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

2018-12-30 MedSci MedSci原创

锶(Sr)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有用。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)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有用。本研究探讨了高浓度Sr对PDLCs体外增殖和成骨行为的影响。

原代人PDLCs在MEM + 10%FBS中培养,无(Ctrl)或四种不同浓度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培养的牙周韧带细胞显示增加的扩散面积(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。与Ctrl,Sr1,Sr2相比,Sr4还导致较低的ALP活性(从7天开始),ALP(从3天开始)和RUNX2(在第7天和第14天)基因表达,以及更明显的矿化结节形成。

牙周韧带细胞对Sr4反应增强,体外细胞增殖和成骨行为增加。

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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    2019-07-02 仁心济世
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    2019-11-29 xqptu
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    2018-12-31 zhaojie88
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    2018-12-31 villahu

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