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目前，恶性肿瘤的治疗手段主要包括手术、化疗和放疗，但上述手段无法从根本上解决癌细胞的清除问题。新兴的树突状细胞-细胞因子诱导的杀伤（ DC-CIK）细胞生物疗法是继放、化疗后的一种全新治疗方法，具有抗瘤谱广、适应证多、有效率高及不良反应小等优点，其是通过对患者进行免疫细胞的抽取，并在体外进行培养、扩增、诱导，使免疫细胞的数量和抗肿瘤活性大大增加，然后回输到患者体内进行活化增殖，而起到抑制肿瘤复发和转移的作用，同时保护自身的健康细胞不受侵害，大大提高了大肠癌患者化疗后的生活质量。“,”At present,the main treatments of malignant tumors include surgery,chemotherapy and radio-therapy,which cannot completely solve the problem of cancer cells clearance.Emerging dendritic-cells-cyto-kine induced killer ( DC-CIK) cell biological therapy is a new treatment following radiotherapy and chemo-therapy after,with the advantages of wide antitumor spectrum,indication scope,high efficacy and less adverse reactions.It is to extact the immune cells of the patients to culture,proliferate and induce in vitro,to increase the number and anti-tumor activity of immune cells,then transfuse the cells back into the patient for activation and proliferation, to inhibit tumor recurrence and metastasis, which can protect theself-healthy cells from destroy,sothat the quality of life of patients with colorectal cancer after chemotherapy can be greatly increased .