Nuclear functions co-opted by human rhinovirus during replication in the cytoplasm of infected cells

人鼻病毒在受感染细胞的细胞质中复制过程中选择的核功能

• 批准号: 10443844
• 负责人: Paul D Gershon
• 金额: $ 46.57万
• 依托单位: UNIVERSITY OF CALIFORNIA-IRVINE
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-07-02 至 2026-08-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10443844
• 关键词: Address; Animal Diseases; Antiviral Agents; Antiviral Therapy; Behavior; Biogenesis; Cell Line; Cell Nucleus; Cell physiology; Cells; Cellular biology; Code; Common Cold; Complement; Complex; Coxsackie Viruses; Cytoplasm; Data; Data Set; Disease; Drosophila genus; Encephalitis; Enterovirus; Enterovirus 68; Enterovirus 71; Environment; Eukaryota; Family; Family Picornaviridae; Gene Expression; Genes; Hand, Foot and Mouth Disease; Hela Cells; Hepatitis; Hepatitis A Virus; Human; Human poliovirus; Infection; Knowledge; Lead; Lung; Mass Spectrum Analysis; Messenger RNA; Molecular; Molecular Biology; Morbidity - disease rate; Myocarditis; Nonstructural Protein; Nuclear; Nuclear Pore; Nuclear Protein; Nuclear Proteins; Nuclear RNA; Open Reading Frames; Paralysed; Pattern; Peptide Hydrolases; Play; Poliomyelitis; Polyadenylation; Pre-mRNA Polyadenylation Factor; Process; Protein Analysis; Protein Family; Protein Splicing; Proteins; Proteome; Publications; Publishing; RNA; RNA Sequences; RNA Splicing; RNA Viruses; RNA replication; RNA-Binding Proteins; Reporting; Respiratory Tract Infections; Rhinovirus; Rhinovirus infection; Role; Series; Structural Protein; Symptoms; Translations; Transport Process; Validation; Viral; Viral Nonstructural Proteins; Viral Proteins; Virion; Virus; Virus Replication; base; cell type; cohort; experimental study; genomic RNA; human disease; human morbidity; insight; member; novel; novel virus; pathogen; protein distribution; protein expression; respiratory; respiratory virus; trafficking; transmission process; viral RNA; virus host interaction

Picornaviruses cause a wide range of significant human and animal diseases, including poliomyelitis, hepatitis, encephalitis, myocarditis, and the common cold. Since they are among the most genetically simple of all RNA viruses, members of the picornavirus family must usurp host cell functions and modify the cytoplasmic environment to facilitate viral translation, RNA replication, and virion biogenesis. Among the many ways that picornaviruses alter host cell functions is by re-localizing them from the nucleus to the cytoplasm where viral replication takes place. The nuclear versus cytoplasmic separation of the major processes that lead to the expression of protein-coding genes in eukaryotes requires a complex transport process that allows RNAs and proteins to move between these two cellular compartments. The Picornaviridae family is one of several virus families that disrupt the nucleo-cytoplasmic trafficking of cells to promote viral replication. Viral proliferation requires the activity of host RNA-binding proteins that normally function in cellular gene expression and are primarily localized to the nucleus. Picornaviruses alter nucleo-cytoplasmic trafficking to exploit these and other nuclear proteins that are subsequently delivered to the cytoplasm to facilitate efficient viral replication. Our recently-published analysis of the nuclear versus cytoplasmic proteome in human rhinovirus-infected cells has established the identities of a large cohort of nuclear proteins that re-localize to the cytoplasm during infection. In this application, state-of-the-art molecular and cell biology experiments are proposed to determine the functional significance of this protein redistribution on human rhinovirus replication, focusing on nuclear RNA binding proteins involved in mRNA splicing/processing and 3’ polyadenylation. A global analysis of protein distribution during rhinovirus infection of different human lung cell lines by quantitative mass spectrometry is also proposed to uncover novel virus-host interactions that may be respiratory cell-type specific. Results from these studies should reveal novel mechanistic insights into how a respiratory virus like human rhinovirus co-opts specific host nuclear functions and how these functions are altered or re-purposed for specific steps in viral replication. Detailed knowledge of such interactions, particularly at essential interfaces between host proteins and viral proteins and/or viral RNA sequences, promises to reveal new targets for antiviral therapies.

PICORNAVIRES引起广泛的人类和动物疾病，包括脊髓灰质炎，肝炎， 脑炎，心肌炎和普通感冒。由于它们是所有RNA中最简单的 病毒，Picornavirus家族的成员必须篡夺宿主细胞功能并修改细胞质 促进病毒翻译，RNA复制和病毒体生物发生的环境。在许多方式中 picornaviruses改变宿主细胞功能是将其从细胞核重新定位到病毒的细胞质 复制发生。主要过程的核与细胞质分离 蛋白质编码基因在真核生物中的表达需要一个复杂的运输过程，该过程允许RNA和 蛋白质在这两个细胞室之间移动。 Picornaviridae家族是几种病毒之一 破坏细胞核胞质运输以促进病毒复制的家族。病毒增殖 需要通常在细胞基因表达中起作用的宿主RNA结合蛋白的活性，并且 picornaviruses改变了核质质贩运，以利用这些和其他 随后递送到细胞质以促进有效的病毒复制的核蛋白质。我们的 最近发表的对人类鼻病毒感染细胞中的核与细胞质蛋白质组的分析已 建立了大量的核蛋白质的身份，这些核蛋白会在感染过程中重新定位到细胞质。 在此应用中，提出了最先进的分子和细胞生物学实验来确定 该蛋白重新分布对人鼻病毒复制的功能意义，重点是核RNA 与mRNA剪接/加工和3'聚腺苷酸化有关的结合蛋白。全球蛋白质分析 通过定量质谱法对不同人肺细胞系的鼻病毒感染分布也是 提议发现可能是呼吸细胞类型的新型病毒宿主相互作用。这些结果 研究应揭示有关人类鼻病毒等呼吸病毒如何共同使用的新机械洞察力 特定的宿主核函数以及如何改变或重新使用这些功能，以便在病毒中特定步骤 复制。详细了解此类相互作用，尤其是在宿主蛋白之间的基本接口 和病毒蛋白和/或病毒RNA序列有望揭示抗病毒疗法的新靶标。