title: Apigenin induces the apoptosis and regulates MAPK signaling pathways in mouse macrophage ANA-1 cells.
abstract: Apigenin is a naturally occurring plant flavonoid that possesses antioxidant, anti-cancer and anti-inflammatory properties. However, there are few reports has been done on the ability of apigenin to induce apoptosis in macrophages. In this study, mouse macrophage ANA-1 cells were incubated with different concentrations of apigenin. The cell viability was determined by an MTT assay. The cell apoptosis were analyzed by flow cytometric analysis. Apoptosis were also analyzed using a TUNEL assay and a DNA ladder. The level of intracellular ROS was detected using a dichlorofluorescein -diacetate probe. The expression levels of apoptosis-related proteins were detected by western blot analysis. The results showed that apigenin decreased the viability of ANA-1 cells and induced apoptosis in a dose- and time-dependent manner. Apigenin increased the level of intracellular ROS, downregulated the expression of Bcl-2 and upregulated the expression of caspase-3 and caspase-8 in ANA-1 cells. Furthermore, apigenin downregulated the expression of phospho-ERK and phospho-JNK, upregulated the expression of phospho-p38 and had no significant effect on the expression of Bax, ERK, JNK and p38. The results suggested that apigenin induced cell apoptosis in mouse macrophage ANA-1 cells may via increasing intracellular ROS, regulating the MAPK pathway, and then inhibiting Bcl-2 expression.
authors.affiliation: Department of Chinese Medicine Integrated with Western Medicine, Yangzhou University School of Medicine, Yangzhou, P.R. China.
authors.forename: Yuexia
authors.initials: Y
authors.lastname: Liao
authors.affiliation: Department of Cell Biology, Yangzhou University School of Medicine, Yangzhou, P.R. China.
authors.forename: Weigan
authors.initials: W
authors.lastname: Shen
authors.affiliation: Department of Chinese Medicine Integrated with Western Medicine, Yangzhou University School of Medicine, Yangzhou, P.R. China.
authors.forename: Guimei
authors.initials: G
authors.lastname: Kong
authors.affiliation: Department of Medicine, Yangzhou University School of Medicine, Yangzhou, P.R. China.
authors.forename: Houning
authors.initials: H
authors.lastname: Lv
authors.affiliation: Department of Chinese Medicine Integrated with Western Medicine, Yangzhou University School of Medicine, Yangzhou, P.R. China.
authors.forename: Wenhua
authors.initials: W
authors.lastname: Tao
authors.affiliation: Department of Chinese Medicine Integrated with Western Medicine, Yangzhou University School of Medicine, Yangzhou, P.R. China.
authors.forename: Ping
authors.initials: P
authors.lastname: Bo
mesh_terms: D000818:Animals; D047310:Apigenin / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D051017:Apoptosis Regulatory Proteins / Q000378:metabolism; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D042541:Intracellular Space / Q000187:drug effects / Q000378:metabolism; D020935:MAP Kinase Signaling System / Q000187:drug effects*; D008264:Macrophages / Q000166:cytology* / Q000187:drug effects / Q000201:enzymology*; D051379:Mice; D017382:Reactive Oxygen Species / Q000378:metabolism
chemical_list: D051017:Apoptosis Regulatory Proteins; D017382:Reactive Oxygen Species; D047310:Apigenin