解剖学报 ›› 2022, Vol. 53 ›› Issue (5): 563-570.doi: 10.16098/j.issn.0529-1356.2022.05.004

• 神经生物学 • 上一篇    下一篇

长链非编码RNA 细胞骨架调节RNA靶向微小RNA-1246对帕金森病模型细胞损伤的保护作用

李薇1* 王丽2 汪志华3 刘庆春1 韩荣胜4
  

  1. 1.青海省第五人民医院神经内科,西宁 810000; 2.青海省第五人民医院内分泌科,西宁 810000; 3.青海心脑血管病专科医院影像科,西宁 810012; 4.青海省第五人民医院心内科,西宁 810000
  • 收稿日期:2020-12-11 修回日期:2021-05-13 出版日期:2022-10-06 发布日期:2022-10-06
  • 通讯作者: 李薇 E-mail:vks081@163.com

Protective effect of long non-coding RNA cytoskeleton regulatory RNA targeting microRNA-1246 on cell damage in Parkinson’s disease models

LI  Wei1* WANG  Li2  WANG  Zhi-hua3  LIU  Qing-chun1  HAN  Rong-sheng4   

  1. 1.Department of Neurology, the Fifth People’s Hospital of Qinghai Province, Xining 810000, China; 2.Department of Endocrinology, the Fifth People’s Hospital of Qinghai Province, Xining 810000, China; 3.Department of Imaging, Qinghai Cardiovascular and Cerebrovascular Disease Hospital, Xining 810012,  China;4.Department of Cardiology, the Fifth People’s Hospital of Qinghai Province, Xining 810000, China
  • Received:2020-12-11 Revised:2021-05-13 Online:2022-10-06 Published:2022-10-06
  • Contact: LI Wei E-mail:vks081@163.com

摘要:

目的  探讨长链非编码RNA(lncRNA)细胞骨架调节RNA(CYTOR)靶向微小RNA(miR)-1246对帕金森病(PD)模型细胞损伤的影响。   方法  采用100 μmol/L 1-甲基-4-苯基-吡啶离子(MPP+)诱导SK-N-SH细胞建立PD细胞模型。Real-time PCR检测CYTOR和miR-1246表达。在SK-N-SH细胞中转染pcDNA-CYTOR或anti-miR-1246,或共转染pcDNA-CYTOR和miR-1246模拟物,经MPP+处理后,采用流式细胞术分析细胞凋亡,试剂盒检测丙二醛(MDA)含量及谷胱甘肽过氧化物酶(GSH)活性。双荧光素酶报告基因实验分析CYTOR和miR-1246靶向关系。   结果  PD细胞模型中CYTOR表达量降低(P<0.05),miR-1246表达量升高(P<0.05)。过表达CYTOR或抑制miR-1246表达均可降低模型细胞凋亡率和MDA含量(P<0.05),并增加GSH活性(P<0.05)。MiR-1246是CYTOR的靶基因,CYTOR负性调控miR-1246表达。上调miR-1246可逆转CYTOR过表达对模型细胞凋亡和氧化损伤的影响(P<0.05)。   结论  LncRNA CYTOR靶向miR-1246可减轻PD模型细胞凋亡和氧化损伤。

关键词: 长链非编码RNA,  , 细胞骨架调节RNA, 微小RNA-1246, 氧化损伤, 流式细胞术, 帕金森病细胞模型

Abstract:

Objective  To study the effect of long non-coding RNA (lncRNA) cytoskeleton regulatory RNA (CYTOR) targeting microRNA (miR)-1246 on cell damage in Parkinson’s disease (PD) models.    Methods  SK-N-SH cells were exposed to 100 μmol/L 1-methyl-4-phenylpyridinium (MPP+) to establish a PD cell model in vitro. The levels of CYTOR and miR-1246 were determined by Real-time PCR. pcDNA-CYTOR or anti-miR-1246, or co-transfect pcDNA-CYTOR and miR-1246 mimics were transfected into SK-N-SH cells, repectively. After treated with MPP+, flow cytometry was used to assess cell apoptosis, and commercial kits was used to monitor malondialdehyde (MDA) content and glutathione peroxidase (GSH) activity. The interaction between CYTOR and miR-1246 was verified by dual-luciferase reporter assay.    Results  CYTOR reduced (P<0.05), while miR-1246 increased (P<0.05) in PD model cells. CYTOR overexpression or miR-1246 inhibition could reduce the apoptosis rate and MDA content of model cells (P<0.05), and increase GSH activity (P<0.05). MiR-1246 was the target gene of CYTOR, and CYTOR negatively regulated miR-1246 expression. Up-regulation of miR-1246 could reverse the effect of CYTOR overexpression on apoptosis and oxidative damage of model cells (P<0.05).  Conclusion  LncRNA CYTOR can reduce cell apoptosis and oxidative damage in PD models by targeting miR-1246.

Key words: Long non-coding RNA, Cytoskeleton regulatory RNA, MicroRNA-1246, Oxidative damage, Flow cytometry, Parkinson’s disease cell model

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