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Abdulaziz M Aldayel^1,2,3, Stephanie Hufnagel⁴, Hannah L O'Mary⁴

¹College of Pharmacy, Division of Molecular Pharmaceutics and Drug Delivery, The University of Texas at Austin, Austin, TX, 78712, USA. Abdulazizaldayel777@gmail.com.

|August 22, 2023

概括

纳米颗粒大小影响慢性炎症的药物输送. 较大的纳米粒子 (100-200纳米) 显示出更好的向炎症组织,增强治疗保留和选择性.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
药理学药理学是指药理学的学科.

背景情况:

慢性炎症疾病越来越令人担忧,需要先进的治疗策略.
纳米药物为向药物输送提供了潜力,但优化其在疾病部位的分布和保留仍然具有挑战性.
了解炎症与健康组织中的纳米粒子行为对于有效治疗至关重要.

研究的目的:

研究纳米颗粒大小对慢性炎症部位的分布和保留的影响.
开发刺激响应蛋白质纳米颗粒,以增强向和延长炎症组织中的释放.
评估工程纳米药物的可行性,以提高慢性炎症部位的选择性和保留性.

主要方法:

用PEGylated金纳米粒子 (2,10,100,200纳米) 来研究慢性炎症的小鼠模型中的尺寸依赖分布和清除.
装载着白蛋白,IgG或抗TNF-α单克隆抗体 (mAb) 的蛋白质纳米粒子 (100-200nm) 被设计为刺激响应释放.
刺激反应的蛋白质纳米颗粒的生物分布和保留与未响应的纳米颗粒和体内自由蛋白质进行了比较.

主要成果:

较小的金纳米颗粒 (2,10纳米) 与较大的 (100,200纳米) 相比,在炎症组织中分布更大,但清除速度较慢.
较大的金纳米颗粒 (100,200纳米) 对炎症的脚比健康的脚具有更高的选择性.
与不响应的对应物和自由蛋白相比,对刺激有反应的蛋白质纳米颗粒显示出增强的选择性分布和在炎症部位的长时间保留.

结论:

纳米粒子大小是影响慢性炎症部位选择性积累和保留的关键因素.
工程刺激响应蛋白质纳米颗粒可以显著提高准效率和治疗停留时间.
这些发现支持开发先进的纳米药物,以更有效地治疗慢性炎症疾病.

关键词:

慢性炎症是一种慢性炎症.纳米颗粒纳米颗粒储存储存储存储存储存这取决于尺寸.具体性具体性具体性

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