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- W1985050468 abstract "Abstract Even though the blood–brain barrier (BBB) is compromised for angiogenesis, therapeutic agents for glioblastoma multiforme (GBM) are particularly inefficient due to the existence of a blood–tumor barrier (BTB), which hampers tumor accumulation and uptake. Integrin α v β 3 is overexpressed on glioblastoma U87 cells and neovasculture, thus making its ligands such as the RGD motif target glioblastoma in vitro and in vivo. In the present work, we have designed a modified polyethylene glycol–polyethylenimine (PEG–PEI) gene carrier by conjugating it with a cyclic RGD sequence, c(RGDyK) (cyclic arginine‐glycine‐aspartic acid‐ D ‐tyrosine‐lysine). When complexed with plasmid DNA, this gene carrier, termed RGD–PEG–PEI, formed homogenous nanoparticles with a mean diameter of 73 nm. These nanoparticles had a high binding affinity with U87 cells and facilitated targeted gene delivery against intracranial glioblastoma in vivo, thereby leading to a higher gene transfer efficiency compared to the PEG–PEI gene carrier without RGD decoration. This intracranial glioblastoma‐targeted gene carrier also enhanced the therapeutic efficacy of pORF‐hTRAIL, as evidenced by a significantly prolonged survival of intracranial glioblastoma‐bearing nude mice. Considering the contribution of glioblastoma neovasculature to the BBB under angiogenic conditions, our results demonstrated the therapeutic feasibility of treating a brain tumor through mediation of integrin α v β 3 , as well as the potential of using RGD–PEG–PEI as a targeted gene carrier in the treatment of intracranial glioblastoma." @default.
- W1985050468 created "2016-06-24" @default.
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- W1985050468 date "2011-11-09" @default.
- W1985050468 modified "2023-10-18" @default.
- W1985050468 title "Cyclic RGD-Polyethylene Glycol-Polyethylenimine for Intracranial Glioblastoma-Targeted Gene Delivery" @default.
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- W1985050468 doi "https://doi.org/10.1002/asia.201100570" @default.
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