Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (16): 2526-2531.doi: 10.3969/j.issn.2095-4344.2014.16.011

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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

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


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

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