Multi-time-frame cell physiology assessment of cold atmospheric plasma emission bioeffects

Alexander P. Horkowitz; Denis Zolotukhin; Michael Keidar

doi:10.1117/12.2686925

3 April 2024 Multi-time-frame cell physiology assessment of cold atmospheric plasma emission bioeffects

Alexander P. Horkowitz, Denis Zolotukhin, Michael Keidar

Proceedings Volume 12826, Mechanisms of Photobiomodulation Therapy XVIII; 1282608 (2024) https://doi.org/10.1117/12.2686925
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

The physical emissions from cold atmospheric plasma (CAP) devices have been shown to be efficacious in killing U87-MG glioblastoma multiform cells in vitro. While reduction of cell viability has been previously demonstrated, the biological mechanisms involved remain a mystery. To address this, the present study investigates the bioeffects of CAP discharge tube (DT) treatment on U87-MG glioblastoma multiform cells in vitro, considering separation distance, treatment duration, multiple treatments, and incubation time post treatment. Assessment of apoptotic progression, membrane permeability, intracellular reactive oxygen species (ROS) concentration, and mitochondrial membrane potential by flow cytometry demonstrates that DT treatment causes oxidative stress and apoptotic progression in U87-MG cells. Cumulative treatment with multiple short duration treatments is also shown to increase efficacy of DT treatment compared to single long duration treatment. Cell viability and intracellular ROS concentration observed 2, 6, 24, 48, and 72 hours post DT treatment demonstrate pronounced effects of DT treatment lasting multiple days, improving upon our current understanding of this novel treatment modality.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Alexander P. Horkowitz, Denis Zolotukhin, and Michael Keidar "Multi-time-frame cell physiology assessment of cold atmospheric plasma emission bioeffects", Proc. SPIE 12826, Mechanisms of Photobiomodulation Therapy XVIII, 1282608 (3 April 2024); https://doi.org/10.1117/12.2686925

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