Multi-Smart and Scalable Bioligands-Free Nanomedical Platform for Intratumorally Targeted Tambjamine Delivery, a Difficult to Administrate Highly Cytotoxic Drug
Pérez-Hernández, Marta (Institut d'Investigació Biomèdica de Bellvitge)
Cuscó, Cristina (Nanobiotechnological Polymers Division)
Benítez-García, Cristina (Institut d'Investigació Biomèdica de Bellvitge)
Bonelli, Joaquin (Nanobiotechnological Polymers DivisionBusiness Park)
Nuevo-Fonoll, Marina (Universitat de Barcelona. Departament de Patologia i Terapèutica Experimental)
Soriano, Aroa (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Martínez-García, David (Institut d'Investigació Biomèdica de Bellvitge)
Arias-Betancur, Alain (Universidad de La Frontera)
García-Valverde, María (Universidad de Burgos)
Segura, Miguel F. (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Quesada, Roberto (Universidad de Burgos)
Rocas, Josep (Nanobiotechnological Polymers Division)
Soto-Cerrato, Vanessa (Institut d'Investigació Biomèdica de Bellvitge)
Pérez-Tomás, Ricardo (Universitat de Barcelona)
Universitat Autònoma de Barcelona

Fecha:	2021
Resumen:	Cancer is one of the leading causes of mortality worldwide due, in part, to limited success of some current therapeutic approaches. The clinical potential of many promising drugs is restricted by their systemic toxicity and lack of selectivity towards cancer cells, leading to insufficient drug concentration at the tumor site. To overcome these hurdles, we developed a novel drug delivery system based on polyurea/polyurethane nanocapsules (NCs) showing pH-synchronized amphoteric properties that facilitate their accumulation and selectivity into acidic tissues, such as tumor microenvironment. We have demonstrated that the anticancer drug used in this study, a hydrophobic anionophore named T21, increases its cytotoxic activity in acidic conditions when nanoencapsulated, which correlates with a more efficient cellular internalization. A biodistribution assay performed in mice has shown that the NCs are able to reach the tumor and the observed systemic toxicity of the free drug is significantly reduced in vivo when nanoencapsulated. Additionally, T21 antitumor activity is preserved, accompanied by tumor mass reduction compared to control mice. Altogether, this work shows these NCs as a potential drug delivery system able to reach the tumor microenvironment, reducing the undesired systemic toxic effects. Moreover, these nanosystems are prepared under scalable methodologies and straightforward process, and provide tumor selectivity through a smart mechanism independent of targeting ligands.
Ayudas:	Instituto de Salud Carlos III PI18/00441 Instituto de Salud Carlos III DTS20/00
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Polymer nanocapsules ; Tumor microenvironment ; Ph-tunable ; Lung cancer treatment ; Targeted drug delivery systems ; Amphoteric nanocapsules
Publicado en:	Biomedicines, Vol. 9 (may 2021) , ISSN 2227-9059

DOI: 10.3390/biomedicines9050508
PMID: 34064518

20 p, 6.0 MB

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