[1]杨全增,张成俊,丁宁,等. 不同加载时间流体剪切力对成骨细胞中基质金属蛋白酶-1和基质金属蛋白酶抑制剂-1表达的影响[J].中国医学物理学杂志,2018,35(1):102-105.[doi:DOI:10.3969/j.issn.1005-202X.2018.01.018]
 YANG Quanzeng,ZHANG Chengjun,DING Ning,et al. Effects of loading time of fluid shear stress on expression of matrix metalloproteinase-1 and tissue inhibitor of matrix metalloproteinase-1 in osteoblasts[J].Chinese Journal of Medical Physics,2018,35(1):102-105.[doi:DOI:10.3969/j.issn.1005-202X.2018.01.018]
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 不同加载时间流体剪切力对成骨细胞中基质金属蛋白酶-1和基质金属蛋白酶抑制剂-1表达的影响()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
35卷
期数:
2018年第1期
页码:
102-105
栏目:
医学生物物理
出版日期:
2018-02-07

文章信息/Info

Title:
 Effects of loading time of fluid shear stress on expression of matrix metalloproteinase-1 and tissue inhibitor of matrix metalloproteinase-1 in osteoblasts
文章编号:
1005-202X(2018)01-0102-04
作者:
 杨全增12张成俊12丁宁12李忠浩12夏亚一12
 1.兰州大学第二医院骨科, 甘肃 兰州 730000; 2.甘肃省骨关节疾病研究重点实验室, 甘肃 兰州 730000
Author(s):
 YANG Quanzeng12 ZHANG Chengjun12 DING Ning12 LI Zhonghao12 XIA Yayi12
 1. Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou 730000, China; 2. Gansu Key Laboratory of Orthopaedics, Lanzhou 730000, China
关键词:
 流体剪切力MC3T3-E1 细胞基质金属蛋白酶基质金属蛋白酶抑制剂
Keywords:
Keywords: fluid shear stress MC3T3- E1 cell matrix metalloproteinase tissue inhibitors of matrix metalloproteinase
分类号:
R35
DOI:
DOI:10.3969/j.issn.1005-202X.2018.01.018
文献标志码:
A
摘要:
 【摘 要】 目的:研究加载不同时间流体剪切力对成骨细胞基质金属蛋白酶-1(MMP-1)和基质金属蛋白酶抑制因子(TIMP-1)表达的影响。 方法:利用自行设计的平行平板流体剪切力加载装置,对MC3T3-E1成骨细胞施加12 dyn/cm2流体剪切力0、15、30、45、60 min,采用蛋白免疫印记实验检测MMP-1和其抑制剂TIMP-1的表达水平。 结果:对体外培养的MC3T3-E1细胞加载12 dyn/cm2流体剪切力,随着加载时间的延长,MMP-1表达上调,TIMP-1表达水平下调,在45 min左右达到高峰。 结论:加载不同时间的12 dyn/cm2流体剪切力能够上调MC3T3-E1成骨细胞MMP-I的表达,下调TIMP-1的表达,加载45 min最合适。
Abstract:
Abstract: Objective To discuss the variations of the expression of matrix metalloproteinase-1 (MMP-1) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) in osteoblasts with the increasing loading time of fluid shear stress (FSS). Methods MC3T3-E1 cells were subjected to FSS (12 dyn/cm2) using a parallel plate flow system for 0, 15, 30, 45, 60 min. The expression level of MMP-1 and its inhibitor TIMP-1 were detected by Western blotting. Results FSS of 12 dyn /cm2 was applied to the MC3T3-E1 cells cultured in vitro. With the increase of loading time, the expression of MMP-1 was up-regulated, while the expression of TIMP-1 was down-regulated. Forty-five minutes after loading, the expression of MMP-1 was the maximum and that of TIMP-1 reached the minimum. Conclusion Loading 12 dyn /cm2 FSS can promote the expression of MMP-1, and down-regulates the expression of TIMP-1 in MC3T3-E1 cells. The optimal loading time of FSS is 45minutes.

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备注/Memo

备注/Memo:
 【收稿日期】2017-09-17
【基金项目】国家自然科学基金(81672207);甘肃省青年科技研究基金(2015GS05051)
【作者简介】杨全增,硕士研究生,研究方向:细胞生物力学、关节外科,E-mail: yangqz2015@126.com
【通信作者】夏亚一,博士,主任医师,教授,研究方向:关节外科、生物材料、细胞生物力学,E-mail: xiayayi@126.com
更新日期/Last Update: 2018-01-25