一个抗体依赖的细胞细胞毒性试验检测ocrelizumab 中和抗体
Van Nguyen1, Anthony Cheung2, Robert Hendricks2
1Department of BioAnalytical Sciences, Genentech, Inc., 1 DNA Way, South San Francisco, California, 94080, USA. nguyev21@gene.com.
The AAPS journal
|October 2, 2023
概括
一种新的测试检测了对多发性硬化症治疗方法ocrelizumab的中和抗体. 这种抗体依赖的细胞细胞毒性测试使用准备好使用的细胞在临床试验中进行可靠的检测.
科学领域:
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
- 生物技术是生物技术.
背景情况:
- 奥克雷利祖马布是一种单克隆抗体,用于治疗复发性和初级渐进性多发性硬化症.
- 检测中和抗体 (NAbs) 对于监测治疗疗效和患者反应至关重要.
- 开发一个强大的NAb测定ocrelizumab对于临床试验分析至关重要.
研究的目的:
- 开发和验证一种可靠的抗体依赖细胞细胞毒性 (ADCC) 基中和抗体 (NAb) 试验.
- 在参与ocrelizumab临床试验的患者中检测抗ocrelizumab NAbs.
- 为NAb测试开发制定战略和技术考虑因素.
主要方法:
- 设计了一个两层测试系统,包括查和确认测试.
- 作为解和使用试剂,准备了MEC-2细胞 (目标) 和工程NK细胞 (效应器).
- 该试验通过ADCC测量目标细胞溶解,由释放的素AM的光表示.
主要成果:
- 经过验证的NAb试验显示相对灵敏度为743 ng/mL.
- 该试验可以检测到1500 ng/mL的代用阳性对照抗体,在存在1500 ng/mL的ocrelizumab.
- 这是第一个报告的NAb试验,使用同时解和使用的目标细胞和效应细胞直接测量目标细胞溶解.
结论:
- 一个基于ADCC的强大的NAb测定对ocrelizumab已经成功开发和验证.
- 该试验提供了一种可靠的方法来检测患者样本中的抗ocrelizumab NAbs.
- 使用解和使用细胞为临床试验实施提供了实际优势.
关键词:
ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC is also known as ADCC ADCC ADCC is also known as ADCC这就是NAbsbs的意义.这就是OCREVUS®.这就是Ocrelizumab.解并使用.更多相关视频
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