Publication:
Folic Acid-Modified Ibrutinib-Loaded Silk Fibroin Nanoparticles for Cancer Cell Therapy with Over-Expressed Folate Receptor

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Date
2023-04-07
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Authors
Fuster, M. G. ; Montalbán, M. G. ; Moulefera, I. ; Víllora Cano, Gloria ; Kaplan, D. L.
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Facultad de Química
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Publisher
MDPI
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DOI
https://doi.org/10.3390/pharmaceutics15041186
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info:eu-repo/semantics/article
Description
© 2023 by the authors____ This document is the published version of a published work that appeared in final form in Pharmaceutics____ This document is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0 ____ To access the final edited and published work see: https://doi.org/10.3390/pharmaceutics15041186
Abstract
The anticancer drug ibrutinib (IB), also known as PCI-32765, is a compound that irreversibly inhibits Bruton’s tyrosine kinase (BTK) and was initially developed as a treatment option for B-cell lineage neoplasms. Its action is not limited to B-cells, as it is expressed in all hematopoietic lineages and plays a crucial role in the tumor microenvironment. However, clinical trials with the drug have resulted in conflicting outcomes against solid tumors. In this study, folic acid-conjugated silk nanoparticles were used for the targeted delivery of IB to the cancer cell lines HeLa, BT-474, and SKBR3 by exploiting the overexpression of folate receptors on their surfaces. The results were compared with those of control healthy cells (EA.hy926). Cellular uptake studies confirmed total internalization of the nanoparticles functionalized by this procedure in the cancer cells after 24 h, compared to nanoparticles not functionalized with folic acid, suggesting that cellular uptake was mediated by folate receptors overexpressed in the cancer cells. The results indicate that the developed nanocarrier can be used for drug targeting applications by enhancing IB uptake in cancer cells with folate receptor overexpression.
Citation
Pharmaceutics. 2023 Apr 7 15(4):1186.
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