Functionalized exosome-loaded ginsenoside Rg1 for the treatment of ischemic stroke / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 275-285, 2023.
Artículo
en Chino
| WPRIM
| ID: wpr-970374
ABSTRACT
The aim of this study was to investigate the therapeutic effects and potential mechanism of c(RGDyK) peptide modified mesenchymal stem cell exosomes loaded with ginsenoside Rg1 (G-Rg1) on ischemic stroke. Thread-tying method was used to establish SD rats transient middle cerebral occlusion model (tMCAO). The model rats were randomly divided into tMCAO group, Exo group, free G-Rg1 group, Exo-Rg1 group and cRGD-Exo-Rg1 group, and sham group was used as control. The infarct volume was measured by 2, 3, 5-triphenyltetrachloride (TTC) staining, the changes of neuron and endothelium were observed by immunofluorescence, and the expression of related proteins was detected by Western blotting. The results showed that cRGD-Exo-Rg1 up-regulated the expression of vascular endothelial growth factor (VEGF) and hypoxia-inducible factors (HIF-1α) by activating PI3K/AKT pathway, thus promoting angiogenesis and neurogenesis, effectively reducing the volume of cerebral infarction and improving neural function. In addition, the delivery of cRGD-Exo-Rg1 to ischemic brain tissue up-regulated the expression of occludin and claudin-5, and reduced the injury of blood-brain barrier. Taken together, cRGD-Exo-Rg1 was effective in the treatment of ischemic stroke by promoting angiogenesis and neurogenesis, which provided experimental evidence for the potential clinical benefits of other neuroprotective therapies.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Ratas Sprague-Dawley
/
Fosfatidilinositol 3-Quinasas
/
Ginsenósidos
/
Factor A de Crecimiento Endotelial Vascular
/
Exosomas
/
Accidente Cerebrovascular Isquémico
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Biotechnology
Año:
2023
Tipo del documento:
Artículo
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