纳米辅助剂触发的STING激活引起了系统性免疫疗法,用于重复的植入物相关感染
Dongdong Xu1, Jun Hu2, Jiawei Mei3
1Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, PR China.
Bioactive materials
|January 29, 2024
概括
一种新的纳米辅助剂,CFCP,通过刺激系统性免疫反应,有效治疗与植入物相关的感染 (IRI). 这种方法增强了声动疗法,并促进了长期的抗菌保护,为IRI治疗和预防提供了新的希望.
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
- 整形外科手术 整形外科手术
背景情况:
- 植入物相关感染 (IRI) 是骨科手术中的严重并发症,通常由于细菌生物膜造成免疫沉默环境而持续存在.
- 生物膜保护细菌,阻碍免疫检测,导致慢性或复发性感染,对植入物存活和患者健康构成风险.
研究的目的:
- 开发一种基于铁的纳米辅助剂 (CFCP),通过诱导全身免疫反应,有效治疗IRI.
- 研究CFCP在增强声动力学治疗和调节免疫微环境中的机制,以获得持续的抗菌保护.
主要方法:
- 设计和合成一种以铁为基础的共价有机框架纳米辅助剂,添加了黄素和 (CFCP).
- 评估CFCP在增强声动疗 (SDT) 和诱导免疫反应方面的疗效,包括dDNA释放,通过STING激活成熟的树突细胞 (DC) 和通过IFN-β刺激的中性粒细胞.
- 评估CFCP增强细菌相关抗原 (BAA) 呈现和刺激幽默免疫力的能力.
主要成果:
- CFCP增强了SDT和铁离子代谢干扰,导致细菌相关的双链DNA (dsDNA) 的释放增加.
- 免疫性dsDNA促进了DC成熟 (STING激活) 和放大了中性粒细胞免疫刺激 (IFN-β).
- CFCP增强了BAA呈现,刺激了B细胞和T细胞免疫力,以长期抵抗再感染.
结论:
- CFCP作为一种新辅助免疫疗法,为植入物提供持续的抗菌保护.
- 开发的纳米辅助剂显示出指导IRI临床治疗和复发预防策略的前景.
相关概念视频
Tumor Immunotherapy
526
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.
526
Antigens Involved in Adaptive Immunity
496
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
496
Vaccinations
44.5K
Overview
44.5K


