黄芪甲甙对大鼠骨髓间充质干细胞多种造血相关因子表达的影响

背景:黄芪甲甙是中药黄芪的主要有效成分,能促进骨髓间充质干细胞的增殖及诱导分化,但涉及具体作用机制的报道较少.目的:探讨中药黄芪甲甙对大鼠骨髓间充质干细胞造血相关因子表达的影响.方法:全骨髓贴壁法和单克隆培养法体外分离培养大鼠骨髓间充质干细胞,接种于96孔板中,加药组分别用25,50,100,200 g/L黄芪甲甙100 μL孵育72 h,对照组仅加等量DMEM-LG培养液.间接免疫荧光法鉴定其生物学特性,MTT法检测黄芪甲甙对骨髓间充质干细胞增殖的影响,RT-PCR法检测黄芪甲甙干预后骨髓间充质干细胞造血相关因子的表达.结果与结论:第3代骨髓间充质于细胞高表达CD44,低表达造血细胞表面标志CD45.与对照组比较,黄芪甲甙呈时间及剂量依赖性促进骨髓间充质干细胞的增殖,以200g/L黄芪甲甙干预72 h促增殖作用最强(P＜0.05).与对照组比较,加药组骨髓间充质干细胞SCF的表达显著增加(P＜0.01),TPO,GM-CSF,TGF-β1等细胞因子的表达无明显变化(P＞0.05),不表达自细胞介索3.黄芪甲甙可促进骨髓间充质干细胞的体外增殖,可能与其诱导骨髓间充质干细胞分泌SCF有关.

Effect of Astragaloside IV on hematopoietic growth factor expression in rat bone marrow mesenchymal stem cells

BACKGROUND: Astragaloside IV is a major component of Huangqi, promoting proliferation and differentiation of bone marrow mesenchymal stem cells; however, the mechanism has been less reported yet. OBJECTIVE: To explore the effect of Astragaloside IV on expression of multiple hematopoietic growth factors in bone marrow mesenchymal stem cells. METHODS: Bone marrow mesenchymal stem cells were isolated from adult Wistar rats by using the method of adhesive culture and clone, and they were then plated on 96-well ...