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3 results on '"Tensho Suzuki"'

1. Decomposition and oxidation of methionine and tryptophan following irradiation with a nonequilibrium plasma jet and applications for killing cancer cells

Author

Giichiro Uchida, Yusuke Mino, Tensho Suzuki, Jun-ichiro Ikeda, Takashi Suzuki, Kosuke Takenaka, and Yuichi Setsuhara

Subjects
Medicine, Science
Abstract

Abstract We present evidence for the decomposition and oxidation of amino acids in aqueous solution following irradiation with a nonequilibrium plasma jet. Of 15 amino acids tested in cell culture medium, plasma irradiation induced a marked chemical change in methionine and tryptophan due to the effective production of reactive oxygen species by plasma-water interaction. We also report that plasma-treated methionine and tryptophan aqueous solutions can kill cancer cells, greatly decreasing the viability of human endometrial carcinoma (HEC-1) cancer cells due to the presence of decomposition or oxidation products generated from the amino acid. Plasma-treated methionine and tryptophan aqueous solutions also induced an anti-cancer effect on cancer-initiating cells.

Published
2019
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2. Decomposition and oxidation of methionine and tryptophan following irradiation with a nonequilibrium plasma jet and applications for killing cancer cells

Author

Kosuke Takenaka, Yuichi Setsuhara, Takashi Suzuki, Jun-ichiro Ikeda, Yusuke Mino, Giichiro Uchida, and Tensho Suzuki

Subjects
0301 basic medicine, chemistry.chemical_classification, Reactive oxygen species, Multidisciplinary, Aqueous solution, Methionine, Chemistry, Science, Tryptophan, Photochemistry, Decomposition, Article, Amino acid, 03 medical and health sciences, chemistry.chemical_compound, 030104 developmental biology, 0302 clinical medicine, Chemical engineering, Cell culture, Cancer cell, Medicine, Biomedical engineering, 030217 neurology & neurosurgery
Abstract

We present evidence for the decomposition and oxidation of amino acids in aqueous solution following irradiation with a nonequilibrium plasma jet. Of 15 amino acids tested in cell culture medium, plasma irradiation induced a marked chemical change in methionine and tryptophan due to the effective production of reactive oxygen species by plasma-water interaction. We also report that plasma-treated methionine and tryptophan aqueous solutions can kill cancer cells, greatly decreasing the viability of human endometrial carcinoma (HEC-1) cancer cells due to the presence of decomposition or oxidation products generated from the amino acid. Plasma-treated methionine and tryptophan aqueous solutions also induced an anti-cancer effect on cancer-initiating cells.

Published
2019

3. Publisher Correction: Decomposition and oxidation of methionine and tryptophan following irradiation with a nonequilibrium plasma jet and applications for killing cancer cells

Author

Jun-ichiro Ikeda, Kosuke Takenaka, Giichiro Uchida, Takashi Suzuki, Tensho Suzuki, Yusuke Mino, and Yuichi Setsuhara

Subjects
Multidisciplinary, Methionine, Plasma Gases, Cell Survival, lcsh:R, Plasma jet, Tryptophan, Non-equilibrium thermodynamics, lcsh:Medicine, Photochemistry, Decomposition, Publisher Correction, Endometrial Neoplasms, chemistry.chemical_compound, chemistry, Cell Line, Tumor, Cancer cell, Humans, Female, lcsh:Q, Irradiation, Reactive Oxygen Species, lcsh:Science
Abstract

We present evidence for the decomposition and oxidation of amino acids in aqueous solution following irradiation with a nonequilibrium plasma jet. Of 15 amino acids tested in cell culture medium, plasma irradiation induced a marked chemical change in methionine and tryptophan due to the effective production of reactive oxygen species by plasma-water interaction. We also report that plasma-treated methionine and tryptophan aqueous solutions can kill cancer cells, greatly decreasing the viability of human endometrial carcinoma (HEC-1) cancer cells due to the presence of decomposition or oxidation products generated from the amino acid. Plasma-treated methionine and tryptophan aqueous solutions also induced an anti-cancer effect on cancer-initiating cells.

Published
2019

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