunda, Obesity, Adipocyte, Isopanduratin A, AKT/GSK3β, AMPK-ACC, MAPKs, MCE
Page Range:1014
Date:27 February 2023
Official Publication:https://doi.org/10.3390/foods12051014
PubMed:View item in PubMed

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