细胞因子诱导杀伤（CIK）细胞的大容量扩增与杀伤活性观察

建立大容量细胞因子诱导杀伤(Cytokine-inducedkiller,CIK)细胞培养方法，观察CIK细胞回输后对患者细胞免疫功能的影响。采用1000ml培养袋大量扩增患者自体CIK细胞，用MTT法检测CIK细胞杀伤活性，比较回输前后患者外周血单个核细胞(PBMNC)对靶细胞的杀伤活性及其毒副作用。结果表明大容量培养法使自体CIK细胞扩增总量达1.6×1010以上，回输CIK细胞使患者PBMNC的杀伤活性明显增加，未出现毒副作用。因此CIK细胞大容量扩增方法在治疗肿瘤微小残留病变上有着良好的临床应用前景。

Large-Capacity Expanded Cytoline-induced KillerCells and Its Cytotoxic Activity

This study was conducted to establish the large-capacity culture methd of cytokine-induced killer (CIK) cells for clinical therapy and assess its effect on the fuction of cell-mediated immunity following autologous CIK cells reinfusion. Autologus CIK cells were expanded in 1000 ml culture-bag and reinfused back. The MTT method was used to test the cytotoxic activity of CIK cells before and after reinfusion. The results showed that the total amount of autologous CIK cells reinfusion exceeded 1.6 x 10(10) with the use of the culture method of large-capacity. The PBMNC from patients treated by CIK cells showed significant increase in cytotoxic activity, no side effects were observed, and therefore the large-capacity culture method of CIK cells is a simle and safe therapy for treating the minimum residue of diseases.