Monaco Alessandro, Marincola Francesco M, Sabatino Marianna, Pos Zoltan, Tornesello Maria Lina, Stroncek David F, Wang Ena, Lewis George K, Buonaguro Franco M, Buonaguro Luigi
Infectious Disease and Immunogenetics Section, Department of Transfusion Medicine, Clinical Center, National Institutes of Health Bethesda, MD, USA.
FEBS Lett. 2009 Sep 17;583(18):3004-8. doi: 10.1016/j.febslet.2009.07.060. Epub 2009 Aug 6.
The global transcriptional profile of peripheral blood mononuclear cells (PBMCs) stimulated with HIV candidate vaccine (virus-like particles, VLPs) has been evaluated in HIV-infected patients with low/high viral load compared to healthy volunteers. Baseline activation of chemokine production was observed in PBMC from HIV-infected patients and innate immune stimulation with HIV-VLPs was not blunted. The immune profile among HIV-infected patients was found to be qualitatively similar but quantitatively extremely variable. This diversity was independent of viral load and it might be dependent on individual immunogenetic traits or concurrent immunological status. This ex vivo screening strategy represents an efficient tool for guiding modifications/optimizations of vaccination strategies and understanding failures in individuals enrolled in clinical trials.
与健康志愿者相比,已在病毒载量低/高的HIV感染患者中评估了用HIV候选疫苗(病毒样颗粒,VLPs)刺激的外周血单个核细胞(PBMC)的全球转录谱。在HIV感染患者的PBMC中观察到趋化因子产生的基线激活,并且HIV-VLPs的先天免疫刺激并未减弱。发现HIV感染患者之间的免疫谱在质量上相似,但在数量上差异极大。这种多样性与病毒载量无关,可能取决于个体免疫遗传特征或并发免疫状态。这种体外筛选策略是指导疫苗接种策略的修改/优化以及理解参与临床试验个体失败原因的有效工具。