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釉基质蛋白影响人牙囊细胞生物学特性的实验研究

The effects of enamel matrix proteins on biological characteristics of human dental follicle cells in vitro
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摘要 目的:观察釉基质蛋白(EMPs)对牙囊细胞(HDFC)增殖及碱性磷酸酶(ALP)活性的影响。方法:利用酶消化联合组织块培养法获得HDFC。以一定浓度的EMPs作用于牙囊细胞,通过四唑盐比色法和酶动力学方法检测对细胞增殖及ALP活性的变化。结果:EMPs对HDFC具有促增殖作用,其中100mg/L的EMPs的促增殖作用最显著,其促增殖作用可持续至第7天;100mg/L的EMPs可上调ALP活性。结论:EMPs可促进HDFC增殖,影响其ALP活性,可能在牙囊细胞的诱导分化中起重要作用。 Objective: To investigate the efects of enamel matrix proteins(EMPs) on proliferation and alkaline phosphotase (ALP) activity of human dental follicle cells(HDFCs) in vitro. Methods:HDFCs were dissected and cultured by digestion with bacterial collagenase. MTY method and enzyme kinetics method were used to examine the proliferation and ALP activity of HDFCs treated with EMPs. Results :EMPs at 25 -200 mg/L increased the proliferation of HDFCs and EMPs at 100 mg/L showed the strongest effects in 7-day-cuhure. EMPs at 100 mg/L increased ALP activity of HDFCs in 3- and 7-day cultures. Conclusion:EMPs may stimulate the proliferation and the ALP activity of HDFCs.
出处 《实用口腔医学杂志》 CAS CSCD 北大核心 2005年第6期829-831,共3页 Journal of Practical Stomatology
基金 广东省科技计划项目(C30704)基金项目名称:牙周组织初级结构体外构建的研究
关键词 牙囊细胞 釉基质蛋白 增殖 碱性磷酸酶 Dental follicle cells Enamel matrix proteins Proliferation Alkaline phosphotase
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