A System for FLIM Microscopy

FLIM 显微镜系统

• 批准号: 7796944
• 负责人: Roy Soberman
• 金额: $ 32.07万
• 依托单位: MASSACHUSETTS GENERAL HOSPITAL
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-04-29 至 2012-04-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7796944
• 关键词: Address; Alzheimer' s Disease; Amyloid beta-Protein; Asthma; Atherosclerosis; Biological Process; Cell Adhesion Molecules; Cell physiology; Cells; Cellular biology; Chronic; Complex; Development; Disease; Dynamin; General Hospitals; Generations; Goals; Grant; Image; Inflammation; Kidney; Kidney Diseases; Leukotrienes; Massachusetts; Measurement; Measures; Membrane; Microscope; Microscopy; Molecular Conformation; Monitor; Nerve Degeneration; Nuclear Outer Membrane; Parkinson Disease; Photons; Play; Proteins; Research Personnel; Resources; Role; Surface; System; Technology; Testing; Therapeutic; Time; base; gamma secretase; human disease; improved; instrument; interest; novel; podocyte; protein function; tool

DESCRIPTION (provided by applicant): Protein Interactions and changes in conformation govern all aspects of cellular function, and disordered protein interactions or changes in conformation lay at the basis of many human diseases ranging from the initiation of inflammation to chronic neurodegenerative and kidney diseases. Mechanisms that can accurately measure protein interactions and changes in conformation will allow the development of novel concepts of disease mechanisms and therapeutic approaches based on the understanding of basic cell functions. Time-correlated single photon counting fluorescent lifetime imaging microscopy (TCSPC-FLIM) is an approach that allows measurement of protein interactions and changes in conformation; this approach improves on much of the previous approaches, and the demand for this technology at Massachusetts General Hospital has dramatically increased over the last year, so that demand now far outpaces accessibility. The goal of this Shared Instrument Grant is to establish a System for FLIM Microscopy in the Renal Unit at Massachusetts General Hospital that will serve as a shared research resource for the study of protein function in human diseases and in basic cell biology. This system will also catalyze the interaction between investigators sharing interest in the same biological processes. Four major projects will initially use The System for FLIM Microscopy to address different aspects of protein function. In Project 1, The PI will use FLIM to monitor the interactions of proteins assembled into the leukotriene membrane synthetic complex on the inner and outer nuclear membranes to initiate inflammation in diseases that include asthma and atherosclerosis. In Project 2, Dr. M. Amin Arnaout, will exploit the ability of FLIM to monitor conformational changes in surface adhesion molecules during cell activation. In Project 3 Dr. Sanja Sever, will use FLIM to monitor protein oligomerization of the protein dynamin and probe its role in function and diseases of kidney podocytes. Finally, in Project 4, Dr. Bradley Hyman will develop and test novel tools and approaches for use and analysis of FLIM, particularly in the study of the protein interactions of gamma secretase complex that controls amyloid beta (Abeta) generation in Alzheimer's disease. Protein interactions that play a role in Parkinson's disease will also be studied, thus maximizing the capabilities of the microscope.

描述（由申请人提供）：蛋白质相互作用和构象变化控制细胞功能的各个方面，蛋白质相互作用或构象变化紊乱是许多人类疾病的基础，从炎症的发生到慢性神经退行性疾病和肾脏疾病。能够准确测量蛋白质相互作用和构象变化的机制将允许在了解基本细胞功能的基础上开发疾病机制和治疗方法的新概念。时间相关单光子计数荧光寿命成像显微镜（TCSPC-FLIM）是一种可以测量蛋白质相互作用和构象变化的方法；这种方法改进了以前的许多方法，并且麻省总医院对这项技术的需求在去年急剧增加，因此现在的需求远远超过了可及性。该共享仪器拨款的目标是在马萨诸塞州总医院肾脏病房建立一个 FLIM 显微镜系统，该系统将作为人类疾病和基础细胞生物学中蛋白质功能研究的共享研究资源。该系统还将促进对相同生物过程有共同兴趣的研究人员之间的互动。四个主要项目最初将使用 FLIM 显微镜系统来解决蛋白质功能的不同方面。在项目 1 中，PI 将使用 FLIM 监测内核膜和外核膜上白三烯膜合成复合物中组装的蛋白质的相互作用，以引发哮喘和动脉粥样硬化等疾病的炎症。在项目 2 中，M. Amin Arnaout 博士将利用 FLIM 的能力来监测细胞激活过程中表面粘附分子的构象变化。在项目 3 中，Sanja Sever 博士将使用 FLIM 监测蛋白质动力的蛋白质寡聚化，并探讨其在肾足细胞功能和疾病中的作用。最后，在项目 4 中，Bradley Hyman 博士将开发和测试用于使用和分析 FLIM 的新工具和方法，特别是在研究控制阿尔茨海默病中淀粉样蛋白 β (Abeta) 生成的 γ 分泌酶复合物的蛋白质相互作用方面。还将研究在帕金森病中发挥作用的蛋白质相互作用，从而最大限度地发挥显微镜的功能。