Lapatinib/Paclitaxel polyelectrolyte nanocapsules for overcoming multidrug resistance in ovarian cancer
Abstract
The sonication-assisted layer-by-layer (SLBL) technology was developed to combine necessary factors for an efficient drug-delivery system: (i) control of nanocolloid size within 100 – 300 nm, (ii) high drug content (70% wt), (iii) shell biocompatibility and biodegradability, (iv) sustained controlled release, and (v) multidrug-loaded system. Stable nanocolloids of Paclitaxel (PTX) and lapatinib were prepared by the SLBL method. In a multidrug-resistant (MDR) ovarian cancer cell line, OVCAR-3, lapatinib/PTX nanocolloids mediated an enhanced cell growth inhibition in comparison with the PTX-only treatment. A series of in vitro cell assays were used to test the efficacy of these formulations. The small size and functional versatility of these nanoparticles, combined with their ability to incorporate various drugs, indicates that lapatinib/PTX nanocolloids may have in vivo therapeutic applications.
Graphical Abstract
I) A principal scheme of LbL nanoparticles formation from insolubile drugs. II) The citotoxic potential of Lapatinib / Paclitaxel polyelectrolyte nanocapsules was evaluated in a chemoresistant ovarian cancer cell line. After administration, drugs-loaded nanoparticles exerted a significant increase in the therapeutic activity compared with free paclitaxel.
Key words: Ovarian cancer, Lapatinib, Paclitaxel, Nanocapsules, Sonication-assisted Layer-by-Layer
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No conflict of interest was reported by the authors of this article.
This work was funded by the Italian Ministry of University and Research (MIUR) through the FIRB project no. RBLA03ER38, “Con il contributo del Ministero degli Affari Esteri (MAE), Direzione Generale per la promozione e la Cooperazione Sociale ” (Italy –USA Large Scale Bilateral Project “Nano-trasportatori per la terapia del cancro”). This work was also supported by the PS105 ARTI strategic project “Development and realization of bio-chip for molecular diagnostic and categorization of human pathogenic viruses (HPV, HCV)” of Apulia Region and by a contribution of “ANGELA SERRA” Foundation For Cancer Research, Parabita (Lecce, Italy). No support came from any commercial association.
PII: S1549-9634(11)00522-3
doi:10.1016/j.nano.2011.10.014
© 2011 Elsevier Inc. All rights reserved.

