miR-20a 对人炎症牙周膜干细胞成骨分化能力的影响

摘要

Objective:To study the effects of miR-20a on the osteogenic differentiation potential of inflammatory periodontal liga-ment cells(IPDLSCs).Methods:Cells were isolated and cultured from the healthy and inflammatory periodontal ligament samples (HPDLSCs and IPDLSCs)respectively.miR-20a expression was analyzed by qRT-PCR.Alizarin red staining,Western blot and PCR were used to evaluate the osteogenic differentiation potential of IPDLSCs after transient transinfection of miR-20a mimics or inhib-itor.Results:miR-20a expression in IPDLSCs was lower than that in HPDLSCs,and the osteogenic differentiation potential of IP-DLSCs were promoted by miR-20a mimics,and reduced by miR-20a inhibitor.Conclusion:The miR-20a in IPDLSCs was down reg-ulated.miR-20a can promote the osteogenic differentiation potential of IPDLSCs.%目的：研究 miR-20a 对人炎症牙周膜干细胞成骨分化能力的影响。方法：分离培养人牙周膜干细胞后用 qRT-PCR检测 miR-20a 的表达，并且在瞬时转染 miR-20a mimics 和 inhibitor 后成骨诱导，用茜素红染色，Western Blot 和 PCR 的方法检测成骨能力的改变。结果：人炎症牙周膜干细胞中 miR-20a 表达降低，转染 mimics 后成骨能力升高，转染 inhibitor 后成骨能力降低。结论：miR-20a 可以促进人炎症牙周膜干细胞成骨分化。