期刊
CELLULAR IMMUNOLOGY
卷 268, 期 2, 页码 112-116出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.cellimm.2011.02.002
关键词
Linarin; Buddleja officinalis; Oxidative stress; Osteoblast differentiation
资金
- Ministry of Education, Science and Technology [2009-0076990]
The flowers and leaves buds of Buddleja officinalis MAXIM (Buddlejaceae) are used to treat eye troubles, hernia, gonorrhea and liver troubles in Asia. To elucidate the protective effects of linarin isolated from B. officinalis on the response of osteoblast to oxidative stress, osteoblastic MC3T3-E1 cells were pre-incubated with linarin for 1 h before treatment with 0.3 mM H2O2 for 48 h, and markers of osteoblast function and oxidative damage were examined. Linarin significantly (P < 0.05) increased cell survival, alkaline phosphatase (ALP) activity, collagen content, calcium deposition, and osteocalcin secretion and decreased the production of receptor activator of nuclear factor-kB ligand (RANKL), protein carbonyl (PCO), and malondialdehyde (MDA) of osteoblastic MC3T3-E1 cells in the presence of hydrogen peroxide. These results demonstrate that linarin can protect osteoblasts against hydrogen peroxide-induced osteoblastic dysfunction and may exert anti-resorptive actions, at least in part, via the reduction of RANKL and oxidative damage. (C) 2011 Elsevier Inc. All rights reserved.
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