<sup>18</sup>F-Labeled Pyrido[3,4-<i>d</i>]pyrimidine as an Effective Probe for Imaging of L858R Mutant Epidermal Growth Factor Receptor
作者:Hiroyuki Kimura、Haruka Okuda、Masumi Ishiguro、Kenji Arimitsu、Akira Makino、Ryuichi Nishii、Anna Miyazaki、Yusuke Yagi、Hiroyuki Watanabe、Ikuo Kawasaki、Masahiro Ono、Hideo Saji
DOI:10.1021/acsmedchemlett.6b00520
日期:2017.4.13
4-(anilino)pyrido[3,4-d]pyrimidine derivative ([18F]APP-1) and evaluated its potential as a positron emission tomography (PET) imaging probe to discriminate the difference in mutations of tumors. EGFR inhibition assay, cell uptake, and biodistribution study showed that [18F]APP-1 binds specifically to the L858R mutant EGFR but not to the L858R/T790M mutant. Finally, on PET imaging study using [18F]APP-1 with
在非小细胞肺癌患者中,经常发现表皮生长因子受体(EGFR)的L858R突变,并且使用EGFR酪氨酸激酶抑制剂的分子靶向治疗对患者有效。但是,该治疗经常通过二次突变产生耐药性,其中大约50%是T790M突变。因此,预测EGFR是否会发生继发突变的能力非常重要。我们合成了一种新型的放射性氟化4-(苯胺基)吡啶并[3,4-d]嘧啶衍生物([18F] APP-1),并对其作为正电子发射断层扫描(PET)成像探针的潜力进行了评估,以区分肿瘤突变的差异。EGFR抑制测定,细胞吸收和生物分布研究表明[18F] APP-1与L858R突变体EGFR特异性结合,但与L858R / T790M突变体不结合。最后,