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Abstract: Solid lipid particles (SLPs) can sustainably encapsulate and release therapeutic agents over long periods, modifying their biodistribution, toxicity, and side effects. To date, no studies have been reported using SLPs loaded with doxorubicin chemotherapy for the treatment of metastatic cancer. This study characterizes the effect of doxorubicin-loaded carnauba wax particles in the treatment of lung metastatic malignant melanoma in vivo. Compared with the free drug, intravenously administrated doxorubicin-loaded SLPs significantly reduce the number of pulmonary metastatic foci in mice. In vitro kinetic studies show two distinctive drug release profiles. A first chemotherapy burst-release wave occurs during the first 5 h, which accounts for approximately 30% of the entrapped drug rapidly providing therapeutic concentrations. The second wave occurs after the arrival of the particles to the final destination in the lung. This release is sustained for long periods (>40 days), providing constant levels of chemotherapy in situ that trigger the inhibition of metastatic growth. Our findings suggest that the use of chemotherapy with loaded SLPs could substantially improve the effectiveness of the drug locally, reducing side effects while improving overall survival.
Fuente: Pharmaceutics . 2021 Jan 13;13(1):93.
Editorial: MDPI
Fecha de publicación: 01/01/2021
Nº de páginas: 13
Tipo de publicación: Artículo de Revista
DOI: doi: 10.3390/pharmaceutics13010093.
ISSN: 1999-4923
Proyecto español: DTS19/00033
Url de la publicación: https://doi.org/10.3390/pharmaceutics13010093
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LOURDES MARIA VALDIVIA FERNANDEZ
LORENA GARCIA HEVIA
BAÑOBRE LÓPEZ, MANUEL
GALLO, JUAN
RAFAEL VALIENTE BARROSO
MONICA LOPEZ FANARRAGA
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