在表面的巨细胞和BMSC之间通过CXCL化学基因介导的通信通过actin细胞骨架通路促进骨质生成
Yayun Zhang1,2, Jiemao Wei1, Xingbang Yu1
1Department of Orthopedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, 1095 Jiefang Avenue, Wuhan, Hubei, 430030, China.
Materials today. Bio
|October 20, 2023
概括
在表面上,M2类巨细胞和骨髓介质干细胞 (BMSC) 进行相互调节. 这种由特定的化学因子和生长因子驱动的相互作用促进了骨的整合和骨质分化.
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
- 细胞生物学 细胞生物学
背景情况:
- (Ti) 表面对于骨科植入物至关重要,但了解免疫微环境在骨整合中的作用是不完整的.
- 骨髓介质干细胞 (BMSCs) 是骨再生的关键,它们与Ti表面的免疫细胞的相互作用需要详细的描述.
研究的目的:
- 研究功能性细胞亚型及其在BMSC驱动的Ti表面骨整合中的协作作用.
- 为了阐明巨细胞和BMSCs在Ti表面上的动态交叉声,并确定关键的分子介质.
主要方法:
- 利用简化的共同培养系统研究细胞和BMSCs在Ti表面之间的时间相互作用.
- 分析了巨细胞和BMSC的分泌特征以及它们对细胞分化和信号通路的影响.
主要成果:
- 确定了分泌CXCL化学因子的M2类巨细胞,作为促进BMSC骨质分化和骨集成的关键调解者.
- 证明了相互调节的相互作用:M2型巨细胞分泌CXCL3,CXCL6和CXCL14,在BMSC上激活CXCR2/CCR1,而BMSC通过Sdc3.3分泌类蛋白 (PTN),通过Sdc3.3保持M2型巨细胞表型.
结论:
- 揭示了BMSC和巨细胞在Ti表面之间复杂的通信机制,这对于骨质整合至关重要.
- 突出了特定的分子事件 (CXCL/CXCR2/CCR1和PTN/Sdc3通路),用于植入物表面设计和骨质整合研究的细胞与细胞相互作用.
相关概念视频
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The Extracellular Matrix
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In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
Overview of Cell-Matrix Interactions
The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...


