New approaches for understanding lipid movement in health and disease

了解健康和疾病中脂质运动的新方法

基本信息

  • 批准号:
    10613963
  • 负责人:
  • 金额:
    $ 232.58万
  • 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:
    2019-05-01 至 2025-04-30
  • 项目状态:
    未结题

项目摘要

PPG Title: New Approaches for Understanding Lipid Movement in Health and Disease SUMMARY/ABSTRACT Our Program Project Grant (PPG) focuses on lipid metabolism and transport, with the goal of defining mechanisms for metabolic and cardiovascular disease. Our PPG team has made seminal discoveries in lipid metabolism and transport. We discovered an endothelial cell protein, GPIHBP1, that transports lipoprotein lipase (LPL) to the capillary lumen and stabilizes the structure of LPL. Recently, we defined the structure of the GPIHBP1–LPL complex, providing fresh insights into mutations causing hypertriglyceridemia and opening the door to understanding mechanisms that regulate intravascular lipolysis. In the realm of cholesterol metabolism, our PPG discovered that macrophages release, by plasma membrane (PM) budding, particles that are enriched in cholesterol. Our PPG uncovered a link between inflammatory signaling and cholesterol metabolism in macrophages, and we identified a new protein, Aster-B, that is critical for cholesterol movement between the PM and the endoplasmic reticulum (ER). A deficiency of Aster-B impairs cholesterol movement to the ER, causing a striking upregulation of lipid biosynthetic genes. These discoveries, all relevant to the pathogenesis of atherosclerosis, were utterly dependent on collaborations between our PPG leaders and the advanced molecular, biochemical, and imaging capabilities in their laboratories. As we look to the future, we will dig deeper into the molecules and mechanisms that we have uncovered. In project 1, Drs. Young and his PPG colleagues will use biochemical and biophysical tools to elucidate the functions of the LPL–GPIHBP1 complex, including the role of GPIHBP1’s acidic domain in stabilizing LPL activity and capturing LPL within the subendothelial spaces. They will also study, with electron microscopy and NanoSIMS imaging, the budding of cholesterol-rich particles from the macrophage PM. They will define the composition of the particles and explore their relevance to reverse cholesterol transport. In project 2, Dr. Bensinger and coworkers will determine how inflammatory signals modulate the lipidome of macrophages. They will also define mechanisms by which alterations in cholesterol homeostasis affect STING signaling and the impact of the STING pathway on dyslipidemia, inflammation, and atherogenesis. In Project 3, Dr. Tontonoz and his PPG coworkers will explore the role of Aster-B in cholesterol transport, efflux, and esterification and elucidate the function of Aster-B in sterol transport in vivo. They will also assess the contribution of the “macrophage Aster pathway” to atherosclerosis and screen for additional proteins required for the nonvesicular transport of cholesterol within cells. The three component projects will be supported by a single scientific core, led by Dr. Loren Fong and colleagues. They will produce recombinant proteins, provide advanced microscopy services, including NanoSIMS imaging of lipids. They will also work with Dr. Keriann Backus to provide chemical proteomics for investigating lipid metabolism. Our PPG is confident in success because we have exciting hypotheses and we work as a team at both scientific and technical levels.
PPG标题:了解健康和疾病中脂质运动的新方法 总结/摘要 我们的计划项目资助(PPG)专注于脂质代谢和运输,目标是定义 代谢和心血管疾病的机制。我们的PPG团队在脂质方面取得了开创性的发现, 代谢和运输。我们发现了一种内皮细胞蛋白GPIHBP 1,它可以转运脂蛋白脂酶 (LPL)并稳定LPL的结构。最近,我们定义了 GPIHBP 1-LPL复合物,为导致高甘油三酯血症的突变提供了新的见解并打开了 了解血管内脂解调节机制的大门。在胆固醇代谢领域, 我们的PPG发现,巨噬细胞通过质膜(PM)出芽释放富集的颗粒, 胆固醇。我们的PPG揭示了炎症信号和胆固醇代谢之间的联系, 我们发现了一种新的蛋白质,Aster-B,它对PM之间的胆固醇运动至关重要。 和内质网(ER)。缺乏Aster-B会损害胆固醇向ER的移动, 脂质生物合成基因的显著上调这些发现都与 动脉粥样硬化,完全依赖于我们的PPG领导者和先进的 分子、生物化学和成像能力。当我们展望未来时, 我们发现的分子和机制。在项目1中,杨博士和他的PPG同事 将使用生物化学和生物物理学工具来阐明LPL-GPIHBP 1复合物的功能,包括 GPIHBP 1的酸性结构域在稳定LPL活性和在内皮下空间内捕获LPL中的作用。 他们还将利用电子显微镜和NanoSIMS成像技术研究富含胆固醇的颗粒的萌芽 从巨噬细胞PM。他们将定义粒子的组成,并探索它们与逆转 胆固醇转运在项目2中,本辛格博士和同事将确定炎症信号 调节巨噬细胞的脂质体。他们还将确定胆固醇变化的机制, 稳态影响STING信号传导以及STING途径对血脂异常、炎症和 动脉粥样硬化在项目3中,Tontonoz博士和他的PPG同事将探索Aster-B在胆固醇中的作用。 转运、外排和酯化作用,阐明了Aster-B在体内固醇转运中的功能。他们还将 评估“巨噬细胞Aster途径”对动脉粥样硬化的贡献并筛选其他蛋白质 细胞内胆固醇的非囊泡运输所需的。将支持三个组成项目 由Loren Fong博士及其同事领导的一个科学核心。它们将产生重组蛋白, 先进的显微镜服务,包括脂质的NanoSIMS成像。他们还将与Keriann博士合作 为研究脂质代谢提供化学蛋白质组学。我们的PPG对成功充满信心 因为我们有令人兴奋的假设,我们作为一个团队在科学和技术层面上工作。

