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An asymmetric synthesis of a 3'-deoxy-3'-F-fluorothymidine (F-FLT) precursor has been developed wherein the deoxysugar moiety was synthesized using a novel Ga-mediated allylation of (R)-2,3-cyclohexylideneglyceraldehyde as the key step. The synthesis deviates significantly from the previous syntheses of the F-FLT precursors wherein the expensive starting material, thymidine was used.
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http://dx.doi.org/10.1016/j.ejmech.2017.10.047 | DOI Listing |
Nucl Med Commun
December 2014
Departments of aRadiology bNephrology, Ningbo First Hospital, Ningbo cDepartment of Nuclear Medicine, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Xiamen, China.
Objective: The aim of our study was to explore the value of 3'-deoxy-3'-[F]fluorothymidine (F-FLT) and F-FLT PET in monitoring the early biologic response of esophageal carcinoma after irradiation in vitro and in vivo.
Methods: After 2, 4, and 8 h of irradiation at different doses (0, 5, 10, and 15 Gy) of esophageal carcinoma cells in vitro, the uptake ratio of F-FLT, the relative cell survival rate, and ATP levels were measured. The tumor uptake ratio of F-FLT [tumor-to-nontumor (T/NT)] was measured through PET scans before and on the first, seventh, and 15th day after irradiation.
Clin Nucl Med
November 2012
Department for Nuclear Medicine, University Hospital of Cologne, Germany.
Purpose: The aim was to assess the value of tumor lesion glycolysis (TLG) and tumor lesion proliferation (TLP) determined by FDG and 3'-deoxy-3'-F-fluorothymidine (FLT) PET for response prediction and prognostic differentiation in patients with advanced non-small cell lung cancer (NSCLC) treated with erlotinib.
Patients And Methods: FDG-PET and FLT-PET were performed in 30 patients with untreated Stage IV NSCLC before start of therapy, 1 (early) and 6 (late) weeks after erlotinib treatment. Functional tumor volume parameters including TLG in FDG-PET and TLP in FLT-PET were measured in the sum of up to 5 lesions per scan.
Nucl Med Commun
June 2011
Department of Radiology, Faculty of Medicine, Kagawa University, Kagawa, Japan.
Purpose: We examined equilibrative nucleoside transporter-1 (ENT1) and thymidine kinase-1 (TK1) messenger ribonucleic acid (mRNA) expressions in cancer tissue samples to elucidate the mechanism of 3'-deoxy-3'-F-fluorothymidine (FLT) uptake by positron emission tomography (PET) scan in gastrointestinal cancer.
Methods: A total of 21 patients with newly diagnosed gastrointestinal cancer were examined with FLT PET. Tumor lesions were identified as areas of focally increased uptake, exceeding that of surrounding normal tissue.
Am J Med Sci
April 2008
Department of Internal Medicine, Division of Endocrinology and Metabolism, Hematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa University, 1750-1, Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Squalene is a type of oil obtained from shark liver. We describe a 76-year-old man diagnosed with chronic exogenous lipoid pneumonia due to squalene. A chest CT scan revealed pulmonary consolidation with ground-glass opacities in the right upper lobe.
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