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论文摘要

甲状旁腺相关蛋白对鼠胚髁突软骨细胞增殖和分化的调控

Regulation of PTHrP in Proliferation and Differentiation of Chondrocytes of Condyle in Fetal Mouse

作者:刘来奎;江宏兵;殷新民;李晓箐;易新竹

Author:LIU Lai-kui1, JIANG Hong-bing1, YIN Xin-min1, LI Xiao-qing2, YI Xin-zhu2

收稿日期:2006-06-25          年卷(期)页码:2006,24(03):206-

期刊名称:华西口腔医学杂志

Journal Name:West China Journal of Stomatology

关键字:甲状旁腺相关蛋白,甲状旁腺相关蛋白受体,髁突,软骨,

Key words:parathyroid hormone-related protein,parathyroid hormone receptor,condyle,cartilage,

基金项目:

国家自然科学基金资助项目(30371555)

中文摘要

目的 探讨甲状旁腺相关蛋白(PTHrP)对鼠胚髁突软骨细胞增殖和分化的影响。方法 在体外分离培养鼠胚髁突软骨细胞的基础上,观察PTHrP对其软骨结节形成、碱性磷酸酶(ALP)活性等的影响。结果 研究发现加入浓度分别为0.01 nmol/L、0.1 nmol/L、1 nmol/L、10 nmol/L的PTHrP后,0.01 nmol/L组与对照组相比,形成的软骨结节数量在统计学上无显著性差异(P>0.05),而软骨结节数量从0.1 nmol/L组开始与对照组相比明显增加,统计学上 有显著性差异(P0.05)。结论 PTHrP通过其受体具有促进髁突软骨细胞增殖和分化的作用,其调控机制与其在生长板软骨细胞及下颌膜内成骨中的作用相似。

英文摘要

Objective To investigate the regulatory mechanism of parathyroid hormone-related protein(PTHrP) in proliferation and differentiation of chondrocytes of condyle in fetal mouse. Methods Chondrocytes of condyle in fetal mouse were separated and cultured in vitro, the influence of PTHrP on proliferation and differentiation was observed. Results After two weeks′ culture in 0.01 nmol/L, 0.1 nmol/L, 1 nmol/L, 10 nmol/L human PTHrP, there was significant difference in the number of cartilage nodule formed between experiment group and control group (P0.05). Alkaline phosphatase(ALP) activity was significantly intensified in experiment group and control group(P

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