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Sci Rep. 2016 May 24;6:26584. doi: 10.1038/srep26584.

Engineering a 3D microfluidic culture platform for tumor-treating field application.

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Biosym IRG, Singapore-MIT Alliance for Research and Technology, 1 Create Way, 138602 Singapore, Singapore.
Department of Bioengineering, University of California, Los Angeles, CA 90025, USA.
Department of Biomedical Engineering, National University of Singapore, Singapore 117583, Singapore.
School of Mechanical and Manufacturing Engineering, Australian Centre for NanoMedicine, University of New South Wales, Sydney, Australia.
Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, A*STAR, 8A Biomedical Grove, Immunos, Singapore 138648, Singapore.
Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA.


The limitations of current cancer therapies highlight the urgent need for a more effective therapeutic strategy. One promising approach uses an alternating electric field; however, the mechanisms involved in the disruption of the cancer cell cycle as well as the potential adverse effects on non-cancerous cells must be clarified. In this study, we present a novel microfluidic device with embedded electrodes that enables the application of an alternating electric field therapy to cancer cells in a 3D extracellular matrix. To demonstrate the potential of our system to aid in designing and testing new therapeutic approaches, cancer cells and cancer cell aggregates were cultured individually or co-cultured with endothelial cells. The metastatic potential of the cancer cells was reduced after electric field treatment. Moreover, the proliferation rate of the treated cancer cells was lower compared with that of the untreated cells, whereas the morphologies and proliferative capacities of the endothelial cells were not significantly affected. These results demonstrate that our novel system can be used to rapidly screen the effect of an alternating electric field on cancer and normal cells within an in vivo-like microenvironment with the potential to optimize treatment protocols and evaluate synergies between tumor-treating field treatment and chemotherapy.

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