在人血清中定量贝瓦齐祖马布的生物分析方法:ELISA与MSD对比
Vikas Chandnani1,2, Sanjay Tiwari3, Manoj Bob2
1Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576 104, India.
Biochemistry and biophysics reports
|February 9, 2026
概括
我们开发并评估了两种对抗血管内皮生长因子-A单克隆抗体贝瓦齐祖马布 (BVZ) 的药理动力学测试. 与酶相关的免疫吸收试验 (ELISA) 在常规分析中具有成本效益,而Meso Scale Discovery (MSD) 在低度检测中提供了更高的灵敏度.
科学领域:
- 药理动力学和药物开发
- 免疫学和生物分析检测
背景情况:
- 贝瓦西祖马布 (BVZ) 是一种抗血管内皮生长因子-A单克隆抗体,在瘤学和眼科中至关重要.
- 在生物流体中精确量化BVZ对于药理动力学 (PK) 分析和理解药物暴露-反应关系至关重要.
研究的目的:
- 开发和评估与酶相关的免疫吸收试验 (ELISA) 和Meso Scale Discovery (MSD) 免疫试验平台,以量化人类血清中的BVZ.
- 为了比较ELISA和MSD试验的灵敏度和性能,用于BVZ PK分析.
主要方法:
- 开发了一种敏感的桥梁ELISA,使用具有抗异型抗体的斯特雷普塔维丁-生物素检测系统.
- 开发了一种MSD测定方法,使用电化学发光检测与硫标签标签.
- 验证了在人类血清中量化BVZ的两种测定方法.
主要成果:
- 增强型ELISA显示灵敏度比传统ELISA增加了5倍,量化范围为10-220 ng/mL (可扩展到5000 ng/mL).
- 骨髓硬化试验的灵敏度比ELISA高出20倍,检测BVZ低至500 pg/mL.
- 这两种测试均成功验证了人类血清中的BVZ定量.
结论:
- ELISA是一种强大且具有成本效益的方法,适用于常规的贝瓦西祖马布PK分析.
- 在早期临床试验和眼科应用中,MSD测定有利于检测最小的BVZ度.
- 并行评估为根据特定应用需求选择合适的测试提供了指导.
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