Journal
PHARMACEUTICS
Volume 11, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/pharmaceutics11060249
Keywords
drug delivery system; microcapsules; photodegradation; ultrasound; antioxidant; site-specific delivery; resveratrol
Categories
Funding
- Programa de axudas a etapa predoutoral da Xunta de Galicia, Conselleria de Cultura, Educacion e Ordenacion Universitaria program
- FSE Galicia 2014-2020
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Intra-articular administration of drugs to the joint in the treatment of joint disease has the potential to minimize the systemic bioavailability and the usual side-effects associated with oral drug administration. In this work, a drug delivery system is proposed to achieve an anti-inflammatory local effect using resveratrol (RSV). This study aims to develop microcapsules made of poly-(epsilon -caprolactone) (PCL) by ultrasonic atomization to preserve the antioxidant activity of RSV, to prevent its degradation and to suppress the inflammatory response in activated RAW 264.7 macrophages. An experimental design was performed to build a mathematical model that could estimate the effect of nozzle power and polymer concentration on particle size and encapsulation efficiency. RSV-loaded microcapsules showed adequate morphology, particle size, and loading efficiency properties. RSV formulations exhibited negligible cytotoxicity and an efficient amelioration of inflammatory responses, in terms of Nitric Oxide (NO), ROS (Reactive Oxygen Species), and lipid peroxidation in macrophages. Thus, RSV-loaded microcapsules merit consideration as a drug delivery system suitable for intra-articular administration in inflammatory disorders affecting the joint.
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