工程融合蛋白质用于基于纳米医学的细胞因子治疗
Anne de Dreu1,2, Koen de Bruin1,2, Ayla M Hokke1,2
1Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven 5600 MB, the Netherlands.
Bioconjugate chemistry
|July 11, 2025
概括
工程融合蛋白制造出新的纳米粒子 (细胞因子-aNP),改善治疗性细胞因子的传递和体内特性,增强它们治疗免疫媒介疾病的潜力.
科学领域:
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
- 免疫学 免疫学 免疫学
背景情况:
- 细胞因子对免疫和细胞通信至关重要,在免疫介导疾病中显示出治疗潜力.
- 目前的细胞因子疗法面临的挑战是血液半衰期短,生物分布差,导致毒性.
- 改善细胞因子的药理动力学对于有效的临床转化至关重要.
研究的目的:
- 开发一种新的策略来增强细胞因子的药物动力学概况.
- 为了设计融合蛋白质,将阿波利波蛋白和细胞因子结合起来,用于纳米粒子配方.
- 评估这些新型细胞因子纳米粒子的稳定性,活性和体内行为.
主要方法:
- 通过使用重组方法将阿波利波蛋白A1或E与白细胞间蛋白1β,2或4结合而设计的融合蛋白.
- 配制的融合蛋白质变成基于阿波利波蛋白的纳米粒子 (细胞因子-aNP).
- 评估了纳米粒子的稳定性,大小,形状和细胞因子活性.
- 在小鼠中利用-89放射标记和体内正子辐射断层扫描成像来追踪生物分布.
主要成果:
- 重组表达产生了适合纳米粒子配方的纯净和生物活性融合蛋白.
- 所有开发的细胞因子-aNP都在10天内表现出稳定性和一致的物理特征.
- 在净化后和纳米颗粒配方后,细胞因子活性保持不变.
- 在体内成像显示,细胞因子-aNPs的生物分布发生了显著的改变,与原生细胞因子相比,在脏,骨髓,淋巴结和肝脏的积累优先.
结论:
- 融合蛋白技术与基于阿波利波蛋白的纳米粒子 (cytokine-aNPs) 结合,有效地改善了细胞因子的体内特性.
- 这种方法为基于纳米医学的细胞因子疗法提供了一个有希望的翻译途径.
- 细胞因子-aNP的增强生物分布和稳定性解决了传统细胞因子治疗方法的关键局限性.
更多相关视频
08:02Isolation of Primary Cancer-Associated Fibroblasts from a Syngeneic Murine Model of Breast Cancer for the Study of Targeted Nanoparticles
Published on: May 14, 2021
5.8K
06:26Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization
Published on: January 24, 2025
1.2K
相关概念视频
Tagging and Fusion Proteins
6.9K
Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
6.9K
Tumor Immunotherapy
664
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
664
