PSMA. Receptor-mediated cell internalization upon the PSMA binding of [18F]F-TZ(PSMA)-LEGU-TLR7 showed a time-dependent increase, indicative of targeted intracellular delivery of the theranostic prodrug conjugate. The designed controlled release of gardiquimod, a TLR7 agonist, was realized by a legumain cleavable linker. We further performed an in vivo PET/CT imaging study that showed significantly higher
我们之前报道了一种小分子药物偶联物 (SMDC) 平台的设计和合成,该平台在体内药代动力学、实体瘤穿透、确定的
化学结构和模块化合成的适应性方面表现出优于
抗体药物偶联物 (ADC) 的多项优势. 构建在衍生自
1,3,5-三嗪 (TZ) 的三模式 SMDC 平台上,该平台由前列腺特异性膜抗原 (PSMA) 的靶向部分 (Lys-Urea-Glu) 组成,在这里我们报告了一类新的
化学相同的治疗诊断小分子前药偶联物 (T-SM
PDC),[ 18/19 F]F-TZ(PSMA)-L
EGU-TLR7,用于 PSMA 靶向递送和控释 toll 样受体 7 (TLR7) 激动剂引发癌症免疫治疗的从头免疫反应。的体外竞争性结合试验[19 F]F-TZ(PSMA)-L
EGU-TLR7 表明 Lys-Urea-Glu 的
化学修饰不会损害其与 PSMA 的结合亲和力。[ 18 F]F-TZ(PSMA)-L
EGU