miR-381-3p protects hippocampal neurons of depressive rats from injury via BDNF / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12): 699-704, 2018.
Artigo
em Chinês
| WPRIM
| ID: wpr-701182
ABSTRACT
AIM:
To investigate the effect of microRNA(miR)-381-3p on neuronal injury in the hippocampus of depressive rats and the possible regulatory mechanism.METHODS:
The rat model of depression was established by sub-cutaneous injection of corticosterone and the model rats received fluoxetine treatment.The body weight,open field test and biochemical indexes were measured for judging the therapeutic effect of fluoxetine.The expression of miR-381-3p,brain-derived neurotrophic factor(BNDF),Bcl-2 and Bax in the hippocampus was determined.The cultured neonatal rat hipp-ocampal neurons were pre-transfected with miR-381-3p inhibitor and then incubated with corticosterone.The cell viability, and the expression of miR-381-3p, BNDF, Bcl-2 and Bax were detected.The targeted regulatory role of miR-381-3p in BDNF was verified by luciferase reporter assay.RESULTS:
Compared with depression group,fluoxetine increased the body weight,the number of cross-field activities and the content of norepinephrine,inhibited the expression of miR-381-3p and promoted the expression of BNDF in the hippocampus.miR-381-3p silencing reversed the effect of corticosterone,resulting in the increase in the survival rate of hippocampal neurons, upregulation of BDNF and Bcl-2, and downregulation of Bax expression.miR-381-3p targeted the regulation of BNDF expression.CONCLUSION:
Silencing miR-381-3p protects rat hippocampal neurons from corticosterone injury,and its mechanism may be related to the upregulation of BNDF expression.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo prognóstico
Idioma:
Chinês
Revista:
Chinese Journal of Pathophysiology
Ano de publicação:
2018
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS