RONS清除TePt @碳氧甲基纤维素纳米酶用于慢性肠炎治疗
Xinyan Hu1, Gongxin Zhang1, Lida Tang1
1State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
International journal of biological macromolecules
|July 6, 2025
概括
新的TePt纳米棒有效地清理反应性氧和物种,通过恢复氧化还原平衡来治疗慢性肠炎,并在没有不良影响的情况下促进小鼠的肠道修复.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 慢性肠炎涉及反应性氧和物种 (RONS) 破坏细胞氧化还原稳定,导致组织损伤.
- 有针对性的RONS去除是慢性肠炎的一种有前途的治疗策略.
- 开发新的抗氧化纳米酶对于有效治疗肠炎至关重要.
研究的目的:
- 开发具有抗氧化特性的TePt纳米棒 (TP),用于慢性肠炎治疗.
- 评估TP在清除RONS和保护细胞免受氧化应激的有效性.
- 在DSS诱导的慢性肠炎小鼠模型中评估TP的治疗潜力.
主要方法:
- TePt纳米棒 (TP) 的合成和表征.
- 评估TP的pH依赖的酶活性 (超氧化物脱酶和酶).
- 在体外评估TP能够清除细胞内RONS并保护细胞的能力.
- 在体内研究,使用硫酸 (DSS) 诱导的慢性肠炎的小鼠模型.
主要成果:
- 在中性条件下,TP表现出pH依赖的SOD和酶活动,有效地清理RONS.
- 通过消除细胞内RONS,TP保护细胞免受氧化应激诱导的损伤.
- 在DSS诱导的肠炎小鼠中,胃内给药TP显著抑制了前炎性细胞因子表达.
- TP恢复了氧化还原平衡,并促进了肠道修复,没有明显的不良影响.
结论:
- TePt纳米棒是治疗慢性肠炎的有效抗氧化纳米酶.
- 通过减少炎症和促进组织修复,TP显示出显著的治疗潜力.
- 这项研究为设计纳米酶用于炎症性肠病治疗提供了新的见解.
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