Abstract
The development of small-molecule inhibitors targeting G protein-coupled receptor kinase 2 (GRK2) and G protein-coupled receptor kinase 5 (GRK5) for the treatment of chronic degenerative diseases has attracted wide attention. GRK2 and GRK5 can regulate essential physiological processes by phosphorylating G protein-coupled receptor (GPCR). Alterations in the functional levels of GRK2 and GRK5 have been found in a variety of chronic degenerative diseases, such as cardiovascular diseases, neurodegenerative diseases, cancers, type 2 diabetes, and rheumatoid arthritis (RA). Abnormal GRK2 and GRK5 expression contribute to the development of chronic degenerative diseases through environmental molecular mechanisms, making them promising molecular targets for treating chronic degenerative diseases. To date, many novel GRK2 and GRK5 inhibitors have been reported for the treatment of chronic degenerative diseases. We focus on the recent progress of single and dual-target inhibitors of GRK2/GRK5. This review summarizes the structural optimization rationale, structure-activity relationships (SARs), and the latest application in the treatment of chronic degenerative diseases. We believe it will shed light on the future development of small molecule inhibitors of GRK2 and GRK5, as well as the clinical applications in chronic degenerative diseases.
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