Development and evaluation of injectable nanosized drug delivery systems for apigenin

Karim Reatul, Claudio Palazzo, Julie Laloy, Anne-Sophie Delvigne, Stéphanie Vanslambrouck, Christine Jérôme, Elise Lepeltier, Francois Orange, Jean-Michel Dogne, Brigitte Evrard, Catherine Passirani, Géraldine Piel

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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 concentrations. Therefore, they can be considered as potential injectable nanocarriers of AG. Due to less pronounced burst effect and extended release characteristics, the nanocapsules could be favorable approaches for achieving prolonged pharmacological activity of AG using injectable NDDS.
Original languageEnglish
Pages (from-to)757-768
Number of pages12
JournalInternational Journal of Pharmaceutics
Issue number2
Publication statusPublished - 5 Nov 2017


  • Apigenin
  • Liposome
  • lipid nanocapsule
  • polymeric nanocapsule
  • injectable nanocarrier
  • Lipid nanocapsule
  • Polymeric nanocapsule
  • Injectable nanocarrier


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