设计和合成具有低免疫性单体变体的设计和合成
Naoya Iwamoto1, Yukino Sato2, Asako Manabe3
1Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
ACS medicinal chemistry letters
|November 17, 2023
概括
镜像蛋白 (d-蛋白) 为药物发现提供稳定,非免疫性支架. 合成的d-单体显示出作为治疗生物学的希望,因为它们的免疫性比传统蛋白质低.
科学领域:
- 生物化学 生物化学
- 蛋白质工程是指蛋白质的工程.
- 药物发现 药物发现 药物发现
背景情况:
- 镜像蛋白 (d-蛋白) 具有固有的蛋白解稳定性和低免疫性.
- 开发功能性d蛋白的高效合成方法对于治疗应用至关重要.
研究的目的:
- 为治疗应用设计和合成一种新的d-单体变体.
- 评估合成d-单体的结合亲和力和免疫原性质.
主要方法:
- 设计了一种单体变体,用于本地化学结合的囊替代物.
- 促进二硫化物键的形成,以提高蛋白质的稳定性.
- 评估了与增强绿色光蛋白 (GFP) 的结合亲和力.
- 通过在体内给小鼠和监测抗药抗体 (ADA) 生产来评估免疫性.
主要成果:
- 成功合成了一种具有改善稳定性的新型d-单体.
- 合成的d-单体对其目标 (GFP) 显示出良好的结合亲和力.
- 在体内研究表明,与d-单体治疗的小鼠不同,与l-单体治疗的小鼠没有抗药抗体 (ADA) 的产生.
结论:
- 合成的d-单体是一种稳定的,无抗体的蛋白质支架.
- 与它们的L-enantiomers相比,D-单体具有显著较低的免疫原特性.
- 这些发现支持合成d-单体作为具有免疫性降低的治疗生物药物的潜力.
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