Hydrogen peroxide is not generated intracellularly in human neural spheroids during ischemia-reperfusion.
Free Radic Biol Med
; 212: 234-240, 2024 02 20.
Article
en En
| MEDLINE
| ID: mdl-38158053
ABSTRACT
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.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Daño por Reperfusión Miocárdica
/
Daño por Reperfusión
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Free Radic Biol Med
Asunto de la revista:
BIOQUIMICA
/
MEDICINA
Año:
2024
Tipo del documento:
Article
País de afiliación:
Rusia
Pais de publicación:
Estados Unidos