TY - JOUR
T1 - Design and Validation of Experimental Setup for Cell Spheroid Radiofrequency-Induced Heating
AU - Androulakis, Ioannis
AU - Ferrero, Riccardo
AU - van Oossanen, Rogier
AU - Manzin, Alessandra
AU - Denkova, Antonia G.
AU - Djanashvili, Kristina
AU - Nadar, Robin
AU - van Rhoon, Gerard C.
PY - 2023/5
Y1 - 2023/5
N2 - While hyperthermia has been shown to induce a variety of cytotoxic and sensitizing effects on cancer tissues, the thermal dose–effect relationship is still not well quantified, and it is still unclear how it can be optimally combined with other treatment modalities. Additionally, it is speculated that different methods of applying hyperthermia, such as water bath heating or electromagnetic energy, may have an effect on the resulting biological mechanisms involved in cell death or in sensitizing tumor cells to other oncological treatments. In order to further quantify and characterize hyperthermia treatments on a cellular level, in vitro experiments shifted towards the use of 3D cell spheroids. These are in fact considered a more representative model of the cell environment when compared to 2D cell cultures. In order to perform radiofrequency (RF)-induced heating in vitro, we have recently developed a dedicated electromagnetic field applicator. In this study, using this applicator, we designed and validated an experimental setup which can heat 3D cell spheroids in a conical polypropylene vial, thus providing a reliable instrument for investigating hyperthermia effects at the cellular scale.
AB - While hyperthermia has been shown to induce a variety of cytotoxic and sensitizing effects on cancer tissues, the thermal dose–effect relationship is still not well quantified, and it is still unclear how it can be optimally combined with other treatment modalities. Additionally, it is speculated that different methods of applying hyperthermia, such as water bath heating or electromagnetic energy, may have an effect on the resulting biological mechanisms involved in cell death or in sensitizing tumor cells to other oncological treatments. In order to further quantify and characterize hyperthermia treatments on a cellular level, in vitro experiments shifted towards the use of 3D cell spheroids. These are in fact considered a more representative model of the cell environment when compared to 2D cell cultures. In order to perform radiofrequency (RF)-induced heating in vitro, we have recently developed a dedicated electromagnetic field applicator. In this study, using this applicator, we designed and validated an experimental setup which can heat 3D cell spheroids in a conical polypropylene vial, thus providing a reliable instrument for investigating hyperthermia effects at the cellular scale.
KW - cells, cultured
KW - combined modality therapy
KW - drug screening assays, antitumor
KW - electromagnetic fields
KW - hyperthermia, induced
KW - tumor cells, cultured
UR - http://www.scopus.com/inward/record.url?scp=85159270622&partnerID=8YFLogxK
U2 - 10.3390/s23094514
DO - 10.3390/s23094514
M3 - Article
AN - SCOPUS:85159270622
VL - 23
JO - Sensors
JF - Sensors
SN - 1424-8220
IS - 9
M1 - 4514
ER -