The role of TGF-beta 1/Smad3 signaling pathway and oxidative stress in the inhibition of osteoblast mineralization by copper chloride
文献类型： 外文期刊
第一作者： Qi, Yanping
作者： Qi, Yanping;Chen, Xuelong;Wang, Honghai;Qi, Yanping;Chen, Xuelong;Zhu, Yanzhu
作者机构：
关键词： CuCl(2)5H(2)O; Osteoblast mineralization; Oxidative stress; TGF-beta 1/Smad3 pathway
期刊名称：ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY （ 影响因子：3.292； 五年影响因子：3.162 ）
ISSN： 1382-6689
年卷期： 2021 年 84 卷
页码：
收录情况： SCI
摘要： To explore the relationship of oxidative stress and TGF-beta 1/Smad3 pathway in the inhibition of osteoblast mineralization by copper chloride (CuCl2), the osteoblasts were treated with CuCl2 (0, 50 mu M, 100 mu M, 150 mu M CuCl2 5H(2)O) for 24 h. We found that Cu impaired the osteoblast structure, inhibited the glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities, alkaline phosphatase (ALP) content, mRNA expression of collagen I (COL-I), osteocalcin (OCN), insulin-like growth factor I (IGF-I), bone morphogenetic protein-2 (BMP-2), transforming growth factor beta 1 (TGF-beta 1) and core-binding factor alpha 1 (Cbf alpha 1), promoted the reactive oxygen species (ROS) production, inactivated the TGF-beta 1/Smad3 pathway. It indicates that the inactivated TGF-beta 1/Smad3 pathway leads to osteoblast impairment by CuCl2. It will contribute to clarify the influence of CuCl2 on the osteoblast mineralization.
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