Pulsed Magnetic Fields Cause hes1 and hsa-Circ-0068530 Expression Changes in Gastric Cancer Cell Line and Human Normal Fibroblast Cell Line

Abstract

Background: In recent years, the relationship between cancer cells and electromagnetic radiation has received much attention. Objectives: The present study aimed to evaluate the effects of different intensities of electromagnetic fields on gastric cancer cell lines (AGS). Methods: After preparing AGS and Hu02 (normal) cell lines, they were exposed to magnetic flux densities of 0.25, 0.5, 1, and 2 millitesla (mT) for 18 h. The cell viability was studied by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The expression levels of hes1 and hsa-circ-0068530 RNAs were studied by the quantitative Real-time-PCR technique. Results: The inhibition of gastric cancer cell line growth was observed under the influence of electromagnetic fields at different intensities. However, they did not affect the viability of normal cells. A sharp increase in the expression of hes1 and hsa-circ-0068530 genes was observed in normal cells exposed to 2 mT electromagnetic fields. Conclusions: In general, it can be concluded that the effect of electromagnetic fields on gastric cancer cells depends on their intensity. Magnetic flux densities of 0.25 and 0.5 mT had anti-cancer effects and magnetic flux density of 2 mT showed carcinogenic effects.

Design and characterisation of a cell exposure system with high magnetic field homogeneity: RILZ coils

“…Magnetic field exposure systems are designed to expose cell samples or devices to controlled magnetic fields and are widely used in scientific and industrial applications (Kirschvink, 1992). These systems can typically contain different coil geometries that act as passive elements for magnetic field generation such as solenoids (Han et al, 2018;Sanie-Jahromi and Saadat, 2018;Costantini et al, 2019;Samiei et al, 2020;Mansoury et al, 2021;Salek et al, 2021;Maleki et al, 2022;Mansoury et al, 2022), circular (Yuan et al, 2018;López et al, 2019;García-minguillán et al, 2020;Xu et al, 2020;Yuan et al, 2020;Asadian et al, 2021) or square (Consales et al, 2018;Sun et al, 2018;Zuo et al, 2020;Elexpuru-Zabaleta et al, 2023;Lazzarini et al, 2023) coils arranged in different configurations, such as the Merrit configuration (Kirschvink, 1992) or the Helmholtz configuration (Kirschvink, 1992;López et al, 2019;García-minguillán et al, 2020;Xu et al, 2020;Asadian et al, 2021;Cios et al, 2021;Lim et al, 2021). The latter is one of the most popular configurations for exposing cell cultures or small animals to ELF-EMF (López et al, 2019;Garcíaminguillán et al, 2020;Xu et al, 2020;Asadian et al, 2021;Cios et al, 2021;Lim et al, 2021).…”