原代分化人鼻上皮细胞中对流感和减毒活流感疫苗感染的天然免疫反应评估
Evaluation of the innate immune responses to influenza and live-attenuated influenza vaccine infection in primary differentiated human nasal epithelial cells.
作者信息
Forero Adriana, Fenstermacher Katherine, Wohlgemuth Nicholas, Nishida Andrew, Carter Victoria, Smith Elise A, Peng Xinxia, Hayes Melissa, Francis Doreen, Treanor John, Morrison Juliet, Klein Sabra L, Lane Andrew, Katze Michael G, Pekosz Andrew
机构信息
Department of Microbiology, University of Washington, Seattle, WA, USA.
W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
出版信息
Vaccine. 2017 Oct 27;35(45):6112-6121. doi: 10.1016/j.vaccine.2017.09.058. Epub 2017 Sep 28.
The host innate immune response to influenza virus is a key determinant of pathogenic outcomes and long-term protective immune responses against subsequent exposures. Here, we present a direct contrast of the host responses in primary differentiated human nasal epithelial cell (hNEC) cultures following infection with either a seasonal H3N2 influenza virus (WT) or the antigenically-matched live-attenuated vaccine (LAIV) strain. Comparison of the transcriptional profiles obtained 24 and 36h post-infection showed that the magnitude of gene expression was greater in LAIV infected relative to that observed in WT infected hNEC cultures. Functional enrichment analysis revealed that the antiviral and inflammatory responses were largely driven by type III IFN induction in both WT and LAIV infected cells. However, the enrichment of biological pathways involved in the recruitment of mononuclear leukocytes, antigen-presenting cells, and T lymphocytes was uniquely observed in LAIV infected cells. These observations were reflective of the host innate immune responses observed in individuals acutely infected with influenza viruses. These findings indicate that cell-intrinsic type III IFN-mediated innate immune responses in the nasal epithelium are not only crucial for viral clearance and attenuation, but may also play an important role in the induction of protective immune responses with live-attenuated vaccines.
宿主对流感病毒的固有免疫反应是致病结果和针对后续感染的长期保护性免疫反应的关键决定因素。在此,我们直接对比了原代分化人鼻上皮细胞(hNEC)培养物在感染季节性H3N2流感病毒(WT)或抗原匹配的减毒活疫苗(LAIV)毒株后宿主的反应。对感染后24小时和36小时获得的转录谱进行比较表明,相对于WT感染的hNEC培养物,LAIV感染中基因表达的幅度更大。功能富集分析显示,抗病毒和炎症反应在很大程度上由WT和LAIV感染细胞中的III型干扰素诱导驱动。然而,在LAIV感染的细胞中独特地观察到了参与单核白细胞、抗原呈递细胞和T淋巴细胞募集的生物学途径的富集。这些观察结果反映了在急性感染流感病毒个体中观察到的宿主固有免疫反应。这些发现表明,鼻上皮细胞内源性III型干扰素介导的固有免疫反应不仅对病毒清除和减毒至关重要,而且可能在减毒活疫苗诱导保护性免疫反应中发挥重要作用。