实用医学杂志 ›› 2021, Vol. 37 ›› Issue (4): 451-457.doi: 10.3969/j.issn.1006⁃5725.2021.04.007

• 基础研究 • 上一篇    下一篇

miR⁃155⁃5p通过靶向抑制 机制 Sirt1影响子痫前期发生的机制

曹丹, 汤小芳, 李敏慧   

  1. 南京医科大学附属常州市第二人民医院产科(江苏常州 213000)
  • 出版日期:2021-02-25 发布日期:2021-02-25
  • 通讯作者: 李敏慧 E⁃mail:310753742@qq.com
  • 基金资助:
    常州市卫计委科技项目(编号:QN201816)

miR ⁃ 155 ⁃ 5p influences the occurrence of preeclampsia through targeted inhibition of Sirt1

CAO Dan TANG Xiaofang,LI Minhui   

  1. Department of Obstetrics,Changzhou Second People′ s Hospital Affiliated to Nanjing Medical University,Changzhou 213000,China

  • Online:2021-02-25 Published:2021-02-25
  • Contact: LI Minhui E⁃mail:310753742@qq.com

摘要:

目的 探讨子痫前期患者中 microRNA⁃155⁃5p(miR⁃155⁃5p)通过靶向抑制沉默信息调节因 1(Sirt1)对子痫前期的发病机理的影响。方法 收集 2018 1 月至 2018 12 月期间,选择本院妇产 科收治的子痫前期患者和正常孕妇胎盘样本各 25 例。采用 RT⁃qPCR 法检测胎盘中 miR⁃155⁃5p Sirt1 表达。另外,在体外过表达 miR⁃155⁃5p 以及敲除 Sirt1 检测其对 HTR⁃8/SVeno 细胞迁移和侵袭的影响。 结果 子痫前期胎盘中 miR⁃155⁃5p 表达高于对照组(P < 0.01),Sirt1 mRNA 和蛋白表达水平在子痫前期患 者中均低于对照组(P < 0.01)。子痫前期患者的 miR⁃155⁃5p 表达与 Sirt1 蛋白表达呈负相关(r = -0.636 6 P = 0.016 9)。在 HTR⁃8/SVeno 细胞中分别过表达 miR⁃155⁃5p 和敲除 Sirt1 均抑制滋养层细胞的侵袭和迁 移(P < 0.01)。结论 miR⁃155⁃5p 可能通过抑制 Sirt1 表达调节滋养层细胞的迁移和侵袭从而影响子痫前期的发生。

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Abstract:

Objective To investigate the effect of microRNA⁃155⁃5p(miR⁃155⁃5p)on the pathogenesis of preeclampsia through targeted inhibition of silent information regulator 1(Sirt1)in patients with preeclampsia. Methods From January 2018 to December 2018,placental samples(n = 25)from patients with preeclampsia and normal pregnant women were selected from the obstetrics department of our hospital. RT⁃qPCR was used to detect miR⁃155⁃5p and Sirt1 expression in the placenta. In addition,over⁃expression of miR⁃155⁃5p and knock⁃ down of Sirt1 was performed to determine its effect on HTR⁃8/SVeno cells migration and invasion. Results The expression of miR⁃155⁃5p in the placenta of the preeclampsia group was higher than that of the control group(P < 0.01),and the expression levels of Sirt1 mRNA and protein were lower in the patients with preeclampsia than in the control group(P < 0.01). There was a negative correlation between miR⁃155⁃5p expression and Sirt1 protein expression in preeclampsia patients(r = -0.636 6,P = 0.016 9). Over⁃expression of miR⁃155⁃5p and knockdown of Sirt1 in HTR ⁃8/SVeno cells,respectively,inhibited invasion and migration of trophoblast cells(P < 0.01). Conclusion miR⁃155⁃5p may regulate the migration and invasion of trophoblast cells by inhibiting Sirt1 expres⁃ sion,thus affecting the occurrence of preeclampsia.

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