Synthesis and evaluation of 177Lu-labeled anti-EGFR Fab antibody for lung cancer

被引：0
|
作者：
Li, Yuan-Yuan [1 ,2 ]
Yu, Jia-Yan [1 ,2 ]
Wang, Tao [1 ,2 ]
Wang, Jing [2 ,3 ]
Zhao, Peng [2 ,3 ]
Yang, Xia [2 ,3 ]
Wei, Hong-Yuan [2 ,4 ]
Chen, Yue [1 ,4 ]
机构：
[1] Southwest Med Univ, Dept Nucl Med, Affiliated Hosp, Luzhou 646000, Peoples R China
[2] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China
[3] Lab Targeted Radiopharmaceut Creat, Mianyang 621900, Peoples R China
[4] Key Lab Nucl Med & Mol Imaging Sichuan Prov, Luzhou 646000, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2025年
基金：
中国国家自然科学基金;
关键词：
Fab fragments; Lutetium-177; Anti-EGFR antibody; Biodistribution; Lung cancer; SQUAMOUS-CELL CARCINOMA; TARGETED THERAPY; RADIOIMMUNOTHERAPY; BIODISTRIBUTION; NECK; HEAD;
D O I：
10.1007/s10967-025-10030-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Fab fragments obtained via enzymatic digestion of full-length antibodies or by gene recombination technology have smaller molecular weight and greater penetration ability. Those advantages make it uniquely suited to deliver radionuclides. In this study, we prepared a Fab fragment from the anti-EGFR antibody Cetuximab and labeled it with 177Lu. The binding activity in vitro and biodistribution in vivo of [177Lu]Lu-DOTA-Fab-Cetuximab were investigated. The [177Lu]Lu-labeled Fab fragment showed improved tumor penetration and faster blood clearance compared to the full-length antibody.
引用
收藏
页码：2139 / 2149
页数：11
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