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- W4362522602 abstract "G protein-coupled receptors (GPCRs) are key modulators of cell signaling. Multiple GPCRs are present in the heart where they regulate cardiac homeostasis including processes such as myocyte contraction, heart rate and coronary blood flow. GPCRs are pharmacological targets for several cardiovascular disorders including heart failure (HF) such as beta-adrenergic receptor (βAR) blockers and angiotensin II receptor (AT1R) antagonists. The activity of GPCRs are finely regulated by GPCR kinases (GRKs), which phosphorylate agonist-occupied receptors and start the process of desensitization. Among the seven members of the GRK family, GRK2 and GRK5 are predominantly expressed in the heart, where they exhibit both canonical and non-canonical functions. Both kinases are known to be increased in cardiac pathologies and contribute to pathogenesis through their roles in different cellular compartments. Lowering or inhibiting their actions mediate cardioprotective effects against pathological cardiac growth and failing heart. Therefore, given their importance in cardiac dysfunction, these kinases are drawing attention as promising targets for the treatment of HF, which needs improved therapies. Over the past three decades, broad knowledge on GRK inhibition in HF has been gained by studies using genetically engineered animal models or through gene therapy with peptide inhibitors or using small molecule inhibitors. In this mini review, we summarize the work focusing on GRK2 and GRK5 but also discuss a couple of the non-abundant cardiac subtypes and their multi-functional roles in the normal and diseased heart and the potential and therapeutic targets." @default.
- W4362522602 created "2023-04-06" @default.
- W4362522602 creator A5039653538 @default.
- W4362522602 date "2023-04-04" @default.
- W4362522602 modified "2023-10-17" @default.
- W4362522602 title "Novel roles for G protein-coupled receptor kinases in cardiac injury and repair" @default.
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