miR-190 protects cardiomyocytes from apoptosis induced by H2O2 through targeting MAPK8 and regulating MAPK8/ERK signal pathway.
Int J Clin Exp Pathol
; 11(4): 2183-2192, 2018.
Article
en En
| MEDLINE
| ID: mdl-31938330
ABSTRACT
MicroRNAs (miRs) have been demonstrated to regulate physiological and pathological processes. Numerous miRsprotect against cardiomyocyte injury induced by oxidative stress. However, the function of miR-190 still remains unclear. Here, we determined the expression level of miR-190 in H9c2 cells under H2O2 treatment and found that miR-190 expression was significantly inhibited by H2O2. Further study indicated that miR-190 significantly reduced cell apoptosisand the LDH and MDA levels of H9c2 cells induced by H2O2. Luciferase activity assay, quantitative real-time-PCR, and Western blot demonstrated that miR-190 directly targets MAPK8. Rescue experiment confirmed this hypothesis. Further study has revealed that miR-190 protects H9c2 cells from oxidative stress injury through inhibiting the MAPK8/ERK signal pathway. In conclusion, these data suggest that miR-190 protects against oxidative stress injury of H9c2 cells induced by H2O2 through inhibiting MAPK8 expression and the MAPK8/ERK pathway. Our findings provide a potential therapeutic target to promote functional recovery after cardiac ischemia/reperfusion.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Int J Clin Exp Pathol
Asunto de la revista:
PATOLOGIA
Año:
2018
Tipo del documento:
Article