Proteomic analysis effects of ginsenoside Rg1 on human umbilical vein endothelial cells stimulated by tumor necrosis factor-alpha.
Ginsenoside Rg1 (derived from ginseng root) has been found to have many vasoprotective activities. The present study was undertaken to examine effect of ginsenoside Rg1 on the secretion of nitric oxide (NO) in human umbilical vein endothelial cells (HUVECs) stimulated with or without tumor necrosis factor-alpha (TNF-alpha). We showed here that ginsenoside Rg1 can increase the basal and TNF-alpha-attenuated NO production in a dose-dependent manner. As little is known regarding the vascular molecular mechanism of ginsenoside Rg1 on HUVECs and proteomic technique has more advantages in molecular identification, we attempted to use proteomic analysis to explain vascular molecular mechanism of ginsenoside Rg1 on HUVECs. Proteomic analytical result showed that 21 protein spots were changed in TNF-alpha stimulated HUVECs, including 9 up-regulated spots, 11 down-regulated spots, and 1 spot detected in TNF-alpha stimulated group only. The expression level of proteins such as MEKK3, phosphoglycerate mutase was increased, and nitric-oxide synthase, mineralocorticoid receptor were decreased in TNF-alpha stimulated HUVECs, while ginsenoside Rg1 could prevent this change or reverse to some degree. This study suggested that NO production increased via ginsenoside Rg1 played an important role in the protective effect on TNF-alpha stimulated HUVECs and was helpful to deeply understand the active mechanism of ginsenoside Rg1 to HUVECs at the molecular level.
Beijing Institute of Radiation Medicine, Tai-Ping Road 27, Beijing, 100850, China.
Zeng-Chun
ZC
Ma
Yue
Y
Gao
Jie
J
Wang
Xue-Min
XM
Zhang
Sheng-Qi
SQ
Wang
D015153:Blotting, Western; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D016208:Databases, Factual; D015180:Electrophoresis, Gel, Two-Dimensional; D042783:Endothelial Cells / Q000737:chemistry* / Q000187:drug effects*; D036145:Ginsenosides / Q000494:pharmacology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007202:Indicators and Reagents; D009569:Nitric Oxide / Q000378:metabolism; D010455:Peptides / Q000737:chemistry; D011506:Proteins / Q000378:metabolism; D040901:Proteomics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013268:Stimulation, Chemical; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology*; D014471:Umbilical Veins / Q000737:chemistry / Q000166:cytology* / Q000187:drug effects*
D036145:Ginsenosides; D007202:Indicators and Reagents; D010455:Peptides; D011506:Proteins; D014409:Tumor Necrosis Factor-alpha; D009569:Nitric Oxide; C035054:ginsenoside Rg1