Eto K(1), Ishinada C(2), Suemoto T(2), Hyakutake K(2), Tanaka H(3), Hori M(3). Author information:
(1)Department of Biological Sciences, Graduate School of Science and Technology,
Kumamoto University, Japan. Electronic address: [Email]
(2)Department of Biological Sciences, Graduate School of Science and Technology,
Kumamoto University, Japan.
(3)Institute of Innovation for Future Society, Nagoya University, Japan.
Cells death is indispensable for embryonic development, tissue homeostasis, and the elimination of cancer, virally infected, or degenerated cells in multicellular organisms. It occurs not only via existing modes but also via unidentified modes, whose elucidation requires. Exposure to non-thermal atmospheric pressure plasma (NTAPP) has been demonstrated to induce cell death, probably because of its ability to generate reactive oxygen species (ROS). However, the mode of this cell death and its underlying mechanism remained elusive. Here we show cell death occurring in a novel and distinctive mode different from apoptosis and necrosis/necroptosis through a mechanism that ROS mediate the loss of the translation inhibitor Programmed cell death 4 (Pdcd4) when cells are cultured in solutions activated by NTAPP irradiation. Thus, our study performed with NTAPP-activated solutions may provide insight into the existence of the atypical cell death in cells and some features of its distinguishing mode and underlying mechanism.
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