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- W2021594828 abstract "Nanotechnology offers a new platform for therapeutic delivery of antiretrovirals to the central nervous system (CNS). Nanoformulated antiretroviral drugs offer multifunctionality, that is, the ability to package multiple diagnostic and therapeutic agents in the same nanocompose, along with the added provisions of site-directed delivery, delivery across the blood–brain-barrier (BBB), and controlled release of therapeutics. We studied the viability of dendrimers and dendriplexes in human primary astrocytes, as well as their uptake by these astrocytes. Functional validation was performed by using specific siRNA against HIV-1 Nef to interfere to HIV-1 infectivity. A high efficiency in Nef silencing, reducing HIV-1 infectivity was observed in astrocytes treated with dendriplexes compared with control or siRandom treated astrocytes. More interestingly, we studied the biodistribution of the second generation of carbosilane dendrimer loaded with FITC (2G-(SNMe3I)11-FITC) in vivo, in BALB/c mice. Dendriplexes were inoculated into BALB/c mice by the retro-orbital venous plexus, and their localization was determined after 1 and 24 h post-injection. Dendriplexes were detected inside the brain by a sensitive imaging system of fluorescent imaging in vivo (IVIS Lumina), and by confocal microscopy analysis of sections of OCT-embedded tissues. The 2G-(SNMe3I)11-FITC dendrimer transported efficiently siRNA into the brain, crossing the BBB. Moreover, this dendrimer successfully delivered and transfected siRNA to HIV-infected human primary astrocytes and achieved gene silencing without causing cytotoxicity. These results highlight the potential of this nanoformulation in the treatment of neurological disorders." @default.
- W2021594828 created "2016-06-24" @default.
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- W2021594828 date "2015-02-01" @default.
- W2021594828 modified "2023-10-15" @default.
- W2021594828 title "In vivo delivery of siRNA to the brain by carbosilane dendrimer" @default.
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- W2021594828 doi "https://doi.org/10.1016/j.jconrel.2014.12.042" @default.
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