Institute for Virology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.
J Virol. 2012 Nov;86(22):12422-5. doi: 10.1128/JVI.01607-12. Epub 2012 Aug 29.
While Friend retrovirus-infected mice readily mount a vigorous CD8(+) T cell response to the leader-gag-derived peptide GagL(85-93), no GagL(85-93)-specific T cells were detectable in mice immunized against Friend virus (FV) with viral vectors or DNA vaccines. By exchanging one epitope-flanking amino acid or using a scaffold protein we were able to demonstrate for the first time the induction of GagL(85-93)-specific CD8(+) T cells by genetic vaccination and show their high protective effect against FV challenge infection.
虽然 Friend 逆转录病毒感染的小鼠很容易对来自 leader-gag 衍生肽 GagL(85-93)的强烈 CD8(+) T 细胞反应,但在用病毒载体或 DNA 疫苗对 Friend 病毒 (FV) 进行免疫的小鼠中,未检测到针对 GagL(85-93)的 T 细胞。通过交换一个表位侧翼氨基酸或使用支架蛋白,我们首次能够证明通过基因疫苗接种诱导 GagL(85-93)-特异性 CD8(+) T 细胞,并显示它们对 FV 攻击感染的高度保护作用。