RRC ID 69199
Author Doi M, Morita N, Okuzawa T, Ohgiya S, Okamoto D, Sato K, Ito Y, Matsuura H, Hashidoko Y.
Title Pinellic Acid Isolated from Quercetin-rich Onions has a Peroxisome Proliferator-Activated Receptor-Alpha/Gamma (PPAR-α/γ) Transactivation Activity.
Journal Planta Med
Abstract Quercetin, a flavonol, is a functional compound that is abundant in onions and is known to have antioxidant and anti-inflammatory effects. Quercetin and its glucoside are known to function as peroxisome proliferator-activated receptor (PPAR) ligands and showed high PPAR-α transactivation activity but little PPAR-γ transactivation activity in some reports. In this study, we demonstrated that an aqueous extract of a quercetin-rich onion cultivar increased transactivation activities not only of PPAR-α but also of PPAR-γ. We isolated (9S,12S,13S)-(10E)-9,12,13-trihydroxyoctadec-10-enoic acid (pinellic acid) obtained from the aqueous extract using PPAR-γ transactivation as an index. Furthermore, it was revealed that pinellic acid could transactivate PPAR-α. Our findings are the first report mentioned showing that trihydroxyoctadec-10-enoic acids showed PPAR-α/γ transactivation activities.
Volume 88(6)
Pages 440-446
Published 2022-5-1
DOI 10.1055/a-1345-9471
PMID 35038752
MeSH Fatty Acids, Unsaturated Onions / metabolism PPAR alpha / metabolism PPAR gamma* / metabolism Quercetin* / pharmacology Transcriptional Activation
IF 2.687
Resource
Human and Animal Cells CV-1(RCB0160)