Design, Synthesis, and Structure–Activity Relationships of Novel Tetrahydroisoquinolino Benzodiazepine Dimer Antitumor Agents and Their Application in Antibody–Drug Conjugates
作者:Naidu S. Chowdari、Yong Zhang、Ivar McDonald、Walter Johnson、David R. Langley、Prasanna Sivaprakasam、Robert Mate、Tram Huynh、Srikanth Kotapati、Madhura Deshpande、Chin Pan、Daniel Menezes、Yichong Wang、Chetana Rao、Ganapathy Sarma、Bethanne M. Warrack、Vangipuram S. Rangan、Sung Mei-Chen、Pina Cardarelli、Shrikant Deshpande、David Passmore、Richard Rampulla、Arvind Mathur、Robert Borzilleri、Arvind Rajpal、Gregory Vite、Sanjeev Gangwar
DOI:10.1021/acs.jmedchem.0c01385
日期:2020.11.25
series of tetrahydroisoquinoline-based benzodiazepine dimers were synthesized and tested for in vitro cytotoxicity against a panel of cancer cell lines. Structure–activity relationship investigation of various spacers guided by molecular modeling studies helped to identify compounds with picomolar activity. Payload 17 was conjugated to anti-mesothelin and anti-fucosylated monosialotetrahexosylganglioside
合成了一系列基于四氢异喹啉的苯并二氮杂二聚体,并测试了其对一组癌细胞系的体外细胞毒性。通过分子建模研究指导的各种间隔基的结构-活性关系研究有助于鉴定具有皮摩尔活性的化合物。有效负载17通过溶酶体可裂解的缬氨酸-瓜氨酸二肽接头,通过异源赖氨酸偶联和细菌转谷氨酰胺酶介导的位点特异性偶联,将其与抗间皮素和抗岩藻糖基化的单唾液酸四己糖基神经节苷脂(FucGM1)抗体偶联。在体外,这些抗体药物偶联物(ADC)对人类癌细胞系表现出显着的细胞毒性和靶标介导的选择性。在小鼠的胃癌和肺癌异种移植模型中,进一步评估了这些ADC的药代动力学和功效。在单剂量ADC- 46(0.02μmol / kg)之后,在这些模型中观察到一致的药代动力学特征,高靶标特异性和强大的抗肿瘤活性。