中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (16): 2526-2531.doi: 10.3969/j.issn.2095-4344.2014.16.011

• 纳米生物材料 nanobiomaterials • 上一篇    下一篇

无葡聚糖包被超顺磁性氧化铁纳米颗粒影响骨髓间充质干细胞的增殖

陈 鹏1,张 杰1,荣冬明1,韩忠宇2,袁思捷1,田 京1   

  1. 1南方医科大学珠江医院骨科中心,广东省广州市 510282;2南方医科大学第二临床医学院,广东省广州市 510515
  • 修回日期:2014-02-01 出版日期:2014-04-16 发布日期:2014-04-16
  • 通讯作者: 田京,教授,副主任医师,硕士生导师,南方医科大学珠江医院骨科中心,广东省广州市 510282
  • 作者简介:陈鹏,男,1987年生,山东省济宁市人,汉族,南方医科大学珠江医院在读硕士,主要从事关节骨病与骨质疏松研究。
  • 基金资助:

    广东省科技计划项目(2011B031800147)

Effects of non-dextran coated superparamagnetic iron oxide nanoparticles on proliferation of bone marrow mesenchymal stem cells

Chen Peng1, Zhang Jie1, Rong Dong-ming1, Han Zhong-yu2, Yuan Si-jie1, Tian Jing1   

  1. 1Department of Orthopaedics, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China; 2the Second Clinical College of Southern Medical University, Guangzhou 510515, Guangdong Province, China
  • Revised:2014-02-01 Online:2014-04-16 Published:2014-04-16
  • Contact: Tian Jing, Professor, Associate chief physician, Master’s supervisor, Department of Orthopaedics, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China
  • About author:Chen Peng, Studying for master’s degree, Department of Orthopaedics, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China
  • Supported by:

     Guangdong Science and Technology Plan Projects, No. 2011B031800147

摘要:

背景:目前关于无葡聚糖包被超顺磁性氧化铁纳米颗粒对细胞增殖活性的影响及毒性效应的研究较少。

目的探究无葡聚糖包被超顺磁性氧化铁纳米颗粒对大鼠骨髓间充质干细胞的毒性、增殖等生物学活性的影响。
方法:制备含0,25,50,75,100 mg/L无葡聚糖包被超顺磁性氧化铁纳米颗粒的培养液,采用5种质量浓度的培养液培养大鼠骨髓间充质干细胞,24 h后进行普鲁士蓝染色验证超顺磁性氧化铁纳米标记情况,CCK-8法检测细胞增殖,同时检测细胞上清液中乳酸脱氢酶活性及细胞内超氧化物歧化酶活性。

结果与结论:普鲁士蓝染色证实,50 mg/L及以上质量浓度的无葡聚糖包被超顺磁性氧化铁纳米颗粒均可100%标记细胞,但25 mg/L组尚无法达到完全标记。随着质量浓度的增高,无葡聚糖包被超顺磁性氧化铁纳米颗粒对细胞的抑制率及毒性逐渐增大,25 mg/L无葡聚糖包被超顺磁性氧化铁纳米颗粒对细胞的影响最小,50 mg/L无葡聚糖包被超顺磁性氧化铁纳米颗粒虽然对细胞生长的影响较25 mg/L组为高,但二者在统计学上无明显差别(P > 0.05)。结果表明,50 mg/L无葡聚糖包被超顺磁性氧化铁纳米颗粒对骨髓间充质干细胞标记率高,且细胞毒性及对细胞增殖活性的影响较小。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 纳米材料, 无葡聚糖包被的, 超顺磁性纳米颗粒, 骨髓间充质干细胞, 乳酸脱氢酶, 超氧化物歧化酶, 增殖活性, 细胞毒性, 普鲁士蓝染色, 标记率

Abstract:

BACKGROUND: Currently, the research about effect of non-dextran coated superparamagnetic iron oxide nanoparticles on cell proliferation and cytotoxicity is relatively much less.

OBJECTIVE: To evaluate the effects of 0, 25, 50, 75, 100 mg/L non-dextran coated superparamagnetic iron oxide nanoparticles on the proliferation and cytotoxicity of rat bone marrow mesenchymal stem cells.
METHODS: Culture media containing 0, 25, 50, 75, 100 mg/L non-dextran coated superparamagnetic iron oxide nanoparticles were prepared for culture of bone marrow mesenchymal stem cells. After 24 hours of culture, the cells were confirmed using Prussian blue staining, and cell counting was detected using cell counting kit-8. Meanwhile, lactate dehydrogenase activity in the supernatant and intracellular superoxide dismutase activity were detected.
RESULTS AND CONCLUSION: Loading of non-dextran coated superparamagnetic iron oxide nanoparticles in BMSCs was confirmed by Prussian blue staining. The percentage of cells labeled with non-dextran coated superparamagnetic iron oxide nanoparticles was up to 100% when the cells were incubated with a non-dextran coated superparamagnetic iron oxide nanoparticle solution of 50 mg/L and above, but 25 mg/L was insufficient to label all of the cells. Furthermore, as the concentration of non-dextran coated superparamagnetic iron oxide nanoparticles decreased, the cell proliferation rate decreased gradually. The 25 mg/L group had a minimum cell proliferation rate, but the 25 and 50 mg/L groups showed no statistically significant difference (P > 0.05). Therefore, 50 mg/L is considered as the appropriate concentration of non-dextran coated superparamagnetic iron oxide nanoparticles, under which, the labeling efficiency is higher and the cytotoxicity is lower.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: biocompatible materials, magnetite nanoparticles, stem cells, cell proliferation, lactate dehydrogenases

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