H2S-释放的多功能蒙莫里龙石纳米配方三重复性地更新了肠道微环境,以调节炎性肠病
Ting Jin1, Hongyang Lu1, Qiang Zhou2
1School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China.
一种新的纳米配方,DPS@MMT,释放硫化 (H2S) 以有效治疗炎症性肠病 (IBD). 这种创新的治疗方法修复了肠道屏障,减少了炎症,并恢复了微生物平衡,以改善IBD管理.
科学领域:
- 生物材料科学 生物材料科学
- 胃肠病学 胃肠病学
- 纳米技术 纳米技术
背景情况:
- 炎症性肠病 (IBD) 的发病包括免疫系统失调,屏障损伤和病原体入侵.
- 目前的IBD治疗方法具有有限的疗效和相当大的副作用.
- 需要创新的治疗策略来恢复肠道平衡.
研究的目的:
- 开发和评估一种释放H2S的纳米配方 (DPs@MMT) 用于治疗IBD.
- 研究DPs@MMT对肠道免疫系统,屏障功能和肠道微生物群的治疗作用背后的机制.
主要方法:
- 电静电吸附二三硫化物载树脂分子纳米凝 (DPs) 在蒙莫里隆石 (MMT) 上,以创建DPs@MMT.
- 通过直肠给药DPs@MMT,以向向炎症的肠部位.
- 在体外和体内研究,包括RNA和16SrRNA测序,以评估治疗疗效和分子机制.
主要成果:
- DPs@MMT通过减少活性氧物种 (ROS),抑制炎症和修复粘膜屏障,有效地缓解结肠炎.
- 纳米配方通过消除病原体和促进有益细菌来调节肠道微生物群.
- DPs@MMT激活了Nrf2/HO-1和PI3K-AKT等通路,同时抑制了促炎通路 (p38/ERK MAPK,NF-κB,JAK-STAT3).
结论:
- DPs@MMT是IBD管理的有希望的纳米配方,因为它能够释放H2S并产生多方面的治疗效果.
- 纳米配方成功地重塑肠道免疫平衡,修复粘膜屏障,并调节肠道微生物群.
- 这项研究提出了一种新的策略,用于开发用于炎症性肠道疾病的先进纳米药物.
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