The molecular pathogenesis of varicella zoster virus infection

水痘带状疱疹病毒感染的分子发病机制

基本信息

  • 批准号:
    8434120
  • 负责人:
  • 金额:
    $ 140.64万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2009
  • 资助国家:
    美国
  • 起止时间:
    2009-03-01 至 2014-02-28
  • 项目状态:
    已结题

项目摘要

DESCRIPTION (provided by applicant): The goal of this program project is to understand the relationship between the latent state of the highly neurotropic varicella zoster virus (VZV) in human ganglia and the development of acute and chronic neurologic disease produced by virus reactivation. The program project contains an administrative core, a scientific core and 3 scientific projects. Primary infection by varicella zoster virus (VZV) usually causes varicella (chickenpox), after which virus becomes latent in human ganglionic neurons along the entire neuraxis. With aging, a declining cell-mediated immunity to VZV leads to virus reactivation, manifesting as herpes zoster (shingles) characterized by pain and rash restricted to 1-3 dermatomes. The incidence and severity of zoster is also high in transplant recipients and patients with cancer or AIDS. Zoster is frequently complicated by chronic pain (postherpetic neuralgia), as well as paralysis, blindness and stroke. Currently, ~1,000,000 Americans develop zoster annually. Oka VZV vaccine reduces the incidence of zoster by 50%, but even if every American over age 60 was vaccinated, >500,000 cases of zoster would still occur every year. This program project is focused exclusively on the molecular pathogenesis of primary VZV infection, latency and reactivation. Project 1 studies inhibition of apoptosis by both viral and cellular proteins during VZV infection of neurons that results in neuronal survival and viral latency. Project 2 studies molecular mechanisms of VZV latency and reactivation in ganglia, focusing on VZV IE63, the protein product of the most prevalent and abundant transcript identified in latently infected human ganglia, and whose translocation from the cytoplasm to the nucleus may result in altered IE63 function and induction of virus reactivation. Project 3 studies the immunobiology of varicella in an animal model, focusing on identification of host cell types and their role in transport and establishment of varicella infection in skin and ganglia during primary infection and cytokine expression and virus-specific T cells in varicella reactivation. A comprehensive knowledge of the physical state of latent and reactivated VZV and simian varicella virus (SVV) will provide the rational underpinning for strategies to prevent the cascade of events leading to human VZV reactivation, a cause of serious neurologic disease, particularly in the rapidly increasing elderly and immunocompromised populations. This proposal melds the skills and strategies of investigators with expertise in clinical neurology, virology, molecular and cell biology and clinical investigation.
描述(由申请人提供):本计划项目的目标是了解高度嗜神经性水痘带状疱疹病毒(VZV)在人类神经节中的潜伏状态与病毒再激活引起的急性和慢性神经系统疾病的发展之间的关系。该计划项目包括一个行政核心,一个科学核心和3个科学项目。水痘带状疱疹病毒(VZV)的初次感染通常引起水痘(水痘),之后病毒潜伏在人类神经节神经元沿着整个神经轴。随着年龄的增长,细胞介导的对VZV的免疫力下降导致病毒重新激活,表现为带状疱疹(带状疱疹),其特征在于疼痛和皮疹仅限于1-3个皮区。带状疱疹的发病率和严重程度在移植受者和癌症或艾滋病患者中也很高。带状疱疹经常并发慢性疼痛(带状疱疹后神经痛),以及瘫痪,失明和中风。目前,每年约有1,000,000美国人发展带状疱疹。Oka VZV疫苗将带状疱疹的发病率降低了50%,但即使每个60岁以上的美国人都接种了疫苗,每年仍会发生> 50万例带状疱疹。该计划项目专门关注原发性VZV感染,潜伏期和再激活的分子发病机制。项目1研究了VZV感染神经元期间病毒和细胞蛋白对细胞凋亡的抑制,导致神经元存活和病毒潜伏期。 项目2研究VZV潜伏和神经节中再激活的分子机制,重点是VZV IE63,在潜伏感染的人类神经节中鉴定的最普遍和丰富的转录物的蛋白产物,并且其从细胞质到细胞核的易位可能导致IE63功能改变和病毒再激活的诱导。项目3在动物模型中研究水痘的免疫生物学,重点是鉴定宿主细胞类型及其在原发感染期间在皮肤和神经节中运输和建立水痘感染的作用,以及水痘再激活中的细胞因子表达和病毒特异性T细胞。全面了解VZV和猴水痘病毒(SVV)的潜伏和再活化的物理状态,将为预防导致人类VZV再活化的级联事件的策略提供合理的基础,这是严重神经系统疾病的原因,特别是在迅速增加的老年人和免疫功能低下的人群中。该提案融合了临床神经学、病毒学、分子和细胞生物学以及临床研究方面的研究人员的技能和策略。

项目成果

期刊论文数量(0)
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DONALD GILDEN其他文献

DONALD GILDEN的其他文献

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{{ truncateString('DONALD GILDEN', 18)}}的其他基金

Neurobiology of Varicella Zoster Virus
水痘带状疱疹病毒的神经生物学
  • 批准号:
    8979278
  • 财政年份:
    2015
  • 资助金额:
    $ 140.64万
  • 项目类别:
The Molecular Pathogenesis of Varicella Zoster Virus Infection
水痘带状疱疹病毒感染的分子发病机制
  • 批准号:
    8458407
  • 财政年份:
    2012
  • 资助金额:
    $ 140.64万
  • 项目类别:
The Molecular Pathogenesis of Varicella Zoster Virus Infection
水痘带状疱疹病毒感染的分子发病机制
  • 批准号:
    8608702
  • 财政年份:
    2009
  • 资助金额:
    $ 140.64万
  • 项目类别:
The molecular pathogenesis of varicella zoster virus infection
水痘带状疱疹病毒感染的分子发病机制
  • 批准号:
    7561144
  • 财政年份:
    2009
  • 资助金额:
    $ 140.64万
  • 项目类别:
The molecular pathogenesis of varicella zoster virus infection
水痘带状疱疹病毒感染的分子发病机制
  • 批准号:
    8037650
  • 财政年份:
    2009
  • 资助金额:
    $ 140.64万
  • 项目类别:
The molecular pathogenesis of varicella zoster virus infection
水痘带状疱疹病毒感染的分子发病机制
  • 批准号:
    7766223
  • 财政年份:
    2009
  • 资助金额:
    $ 140.64万
  • 项目类别:
The molecular pathogenesis of varicella zoster virus infection
水痘带状疱疹病毒感染的分子发病机制
  • 批准号:
    8231345
  • 财政年份:
    2009
  • 资助金额:
    $ 140.64万
  • 项目类别:
INTRAVENOUS ACYCLOVIR TREATMENT FOR POSTHERPETIC NEURALGIA
静脉注射阿昔洛韦治疗带状疱疹后神经痛
  • 批准号:
    7200592
  • 财政年份:
    2005
  • 资助金额:
    $ 140.64万
  • 项目类别:
Analysis of B Cell Responses in Multiple Sclerosis
多发性硬化症中 B 细胞反应的分析
  • 批准号:
    6745999
  • 财政年份:
    2003
  • 资助金额:
    $ 140.64万
  • 项目类别:
Administrative Core
行政核心
  • 批准号:
    6746060
  • 财政年份:
    2003
  • 资助金额:
    $ 140.64万
  • 项目类别:

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急性和慢性 GPCR 药物心脏保护:受体串扰的作用、细胞信号传导以及年龄的影响
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