一个可定制的抗体输送策略,使用Fc-Affinity Ligands
Daniela Isaacs-Bernal1,2, Noor E Bahsoun1,2, Lia Huo2,3
1Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada.
ACS biomaterials science & engineering
|March 6, 2026
概括
这项研究展示了一种使用水凝和特定联体释放抗体来控制蛋白质输送的新方法. 这种亲和控制释放策略可提供可调节的治疗抗体输送.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 蛋白质工程是指蛋白质的工程.
背景情况:
- 从水凝系统中控制释放治疗性蛋白质,特别是抗体,对于有效治疗至关重要.
- 利用非共价相互作用为亲和控制的蛋白质递送提供了一个多功能平台.
研究的目的:
- 开发和评估一种新的策略,利用亲和相互作用从水凝中控制释放原生抗体.
- 为了设计针对人类IgG1的Fc区域的酸连体,以便在水凝内固定.
主要方法:
- 为人类IgG1.1的Fc区域设计了两个具有不同亲和力的Fc结合配体 (FcL1和FcLPEG) (KD).
- 在化学交叉连接的氨酸-氧化物水凝和物理交叉连接的氨酸-甲基纤维素水凝内的固定连接物.
- 研究了从水凝系统中释放治疗抗体 (贝瓦西祖马布,阿达利穆马布) 的释放动力学.
主要成果:
- 控制释放的生物活性贝瓦齐祖马布使用更高亲和度的FcL1连接体在氨酸-氧胺水凝中实现.
- 较低亲和度的FcLPEG连接体没有促进受控释放.
- 在7天的时间内,在氨酸-甲基纤维素水凝系统中,可调节的释放多个IgG1抗体被证明.
结论:
- 开发的亲和控制释放策略广泛适用于调整水凝的抗体输送.
- 这种方法可以精确控制治疗抗体的释放,从而提高其潜在的临床效用.
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