【摘要】 巨噬细胞主要分为促炎M1型和抗炎M2型两种亚群,在早期急性炎症反应过程中,二者分泌的血管内皮生长因子、碱性成纤维细胞生长因子、转化生长因子-β1、白细胞介素、血小板衍生生长因子和基质金属蛋白酶等皆可促进缺损处的血管生成与结构重建。二者间相互协调,而非简单地促炎和抗炎间的拮抗作用促进血管再生并提高组织再生的效率。在组织工程领域,支架材料、间质干细胞(MSC)以及多种细胞因子可调节巨噬细胞表型转换,使其在不同阶段分泌的细胞因子和促血管生长因子促进血管再生。MSC分泌的多种细胞因子可改善造血微环境,促进其移植后的造血功能重建。更多还原

【Abstract】 Macrophages are mainly divided into two subtypes: pro-inflammatory M1 and anti-inflammatory M2. During early acute inflammatory reaction, macrophages can secrete vascular endothelial growth factor, basic fibroblast growth factor, transforming growth factor-β1, interleukin, platelet-derived growth factor, matrix metalloproteinase, and numerous other substances. The seproteins can promote angiogenesis and structural reconstruction of defects. Macrophages coordinate with each other to promote the regeneration of blood vesselsand improve the efficiency of tissue regeneration. This coordination is not a simple antagonistic effect between anti-inflammatory and pro-inflammatory effects. In tissue engineering, scaffold, mesenchymal stem cells(MSC), and several types of cytokines can regulate macrophage phenotype conversion, which can promote angiogenesis by secreting cytokines and angiogenic growth factors at variousstages. MSC can secrete various cytokines to improve the hematopoietic microenvironment and promote the reconstruction of hematopoietic function after transplantation.更多还原