Cancer Treatments Using Low-Temperature Plasma

Area of Science:

• Plasma science
• Bio-medical applications
• Cancer research

Background:

• Low-temperature plasma (LTP) is a partially ionized gas with diverse components.
• Biomedical applications of LTP are a growing area of research.
• Cancer treatment using plasma is a significant challenge in this field.

Purpose of the Study:

• Investigate the anti-tumor effects of LTP.
• Understand the role of reactive oxygen and nitrogen species (RONS) in plasma-induced anti-cancer activity.
• Explore how LTP affects cellular responses and signaling pathways.

Main Methods:

• In vitro and in vivo experiments were conducted.
• Analysis of extracellular and intracellular RONS in plasma-activated solutions.
• Investigation of amino acid modifications induced by LTP.
• Assessment of activated signaling pathways, including p53 and oxidative stress pathways.

Main Results:

• Extracellular RONS in plasma-activated solutions are crucial for anti-tumor effects.
• LTP can modify amino acids, influencing cellular responses.
• Intracellular RONS also play a key role in anti-cancer activity.
• LTP activates various signaling pathways involved in cell death, survival, and stress responses.

Conclusions:

• LTP exhibits significant anti-tumor potential.
• RONS, both extra- and intracellular, are key mediators of LTP's anti-cancer effects.
• LTP influences cellular behavior through modifications and signaling pathway activation, offering a novel approach to cancer therapy.