CpG ODN活化外周血单个核细胞对淋巴瘤HUT-78细胞杀伤作用的研究

目的 探讨CpG寡聚脱氧核苷酸(CpG ODN)在肿瘤免疫治疗中的作用.方法 将CpG ODN刺激体外培养的人外周血单个核细胞(PBMC),ELISA法检测其分泌细胞因子白细胞介素-12(IL-12)、干扰素-γ(INF-γ)的表达, MTT法检测CpG ODN作用后的PBMC对淋巴瘤细胞株HUT-78细胞杀伤活性.结果 与对照组相比,经CpG ODN作用后的PBMC对HUT-78细胞杀伤活性显著提高(P＜0.05),同时CpG ODN能明显促进PBMC分泌细胞因子IL-12、INF-γ(P＜0.05).结论 CpG ODN可增强PBMC介导的抗淋巴瘤细胞的作用,其杀伤活性与分泌细胞因子有关. Abstract： Objective To study the immunotherapy role of CpG ODN(CpGoligodeoxynucleotide) on tumor.Methods After treated with synthetic CpG ODN for 48 hours, the inhibiting effect of PBMC on HUT-78 cells were detected by MTT method.The secretions of TNF-γ and IL-12 from PBMC determined using ELISA method.Results The PBMC treated with CpG ODN enhanced their antitumor effect on HUT-78 cells and increased the secretion levels of TNF-γ and IL-12.Conclusions CpG ODN increases the cytotoxicity of PBMC on HUT-78 cells in vitro, as well as facilitates the IL-12 and TNF-γ secretion.

Study of killing activity of PBMC stimulated by CpG ODN on HUT-78 cells

CpG ODN PBMC Immunotherapy