一个Janus-ROS治疗系统,通过Sono-Epigenetic调制促进传染性骨再生
Liang Ma1, Yu Cheng2, Xiaobo Feng1
1Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
Advanced materials (Deerfield Beach, Fla.)
|October 19, 2023
概括
这项研究引入了一种新的Janus-ROS治疗系统,用于传染性骨疾病. 它使用有缺陷的金属有机框架 (MOF) 来消除细菌,并通过受控反应性氧物种 (ROS) 促进骨再生.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 纳米技术纳米技术
背景情况:
- 传染性骨病需要同时消除细菌和骨质分化.
- 反应性氧物种 (ROS) 起着双重作用,高水平会造成损伤,低水平会信号细胞命运.
- 目前的治疗方法往往难以有效地治疗感染和骨再生.
研究的目的:
- 开发一个用于感染性骨再生的Janus-ROS治疗系统.
- 创建一个阿伦德罗纳特 (ALN) 介导的有缺陷的金属有机框架 (MOF) 声敏剂,用于双重作用.
- 研究该系统在清除抗甲素黄金葡萄球菌 (MRSA) 和促进骨质分化的有效性.
主要方法:
- 制备一个ALN介导的缺陷的基MOF (HN25) 与酸协调.
- 在超声波照射下对MRSA的声动力抗菌效率的评估.
- 通过低ROS度和染色体可访问性调节促进骨质生成差异化的评估.
- 在体内测试使用动物模型的准脊椎感染,感染骨折和骨髓炎.
主要成果:
- HN25显示出高声动力抗菌效率 (15分钟内达到98.97%) 和准骨的能力.
- 使用HN25的低功率超声波照射通过增加骨化相关基因和FOXO1.1.的染色质可访问性来促进骨修复.
- 在动物模型中,成功地对各种感染性骨组织进行了有针对性的修复,迅速消除了MRSA,抑制了骨质细胞活性,并增强了骨再生.
- 通过制药媒介的缺陷工程使得高度催化和生物活性MOF的建造成为可能.
结论:
- 开发的Janus-ROS治疗系统有效地清除MRSA感染,并促进骨质分化,用于传染性骨再生.
- MOFs的缺陷工程为创造高效和生物活性治疗剂提供了一个有希望的策略.
- 这种双重作用的方法在治疗传染性骨疾病方面取得了重大进展.
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