Mammalian osteoclasts express three integrin receptors--alpha v beta 3 (vitronectin receptor), alpha 2 beta 1 and alpha v beta 1. The vitronectin receptor recognizes bone matrix proteins, including bone sialoproteins, in an RGD-dependent manner, whereas adhesion to collagen involves beta 1 integrins. Interference with integrin function, by anti-receptor… (More)
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