在口服药片中蛋白质和多糖类辅料之间的兼容性
Meng-Jia Jin1,2, Zhen-Yi Jing1,2, Li-Duo Liu1,3
1Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
Molecular pharmaceutics
|May 5, 2025
概括
碳甲基粉 (CMS) 与特拉斯图祖马布 (TRA) 等蛋白质发生静电相互作用,降低可溶性蛋白质度. 这种取决于pH值的相互作用表明,CMS具有持续释放口服蛋白质生物制药的潜力.
科学领域:
- 制药科学 制药科学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 口服蛋白质生物制药是一个不断增长的研究领域.
- 小分子药物中使用的辅助剂通常应用于蛋白质配方.
- 蛋白质和辅助剂之间的相互作用经常被忽视,但对药物性能至关重要.
研究的目的:
- 为了研究蛋白质与常见的口服辅助剂 - - 氧甲基粉 (CMS) 之间的相互作用.
- 了解CMS对蛋白质稳定性,溶解性和生物活性的影响.
- 探索CMS在口服蛋白质输送系统中的潜在应用.
主要方法:
- 尺寸排除高性能液体染色学 (SE-HPLC) 检测可溶性蛋白质度.
- 与酶相关的免疫吸收试验 (ELISA) 用于评估生物活性.
- 分析蛋白质的疏水性和热稳定性.
- 在各种pH条件下研究与多种蛋白质 (trastuzumab,infliximab,etanercept) 的相互作用.
主要成果:
- 碳糖甲基粉 (CMS) 与其他测试过的多糖类不同,导致可溶性特拉斯图祖马布 (TRA) 度显著降低.
- 在特定的pH范围内,CMS与TRA表现出静电相互作用,影响蛋白质单体度,度,疏水性和热稳定性.
- 这种相互作用是可逆的,由于与负电荷的CMS的静电结合,蛋白质的溶解性明显降低到蛋白质的同电点以下.
结论:
- CMS与蛋白质具有强烈的静电相互作用,特别是当蛋白质具有正电荷时 (低于其同电点).
- 这种可逆相互作用表明,CMS可以用于口服蛋白生物制药的持续释放配方,包括单克隆抗体.
- 蛋白质的结构特征,如表面电荷和疏水性,是选择适合口服蛋白质药物产品的辅助剂的关键因素.
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