Issue 38, 2023

Functionalized manganese iron oxide nanoparticles: a dual potential magneto-chemotherapeutic cargo in a 3D breast cancer model

Abstract

Localized heat generation from manganese iron oxide nanoparticles (MIONPs) conjugated with chemotherapeutics under the exposure of an alternating magnetic field (magneto-chemotherapy) can revolutionize targeted breast cancer therapy. On the other hand, the lack of precise control of local temperature and adequate MIONP distribution in laboratory settings using the conventional two-dimensional (2D) cellular models has limited its further translation in tumor sites. Our current study explored advanced 3D in vitro tumor models as a promising alternative to replicate the complete range of tumor characteristics. Specifically, we have focused on investigating the effectiveness of MIONP-based magneto-chemotherapy (MCT) as an anticancer treatment in a 3D breast cancer model. To achieve this, chitosan-coated MIONPs (CS–MIONPs) are synthesized and functionalized with an anticancer drug (doxorubicin) and a tumor-targeting aptamer (AS1411). CS–MIONPs with a crystallite size of 16.88 nm and a specific absorption rate (SAR) of 181.48 W g−1 are reported. In vitro assessment of MCF-7 breast cancer cell lines in 2D and 3D cell cultures demonstrated anticancer activity. In the 2D and 3D cancer models, the MIONP-mediated MCT reduced cancer cell viability to about 71.48% and 92.2%, respectively. On the other hand, MIONP-mediated MCT under an AC magnetic field diminished spheroids’ viability to 83.76 ± 2%, being the most promising therapeutic modality against breast cancer.

Graphical abstract: Functionalized manganese iron oxide nanoparticles: a dual potential magneto-chemotherapeutic cargo in a 3D breast cancer model

Supplementary files

Article information

Article type
Paper
Submitted
13 6 2023
Accepted
05 9 2023
First published
06 9 2023
This article is Open Access
Creative Commons BY license

Nanoscale, 2023,15, 15686-15699

Functionalized manganese iron oxide nanoparticles: a dual potential magneto-chemotherapeutic cargo in a 3D breast cancer model

S. S. Phalake, S. B. Somvanshi, S. A. M. Tofail, N. D. Thorat and V. M. Khot, Nanoscale, 2023, 15, 15686 DOI: 10.1039/D3NR02816J

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