Selective targeting of melanoma using N-(2-diethylaminoethyl) 4-[18F]fluoroethoxy benzamide (4-[18F]FEBZA): a novel PET imaging probe
作者:Pradeep K. Garg、Rachid Nazih、Yanjun Wu、Vladimir P. Grinevich、Sudha Garg
DOI:10.1186/s13550-017-0311-2
日期:2017.12
23%IA/g in HT-29 and C-32 tumors, respectively. On microPET images, the melanoma tumor was clearly visible by 10 min post-injection and the intensity in the tumor continued to increase with time. In contrast, the HT-29 tumor was not visible on the microPET scans. CONCLUSIONS A rapid and facile synthesis of 4-[18F]FEBZA is developed. This method offers a reliable production of 4-[18F]FEBZA in high radiochemical
背景技术这项研究的目的是开发一种正电子发射断层扫描(PET)成像探针,该探针易于合成并在体内选择性靶向黑色素瘤。在此,我们报告了N-(2-二乙基氨基乙基)4- [18F]氟乙氧基苯甲酰胺(4- [18F] FEBZA)的合成和临床前评价。开发了一步合成法以高放射化学产率和比活性制备4- [18F] FEBZA。使用B16F1黑色素瘤细胞系进行结合亲和力,体外结合和内在化研究。在C57BL / 6正常小鼠,带有B16F1黑色素瘤肿瘤异种移植物的C57BL / 6小鼠和带有HT-29人腺癌肿瘤和C-32釉质黑素瘤肿瘤异种移植物的nu / nu无胸腺小鼠中进行了生物分布研究。在携带B16F1和HT-29肿瘤异种移植物的小鼠中进行了MicroPET研究。结果制备的4- [18F] FEBZA的放射化学产率为53±14%,比活度为8.7±1.1 Ci /μmol。4- [18F] FEBZA的总合成