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氢气减弱脂多糖对人牙周膜细胞成骨能力的抑制

Hydrogen attenuates the inhibition of P.g-LPS on osteogenic capacity of huma periodental ligament cells
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摘要 目的:研究氢气(H_2)对牙龈卟啉单胞菌脂多糖(P.g-LPS)刺激的人牙周膜成纤维细胞(hPDLCs)成骨能力的影响。方法:取生长状态良好的hPDLCs分为对照组、成骨诱导组、成骨诱导+LPS(100 ng/ml)刺激组及成骨诱导+H,(3%)+LPS(100 ng/ml)组培养3周后行茜素红(ARS)染色,另取上述各组处理培养7 d的细胞提取RNA进行RT^DCR检测比较碱性磷酸酶(ALP)、骨钙素(OC)的表达差异。结果:hPDLCs成骨、成脂诱导后具有定向分化能力。钙化物含量LPS刺激组少于成骨诱导组(P<0.01);H_2+LPS处理组多于LPS刺激组(P<0.05)。LPS刺激组细胞ALP表达降低(P<0.001),OC表达降低(P<0.001);与LPS刺激组相比H_2+LPS处理组细胞ALP表达增高(P<0.05),OC表达增高(P<0.05)。结论:高浓度P.g-LPS能够抑制hPDLC的成骨能力,而氢气能够一定程度上改善P.g-LPS对hPDLC成骨能力的抑制作用。 Objective:To observe the effects of hydrogen on osteogenic capacity of human periodontal ligament cells(hPDLCs) stimulated with P.g-LPS.Methods:hPDLCs were cultured and divided into 4 groups:control(C) group,osteogenic induction(0I)group,OI + 100 ng/ml LPS(OILPS) group and OIPLS + 3%H_2(H_2OIPLS) group,and treated respectively.Alizarin red staining(ARS) was carried out 3 weeks after treatment.ALP and OC mRNA expression of the cells was examined by RT-PCR after 7-d treatment.Results:LPS decreased A value of ARS(P〈0.01),ALP mRNA expression(P〈0.001) and OC mRNA expression(P〈0.001) of the cells.H_2 increased the A value(P〈0.05),ALP mRNA expression(P〈0.01) and OC mRNA(P〈0.01) of the cells treated by LPS.Conclusion:High concentration of P.g-LPS can inhibit osteogenic capacity of hPDLCs,while hydrogen can impair the P.g-LPS induced suppression of hPDLC's osteogenesis.
出处 《实用口腔医学杂志》 CAS CSCD 北大核心 2015年第6期797-800,共4页 Journal of Practical Stomatology
关键词 氢气 人牙周膜成纤维细胞(h PDLCs) 成骨能力 P.g-LPS 碱性磷酸酶(ALP) 骨钙素(OC) Hydrogen Human periodontal ligament cells(h PDLCs) Osteogenic capacity P.g-LPS Alkaline phosphatase(ALP) Osteocalcin(OC)
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参考文献13

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