Division of Immunology and Allergy, Department of Medicine, Lausanne University Hospital, Lausanne, Switzerland.
J Virol. 2012 Jun;86(11):6279-85. doi: 10.1128/JVI.00123-12. Epub 2012 Apr 4.
Adenovirus serotype 5 (Ad5) vectors and specific neutralizing antibodies (NAbs) generate immune complexes (ICs) which are potent inducers of dendritic cell (DC) maturation. Here we show that ICs generated with rare Ad vector serotypes, such as Ad26 and Ad35, which are lead candidates in HIV vaccine development, are poor inducers of DC maturation and that their potency in inducing DC maturation strongly correlated with the number of Toll-like receptor 9 (TLR9)-agonist motifs present in the Ad vector's genome. In addition, we showed that antihexon but not antifiber antibodies are responsible for the induction of Ad IC-mediated DC maturation.
腺病毒血清型 5(Ad5)载体和特定的中和抗体(NAb)会产生免疫复合物(IC),这些复合物是树突状细胞(DC)成熟的有效诱导剂。在这里,我们发现,在 HIV 疫苗开发中作为主要候选者的罕见腺病毒载体血清型(如 Ad26 和 Ad35)产生的 IC 对 DC 成熟的诱导作用较弱,其诱导 DC 成熟的效力与腺病毒载体基因组中存在的 Toll 样受体 9(TLR9)激动剂序列的数量密切相关。此外,我们还表明,抗六邻体而不是抗纤维抗体负责诱导 Ad IC 介导的 DC 成熟。