Preliminary research on the effects and mechanisms of umbilical cordderived mesenchymal stem cells in streptozotocininduced diabetic retinopathy.
Int J Mol Med
; 46(2): 849-858, 2020 Aug.
Article
em En
| MEDLINE
| ID: mdl-32626946
ABSTRACT
Diabetic retinopathy (DR) is one of the most prevalent microvascular complications of diabetes, and a common cause of blindness in workingage individuals. Mesenchymal stem cell (MSC) transplantation has been considered a promising intervention therapy for DR, wherein the differentiation of MSCs into nerve cells plays an essential role. However, research into the role of MSCs in DR treatment remains incomplete, and the mechanisms of retinal repair at the molecular level have yet to be clarified. In the present study, alltrans retinoic acid (ATRA) was used to promote the proliferation of rat umbilical cord (UC)derived MSCs and their differentiation into nerve cells. Furthermore, the effects and mechanisms of UCMSCs with or without ATRA treatment were investigated in rats subjected to streptozocin (STZ)induced DR. The results demonstrated that the transplantation of UCMSCs treated with or without ATRA attenuated DR in rats, and alleviated retinal tissue damage and apoptosis. In addition, the transplantation of UCMSCs treated with or without ATRA attenuated angiogenesis and inflammation in the retina by regulating the levels of relevant cytokines. UCMSCs treated with ATRA exerted a more prominent therapeutic effect than the untreated UCMSCs. On the whole, these findings indicate that UCMSCs alleviate STZinduced DR in rats by regulating angiogenesis and the inflammatory response at the molecular level. Thus, the findings of the present study may provide a theoretical basis for the application of MSCs in the treatment of DR.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Estreptozocina
/
Retinopatia Diabética
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article