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DNA vaccination against v-src oncogene-induced tumours in congenicchickens

机译:针对v-src癌基因诱发的先天性鸡肿瘤的DNA疫苗接种

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DNA vaccination is particularly efficient for induction of cytotoxic T-lymphocyte (CTL) response. In our experiments, we used MHC(B) congenic chicken lines CB and CC (regressors and progressors of v-src-induced tumours, respectively) and a mutated, non-oncogenic v-src gene construct as the DNA vaccine. A high degree of vaccine protection against oncogenic v-src challenge was achieved in the CB line chickens. CTL response was demonstrated in vitro and by adoptive transfer of immune cells to the syngeneic host and to the CC line chickens rendered tolerant to CB cells. In the CC line chickens we observed tumour growth retardation after a low-dose DNA vaccination administered to immature recipients while higher amounts of DNA vaccine in immunocompetent chickens exerted an enhancing effect.
机译:DNA疫苗接种对于诱导细胞毒性T淋巴细胞(CTL)反应特别有效。在我们的实验中,我们使用了MHC(B)同系鸡品系CB和CC(分别是v-src诱导的肿瘤的回归和进展)和突变的非致癌性v-src基因构建体作为DNA疫苗。在CB品系鸡中实现了针对致癌v-src攻击的高度疫苗保护。体外和通过将免疫细胞过继转移至同源宿主和对CB细胞耐受的CC系鸡中证明了CTL反应。在CC系鸡中,我们观察到对未成熟的接受者进行低剂量DNA疫苗接种后,肿瘤生长迟缓,而在具有免疫能力的鸡中,更高剂量的DNA疫苗则发挥了增强作用。

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