High-throughput three-dimensional imaging cytometer for subnuclear foci quantification (Conference Presentation)

Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XVIII(2020)

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摘要
We propose a high-throughput 3D imaging cytometer for fast quantification of DNA double strand break (DSB) frequency in cells for DNA damage study. With structured illumination enabled depth contrast and a fast focus tunable lens enabled scanning, this system generates a three-dimensional stack of clustered nuclei γH2AX foci with submicron resolution at a speed of 800 cells/second. Moreover, we unify the stack construction with the deep neural network, which largely improve quantification accuracy as well as the processing speed. Compared to previous 2D imaging approach, the addition of z-resolution in our 3D method provides an extra dimension of contrast and thus allows for more accurate DNA DSB quantification.
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