中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (13): 2009-2014.doi: 10.3969/j.issn.2095-4344.2017.13.008

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

重组腺病毒载体介导人乳铁蛋白对宫颈癌干样细胞增殖与凋亡的影响

张  霞,都治香,王  娜,孟亚丽   

  1. 河北医科大学第一医院,河北省石家庄市  050031
  • 修回日期:2017-03-22 出版日期:2017-05-08 发布日期:2017-06-09
  • 通讯作者: 孟亚丽,主任医师,河北医科大学第一医院,河北省石家庄市 050031
  • 作者简介:张霞,女,1971年生,汉族,硕士,主治医师,主要从事妇科相关研究。
  • 基金资助:

    河北省2014年度医学科学研究重点课题计划项目(ZD20140325)

Effects of recombinant adenovirus vector expressing human lactoferrin on proliferation and apoptosis of cervical cancer stem-like cells

Zhang Xia, Du Zhi-xiang, Wang Na, Meng Ya-li   

  1. First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • Revised:2017-03-22 Online:2017-05-08 Published:2017-06-09
  • Contact: Meng Ya-li, Chief physician, the First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • About author:Zhang Xia, Master, Attending physician, the First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • Supported by:

    the Key Project of Medical Science Research in Hebei Province in 2014, No. ZD20140325

摘要:

文章快速阅读:

文题释义:
宫颈癌干样细胞:
是指宫颈癌原代细胞中细胞可分化分具有干细胞特性的细胞,可采用SP法进行分选。
重组腺病毒:重组腺病毒是从由侵染色斑组成单位(pfu)中分离获得的。一个单色斑是线性载体质粒转染后在20 cm×15 cm板上由293A细胞连续侵染后被挑选和扩增形成的。重组腺病毒可通过超速离心纯化,并测定滴度及进行PCR鉴定。

 

摘要
背景:
基因工程在人类治疗恶性肿瘤的过程中起着重要作用,腺病毒是常用的基因工程载体,近年来发现乳铁蛋白在多种肿瘤的发生、发展及转移中有着重要作用,但目前对于乳铁蛋白通过腺病毒载体导入人体内的表达情况的研究报道目前还比较少。
目的:观察重组腺病毒载体介导的人乳铁蛋白对宫颈癌干样细胞的增殖及凋亡的影响。
方法:通过体外培养小鼠宫颈癌原代细胞,采用SP法分选出宫颈癌干样细胞,将构建好的载有乳铁蛋白的重组腺病毒载体人乳铁蛋白转染于宫颈癌干样细胞,分组为空白对照组、空病毒组和重组腺病毒人乳铁蛋白组。而在人乳铁蛋白感染宫颈癌干样细胞后,通过MTT法检测人乳铁蛋白感染后宫颈癌干样细胞的增殖情况,划痕实验检测宫颈癌干样细胞的迁移,通过Western blot法检测乳铁蛋白在宫颈癌干样细胞内的表达,采用Annexin V-FITC/PI法测定宫颈癌干样细胞的凋亡情况。
结果与结论:与其他2组相比,重组腺病毒人乳铁蛋白组宫颈癌干样细胞增殖数量及划痕处细胞的数目减少,凋亡细胞增加(P < 0.05或P < 0.01)。结果证实,载有乳铁蛋白的重组腺病毒载体人乳铁蛋白用于感染体外培养的宫颈癌干样细胞后,能稳定在宫颈癌干样细胞内表达,且能明显抑制宫颈癌干样细胞增殖,减少细胞迁移,并促进细胞凋亡。

 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID: 0000-0002-8398-3350(张霞)

关键词: 干细胞, 肿瘤干细胞, 宫颈癌干样细胞, 乳铁蛋白, 宫颈癌, 腺病毒, 划痕实验, 最佳感染复数, 增殖, 凋亡, MTT, 感染复数

Abstract:

BACKGROUND: Gene engineering plays an important role in the process of human malignant tumor treatment, and adenovirus vectors for gene therapy are commonly used. In recent years, lactoferrin is found to exert important effects on the occurrence, development and metastasis of a variety of tumors. However, little is reported on the in vivo expression of adenovirus vector mediated lactoferrin in the human body.
OBJECTIVE: To investigate the effect of adenovirus mediated human lactoferrin (Ad-hLF) on proliferation and apoptosis of cervical cancer stem-like cells.
METHODS: Primary cervical cancer cells from mice were cultured in vitro to sort cervical cancer stem-like cells using SP method. Afterwards, the stem-like cells were divided into three groups, blank control group, empty vector group, and Ad-hLF group, followed by transfection with nothing, Ad-GFP and Ad-hLF, respectively. After transfection, MTT assay was used to detect the proliferation of cervical cancer stem-like cells; scratch-wound assay was employed to detect the migration of cervical cancer stem-like cells; western blot assay was used to determine the expression of lactoferrin in cervical cancer stem-like cells; and Annexin V-FITC/PI was used to detect cell apoptosis.
RESULTS AND CONCLUSION: Compared with the blank control and empty vector groups, Ad-hLF significantly inhibited the proliferation of cervical cancer stem-like cells and reduced the number of scratched cells, while the cell apoptosis increased in the Ad-hLF group (P < 0.05 or P < 0.01). These findings indicate that the recombinant adenovirus vector mediated lactoferrin Ad-hLF for transfection of cervical cancer stem-like cells can be stably expressed in cervical cancer stem-like cells, and can inhibit the proliferation, increase apoptosis and reduce migration of cervical cancer stem-like cells.

 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words:  Stem Cells, Tissue Engineering, Cell Proliferation

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