Highly Multiplexed, Super-Resolution Imaging Of T Cells Using Madstorm
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS(2017)
摘要
Imaging heterogeneous cellular structures using single molecule localization microscopy has been hindered by inadequate localization precision and multiplexing ability. Using fluorescent nano-diamond fiducial markers, we describe the drift correction and alignment procedures required to obtain high precision in single molecule localization microscopy. In addition, a new multiplexing strategy, madSTORM, is described in which multiple molecules are targeted in the same cell using sequential binding and elution of fluorescent antibodies. madSTORM is demonstrated on an activated T cell to visualize the locations of different components within a membrane-bound, multi-protein structure called the T cell receptor microcluster. In addition, application of madSTORM as a general tool for visualization of multi-protein structures is discussed.
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关键词
Immunology,Issue 124,Single molecule localization microscopy,stochastic optical reconstruction microscopy,multiplexed imaging,fluorescent nano-diamond,microclusters
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