商陆素-脾细胞条件培养基对小鼠骨髓造血祖细胞作用的研究

目的 :研究商陆素 -脾细胞条件培养基 (PWM-SCM)对小白鼠骨髓造血祖细胞的作用。方法 :用 micro-ELISA方法测定 PWM-SCM中 IL-2、IL-3、IL-4和 IL-6的含量 ,在 CFU-GM和CFU-E培养体系中加入 PWM-SCM,观察其对造血祖细胞的作用。结果 :PWM-SCM中 4种细胞因子的含量 :IL -2为 72 .5± 1 .1 pg/ml,IL -3为 43 3 .3± 1 1 .6pg/ml,IL -4为 2 8.9± 0 .4pg/ml,IL -6为 1 43 .3 pg/ml,其测定值均高于对照组 RPMI-1 64 0完全培养基中测定的含量 (P<0 .0 5～ 0 .0 1 )。骨髓造血祖细胞培养显示 ,PWM-SCM对 CFU-GM无影响 ,但 CFU-E的集落数由 6.2± 1 .4增加到 3 4.0± 2 .5 ,有非常显著性差异 (P<0 .0 0 1 )。结论 :PWM-SCM中含有多种细胞因子 ,对小白鼠骨髓造血祖细胞有集落刺激活性 ,对 CFU-E的形成有协同促进作用。

Preliminary Study on Bystander Effects and Associated Mechanism Mediated through Irradiated Conditioned Medium

The bystander effects and associated mechanism have been studied by irradiated conditioned medium (ICM) method. ICR strain mice were used to detect the activation of natural killer (NK) cells to tumor cell Yac-I which cultured with ICM. And the effects of ICM on splenic lymphocyte proliferation were observed. Yac-I