Title
Full factorial design, physicochemical characterisation and biological assessment of cyclosporine A loaded cationic nanoparticles
Author
Faculty/Department
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences. Pharmacy
Publication type
article
Publication
Stuttgart ,
Subject
Pharmacology. Therapy
Source (journal)
European journal of pharmaceutics and biopharmaceutics. - Stuttgart
Volume/pages
82(2012) :1 , p. 27-35
ISSN
0939-6411
ISI
000309627200003
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Cyclosporine A loaded poly(lactide-co-glycolide) nanoparticles coated with chitosan were prepared using the o/w emulsification solvent evaporation method. A 2(3) full factorial design was used to investigate the effect of 3 preparation parameters on the particle size, polydispersity index, zeta potential and drug release. In vitro experiments were performed in order to evaluate the cytotoxicity and anti-inflammatory activity of the developed nanoparticles. Particle sizes varied from 156 nm to 314 nm, and polydispersity index values of 0.07-0.56 were obtained depending on the different preparation parameters. All nanoparticles showed positive zeta potential values. Nanoparticles prepared with the highest concentration chitosan retained a positive zeta potential after dispersion in simulated lachrymal fluid, which supports the possibility of an electrostatic interaction between these particles and the negatively charged mucus layer at the eye. The in vitro release profile of cyclosporine A from the chitosan-coated nanoparticles was strongly dependent on the release medium used. None of the cationic nanoparticle formulations showed significant cytotoxicity compared to the negative control using human epithelial cells (HaCaT). Cyclosporine A encapsulated in the various nanoparticle formulations remained anti-inflammatory active as significant suppression of interleukine-2 secretion in concanavalin A stimulated Jurkat T cells was observed. (c) 2012 Elsevier B.V. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/4cdab7/2dd3514.pdf
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