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A technetium Tc 99m radiopharmaceutical of a glutamate-rich peptide (GP) conjugated, via carbodiimide linker, to the heparin-like polysaccharide chitosan (CH) in a 1:1 ratio, with potential tumor targeting property. Upon administration, 99m Tc-glycopeptide targets and is taken up by glutamate-specific transporters on tumor cells. Upon internalization, the Tc99m moiety can be visualized upon scanning. GP may potentially be used as a drug carrier for antineoplastic drug delivery to tumor cells. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C91737\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C91737\' NCI Thesaurus)
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