骨细胞力学信号转导及基因表达

被引:10
作者
张成俊
夏亚一
王常德
机构
[1] 兰州大学第二医院骨科研究所
关键词
骨细胞; 力学信号; 识别信号; 基因表达;
D O I
暂无
中图分类号
R68 [骨科学(运动系疾病、矫形外科学)];
学科分类号
100220 [骨科学];
摘要
机械应力在骨形成和骨重塑中起重要调节作用。机械性刺激影响骨细胞的增殖和分化,首要条件是传导机械信号进入细胞并被识别,涉及机械性刺激的感应、信号分子的产生、牵张激活钙通道、整合素-细胞骨架-核基质结构通路等,最终在细胞核中调节活化基因的表达。机械信号的识别本身受激素、细胞外基质和机械刺激模式等调节。应力信号识别后使应力反应元件等敏感基因活化,引起骨细胞基因表达的明显变化,主要是基因翻译的酶、细胞因子、转录因子和骨基质蛋白。感应信号如何识别转导和敏感基因活化表达的确切机制仍需论证。该文就这一领域近年研究现状和发展方向作一综述。
引用
收藏
页码:182 / 186
页数:5
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