Development and evaluation of injectable nanosized drug delivery systems for apigenin

Publication date: 5 November 2017 Source:International Journal of Pharmaceutics, Volume 532, Issue 2 Author(s): Reatul Karim, Claudio Palazzo, Julie Laloy, Anne-Sophie Delvigne, Stéphanie Vanslambrouck, Christine Jerome, Elise Lepeltier, Francois Orange, Jean-Michel Dogne, Brigitte Evrard, Catherine Passirani, Géraldine Piel The purpose of this study was to develop different injectable nanosized drug delivery systems (NDDSs) i.e. liposome, lipid nanocapsule (LNC) and polymeric nanocapsule (PNC) encapsulating apigenin (AG) and compare their characteristics to identify the nanovector(s) that can deliver the largest quantity of AG while being biocompatible. Two liposomes with different surface characteristics (cationic and anionic), a LNC and a PNC were prepared. A novel tocopherol modified poly(ethylene glycol)-b-polyphosphate block-copolymer was used for the first time for the PNC preparation. The NDDSs were compared by their physicochemical characteristics, AG release, storage stability, stability in serum, complement consumption and toxicity against a human macrovascular endothelial cell line (EAhy926). The diameter and surface charge of the NDDSs were comparable with previously reported injectable nanocarriers. The NDDSs showed good encapsulation efficiency and drug loading. Moreover, the NDDSs were stable during storage and in fetal bovine serum for extended periods, showed low complement consumption and were non-toxic to EAhy926 cells up to high concentrat...
Source: International Journal of Pharmaceutics - Category: Drugs & Pharmacology Source Type: research