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Nanoemulsions containing a synthetic chalcone as an alternative for treating cutaneous leshmaniasis : optimization using a full factorial design

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Nanoemulsions containing a synthetic chalcone as an alternative for treating cutaneous leshmaniasis : optimization using a full factorial design

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Título Nanoemulsions containing a synthetic chalcone as an alternative for treating cutaneous leshmaniasis : optimization using a full factorial design
Autor Mattos, Cristiane Bastos de
Argenta, Débora Fretes
Melchiades, Gabriela de Lima
Cordeiro, Marlon N. S.
Tonini, Maiko L.
Moraes, Milene H. de
Weber, Tanara Beatriz
Roman, Silvane Souza
Nunes, Ricardo José
Teixeira, Helder Ferreira
Steindel, Mário
Koester, Leticia Scherer
Abstract Nanoemulsions are drug delivery systems that may increase the penetration of lipophilic compounds through the skin, enhancing their topical effect. Chalcones are compounds of low water solubility that have been described as promising molecules for the treatment of cutaneous leishmaniasis (CL). In this context, the aim of this work was to optimize the development of a nanoemulsion containing a synthetic chalcone for CL treatment using a 22 full factorial design. The formulations were prepared by spontaneous emulsification and the experimental design studied the influence of two independent variables (type of surfactant – soybean lecithin or sorbitan monooleate and type of co-surfactants – polysorbate 20 or polysorbate 80) on the physicochemical characteristics of the nanoemulsions, as well as on the skin permeation/retention of the synthetic chalcone in porcine skin. In order to evaluate the stability of the systems, the antileishmanial assay was performed against Leishmania amazonensis 24 hours and 60 days after the preparation of the nanoemulsions. The formulation composed of soybean lecithin and polysorbate 20 presented suitable physicochemical characteristics (droplet size 171.9 nm; polydispersity index 0.14; zeta potential -39.43 mV; pH 5.16; and viscosity 2.00 cP), drug content (91.09%) and the highest retention in dermis (3.03 μg⋅g-1) – the main response of interest – confirmed by confocal microscopy. This formulation also presented better stability of leishmanicidal activity in vitro against L. amazonensis amastigote forms (half maximal inhibitory concentration value 0.32±0.05 μM), which confirmed the potential of the nanoemulsion soybean lecithin and polysorbate 20 for CL treatment.
Contido em International Journal of Nanomedicine. Auckland, Dove Medical. Vol. 10 (2015), p. 5529-5542
Assunto Farmácia
[en] Chalcone
[en] Full factorial
[en] Leishmaniasis
[en] Nanoemulsion
[en] Skin permeation
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/140191
Arquivos Descrição Formato
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