Redox-Responsive Mesoporous Silica Nanoparticles for Cancer Treatment: Recent Updates

Mesoporous silica nanoparticles have been widely applied as carriers for cancer treatment. Among the different types of stimuli-responsive drug delivery systems, those sensitive to redox stimuli have attracted much attention. Their relevance arises from the high concentration of reduc-tive species t...

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Detalles Bibliográficos
Autores: Gisbert Garzarán, Miguel, Vallet Regí, María Dulce Nombre
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/4414
Acceso en línea:https://hdl.handle.net/20.500.14352/4414
Access Level:acceso abierto
Palabra clave:mesoporous silica nanoparticles
redox-responsive
stimuli-responsive
drug delivery
cancer cell targeting
biodegradable nanoparticles
periodic mesoporous organosilica nanoparticles
Materiales
3312 Tecnología de Materiales
Descripción
Sumario:Mesoporous silica nanoparticles have been widely applied as carriers for cancer treatment. Among the different types of stimuli-responsive drug delivery systems, those sensitive to redox stimuli have attracted much attention. Their relevance arises from the high concentration of reduc-tive species that are found within the cells, compared to bloodstream, which leads to the drug re-lease taking place only inside cells. This review is intended to provide a comprehensive overview of the most recent trends in the design of redox-responsive mesoporous silica nanoparticles. First, a general description of the biological rationale of this stimulus is presented. Then, the different types of gatekeepers that are able to open the pore entrances only upon application of reductive conditions will be introduced. In this sense, we will distinguish among those targeted and those non-targeted toward cancer cells. Finally, a new family of bridged silica nanoparticles able to degrade their struc-ture upon application of this type of stimulus will be presented.