Mechanisms Of Er-To-Golgi Transport Of Lysosomal Enzymes
溶酶体酶从 Er 到高尔基体的转运机制
基本信息
- 批准号:10376728
- 负责人:
- 金额:$ 31.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2019
- 资助国家:美国
- 起止时间:2019-02-01 至 2023-07-31
- 项目状态:已结题
- 来源:
- 关键词:AcidsAgingAmino Acid MotifsBiogenesisCLN6 geneCLN8 geneCOP-Coated VesiclesCarbohydratesCell DeathCellsCellular biologyClientCommunitiesComplementDataDefectDegenerative DisorderDiseaseEndoplasmic ReticulumEngineeringEnzymesFutureGoalsGolgi ApparatusGrowthHealthHomeostasisHomoHumanHydrolaseImmune System DiseasesImpairmentIntegral Membrane ProteinInvestigationKnock-inKnockout MiceLysosomesMalignant NeoplasmsMammalian CellMapsMediatingMetabolismMethodsMissense MutationModelingMolecularMolecular BiologyMusMutateMutationOrganOrganellesPathogenesisPathogenicityPathway interactionsProteinsProteomicsResearchRoleSignal TransductionSignaling ProteinSorting - Cell MovementSpielmeyer-Vogt DiseaseStructural ModelsSurfaceSystemTertiary Protein StructureTestingTherapeuticTissuesTransportationWorkbasebiochemical toolscancer typecohortdisease-causing mutationhuman diseasein vivointerdisciplinary approachmacromoleculemolecular modelingmutantoverexpressionreceptorrecruittherapy designtraffickingvesicle transport
项目摘要
PROJECT SUMMARY/ABSTRACT
Lysosomes control a substantial part of cellular metabolism by acting as the main catabolic hub of the cell and
serving as a platform for the integration of numerous signals that modulate cell death, growth and proliferation.
Most lysosomal functions rely on a set of more than 50 acid hydrolases that degrade a wide variety of
macromolecules. Lysosomal enzymes are trafficked to the lysosome in two stages: transport of the newly
synthesized proteins from the endoplasmic reticulum (ER) to the Golgi complex, and their subsequent
receptor-assisted transfer from the Golgi to endolysosomal compartments. How lysosomal enzymes are
transported from the ER to the Golgi complex is unknown and, to our knowledge, the simple model of a bulk,
unregulated transportation has never been questioned. We have identified two candidate ER receptors, CLN6
and CLN8, whose deficiency results in altered maturation of lysosomal enzymes and lysosomal storage
disorder-like diseases. We propose to study how CLN6 and CLN8 function in the pathway of maturation of
lysosomal enzymes. First, we will test the hypothesis that CLN6 and CLN8 directly interact with lysosomal
enzymes and that such interaction is disrupted by disease-associated mutations on either CLN6/CLN8 or on
the surface of lysosomal enzymes (Aim 1). Second, we will examine the trafficking and maturation of newly
synthesized lysosomal enzymes to identify the exact step that is disrupted by CLN6 and CLN8 deficiency. We
will also define CLN6 and CLN8 functions in vivo by carrying out detailed tissue-specific analyses of lysosomal
composition in CLN6- and CLN8-deficient mouse lines by LC-MS/MS-based proteomics. To this aim, we have
generated a knock-in Lamp1FLAG mouse line to efficiently isolate lysosomes from the desired tissues (Aim 2).
Third, we will identify the protein domains and motifs that are involved in CLN6/CLN8 interaction and that direct
their sorting across the compartments of the early secretory pathway via COP-coated vesicles (Aim 3). We will
accomplish our goals with a multi-disciplinary approach that uses the tools of biochemistry, molecular biology,
cell biology and mouse engineering and we will also develop a new method of in vivo lysosome isolation from
mouse tissues. Our results are likely to have important consequences for our understanding of the
mechanisms governing lysosomal biogenesis and of the molecular pathogenesis of numerous human
diseases. Some of the regulatory mechanisms we uncover may serve in the future as targets for modulating
lysosomal biogenesis in diseases resulting from impaired lysosomal function or in conditions, such as certain
types of cancer, that are characterized by aberrant or unrestricted lysosomal activation.
