中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (17): 2732-2737.doi: 10.12307/2022.543

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

活化T细胞核因子5对人胃癌MGC803细胞迁移、侵袭及细胞周期的影响

郭隽馥,高  霞,常家榕,高诗琪,苗兰英   

  1. 辽宁中医药大学教学实验中心,辽宁省沈阳市   110847
  • 收稿日期:2021-03-25 修回日期:2021-03-31 接受日期:2021-05-26 出版日期:2022-06-18 发布日期:2021-12-27
  • 通讯作者: 苗兰英,教授,研究员级高级实验师,辽宁中医药大学教学实验中心,辽宁省沈阳市 110847
  • 作者简介:郭隽馥,女,辽宁省沈阳市人,2015年中国医科大学毕业,博士,高级实验师,硕士生导师,主要从事中西医结合肿瘤分子遗传学方面的基础研究。
  • 基金资助:
    国家自然科学基金青年项目(81803855),项目负责人:郭隽馥;辽宁省博士启动项目(2019-BS-166),项目负责人:郭隽馥;沈阳市中青年科技创新人才支持计划项目(RC190078),项目负责人:郭隽馥

Effects of nuclear factor of activated T cells 5 on migration, invasion and cell cycle of human gastric cancer MGC803 cells

Guo Junfu, Gao Xia, Chang Jiarong, Gao Shiqi, Miao Lanying   

  1. Teaching and Experiment Center, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, Liaoning Province, China
  • Received:2021-03-25 Revised:2021-03-31 Accepted:2021-05-26 Online:2022-06-18 Published:2021-12-27
  • Contact: Miao Lanying, Professor, Teaching and Experiment Center, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, Liaoning Province, China
  • About author:Guo Junfu, MD, Senior experimentalist, Master’s supervisor, Teaching and Experiment Center, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, Liaoning Province, China
  • Supported by:
    the National Natural Science Foundation of China (Youth Program), No. 81803855 (to GJF); Liaoning Provincial Doctoral Start-up Project, No. 2019-BS-166 (to GJF); Shenyang Young and Middle-Aged Science and Technology Innovation Talent Support Program, No. RC190078 (to GJF)

摘要:

文题释义:
细胞迁移力:细胞迁移是肿瘤转移的关键步骤之一。肿瘤细胞能够通过变形虫样运动和追逐等方式,完成近乎直线的迁移过程。常用的实验检测手段有划痕实验(检测水平迁移力)和Transwell实验(检测垂直迁移力),研究肿瘤细胞迁移的动力能够为转移的阻断提供新策略、新方向。
细胞侵袭力:肿瘤细胞通过细胞外基质从一个区域迁移到另一个区域之前,能够产生基质金属蛋白酶(基质金属蛋白酶9、基质金属蛋白酶13等),并以此水解突破细胞外基质完成侵袭过程。研究肿瘤细胞侵袭的动力能够为转移的阻断提供新策略、新方向。

背景:近年研究发现,活化T细胞核因子5(nuclear factor 5 of activated T cells,NFAT5)高表达与多种肿瘤的发生进展关系密切。前期研究发现,NFAT5能够促进人胃癌MGC803细胞增殖并抑制其凋亡。
目的:探讨NFAT5对人胃癌MGC803细胞迁移力、侵袭力及细胞周期的影响。
方法:实验分为siRNA阴性对照组与NFAT5-siRNA组。有效转染人胃癌MGC803细胞沉默NFAT5基因表达后,采用划痕实验、Transwell实验和流式细胞术分别检测各组细胞迁移力、侵袭力及细胞周期分布的改变。
结果与结论:①siRNA阴性对照组划痕的愈合能力明显高于NFAT5-siRNA组;②NFAT5-siRNA组穿过小室的细胞数目明显少于siRNA阴性对照组[(134.63±25.62)个vs.(195.00±60.41)个,P < 0.05];③与siRNA阴性对照组相比,NFAT5-siRNA组细胞中G1期细胞比例显著升高[(60.03±0.55)% vs.(62.46±0.73)%,P < 0.05],而S期细胞比例显著降低[(28.24±1.16)% vs.(25.44±1.15)%,P < 0.05];④提示沉默人胃癌MGC803细胞中NFAT5基因表达能够有效减弱细胞的迁移力和侵袭力,改变细胞周期分布,进而减少细胞增殖,NFAT5有望成为胃癌诊治的新靶点。
缩略语:活化T细胞核因子:nuclear factor of activated T cells,NFAT;小干扰RNA:small interfering RNA,siRNA

https://orcid.org/0000-0001-5034-2824 (郭隽馥) 

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: NFAT5, 胃癌, 细胞侵袭, 细胞迁移, 细胞周期

Abstract: BACKGROUND: Recent studies have shown that high expression of nuclear factor 5 of activated T cells (NFAT5) is closely related to the occurrence and progression of a variety of tumors. Previous studies have found that NFAT5 can promote the proliferation and inhibit the apoptosis of human gastric cancer MGC803 cells. 
OBJECTIVE: To investigate the effects of NFAT5 on migration, invasion and cell cycle of human gastric cancer MGC803 cells. 
METHODS: There were two groups: NC-siRNA and NFAT5-siRNA. The siRNAs were transfected to silence NFAT5 gene expression in MGC803 cells. Cell scratch assay, Transwell assay and flow cytometry were performed to test migration ability, invasion ability, and cell cycle distribution, respectively. 
RESULTS AND CONCLUSION: The wound healing capacity of NC-siRNA group was significantly higher than that in the NFAT5-siRNA group. The number of cells passed through the ventricle in the NFAT5-siRNA group was obviously less than that in the NC-siRNA group [(134.63±25.62) vs. (195.00±60.41), P < 0.05]. Compared with the NC-siRNA group, the proportion of G1-phase cells was significantly increased [(60.03±0.55)% vs. (62.46±0.73)%, P < 0.05] and the proportion of S-phase cells was significantly decreased [(28.24±1.16)% vs. (25.44±1.15)%, P < 0.05]. Therefore, NFAT5 silencing in human gastric cancer MGC803 cells can inhibit cell migration and invasion abilities in vitro and change the cell cycle distribution, thereby reducing cell proliferation ability. NFAT5 is expected to be a new diagnostic and therapeutic target for gastric cancer.

Key words: NFAT5, gastric cancer, cell, migration, invasion, cell cycle

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