The Role of the Glutathione System in Oxidative Modification of Proteins and Dysregulation of Apoptosis in Jurkat Tumor Cells
- Autores: Nosareva O.1, Stepovaya E.1, Ryazantseva N.2,3, Shakhristova E.1, Egorova M.1, Novitsky V.1
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Afiliações:
- Siberian State Medical University, Ministry of Health of the Russian Federation
- Siberian Federal University
- F. V. Voino-Yasentsky Krasnoyarsk State Medical University, Ministry of Health of the Russian Federation
- Edição: Volume 164, Nº 2 (2017)
- Páginas: 199-202
- Seção: Article
- URL: https://journals.rcsi.science/0007-4888/article/view/239484
- DOI: https://doi.org/10.1007/s10517-017-3957-x
- ID: 239484
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Resumo
We compared changes in the redox status and intensity of oxidative modification of proteins in intact Jurkat tumor cells and cells cultured with buthionine sulfoximine, an inhibitor of the key enzyme of glutathione synthesis γ-glutamylcysteine synthetase. The glutathione system components play a role in modulation of the content of protein-bound glutathione, protein carbonyl derivatives, bityrosine, and oxidized tryptophan, and in dysregulation of apoptosis in Jurkat tumor cells. Inhibition of de novo synthesis of glutathione in Jurkat tumor cells was followed by accumulation of hydroxyl radical, a reduction in the level of protein-bound glutathione and oxidized tryptophan, and a rise in the concentration of protein carbonyl derivatives. These changes were accompanied by activation of programmed cell death.
Sobre autores
O. Nosareva
Siberian State Medical University, Ministry of Health of the Russian Federation
Autor responsável pela correspondência
Email: olnosareva@yandex.ru
Rússia, Tomsk
E. Stepovaya
Siberian State Medical University, Ministry of Health of the Russian Federation
Email: olnosareva@yandex.ru
Rússia, Tomsk
N. Ryazantseva
Siberian Federal University; F. V. Voino-Yasentsky Krasnoyarsk State Medical University, Ministry of Health of the Russian Federation
Email: olnosareva@yandex.ru
Rússia, Krasnoyarsk; Krasnoyarsk
E. Shakhristova
Siberian State Medical University, Ministry of Health of the Russian Federation
Email: olnosareva@yandex.ru
Rússia, Tomsk
M. Egorova
Siberian State Medical University, Ministry of Health of the Russian Federation
Email: olnosareva@yandex.ru
Rússia, Tomsk
V. Novitsky
Siberian State Medical University, Ministry of Health of the Russian Federation
Email: olnosareva@yandex.ru
Rússia, Tomsk