Metabolic pathway of 2-deoxy-2-fluoro-D-glucose and 2-deoxy-2-fluoro-D-mannose in mice bearing sarcoma 180 studied by fluorin-19 nuclear magnetic resonance.
作者:MASAHARU KOJIMA、SATORU KURIBAYASHI、YOKO KANAZAWA、TERUSHI HARADAHIRA、YOSHIHIKO MAEHARA、HIDEYA ENDO
DOI:10.1248/cpb.36.1194
日期:——
The metabolic products of 2-deoxy-2-fluoro-D-glucose (FDG) and 2-deoxy-2-fluoro-D-mannose (FDM) in sarcoma 180 cells transplanted in mice were investigated by fluorin-19 nuclear magnetic resonance (19F-NMR) spectroscopy. It became apparent that the administered FDG was converted to FDM (and/or FDM-6-phosphate) in tumor cells, and also the administered FDM was converted to FDG (and/or FDG-6-phosphate). At 9h after administration of FDM, the ratio of FDG (and/or FDG-6-phosphate) and FDM (and/or FDM-6-phosphate) reached equilibrium. On the other hand, it took more than 48h in the case of FDG administration. The equilibrium amount of FDM (and/or FDM-6-phosphate) was approximately four times as much as that of FDG (and/or FDG-6-phosphate) in both cases.
通过氟-19核磁共振(19F-NMR)光谱研究了在小鼠体内移植的肉瘤180细胞中2-脱氧-2-氟-D-葡萄糖(FDG)和2-脱氧-2-氟-D-甘露糖(FDM)的代谢产物。结果表明,所施用的FDG在肿瘤细胞中转化为FDM(和/或FDM-6-磷酸),施用的FDM也转化为FDG(和/或FDG-6-磷酸)。施用FDM后9小时,FDG(和/或FDG-6-磷酸)与FDM(和/或FDM-6-磷酸)的比例达到平衡。另一方面,施用FDG后需要超过48小时。在这两种情况下,FDM(和/或FDM-6-磷酸)的平衡量大约是FDG(和/或FDG-6-磷酸)的四倍。