精确调节M2亚型巨细胞用于纤维化解决脏纤维化
Lihua Luo1,2, Sijie Wang1, Yilong Hu1
1College of Pharmaceutical Sciences, Zhejiang University, 886 Yuhangtang Road, Hangzhou 310058, Zhejiang, China.
ACS nano
|November 10, 2023
概括
巨细胞在纤维化中起着关键作用. 向细胞内膜网膜应激和使用葡萄糖皮质类药物可以转移M2巨细胞以促进组织修复和解决纤维化.
科学领域:
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 细胞生物学 细胞生物学
背景情况:
- 巨细胞在病病原和纤维化中至关重要.
- M2型巨细胞在炎症和修复方面具有双重作用,M2a和M2c亚型表现出不同的功能.
- M2a巨细胞可以通过巨细胞到肌纤维细胞过渡 (MMT) 驱动纤维化,而M2c巨细胞促进修复.
研究的目的:
- 为了研究纤维化中M2巨分化的机制.
- 确定转化增长因子-β (TGF-β) 在M2a和M2c极化中的信号强度的作用.
- 开发一种有针对性的纳米技术方法来调节巨细胞极化,用于纤维化治疗.
主要方法:
- 在纤维化发育中确认M2a衍生MMT细胞.
- 在差异M2a/M2c极化中分析TGF-β信号强度.
- 针对性纳米技术的应用,用于同时提供内细胞网膜应激抑制剂 (ERS) 抑制剂 (Ceapin 7) 和德克萨米他.
- 在巨细胞中调节ATF6/TGF-β/Smad3信号轴.
主要成果:
- 过度的TGF-β刺激会促进M2a转变为MMT,从而导致纤维化.
- 适度的TGF-β刺激有利于M2c两极分化,促进组织修复.
- 有针对性的纳米技术有效调节了对M2c表型的巨细胞两极分化.
- 结合疗法抑制了MMT过度的两极分化,并促进了纤维化解决.
结论:
- 在纤维化中,TGF-β信号强度是M2巨分极的关键决定因素.
- 有针对性的ESR抑制剂和葡萄皮质激素的同时递送提供了一个有前途的治疗策略.
- 这种方法重新校准了巨细胞的表型,抑制纤维化并增强脏疾病中的组织修复.
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