外泌体介导的内皮细胞血管生成调控机制探讨

An Investigation into the Mechanisms of Exosome-Mediated Regulation of Angiogenesis in Endothelial Cells

摘要: 外泌体是一类由细胞分泌的细胞外囊泡，近年来在生物医学领域引起广泛关注，尤其是在血管生成和组织再生方面的潜力。本文旨在探讨外泌体介导的内皮细胞血管生成调控机制及其在牙髓血运重建中的应用。研究表明，外泌体通过携带生物活性分子如血管内皮生长因子(VEGF)等，能够显著促进内皮细胞的增殖、迁移和管状结构形成，进而加强血管生成。此外，外泌体在牙髓再生中的重要性也逐渐被认识，其通过调节牙髓干细胞与周围微环境的相互作用，促进血管化和神经再生，从而为牙髓组织的功能恢复提供支持。国内外相关研究逐渐增多，涉及外泌体的来源、特性以及在牙周、牙髓等组织再生中的具体作用，进一步证实外泌体在促进血管生成和组织修复中的关键角色。综上所述，外泌体作为一种新型的生物治疗工具，展现出良好的临床应用前景，有望为牙髓再生及其他组织损伤的修复提供新的解决方案。

Abstract: Exosomes are a class of extracellular vesicles secreted by cells. In recent years, they have attracted extensive attention in the biomedical field, particularly for their potential in angiogenesis and tissue regeneration. This article aims to explore the regulatory mechanism of exosome-mediated angiogenesis in endothelial cells and its application in dental pulp revascularization. Studies have shown that exosomes, by carrying bioactive molecules such as vascular endothelial growth factor (VEGF), can significantly promote the proliferation, migration, and tube-like structure formation of endothelial cells, thereby enhancing angiogenesis. Furthermore, the importance of exosomes in dental pulp regeneration is gradually being recognized. By modulating the interaction between dental pulp stem cells and the surrounding microenvironment, exosomes facilitate vascularization and neural regeneration, thus supporting the functional recovery of dental pulp tissue. Related research has been increasing both domestically and internationally, covering the sources, characteristics, and specific roles of exosomes in periodontal and pulpal tissue regeneration, further confirming their key role in promoting angiogenesis and tissue repair. In summary, as a novel biotherapeutic tool, exosomes demonstrate promising clinical application prospects and are expected to provide new solutions for dental pulp regeneration and the repair of other tissue injuries.