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  • surface modified magnetic nanoparticles for immuno-gene therapy of murine mammary adenocarcinoma

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1391/01/01
    • تاریخ انتشار در تی پی بین: 1391/01/01
    • تعداد بازدید: 660
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     cancer immuno-gene therapy is an introduction of nucleic acids encoding immunostimulatory proteins, such as cytokine interleukin 12 (il-12), into somatic cells to stimulate an immune response against a tumor. various methods can be used for the introduction of nucleic acids into cells; magnetofection involves binding of nucleic acids to magnetic nanoparticles with subsequent exposure to an external magnetic field. here we show that surface modified superparamagnetic iron oxide nanoparticles (spions) with a combination of polyacrylic acid (paa) and polyethylenimine (pei) (spions-paa-pei) proved to be safe and effective for magnetofection of cells and tumors in mice. magnetofection of cells with plasmid dna encoding reporter gene using spions-paa-pei was superior in transfection efficiency to commercially available spions. magnetofection of murine mammary adenocarcinoma with plasmid dna encoding il-12 using spions-paa-pei resulted in significant antitumor effect and could be further refined for cancer immuno-gene therapy.

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