Synthesis, radioiodination and in vivo screening of novel potent iodinated and fluorinated radiotracers as melanoma imaging and therapeutic probes
作者:Aurélie Maisonial、Emilie M.F. Billaud、Sophie Besse、Latifa Rbah-Vidal、Janine Papon、Laurent Audin、Martine Bayle、Marie-Josèphe Galmier、Sébastien Tarrit、Michèle Borel、Serge Askienazy、Jean-Claude Madelmont、Nicole Moins、Philippe Auzeloux、Elisabeth Miot-Noirault、Jean-Michel Chezal
DOI:10.1016/j.ejmech.2012.11.047
日期:2013.5
to develop new iodinated and fluorinated matched-pair radiotracers for Single-Photon Emission Computed Tomography (SPECT)/Positron Emission Tomography (PET) imaging and targeted radionuclide therapy of melanoma, we successfully synthesized and radiolabelled with iodine-125 seven new derivatives, starting from our previously described lead structure 3. The relevance of these radiotracers for gamma scintigraphic
为了开发用于单光子发射计算机断层扫描(SPECT)/正电子发射断层扫描(PET)成像和黑色素瘤靶向放射性核素治疗的新型碘化和氟化配对荧光示踪剂,我们成功地合成了碘125并合成了放射性标记的七个新衍生物,从我们前面介绍的引线结构开始3。评估了这些放射性示踪剂与啮齿动物黑色素瘤的γ射线显像成像的相关性。甚至在早期时间点,肿瘤放射性的摄取通常很高且特异性很高([ 125 I] 39 – 42时,在pi 3 h时ID / g为12.1–18.3%ID / g),并观察到与非目标器官的快速清除。同样,当使用相应的[ 131 I]标记的类似物时,可传递给肿瘤的有效剂量通常高于注射的100 cGy / MBq([ 131 I] 39 – 42则为98.9-150.5 cGy / MBq )。这些结果使化合物39 – 42成为(i)用氟18标记后的黑色素瘤的PET成像和(ii)用碘131标记后的弥漫性黑色素瘤的靶向放射性核素治疗的合适候选物。