An integrated Correlative Light and Electron Microscopy (CLEM) tool, the FEI iCorr, for the UBC Bioimaging Facility

用于 UBC 生物成像设施的集成相关光电子显微镜 (CLEM) 工具 FEI iCorr

• 批准号: RTI-2017-00205
• 负责人: Wasteneys, Geoffrey
• 金额: $ 10.93万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=616594
• 关键词: integrated; Correlative; Light; Electron; Microscopy

Arguably, the fastest growing field in microscopy related imaging is a technique generally called Correlative Light and Electron Microscopy, or CLEM for short. CLEM enables imaging of the same sample with both light and electron microscopy, which is essential for elucidating structure-function relationships at different scales. This technique allows the researcher to locate specific structures such as proteins that have been tagged with fluorescent reporters, and then, by determining their exact location within the sample, to quickly locate the specific structures and obtain exquisite ultrastructural detail using transmission electron microscopy (TEM). Previously, CLEM has been both technically challenging and time consuming; the major issue being the inability to easily “re-locate” the same area in the electron microscope that was imaged with the light microscope. This project proposes to purchase the FEI iCorr, a unique light (fluorescence) microscope that will be integrated with an existing transmission electron microscope. The iCorr allows researchers to seamlessly image the same sample with both fluorescence microscopy and transmission electron microscopy without having to transfer between microscopes, thusly, removing both the technical challenges and vast time consumption of traditional CLEM. The FEI iCorr requires an FEI Tecnai TEM to function properly. The proposed FEI iCorr will be integrated onto an existing FEI Tecnai TEM located within the UBC Bioimaging Facility. This tool will become indispensable for groups studying: mechanisms that drive plant cell development; the structure and function of cellular components in pest-resistant plants; host-pathogen interactions; the development and maintenance of the blood-brain barrier; as well as groups studying new iridescent materials made from cellulose and chitin (both naturally occurring) nanocrystals, and how to determine the cellular localization of newly developed fluorescent nanoparticles. The necessity of this important tool is highlighted with the amount of financial support from various institutional groups this proposal has received. The research departments that will immediately benefit from the installation of the FEI iCorr include Botany, Zoology, Microbiology and Immunology, Chemistry, and the Michael Smith Labs. As a result, each department has committed financial contributions toward the purchase of the FEI iCorr. Due to the variety of research groups requiring access to the FEI iCorr and the subsequent important need for this imaging tool at the University of British Columbia, both the institution as well as the Faculty of Science have committed significant finances to this project.

可以说，在显微镜相关成像中增长最快的领域是一种通常称为相关光和电子显微镜的技术，或简称为CLEM。CLEM能够用光学显微镜和电子显微镜对同一样品进行成像，这对于阐明不同尺度的结构-功能关系至关重要。这种技术允许研究人员定位特定的结构，例如已经用荧光报告分子标记的蛋白质，然后通过确定它们在样品中的确切位置，快速定位特定的结构，并使用透射电子显微镜（TEM）获得精致的超微结构细节。 以前，CLEM在技术上具有挑战性和耗时;主要问题是无法轻松地“重新定位”与光学显微镜成像的电子显微镜中的相同区域。该项目拟购买FEI iCorr，这是一种独特的光学（荧光）显微镜，将与现有的透射电子显微镜集成。iCorr允许研究人员使用荧光显微镜和透射电子显微镜对同一样品进行无缝成像，而无需在显微镜之间进行转移，从而消除了传统CLEM的技术挑战和大量时间消耗。 FEI iCorr需要FEI Tecnai TEM才能正常工作。拟议的FEI iCorr将集成到位于UBC生物成像设施内的现有FEI Tecnai TEM中。 这一工具将成为不可或缺的小组研究：驱动植物细胞发育的机制;抗虫害植物细胞成分的结构和功能;宿主-病原体相互作用;血脑屏障的发展和维持;以及研究由纤维素和甲壳素制成的新型彩虹色材料的小组（两者都是天然存在的）纳米晶体，以及如何确定新开发的荧光纳米颗粒的细胞定位。 这一建议得到了各机构团体的大量财政支持，这突出说明了这一重要工具的必要性。将立即从FEI iCorr的安装中受益的研究部门包括植物学，动物学，微生物学和免疫学，化学和Michael Smith实验室。因此，每个部门都承诺为购买FEI iCorr提供财政捐助。由于需要访问FEI iCorr的各种研究小组以及不列颠哥伦比亚省大学对该成像工具的后续重要需求，该机构以及科学学院都为该项目投入了大量资金。