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Cholesterylbutyrate solid lipid nanoparticles as a butyric acid prodrug
Authors:Brioschi Andrea  Zara Gian Paolo  Calderoni Sara  Gasco Maria Rosa  Mauro Alessandro
Affiliation:Istituto Auxologico Italiano, IRCCS - Department of Neurology - Ospedale S. Giuseppe, Piancavallo, PO. Box 1 - 28921 Verbania, Italy. a.brioschi@auxologico.it
Abstract:Cholesterylbutyrate (Chol-but) was chosen as a prodrug of butyric acid. Butyrate is not often used in vivo because its half-life is very short and therefore too large amounts of the drug would be necessary for its efficacy. In the last few years butyric acid's anti-inflammatory properties and its inhibitory activity towards histone deacetylases have been widely studied, mainly in vitro. Solid Lipid Nanoparticles (SLNs), whose lipid matrix is Chol-but, were prepared to evaluate the delivery system of Chol-but as a prodrug and to test its efficacy in vitro and in vivo. Chol-but SLNs were prepared using the microemulsion method; their average diameter is on the order of 100-150 nm and their shape is spherical. The antineoplastic effects of Chol-but SLNs were assessed in vitro on different cancer cell lines and in vivo on a rat intracerebral glioma model. The anti-inflammatory activity was evaluated on adhesion of polymorphonuclear cells to vascular endothelial cells. In the review we will present data on Chol-but SLNs in vitro and in vivo experiments, discussing the possible utilisation of nanoparticles for the delivery of prodrugs for neoplastic and chronic inflammatory diseases.
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