静水压对人椎间盘髓核细胞形态及基质表达的影响

被引:5
作者
陈江
柳根哲
徐林
李春根
孙旗
乔卫平
朱志强
机构
[1] 北京中医药大学东直门医院骨科
关键词
静水压; 髓核细胞; 形态学; 蛋白多糖; 组织构建细胞学实验;
D O I
暂无
中图分类号
R681.53 [];
学科分类号
摘要
背景:加载在椎间盘上的重力引起的静态压力刺激是椎间盘细胞代谢的重要调节因素。目的:观察静水压对体外单层培养人椎间盘髓核细胞形态学及基质代谢的影响。方法:在静水压加载系统中对体外单层培养的传4代人髓核细胞施以0.3,0.7,3MPa的静压,分别加压30,60,90,120min,以常压0.1MPa为对照。结果与结论:①髓核细胞形态:在静水压干预下细胞体积均变小。0.3,0.7MPa静水压下轻微缩小,细胞形态相对完整;3MPa静水压下缩小最明显,且细胞形态不完整。②髓核细胞存活率:在持续静水压刺激下开始的30min,不论压力大小存活率都偏低,在0.3,0.7MPa时随作用时间延长而增加或维持稳定,细胞增殖逐渐增强,在3MPa时随时间趋于下降,最终细胞总体数量减少。③髓核细胞蛋白多糖:各组表达量随时间增加逐渐增加,当持续加压120min时,在0.3,0.7MPa静水压下合成量呈高表达状态,在0.1,3MPa静压表达相对较少。表明静水压会对髓核细胞形态学、存活率及基质表达产生影响。
引用
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页码:2281 / 2286
页数:6
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