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  • A radioconjugate and glutamine analog consisting of the fluorine F 18 labeled 2S, 4R stereoisomer of 4-fluoroglutamine with potential use as a metabolic tracer for tumor imaging. Upon intravenous administration, fluorine F 18 4-L-fluoroglutamine (2S,4R) is preferentially taken up by cancer cells, possibly driven by c-Myc upregulation. Upon positron emission tomography (PET), cancer cells can be imaged. Tumor cells use the amino acid glutamine for nutritional purposes necessary for energy production and growth; as tumor cells proliferate more rapidly than normal healthy cells, glutamine uptake is higher in certain cancer cells. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C103196\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C103196\' NCI Thesaurus)
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