Hypertension:Toll样受体9(TLR9)可通过差异性调控VEGFA和sFLT1的表达抑制子娴前期患者母胎界面的血管生成

2018-02-06 MedSci MedSci原创

子娴前期是一种常见的妊娠特异性疾病,特点是血压升高和蛋白尿。母体免疫系统激活和胎盘血管生成受损被认为是导致子娴前期的致病原因。TLR9(Toll样受体9)在固有免疫中发挥作用,保护组织不受感染。本研究对TLR9在子娴前期的情况下,是否会抑制母胎界面的血管生成进行研究。实验发现子娴前期患者的胎盘中VEGFA(血管内皮生长因子A)表达下调、TLR9和sFLT1(可溶性血管内皮生长因子受体1)表达上调。

子娴前期是一种常见的妊娠特异性疾病,特点是血压升高和蛋白尿。母体免疫系统激活和胎盘血管生成受损被认为是导致子娴前期的致病原因。TLR9(Toll样受体9)在固有免疫中发挥作用,保护组织不受感染

本研究对TLR9在子娴前期的情况下,是否会抑制母胎界面的血管生成进行研究。

实验发现子娴前期患者的胎盘中VEGFA(血管内皮生长因子A)表达下调、TLR9和sFLT1(可溶性血管内皮生长因子受体1)表达上调。此外,研究人员利用TLR9合适受体激动剂CpG-ODN成功建立了子娴前期样症状的小鼠模型。研究人员还发现在子娴前期样模式动物的胎盘和用CpG-ODN处理的滋养层细胞中VEGFA表达下调、sFLTE表达上调。另外,沉默TLR9可促进HTR/SVneo细胞迁移和侵袭。


总而言之,TLR9可通过差异性调控母胎界面的VEGFA和sFLT1的表达有效地抑制血管生成,或许因此导致了子娴前期的发生。

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    2018-07-21 feather89
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    2018-03-17 lilianxiang
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    2018-02-20 yinhl1978
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