J Periodontal Res:疏水和亲水钛钉骨再生早期阶段蛋白的表达

2018-03-31 MedSci MedSci原创

有大量证据表明,在骨结合的早期阶段,与疏水性(SLA)表面相比,中度粗糙亲水性(SLActive)表面可加速骨生成并增加骨与种植体的接触。然而,关于影响的分子机制知之甚少,表面化学改性增加了亲水性决定了骨结合。这项研究的目的是首次描述在SLA和SLActive钛钉的早期骨结合阶段期间用于引导骨再生的蛋白质和相关信号传导通路的表达。

有大量证据表明,在骨结合的早期阶段,与疏水性(SLA)表面相比,中度粗糙亲水性(SLActive)表面可加速骨生成并增加骨与种植体的接触。然而,关于影响的分子机制知之甚少,表面化学改性增加了亲水性决定了骨结合。这项研究的目的是首次描述在SLA和SLActive钛钉的早期骨结合阶段期间用于引导骨再生的蛋白质和相关信号传导通路的表达。

将一个内径为5.0mm,高度为3.0mm的SLA和1个SLActive钛钉固定在9只6月龄雄性新西兰兔的顶骨上。三只动物随机在第4,7和14天处死,并且取钛钉周围新形成的组织,用液相色谱 - 质谱/质谱分析。 用STRING和KEGG数据库分析Gene Ontology和通路。

结果:在所有愈合时间,两组之间检测到几种不同的通路变化。与两个表面相关的骨愈合反应的主要差异与参与调节炎症反应,成骨细胞前体分化和骨形成的通路有关。在第7天,两组中均观察到最高量的蛋白质和最高的细胞活性,尽管在SLActive样本中观察到更复杂和明确的细胞代谢和信号转导蛋白质组。

第一个描述在引导骨再生和骨整合的早期愈合阶段表达的蛋白质组的研究。对亲水组早期成骨反应增强和炎症反应减少。还需要更多研究证实这些发现,并探讨不同钛表面对骨形成过程中发生的级联事件的分子影响。

原始出处:

E. Calciolari, et al. Protein expression during early stages of bone regeneration under hydrophobic and hydrophilic titanium domes. A pilot study. Journal of Periodontal Research. 2018 April. doi:10.1111/jre.12498

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    2018-10-04 feather89
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    2018-10-06 30397613
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    2018-04-02 lsj630