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Open AccessArticle

Multifunctional Albumin-Stabilized Gold Nanoclusters for the Reduction of Cancer Stem Cells

Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia) & Nanobiotecnología (IMDEA-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), 28049 Madrid, Spain
Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain
Authors to whom correspondence should be addressed.
Cancers 2019, 11(7), 969;
Received: 24 June 2019 / Revised: 5 July 2019 / Accepted: 9 July 2019 / Published: 10 July 2019
(This article belongs to the Special Issue Cancer Nanomedicine)
Controlled delivery of multiple chemotherapeutics can improve the effectiveness of treatments and reduce side effects and relapses. Here in, we used albumin-stabilized gold nanoclusters modified with doxorubicin and SN38 (AuNCs-DS) as combined therapy for cancer. The chemotherapeutics are conjugated to the nanostructures using linkers that release them when exposed to different internal stimuli (Glutathione and pH). This system has shown potent antitumor activity against breast and pancreatic cancer cells. Our studies indicate that the antineoplastic activity observed may be related to the reinforced DNA damage generated by the combination of the drugs. Moreover, this system presented antineoplastic activity against mammospheres, a culturing model for cancer stem cells, leading to an efficient reduction of the number of oncospheres and their size. In summary, the nanostructures reported here are promising carriers for combination therapy against cancer and particularly to cancer stem cells. View Full-Text
Keywords: nanomedicine; drug delivery; stimuli-responsive; DOX; SN38; CSCs nanomedicine; drug delivery; stimuli-responsive; DOX; SN38; CSCs
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Latorre, A.; Latorre, A.; Castellanos, M.; Rodriguez Diaz, C.; Lazaro-Carrillo, A.; Aguado, T.; Lecea, M.; Romero-Pérez, S.; Calero, M.; Sanchez-Puelles, J.M.; Villanueva, Á.; Somoza, Á. Multifunctional Albumin-Stabilized Gold Nanoclusters for the Reduction of Cancer Stem Cells. Cancers 2019, 11, 969.

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