摘要
肿瘤的免疫治疗作为恶性肿瘤综合治疗的重要组成部分,近年来受到了广泛的关注。树突状细胞(DC)是已知的功能最强的抗原呈递细胞,不仅能够激活自体的抗肿瘤免疫,同样能够提高异体免疫组织的抗肿瘤效应。为了探讨外周血来源的DC体外培养扩增和临床治疗的可行性和安全性,分析DC免疫治疗对于急性非淋巴细胞白血病自体骨髓移植患者长期生存的影响,利用CS3000Plus采集13例急性非淋巴细胞白血病自体骨髓移植后的病人的外周血单个核细胞,经过2周的体外培养后行DC免疫治疗,治疗后长期随访观察其无病生存时间。结果表明,无一例发现有与DC免疫治疗相关的严重不良反应;KaplanMeier生存分析结果为:DC组5年生存率为75.52%,非DC组5年生存率为45.71%,DC组在累计生存率上明显优于非DC组。结论:外周血来源的DC体外培养和临床治疗是安全可行的,急性非淋巴细胞白血病病人在自体骨髓移植术后应用DC免疫治疗延长了其无病生存时间,提高了长期生存率。
Immunotherapy of tumor is extensively attentioned as an important part of combined therapy of tumor in recent years.Dendritic cell(DC) is the most powerful antigen presenting cell (APC) by now which not only activates auto-immunity to attack tumor cells, but also does help to enhance antitumor effect for allogenic bodies. To explore the feasibility and safety of clinical therapy application of peripheral blood derived DC cultured ex vivo, and analyze the influence of DC-inducing-immunotherapy upon long-term survival of ANLL patients accepted autologous bone marrow transplantation, peripheral blood mononuclear cells (PBMNC) of 13 ANLL patients after autologous bone marrow transplantation were collected by using CS3000Plus. DC immunotherapy was administered after cultivation of PBMNC ex vivo for 2 weeks, desease-free survival time was observed after therapy for long time follow-up. The results showed that no any severe adverse event associated with DC therapy was observed, the survival analysis of Kaplan-Meier suggested that five year survival rate was 75.52% in DC group while 45.71% in non-DC group.DC group surpassed non-DC group in accumulative survival rate. It is concluded that the ex vivo cultivation and clinical therapy application of DC derived from peripheral blood are feasible and safe,DC immunotherapy in patients with acute non-lymphocytic leukemia after autologous bone marrow transplantation prolongs desease-free survival time and enhances long-term survival rate.
出处
《中国实验血液学杂志》
CAS
CSCD
2005年第3期412-416,共5页
Journal of Experimental Hematology
基金
北京二四八科技发展基金资助项目
编号H010210520113
关键词
树突状细胞
抗白血病效应
自体骨髓移植
免疫治疗
细胞治疗
dendritic cell
anti-leukemia effect
autologous bone marrow transplantation
immunotherapy
cell theray