项目摘要/摘要
溶酶体通过充当细胞的主要分解代谢中心,控制细胞代谢的大部分部分
作为整合众多信号的平台,这些信号调节细胞死亡,生长和增殖。
大多数溶酶体功能依赖于一组50多个酸水解酶,这些水解酶会降解多种多样
大分子。溶酶体酶在两个阶段被贩运到溶酶体:新运输
从内质网(ER)到高尔基体配合的合成蛋白质,随后的
从高尔基体转移到内溶血症公司。溶酶体酶的
从急诊室运到高尔基体综合体是未知的,据我们所知,是散装的简单模型,
不受管制的运输从未受到质疑。我们已经确定了两个候选ER受体CLN6
和CLN8,其缺乏导致溶酶体酶和溶酶体储存的成熟改变
疾病般的疾病。我们建议研究CLN6和CLN8如何在成熟途径中起作用
溶酶体酶。首先,我们将测试CLN6和CLN8直接与溶酶体相互作用的假设
酶,这种相互作用被CLN6/CLN8或ON上的疾病相关突变所破坏
溶酶体酶的表面(AIM 1)。其次,我们将检查新的贩运和成熟
合成的溶酶体酶确定CLN6和CLN8缺乏破坏的确切步骤。我们
还将通过对溶酶体进行详细的组织特异性分析来定义体内CLN6和CLN8的功能
基于LC-MS/MS的蛋白质组学中CLN6和CLN8缺陷小鼠系的组成。为此,我们有
产生了一个敲入灯泡小鼠线,以有效地分离出所需组织的溶酶体(AIM 2)。
第三,我们将确定与CLN6/CLN8相互作用有关的蛋白质结构域和基序
他们通过涂涂层的蔬菜在早期秘书途径的公司中进行分类(AIM 3)。我们将
通过多学科方法来实现我们的目标,该方法使用生物化学工具,分子生物学,
细胞生物学和小鼠工程,我们还将开发一种从体内溶酶体隔离的新方法
小鼠组织。我们的结果可能会对我们的理解产生重要的影响
控制溶酶体生物发生和许多人的分子发病机理的机制
疾病。我们发现的一些调节机制将来可能作为调节的目标
疾病中的溶酶体生物发生是由于溶酶体功能受损或在某些条件下引起的
癌症的类型,其特征是异常或无限制的溶酶体激活。
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 }}
Marco Sardiello其他文献
Marco Sardiello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('Marco Sardiello', 18)}}的其他基金
TFEB-mediated lysosome-to-nucleus signaling in aging and lifespan regulation
TFEB 介导的溶酶体到细胞核信号传导在衰老和寿命调节中的作用
- 批准号:
10172235 - 财政年份:2021
- 资助金额:
$ 31.5万 - 项目类别:
TFEB-mediated lysosome-to-nucleus signaling in aging and lifespan regulation
TFEB 介导的溶酶体到细胞核信号传导在衰老和寿命调节中的作用
- 批准号:
10413974 - 财政年份:2021
- 资助金额:
$ 31.5万 - 项目类别:
TFEB-mediated lysosome-to-nucleus signaling in aging and lifespan regulation
TFEB 介导的溶酶体到细胞核信号传导在衰老和寿命调节中的作用
- 批准号:
10583543 - 财政年份:2021
- 资助金额:
$ 31.5万 - 项目类别:
Mechanisms Of Er-To-Golgi Transport Of Lysosomal Enzymes
溶酶体酶从 Er 到高尔基体的转运机制
- 批准号:
10345430 - 财政年份:2019
- 资助金额:
$ 31.5万 - 项目类别:
Mechanisms Of Er-To-Golgi Transport Of Lysosomal Enzymes
溶酶体酶从 Er 到高尔基体的转运机制
- 批准号:
10094001 - 财政年份:2019
- 资助金额:
$ 31.5万 - 项目类别:
Modulation of lysosomal function for the treatment of neuronal ceroid lipofuscino
调节溶酶体功能治疗神经元蜡样脂褐质
- 批准号:
9103210 - 财政年份:2012
- 资助金额:
$ 31.5万 - 项目类别:
Modulation of lysosomal function for the treatment of Batten disease
调节溶酶体功能治疗巴顿病
- 批准号:
10317363 - 财政年份:2012
- 资助金额:
$ 31.5万 - 项目类别:
Modulation of lysosomal function for the treatment of Batten disease
调节溶酶体功能治疗巴顿病
- 批准号:
10247068 - 财政年份:2012
- 资助金额:
$ 31.5万 - 项目类别:
Modulation of lysosomal function for the treatment of neuronal ceroid lipofuscino
调节溶酶体功能治疗神经元蜡样脂褐质
- 批准号:
8660355 - 财政年份:2012
- 资助金额:
$ 31.5万 - 项目类别:
Modulation of lysosomal function for the treatment of neuronal ceroid lipofuscino
调节溶酶体功能治疗神经元蜡样脂褐质
- 批准号:
8843982 - 财政年份:2012
- 资助金额:
$ 31.5万 - 项目类别:
相似国自然基金
温度作用下CA砂浆非线性老化蠕变性能的多尺度研究
- 批准号:12302265
- 批准年份:2023
- 资助金额:30 万元
- 项目类别:青年科学基金项目
基于波动法的叠层橡胶隔震支座老化损伤原位检测及精确评估方法研究
- 批准号:52308322
- 批准年份:2023
- 资助金额:30 万元
- 项目类别:青年科学基金项目
微纳核壳结构填充体系构建及其对聚乳酸阻燃、抗老化、降解和循环的作用机制
- 批准号:52373051
- 批准年份:2023
- 资助金额:50 万元
- 项目类别:面上项目
东北黑土中农膜源微塑料冻融老化特征及其毒性效应
- 批准号:42377282
- 批准年份:2023
- 资助金额:49 万元
- 项目类别:面上项目
高层建筑外墙保温材料环境暴露自然老化后飞火点燃机理及模型研究
- 批准号:52376132
- 批准年份:2023
- 资助金额:50 万元
- 项目类别:面上项目
相似海外基金
An Integrated Multilevel Modeling Framework for Repertoire-Based Diagnostics
用于基于指令的诊断的集成多级建模框架
- 批准号:
10165490 - 财政年份:2020
- 资助金额:
$ 31.5万 - 项目类别:
An Integrated Multilevel Modeling Framework for Repertoire-Based Diagnostics
用于基于指令的诊断的集成多级建模框架
- 批准号:
10598522 - 财政年份:2020
- 资助金额:
$ 31.5万 - 项目类别:
An Integrated Multilevel Modeling Framework for Repertoire-Based Diagnostics
用于基于指令的诊断的集成多级建模框架
- 批准号:
10910349 - 财政年份:2020
- 资助金额:
$ 31.5万 - 项目类别: