title: A highly efficient synthetic vector: nonhydrodynamic delivery of DNA to hepatocyte nuclei in vivo.
abstract: Multifunctional membrane-core nanoparticles, composed of calcium phosphate cores, arginine-rich peptides, cationic and PEGylated lipid membranes, and galactose targeting ligands, have been developed as synthetic vectors for efficient nuclear delivery of plasmid DNA and subsequent gene expression in hepatocytes in vivo. Targeted particles exhibited rapid and extensive hepatic accumulation and were predominantly internalized by hepatocytes, while the inclusion of such peptides in LCP was sufficient to elicit high degrees of nuclear translocation of plasmid DNA. Monocyclic CR8C significantly enhanced in vivo gene expression over 10-fold more than linear CR8C, likely due to a release-favoring mechanism of the DNA/peptide complex. Though 100-fold lower in activity than that achieved via hydrodynamic injection, this formulation presents as a much less invasive alternative. To our knowledge, this is the most effective synthetic vector for liver gene transfer.
authors: The Center for Nanotechnology in Drug Delivery, Division of Molecular Pharmaceutics, Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA. yunxiahu@yic.ac.cn
authors: Yunxia
authors: Y
authors: Hu
authors: Matthew T
authors: MT
authors: Haynes
authors: Yuhua
authors: Y
authors: Wang
authors: Feng
authors: F
authors: Liu
authors: Leaf
authors: L
authors: Huang
mesh_terms: D000818:Animals; D002130:Calcium Phosphates / Q000737:chemistry; D002467:Cell Nucleus / Q000235:genetics / Q000378:metabolism*; D004247:DNA / Q000235:genetics / Q000378:metabolism*; D004337:Drug Carriers / Q000737:chemistry*; D005260:Female; D022781:Hepatocytes / Q000166:cytology*; D008081:Liposomes / Q000737:chemistry; D051379:Mice; D008810:Mice, Inbred C57BL; D013997:Time Factors; D014162:Transfection / Q000379:methods*
chemical_list: D002130:Calcium Phosphates; D004337:Drug Carriers; D008081:Liposomes; D004247:DNA; C020243:calcium phosphate
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