协同氨基和基组,增强SOD-Like活动在黄素碳点改善结肠炎治疗
Yan Du1, Xuehui Duan1, Hanxiao Liu1,2,3
1School of Pharmaceutical Sciences and Institute of Materia Medica, Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China.
ACS applied materials & interfaces
|August 18, 2025
概括
工程碳点通过减少炎症和恢复肠道细菌平衡,有效治疗结肠炎. 这种纳米治疗方法为管理炎症性肠病 (IBD) 提供了一个有希望的新策略.
科学领域:
- 纳米医学是一种纳米医学.
- 材料科学 材料科学 材料科学
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
背景情况:
- 炎症性肠病 (IBD) 由于有限的选择和有效性安全性问题,提出了重大治疗挑战.
- 目前的治疗方法往往在有针对性的治疗和管理IBD复杂的炎症级联和肠道失调症方面扎.
研究的目的:
- 开发和评估聚乙烯胺 (PEI) 功能化黄素衍生碳点 (cu@CDs-po) 作为一种用于结肠炎的多功能纳米疗法.
- 调查作用机制,包括反应性氧物种 (ROS) 清除,免疫调节和肠道微生物群重塑.
主要方法:
- 对PEI功能化碳点 (cu@CDs-po) 的合理设计和合成.
- 在实验室中对超氧化物脱酶 (SOD) 类活性,ROS清除和细胞吸收的评估.
- 在小鼠硫酸 (DSS) 诱导性结肠炎模型中的体内评估,包括组织学分析,细胞因子分析,免疫细胞评估和16S rDNA测序用于肠道微生物群分析.
主要成果:
- cu@CDs-po表现出显著增强的SOD类活性 (增加5.51倍) 和ROS清理能力,这是由于协同的表面化学.
- 该纳米疗法有效地缓解了结肠损伤,恢复了肠道屏障的完整性,抑制了促炎细胞因子,并在体内调节了免疫微环境.
- cu@CDs-po诱导了向肠道微生物群的重塑,恢复了Firmicutes/Bacteroidota比率,并丰富了有益的细菌,与改善的代谢和免疫通路有关.
结论:
- 催化碳点的表面化学引导工程为IBD纳米医学提供了可翻译的策略.
- cu@CDs-po显示出作为一种能够同时调节氧化应激,免疫反应和肠道微生物群平衡的多功能剂的潜力.
- 这种方法提供了一个有前途的治疗范式,通过解决多种病理方面来管理炎症性肠病.
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