αvβ3 Integrin antagonists as inhibitors of bone resorption

Abstract

The _vβ₃ integrin is a non-covalent, heterodimeric, cell-surface protein that is expressed with varying density on numerous cell types, including osteoclasts, vascular smooth muscle cells, endothelial cells and a variety of tumour cells. Functionally, _vβ₃ mediates a diverse range of biological events including the adhesion of osteoclasts to bone matrix, smooth muscle cell migration and angiogenesis. Specifically, there has been significant attention focused on the preparation of inhibitors of _vβ₃ for use as inhibitors of bone resorption, in recognition of the medical need for improved prevention and treatment of osteoporosis. Herein, we summarise the pertinent chemistry and biological advances in the medicinal design and biological evaluation of peptide and small molecule _vβ₃ antagonists as inhibitors of bone resorption.

• vβ3
• antagonist
• bone resorption
• inhibitor
• integrin
• osteoclast
• osteoporosis
• RGD