Hydrogen peroxide is not generated intracellularly in human neural spheroids during ischemia-reperfusion.

Autor: Usatova VS; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia., Mishina NM; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia; Laboratory of Synthetic Neurotechnologies, Pirogov Russian National Research Medical University, 117997, Moscow, Russia., Berestovoy MA; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia., Ivanenko AV; Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997, Moscow, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia., Jappy D; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia; Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603022, Nizhny Novgorod, Russia., Krut' VG; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia; Laboratory of Synthetic Neurotechnologies, Pirogov Russian National Research Medical University, 117997, Moscow, Russia., Sokolov RA; Laboratory of Synthetic Neurotechnologies, Pirogov Russian National Research Medical University, 117997, Moscow, Russia; Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603022, Nizhny Novgorod, Russia., Moshchenko AA; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia., Rozov A; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia; Laboratory of Neurobiology, Kazan Federal University, 420008, Kazan, Russia., Shevchenko EK; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia., Belousov VV; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, 117997, Moscow, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia; Laboratory of Synthetic Neurotechnologies, Pirogov Russian National Research Medical University, 117997, Moscow, Russia; Life Improvement by Future Technologies (LIFT) Center, 121205, Moscow, Russia. Electronic address: belousov@fccps.ru.
Jazyk: angličtina
Zdroj: Free radical biology & medicine [Free Radic Biol Med] 2024 Feb 20; Vol. 212, pp. 234-240. Date of Electronic Publication: 2023 Dec 27.
DOI: 10.1016/j.freeradbiomed.2023.12.039
Abstrakt: Reactive oxygen species (ROS) are considered a primary source of damage during ischemic stroke. However, the precise timing of ROS production (during hypoxia or reperfusion) remains unclear. Cellular 3D spheroids are often proposed as an optimal alternative to both 2D cell cultures and animal models in modeling disease conditions. Here we report live imaging of hydrogen peroxide dynamics during the acute phase of hypoxia and reperfusion in human iPSC-derived neural spheroids, stably expressing fluorescent biosensor HyPer7. Contrary to previous reports, we did not observe a hydrogen peroxide production burst neither during hypoxia nor in course of reperfusion. Our data suggest either lack of oxidative stress during ischemia-reperfusion in spheroids or existence of different mechanisms of oxidative damage.
Competing Interests: Declaration of competing interest The authors declare no competing financial interest.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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