中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (21): 3326-3331.doi: 10.3969/j.issn.2095-4344.2017.21.008

• 肿瘤干细胞 cancer stem cells • 上一篇    下一篇

丁酸钠联合肿瘤坏死因子相关凋亡诱导配体对肺癌干细胞生物学行为的影响

史红阳1,纪玉强2,张德信1,刘 昀1,方 萍1   

  1. 1西安交通大学第二附属医院呼吸内科,陕西省西安市  7100042西安市第一医院心血管病研究室,陕西省西安市 710002
  • 修回日期:2017-02-19 出版日期:2017-07-28 发布日期:2017-08-02
  • 通讯作者: 史红阳,西安交通大学第二附属医院呼吸内科,陕西省西安市 710004
  • 作者简介:史红阳,女,1976年生,陕西省咸阳市人,汉族,博士,主治医师,主要从事呼吸科疾病研究。
  • 基金资助:

    中央高校基本科研业务费专项资金资助项目(XJJ2012057)

Effect of sodium butyrate combined with TRAIL on biological behaviors of lung cancer stem cells

Shi Hong-yang1, Ji Yu-qiang2, Zhang De-xin1, Liu Yun1, Fang Ping1   

  1. 1Department of Respiratory Medicine, the Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an 710004, Shaanxi Province, China; 2Department of Cardiovasology, the First Hospital of Xi'an, Xi’an 710002, Shaanxi Province, Chin
  • Revised:2017-02-19 Online:2017-07-28 Published:2017-08-02
  • Contact: Shi Hong-yang, Department of Respiratory Medicine, the Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an 710004, Shaanxi Province, China
  • About author:Shi Hong-yang, M.D., Attending physician, Department of Respiratory Medicine, the Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an 710004, Shaanxi Province, China
  • Supported by:

    the Fundamental Research Funds for the Central Universities of China, No. XJJ2012057

摘要:

文章快速阅读:

文题释义:
丁酸钠的抗癌作用:①
丁酸钠对多种肿瘤细胞具有抑制作用,但其联合肿瘤坏死因子相关凋亡诱导配体(TRAIL)对肿瘤细胞的作用尚未知晓;②利用免疫磁珠细胞分选技术成功的从人肺腺癌A549细胞中分选出CD133+肺癌干细胞。观察丁酸钠单独或联合TRAIL给药对肺癌干细胞的影响,发现丁酸钠可以抑制肺癌干细胞的增殖、迁移及自我更新,并促进细胞凋亡,与TRAIL联合用药具有协同抑制效应。
丁酸钠:是食物纤维在结肠内发酵过程中产生的四碳短链脂肪酸,是组蛋白去乙酰化酶抑制剂之一,它可通过抑制组蛋白去乙酰化酶而使染色体结构变得松弛,促进肿瘤细胞凋亡。近年来的研究表明,丁酸钠在体内外实验中都能够抑制肿瘤的生长,诱导肿瘤细胞凋亡及分化,且对机体有较低的细胞毒性,因此备受肿瘤研究者的关注。

 

摘要
背景:
丁酸钠是一种组蛋白去乙酰化酶抑制剂,能够抑制多种肿瘤细胞的增殖、诱导细胞凋亡及分化,但其联合肿瘤坏死因子相关凋亡诱导配体对肺癌干细胞的影响尚未见报道。
目的:研究丁酸钠单独或联合给药对肺癌干细胞生物学行为的影响。 
方法:利用免疫磁珠细胞分选技术从人肺腺癌A549细胞中分选CD133+肺癌干细胞,将CD133+肺癌干细胞分4组培养,对照组以DMEM/F12培养基培养,丁酸钠组以含5 mmol/L丁酸钠的DMEM/F12培养基培养,TRAIL组以含50 μg/L肿瘤坏死因子相关凋亡诱导配体的DMEM/F12培养基培养,联合组以含5 mmol/L丁酸钠+50 μg/L肿瘤坏死因子相关凋亡诱导配体的DMEM/F12培养基培养。检测培养96 h内的细胞增殖、培养24 h后的细胞凋亡、培养48 h内的细胞迁移能力,以及培养48 h后的多能性转录因子Oct4、Sox2及Nanog蛋白表达。
结果与结论:①细胞增殖:联合组培养不同时间点的细胞增殖抑制率显著高于丁酸钠组、TRAIL组(P < 0.05);②细胞凋亡:丁酸钠组、TRAIL组、联合组细胞凋亡率高于对照组(P < 0.05),联合组高于丁酸钠组、TRAIL组(P < 0.05);③细胞迁移能力:丁酸钠组、TRAIL组、联合组细胞划痕距离大于对照组(P < 0.05),联合组大于丁酸钠组、TRAIL组(P < 0.05);④多能性转录因子表达:丁酸钠组、TRAIL组、联合组多能性转录因子Oct4、Sox2及Nanog蛋白表低于对照组(P < 0.05),联合组低于丁酸钠组、TRAIL组(P < 0.05);⑤结果表明:丁酸钠与肿瘤坏死因子相关凋亡诱导配体联合用药,对肺癌干细胞有协同抑制作用。

关键词: 干细胞, 肿瘤干细胞, 丁酸钠, TRAIL, 联合用药, 肺腺癌A549细胞, CD133+肺癌干细胞, 增殖, 凋亡, 迁移

Abstract:

BACKGROUND: Sodium butyrate, a histone deacetylase inhibitor, can inhibit cell proliferation, and induce apoptosis and differentiation of various cancer cells. However, the role of sodium butyrate combined with tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) on lung cancer stem cells remains unclear.

OBJECTIVE: To explore the effect of sodium butyrate combined with TRAIL on biological behaviors of lung cancer stem cells.
METHODS: Magnetic bead separation was used to separate lung cancer stem cells (CD133+) from human lung adenocarcinoma A549 cells. After the lung cancer stem cells were treated with simple DMEM/F12, DMEM/F12 containing sodium butyrate (5 mmol/L), TRAIL (50 μg/L) or sodium butyrate combined with TRAIL, the cell proliferation within 96 hours of culture was determined by MTT assay; the apoptosis within 24 hours of culture was measured by flow cytometry; the cell migration within 48 hours of culture was detected by cell scratch test; the expression levels of pluripotent transcription factors (Oct4, Sox2 and Nanog) within 48 hours of culture were detected using western blot analysis.
RESULTS AND CONCLUSION: The CD133+ lung cancer stem cells were successfully enriched from human lung adenocarcinoma A549 cells. MTT assay showed that sodium butyrate and TRAIL significantly inhibited the proliferation of lung cancer stem cells (P < 0.05), and the combination effect was even stronger (P < 0.05). Results from flow cytometry analysis and scratch test showed that sodium butyrate or TRAIL induced apoptosis and inhibited cell migration of lung cancer stem cells (P < 0.05), and the combination of sodium butyrate and TRAIL showed a stronger effect (P < 0.05). In addition, the expression levels of Oct4, Sox2 and Nanog were significantly down-regulated by sodium butyrate (P < 0.05), TRAIL or sodium butyrate combined with TRAIL, and the combination effect was stronger (P < 0.05). In conclusion, sodium butyrate and TRAIL have synergistic effects on lung cancer stem cells, indicating a new way for treatment of lung cancer.

Key words: Stem Cells, Lung Neoplasms, Tumor Necrosis Factors, Tissue Engineering

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