HTLV-1 Particle Analysis and Gag Interactions
HTLV-1 颗粒分析和堵嘴相互作用
基本信息
- 批准号:9333502
- 负责人:
- 金额:$ 47.16万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-09-28 至 2021-04-30
- 项目状态:已结题
- 来源:
- 关键词:AdultAdult T-Cell Leukemia/LymphomaAffectAgeAntibodiesBiogenesisCancer EtiologyCapsidCell Culture TechniquesCell membraneCell surfaceCellsCryoelectron MicroscopyDiseaseEtiologyEventFemaleFluorescenceFluorescence MicroscopyFoundationsGeographic LocationsGoalsHIV-1HumanHuman CharacteristicsHuman T-Cell Leukemia VirusesHuman T-lymphotropic virus 1IndividualInflammatoryInvestigationKnowledgeLightMason-Pfizer monkey virusMembraneMethodsMicrobial BiofilmsMicroscopyMolecularMolecular ModelsMorphologyNaturePathway interactionsPopulationPrevalenceProcessReportingResolutionRetroviridaeRoleRous sarcoma virusScanningSiteSite-Directed MutagenesisSpectrum AnalysisSpinal Cord DiseasesStructural ProteinStructureSyndromeSystemTestingTranslationsTropical Spastic ParaparesisViralVirionVirusVirus AssemblyVirus Replicationagedcomparativedensityexperimental studyinnovationinnovative technologiesinsightmolecular modelingnew technologynovelnovel therapeutic interventionparticlereconstructiontomographytransmission processviral transmissionvirological synapsevirologyvirus envelope
项目摘要
Abstract
Human T-cell leukemia virus (HTLV-1) infects about 15-20 million individuals worldwide and is the etiological
agent of an adult T-cell leukemia/lymphoma (ATLL), and can also result in an inflammatory disease syndrome
called HTLV-1-associated myelopathy (HAM)/tropical spastic paraparesis (TSP). HTLV-1 antibody prevalence
rates vary among geographical areas, ranging from 0.2 to 10% among adults. This antibody prevalence
increases with age, and can affect as much as 20 to 50% of the female population aged 60 and above. HTLV-1
is notorious for being difficult to study in cell culture, which has prohibited a rigorous analysis of how these
viruses replicate in cells, including the steps involved in retrovirus assembly. The details for how retrovirus
particle assembly occurs are poorly understood even for other more tractable retroviral systems like that of
human immunodeficiency virus type 1 (HIV-1). For instance, recent evidence indicates that Gag-Gag
interactions differ among retroviruses, which helps explain morphological differences that we have documented
among immature retrovirus particles. Furthermore, the role for membrane-bound, non-punctate (np) Gag in the
biogenesis of Gag puncta, as well as the nature of Gag puncta biogenesis in the context of cell-to-cell contacts
also remain poorly understood aspects of the retrovirus assembly pathway. This is particularly for HTLV-1, for
which we have found to have fundamentally distinct differences to that of HIV-1 regarding the role of
membrane-bound np Gag in Gag punta biogenesis. In this application, we propose to continue our
investigations on HTLV-1 immature and mature particle structure and particle biogenesis through innovative
state-of-the-art experimental approaches with appropriate comparative analyses with HIV-1. In particular, we
will apply cryo-electron microscopy/tomography (cryo-EM/ET), photoactivated localization microscopy (PALM),
total internal reflection fluorescence (TIRF) microscopy and the novel technology of z-scan fluorescence
fluctuation spectroscopy (FFS) in living cells to investigate 1) analysis of immature HTLV-1 Gag lattice
structure, 2) the importance of membrane-bound, np Gag in HTLV-1 particle biogenesis, and 3) HTLV-1
particle biogenesis in the context of cell-cell contacts. Careful comparisons will be done with HIV-1. These
novel studies harness innovative technologies in order to provide new insights into a highly significant and
poorly understood aspect of the HTLV-1 particle assembly process, which is fundamentally distinct from that of
HIV-1 and other retroviruses. Furthermore, our studies represent some of the most detailed studies conducted
on the assembly of virus structural proteins, which provides fundamentally important information in virology on
the molecular nature of virus particle assembly at the plasma membrane for enveloped viruses.
