کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1359464 | 981403 | 2010 | 10 صفحه PDF | دانلود رایگان |
The current work evaluates 1-α-d-(2-deoxy-2-fluororibofuranosyl)-2-nitroimidazole (FRAZ), a novel azomycin nucleoside that is a potential radiosensitizer of tumor hypoxia. FRAZ is a ribose analogue of 1-α-d-(2-deoxy-2-fluoroarabinofuranosyl)-2-nitroimidazole ([18F]-FAZA), a clinically used hypoxia marker. Preliminary assessment of the cytotoxicity and hypoxia-specific in vitro binding in HCT-110 colorectal cancer cells indicate that the radiosensitization properties of FRAZ are similar to that of FAZA, with a sensitizer enhancement ratio (SER) of ∼1.8. An automated radiosynthesis of [18F]-FRAZ using a commercial automated synthesis unit (ASU) was established (synthesis time ∼32 min; radiochemical yield (decay uncorrecetd) ∼22%) to facilitate its application in PET-based diagnosis of hypoxic tumors.
The synthesis and F-18 radiolabeling of FRAZ, an azomycin nucleoside-based novel compound, are shown. FRAZ has radiosensitization properties similar to FAZA, a clinical PET radiodiagnostic for hypoxic tumors.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry - Volume 18, Issue 6, 15 March 2010, Pages 2255–2264