Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Oxidative Stress Pathways Linked to Apoptosis Induction by Low-Temperature Plasma Jet Activated Media in Bladder Cancer Cells
T2 - An In Vitro and In Vivo Study
AU - Fukuhara, Hideo
AU - Szili, Endre
AU - Oh, Jun-Seok
AU - Kawada, Chiaki
AU - Yamamoto, Shinkuro
AU - Kurabayashi, Atsushi
AU - Furihata, Mutsuo
AU - Tsuda, Masayuki
AU - Furuta, Hiroshi
AU - Lindsay, Howard
AU - Short, Robert D
AU - Hatta, Akimitsu
AU - Inoue, Keiji
PY - 2022/4/27
Y1 - 2022/4/27
N2 - Current methods used to treat non-muscle invasive bladder cancer are inadequate due to a high recurrence rate after surgery and the occurrence of adverse events such as interstitial pneumonia following intravesical instillation therapy. Low-temperature plasma is a new form of physical therapythat provides a rich source of reactive oxygen species (ROS). Oxidative solutions, created by pretreatment of aqueous media with plasma before application to target cells, lead to the destruction of cancer cells through oxidative stress pathways. This study focuses on the effects of plasma-activated media (PAM) in bladder cancer cells. PAM treatment increases oxidative stress that leads to cell cycle arrest and concomitantly depolarises the mitochondrial membrane leading to increased mitochondrial ROS production. Cell cycle arrest and increased mitochondrial ROS production led to an increase in caspase 3/cytochrome c activity, which might explain the induction of apoptosis in bladder cancer cells in vitro and in a bladder cancer tumour in vivo. These observations highlight the potential of plasma activated solutions as a new adjuvant therapy in the clinical treatment of bladder cancer.
AB - Current methods used to treat non-muscle invasive bladder cancer are inadequate due to a high recurrence rate after surgery and the occurrence of adverse events such as interstitial pneumonia following intravesical instillation therapy. Low-temperature plasma is a new form of physical therapythat provides a rich source of reactive oxygen species (ROS). Oxidative solutions, created by pretreatment of aqueous media with plasma before application to target cells, lead to the destruction of cancer cells through oxidative stress pathways. This study focuses on the effects of plasma-activated media (PAM) in bladder cancer cells. PAM treatment increases oxidative stress that leads to cell cycle arrest and concomitantly depolarises the mitochondrial membrane leading to increased mitochondrial ROS production. Cell cycle arrest and increased mitochondrial ROS production led to an increase in caspase 3/cytochrome c activity, which might explain the induction of apoptosis in bladder cancer cells in vitro and in a bladder cancer tumour in vivo. These observations highlight the potential of plasma activated solutions as a new adjuvant therapy in the clinical treatment of bladder cancer.
KW - plasma activated media
KW - bladder cancer;
KW - reactive oxygen species
KW - oxidative stress
KW - caspase 3
KW - cytochrome c
KW - cell cycle;
KW - tumor
KW - plasma jet;
KW - apoptosis
U2 - 10.3390/plasma5020018
DO - 10.3390/plasma5020018
M3 - Journal article
VL - 5
SP - 233
EP - 246
JO - PLASMA
JF - PLASMA
SN - 2571-6182
IS - 2
ER -