对PSMA干的Zwitterionic修饰减少了目标外结合和组织保留
Lennart F V Spickschen1, Roland Thünauer2, Aleksander J Swierzewski1
1Department of Chemistry, Institute of Pharmacy, University of Hamburg, Bundesstrasse 45, Hamburg 20146, Germany.
Journal of medicinal chemistry
|March 13, 2026
概括
前列腺特异性膜抗原 (PSMA) 配体中的Zwitterionic修饰显著降低了非目标组织保留. 这一策略增强了瘤吸收和PSMA结合亲和力,为向药物输送提供了一个有前途的方法.
科学领域:
- 药用化学 医学化学
- 药理学 药理学是指药理学的学科.
- 分子成像分子成像技术
背景情况:
- 前列腺特异性膜抗原 (PSMA) 向治疗由于非向组织保留而面临限制.
- 优化PSMA-连接体设计对于改善药物生物分布和治疗疗效至关重要.
研究的目的:
- 为了研究zwitterionic修饰对PSMA-ligand属性的影响.
- 评估zwitterionic组在影响组织分布和瘤吸收方面的作用.
主要方法:
- 光PSMA配体的合成,具有不同的zwitterionic修饰.
- 在实验室中评估PSMA结合亲和力 (IC50).
- 在小鼠体内生物分布研究,使用瘤异种移植.
主要成果:
- 在左边域中引入两个zwitterionic组被证明是有利的.
- 化合物10显示出高的,特定的PSMA结合 (IC50 = 4.39 ± 1.69 nM).
- 化合物10表现出优异的瘤细胞和异种移植的吸收与最小的目标外保留.
结论:
- 对PSMA-连接体的特化有效地减少了非目标组织的保留.
- 这一策略通过固相合成和点击化学简化了合成.
- 兹威特化是一种多功能方法,可应用于其他向载体和放射性药物.
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