Effects of a Chinese herbal health formula, "Gan-Lu-Yin", on angiogenesis.
According to the known effects of each ingredient, Gan-Lu-Yin (GLY), a traditional Chinese herbal formula, has the potential to be an antiangiogenic agent. The purpose of this study was to explore the putative effect of GLY on antiangiogenesis. An ethanol extract of GLY was tested on chicken chorioallantoic membrane (CAM) and human umbilical vein endothelial cells (HUVEC) to evaluate the effects of GLY extract on cell proliferation, migration, and tube formation. The results showed that treatment with 1.0 mg/mL of GLY extract could markedly reduce cell migration and in vitro tube formation of HUVEC, and 1.5 mg/mL of GLY extract was sufficient to inhibit proliferation of HUVEC. The expression level of vascular endothelial growth factor (VEGF) of HUVEC was significantly decreased by 1.5 and 2.0 mg/mL of GLY extract. In chicken CAM assay, all tested concentrations of GLY extract were found to reduce the capillary mesh on the CAM of fertilized eggs. The inhibitory effects of GLY extract (1 mg/mL) were also found on tumor cell-induced HUVEC proliferation and tube formation. These observations suggested that GLY extract has an inhibitory effect on angiogenesis, which in turn may prevent tumor growth, and its mechanism might be partially associated with blocking VEGF protein expression of HUVEC.
Pan
Chun-Hsu
CH
School of Pharmacy, China Medical University,Taichung 40402, Taiwan.
Hsieh
I-Chun
IC
Liu
Fon-Chang
FC
Hsieh
Wen-Tsong
WT
Sheu
Ming-Jyh
MJ
Koizumi
Ayano
A
Wu
Chieh-Hsi
CH
D020533:Angiogenesis Inhibitors / Q000494:pharmacology*; D000818:Animals; D002478:Cells, Cultured; D002642:Chick Embryo; D049033:Chorioallantoic Membrane / Q000098:blood supply / Q000187:drug effects / Q000378:metabolism; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D042783:Endothelial Cells / Q000187:drug effects / Q000378:metabolism / Q000502:physiology; D015870:Gene Expression / Q000187:drug effects; D006801:Humans; D018919:Neovascularization, Physiologic / Q000187:drug effects*; D042461:Vascular Endothelial Growth Factor A / Q000235:genetics / Q000378:metabolism
D020533:Angiogenesis Inhibitors; D004365:Drugs, Chinese Herbal; D042461:Vascular Endothelial Growth Factor A