纳米颗粒结合性免疫球蛋白预测健康和疾病队列中的可变补充反应
Yue Li1,2, Laura Saba2, Robert I Scheinman2,3
1Translational Bio-Nanosciences Laboratory, The Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States.
ACS nano
|October 12, 2024
概括
像PEG这样的纳米粒子涂层可以激活补充系统. 反PEG抗体,特别是IgM,预测对PEG化脂质体多克索鲁比辛 (PLD) 的高补充反应,提高了纳米药物安全性.
科学领域:
- 生物医学工程 生物医学工程
- 免疫学 免疫学 免疫学
- 纳米技术 纳米技术
背景情况:
- 系统性纳米药物管理激活补充级联,导致免疫反应.
- 预测高补充反应器对于纳米医学的安全性和有效性至关重要.
- 聚乙烯甘醇 (PEG) 和德克斯是常见的聚合物涂层,可以触发补体激活.
研究的目的:
- 分析影响PEGylated脂质体 doxorubicin (PLD) 和配涂层超偏磁性氧化铁纳米 (SPIO NWs) 的补充激活的因素.
- 确定生物标志物,预测纳米药物的高补体激活风险.
主要方法:
- 在暴露于PLD和SPIO NWs的患者和供体血中对补体激活 (C3沉积) 的多方面的分析.
- 补充激活与患者因素 (年龄,炎症,感染,性别) 和血生物标志物 (补充因素,免疫球蛋白) 的相关性分析.
主要成果:
- 补充激活发生了显著的变化 (PLD的29倍,SPIO NW的26倍).
- 年龄与补充激活相反相关;其他因素有轻微的影响.
- 抗PEG IgM标位强烈预测了PLD的高补体激活,而抗德克斯抗体对SPIO NWs的相关性较弱.
- 纳米粒子结合的免疫球蛋白与补充激活的最佳相关性和预测.
结论:
- 反PEG IgM是PLD高补充激活的关键预测生物标志物.
- 纳米粒子结合的免疫球蛋白在启动补充反应方面发挥着至关重要的作用.
- 描述纳米粒子结合抗体对于纳米医学安全性和风险分层至关重要.
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