Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/83702
Título: | Development of pH-Sensitive magnetoliposomes containing shape anisotropic nanoparticles for potential application in combined cancer therapy |
Autor(es): | Pacheco, Ana Rita F. Cardoso, Beatriz D. Pires, Ana Pereira, André M. Araújo, João P. Carvalho, Violeta M. Rodrigues, Raquel O. Coutinho, Paulo J. G. Castelo-Grande, Teresa Augusto, Paulo A. Barbosa, Domingos Lima, Rui Alberto Madeira Macedo Teixeira, S. F. C. F. Rodrigues, Ana Rita Oliveira Castanheira, Elisabete M. S. |
Palavras-chave: | combined cancer therapy drug release pH-sensitive magnetoliposomes shape anisotropic nanoparticles superparamagnetism |
Data: | 15-Mar-2023 |
Editora: | Multidisciplinary Digital Publishing Institute (MDPI) |
Revista: | Nanomaterials |
Citação: | Pacheco, A.R.F.; Cardoso, B.D.; Pires, A.; Pereira, A.M.; Araújo, J.P.; Carvalho, V.M.; Rodrigues, R.O.; Coutinho, P.J.G.; Castelo-Grande, T.; Augusto, P.A.; Barbosa, D.; Lima, R.A.; Teixeira, S.F.C.F.; Rodrigues, A.R.O.; Castanheira, E.M.S. Development of pH-Sensitive Magnetoliposomes Containing Shape Anisotropic Nanoparticles for Potential Application in Combined Cancer Therapy. Nanomaterials 2023, 13, 1051. https://doi.org/10.3390/nano13061051 |
Resumo(s): | Late diagnosis and systemic toxicity associated with conventional treatments make oncological therapy significantly difficult. In this context, nanomedicine emerges as a new approach in the prevention, diagnosis and treatment of cancer. In this work, pH-sensitive solid magnetoliposomes (SMLs) were developed for controlled release of the chemotherapeutic drug doxorubicin (DOX). Shape anisotropic magnetic nanoparticles of magnesium ferrite with partial substitution by calcium (Mg0.75Ca0.25Fe2O4) were synthesized, with and without calcination, and their structural, morphological and magnetic properties were investigated. Their superparamagnetic properties were evaluated and heating capabilities proven, either by exposure to an alternating magnetic field (AMF) (magnetic hyperthermia) or by irradiation with near-infrared (NIR) light (photothermia). The Mg0.75Ca0.25Fe2O4 calcined nanoparticles were selected to integrate the SMLs, surrounded by a lipid bilayer of DOPE:Ch:CHEMS (45:45:10). DOX was encapsulated in the nanosystems with an efficiency above 98%. DOX release assays showed a much more efficient release of the drug at pH = 5 compared to the release kinetics at physiological pH. By subjecting tumor cells to DOX-loaded SMLs, cell viability was significantly reduced, confirming that they can release the encapsulated drug. These results point to the development of efficient pH-sensitive nanocarriers, suitable for a synergistic action in cancer therapy with magnetic targeting, stimulus-controlled drug delivery and dual hyperthermia (magnetic and plasmonic) therapy. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/83702 |
DOI: | 10.3390/nano13061051 |
e-ISSN: | 2079-4991 |
Versão da editora: | https://www.mdpi.com/2079-4991/13/6/1051 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CAlg - Artigos em revistas internacionais / Papers in international journals PHYSICS OF QUANTUM MATERIALS AND BIONANOSTRUCTURES (2018 - ...) MEtRICs - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
nanomaterials-13-01051.pdf | 5,34 MB | Adobe PDF | Ver/Abrir | |
Supplementary Material.pdf | Supplementary Material | 402,25 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons