Label-Free Cell-Resolved Metabolomics for Tumor Microscopy

总结 人们普遍认为，肿瘤所采用的能量产生和使用策略可以提供重要的诊断， 和治疗机会。然而，直接和微观可视化这些策略的工具还没有 因为大多数代谢物不能被标记用于显微镜检查。该项目使用最近开发的 相干拉曼成像方法，可以快速获得这些未标记的分子振动特征， 代谢物，可能使它们可见。如果该项目成功，它将产生一个显微镜， 癌症研究人员和临床医生，第一次，可视化代谢活动在完整的肿瘤，对细胞的 这将有助于发现新的治疗和诊断方法。 开发这样一个工具是一项重大挑战。该项目将在我们的第一个 目的是通过开发我们成像方法的详细理论模型，并针对简化的艾德和 一系列控制良好的组织模拟实验这种双模型方法将使我们能够发现 实现必要的仪器灵敏度和可靠性的最有效途径。在第二个目标中，我们测试 在实际组织和细胞培养中使用显微镜，独立分析代谢物含量 在BCARS。

Summary It is widely held that energy creation and use strategies employed by tumors may provide important diagnostic and therapeutic opportunities. However, tools to directly and microscopically visualize these strategies do not yet exist because most of the metabolites cannot be labeled for microscopy. This project uses recently developed a coherent Raman imaging method that can rapidly obtain molecular vibration signatures of these unlabeled metabolites, potentially making them visible. If the project is successful, it will yeild a microscope that will allow cancer researchers and clinicians to, for the first time, visualize metabolic activity in intact tumors, on a cell-by-cell basis, and should facilitate discovery of new therapies and diagnostics. Developing such an instrument presents significant challenges. The project will approach these in our first Aim by developing a detailed theoretical model of our imaging approach, and testing it against a simplified and well-controlled series of experimental tissue mimics. This dual model approach will allow us to discover the most effective path to realizing the necessary instrument sensitivity and reliability. In the second Aim we test the microscope in actual tissues and cell culture that is independently analyzed for content of metabolites measure by BCARS.