Masucci G, Wersäll P, Ragnhammar P, Mellstedt H
Department of Oncology (Radiumhemmet), Karolinska Hospital, Stockholm, Sweden.
Cancer Immunol Immunother. 1989;29(4):288-92. doi: 10.1007/BF00199217.
Human peripheral blood mononuclear cells (lymphocytes and monocytes) were preincubated for 0-24 h with human recombinant granulocyte-monocyte-colony-stimulating factor (GM-CSF) and used as effector cells in an 18 h antibody-dependent cellular cytotoxicity (ADCC) assay with SW948 (a human colorectal carcinoma cell line) as target cells and mAb 17-1A. A significant increase in the lytic capability was noted after 0.5-2 h of preactivation while longer preincubation times did not significantly increase the lytic potential. GM-CSF at 0.01 microgram/ml induced the best tumor cell lysis while higher concentrations were inhibitory. GM-CSF pretreatment induced a statistically significant increase in the lytic capacity of both monocytes and lymphocytes in ADCC as well as in the spontaneous cytotoxicity.
人外周血单核细胞(淋巴细胞和单核细胞)与人重组粒细胞-单核细胞集落刺激因子(GM-CSF)预孵育0至24小时,然后用作效应细胞,以SW948(一种人结肠癌细胞系)为靶细胞,mAb 17-1A进行18小时的抗体依赖性细胞毒性(ADCC)测定。预激活0.5至2小时后,裂解能力显著增加,而更长的预孵育时间并未显著增加裂解潜力。0.01微克/毫升的GM-CSF诱导最佳的肿瘤细胞裂解,而更高浓度则具有抑制作用。GM-CSF预处理在ADCC以及自发细胞毒性中均诱导单核细胞和淋巴细胞的裂解能力出现统计学上的显著增加。