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HPV16E6基因树突状细胞疫苗的体内抗宫颈癌研究

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摘要 目的:研究HPV16E6基因人脐带血CD34+造血干细胞来源的树突状细胞(DC)疫苗在SCID小鼠体内对人宫颈癌细胞的免疫治疗和保护效应。方法:从人脐带血分离单个核细胞中提取CD34+干细胞,并诱导其向DC分化;采用阳离子脂质体DMRIE-C将HPV16E6基因介导进入DC,制备其疫苗。在SCID小鼠体内观察DC疫苗的体内致瘤情况及经其致敏的淋巴细胞对人宫颈癌细胞的免疫治疗和保护作用。结果:人脐带血来源CD34+干细胞能诱导出成熟及有功能的DC;体内抗肿瘤研究,经DC疫苗致敏的T淋巴细胞治疗荷瘤小鼠,肿瘤生长速度、瘤体积和重量明显小于未致敏T淋巴细胞治疗的荷瘤小鼠(P<0.01)。用经DC疫苗致敏的人外周血T淋巴细胞预免疫SCID小鼠,受宫颈癌细胞攻击后,与未致敏的T淋巴细胞预免疫组比,肿瘤潜伏期延长(P<0.01),体积减小,重量减轻(P<0.01)。结论:HPV16E6基因人脐带血CD34+造血干细胞来源的DC疫苗在一定程度上能抑制宫颈癌细胞生长,对其攻击有一定抵御作用,对机体具有抗肿瘤免疫治疗和保护作用。
出处 《汕头大学医学院学报》 2010年第4期221-223,共3页 Journal of Shantou University Medical College
基金 广东省医学科研基金课题(A2007434)
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