The anti-photoaging effects of human umbilical cord mesenchymal stem cells derived extracellular vesicles on dermal fibroblasts / 中华整形外科杂志
Chinese Journal of Plastic Surgery
;
(6): 341-346, 2019.
Artigo
em Chinês
| WPRIM
| ID: wpr-804979
ABSTRACT
Objective@#To investigate the anti-photoaging effects of human umbilical cord mesenchymal stem cells derived extracellular vesicles (hucMSC-EVs) on dermal fibroblasts.@*Methods@#Human fibroblasts were pretreated with hucMSC of different concentrations for 24 hours before ultraviolet B (UVB) irradiation. Immediately post irradiation, the intracellular reactive oxygen species (ROS) were analyzed using reactive oxygen detection kit. After 72 hours irradiation, cell proliferation was assessed using CCK-8 assay, and the percentage of senescent cells was evaluated by β-galactosidase (SA-β-gal) staining.@*Results@#The UVB irradiation increased intracellular ROS level, decreased the cell proliferation from 100% to(77.33±2.89)%, and increased the percentage of SA-β-gal positive senescent cells from (6.70±0.46)% to (17.67±1.53)%. The hucMSC-EVs pretreatment decreased the intracellular ROS level, stimulated cell proliferation from (77.33±2.89)% to (90.67±2.52)% and( 96.00±5.57)% , and decreased the positive rate of SA-β-gal positive cells from (17.67±1.53)% to (8.38±0.56)% and (7.07±1.10)%.@*Conclusions@#The hucMSC-EVs preconditioning may protect dermal fibroblasts from UVB induced photoaging, by reducing intracellular ROS.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Plastic Surgery
Ano de publicação:
2019
Tipo de documento:
Artigo
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