项目成果

期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Profiling of mouse macrophage lipidome using direct infusion shotgun mass spectrometry.
  • DOI:
    10.1016/j.xpro.2020.100235
  • 发表时间:
    2021-03-19
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Hsieh WY;Williams KJ;Su B;Bensinger SJ
  • 通讯作者:
    Bensinger SJ
Selective Aster inhibitors distinguish vesicular and nonvesicular sterol transport mechanisms.
选择性 Aster 抑制剂区分囊泡和非囊泡甾醇转运机制。
{{ 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 }}

Stephen G. Young其他文献

Genetic abnormalities in apolipoprotein B.
载脂蛋白 B 基因异常。
APOA5 deficiency causes hypertriglyceridemia by reducing amounts of lipoprotein lipase in capillaries
APOA5 缺乏症通过减少毛细血管中脂蛋白脂肪酶的量导致高甘油三酯血症。
  • DOI:
    10.1016/j.jlr.2024.100578
  • 发表时间:
    2024-07-01
  • 期刊:
  • 影响因子:
    4.100
  • 作者:
    Ye Yang;Robert J. Konrad;Michael Ploug;Stephen G. Young
  • 通讯作者:
    Stephen G. Young
Absence of VLDL secretion does not affect α-tocopherol content in peripheral tissues
  • DOI:
    10.1194/jlr.m600125-jlr200
  • 发表时间:
    2006-08-01
  • 期刊:
  • 影响因子:
  • 作者:
    Kaori Minehira-Castelli;Scott W. Leonard;Quinn M. Walker;Maret G. Traber;Stephen G. Young
  • 通讯作者:
    Stephen G. Young
Using genetically modified mice to study apolipoprotein B.
使用转基因小鼠研究载脂蛋白 B。
Apolipoprotein B gene expression in a series of human apolipoprotein B transgenic mice generated with recA-assisted restriction endonuclease cleavage-modified bacterial artificial chromosomes. An intestine-specific enhancer element is located between 54 and 62 kilobases 5' to the structural gene.
用recA辅助限制性内切酶切割修饰的细菌人工染色体产生的一系列人载脂蛋白B转基因小鼠中的载脂蛋白B基因表达。
  • DOI:
  • 发表时间:
    1998
  • 期刊:
  • 影响因子:
    4.8
  • 作者:
    L. B. Nielsen;Debra Kahn;Thomas Duell;H. G. Weier;S. Taylor;Stephen G. Young
  • 通讯作者:
    Stephen G. Young

Stephen G. Young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('Stephen G. Young', 18)}}的其他基金

