含有梅利丁的固体脂质纳米颗粒通过NOVA2-TGF-β/Smads信号通路抑制肺纤维化
Xinghua Yuan1, Tongling Zhang2, Zhidan Liu3
1Department of Respiratory and Critical Care Medicine, Shanghai Baoshan District Hospital of Integrated Traditional Chinese and Western Medicine (Baoshan Hospital Affiliated to Shanghai University of Traditional Chinese Medicine), Shanghai 201999, China.
International immunopharmacology
|December 19, 2025
概括
含有梅利丁的固体脂质纳米颗粒 (MLT@NPs) 在肺纤维化模型中有效降低了炎症和纤维化. 这种纳米粒子配方增强了梅利丁的含量.
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:
- 梅利丁 (MLT) 是一种具有抗炎和抗纤维性质的.
- MLT的临床应用受到副作用的限制.
- 固体脂质纳米颗粒 (SLN) 为疏水药物提供有针对性的输送和持续释放.
研究的目的:
- 评估MLT装载固体脂质纳米颗粒 (MLT@NP) 在治疗肺纤维化中的疗效.
- 研究MLT@NP在抑制纤维化的潜在机制.
主要方法:
- MLT@NPs被合成并以粒子大小,泽塔潜力,封装效率和药物负载为特征.
- 在小鼠和用脂聚糖治疗的L929细胞中评估了白胺诱导的肺纤维化.
- 使用ELISA,生物化学测试和西式斑点测试,量化了亲炎和亲纤维性标记物.
- 基因表达分析使用高通量mRNA测序,RT-qPCR和西式涂抹进行.
主要成果:
- MLT@NPs表现出最佳的物理化学特性 (大小:263.3 nm,泽塔电位:29.4 mV,EE:39.65%,DL:16.80%).
- 在肺组织和BALF中,MLT@NPs显著降低了促炎性 (IL-6,TNF-α) 和促纤维性因素 (TGF-β1,PDGF,CTGF,氧,α-SMA,p-Smad2/3).
- MLT@NPs抑制了L929细胞中的细胞活力,迁移和纤维化,涉及Nova2和TGF-β1-Smad2/3通路.
结论:
- 与免费的MLT相比,MLT@NPs的治疗效率有所提高.
- MLT@NPs代表了一种有前途的基于纳米粒子的药物输送系统,用于治疗肺纤维化,潜在的异常性肺纤维化.
相关概念视频
01:16TGF - β Signaling Pathway
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
01:28Nitric Oxide Signaling Pathway
Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure to...
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...