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抗原致敏树突状细胞诱导CIK对胃癌细胞杀伤作用的研究 被引量:5

Cytotoxity of Cytokine Induced Killer with Dendritic Cell Pulsed with Tumor Antigen in Gastric Cancer Cells
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摘要 [目的]探讨抗原致敏的树突状细胞(DC)诱导CIK(cytok ineinduced killer)的杀伤作用。[方法]联合应用粒/巨细胞集落刺激因子(GM-CSF)及白介素-4(IL-4)从外周血单个核细胞中培养DC,用人胃癌细胞SGC提取肿瘤抗原致敏DC,流式细胞仪检测致敏前后DC表型的变化,用人胃癌细胞SGC提取肿瘤抗原致敏DC诱导CIK,用MTT法检测淋巴细胞的增殖及原致敏DC诱导CIK对SGC的杀伤效应。[结果]①利用GM-CSF及IL-4可从外周血单个核细胞中获取DC,肿瘤抗原可促进DC的成熟,肿瘤抗原致敏可促进DC成熟,细胞表面分子HLA-DR、CD83、CD86升高,CD14下降。②混合淋巴细胞反应提示成熟的DC可促进CIK细胞增殖。③SGC肿瘤抗原致敏DC诱导CIK对胃癌细胞SGC有特异性的杀伤作用,随着效靶比的升高,杀伤效应随之增强。[结论]抗原致敏的DC可通过诱导特异性CIK细胞及促进CIK细胞增殖两方面显著提高CIK细胞的杀瘤效应。
出处 《中国肿瘤》 CAS 2006年第6期412-414,共3页 China Cancer
基金 福建省自然科学基金资助项目(C0410043) 福建省自然科学基金资助项目(F00019)
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