J Clin Periodontol:唾液MMP-8的分子形式和片段与牙周炎有关

2018-12-22 MedSci MedSci原创

本文旨在研究唾液基质金属蛋白酶(MMP)-8的分子形式与牙周炎的相关性。

本文旨在研究唾液基质金属蛋白酶(MMP)-8的分子形式与牙周炎的相关性。

通过使用具有计算机定量的western-immunoblots,从81名患有广泛性牙周炎的受试者,63名局部牙周炎的受试者和79名没有牙周袋的受试者的唾液样本中分析嗜中性和间充质型MMP-8同种型的分子形式,活化程度和片段化。此外,人重组proMMP-8在体外被密螺旋体胰蛋白酶样蛋白酶(Td-CTLP),次氯酸钠(NaOCl,1mM,氧化剂)或氨基苯基乙酸汞(APMA,1mM)活化。

结果:在牙周炎患者的唾液中,MMP-8以多种形式存在,即嗜中性粒细胞和间充质型MMP-8的复合物,活性和前体形式,尤其是20-27kDa片段。这些片段的数量在局部和全身形式的牙周炎中均升高。此外,测试的活化剂(Td-CTLP,NaOCl和APMA)激活无活性的proMMP-8,导致体外产生20-27kDa的片段,并且T.denticola的唾液浓度与片段化MMP-8的唾液水平显着相关。

目前的结果表明,在牙周炎的发展和进展过程中,MMP-8表现为活化和片段化,并且密螺旋体蛋白酶最可能在该级联中发挥作用。

原始出处:

Ulvi K. Gürsoy,et al.Molecular forms and fragments of salivary MMP‐8 in relation to periodontitis.Journal of  Clinical Periodontology.2018 Decemember. Doi:10.1111/jcpe.13024

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    2019-03-25 feather89
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    2018-12-22 天地飞扬

    了解一下,谢谢分享!

    0

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    2018-12-22 lietome2

    认真学习,不断进步,把经验分享给同好。点赞了!

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