中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (17): 2650-2655.doi: 10.3969/j.issn.2095-4344.0515

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

腺病毒介导增强型绿色荧光蛋白基因转染兔骨髓间充质干细胞的效率及毒性

武成聪1,荣 树1,任 静1,吴 铮1,刘 涛1,刘克廷1,朱 博1,黄合飞1,王 芳2   

  1. 1曲靖市第一人民医院骨一科,云南省曲靖市 655000;2曲靖市第二人民医院病理科,云南省曲靖市 655000
  • 修回日期:2018-02-01 出版日期:2018-06-18 发布日期:2018-06-18
  • 通讯作者: 王芳,硕士,医师,曲靖市第二人民医院病理科,云南省曲靖市 655000
  • 作者简介:武成聪,男,1987年生,汉族,2014年桂林医学院毕业,硕士,医师,主要从事骨与软骨组织工程、生物材料学研究。
  • 基金资助:

    国家自然科学基金资助项目(31160199);云南省教育厅科学研究基金项目(2016ZDX074)

Transferring adenovirus vector-mediated enhanced green fluorescent protein gene into rabbit bone marrow mesenchymal stem cells: effectiveness and toxicity

Wu Cheng-cong1, Rong Shu1, Ren Jing1, Wu Zheng1, Liu Tao1, Liu Ke-ting1, Zhu Bo1, Huang He-fei1, Wang Fang2   

  1. 1First Department of Orthopaedics, Qujing No. 1 Hospital, Qujing 655000, Yunnan Province, China; 2Department of Pathology, Qujing Second Hospital, Qujing 655000, Yunnan Province, China
  • Revised:2018-02-01 Online:2018-06-18 Published:2018-06-18
  • Contact: Wang Fang, Master, Physician, Department of Pathology, Qujing Second Hospital, Qujing 655000, Yunnan Province, China
  • About author:Wu Cheng-cong, Master, Physician, First Department of Orthopaedics, Qujing No. 1 Hospital, Qujing 655000, Yunnan Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 31160199; the Science Research Foundation of the Department of Education of Yunnan Province, No. 2016ZDX074

摘要:

文章快速阅读:

文题释义:
感染复数:
微生物学中定义为感染时噬菌体与细菌/细胞个数之比,即平均每个细菌感染噬菌体的数量。感染复数用于病毒感染细胞的研究中,其含义是感染时病毒与细胞数量的比值。
Runt相关转录因子2(Runt-related transcription factor 2,Runx2):为Runt相关转录因子家族成员,优先表达成骨细胞,是间充质干细胞向成骨细胞定向分化和成熟的标志,成骨细胞和骨形成中关键的转录因子,在成骨分化信号途径中发挥重要作用。

 

摘要
背景:
重组腺病毒对细胞生长、存活存在一定的毒性反应,其最适感染复数的确定相关研究较少。
目的:研究重组腺病毒在不同感染复数下其转染效率、细胞毒性及对骨髓间充质干细胞成骨分化潜能的影响。
方法:携带增强型绿色荧光蛋白基因的重组腺毒载体分别以感染复数为0,50,100,150,200,250转染第5代骨髓间充质干细胞。转染24 h后观察细胞形态,锥虫蓝染色计数死亡率;转染48 h后荧光倒置显微镜下计算转染率,qPCR检测EGFP及Runx2基因表达量。MTT法评价不同感染复数转染对细胞活性的影响,确定最佳感染复数。
结果与结论:①随感染复数值增加,骨髓间充质干细胞贴壁能力减弱,部分细胞老化、死亡;②以感染复数值为0,50,100,150,200,250转染24 h,其细胞死亡率依次为5.80%,6.67%,7.95%,7.76%,10.35%,11.18%,死亡率与感染复数值成正相关;③当感染复数值为100时即可达到最大转染效率,但当感染复数增大至200时,细胞活性即受到影响;当感染复数达到250时,骨髓间充质干细胞成骨分化潜能受到影响;④通过上述结果可以认为,腺病毒转染兔骨髓间充质干细胞的感染复数安全范围为50-150,其最适感染复数为100。

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: 0000-0002-4326-1433(武成聪)

关键词: 干细胞, 骨髓间充质干细胞, 腺病毒, 感染复数, 细胞毒性, 国家自然科学基金

Abstract:

BACKGROUND: The recombinant adenovirus has certain toxic reactions to cell growth and survival, but the determination of the optimal multiplicity of infection (MOI) is not well documented.
OBJECTIVE: To study the effectiveness and toxicity of transfection of bone marrow mesenchymal stem cells (BMSCs) by adenovirus vectors with different MOIs, and to explore the effect on osteogenic capability of the cells.
METHODS: BMSCs at passage 5 were infected with enhanced green fluorescent protein (EGFP) via adenovirus vectors with different MOI (0, 50, 100, 150, 200 and 250). Cell morphology and mortality rate were observed and calculated using trypan blue staining method at 24 hours after cell transfection. The transfection efficiency and the relative mRNA expression of EGFP and Runx2 were analyzed respectively by inverted florescent microscopy and real-time quantitative PCR at 48 hours after cell transfection. The activity of BMSCs transfected with different MOIs was evaluated by MTT, and the optimal MOI was determined thereafter.
RESULTS AND CONCLUSION: With the increase of MOI, BMSCs showed decreased adherent ability, and even some cells aged and died. The mortality rate of BMSCs transfected for 24 hours at a MOI of 0 to 250 was 5.80%, 6.67%, 7.95%, 7.76%, 10.35% and 11.18%, respectively, indicating that the mortality rate of BMSCs is positively correlated with the MOI. The transfection efficiency changed insignificantly when the MOI was greater than 100. On the contrary, the cellular viability and osteogenic differentiation capability of rabbit BMSCs were receded when the MOI level was up to 200-250. The study discovered that the suitable scope of MOI to transfect BMSCs is 50- 150, and the optimal MOI is 100.

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: Bone Marrow, Mesenchymal Stem Cells, Adenoviridae, Green Fluorescent Proteins, Tissue Engineering

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