作为巨细胞极性转换器的现场细胞微球加速了骨关节炎治疗
Yong Wang1,2, Chaoyu Pu1, Zeyu Han2
1Department of Orthopedics, Laboratory of Biological Tissue Engineering and Digital Medicine, Affiliated Hospital of North Sichuan Medical College, No. 1 The South of Maoyuan Road, Nanchong, Sichuan, 637000, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|January 9, 2025
概括
这项研究引入了一种新型的水凝微球 (H-C@IL),可以增强巨细胞的细胞分裂,促进抗炎反应和软骨再生,用于骨关节炎 (OA) 治疗.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
背景情况:
- 骨关节炎 (OA) 的特点是炎症失衡,其中亲炎性巨细胞有助于疾病的进展.
- 增强细胞衰变,即清除亡细胞的过程,可以逆转巨细胞的亲炎症状态并恢复免疫恒常性.
研究的目的:
- 开发一个 in situ 细胞化水凝微球 (H-C@IL) 用于骨关节炎治疗.
- 为了研究H-C@IL促进血细胞分裂,M2巨细胞极化和软骨再生的机制.
主要方法:
- 使用微流体技术制备H-C@IL,将免疫体 (IL) 纳入CCL19修饰的HAMA微球中.
- 在实验室中评估巨细胞的招募,M1亡诱导,细胞增强和M2极化.
- 在OA模型中使用行为,成像和组织学分析进行体内评估.
主要成果:
- H-C@IL 专门招募了 M0 和 M1 巨细胞,诱导了 M1 细胞灭绝,并增强了血细胞增生.
- 在体内研究表明,H-C@IL有效地促进了M2巨细胞两极分化,减少了炎症,并刺激了软骨再生.
- 机理学研究表明,H-C@IL激活了PROS1和TIMD4以进行血细胞分裂,以及M2极化中的PQLC2-Arg-Rac1和Pbx1/IL-10通路.
结论:
- H-C@IL有效地促进M0巨细胞的in-situ细胞分裂,并促进M2极化.
- 这种方法可以恢复炎症平衡,促进软骨再生,为OA提供全面的治疗策略.
相关概念视频
Phagocytosis of Apoptotic Cells
3.7K
Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or immature dendritic cells. Non-professional phagocytes such as epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes.
Normal cells contain receptors that prevent them from being recognized...
Normal cells contain receptors that prevent them from being recognized...
3.7K
Osteoclasts in Bone Remodeling
2.8K
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
2.8K


