IRDye® 800CW RGD Optical Probe is a BrightSite™ near-infrared (NIR) fluorescently-labeled RGD imaging agent specifically designed to target the overexpression of integrins on tumors. Integrins are cell surface heterodimeric glycoproteins involved in cell-to-cell and cell-to-matrix interactions.
Integrins are cell surface heterodimeric glycoproteins involved in cell-to-cell and cell-to-matrix interactions. The recognition motif, RGD (Arg-Gly-Asp), is a tripeptide sequence used to bind integrin receptors including αvbeta;3. Interest in using a labeled RGD peptide ligand for the study and/or monitoring of diseases related to the αvbeta;3 receptor over-expression is increasing. Several groups have labeled RGD successfully with fluorescent dyes for in vitro and in vivo imaging.