Effect of AngⅡ on Insulin Gene Expression in RIN-m Cells and Its Molecular Mechanism / 中国药师
China Pharmacist
;
(12): 2025-2029, 2015.
Artículo
en Chino
| WPRIM
| ID: wpr-484691
ABSTRACT
Objective:
To discuss the effect of AngⅡ on insulin gene expression IN RIN-m cells and its molecular mechanism.Methods:
RIN-m cells were cultured and divided into three groups, including the control group, 100 nmol·L-1 AngⅡ group and losartan pretreatment group. After 24-hour incubation, insulin gene expression in RIN-m cells was detected by RT-PCR, the mean flu-orescent intensity of 2', 7'-dichlorofluorescein ( DCF) was detected by flow cytometry, PDX-1 and MafA mRNA expression were detec-ted by RT-PCR and the protein expression was detected by Western-blot.Results:
Insulin expression in RIN-m cells, cellular ROS level, PDX-1 expression and MafA expression in 100 nmol · L-1 AngⅡ group were significantly different from those in the control group and losartan pretreatment group (P0. 05).Conclusion:
AngⅡ can down-regulate PDX-1 and MafA expression inβ-cells through oxidative stress pathway, and then inhibit insu-lin gene expression. Pretreatment with losartan can antagonize the effect of AngⅡ, and has protective effect onβ-cells in the aspect of insulin gene expression.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
China Pharmacist
Año:
2015
Tipo del documento:
Artículo
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