微环境响应的金属纳米酶释放平台,具有抗菌,ROS清除和骨质生成,用于牙周炎
Yingying Xu1,2, Yifan Luo2, Zhenzhen Weng3
1The Affiliated Stomatological Hospital, Nanchang University, Nanchang, Jiangxi 330006, P. R. China.
ACS nano
|September 28, 2023
概括
一种新的水凝系统在需要时释放铜酸纳米酶以对抗牙周炎. 这种治疗可以清除生物膜,通过调节巨细胞来减少炎症,并促进牙周组织再生.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 牙周病学 牙周病学
背景情况:
- 牙周炎是一种慢性炎症性疾病,由于牙斑造成牙周组织破坏.
- 目前的治疗方法与细菌生物膜,炎症和组织再生作斗争.
- 过度反应性氧物种 (ROS) 和矩阵金属蛋白酶 (MMP) 是牙周炎进展的关键因素.
研究的目的:
- 开发一个多功能纳米酶输送平台,用于牙周炎治疗.
- 为铜酸 (CuTA) 纳米酶创建一个按需释放系统.
- 为了评估TM/BHT/CuTA水凝在牙周炎的治疗疗效.
主要方法:
- 铜酸协调纳米片 (CuTA NSs) 与TM/BHT水凝的自组装.
- 静电吸附以保留在炎症部位和MMP响应性水解以随时释放.
- 评估抗菌,抗斑,ROS清理,巨细胞极化调节和骨质基因表达效应.
主要成果:
- TM/BHT/CuTA水凝证明了CuTA纳米酶在炎症部位的按需释放.
- 释放的CuTA纳米酶表现出强大的抗菌和抗斑活性.
- CuTA纳米酶有效地清除了ROS,通过Nrf2/NF-κB通路从M1到M2调节了巨细胞极化,减少了促炎细胞因子,并促进了骨质生成.
结论:
- TM/BHT/CuTA 水凝系统为牙周炎治疗提供了一个有前途的策略.
- 这个平台有效地解决了细菌生物膜,过度炎症和受损的组织再生问题.
- 按需释放多功能CuTA纳米酶有助于牙周组织的修复和再生.
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