New approaches for understanding lipid movement in health and disease
了解健康和疾病中脂质运动的新方法
  • 批准号:
    10161848
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
Deciphering Mechanisms for Triglyceride and Cholesterol Transport
甘油三酯和胆固醇运输的破译机制
  • 批准号:
    10161851
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
Deciphering Mechanisms for Triglyceride and Cholesterol Transport
甘油三酯和胆固醇运输的破译机制
  • 批准号:
    10397413
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
Understanding the Influence of Lipid Homeostasis on T cell Function
了解脂质稳态对 T 细胞功能的影响
  • 批准号:
    10336183
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
Administration
行政
  • 批准号:
    10613964
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
Deciphering Mechanisms for Triglyceride and Cholesterol Transport
甘油三酯和胆固醇运输的破译机制
  • 批准号:
    10613968
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
New approaches for understanding lipid movement in health and disease
了解健康和疾病中脂质运动的新方法
  • 批准号:
    9919622
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
New approaches for understanding lipid movement in health and disease
了解健康和疾病中脂质运动的新方法
  • 批准号:
    10397409
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
Administration
行政
  • 批准号:
    10161849
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:
Administration
行政
  • 批准号:
    10397410
  • 财政年份:
    2019
  • 资助金额:
    $ 232.58万
  • 项目类别:

相似海外基金

RII Track-4:NSF: From the Ground Up to the Air Above Coastal Dunes: How Groundwater and Evaporation Affect the Mechanism of Wind Erosion
RII Track-4:NSF:从地面到沿海沙丘上方的空气:地下水和蒸发如何影响风蚀机制
  • 批准号:
    2327346
  • 财政年份:
    2024
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Standard Grant
BRC-BIO: Establishing Astrangia poculata as a study system to understand how multi-partner symbiotic interactions affect pathogen response in cnidarians
BRC-BIO:建立 Astrangia poculata 作为研究系统,以了解多伙伴共生相互作用如何影响刺胞动物的病原体反应
  • 批准号:
    2312555
  • 财政年份:
    2024
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Standard Grant
How Does Particle Material Properties Insoluble and Partially Soluble Affect Sensory Perception Of Fat based Products
不溶性和部分可溶的颗粒材料特性如何影响脂肪基产品的感官知觉
  • 批准号:
    BB/Z514391/1
  • 财政年份:
    2024
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Training Grant
Graduating in Austerity: Do Welfare Cuts Affect the Career Path of University Students?
紧缩毕业:福利削减会影响大学生的职业道路吗?
  • 批准号:
    ES/Z502595/1
  • 财政年份:
    2024
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Fellowship
Insecure lives and the policy disconnect: How multiple insecurities affect Levelling Up and what joined-up policy can do to help
不安全的生活和政策脱节:多种不安全因素如何影响升级以及联合政策可以提供哪些帮助
  • 批准号:
    ES/Z000149/1
  • 财政年份:
    2024
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Research Grant
感性個人差指標 Affect-X の構築とビスポークAIサービスの基盤確立
建立个人敏感度指数 Affect-X 并为定制人工智能服务奠定基础
  • 批准号:
    23K24936
  • 财政年份:
    2024
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
How does metal binding affect the function of proteins targeted by a devastating pathogen of cereal crops?
金属结合如何影响谷类作物毁灭性病原体靶向的蛋白质的功能?
  • 批准号:
    2901648
  • 财政年份:
    2024
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Studentship
ERI: Developing a Trust-supporting Design Framework with Affect for Human-AI Collaboration
ERI:开发一个支持信任的设计框架,影响人类与人工智能的协作
  • 批准号:
    2301846
  • 财政年份:
    2023
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Standard Grant
Investigating how double-negative T cells affect anti-leukemic and GvHD-inducing activities of conventional T cells
研究双阴性 T 细胞如何影响传统 T 细胞的抗白血病和 GvHD 诱导活性
  • 批准号:
    488039
  • 财政年份:
    2023
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Operating Grants
How motor impairments due to neurodegenerative diseases affect masticatory movements
神经退行性疾病引起的运动障碍如何影响咀嚼运动
  • 批准号:
    23K16076
  • 财政年份:
    2023
  • 资助金额:
    $ 232.58万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了