作者
Sonal Singh, Santosh Suryavanshi, Andrea Diaz Diaz, Bradley McConnell
发表日期
2015/4
期刊
The FASEB Journal
卷号
29
页码范围
1025.3
出版商
The Federation of American Societies for Experimental Biology
简介
Gravin, an A‐Kinase Anchoring Protein (AKAP) is a scaffolding protein in the heart involved in the modulation of cardiac contractility. Specifically, gravin scaffolds PKA, PKC, β‐arrestin and various other proteins to β2‐adrenergic receptors (β2‐ARs) and functions to modulate contractility by mediating β2‐ARs desensitization. We previously found that disruption of gravin scaffolding, using gravin knockout (gravin‐t/t) mice, reduced cardiac hypertrophy induced by chronic β‐AR stimulation with isoproterenol (ISO; 60mg/kg/day for 14 days). However, for disruption of gravin scaffolding to be considered a therapeutic target, it will be important to show that inhibiting gravin scaffolding is a superior approach over conventional therapies. Hence, the goal of this study was to study the effects of carvedilol (CARV) in wild‐type (WT) versus gravin‐t/t animals; where CARV is the gold standard β‐blocker used to treat human heart …