当前位置: X-MOL 学术Cell. Mol. Biol. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Upregulation of miR-376c-3p alleviates oxygen-glucose deprivation-induced cell injury by targeting ING5.
Cellular & Molecular Biology Letters ( IF 8.3 ) Pub Date : 2019-12-04 , DOI: 10.1186/s11658-019-0189-2
Heng Zhang 1 , Jie Zhou 1 , Mingxia Zhang 1 , Yanjie Yi 1 , Bing He 1
Affiliation  

The expression level of miR-376c-3p is significantly lower in infants with neonatal hypoxic-ischemic encephalopathy (HIE) than in healthy infants. However, the biological function of this microRNA remains largely elusive. We used PC-12 and SH-SY5Y cells to establish an oxygen–glucose deprivation (OGD) cell injury model to mimic HIE in vitro. The miR-376c-3p expression levels were measured using quantitative reverse transcription PCR. The CCK-8 assay and flow cytometry were utilized to evaluate OGD-induced cell injury. The association between miR-376c-3p and inhibitor of growth 5 (ING5) was validated using the luciferase reporter assay. Western blotting was conducted to determine the protein expression of CDK4, cyclin D1, Bcl-2 and Bax. MiR-376c-3p was significantly downregulated in the OGD-induced cell injury model. Its overexpression elevated cell viability and impaired cell cycle G0/G1 phase arrest and apoptosis in PC-12 and SH-SY5Y cells after OGD. Downregulation of miR-376c-3p gave the opposite results. We further demonstrated that ING5 was a negatively regulated target gene of miR-376c-3p. Importantly, ING5 knockdown had a similar effect to miR-376c-3p-mediated protective effects against cell injury induced by OGD. Its overexpression abolished these protective effects. Our data suggest that miR-376c-3p downregulated ING5 to exert protective effects against OGD-induced cell injury in PC-12 and SH-SY5Y cells. This might represent a novel therapeutic approach for neonatal HIE treatment.

中文翻译:

miR-376c-3p 的上调通过靶向 ING5 减轻氧-葡萄糖剥夺诱导的细胞损伤。

miR-376c-3p 在新生儿缺氧缺血性脑病 (HIE) 婴儿中的表达水平显着低于健康婴儿。然而,这种 microRNA 的生物学功能在很大程度上仍然难以捉摸。我们使用 PC-12 和 SH-SY5Y 细胞建立氧-葡萄糖剥夺 (OGD) 细胞损伤模型以在体外模拟 HIE。使用定量逆转录PCR测量miR-376c-3p表达水平。CCK-8 测定和流式细胞术用于评估 OGD 诱导的细胞损伤。使用荧光素酶报告基因分析验证了 miR-376c-3p 和生长抑制剂 5 (ING5) 之间的关联。进行蛋白质印迹以确定CDK4、细胞周期蛋白D1、Bcl-2和Bax的蛋白表达。MiR-376c-3p 在 OGD 诱导的细胞损伤模型中显着下调。其过表达提高了 OGD 后 PC-12 和 SH-SY5Y 细胞的细胞活力并损害了细胞周期 G0/G1 期阻滞和细胞凋亡。miR-376c-3p的下调给出了相反的结果。我们进一步证明ING5是miR-376c-3p的负调控靶基因。重要的是,ING5 敲低与 miR-376c-3p 介导的对 OGD 诱导的细胞损伤的保护作用相似。它的过度表达消除了这些保护作用。我们的数据表明 miR-376c-3p 下调 ING5 以对 PC-12 和 SH-SY5Y 细胞中 OGD 诱导的细胞损伤发挥保护作用。这可能代表了一种新的新生儿 HIE 治疗方法。我们进一步证明ING5是miR-376c-3p的负调控靶基因。重要的是,ING5 敲低与 miR-376c-3p 介导的对 OGD 诱导的细胞损伤的保护作用相似。它的过度表达消除了这些保护作用。我们的数据表明 miR-376c-3p 下调 ING5 以对 PC-12 和 SH-SY5Y 细胞中 OGD 诱导的细胞损伤发挥保护作用。这可能代表了一种新的新生儿 HIE 治疗方法。我们进一步证明ING5是miR-376c-3p的负调控靶基因。重要的是,ING5 敲低与 miR-376c-3p 介导的对 OGD 诱导的细胞损伤的保护作用相似。它的过度表达消除了这些保护作用。我们的数据表明 miR-376c-3p 下调 ING5 以对 PC-12 和 SH-SY5Y 细胞中 OGD 诱导的细胞损伤发挥保护作用。这可能代表了一种新的新生儿 HIE 治疗方法。我们的数据表明 miR-376c-3p 下调 ING5 以对 PC-12 和 SH-SY5Y 细胞中 OGD 诱导的细胞损伤发挥保护作用。这可能代表了一种新的新生儿 HIE 治疗方法。我们的数据表明 miR-376c-3p 下调 ING5 以对 PC-12 和 SH-SY5Y 细胞中 OGD 诱导的细胞损伤发挥保护作用。这可能代表了一种新的新生儿 HIE 治疗方法。
更新日期:2019-12-04
down
wechat
bug