配对原子纳米酶具有有效的辅助NAD补充,用于皮肤再生
Xiaoyu Liu1,2, Zhen Wan3, Ke Chen1
1Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China.
Nano letters
|April 15, 2024
概括
新的纳米酶模仿NADH氧化酶,将有害的NADH转化为有益的NADH+. 通过减少炎症,RhCo纳米酶显示出促进皮肤再生的潜力.
科学领域:
- 生物模拟纳米技术纳米技术
- 酶催化酶的催化作用
- 生物医学工程 生物医学工程
背景情况:
- 过度积累减少的尼古丁胺胺氨基二核酸 (NADH) 与各种疾病有关.
- 有效地将NADH转化为NAD+仍然是一个重大挑战.
- NADH氧化酶 (NOX) 酶催化这种必要的氧化.
研究的目的:
- 设计和合成模仿NOX活动的新型聚金属纳米酶 (MANs).
- 研究RhCo MAN在促进NAD+再生和皮肤修复方面的有效性.
- 探索MANs在治疗炎症性皮肤疾病中的治疗潜力.
主要方法:
- 设计和合成具有多金属活性中心的M1M2交配原子纳米酶 (MAN).
- 使用动力参数 (Km-NADH) 评估NOX类活性.
- 在皮肤模型中评估MANs对巨细胞极化和TLR4表达的影响.
主要成果:
- RhCo MAN在低Km-NADH (16.11μM) 的情况下表现出强大且持续的NOX类活性.
- 通过TLR4下调,RhCo MAN有效地促进了NAD+再生和M2巨细胞两极分化.
- RhRu和RhMn MANs在湿疹模型上显示出有限的影响.
结论:
- 多金属纳米酶为NADH/NAD+稳态提供了一个有前途的策略.
- RhCo MAN显示出抑制皮肤炎症和促进皮肤再生的潜力.
- 这项工作提出了一种新的方法,用于开发类似酶的纳米材料,用于治疗应用.
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