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(Coixan polysaccharide) ‐graft‐ Polyethylenimine Folate for Tumor‐Targeted Gene Delivery
Author(s) -
Jiang Qiying,
Shi Peihua,
Li Chunyan,
Wang Qingqing,
Xu Fujian,
Yang Wantai,
Tang Guping
Publication year - 2011
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.201000350
Subject(s) - polyethylenimine , transfection , gene delivery , cytotoxicity , in vivo , in vitro , microbiology and biotechnology , hela , chemistry , dna condensation , genetic enhancement , biochemistry , biology , gene
CP‐PEI‐FA was prepared as an effective vector for in vitro and in vivo tumor‐targeted gene delivery. The structures of the polymers were characterized, and their DNA condensation capability, particle sizes, zeta potentials, cytotoxicity and in vitro/in vivo transfection were examined. The cytotoxicity of CP‐PEI‐FA was significantly lower than that of PEI 25 kDa and close to that of PEI 1200. The in vitro transfection of CP‐PEI‐FA was tested in C6 and HeLa cells (FR‐positive cells) and A549 cells (FR‐negative cells). CP‐PEI‐FA showed a high targeting specificity and good gene transfection efficiency in FR‐positive cells. These results indicate that CP‐PEI‐FA is a safe and effective polyplex‐forming agent for both in vitro and in vivo transfection of plasmid DNA.