Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers

Yan Chen, Lei Zhou, Ling Yuan, Zhen-hai Zhang, Xuan Liu, Qingqing WuKey Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, Jiangsu, ChinaBackground: Nanostructured lipid carriers (NLCs) are attractive materials for topical drug...

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Autores principales:	Chen Y, Zhou L, Yuan L, Zhang ZH, Liu X, Wu QQ
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2012
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/8e5bd877647f4598ab1fcda93164efa6
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spelling	oai:doaj.org-article:8e5bd877647f4598ab1fcda93164efa62021-12-02T01:35:39ZFormulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers1176-91141178-2013https://doaj.org/article/8e5bd877647f4598ab1fcda93164efa62012-06-01T00:00:00Zhttp://www.dovepress.com/formulation-characterization-and-evaluation-of-in-vitro-skin-permeatio-a10160https://doaj.org/toc/1176-9114https://doaj.org/toc/1178-2013Yan Chen, Lei Zhou, Ling Yuan, Zhen-hai Zhang, Xuan Liu, Qingqing WuKey Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, Jiangsu, ChinaBackground: Nanostructured lipid carriers (NLCs) are attractive materials for topical drug delivery, and in a previous study, we demonstrated that NLCs loaded with tripterine enhance its deposition. However, the surface charge of nanoparticles influences percutaneous drug penetration. Therefore, we aimed to evaluate the influence of the surface charge of NLCs on in vitro skin permeation and in vivo pharmacodynamics of tripterine and optimize tripterine-loaded NLCs for the treatment of skin diseases.Methods: Different solid and liquid matrices were selected to prepare cationic, anionic, and neutral NLCs by the solvent evaporation method. The in vitro studies were evaluated by using Franz diffusion cells. The effect of surface-charged NLCs on cellular uptake was appraised across HaCaT and B16BL6 cells. The in vitro and in vivo anticancer activity of surface-charged NLCs was evaluated in B16BL6 cells and melanoma-bearing mice, respectively.Results: The average particle sizes of the cationic, anionic, and neutral NLCs were 90.2 &plusmn; 9.7, 87.8 &plusmn; 7.4, and 84.5 &plusmn; 10.2 nm, respectively; their encapsulation efficiencies were 64.3% &plusmn; 5.1%, 67.8% &plusmn; 4.4%, and 72.5% &plusmn; 4.9%, respectively. In vitro studies showed delayed tripterine release, and the order of skin permeation was cationic NLCs &gt; anionic NLCs &gt; neutral NLCs. Further, in vitro cytotoxicity studies showed that the cationic NLCs had the highest (P &lt; 0.05) inhibition ratio in B16BL6 (melanoma) cells. Moreover, in vivo pharmacodynamic experiments in melanoma-bearing mice indicated that the cationic NLCs had significantly higher (P &lt; 0.05) antimelanoma efficacy than the anionic and neutral NLCs.Conclusion: The surface charge of NLCs has a great influence on the skin permeation and pharmacodynamics of tripterine. Cationic tripterine-loaded NLCs could enhance the percutaneous penetration and antimelanoma efficacy of tripterine and offer several advantages over tripterine alone. Therefore, they are promising carriers of tripterine for topical antimelanoma therapy.Keywords: surface charge, nanostructured lipid carriers, tripterine, percutaneous penetration, cellular uptake, antimelanoma efficacyChen YZhou LYuan LZhang ZHLiu XWu QQDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2012, Iss default, Pp 3023-3033 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Chen Y Zhou L Yuan L Zhang ZH Liu X Wu QQ Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers
description	Yan Chen, Lei Zhou, Ling Yuan, Zhen-hai Zhang, Xuan Liu, Qingqing WuKey Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, Jiangsu, ChinaBackground: Nanostructured lipid carriers (NLCs) are attractive materials for topical drug delivery, and in a previous study, we demonstrated that NLCs loaded with tripterine enhance its deposition. However, the surface charge of nanoparticles influences percutaneous drug penetration. Therefore, we aimed to evaluate the influence of the surface charge of NLCs on in vitro skin permeation and in vivo pharmacodynamics of tripterine and optimize tripterine-loaded NLCs for the treatment of skin diseases.Methods: Different solid and liquid matrices were selected to prepare cationic, anionic, and neutral NLCs by the solvent evaporation method. The in vitro studies were evaluated by using Franz diffusion cells. The effect of surface-charged NLCs on cellular uptake was appraised across HaCaT and B16BL6 cells. The in vitro and in vivo anticancer activity of surface-charged NLCs was evaluated in B16BL6 cells and melanoma-bearing mice, respectively.Results: The average particle sizes of the cationic, anionic, and neutral NLCs were 90.2 &plusmn; 9.7, 87.8 &plusmn; 7.4, and 84.5 &plusmn; 10.2 nm, respectively; their encapsulation efficiencies were 64.3% &plusmn; 5.1%, 67.8% &plusmn; 4.4%, and 72.5% &plusmn; 4.9%, respectively. In vitro studies showed delayed tripterine release, and the order of skin permeation was cationic NLCs &gt; anionic NLCs &gt; neutral NLCs. Further, in vitro cytotoxicity studies showed that the cationic NLCs had the highest (P &lt; 0.05) inhibition ratio in B16BL6 (melanoma) cells. Moreover, in vivo pharmacodynamic experiments in melanoma-bearing mice indicated that the cationic NLCs had significantly higher (P &lt; 0.05) antimelanoma efficacy than the anionic and neutral NLCs.Conclusion: The surface charge of NLCs has a great influence on the skin permeation and pharmacodynamics of tripterine. Cationic tripterine-loaded NLCs could enhance the percutaneous penetration and antimelanoma efficacy of tripterine and offer several advantages over tripterine alone. Therefore, they are promising carriers of tripterine for topical antimelanoma therapy.Keywords: surface charge, nanostructured lipid carriers, tripterine, percutaneous penetration, cellular uptake, antimelanoma efficacy
format	article
author	Chen Y Zhou L Yuan L Zhang ZH Liu X Wu QQ
author_facet	Chen Y Zhou L Yuan L Zhang ZH Liu X Wu QQ
author_sort	Chen Y
title	Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers
title_short	Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers
title_full	Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers
title_fullStr	Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers
title_full_unstemmed	Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers
title_sort	formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers
publisher	Dove Medical Press
publishDate	2012
url	https://doaj.org/article/8e5bd877647f4598ab1fcda93164efa6
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Formulation, characterization, and evaluation of in vitro skin permeation and in vivo pharmacodynamics of surface-charged tripterine-loaded nanostructured lipid carriers

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