title: Inhibitory effects of quercetagetin 3,4'-dimethyl ether purified from Inula japonica on cellular senescence in human umbilical vein endothelial cells.
abstract: Cellular senescence contributes to tissue and organismal aging, tumor suppression and progress, tissue repair and regeneration, and age-related diseases. Thus, aging intervention might be beneficial for treatment and prevention of diverse age-related diseases. In the present study, we investigated whether four compounds purified from Inula japonica exert inhibitory activity against cellular senescence induced by adriamycin in human umbilical vein endothelial cells (HUVECs). Among them, compound 4 (quercetagetin 3,4'-dimethyl ether) showed inhibitory activity against cellular senescence, which was confirmed by senescence-associated β-galactosidase (SA-β-gal) activity, p53 and p21 protein levels, and intracellular ROS levels. Compound 4 also reduced SA-β-gal activity in HUVECs under replicative senescence. These results suggest that compound 4 represses cellular senescence in HUVECs and might be useful for the development of dietary supplements or cosmetics that alleviate tissue aging or age-related diseases.
authors.affiliation: Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University, Daegu, 705-717, Republic of Korea.|Aging-Associated Vascular Disease Research Center, College of Medicine, Yeungnam University, Daegu, 705-717, Republic of Korea.
authors.forename: Hyo Hyun
authors.initials: HH
authors.lastname: Yang
authors.affiliation: College of Pharmacy, Yeungnam University, Gyongsan, 712-749, Republic of Korea.
authors.forename: Haiyan
authors.initials: H
authors.lastname: Zhang
authors.affiliation: College of Pharmacy, Yeungnam University, Gyongsan, 712-749, Republic of Korea.
authors.forename: Jong-Keun
authors.initials: JK
authors.lastname: Son
authors.affiliation: Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University, Daegu, 705-717, Republic of Korea. kimjr@ynu.ac.kr.|Aging-Associated Vascular Disease Research Center, College of Medicine, Yeungnam University, Daegu, 705-717, Republic of Korea. kimjr@ynu.ac.kr.
authors.forename: Jae-Ryong
authors.initials: JR
authors.lastname: Kim
mesh_terms: D016922:Cellular Senescence / Q000187:drug effects*; D002867:Chromones / Q000302:isolation & purification / Q000494:pharmacology*; D050759:Cyclin-Dependent Kinase Inhibitor p21 / Q000378:metabolism; D004317:Doxorubicin / Q000633:toxicity; D004987:Ethers / Q000302:isolation & purification / Q000494:pharmacology*; D061307:Human Umbilical Vein Endothelial Cells / Q000187:drug effects* / Q000378:metabolism; D006801:Humans; D038143:Inula / Q000737:chemistry*; D017382:Reactive Oxygen Species / Q000378:metabolism; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism; D001616:beta-Galactosidase / Q000378:metabolism
chemical_list: D002867:Chromones; D050759:Cyclin-Dependent Kinase Inhibitor p21; D004987:Ethers; D017382:Reactive Oxygen Species; D016159:Tumor Suppressor Protein p53; C000609191:quercetagetin 3,4'-dimethyl ether; D004317:Doxorubicin; D001616:beta-Galactosidase
keywords: Aging intervention; Cellular senescence; Human umbilical vein endothelial cells; Inula japonica; Quercetagetin 3,4'-dimethyl ether