中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (32): 5209-5213.doi: 10.3969/j.issn.2095-4344.2014.32.021

• 干细胞基础实验 basic experiments of stem cells • 上一篇    下一篇

NDRG2基因反转录病毒载体的构建及表达

欧剑锋1,任  晖2,王存邦1,白  海1   

  1. 解放军兰州军区兰州总医院,1血液病科,2乳腺科,甘肃省兰州市  730050
  • 收稿日期:2014-07-04 出版日期:2014-08-06 发布日期:2014-09-18
  • 通讯作者: 白海,博士,主任医师,解放军兰州军区兰州总医院血液病科,甘肃省兰州市 730050
  • 作者简介:欧剑锋,男,1968年生,汉族,2009年四川大学毕业,博士,主治医师,主要从事血液疾病的基础和临床研究。
  • 基金资助:

    甘肃省自然科学基金项目(1010RJZA054)

Construction and expression of NDRG2 retroviral vector

Ou Jian-feng1, Ren Hui2, Wang Cun-bang1, Bai Hai1   

  1. 1Department of Hematology, Lanzhou General Hospital of PLA, Lanzhou 730050, Gansu Province, China; 2Department of Breast Surgery, Lanzhou General Hospital of PLA, Lanzhou 730050, Gansu Province, China
  • Received:2014-07-04 Online:2014-08-06 Published:2014-09-18
  • Contact: Bai Hai, M.D., Chief physician, Department of Hematology, Lanzhou General Hospital of PLA, Lanzhou 730050, Gansu Province, China
  • About author:Ou Jian-feng, M.D., Attending physician, Department of Hematology, Lanzhou General Hospital of PLA, Lanzhou 730050, Gansu Province, China
  • Supported by:

    the Natural Science Foundation of Gansu Province, No. 1010RJZA054

摘要:

背景:NDRG2(N-Myc Downstream Regulated Gene 2)是一个新的抑癌基因,既可以增强经典抑癌通路的抗肿瘤效应,又可以对正常细胞的癌变起到监控。有关NDRG2在骨髓瘤发生中的功能和作用至今还未见报道。
目的:构建NDRG2基因反转录病毒表达载体,利用包装的病毒感染人骨髓瘤细胞系U266,检测NDRG2的表达情况。
方法:设计与合成引物,提取U266细胞的RNA,反转录和PCR扩增,经BamHⅠ和TaqⅠ双酶切,琼脂糖凝胶电泳,切胶回收进行连接转化,并再次酶切鉴定;并将构建的载体包装为反转录病毒,感染U266细胞,筛选出稳定表达NDRG2的U266细胞(U266-NDRG2)克隆扩大培养,利用Western blot实验检测筛选到的U266细胞中NDRG2的表达。
结果与结论:成功构建了携带NDRG2基因表达的重组载体pBaba-puro-NDRG2,并包装为反转录病毒,筛选到的U266细胞(U266-NDRG2)中NDRG2蛋白表达明显高于U266-cherry细胞和U266细胞。结果可见利用反转录病毒载体基因重组技术成功构建出携带相应基因的反转录病毒,为研究NDRG2在人骨髓瘤中的作用奠定了实验基础。


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


全文链接:

关键词: 干细胞, 肿瘤干细胞, 骨髓瘤细胞, 基因, 基因转染, 反转录病毒载体, NDRG2基因, 甘肃省自然科学基金

Abstract:

BACKGROUND: N-Myc downstream regulated gene 2 (NDRG2) is a new tumor supressor gene, and it can either improve anti-tumor effect by classic pathway or monitor carcinogenesis. But there is yet no report addressing NDRG2 role in myeloma occurrence.
OBJECTIVE: Using pBaba-puro retroviral vector to construct recombinant vector which carrying NDRG2 gene and pack virus, then to screen U266 cells stably expressing NDRG2.
METHODS: Primers were designed and synthesized. RNA was extracted from U266 cells, and then applied to reverse transcription for the template and latter PCR amplification. After PCR amplification and digested by Taq I and BamHI, agarose gel electrophoresis was used to detect the correct fragments. We used the vectors to package the retrovirus and infected the U266 cells. The U266 cells stably expressing NDRG2 were screened and NDRG2 protein was detected by western blot assay.
RESULTS AND CONCLUSION: The vector carrying NDRG2 was successfully constructed. The retrovirus was also packaged and infected U266 cells. The U266 cells stably expressing NDRG2 were screened. In these U266 cells, NDRG2 expression was increased significantly. The use of recombinant retrovirus vector technology can successfully construct a retrovirus carrying the corresponding gene which can be used for the following study on NDRG2 function in human myeloma.


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


全文链接:

Key words: multiple myeloma, genes, transfection, retroviridae

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