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  • Title: Tailored polymer-lipid hybrid nanoparticles for the delivery of drug conjugate: dual strategy for brain targeting.
    Author: Agrawal U, Chashoo G, Sharma PR, Kumar A, Saxena AK, Vyas SP.
    Journal: Colloids Surf B Biointerfaces; 2015 Feb 01; 126():414-25. PubMed ID: 25601092.
    Abstract:
    The object of the present study was to investigate the glioma targeting propensity of folic acid (F) decorated polymer-lipid hybrid nanoparticles (PLNs) encapsulating cyclo-[Arg-Gly-Asp-D-Phe-Lys] (cRGDfK) modified paclitaxel (PtxR-FPLNs). The prepared PLNs were supposed to bypass the blood-brain barrier (BBB) efficiently and subsequently target integrin rich glioma cells. The developed formulations were characterized for size, shape, drug entrapment efficiency, and in vitro release profile. PtxR-FPLNs demonstrated highest in vitro inhibitory effect, cell apoptosis and cell uptake. Pharmacokinetics and biodistribution studies showed efficacy of PtxR-FPLNs in vivo. In vivo anti-tumor studies clearly revealed that the median survival time for Balb/C mice treated with PtxR-FPLNs (42 days) was extended significantly as compared to PtxR-PLNs (35 days), free PtxR (18 days), Ptx-FPLNs (38 days), Ptx-PLNs (30 days), free Ptx (14 days) and control group (12 days). From the results it can be concluded that the developed dual targeted nanoformulation was able to efficiently cross the BBB and significantly deliver higher amounts of drug to brain tumor for better therapeutic outcome.
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