由IL-1β刺激的骨髓干细胞衍生的外体通过调节HMGB1/AKT通路和M2巨细胞极化减轻败血症
Yang Li1, Zifa Sun1, Yuanyuan Li1
1Department of Infectious Diseases, Anhui Provincial Children's Hospital, Hefei, 230022, China.
Current molecular medicine
|January 4, 2024
概括
介质素-1β原始化介质干细胞外体 (IL-1β-BMSC/exos) 显示出对败血症的治疗潜力. 这些外体细胞通过向HMGB1/AKT通路并促进M2巨细胞两极分化来保护内皮细胞并减轻败血症.
科学领域:
- 再生医学是一种再生医学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 败血症仍然是一个关键的威胁,需要新的治疗策略.
- 介质干细胞衍生的外体细胞 (MSCs) 在治疗各种疾病方面表现有前途.
- 这项研究调查了来自IL-1β受条件的骨髓衍生的MSC (BMSC) 毒症中的外体的治疗潜力.
研究的目的:
- 探索IL-1β预先条件的BMSC衍生的外体细胞 (IL-1β-BMSC/exos) 对败血症的治疗作用.
- 阐明IL-1β-BMSC/exos在败血症治疗中的潜在机制.
主要方法:
- 从BMSC中分离出来的外体被预先处理了IL-1β或没有IL-1β.
- 在体外败血症模型中使用人静脉内皮细胞 (HUVECs),用脂多糖 (LPS) 治疗.
- 在体内败血症模型中使用了结和穿孔 (CLP) 方法.
主要成果:
- IL-1β-BMSC/exos显著改善了HUVEC的扩散,迁移和管道形成.
- 在HUVEC中,IL-1β-BMSC/exos抵消了LPS诱导的HMGB1表达和AKT酸化.
- 在体内,IL-1β-BMSC/exos促进了M2巨细胞的两极分化,减少了炎症性化学基因,并减轻了CLP诱导的败血症.
结论:
- IL-1β-BMSC/exos显示出对败血症的保护作用.
- 治疗机制包括调节HMGB1/AKT通路.
- 此外,IL-1β-BMSC/exos还会触发M2巨细胞的两极分化,从而有助于减轻败血症.
更多相关视频
09:20Differentiation of Monocytes into Phenotypically Distinct Macrophages After Treatment with Human Cord Blood Stem Cell CB-SC-Derived Exosomes
Published on: November 12, 2020
5.8K
09:10Mesenchymal Stem Cell Regulation of Macrophage Phagocytosis; Quantitation and Imaging
Published on: July 16, 2021
3.2K
相关概念视频
Mesenchymal Stem Cells
4.7K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
4.7K
Regulation of Hematopoietic Stem Cells
3.2K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.2K
