Evaluation of IC Levels Immediately After Treatment with Anticancer Reagents Using a Real-time Cell Monitoring Device

Overview

Journal Exp Ther Med

Specialty Pathology

Date 2019 Sep 27

PMID 31555392

Citations 10

Authors

Mai Hazekawa

Takuya Nishinakagawa

Tomoyo Kawakubo-Yasukochi

Manabu Nakashima

Affiliations

Soon will be listed here.

Abstract

A real-time cell-monitoring analysis (RTCA) system was previously developed based on the change in impedance when cells attach and spread in a culture dish coated with a gold microelectrode array. However, the potential applications of this system have not yet been fully demonstrated. The purpose of this study was to test the utility of the RTCA system to determine the cytotoxicity of four anticancer agents in carcinoma cells. The results were compared with those of the conventional WST-8 assay at the endpoint to determine the potential of the RTCA system as a new real-time assay method to evaluate cytotoxicity. iCELLigence was used as the RTCA system in this study. Suspensions of oral squamous cell carcinoma (OSCC) cell lines were seeded (2×10 cells/well) onto the E-plate (the culture plate of the iCELLigence system). After 24 h of culture, anticancer agents were added to each well, and changes in electrical impedance (cell index, CI) were recorded for another 72 h of culture. Cell proliferation was detected in real-time by the RTCA device in an automated, high throughput manner. Then, the IC profiles of the four anticancer agents were calculated based on the real-time cell index values. The results indicated that the RTCA system was useful in evaluating cytotoxic reactions immediately after the addition of the anticancer agents as it was able to record the data in real-time. Furthermore, the IC levels measured by the real-time assay were lower than those measured by the endpoint assay. Thus, RTCA systems can be used to evaluate chemotherapeutic agents in cancer cells as well as their side effects in normal cells.

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