Integrin adhesion receptors: structure, function and implications for biomedicine.

Over the past decade, multi-disciplinary approaches have led to the discovery and characterization of several classes of adhesion molecules. Under normal conditions, these molecules provide support for cells, regulate cell migration and contain information that cells use when sensing their environment. In disease, adhesive function is frequently compromised and results in tissue disorder, aberrant cell migration and dysregulation of signalling pathways. The integrins are a major family of adhesion receptors produced by most cell types and are a means by which the cell senses its immediate environment and responds to changes in extracellular matrix composition. Recent years have seen major advances in our understanding of integrin-ligand interactions, and have revealed a structurally dynamic family of receptors capable of translating information into and out of the cell.