生物活性树作为一种通用蛋白质输送系统,用于增强抗炎疗法
Huxiao Sun1, Mengsi Zhan1, Andrii Karpus2,3
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, P. R. China.
ACS nano
|January 9, 2024
概括
阳离子树状体为输送治疗性蛋白质提供安全有效的平台. 这些纳米载体具有固有的抗炎性质,提高治疗炎症疾病的疗效.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 为蛋白质提供正电荷的纳米载体可以引起毒性.
- 治疗性蛋白质通常需要增强生物活性,以有效治疗疾病.
- 开发安全和生物活性纳米载体对于先进的蛋白质疗法至关重要.
研究的目的:
- 开发一种离子纳米载体系统,用于蛋白质的输送.
- 创建具有内在抗炎活性的纳米载体.
- 通过结合载体和蛋白质生物活性来提高治疗疗效.
主要方法:
- 使用的离子酸盐终结树状体 (AK-137).
- 复杂模型蛋白 (BSA,RNase A,OVA,FN) 与AK-137通过物理相互作用.
- 评估细胞转染和功能蛋白活性.
- 在疾病模型中评估AK-137@FN纳米复合物的治疗效果.
主要成果:
- AK-137显示出优化的抗炎活性.
- 模型蛋白质成功地被输送到细胞中,执行诸如亡诱导和免疫调节之类的功能.
- 在急性肺损伤和痛风关节炎模型中,AK-137@FN纳米复合体显示出显著的治疗效果.
- AK-137和纤维内素 (FN) 的联合抗炎活性增强了治疗结果.
结论:
- 无离子酸盐终结树状体作为有效和安全的蛋白质载体.
- 这个系统可以用来输送各种蛋白质来发挥特定的细胞功能.
- 开发的纳米载体通过提供具有增强效力的蛋白质来治疗炎症性疾病具有前景.
相关概念视频
Phosphoinositides and PIPs
8.5K
Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
8.5K
Drug Distribution: Tissue Binding
2.6K
Upon entering the systemic circulation, drugs can distribute into the interstitial and intracellular fluid of various tissue cells. This distribution is facilitated by the binding of drugs to different cellular components within tissues, which may lead to drug accumulation in specific areas. Drugs bound to tissue components serve as reservoirs that release free drugs back into the system, prolonging the drug's overall action. However, this accumulation can also result in local toxicity.
For...
For...
2.6K
IP3/DAG Signaling Pathway
12.1K
Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and...
12.1K


