J Periodontol:牙龈卟啉单胞菌通过释放可溶性因子抑制营养细胞的侵袭

2017-07-31 MedSci MedSci原创

牙周炎是一种常见的慢性炎症性紊乱,影响着牙周支持组织的健康。研究发现,患有牙周炎的孕期女性妊娠并发症的风险明显增加,然而,其病理生理学特征到目前为止还不清楚。另外,在一些患病孕妇的胎盘中检测出牙龈卟啉单胞菌(P.g)的存在。因此,这篇研究的目的是为了评估P.g释放的可溶性因子对体外培养的营养细胞侵袭的影响,以此阐明牙周炎对妊娠产生的远隔效应。

牙周炎是一种常见的慢性炎症性紊乱,影响着牙周支持组织的健康。研究发现,患有牙周炎的孕期女性妊娠并发症的风险明显增加,然而,其病理生理学特征到目前为止还不清楚。另外,在一些患病孕妇的胎盘中检测出牙龈卟啉单胞菌(P.g)的存在。因此,这篇研究的目的是为了评估P.g释放的可溶性因子对体外培养的营养细胞侵袭的影响,以此阐明牙周炎对妊娠产生的远隔效应。永生化的营养细胞系HTR-8/Svneo在上清液含有牙龈卟啉单胞菌(PG-sup)的培养基中进行培养,并置于培养板上或通过悬吊评估细胞的活性、凋亡和形态变化。随后,细胞置于基质胶培养板上检测其细胞侵袭情况。另外,通过光学显微镜、立体显微镜和透射电子显微镜评估细胞形态变化。结果显示,在培养24小时后,PG-sup呈剂量依赖的方式抑制细胞侵袭。虽然PG-sup对细胞活性和凋亡的细胞计数没有影响,但却明显抑制悬吊培养中球形结构的形成。存在PG-sup的情况下,球状体细胞变得易碎,形状不规则。透射电子显微镜显示,细胞内空间增加并且微绒毛变短。结论:PG-sup抑制营养细胞的侵袭并且不是通过直接的细胞毒性影响营养细胞的形态变化。这些结果表明,牙龈卟啉单胞菌通

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    2018-05-31 feather89
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    2017-08-01 清风拂面

    学习了,谢谢分享

    0

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    2017-08-01 184****9840

    学习了受益匪浅

    0

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    2017-07-31 三生有幸9135

    学习一下谢谢分享

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    2017-07-31 1dd8c52fm63(暂无匿称)

    学习学习,继续关注

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    2017-07-31 榄枷檬

    牙周炎是一种常见的慢性炎症性紊乱,影响着牙周支持组织的健康。

    0

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