Protective effect of tetrahydroxystilbene glucoside against hydrogen peroxide-induced dysfunction and oxidative stress in osteoblastic MC3T3-E1 cells.
Oxidative stress can induce apoptosis and decrease activities of osteoblasts. 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (TSG), is a potent antioxidant derived from a Chinese herb Polygonum multiflorum Thunb. To evaluate the protective effect provided by TSG to osteoblastic MC3T3-E1 cells, the cells were pretreated with TSG for 24h before being treated with 0.3mM hydrogen peroxide (H(2)O(2)) for 24 h, then some markers of osteoblast function and oxidative damage of the cells were examined. Our data demonstrated that TSG significantly (P< 0.05) increased cell survival, alkaline phosphatase (ALP) activity, calcium deposition, and the mRNA expression of ALP, collagen I (COL-I) and osteocalcin (OCN) in the presence of H(2)O(2). In addition, TSG decreased the production of receptor activator of nuclear factor-κB ligand (RANKL), interleukin-6 (IL-6), intracellular reactive oxygen species and malondialdehyde (MDA) of osteoblastic MC3T3-E1 cells induced by H(2)O(2). Taken together, these results demonstrated that the protective effect provided by TSG to osteoblastic MC3T3-E1 cells was mediated, at least in part, via inhibition of the release of bone-resorbing mediators and oxidative damage of the cells. Our results indicated that TSG may be effective in providing protection against osteoporosis associated with oxidative stress.
Institute of Orthopedic Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, People's Republic of China.
Jin-Kang
JK
Zhang
Liu
L
Yang
Guo-Lin
GL
Meng
Jing
J
Fan
Jian-Zong
JZ
Chen
Qi-Zhen
QZ
He
Shi
S
Chen
Jin-Zhu
JZ
Fan
Zhuo-Jing
ZJ
Luo
Jian
J
Liu
D016475:3T3 Cells; D000818:Animals; D002470:Cell Survival / Q000187:drug effects / Q000502:physiology; D019610:Cytoprotection / Q000187:drug effects* / Q000502:physiology; D005960:Glucosides / Q000494:pharmacology*; D006861:Hydrogen Peroxide / Q000633:toxicity*; D051379:Mice; D010006:Osteoblasts / Q000187:drug effects* / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects* / Q000502:physiology; D013267:Stilbenes / Q000494:pharmacology*
D005960:Glucosides; D013267:Stilbenes; C093026:2,3,5,4'-tetrahydroxystilbene 2-O-glucopyranoside; D006861:Hydrogen Peroxide