口服炸弹效应纳米疗法通过协调的抗炎和促进解决策略来缓解性结肠炎
Mei Yang1,2, Yuanyuan Zhu3, Xiaodan Wei1,2
1Department of Thoracic Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China. meiyang@xjtu.edu.cn.
Biomaterials science
|September 12, 2024
概括
这项研究开发了结合抗炎和促溶解疗法的新型纳米颗粒,用于治疗性结肠炎 (UC). 组合疗法有效地减少了UC模型小鼠的炎症和改善症状.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 免疫学 免疫学 免疫学
背景情况:
- 性结肠炎 (UC) 是一种慢性炎症疾病,治疗疗效有限.
- 目前的UC治疗专注于抑制炎症,忽视了关键的炎症解决途径.
- 一个结合的抗炎和支持解决策略为UC提供了一个有希望的治疗途径.
研究的目的:
- 开发和评估新的纳米颗粒用于性结肠炎的联合抗炎和促溶解疗法.
- 评估这些纳米颗粒的目标传递,生物相容性和生物安全性.
- 研究双重作用纳米颗粒在减少UC炎症和促进UC溶解方面的治疗疗效.
主要方法:
- 纳米颗粒被设计为具有二氧化碳释放能力的CD98 siRNA (siCD98) 和Annexin A1-模拟 (Ac2-26) 的共载.
- 氨酸 (HA) 表面修饰用于针对性地向炎症部位输送.
- 在体外和体内研究中评估了纳米粒子生物相容性,生物安全性,抗炎和促溶解作用,包括细胞因子表达,ROS产生和巨细胞分化.
主要成果:
- 纳米粒子有效地加载siCD98和Ac2-26,释放二氧化碳用于内/溶酶体逃逸和细胞质药物递送.
- 经HA修饰的纳米颗粒证明有效向炎症组织和细胞,具有良好的生物相容性和生物安全性.
- 结合siCD98和Ac2-26纳米颗粒显示出显著的抗炎和促溶解作用,减少ROS,促炎细胞因子 (TNF-α,IL-1β),CD98基因表达,并促进M1到M2巨细胞的两极分化.
- 在UC小鼠中,口服封装纳米粒子减轻了症状,恢复了肠道屏障功能,并改善了治疗结果.
结论:
- 开发的纳米颗粒通过结合抗炎和促进溶解的干预措施,为性结肠炎提供了一种新的双重作用治疗方法.
- 这一策略显示了通过有针对性的治疗和协同治疗效应来改善UC治疗结果的巨大潜力.
- 这项研究为治疗炎症性肠道疾病的组合疗法提供了新的范式.
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