河北医科大学学报

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沉默PLK1基因表达对肺腺癌H1792细胞肿瘤生物学行为影响的研究

  

  1. 1.河北医科大学第四医院胸六科,河北 石家庄 050011;2.河北医科大学第四医院肿瘤免疫科,河北 石家庄 050011;
    3.河北医科大学第四医院肿瘤研究所流式细胞室,河北 石家庄 050011;4.河北省保定市第一中心医院胸外科,
    河北 保定 071000;5.河北医科大学第四医院麻醉科,河北 石家庄 050011
  • 出版日期:2019-11-25 发布日期:2019-11-21
  • 作者简介:邓皓文(1995-),男,四川合江人,河北医科大学第四医院医学硕士研究生,从事胸外科疾病诊治研究。
  • 基金资助:
    河北省重点研发计划项目(18397771D);河北省留学人员科技活动项目择优资助(CY201613)

Silencing PLK1 with small interfering RNA modulates biologic behavior of lung adenocarcinoma#br#

  1. 1.The Sixth Department of Thoracic Surgery, the Fourth Hospital of Hebei Medical University, Shijiazhuang
    050011, China; 2.Departemnt of Immuno-oncology, the Fourth Hospital of Hebei Medical University,
    Shijiazhuang 050011, China; 3.Department of FCM, Analysis of Tumor Institute, the Fourth
    Hospital of Hebei Medical University, Shijiazhuang 050011, China; 4.Department of
    Thoracic Surgery, Baoding NO.1 Central Hospital, Hebei Province, Baoding
    071000, China; 5.Department of Anesthesiology, the Fourth Hospital of
    Hebei Medical University, Shijiazhuang 050011, China
  • Online:2019-11-25 Published:2019-11-21

摘要: [摘要]
〖HTH〗目的〖HTSS〗〖KG*2〗探讨PLK1表达下调对肺腺癌H1792细胞肿瘤生物学行为的影响,并分析相关机制。
〖HTH〗方法〖HTSS〗〖KG*2〗将PLK1 siRNA和control siRNA转染肺腺癌H1792细胞48 h,采用实时荧光定量聚合酶链反应(polymerase chain reaction,PCR)法检测肺腺癌H1792细胞PLK1 mRNA表达水平;采用Western blot法检测H1792细胞中PLK1、E-cadherin、Vimentin蛋白表达;再通过流式细胞术检测肺腺癌H1792细胞检测周期分布的变化情况;Transwell实验检测H1792细胞侵袭能力的改变。
〖HTH〗结果〖HTSS〗〖KG*2〗PLK1 siRNA组PLK1 mRNA表达水平显著低于control siRNA组(P<0.05)。PLK1 siRNA组PLK1蛋白和 Vimentin蛋白表达显著低于control siRNA组,E-cadherin蛋白表达显著高于control siRNA组(P<0.05)。PLK1 siRNA组G2/M期细胞比例显著高于control siRNA组,S期细胞比例显著低于control siRNA组(P<0.05)。siRNA组穿膜细胞数显著少于control siRNA组(P<0.05)。
〖HTH〗结论〖HTSS〗〖KG*2〗PLK1在肺腺癌的生长和侵袭转移中发挥重要作用。

关键词: 肺肿瘤, RNA干扰, 细胞周期

Abstract: [Abstract]Objective〖HTSS〗To investigate the effect of down-regulation of PLK1 on the biological behavior of lung adenocarcinoma H1792 cells and analyze related mechanisms.
〖HTH〗〖WTHZ〗Methods〖HTSS〗PLK1 siRNA and control siRNA were transiently transfected into H1792 cells for 48 h respectively. Gene and protein expressions of the PLK1, E-cadherin and Vimentin were detected by real time polymerase chain reaction(PCR) and western blot assay. The cell cycle were determined by using flow cytometry. Invasion ability were evaluated by Transwell assay.
〖HTH〗〖WTHZ〗Results〖HTSS〗The expression level of PLK1 mRNA in PLK1 siRNA group was significantly lower than that in control siRNA group(P<0.05). The expression of PLK1 protein and Vimentin protein in PLK1 siRNA group was significantly lower than that in control siRNA group, and the expression of E-cadherin protein was significantly higher than that in control siRNA group(P<0.05). The proportion of G2/M phase cells in PLK1 siRNA group was significantly higher than that in control siRNA group, and the proportion of cells in S phase was significantly lower than that in control siRNA group(P<0.05). The number of transmembrane cells in the siRNA group was significantly lower than that in the control siRNA group(P<0.05).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗PLK1 plays an important role in the growth, invasion and metastasis of lung adenocarcinoma.

Key words: lung neoplasms, rna interference, cell cycle