中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (9): 1346-1351.doi: 10.3969/j.issn.2095-4344.2017.09.007

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

白细胞介素12基因修饰骨髓间充质干细胞对卵巢癌细胞生长的影响

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
  • 出版日期:2017-03-28 发布日期:2017-03-31
  • 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,湖北省石首市人,汉族,2003年河北医科大学毕业,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)

Effect of interleukin-12 gene modified bone marrow mesenchymal stem cells on the growth of ovarian cancer cells

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

  1. First Affiliated Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • Online:2017-03-28 Published:2017-03-31
  • Contact: Meng Ya-li, Chief physician, First Affiliated Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • About author:Zhang Xia, Master, Attending physician, First Affiliated Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • Supported by:

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

摘要:

文章快速阅读:

文题释义:
重组腺病毒:
腺病毒是目前最高效可靠的重组病毒表达系统之一,可用于在哺乳细胞中瞬时及高水平表达shRNA或目的蛋白。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。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。
基因转染技术:是指通过物理或生物方法将目的基因导入到真核细胞的基因组中,使其调控靶细胞向特定的方向表达。常用的方法有非病毒方法和病毒载体方法,非病毒方法有微粒子轰击法、脂质体转染法、电穿孔法等,病毒方法有反转录病毒法、慢病毒法、腺病毒法及腺相关病毒法。 

 

摘要

背景:骨髓间充质干细胞具有来源广泛、免疫原性低等优点,尤其易于导入和表达外源基因,作为抗肿瘤基因治疗的载体具有明显优越性。
目的:探讨骨髓间充质干细胞负载白细胞介素12重组腺病毒对卵巢癌细胞增殖、细胞周期和细胞凋亡的影响。
方法:腺病毒介导白细胞介素12基因转染骨髓间充质干细胞,RT-PCR和Western Blotting测定骨髓间充质干细胞中白细胞介素12 mRNA和蛋白的表达,ELISA法测定细胞上清液中白细胞介素12水平。将SKOV3卵巢癌细胞与白细胞介素12重组腺病毒转染的骨髓间充质干细胞上清液共培养,对照组为SKOV3细胞与未转染骨髓间充质干细胞上清液共培养,MTT法测定SKOV3细胞增殖活性,流式细胞仪检测SKOV3细胞周期和细胞凋亡率。

结果与结论:①腺病毒介导白细胞介素12基因成功转染到骨髓间充质干细胞中,转染后细胞有白细胞介素12 mRNA和蛋白的表达,空病毒载体组和空白对照组骨髓间充质干细胞未检测到白细胞介素12表达;②培养48 h,白细胞介素12组骨髓间充质干细胞上清液中白细胞介素12水平为(68.78±12.35) μg/L,空病毒载体组和空白对照组骨髓间充质干细胞上清液中未检测到白细胞介素12;③白细胞介素12转染组骨髓间充质干细胞上清液对SKOV3细胞增殖有抑制作用,细胞增殖抑制率随时间的延长而增加(P < 0.05)。转染组SKOV3细胞G1期细胞比例高于对照组(P < 0.05),G2期细胞比例低于对照组(P < 0.05)。转染组SKOV3细胞凋亡率高于对照组(P < 0.05);④结果表明,转染白细胞介素12基因的骨髓间充质干细胞能够表达白细胞介素12,其培养上清液能够抑制卵巢癌细胞增殖并诱导其凋亡。

 

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, 骨髓干细胞, 白细胞介素12, 基因转染, 骨髓间充质干细胞, 卵巢癌, 增殖, 凋亡

Abstract:

BACKGROUND: Bone marrow mesenchymal stem cells are characterized by wide sources and low immunogenicity. Especially, these cells are easy to import and express foreign genes, and thus have obvious superiorities as anti-tumor gene therapy vectors.

OBJECTIVE: To investigate the effects of interleukin-12 gene modified bone marrow mesenchymal stem cells on the proliferation, cell cycle and apoptosis of ovarian cancer cells.
METHODS: Interleukin-12 recombinant adenovirus vector was used to transfect bone marrow mesenchymal stem cells. Then, the expression of interleukin-12 mRNA and protien in transfected bone marrow mesenchymal stem cells was detected by RT-PCR and western blot assay, respectively. The level of interleukin-12 in cell supernatant was determined by ELISA. The SKOV3 cells were co-cultured with the supernatant of bone marrow mesenchymal stem cells transfected with (transfection group) or without (control group) interleukin-12 recombinant adenovirus vector. The proliferation of SKOV3 cells was determined by MTT assay. Flow cytometry was used to detect the cell cycle and apoptosis of SKOV3 cells.

RESULTS AND CONCLUSION: RT-PCR and western blot results showed that interleukin-12 mRNA and protein were expressed in transfected bone marrow mesenchymal stem cells, but not found in empty vector group and blank control group. ELISA results showed that the content of interleukin-12 in the supernatant of bone marrow mesenchymal stem cells was (68.78±12.35) μg/L in the interleukin-12 transfection group after 48 hours culture, and no interleukin-12 expression was detected in the empty vector group and the blank control group. Interleukin-12-transfected bone marrow mesenchymal stem cells significantly inhibited the proliferation of SKOV3 cells, and the proliferation inhibition rate was increased with time (P < 0.05). The proportion of G1-phased SKOV3 cells was higher in the transfection group than in the control group (P < 0.05), and the percentage of G2-phased SKOV3 cells was lower in the transfection group than in the control group (P < 0.05). The apoptosis rate of SKOV3 cells in the transfection group was higher than that in the control group (P < 0.05). Our experimental findings indicate that bone marrow mesenchymal stem cells transfected with interleukin-12 recombinant adenovirus vector can express interleukin-12, inhibit the proliferation and induce apoptosis of ovarian cancer 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: Ovarian Neoplasms, Bone Marrow, Mesenchymal Stem Cells, Interleukin-12, Tissue Engineering

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