RRC ID 42554
著者 Lee DH, Lim BS, Lee YK, Yang HC.
タイトル Effects of hydrogen peroxide (H2O2) on alkaline phosphatase activity and matrix mineralization of odontoblast and osteoblast cell lines.
ジャーナル Cell Biol Toxicol
Abstract Hydrogen peroxide (H(2)O(2)), an oxidizing agent, has been widely used as a disinfectant. Recently, because of its reactive properties, H(2)O(2) has also been used as a tooth bleaching agent in dental care. This is a cause for concern because of adverse biological effects on the soft and hard tissues of the oral environment. To investigate the influence of H(2)O(2) on odontoblasts, the cells producing dentin in the pulp, we assessed cellular viability, generation of reactive oxygen species (ROS), alkaline phosphatase (ALP) activity, and nodule formation of an odontoblastic cell line (MDPC-23) after treatment with H(2)O(2), and compared those with the effects on preosteoblastic MC3T3-E1 cells. Cytotoxic effects of H(2)O(2) began to appear at 0.3 mmol/L in both MDPC-23 and MC3T3-E1 cells. At that concentration, the accumulation of intracellular ROS was confirmed by a fluorescent probe, DCFH-DA. Although more ROS were detected in MDPC-23, the increasing pattern and rate are similar between the two cells. When the cells were treated with H(2)O(2) at concentrations below 0.3 mmol/L, MDPC-23 displayed a significant increase in ALP activity and mineralized bone matrix, while MC3T3-E1 cells showed adverse effects of H(2)O(2). It is known that ROS are generally harmful by-products of aerobic life and represent the primary cause of aging and numerous diseases. These data, however, suggest that ROS can induce in vitro cell differentiation, and that they play a more complex role in cell physiology than simply causing oxidative damage.
巻・号 22(1)
ページ 39-46
公開日 2006-1-1
DOI 10.1007/s10565-006-0018-z
PMID 16463018
MeSH Alkaline Phosphatase / metabolism* Animals Bone Matrix / drug effects* Bone Matrix / enzymology Bone Matrix / metabolism Calcification, Physiologic / drug effects* Cell Line Cell Survival / drug effects Hydrogen Peroxide / pharmacology* Mice Odontoblasts / drug effects* Odontoblasts / enzymology Odontoblasts / metabolism Osteoblasts / drug effects* Osteoblasts / enzymology Osteoblasts / metabolism Oxidative Stress / drug effects Reactive Oxygen Species / metabolism
IF 6.284
引用数 131
WOS 分野 TOXICOLOGY CELL BIOLOGY
リソース情報
ヒト・動物細胞 MC3T3-E1(RCB1126)