抗CD49d单克隆抗体与rhG-CSF动员的外周血干细胞移植重建小鼠造血功能的比较研究

为比较研究抗CD49d单克隆抗体和重组人粒细胞集落刺激因子 (rhG CSF)动员的外周血干细胞对造血功能重建的影响 ,经放、化疗预处理的BALB/c小鼠分别接受经生理盐水(对照组 )、rhG CSF(实验 1组 )、抗CD49d单克隆抗体 (实验 2组 )动员的同系小鼠的外周血干细胞移植 ,观察受体小鼠的 4周存活率、外周血白细胞 (WBC)、骨髓有核细胞 (BMNC)、粒细胞巨噬细胞集落形成单位 (CFU GM)及脾集落形成单位 (CFU S)等指标。结果显示 ,实验 1、2组小鼠的 4周存活率、WBC、BMNC ,CFU GM和CFU S均明显高于对照组(P <0 0 1) ,实验 1、2组之间比较差异无显著性意义 (P >0 0 5 )。提示抗CD49d单克隆抗体或rhG CSF均能动员小鼠外周血干细胞 ,并能重建同系小鼠的造血功能。

COMPARATIVE STUDY ON HEMATOPOIETIC RECONSTRUCTION EFFECTS OF PERIPHERAL BLOOD STEM CELLS MOBILIZED BY ANTI-CD49d MONOCLONAL ANTIBODY AND rhG-CSF IN MICE

The present experiment was to study the hematopoietic reconstruction effects of peripheral blood stem cell (PBSC) mobilized by anti-CD49d monoclonal antibody (McAb) and recombinant human granulocyte colony-stimulating factor(rhG-CSF) in mice. PBSCs from NS-treated mice (control group), rhG-CSF-mobilized mice (experimental group1), and anti-CD49d McAb-mobilized mice (experimental group 2), The changes in respectively, were transplanted to BALB/c mice pre-conditioned with high-dose chemotherapy and total body irradiation white blood cell (WBC) count, four-weeks survival rate, bone marrow nuclear cells (BMNC), granulocyte-macrophage colony-forming units (CFU-GM), and colony-forming unit-spleen (CFU-S) were observed. The results showed that survival rate, WBC, BMNC, CFU-GM, and CFU-S counts were significantly higher in experimental groups 1 and 2 than those of the control group(P<0.01). The results suggested that PBSCs mobilized by anti-CD49d McAb and rhG-CSF could effectively reconstruct hematopoiesis in mice.