抑制加勒-3表达可能会在细胞通过过程中保持介质干细胞的免疫调节功能
Minghui Wang1, Yan Jiang1, Jiangbo Wan1
1Department of Hematology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 200090 Shanghai, China.
Frontiers in bioscience (Landmark edition)
|September 8, 2025
概括
介酶干细胞 (MSCs) 由于增加Gal-3.的传递而失去治疗效果. 一种Gal-3抑制剂,TD139,拯救了MSC的免疫调节功能,为移植对宿主疾病治疗提供了一种新的策略.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 再生医学是一种再生医学.
背景情况:
- 介质细胞干细胞 (MSC) 对于治疗血造细胞干细胞移植后的急性移植对宿主疾病 (aGVHD) 是至关重要的.
- 广泛的体外扩展是MSC临床使用所必需的,但长期通过会降低它们的治疗疗效.
- 在传递过程中MSC免疫调节功能障碍背后的机制在很大程度上是未知的.
研究的目的:
- 研究通过MSCs的免疫调节功能障碍的机制.
- 探索干预策略,以恢复晚期MSCs的治疗潜力.
- 评估加勒-3 (Gal-3) 在MSC功能障碍中的作用及其作为治疗点的潜力.
主要方法:
- 在小鼠aGVHD模型中,早期传递 (P6) 和晚期传递 (P12) MSC之间的治疗效果的比较.
- 分析不同通道的MSC中的Gal-3表达及其对巨细胞两极分化的影响.
- 对Gal-3抑制剂TD139评估其恢复MSC免疫调节功能的能力.
主要成果:
- 晚期通过的MSCs (P12) 与早期通过的MSCs (P6) 相比,在治疗aGVHD方面显著降低了疗效.
- 在P12MSC中,Gal-3表达显著上调,抑制了抗炎M2型巨细胞两极分化.
- TD139治疗剂量依赖性抑制了Gal-3的表达,并恢复了MSCs的免疫调节功能.
结论:
- 加尔-3的上调有助于MSC免疫调节能力在传递过程中下降.
- TD139有效地拯救了晚期MSCs的免疫调节功能障碍.
- TD139代表了一种有希望的策略,以提高MSCs在GVHD治疗中的治疗潜力.
更多相关视频
相关概念视频
Mesenchymal Stem Cells
5.5K
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...
5.5K
Regulation of Hematopoietic Stem Cells
4.0K
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...
4.0K
Multipotency of Hematopoietic Stem Cells
3.8K
The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
3.8K


