Journal of Central South University

, Volume 19, Issue 2, pp 331–339 | Cite as

Magnetic iron oxide nanoparticles carrying PTEN gene to reverse cisplatin-resistance of A549/CDDP cell lines

  • Ling-feng Min (闵凌峰)
  • Ling-ling He (何玲玲)
  • Qiong Chen (陈琼)
  • Qiao Yu (俞巧)
  • Ming-xuan Xie (谢明萱)


To evaluate the feasibility of using magnetic iron oxide nanoparticle as wild PTEN gene carrier for transfection in vitro to reverse cisplatin-resistance of A549/CDDP cells, A549/CDDP cells were transfected with the wild PTEN gene expression plasmid (pGFP-PTEN) by magnetic iron nanoparticle and lipo2000. The transfection efficiency was detected by fluorescence microscope and flow cytometer. The expression levels of PTEN mRNA and protein were detected by reverse transcription polymerase chain reaction (RT-PCR) and immunocytochemistry analysis. The effect of PTEN transfection on cell cycle enhances the sensitivity of A549/CDDP to cisplatin and nanoparticle-mediated transfection has a higher efficiency than that of the liposome-mediated group. The apoptosis level was up-regulated in PTEN transfection group. The magnetic iron oxide nanoparticle could be used as one of the ideal gene carriers for PTEN gene delivery in vitro. PTEN can be an effective target for reversing cisplatin-resistance in lung cancer.

Key words

magnetic iron oxide nanoparticle liposome transfection lung cancer PTEN cisplatin-resistance 


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Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Ling-feng Min (闵凌峰)
    • 1
  • Ling-ling He (何玲玲)
    • 1
  • Qiong Chen (陈琼)
    • 1
  • Qiao Yu (俞巧)
    • 1
  • Ming-xuan Xie (谢明萱)
    • 1
  1. 1.Department of Geriatric Medicine, Department of RespiratoryXiangya Hospital of Central South UniversityChangshaChina

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