不同来源间充质干细胞生物学特性差异

Biological characteristics of different sources of mesenchymal stem cells

背景:间充质干细胞在体内或体外特定的诱导条件下,可分化为软骨、肌肉、肌腱等。间充质干细胞进行的临床试验主要包括组织损伤修复,如骨、软骨、关节损伤的修复,心脏、肝脏、脊髓损伤和神经系统疾病的治疗。目的:比较各种来源的间充质干细胞的生物学特性。方法:检索1987到2015年Pub Med数据库和中国知网数据库收录的与间充质干细胞来源,间充质干细胞生物学特性相关的文献。从细胞表面标记物,增殖、分化、迁移能力,以及功能方面进行分析总结,探讨了各种来源的间充质干细胞的优缺点。结果与结论:不同来源的间充质干细胞的增殖潜力和表面标记物存在差异。不同组织来源的间充质干细胞免疫活性可能与间充质干细胞处于不同组织中的活化状态、种属差异、组织来源和培养条件的不同有关,从而导致不同源性间充干细胞免疫活性也不完全相同。深入认识影响不同组织来源间充质干细胞迁移的因素和机制,可以增强不同源性间充质干细胞靶向迁移的能力,提高其在创伤愈合、组织修复和再生中的治疗效率。

BACKGROUND：Mesenchymal stem cels, underin vivo orin vitro specific induction conditions, can differentiate into the cartilage, muscle, tendons and so on. Clinical trials concerning mesenchymal stem cels mainly include tissue repair （such as bone, cartilage and joint repair） and treatment of heart, liver, spinal cord injury and nervous system diseases. OBJECTIVE：To compare the biological characteristics of mesenchymal stem cels from different sources. METHODS： PubMed and CNKI databases were retrieved for articles related to sources of mesenchymal stem cels and biological characteristics of mesenchymal stem cels published from 1987 to 2015. The retrieved articles were summarized and analyzed in the folowing aspects： cel surface marker, proliferation, differentiation, migration, and function, so as to explore the merits and demerits of mesenchymal stem cels from different sources. RESULTS AND CONCLUSION：A difference in the proliferation ability and surface markers is found between different sources of mesenchymal stem cels. Immunological competence of mesenchymal stem cels from different sources may be correlated with their activation status, species differences, tissue sources and culture＆nbsp;conditions, resulting the immunological competence of mesenchymal stem cels from different sources is not exact the same. In-depth understanding of the factors and mechanisms by which influence the migration of mesenchymal stem cels from different sources can enhance the migration ability of different sources of mesenchymal stem cels, and increase their efficiency in wound healing, tissue repair and regeneration treatment.