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Abstract Title:

Rapid Delivery of Gold Nanoparticles into Colon Cancer HT-29 Cells by Electroporation: In-vitro Study.

Abstract Source:

J Biomed Phys Eng. 2020 Apr ;10(2):161-166. Epub 2020 Apr 1. PMID: 32337183

Abstract Author(s):

Arab-Bafrani Z, Shahbazi-Gahrouei D, Abbasian M

Article Affiliation:

Arab-Bafrani Z

Abstract:

Background: Electroporation has become a routine technique for rapid drug delivery for the treatment of cancer. Because of its simplicity and wide range of application, it has been applied for the transfer of gold-nanoparticles and can facilitate entry into target cancer cells.

Objective: The aim of this study is finding optimal conditions in order to obtain high GNPs- uptake and cell viability by means of electroporation.

Materials and Methods: In this in vitro study, exponential electrical pulse with electric field intensity ranging from 0.2 -2 kV/cm, pulse length of 100µs and the pulse number of 2 was used. Electroporated cell viability was investigated using MTS assay and GNPs-cellular uptake was assayed using graphite furnace atomic absorption spectrometry (GFAAS). Finally, electroporation results were compared with passive method.

Results: The maximum uptake occurred at 1.2 to 2 kV/cm and passive method happened. The cell viability of 1.2 kV/cm and passive method was about 90%, while the cell viability in 2 kV/cm drastically decreased to 50%. The findings showed that using two pulses of 1.2 kV/cm and 100µs is a convenient way and surrogate of passive method for internalizing GNPs into cells.

Conclusion: It is concluded that the electroporation-GNPs method could create an opportunistic context for colon cancer therapy. This type of treatment is especially attractive for highly immunogenic types of cancers in patients who are otherwise not surgical candidates or whose tumors are unresectable.

Study Type : In Vitro Study

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