Nanoparticles for gene transfer to human embryonic stem cell colonies.
Nanoparticles for gene transfer to human embryonic stem cell colonies.
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DOI:
10.1021/nl8012665
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发表时间:
2008-10
期刊:
影响因子:
10.8
通讯作者:
Anderson DG
中科院分区:
文献类型:
--
作者:
Green JJ;Zhou BY;Mitalipova MM;Beard C;Langer R;Jaenisch R;Anderson DG
We develop biodegradable polymeric nanoparticles to facilitate non-viral gene transfer to human embryonic stem cells (hESC). Small (~200 nm) and positively charged (~10 mV) particles are formed by the self-assembly of cationic, hydrolytically-degradable, poly(beta-amino esters) and plasmid DNA. Varying the end-group of the polymer can tune the biophysical properties of the resulting nanoparticles and their gene delivery efficacy. An OCT4 driven GFP hES cell line was created to allow rapid identification of nanoparticles that facilitate gene transfer while maintaining an hESC undifferentiated state. Using this cell system, we synthesized nanoparticles that have gene delivery efficacy up to four times higher than the leading commercially available transfection agent, Lipofectamine 2000. Importantly, these materials have minimal toxicity and do not adversely affect hES colony morphology or cause non-specific differentiation.
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