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工程仿生纳米细胞通过清理ROS和重编程巨细胞来向毒症相关的急性肺损伤中的炎症.

Quan Li1, Haijun Sun1, Xinjing Zhang2

  • 1Intensive Care Unit, Jiangsu Province (Suqian) Hospital, Suqian, Jiangsu, 223899, People's Republic of China.

International journal of nanomedicine
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概括

一种新的仿生纳米药物,MM@PT@CA,通过向炎症和氧化应激,有效治疗败血症相关的急性肺损伤 (SALI). 这种创新的治疗方法可以对抗感染,并显示出SALI有前途的治疗潜力.

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在ROS清理垃圾.肺部急性肺损伤是什么生物仿真纳米微小细胞卡尔诺斯酸是什么 卡尔诺斯酸巨细胞的重编程

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科学领域:

  • 生物医学工程 生物医学工程
  • 纳米技术纳米技术
  • 药理学 药理学是指药理学的学科.

背景情况:

  • 败血症相关的急性肺损伤 (SALI) 由于氧化应激和炎症导致的死亡率很高.
  • 目前对SALI的治疗方法有限.
  • 一种新的仿生纳米药物,MM@PT@CA,是使用化酸 (CA) 封装在共聚物 (PT) 中,并被M2巨细胞膜 (MM) 覆盖而开发出来的.

研究的目的:

  • 开发和评估一种新的仿生纳米药物,用于治疗与败血症相关的急性肺损伤 (SALI).
  • 评估纳米药物的ROS反应性药物释放,抗氧化,抗菌,抗炎和免疫调节性质.
  • 在SALI的小鼠模型中评估纳米药物的治疗疗效.

主要方法:

  • 合成PT共聚物和封装肉酸 (CA) 形成PT@CA微粒.
  • 通过联合挤出,用M2巨细胞膜 (MM) 覆盖PT@CA微粒,以产生MM@PT@CA.
  • 在小鼠SALI模型中对ROS清除,抗氧化,抗菌,抗炎作用,M2巨分化和治疗功效的体外和体内评估.

主要成果:

  • MM@PT@CA表现出显著的抗氧化活性,清除DPPH和ABTS基,并抑制细菌生长.
  • 实验室内研究表明,细胞吸收效率高,在炎症部位积累,生物相容性良好,在氧化应激下恢复细胞活力,并降低促炎因素的调节.
  • 在体内,MM@PT@CA治疗减少了细胞亡,并通过调节巨细胞极化和抑制细胞因子风暴,有效地阻止了SALI的进展.

结论:

  • 开发的生物纳米细胞,MM@PT@CA,在向炎症,抗击感染和减少氧化应激方面表现出多功能功效.
  • 在临床前模型中,MM@PT@CA有效地减轻了败血症相关的急性肺损伤 (SALI).
  • 这种纳米药物在治疗SALI方面具有显著的治疗潜力.