AJICAP-M:无痕亲和介导结合技术,用于选择性抗体和药物结合物合成
Yutaka Matsuda1,2, Natsuki Shikida1, Noriko Hatada1
1Ajinomoto Co., Inc., 1-1, Suzuki-Cho, Kawasaki-Ku, Kawasaki-Shi, Kanagawa 210-8681, Japan.
Organic letters
|April 19, 2024
概括
一种新的无痕点选择性结合方法,AJICAP-M,可以创建稳定的抗体-药物结合物 (ADCs),具有一致的药物比率. 这一突破使得先进的ADC治疗方法的简化制造和改善体内稳定性成为可能.
科学领域:
- 生物结合化学 生物结合化学
- 抗体工程 抗体工程
- 制药制造业 制药制造业 制药制造业
背景情况:
- 传统的抗体 - 药物合物 (ADC) 生产方法往往产生异质的产品,具有可变的药物 - 抗体比率 (DAR).
- 在本地抗体中实现特定位点的结合仍然是ADC开发的重大挑战.
- 现有的方法可能会导致稳定性降低和复杂的制造工艺.
研究的目的:
- 开发一种无痕迹的,针对本地抗体选择性结合方法.
- 产生抗体 - 药物联合体 (ADCs),具有一致的药物 - 抗体比率 (DARs) 和增强的稳定性.
- 为了证明该方法在连续流制造中的适用性.
主要方法:
- 开发AJICAP-M (抗体特异性J-in-situ结合和净化方法) 平台.
- 使用Fc亲和性来向原生抗体上的特定氨酸残留物 (Lys248或Lys288).
- 通过AJICAP-M产生的ADCs的药物对抗体比,稳定性和纯度的表征.
- 在体内评估,将AJICAP-M衍生ADC与传统ADC进行比较.
- 在连续流量制造设置中应用AJICAP-M.
主要成果:
- AJICAP-M 能够在特定的 lysine 位点将有效载荷与原生抗体进行无痕,位点选择性的结合.
- 该方法始终产生具有定义的药物对抗体比率 (DAR) 的ADC.
- 使用AJICAP-M生成的ADC在体内研究中表现出与传统生产的ADC相比的增强稳定性.
- 在连续流量制造中成功实施AJICAP-M,这是首次在选址ADC生产中成功实施.
- 简化了制造过程,提高了产品的一致性.
结论:
- AJICAP-M是一种强大而高效的方法,用于生产同质的抗体-药物联合体.
- 该技术在ADC稳定性,制造简单性和产品质量方面提供了显著的优势.
- AJICAP-M代表了在选址ADC生产和生物结合领域的重大进展.
- 成功整合到连续流制造,为可扩展和可重复的ADC合成铺平了道路.
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