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- W2048653640 abstract "RNA interference (RNAi) is being widely explored as a means of tumour therapy due to the specific and potent silencing of targeted genes. However, in vivo delivery of RNAi effectors, such as small interfering RNA (siRNA) and detection of delivery is fraught with problems. Here, we describe novel theranostic PEGylated siRNA nanoparticles termed liposome-entrapped siRNA (LEsiRNA) nanoparticles. Our LEsiRNA nanoparticles are MR sensitive, contain labels for fluorescence microscopy/histology and promote functional siRNA delivery to tumours in mice leading to a significant reduction in both Survivin expression and tumour growth. LEsiRNA nanoparticles, administered by intravenous injection, were shown to accumulate in xenograft tumours by MR contrast image enhancements 24 h post-administration. Fluorescence microscopy was used to corroborate the MR results and simultaneously demonstrate co-localisation of nanoparticles and siRNA within the tumours. The LEsiRNA nanoparticle-mediated delivery of the anti-cancer Survivin siRNA causes significant reduction in tumour growth when compared to controls. Our results suggest that LEsiRNA nanoparticles can be valuable as an in vivo delivery agent for siRNA therapy to tumours." @default.
- W2048653640 created "2016-06-24" @default.
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- W2048653640 date "2011-01-01" @default.
- W2048653640 modified "2023-10-17" @default.
- W2048653640 title "Novel multifunctional nanoparticle mediates siRNA tumour delivery, visualisation and therapeutic tumour reduction in vivo" @default.
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- W2048653640 doi "https://doi.org/10.1016/j.jconrel.2010.09.020" @default.
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