DNA-Model-Based Design and Execution of Some Fused Benzodiazepine Hybrid Payloads for Antibody–Drug Conjugate Modality
作者:Prasanna Sivaprakasam、Ivar McDonald、Christiana Iwuagwu、Naidu S. Chowdari、Kevin M. Peese、David R. Langley、Heng Cheng、Michael R. Luzung、Michael A. Schmidt、Bin Zheng、Yichen Tan、Patricia Cho、Souvik Rakshit、Thirumalai Lakshminarasimhan、Sivakrishna Guturi、Kishorekumar Kanagavel、Umamaheswararao Kanusu、Ankita G. Niyogi、Somprabha Sidhar、Rajappa Vaidyanathan、Martin D. Eastgate、Srikanth Kotapati、Madhura Deshpande、Chin Pan、Pina M. Cardarelli、Chunshan Xie、Chetana Rao、Patrick Holder、Ganapathy Sarma、Gregory Vite、Sanjeev Gangwar
DOI:10.1021/acsmedchemlett.0c00578
日期:2021.3.11
a panel of various cancer cell lines. One of the payloads was appended with a lysosome-cleavable peptide linker and conjugated with an anti-mesothelin antibody via a site-specific conjugation method mediated by the enzyme bacterial transglutaminase (BTGase). Antibody–drug conjugate (ADC) 50 demonstrated good plasma stability and lysosomal cleavage. A single intravenous dose of ADC 50 (5 or 10 nmol/kg)
设计并执行了一个新系列,其中四氢异喹啉稠合苯二氮卓 (TBD) 环系统与 (1-甲基-1 H-吡咯-3-基) 苯 (“MPB”) 有效负载的替代物相结合,用于与单克隆抗体偶联用于抗癌治疗。DNA 模型有助于合理识别“MPB”结合成分的修饰和引导结构-活性关系的生成。当针对一组不同的癌细胞系进行测试时,这种混合系列的有效载荷表现出出色的体外活性。其中一个有效载荷附加了一个可溶酶体切割的肽接头,并通过由酶细菌转谷氨酰胺酶 (BTGase) 介导的位点特异性结合方法与抗间皮素抗体结合。抗体-药物偶联物 (ADC)50展示了良好的血浆稳定性和溶酶体裂解。在 N87 胃癌异种移植模型中,单次静脉注射 ADC 50 (5 或 10 nmol/kg)显示出强大的疗效。