J Periodontal Res:锶促进牙周膜细胞体外增殖和成骨行为的研究

2018-11-21 MedSci MedSci原创

锶(Sr)可以增强某些多能细胞的成骨分化。已知牙周膜细胞(PDLC)是多能的,并且Sr可能在牙周骨组织工程中发挥作用。本研究探讨了高浓度Sr对PDLCs体外增殖和成骨行为的影响。

锶(Sr)可以增强某些多能细胞的成骨分化。已知牙周膜细胞(PDLC)是多能的,并且Sr可能在牙周骨组织工程中发挥作用。本研究探讨了高浓度Sr对PDLCs体外增殖和成骨行为的影响。

方法:人原代PDLCs在MEM + 10%FBS中培养,不含(Ctrl)或含有四种不同浓度的Sr:Sr1,11.3×10-3mg / L,人血清生理水平; Sr2,13 mg / L,雷奈酸锶治疗后的典型人血清水平; Sr3,130mg / L,Sr4,360mg / L.扩散区(2,4,6,24小时),增殖率(1,3,7天),成骨行为(碱性磷酸酶 - ALP活性,7天和14天;成骨基因表达,ALP,Runt相关转录因子2-RUNX2,骨桥蛋白-OPN,骨钙蛋白-OCN和骨保护素-OPG,1,3,7,14,21天)和PDLC的矿化结节(14和21天)的形成被评估。使用ANOVA测试对组数据和周期进行数据比较。

结果:与Ctrl,Sr1,Sr2和Sr3相比,用Sr4培养的牙周膜细胞增加了扩散面积(4小时后),增殖率(从3天开始)和OCN和OPN(从7天开始)基因表达。Sr4还会导致较低的ALP活性(从7天开始),ALP(从3天开始)和RUNX2基因表达(在第7天和第14天),以及更明显的矿化结节形成。

Sr4可以促进牙周韧带细胞的体外细胞增殖和成骨行为。

原始出处:

Carolina Bizelli‐Silveira,et al.Strontium enhances proliferation and osteogenic behavior of periodontal ligament cells in vitro.Journal of Periodontal Research.2018 Decemember. Doi:10.1111/jre.12601

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    2019-03-13 xqptu
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    2019-08-09 feather89
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    2018-11-23 zhaojie88
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    2018-11-23 villahu

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