摘要
人类T淋巴细胞白血病病毒(HTLV-1)感染了全球约1500万至2000万人,是人类白血病的病原体。
成人T细胞白血病/淋巴瘤(ATLL)的因子,也可导致炎性疾病综合征
称为HTLV-IgM 1-IgM相关性脊髓病(HAM)/热带痉挛性轻瘫(TSP)。
各地理区域的感染率各不相同,成年人的感染率从0.2%到10%不等。
随着年龄的增长而增加,并可影响多达20%至50%的60岁及以上的女性人口。
众所周知,在细胞培养中很难研究,这使得人们无法严格分析这些细胞是如何生长的。
病毒在细胞中复制,包括逆转录病毒装配的步骤。 逆转录病毒如何
即使对于其他更易处理的逆转录病毒系统,如
人类免疫缺陷病毒1型(HIV-11)。 例如,最近的证据表明,加格-加格
逆转录病毒之间的相互作用不同,这有助于解释我们已经记录的形态学差异
此外,膜结合的非点状(np)Gag在未成熟逆转录病毒颗粒中的作用也被证实。
Gag puncta的生物发生,以及在细胞-细胞-细胞接触的背景下Gag puncta生物发生的性质
逆转录病毒装配途径的某些方面仍然知之甚少。
我们已经发现,在HIV-1的作用方面,
Gag蓬塔生物发生中的膜结合型NP Gag。 在本申请中,我们建议继续我们的
HTLV-1未成熟和成熟颗粒结构和颗粒生物发生的研究
最先进的实验方法与适当的比较分析与HIV-11。特别是,我们
将应用低温电子显微镜/断层扫描(cryo-SEEM/ET),光活化定位显微镜(PALM),
全内反射荧光显微术(TIRF)和Z-轴扫描荧光新技术
波动光谱(FFS)在活细胞研究1)分析未成熟的HTLV-1 Gag晶格
结构,2)膜结合的重要性,NP Gag在HTLV-1颗粒生物发生中,和3)HTLV-1
在细胞-细胞接触的背景下,粒子的生物发生。将与HIV-11进行仔细的比较。这些
新的研究利用创新技术,以提供新的见解,一个非常重要的,
HTLV-101颗粒组装过程的一个知之甚少的方面,这与HTLV-101颗粒组装过程有根本区别。
此外,我们的研究代表了一些最详细的研究,
关于病毒结构蛋白的组装,它提供了病毒学中的重要信息,
包膜病毒在质膜上的病毒颗粒组装的分子性质。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Louis M Mansky其他文献
Analysis of the HTLV-1 Gag assembly pathway by biophysical fluorescence
- DOI:
10.1186/1742-4690-8-s1-a206 - 发表时间:
2011-06-06 - 期刊:
- 影响因子:3.900
- 作者:
Keir H Fogarty;Yan Chen;Iwen F Grigsby;Patrick J Macdonald;Elizabeth M Smith;Jolene L Johnson;Jonathan M Rawson;Joachim D Mueller;Louis M Mansky - 通讯作者:
Louis M Mansky
Louis M Mansky的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Louis M Mansky', 18)}}的其他基金
Cryo-ET Guided Single Particle Reconstruction of HIV
冷冻电子断层扫描引导的 HIV 单粒子重建
- 批准号:
10033396 - 财政年份:2020
- 资助金额:
$ 47.16万 - 项目类别:
Cryo-ET Guided Single Particle Reconstruction of HIV
冷冻电子断层扫描引导的 HIV 单粒子重建
- 批准号:
10245058 - 财政年份:2020
- 资助金额:
$ 47.16万 - 项目类别:
HTLV-1 Particle Analysis and Gag Interactions
HTLV-1 颗粒分析和堵嘴相互作用
- 批准号:
8664892 - 财政年份:2012
- 资助金额:
$ 47.16万 - 项目类别:
HTLV-1 Particle Analysis and Gag Interactions
HTLV-1 颗粒分析和堵嘴相互作用
- 批准号:
8537954 - 财政年份:2012
- 资助金额:
$ 47.16万 - 项目类别:
HTLV-1 Particle Analysis and Gag Interactions
HTLV-1 颗粒分析和堵嘴相互作用
- 批准号:
8371118 - 财政年份:2012
- 资助金额:
$ 47.16万 - 项目类别:
HTLV-1 Particle Analysis and Gag Interactions
HTLV-1 颗粒分析和堵嘴相互作用
- 批准号:
9914879 - 财政年份:2012
- 资助金额:
$ 47.16万 - 项目类别:
相似海外基金
