4β-Hydroxywithanolide E and withanolide E from Physalis peruviana L. inhibit adipocyte differentiation of 3T3-L1 cells through modulation of mitotic clonal expansion.

Journal of Natural Medicines
Momochika KumagaiYoshiki Morimoto

Abstract

Obesity is a risk factor for many diseases, including type 2 diabetes and cardiovascular disease, and is related to the rising morbidity and mortality. Discovery of agents targeting adipogenesis, especially from natural sources, is important for the treatment of obesity. Here, we aimed to identify anti-adipogenic substances in methanol extracts of Physalis peruviana and to investigate their effect, along with underlying mechanisms. Activity-guided fractionation of the extract revealed 4β-hydroxywithanolide E (HWE) and withanolide E (WE) as the adipogenesis inhibitors. Both compounds suppressed mRNA expression of central adipogenic transcription factors, peroxisome proliferator-activated receptor γ, and CCAAT/enhancer-binding protein α in the early stage of adipocyte differentiation. The inhibitory action of these two withanolides on adipogenesis was largely limited to this stage. The proliferation of preadipocytes was markedly suppressed by treatment with HWE and WE for 24 and 48 h in the differentiation medium, and cell-cycle arrest in the G0/G1 phase was observed. Therefore, our results suggested that withanolides from P. peruviana to be novel anti-adipogenic compounds that modulate mitotic clonal expansion.

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Citations

Nov 25, 2021·Natural Product Reports·Gui-Yang XiaFeng Qiu

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Methods Mentioned

BETA
column chromatography
NMR
flow cytometry
light microscopy
reverse transcription PCR
PCR
Protein Assay

Software Mentioned

GraphPad Prism
ModFit LT

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