Wogonin inhibits IGF-1-stimulated cell growth and estrogen receptor α expression in breast adenocarcinoma cell and angiogenesis of chick chorioallantoic membrane.
- Author:
Xing MA
1
;
Kun-Peng XIE
;
Fei SHANG
;
Hong-Nan HUO
;
Li-Meng WANG
;
Ming-Jie XIE
Author Information
1. Liaoning Normal University, Dalian, China.
- Publication Type:Journal Article
- MeSH:
Adenocarcinoma;
metabolism;
pathology;
Angiogenesis Inhibitors;
pharmacology;
Animals;
Breast Neoplasms;
metabolism;
pathology;
Cell Line, Tumor;
Cell Proliferation;
drug effects;
Chick Embryo;
Chorioallantoic Membrane;
blood supply;
Estrogen Receptor alpha;
genetics;
metabolism;
Female;
Flavanones;
pharmacology;
Humans;
Insulin-Like Growth Factor I;
antagonists & inhibitors;
pharmacology;
Scutellaria;
chemistry
- From:
Acta Physiologica Sinica
2012;64(2):207-212
- CountryChina
- Language:Chinese
-
Abstract:
The aim of the present study was to investigate the involvements of insulin-like growth factor-1 (IGF-1) and estrogen receptor α (ERα) in the inhibitory effect of wogonin on the breast adenocarcinoma growth. Moreover, the effect of wogonin on the angiogenesis of chick chorioallantoic membrane (CAM) was also investigated. MCF-7 cells (human breast adenocarcinoma cell line) were subjected to several drugs, including IGF-1, wogonin and ER inhibitor ICI182780, alone or in combination. MTT assay was used to detect breast cancer proliferation. Western blot was used to analyze ERα and p-Akt expression levels. CAM models prepared from 6-day chicken eggs were employed to evaluate angiogenesis inhibition. The results showed wogonin and ICI182780 both exhibited a potent ability to blunt IGF-1-stimulated MCF-7 cell growth. Either of wogonin and ICI182780 significantly inhibited ERα and p-Akt expressions in IGF-1-treated cells. The inhibitory effect of wogonin showed no difference from that of ICI182780 on IGF-1-stimulated expressions of ERα and p-Akt. Meanwhile, wogonin at different concentrations showed significant inhibitory effect on CAM angiogenesis. These results suggest the inhibitory effect of wogonin on breast adenocarcinoma growth via inhibiting IGF-1-mediated PI3K-Akt pathway and regulating ERα expression. Furthermore, wogonin has a strong anti-angiogenic effect on CAM model.
