具有两种典型的3D几何形状的可注射生物材料对宏细胞调制的时空空间协同效应,用于增强组织再生
Liangwei Si1, Sijia Liu1, Chen Gao1
1State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory For Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.
Advanced healthcare materials
|February 6, 2026
概括
使用球形微球 (MSs) 和棒形微纤维 (MFs) 的可注射生物材料通过调节巨细胞功能来增强组织再生. MSs招募巨细胞,而MFs促进M2极化和原沉积,以改善愈合.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 免疫学 免疫学 免疫学
背景情况:
- 具有免疫调节性质的可注射生物材料对于组织再生至关重要.
- 材料几何学会影响巨细胞的行为,使免疫指导性支架的设计成为可能.
- 巨细胞的表型调节是控制再生过程的关键.
研究的目的:
- 开发和评估具有明显3D几何形状 (微球和微纤维) 的可注射生物材料,用于调节巨细胞功能.
- 研究微球 (MSs) 与微纤维 (MFs) 的不同比例对巨细胞招募和两极分化的协同效应.
- 评估这些免疫调节生物材料对组织再生的影响.
主要方法:
- 使用球形微球 (MSs) 和棒形短微纤维 (MFs) 制造可注射生物材料复合材料.
- 在体外和体内对巨细胞招募,表型偏向 (M1/M2) 和自的评估.
- 评估组织再生,包括对不同MS:MF比率的反应中的原沉积和异物反应.
主要成果:
- 不同的MSs与MF的比例显著影响了巨细胞的招募和M2极化.
- 高比例的MF与潜在的痕形成有关.
- MSs迅速诱导异体反应和巨细胞透,其次是MFs促进M2极化和原沉积,证明了时空协同作用.
结论:
- 球形微球和棒形微纤维在组织再生方面表现出协同的免疫调节作用.
- 开发的可注射生物材料复合材料有效地刺激巨细胞的两极分化,使其转向有利于再生的M2表型.
- 这种方法为设计先进的可注射生物材料提供了一个有希望的策略,用于增强组织修复.
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