【摘要】 背景与目的树突状细胞(DC)为基础的免疫治疗是肿瘤治疗的新领域,对部分恶性肿瘤有较好的疗效。本研究的目的是应用癌胚抗原(CEA)致敏的DC治疗晚期非小细胞肺癌(NSCLC),观察其临床应用方法、毒副反应和剂量效应。方法选择CEA高表达的肺癌患者,体外培养外周血单个核细胞来源的DC及CIK,CEA多肽于培养的第5天加入培养液以致敏未成熟DC。将DC和CIK细胞静脉回输患者,观察回输后的疗效和毒副反应。结果共22例晚期NSCLC患者接受了DC治疗,回输DC数量为2.5×106~9.6×107,平均5.03×106;回输CIK细胞数量为3.4×108~46×108。治疗后CD3、CD8、NK、IFN-γ明显升高(P<0.05)。全组1年生存率为68.2%(15/22)。主要毒副反应为发热和皮疹。结论DC生物免疫治疗具有较好的耐受性和安全性。更多还原

【Abstract】 Background and objective Dendritic cell (DC)-based immunotherapy is a new approach and effective for some malignant tumors. The aim of this study is to observe the efficacy and toxicity of immunotherapy with carcinoembryonic antigen (CEA) peptide-pulsed DCs in patients with refractory advanced lung cancer. Methods Lung cancer patients with high CEA expression were enrolled into this project. Autologous DCs were generated from patients’ plastic-adherent peripheral blood mononuclear cells and loaded with CEA 5 days later. Cytokine-induced killer cells (CIK) were cultured from non-adherent peripheral blood mononuclear cells. DCs and CIK were transfused to patients. Responses and toxicities were observed. Results A total of 22 patients with lung cancer received DCs immunotherapy. DCs doses were 2.5×10~6--9.6×10~7 (5.03×10~6). CIK doses were 3.4×10~8--46×10~8. CD3, CD8, NK and IFN-γ levels obviously increased after treatment (P<0.05). The 1-year survival rate was 68.2% (15/22). Main toxicities were fever and rash. Conclusion DCs-based immunotherapy is feasible and safe to patients with lung cancer.更多还原