分类号:Q78文献标识码:A
文章编号:1000-8861(2001)01-0060-04
Establishment and biological characteristics of fusions of lung cancer cell with dendritic cell
LU Yan-rong(Cancer Center and Cancer Institute of the First University Hospital, West China University of MedicalScience, Chengdu 610041, China)
LIN Ping(Cancer Center and Cancer Institute of the First University Hospital, West China University of MedicalScience, Chengdu 610041, China)
ZHANG Jie(Cancer Center and Cancer Institute of the First University Hospital, West China University of MedicalScience, Chengdu 610041, China)
WANG Xiu-jie(Cancer Center and Cancer Institute of the First University Hospital, West China University of MedicalScience, Chengdu 610041, China)
ZHOU Hong-yuan(Cancer Center and Cancer Institute of the First University Hospital, West China University of MedicalScience, Chengdu 610041, China)
HUANG Xiao-zhong(Cancer Center and Cancer Institute of the First University Hospital, West China University of MedicalScience, Chengdu 610041, China)
NING Qi-zhi(Cancer Center and Cancer Institute of the First University Hospital, West China University of MedicalScience, Chengdu 610041, China)
Abstract:ObjectiveTo explore the established method of tumor vaccine generated by hybrid technique and study the biological characteristics of lung cancer-dendritic fusion cell. Methods HGPRT defective Lewis lung cancer cell line, AL9901, was fused with bone marrow derived dendritic cells (DC) by PEG-1000. The phenotypes and proliferation characteristic of the fused cell were observed in vitro, and its tumor generating rate was observed in vivo.Results The DC was fused with AL9901 at a ratio of 6∶1 and the fusion rate was about 30% and the resultant FLD-A11 hybrid cell was obtained through screening. The FLD-A11 cell could proliferate slowly in vitro and express CD80, CD40, H-2Kb, MIDC and lung cancer antigen. There was no colony formed in soft agar, and no tumor mass formed in vivo after injection of FLD-A11 at 2×106 per mice.Conclusions Lung cancer vaccine could be obtained through tumor cell fusion with DC, thereby acquired the immuno-stimulating phenotype to stimulate the specific antitumor activity in vivo. The FLD-A11 cell could be applied without danger of tumor generation. These data found a basis for the study of specific antitumor immunity and active immunotherapy of DC-based vaccine.
Keywords:lung cancer; dendritic cell; cell fusion; biological characteristics基金项目:国家自然科学基金资助项目(39800147)
作者简介:陆燕蓉(1964-),女,四川成都市人,助理研究员,硕士,主要从事肿瘤疫苗研究。Tel:(028)5501281;E-mail: ld@homeway.com参考文献:
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收稿日期:2000年9月21日
修稿日期:2000年10月20日
出版日期:2001年1月15日
