J Clin Periodontol:成纤维细胞VEGF受体1或是牙周炎新的治疗靶点

2017-11-05 MedSci MedSci原创

细胞外基质的降解是牙周炎发生和进展的一个表现及原因。为了对抗这种病理生理机制,本研究旨在鉴定牙周炎进展中促进牙周炎相关成纤维细胞(PAFs)与正常牙龈成纤维细胞的基因表达谱,以确定其分子库,并将其用于牙周炎的治疗干预。使用少量微阵列结合三维(3D)体外培养模型,整合牙周炎的某些方面进行探索性分析,基因表达分析表征PAFs最初的特点,然后体外靶向基因下调和药理干预。此外,使用免疫组织化学分析组织标本

细胞外基质的降解是牙周炎发生和进展的一个表现及原因。为了对抗这种病理生理机制,本研究旨在鉴定牙周炎进展中促进牙周炎相关成纤维细胞(PAFs)与正常牙龈成纤维细胞的基因表达谱,以确定其分子库,并将其用于牙周炎的治疗干预。

使用少量微阵列结合三维(3D)体外培养模型,整合牙周炎的某些方面进行探索性分析,基因表达分析表征PAFs最初的特点,然后体外靶向基因下调和药理干预。此外,使用免疫组织化学分析组织标本中的磷酸化。

结果显示,PAFs的特征是42个基因上调> 1.5倍,5个基因下调(<0.7倍)。血管内皮生长因子(VEGF)受体1(Flt-1)的表达明显升高,因此在牙周成纤维细胞的体外培养模型中进一步探究,而不考虑微生物组。VEGF受体1的磷酸化在PAFs中增强。3D凝胶培养物中通过特异性VEGF受体抑制剂的受体抑制或通过VEGF受体激酶的RNAi处理可明显下调与增加的金属蛋白酶表达的组织抑制剂相关的胶原降解,表明Flt-1可能有助于牙周炎的进展。

总之,该研究结果表明,基于VEGF受体激酶可减弱胶原降解通路的发现,Flt-1或成为治疗牙周炎的新靶点。

原始出处:

Ohshima M, Yamaguchi Y, et al., Fibroblast VEGF-receptor 1 expression as molecular target in periodontitis. J Clin Periodontol. 2016 Feb;43(2):128-37. doi: 10.1111/jcpe.12495. Epub 2016 Feb 23. 

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    2018-05-15 feather89
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