相关实验视频

Updated: Jan 11, 2026

Injections of Lipopolysaccharide into Mice to Mimic Entrance of Microbial-derived Products After Intestinal Barrier Breach

Injections of Lipopolysaccharide into Mice to Mimic Entrance of Microbial-derived Products After Intestinal Barrier Breach

Published on: May 2, 2018

用于TLR4-介导的微生物群-免疫调节的LPS结合凝

Jiali Chen¹, Chenzhou Wu¹, Renjie Yang²

¹State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.

Advanced materials (Deerfield Beach, Fla.)

|November 19, 2025

概括

一种新的水凝有效地清除伤口中的脂多糖 (LPS),恢复细菌平衡,促进组织愈合. 这种生物材料结合了抗微生物和免疫调节特性,用于增强再生疗法.

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
再生医学是一种再生医学.

背景情况:

来自格拉姆阴性细菌的脂聚糖 (LPS) 激活免疫系统,并在微生物失衡期间阻碍组织修复.
目前的LPS清理方法难以获得脂质A,核心成分,由于细菌结构的屏蔽.
在口腔裂修复中常见的口鼻伤很容易感染和愈合并发症.

研究的目的:

开发一种协同作用的水凝 (OCMC-PMBP),用于有效捕获LPS和细菌溶解.
研究LPS-Toll类受体4 (TLR4) 信号在免疫失调和口腔伤口愈合障碍中的作用.
为了评估水凝在解决异位生态引起的炎症和促进再生愈合方面的疗效.

主要方法:

开发一种双重作用的水凝,该水凝结合了多素B (PMB) 和聚乙烯胺 (PEI).
将水凝应用于小鼠的口腔孔伤口模型.
分析伤口微生物组,免疫细胞表型和组织再生,使用16SrRNA测序,元基因组学和单细胞转录组学.

主要成果:

OCMC-PMBP水凝显著降低了LPS水平,并恢复了微生物平衡.
治疗抑制了炎症,加速了上皮再生和伤口部位的原重塑.
水凝调节了免疫细胞表型和细胞相互作用,促进了亲再生的环境.

结论:

OCMC-PMBP水凝为管理LPS驱动的炎症和增强复杂的粘膜伤口愈合提供了一个有希望的策略.
这种生物材料设计整合了抗微生物和免疫调节功能,以应对失生症并促进组织再生.
准LPS和恢复免疫平衡对于在易受感染的条件下有效的伤口愈合至关重要.

关键词:

这是一种水凝.脂多糖类糖化物 (Lipopolysaccharide) 是一种脂多糖类糖.我们的微生物群.鼻腔穿孔的伤口聚氨酸B的多种成分

更多相关视频

Screening Bioactive Nanoparticles in Phagocytic Immune Cells for Inhibitors of Toll-like Receptor Signaling

Screening Bioactive Nanoparticles in Phagocytic Immune Cells for Inhibitors of Toll-like Receptor Signaling

Published on: July 26, 2017

Functional Assessment of Intestinal Permeability and Neutrophil Transepithelial Migration in Mice using a Standardized Intestinal Loop Model

Functional Assessment of Intestinal Permeability and Neutrophil Transepithelial Migration in Mice using a Standardized Intestinal Loop Model

Published on: February 11, 2021

相关概念视频

Formation of Lipopolysaccharides

Formation of Lipopolysaccharides

Lipopolysaccharides (LPS) are crucial components of the outer membrane of Gram-negative bacteria, serving both structural and functional roles. It contributes to membrane stability and protects bacteria from host immune responses. LPS is composed of three major regions—lipid A, a core oligosaccharide, and an O antigen. The biosynthesis and assembly of LPS involve a highly coordinated set of enzymatic reactions and transport mechanisms. Additionally, LPS is recognized as an endotoxin,...