抗染免疫调节性共聚物架构,可以抑制植入物的纤维化
William J Jeang1,2,3, Bryan M Wong4, Yichao Zhao2,3,5
1Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
Advanced materials (Deerfield Beach, Fla.)
|December 25, 2024
概括
新的抗污染免疫调节 (AIM) 共聚合物涂层抵抗植入物纤维化. 独特的AIM聚合物架构显著提高了小鼠的纤维化抵抗力,增强了植入物保护.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 聚合物化学 聚合物化学
背景情况:
- 医疗植入失败通常是由于免疫反应导致纤维组织封装造成的.
- 植入物上的蛋白质吸附启动免疫细胞的附着和炎症,导致纤维化.
- 现有的抗纤维素材料专注于减少蛋白质吸附或单独调节炎症.
研究的目的:
- 开发新的抗染免疫调节 (AIM) 共聚合物涂层,将蛋白质抵抗和免疫调节结合起来,以增强植入物保护.
- 研究聚合物架构对AIM共聚物的抗纤维素疗效的影响.
- 评估AIM涂层在各种可植入基板上的性能.
主要方法:
- 合成AIM共聚合物,集成zwitterionic部分 (用于防),高通量屏幕 (HTS) 衍生的抗纤维剂 (用于免疫调节) 和西兰单体 (用于移植).
- 评估不同的共聚合物架构,包括随机,块和一个由混合的zwitterionic免疫调节片段对着一个新的zwitterionic块.
- 在免疫能力较强的小鼠 (腹腔和皮下部位) 中,在一个月内对植入物上的AIM涂层进行体内测试,以评估纤维化抵抗力.
主要成果:
- 一个特定的AIM共聚合物架构,包括一个与混合的zwitterionic免疫调节段相邻的zwitterionic块,与传统架构相比,显示出优越的纤维化抵抗力.
- 这种独特的架构增强了HTS衍生的单体的抗纤维性能.
- AIM涂层在腹部和皮下植入部位均显示出有效性.
结论:
- 定制AIM共聚合物架构对于协同抗和免疫调节效应至关重要,从而显著改善纤维化耐药性.
- 开发的AIM涂层提供了一种多功能方法,以提高各种医疗植入物的寿命和性能.
- 这项研究强调了先进的聚合物设计在克服植入物相关免疫反应方面的潜力.
相关概念视频
Structural Protein Function
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to form...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to form...
Drugs that Stabilize Microtubules
Microtubules are dynamic structures that undergo cycles of catastrophe and rescue. The microtubules play a central role in cell division by forming the spindle apparatus for segregating the chromosomes. This makes them ideal targets for regulating dividing cells in tumors and malignant cancer cells. Microtubule stabilizing drugs help stabilize the microtubule formation and promote its polymerization. Paclitaxel was the first microtubule stabilizing agent used as anticancer drug in chemotherapy...
Drugs that Destabilize Microtubules
Microtubules are dynamic structures and can be regulated by microtubule targeting agents (MTAs). Microtubule destabilizing drugs are a class of MTAs that destabilize and prevent microtubules' polymerization. Both natural and synthetic chemicals can be found under this class of drugs. Vincristine and vinblastine, two vinca alkaloids, and colchicine were among the first to be discovered. These drugs can affect cells in various ways, either by inducing a change in cell morphology, preventing...