Inhibition of T-cell Receptor Signaling for Treatment of Adult T-cell Leukemia Lymphoma
抑制 T 细胞受体信号转导治疗成人 T 细胞白血病淋巴瘤
- 批准号:
10684172 - 财政年份:2022
- 资助金额:
$ 47.16万 - 项目类别:
Pathophysiology of Adult T-cell leukemia/lymphoma
成人 T 细胞白血病/淋巴瘤的病理生理学
- 批准号:
10609828 - 财政年份:2022
- 资助金额:
$ 47.16万 - 项目类别:
Pathophysiology of Adult T-cell leukemia/lymphoma
成人 T 细胞白血病/淋巴瘤的病理生理学
- 批准号:
10369933 - 财政年份:2022
- 资助金额:
$ 47.16万 - 项目类别:
Inhibition of T-cell Receptor Signaling for Treatment of Adult T-cell Leukemia Lymphoma
抑制 T 细胞受体信号转导治疗成人 T 细胞白血病淋巴瘤
- 批准号:
10518751 - 财政年份:2022
- 资助金额:
$ 47.16万 - 项目类别:
Adoptive immunotherapy for adult T-cell leukemia/lymphoma with ex vivo expanded multi-tumor associated antigen specific cytotoxic T-cells
使用离体扩增的多肿瘤相关抗原特异性细胞毒性 T 细胞对成人 T 细胞白血病/淋巴瘤进行过继免疫治疗
- 批准号:
20K17375 - 财政年份:2020
- 资助金额:
$ 47.16万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
Establishment of a novel drug discovery platform for adult T-cell leukemia/lymphoma using PROTAC technology
利用PROTAC技术建立成人T细胞白血病/淋巴瘤新药发现平台
- 批准号:
20K08736 - 财政年份:2020
- 资助金额:
$ 47.16万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of a multiplex RT-PCR method to assess the risk of stage progression in adult T-cell leukemia/lymphoma
开发多重 RT-PCR 方法来评估成人 T 细胞白血病/淋巴瘤分期进展的风险
- 批准号:
20K07700 - 财政年份:2020
- 资助金额:
$ 47.16万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Elucidation of genomic alterations and the clinicopathological significance in adult T-cell leukemia/lymphoma
阐明成人 T 细胞白血病/淋巴瘤的基因组改变及其临床病理学意义
- 批准号:
20K16177 - 财政年份:2020
- 资助金额:
$ 47.16万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
Screening of Promising Chemotherapeutic Candidates from Plants against Human Adult T-Cell Leukemia/Lymphoma
从植物中筛选有前途的抗成人 T 细胞白血病/淋巴瘤的化疗候选药物
- 批准号:
19K16403 - 财政年份:2019
- 资助金额:
$ 47.16万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
A new diagnostic algorithm using biopsy specimens in adult T-cell leukemia/lymphoma: combination of RNA in situ hybridization and quantitative PCR for HTLV-1
使用成人 T 细胞白血病/淋巴瘤活检标本的新诊断算法:结合 RNA 原位杂交和 HTLV-1 定量 PCR
- 批准号:
19K07438 - 财政年份:2019
- 资助金额:
$ 47.16万 - 项目类别:
Grant-in-Aid for Scientific Research (C)














{{item.name}}会员




