本文研究了联合应用IL-2和IL-7在体外T细胞培养系统中对小鼠T细胞生长及功能的调节作用。结果表明:单独使用IL-2或IL-7均能增强T细胞对ConA或特异性抗原刺激诱导的增殖反应,但联合使用IL-2和IL-7具有更加显著的协同刺激作用。C57BL/6小鼠抗FBL-3肿瘤特异性T细胞系在IL-2与IL-7联合培养系统中,不但T细胞数量明显增加,且能在保持特异性功能的同时,延长T细胞体外抗原刺激周期。此外,这一细胞因子的组合方案,可大大降低IL-2的应用剂量,避免大剂量IL-2临床应用时所产生的副作用。

The results of the current studies demonstrated that the combined use of IL - 2 and IL - 7 could augment the in vitro proliferative responses of tumor - specific T cell lines and clones to antigen stimulation, increasing stimulation induces 6 to 8 times greater than using either IL - 2 or IL - 7 alone. Antigen - driven T cells maintained in culture using this combined cytokine regimen can be induced to grow and maintained functional in large numbers and survive long-term in cultrue with each antigen restimulation cycle prolonged to six weeks. The IL-2 doses used in this combined cytokine regimen can be reduced 10 to 100 times that of cultures using IL-2 alone. Thus, the combined use of IL-2 plus IL-7 is effective for procuring large numbers of antigen - specific functional T cells in vitro.