2026-10-23 · 原文发表于 2026-09-17
锌硅微球在感染与糖尿病动物创面模型中显示修复潜力
Deng F, Liu Z, Shao Y, Chen X, Zhang K, Feng Y, Zeng J, Han D, Xu S, Ning C.. Zinc silicate microspheres-mediated bacterial metabolic interference and microenvironment remodeling for chronic wound repair. Bioactive materials. 2027;67:902-921. doi:10.1016/j.bioactmat.2026.07.052. PMID:42775102.
查看原始文献（Europe PMC · 创面修复文献）↗研究问题
摘要将感染、炎症和再生障碍列为慢性创面修复的关键难题，并指出现有治疗平台难以将这些环节整合为统一策略。因此，作者设计了兼顾抗菌与创面微环境调节的锌硅花状微球。
研究设计
主要发现
如何理解
局限与不确定性
一句话带走
作者报告的动物实验结果支持将锌硅花状微球作为兼顾细菌代谢干扰与创面微环境调节的候选材料继续研究。其人体疗效、安全性及相对现有治疗的优势仍需临床证据验证。
术语小注
- 锌硅花状微球（ZnSi FMPs）：
- 本研究设计的锌硅材料，具有花状纳米片分层结构，并可持续释放锌离子。
- 创面微环境重塑：
- 调节创面局部的炎症、感染和血管生成等状态，使其更有利于组织修复。
- ABC转运蛋白：
- 利用能量跨细胞膜运输物质的一类蛋白，参与细菌的物质交换和代谢。
- 补体和凝血级联通路：
- 涉及免疫防御与凝血的一系列连续反应，也与炎症调节有关。
- Areg/HB-EGF–ErbB信号通路：
- 由Areg、HB-EGF等信号分子与ErbB受体系统参与的细胞信号网络；本研究报告其激活与修复相关变化同时出现。
- CD163、CD206、CD31和α-SMA：
- 用于辅助观察细胞状态和组织变化的标志物，分别常用于评估巨噬细胞相关状态、血管内皮及平滑肌或肌成纤维细胞相关变化；不能单凭表达升高判定修复质量。
展开原文摘要
Chronic wounds have presented a significant clinical challenge due to persistent infection, uncontrolled inflammation, and impaired tissue regeneration. Existing therapeutic platforms have failed to integrate these critical aspects into a single, cohesive strategy. To address this, a novel multifaceted agent, zinc silicate flower-like microsphere (ZnSi FMPs), was designed with controlled hierarchical architecture to achieve chronic wound repair by mediating bacterial metabolic interference and microenvironment remodeling. The unique nanosheet structure with sustained Zn 2+ release endows ZnSi FMPs with favorable pH-independent antibacterial activity. This activity is mechanistically rooted in metabolic interference against Staphylococcus aureus ( S . aureus ), including disruption of ABC transporters and inhibition of the biosynthesis of essential amino acids ( valine, leucine, isoleucine ) and ribosomes . Concurrently, ZnSi FMPs can promote microenvironment remodeling by modulating inflammatory responses and angiogenesis, evidenced by suppressed inflammation mediated by the complement and coagulation cascades pathway and robust activation of the Areg/HB-EGF -mediated ErbB signaling pathway . Hence, in both S. aureus -infected and diabetic wound models (mice and minipigs), ZnSi FMPs exhibited superior chronic wound healing capacity compared with commercial silver sulfadiazine® (AgSD) and 45S5 bioglass®. This improved healing was achieved through enhanced antibacterial activity, anti-inflammatory effects, and angiogenesis, accompanied by elevated expression of CD163, CD206, CD31 and α-SMA . By synergizing bacterial metabolic interference with microenvironment regulation, ZnSi FMPs effectively facilitate tissue healing and provide a promising candidate for clinical wound treatment.
本站中文摘要：这项前临床研究在金黄色葡萄球菌感染创面和糖尿病小鼠、小型猪创面模型中评估花状锌硅微球（ZnSi FMPs）。材料可持续释放Zn²⁺，表现出不依赖pH的抗菌活性，并通过干扰金黄色葡萄球菌ABC转运体及缬氨酸、亮氨酸、异亮氨酸和核糖体相关生物合成，同时调节炎症反应和血管新生，促进创面微环境重塑。