Efficient gene transfer into rat mesenchymal stem cells with cationized Lycium barbarum polysaccharides nanoparticles

Efficient gene transfer into rat mesenchymal stem cells with cationized Lycium barbarum polysaccharides nanoparticles
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阳离子化枸杞多糖纳米粒子将基因高效导入大鼠间充质干细胞

DOI:
10.1016/j.carbpol.2011.06.073
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发表时间:
2011-10
影响因子:
11.2
通讯作者:
Xu, Ximing
Xu, Ximing
中科院分区:
化学1区
文献类型:
--
作者:
Wang, Miao;Deng, Wenwen;Fu, Min;Cao, Xia;Yang, Yan;Su, Weiyan;Yu, Jiangnan;Xu, Ximing

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采用不同胺类化合物制备了一种新型的基因载体--阳离子枸杞多糖(cLBP)纳米粒,用于转化生长因子β 1(TGFβ 1)质粒DNA的非病毒递送,并测定了该纳米粒对大鼠骨髓间充质干细胞的体外转染效率。cLBP-质粒TGFβ-1纳米粒直径为160- 330 nm,可抑制质粒TGFβ-1在电泳中的迁移。与精胺-LBP和聚乙烯亚胺-LBP纳米结构相比,乙二胺-LBP纳米颗粒表现出更好的转染效率。在McLBP/MpTGFβ-1比率为80时,乙二胺-LBP介导的最大TGFβ-1表达在血清或无血清培养基中远高于PEI(p<0.001)和Lipofectamine™2000(p<0.001),并且活细胞成像的细胞摄取与基因转导效果良好一致。转染的细胞具有突出的细胞活力,表明cLBP的低细胞毒性。结果表明cLBP是一种很有前途的基因传递载体。
A new gene vector, cationized Lycium barbarum polysaccharides (cLBP) nanoparticles, prepared with different amine compounds for non-viral delivery of plasmid DNA encoding for transforming growth factor beta 1 (TGFβ-1) was developed and the efficiency of these nanoparticles to transfect rat mesenchymal stem cells in vitro was determined. The spherical cLBP-plasmid TGFβ-1 nanoparticles were 160–330nm in diameter and can retard the migration of plasmid TGFβ-1 in electrophoresis. Ethylenediamine-LBP nanoparticles manifested better transfection efficiency compared with spermine-LBP and polyethylenimine-LBP nanostructures. At McLBP/MpTGFβ-1ratio 80, maximum TGFβ-1 expression mediated by Ethylenediamine-LBP was much higher than both PEI (p<0.001) and Lipofectamine™2000 (p<0.001) in serum or serum-free media, and the cellular uptake with live cell imaging was in good agreement with the gene transducing effect. Transfected cells were of outstanding cell viability, indicating the low cytotoxicity of cLBP. The results suggested cLBP could be a promising carrier for gene delivery.
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