A radioconjugate consisting of a 7 amino acid peptide sequence, KCCFPAQ, that specifically targets human colon cancer and that is labeled, via the linker, GGGSK, with the fluorescent dye, fluorescein isothiocyanate (5-FITC), with potential imaging activity. Following spray application to the colon wall during colonoscopy in areas that look abnormal, the colon heptapeptide moiety of 5-FITC-labeled colon-heptapeptide specifically targets and binds to a cell surface target overexpressed on pre-cancerous or cancerous colon cells. Upon internalization, the FITC moiety allows for fluorescent imaging and the area of interest for biopsies can then be visualized. Check for active clinical trials using this agent. (NCI Thesaurus)
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