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。