项目名称: Ferroportin1(FPN1)基因对破骨细胞分化和功能的调控及机制研究
项目编号: No.81501843
项目类型: 青年科学基金项目
立项/批准年度: 2016
项目学科: 医药、卫生
项目作者: 周剑
作者单位: 安徽医科大学
项目金额: 18万元
中文摘要: 骨质疏松是全球性的人类健康问题,但其病因、形成机制等尚未完成阐明。最新文献表明铁元素对于调节骨代谢平衡有重要的作用。Ferroportin1(FPN1)是目前发现的破骨细胞分化过程中内唯一排出铁的通道蛋白,对调控破骨细胞内铁含量有重要作用。然而FPN1是否对破骨细胞的分化和功能有调控作用及可能的机制尚无人报道。课题组在扎实的前期工作和合理的科学假设上,认识到了FPN1对于破骨细胞可能有重要的调控作用。因此我们拟在破骨细胞内特异性沉默或过表达FPN1基因,运用RT-PCR,Western blot,免疫染色等,研究不同组别的破骨细胞分化及功能的改变,并结合前期研究成果,探寻ROS, CREB/PGC-1β等信号通路的变化,寻找可能的作用机制,为研究骨质疏松的病因提供新的思路。
中文关键词: 破骨细胞;铁过载;膜铁转运蛋白;骨质疏松;活性氧
英文摘要: Osteoporosis is a human health problem worldwide,but its pathogenesis and mechanism are not fully understood.The latest literaturesuggest that iron plays an important role in regulating the balance of bone metabolism, Ferroportin1(FPN1) is the only discharge iron channel protein in osteoclasts, FPN1 plays an important role in reagulation of iron balance in osteoclasts. However,effects and mechanism of FPN1 on osteoclast regulation are not reported yet. Based on solid previous work and reasonable hypothesis,we realize the FPN1 may play an important role in the regulation of bone metabolism and osteoclasts.Therefore,We plan to konckdown or overexpress FPN1 gene in osteoclasts,,then determinate the differentiation and function of osteoclasts by using RT-PCR, Western blot, immune staining techniques and find changes of ROS, CREB/PGC-1β signaling pathway under FPN1 knockout condition,looking for the possible mechanism. We try to provide new ideas for treatment and prevention of osteoporosis.
英文关键词: Osteoclast;Iron Overload;Ferroportin1;Osteoporosis;ROS