title: Flavonoids Isolated from Korea Citrus aurantium L. Induce G2/M Phase Arrest and Apoptosis in Human Gastric Cancer AGS Cells.
abstract: Aim of the Study. Citrus species is used in traditional medicine as medicinal herb in several Asian countries including Korea. Flavonioids became known as various properties, such as anti-oxidants, anti-inflammation and anti-cancer, and so forth. The present study, the anti-cancer effect of flavonioids isolated from Citrus aurantium L. in human gastric cancer AGS cells has been investigated. Materials and Methods. The anti-proliferative activity was assayed using MTT assay. Cell cycle analysis was done using flow cytometry and apoptosis detection was done using by hoechst fluorescent staining and Annexin V-propidium iodide double staining. Western blot was used to detect the expression of protein related with cell cycle and apoptosis. Results. Flavonoids isolated from Citrus aurantium L. have the effect of anti proliferation on AGS cells with IC50 value of 99 μg/mL. Flavonoids inhibited cell cycle progression in the G2/M phase and decrease expression level of cyclin B1, cdc 2, cdc 25c. Flavonoids induced apoptosis through activate caspase and inactivate PARP. Conclusions. Flavonoids isolated from Citrus aurantium L. induced G2/M phase arrest through the modulation of cell cycle related proteins and apoptosis through activation caspase. These finding suggest flavonoids isolated from Citrus aurantium L. were useful agent for the chemoprevention of gastric cancer.
authors.affiliation: Research Institute of Life science and College of Veterinary Medicine, Gyeongsang National University, Gazwa, Jinju 660-701, Republic of Korea.
authors.forename: Do-Hoon
authors.initials: DH
authors.lastname: Lee
authors.forename: Kwang-Il
authors.initials: KI
authors.lastname: Park
authors.forename: Hyeon-Soo
authors.initials: HS
authors.lastname: Park
authors.forename: Sang-Rim
authors.initials: SR
authors.lastname: Kang
authors.forename: Arulkumar
authors.initials: A
authors.lastname: Nagappan
authors.forename: Jin-A
authors.initials: JA
authors.lastname: Kim
authors.forename: Eun-Hee
authors.initials: EH
authors.lastname: Kim
authors.forename: Won-Sup
authors.initials: WS
authors.lastname: Lee
authors.forename: Young-Sool
authors.initials: YS
authors.lastname: Hah
authors.forename: Hyon-Jong
authors.initials: HJ
authors.lastname: Chung
authors.forename: Su-Jin
authors.initials: SJ
authors.lastname: An
authors.forename: Gon-Sup
authors.initials: GS
authors.lastname: Kim