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Updated: Jul 18, 2025

Synthesis and Bioconjugation of Thiol-Reactive Reagents for the Creation of Site-Selectively Modified Immunoconjugates

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Published on: March 6, 2019

使用修改双切N-甘氨酸的特定抗体结合:方法开发和潜在的可调节效应器功能.

Yen-Pang Hsu¹, Omar Nourzaie², Ariel E Tocher³

¹MRL, Merck & Co., Inc., 320 Bent St., Cambridge, Massachusetts 02141, United States.

Bioconjugate chemistry

|August 24, 2023

概括

一种新的甘氨酸桥接结合策略,可以在没有复杂的抗体修饰的情况下创建特定位点的抗体-药物结合物 (ADC). 这种方法有效地准HER2表达的癌细胞,并允许糖基工程优化ADC特性.

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Published on: September 14, 2018

科学领域:

生物结合化学生物结合化学
免疫学免疫学免疫学
在瘤学瘤学.

背景情况:

抗体-药物合物 (ADC) 由于其向特异性和强度,是重要的治疗药物.
现有的ADC结合策略往往需要复杂的抗体工程.
需要先进的结合方法,提供更好的生物相容性和受控的生物物理特性.

研究的目的:

开发一个新的特定站点对ADCs的结合策略,使用一个分割的糖桥.
证明这种策略在制造抗HER2ADC时的有效性.
探索糖基工程调节ADC属性的潜力.

主要方法:

采用了一种分割甘氨酸桥接的结合方法,绕过了对寡糖化合物合成或基因抗体工程的需求.
使用这种策略,人类和小鼠的抗HER2 IgG与单甲基奥里斯塔丁E结合.
评估了糖干桥的稳定性和由此产生的ADCs对HER2表达癌细胞的疗效.

主要成果:

甘氨酸桥接结合策略使得特定部位的抗体修饰成为可能.
开发的ADCs表现出极好的稳定性,并有效地消除了表达HER2的癌细胞.
该策略被证明与潜在的甘氨酸工程的甘氨酸结构改造兼容.

结论:

切割甘氨酸桥接联策略为创建特定站点的ADC提供了一种多功能和高效的方法.
这种方法有助于开发具有可调制的药理动力学和免疫性特征的强效和稳定的ADC.
该方法有望通过简化结合和糖基工程来推进基于ADC的癌症疗法.