2,5-Dimethylcelecoxib prevents pressure-induced left ventricular remodeling through GSK-3 activation.
Hypertens Res
; 40(2): 130-139, 2017 Feb.
Article
in En
| MEDLINE
| ID: mdl-27628899
ABSTRACT
Glycogen synthase kinase-3 (GSK-3) is a crucial regulator of cardiac hypertrophy. We previously reported that 2,5-dimethylcelecoxib (DM-celecoxib), a celecoxib derivative unable to inhibit cyclooxygenase-2, prevented cardiac remodeling by activating GSK-3, resulting in lifespan prolongation in a mouse model of genetic dilated cardiomyopathy. In the present study, we investigated whether DM-celecoxib can also prevent pressure-induced cardiac remodeling and heart failure, elicited by transverse aortic constriction (TAC). Before testing the effects of DM-celecoxib, we compared the effects of TAC on the hearts of wild-type and GSK-3ß hetero-deficient (GSK-3ß+/-) mice to determine the role of GSK-3 in cardiac remodeling and heart failure. GSK-3ß+/- mouse hearts exhibited more severe hypertrophy, which was characterized by accelerated interstitial fibrosis, than wild-type mouse hearts after TAC, suggesting that reduced GSK-3ß activity aggravates pressure-induced left ventricular remodeling. We subsequently examined the effects of DM-celecoxib on TAC-induced cardiac remodeling. DM-celecoxib inhibited left ventricular systolic functional deterioration, and prevented left ventricular hypertrophy and fibrosis. It also activated GSK-3α and ß by inhibiting Akt, suppressing the activity of ß-catenin and nuclear factor of activated T-cells and thereby decreasing the expression of the Wnt/ß-catenin target gene products fibronectin and matrix metalloproteinase-2. These results suggest that DM-celecoxib is clinically useful for treating pressure-induced heart diseases.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pyrazoles
/
Sulfonamides
/
Cardiomyopathy, Dilated
/
Cardiomegaly
/
Ventricular Remodeling
/
Glycogen Synthase Kinase 3
/
Heart Ventricles
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
Hypertens Res
Journal subject:
ANGIOLOGIA
Year:
2017
Document type:
Article
Affiliation country:
Japan