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The Use of Neural Stem Cells-Derived Exosomes to Prevent Late Radiation-Induced Cognitive Impairments in Mice

Overview
Publisher Springer
Specialty General Medicine
Date 2023 Mar 9
PMID 36894818
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Abstract

We studied the effect of intranasal administration of neural stem cell (NSC)-derived exosomes on behavior and cognitive functions of mice in the late period after head irradiation in a dose of 8 Gy. The used exosomes had specific markers (CD9/CD63, 99.5%; TSG101, 98.4%) and mean size 105.7±8.8 nm according to dynamic light scattering data and 119.0±12.4 nm according to nanoparticle tracking analysis (NTA). Exosome suspension (2×10 particles/ml according to NTA measurements) was administered intranasally for 4 weeks starting from 48 h after irradiation in a volume of 5 μl/nostril (2×10 exosomes/mouse). It was shown that intranasal administration of mouse NSC-derived exosomes prevented delayed radiation-induced behavioral changes and recognition memory impairments in mice after head irradiation.

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