title: Quercetin prevents adipogenesis by regulation of transcriptional factors and lipases in OP9 cells.
abstract: With the industrialization of society, the increase in the prevalence of obesity and metabolic disorders has become an important health concern in a number of countries. Quercetin (3,30,40,5,7-pentahydroxyflavone) is well known as a bioactive flavonoid in a variety of biological resources. The aim of the present study was to explore the machanisms responsible for the anti-adipogenic activity of quercetin and its effects on the lipolysis in OP9 mouse stromal cells which rapidly differentiate into adipocytes. The differentiation of OP9 cells into adipocytes was evaluated by the measurement of lipid accumulation by Oil Red O (ORO) staining; lipid accumulation was significantly impaired by treatment with quercetin. Reverse transcription-polymerase chain reaction (RT-PCR) and western blot analysis were used to measure the expression levels of CCAAT/enhancer binding protein α (C/EBPα), proliferator-activated receptor γ (PPARγ), sterol regulatory element-binding protein-1 (SREBP-1) and fatty acid synthase (FAS). The mRNA expression levels of lipases, such as adipose triglyceride lipase (ATGL), hormone sensitive lipase (HSL) and lipoprotein lipase (LPL) were also measured by RT-PCR. Quercetin significantly decreased the expression of transcription factors, including C/EBPα, PPARγ and SREBP-1c both at the protein and mRNA level. The results from the present study demonstrate that quercetin prevents adipogenesis by upregulating ATGL and HSL expression and downregulating FAS, LPL and adipocyte fatty acid-binding protein (aP2) expression, as well as the expression of transcription factors. Our data suggest that quercetin has therapeutic potential by regulating the expression of transcriptional factors and enzymes associated with adipogenesis.
authors.affiliation: Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Yun-Soo
authors.initials: YS
authors.lastname: Seo
authors.affiliation: Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Ok-Hwa
authors.initials: OH
authors.lastname: Kang
authors.affiliation: BK21 Plus Team, Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Sung-Bae
authors.initials: SB
authors.lastname: Kim
authors.affiliation: BK21 Plus Team, Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Su-Hyun
authors.initials: SH
authors.lastname: Mun
authors.affiliation: Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Da-Hye
authors.initials: DH
authors.lastname: Kang
authors.affiliation: BK21 Plus Team, Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Da-Wun
authors.initials: DW
authors.lastname: Yang
authors.affiliation: Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Jang-Gi
authors.initials: JG
authors.lastname: Choi
authors.affiliation: Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Young-Mi
authors.initials: YM
authors.lastname: Lee
authors.affiliation: BK21 Plus Team, Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Dae-Kil
authors.initials: DK
authors.lastname: Kang
authors.affiliation: BK21 Plus Team, Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Ho-Seog
authors.initials: HS
authors.lastname: Lee
authors.affiliation: Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea.
authors.forename: Dong-Yeul
authors.initials: DY
authors.lastname: Kwon
mesh_terms: D050156:Adipogenesis / Q000187:drug effects*; D000818:Animals; D002460:Cell Line; D008049:Lipase / Q000235:genetics / Q000378:metabolism*; D051379:Mice; D011794:Quercetin / Q000494:pharmacology*; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*
chemical_list: D014157:Transcription Factors; D011794:Quercetin; D008049:Lipase