Synthesis and evaluation of radioiodinated 1-{2-[5-(2-methoxyethoxy)-1H-benzo[d]imidazol-1-yl]quinolin-8-yl}piperidin-4-amine derivatives for platelet-derived growth factor receptor β (PDGFRβ) imaging
作者:Nurmaya Effendi、Kazuma Ogawa、Kenji Mishiro、Takeshi Takarada、Daisuke Yamada、Yoji Kitamura、Kazuhiro Shiba、Takehiko Maeda、Akira Odani
DOI:10.1016/j.bmc.2017.08.025
日期:2017.10
PDGFRβ inhibitors can be a convenient tool for the imaging of tumors overexpressing PDGFRβ. In this study, [125I]-1-5-iodo-2-[5-(2-methoxyethoxy)-1H-benzo[d]imidazol-1-yl]quinoline-8-yl}piperidin-4-amine ([125I]IIQP) and [125I]-N-3-iodobenzoyl-1-2-[5-(2-methoxyethoxy)-1H-benzo[d]imidazol-1-yl]quinolin-8-yl}-piperidin-4-amine ([125I]IB-IQP) were designed and synthesized, and their potential as PDGFRβ
血小板衍生的生长因子受体β(PDGFRβ)是跨膜酪氨酸激酶受体,在各种恶性肿瘤中均被上调。放射性标记的PDGFRβ抑制剂可以成为对过表达PDGFRβ的肿瘤进行成像的便捷工具。在这项研究中,[ 125 I] -1- 5-碘-2- [5-(2-甲氧基乙氧基)-1 H-苯并[ d ]咪唑-1-基]喹啉-8-基}哌啶-4-胺([ 125 I] IIQP)和[ 125 I] -N -3-碘苯甲酰基-1- 2- [5-(2-甲氧基乙氧基)-1 H-苯并[ d ]咪唑-1-基]喹啉-8 -yl} -piperidin-4-amine([ 125设计并合成了I] IB-IQP),并评估了其作为PDGFRβ显像剂的潜力。在细胞摄取实验中,[ 125 I] IIQP和[ 125 I] IB-IQP显示PDGFRβ阳性细胞的摄取高于PDGFRβ阴性细胞,并且与PDGFRβ配体共培养可抑制PDGFRβ阳性细胞