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<p>We studied the processes of cell death and intracellular accumulation of free radicals, as well as activity of redox-sensitive transcription factors Nrf2 and NF-κB under the action of nitrosyl iron complex with N-ethylthiourea (ETU) on a model of human mesenchymal stem cells <i>in vitro</i>. ETU complex exhibits a pronounced prooxidant and cytotoxic effects accompanied by enhanced intracellular accumulation of nitrogen monoxide, induction of apoptotic cell death, activation of Nrf2/HO-1 pathways, and suppression of proinflammatory NF-κB-mediated reactions. A significant role of redox-dependent cellular processes in the mechanisms of the cytotoxic effect of nitrosyl iron complexes is shown.</p>

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Redox-Regulated Cell Response Mechanisms to Nitrosyl Iron Complex with N-Ethylthiourea in Human Mesenchymal Stem Cells In Vitro

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • A. A. Balakina,
  • V. I. Amozova,
  • T. S. Stupina,
  • N. A. Sanina

摘要

We studied the processes of cell death and intracellular accumulation of free radicals, as well as activity of redox-sensitive transcription factors Nrf2 and NF-κB under the action of nitrosyl iron complex with N-ethylthiourea (ETU) on a model of human mesenchymal stem cells in vitro. ETU complex exhibits a pronounced prooxidant and cytotoxic effects accompanied by enhanced intracellular accumulation of nitrogen monoxide, induction of apoptotic cell death, activation of Nrf2/HO-1 pathways, and suppression of proinflammatory NF-κB-mediated reactions. A significant role of redox-dependent cellular processes in the mechanisms of the cytotoxic effect of nitrosyl iron complexes is shown.