舌癌Tca8113细胞来源exosomes的制备及鉴定

International Journal of Stomatology(2014)

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Abstract
目的:探讨舌癌Tca8113细胞能否分泌exosomes,为舌癌的免疫治疗寻找新方法。方法采用超速离心及差异密度梯度离心法,从Tca8113细胞中分离并纯化exosomes,通过透射电子显微镜观察其超微结构,蛋白质印迹法分析其表面蛋白成分。结果从Tca8113细胞中成功分离并纯化出exosomes,其结构及携带蛋白与其他细胞来源的相似,并发现其分泌的exosomes还携带有肿瘤抗原。结论舌癌Tca8113细胞能分泌exosomes,而且其携带多种与肿瘤免疫相关的蛋白可能具有抗肿瘤作用。
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Key words
exosomes,western blot,transmission electron microscopy,tumor immunity
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