IMMUNOLOGICAL RESPONSE TO INFLUENZA INFECTION IN NH PRIMATES

这个子项目是利用资源的许多研究子项目之一 由NIH/NCRR资助的中心拨款提供。次级项目的主要支助 而子项目的主要调查员可能是由其他来源提供的， 包括其它NIH来源。 为子项目列出的总成本可能 代表子项目使用的中心基础设施的估计数量， 而不是由NCRR赠款提供给子项目或子项目工作人员的直接资金。 该项目的目标是使用非人灵长类动物感染模型，结合从受感染动物的血液和淋巴中分离的特定细胞类型的基因组分析，来定义流感病毒-宿主相互作用以及对感染的先天性和适应性免疫反应。在本报告期内，我们专注于建立通过流式细胞术（使用新收购的FACS Aria仪器）分选细胞的技术和参数，并优化从分离细胞中收获RNA和蛋白质的时间和方法，用于随后分析细胞基因表达和蛋白质丰度。不幸的是，在从分选的细胞群体获得合适的RNA的努力中发现了大量的技术障碍。尽管反复努力，只能从分选的细胞中获得低质量的RNA。我们选择检查流感感染模型主要是出于免疫学核心的兴趣，对分选的免疫细胞亚群进行详细表征。Katze实验室已经对其他非人灵长类动物流感感染模型进行了一般性表征，包括史密斯实验室正在进行的蛋白质组学研究。因此，获得适合RNA分离的分选细胞的困难大大降低了这项研究的潜在科学影响。出于这个原因，我们选择将注意力集中在一个不同的非人类灵长类动物模型上，在这个模型中，整体科学问题并不高度依赖于细胞分选的性能。考虑到科学界尚未满足的需求，我们已将资源重新用于进行急性SIV感染研究;详细信息见进度报告其他部分功能基因组学和传染病司的一般说明。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. The goal of this project is to use a nonhuman primate infection model, combined with genomic analyses of specific cell types isolated from the blood and lymph of infected animals, to define influenza virus-host interactions and the innate and adaptive immune responses to infection. During the current reporting period, we focused on establishing the techniques and parameters for sorting cells by flow cytometry (using a newly acquired FACS Aria instrument) and for optimizing the timing and methods for harvesting RNA and protein from isolated cells for subsequent analysis of cellular gene expression and protein abundance. Unfortunately, a large number of technical hurdles were uncovered in the effort to obtain suitable RNA from sorted cell populations. Despite repeated efforts, only low-quality RNA could be obtained from sorted cells. Our choice to examine an influenza infection model was largely premised on the interest of the Immunology Core to do a detailed characterization of sorted immune cell subsets. Other nonhuman primate influenza-infection models have already been generally characterized by the Katze Laboratory, including ongoing proteomics investigations with the Smith Laboratory. Consequently, the difficulty in obtaining sorted cells suitable for RNA isolation greatly diminished the potential scientific impact of this investigation. For this reason, we have chosen to focus attention on a different nonhuman primate model where the overall scientific questions are not so highly dependent on the performance of cell sorting. In consideration of unmet needs in the scientific community, we have redirected our resources to performing an acute SIV-infection study; details are given elsewhere in the progress report, under the general narrative for the Division of Functional Genomics and Infectious Disease.