申琳 刘文佳 杨振华 马小杰 李彦浇 金钫.静态压力对人牙周膜干细胞凋亡相关蛋白表达的影响[J].,2015,15(12):2213-2218 |
静态压力对人牙周膜干细胞凋亡相关蛋白表达的影响 |
Effect of Static Pressure on the Expression of Apoptosis Related Protein inHPDLSC |
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DOI: |
中文关键词: 静态压力 人牙周膜干细胞 细胞凋亡 半胱氨酸天冬氨酸蛋白酶-3 半胱氨酸天冬氨酸蛋白酶-8 |
英文关键词: Static pressure HPDLSC Apoptosis Caspase-3 Caspase-8 |
基金项目:国家自然科学基金项目(81171001) |
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中文摘要: |
目的:探讨体外模拟正畸牙移动过程中机械压力对人牙周膜干细胞(HPDLSC)凋亡相关蛋白表达的影响。方法:将体外培养
的HPDLSC 分别在自行研发的加压力装置中进行100、200 Kpa 加压1、6 和12 h后,检测和比较其凋亡相关蛋白caspase-3 和
caspase-8 的表达;流式细胞仪检测其凋亡状态。结果:100 Kpa 加压1 h的HPDLSCs 中caspase-3 和caspase-8 的蛋白表达及其凋
亡水平均显著高于对照组(P<0.05),而加力12 h的HPDLSCs 中caspase-3 和caspase-8 的蛋白表达和凋亡水平与对照组比较无统
计学差异(P>0.05)。200 Kpa 加力1 h的HPDLSCs中caspase-3 和caspase-8 的蛋白表达和凋亡水平均显著低于对照组(P<0.05),而
加力12 h的HPDLSCs 中caspase-3 和caspase-8 的蛋白表达和凋亡水平与对照组比较无统计学差异(P>0.05)。结论:在体外模拟
正畸牙移动过程中,不同强度静态压力作用不同时间对人牙周膜干细胞的凋亡作用不同,100 Kpa 静态加力加压1 h可更有效地
促进人牙周膜干细胞的凋亡,而200 Kpa 静态加力加压1 h可抑制人牙周膜干细胞的凋亡。 |
英文摘要: |
Objective:To investigate the effect of static pressure on the expression of apoptosis related protein in HPDLSCs.Methods:HPDLSCs cultured in vitro were incubated under continuous static pressure of 100 Kpa and 200 Kpa for 1 h, 6 h and 12 h. The
expression of apoptosis related protein caspase-3 and caspase-8 in HPDLSCs were tested by Western Blot. The apoptosis level of
HPDLSCs was determined by Flow cytometry.Results:Under the static pressure of 100 Kpa for 1 h, both the expressions of the apoptosis
related protein caspase-3 and caspase-8 and the level of apoptosis increased more significantly than that of the controls (P<0.05), but no
statistical significance was found when the static pressure continued for 12 h (P>0.05). Under the static pressure of 200 Kpa for 1 h, both
the expressions of the apoptosis related protein caspase-3 and caspase-8 and the level of apoptosis were lower than that of the controls
(P<0.05), but no statistical significance was found when the static pressure continued for 12 h (P>0.05).Conclusion:Continuous static
pressure of 100 kpa for 1 h promotes apoptosis, while continuous static pressure of 200 kpa for 1 h inhibits apoptosis. |
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