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- 2018
脂多糖促进牙周膜间充质干细胞组蛋白去甲基化酶HR表达的研究
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Abstract:
摘要 目的:脂多糖是否对牙周膜间充质干细胞(periodontal ligment stem cells, PDLSCs)中组蛋白去甲基化酶相关基因表达存在调控功能。方法:利用不同剂量的脂多糖对牙周膜干细胞进行刺激处理;在mRNA水平利用实时定量RT-PCR (real time reverse transcription-polymerase chain reaction,qRT-PCR)检测组蛋白去甲基化酶相关基因的表达。qRT-PCR结果显示HR(hairless homolog)基因在脂多糖刺激后24 h和48 h结果显示,能促进HR的表达,其表达升高的水平与脂多糖刺激时间有相关性。1、5和10 mg/L脂多糖在作用48 h后都能促进HR的表达,其表达升高的水平与脂多糖刺激剂量有相关性。10 μg/mL脂多糖抑制牙周膜干细胞体外矿化能力。结论:在牙周膜干细胞中脂多糖对牙周膜干细胞组蛋白去甲基化酶HR的表达有促进作用
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