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HER2/neu胞外区片段基因免疫诱导特异细胞免疫及其抗瘤效应研究 被引量：1

Induction of Cellular Immune Response by Intramuscular DNA Immunization with HER-2/neu Extracellular Domain Gene and Its Anti-Tumor Effect
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摘要 目的：探讨ＨＥＲ２／ｎｅｕ原癌基因胞外区片段ＤＮＡ免疫诱导的特异性细胞免疫应答及其在体内的抗瘤效应。方法：克隆并构建人ＨＥＲ２／ｎｅｕ原癌基因及其胞外区片段表达载体，分别转染ＳＰ２／０细胞以制备杀伤靶细胞。将质粒ＤＮＡ免疫小鼠，观察其诱导的细胞免疫应答，同时分析免疫动物体内抗瘤效应。结果：体外获得稳定表达ＨＥＲ２／ｎｅｕ基因的ＳＰ２／０靶细胞。目的基因ＤＮＡ免疫后，免疫鼠脾细胞在体外可检测到特异性杀伤作用，体内肿瘤细胞接种后可发现肿瘤结节出现时间延迟，肿瘤生长缓慢。结论： ＨＥＲ２／ｎｅｕ原癌基因胞外区片段ＤＮＡ免疫可诱导出特异细胞免疫应答，并具有一定抗瘤效应。 Objective: To study the cellular immune response and the anti-tumor effects induced by intramuscular DNA immu- nization with HER2/neu extracellular domain gene. Methods: HEH2/neu oncogene extracelltilar domain gene was isolated and inserted to pCDNA3 expression vector. The cellular immune response and its anti-tumor effects were analyzed after intramuscular DNA immunization. Results: A specific cytotoxic activity by spleen cells from HER2/neu ECD gene immunized mice was found in vitro. Tumor growth was inhibited after tumor challenge in vivo in immunized mice. Conclusion: Specific cellular immune re- sponse and anti-tumor effect were elicited by HEB2/neu extracellular domain gene immunization.
作者 张跃建 何球藻 秦慧莲
机构地区 上海医科大学免疫学教研室
出处 《中国肿瘤生物治疗杂志》 CAS CSCD 2000年第1期18-20,共3页 Chinese Journal of Cancer Biotherapy
基金 自然科学基金项目!(39870707)资助
关键词 HER2/nen DNA 肿瘤 基因治疗 免疫应答 HER2/neu extracellular domain DNA immunization cellular immunity anti-tumor effect
分类号 R730.51 [医药卫生—肿瘤] R392.1 [医药卫生—免疫学]
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中国肿瘤生物治疗杂志
2000年 第1期

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