Abstract
Real-time imaging coupled with a permeabilized cell system presents a very versatile platform to visualize the dynamic and intricate nature of nuclear envelope breakdown, one of the major morphological changes of mitosis. Here, we describe such a strategy in which the plasma membrane of cells expressing fluorescently tagged nucleoporin POM121 and Histone H2B is permeabilized with digitonin. These cells are then incubated with mitotic Xenopus egg extract to create conditions that recapitulate the major events of mitotic nuclear remodeling seen in live-cell imaging, providing the opportunity to probe mechanisms and pathways that coordinate nuclear disassembly.
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Acknowledgements
We thank Drs. Don Ayer, Einar Hallberg, Mary Dasso, and Maureen Powers for reagents and Drs. Mark Smith and Chris Rodesch and the University of Utah Fluorescence Microscopy Core Facility for assistance. Core facilities are supported in part by a grant (P30 CA042014) awarded to the Huntsman Cancer Institute. This work was funded by the National Institute of Health (grant R01 GM61275) and the Huntsman Cancer Foundation (to K.S.U.). D.R.M. is supported by an NIH Developmental Biology Training Grant (5T32 HD07491).
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Shankaran, S.S., Mackay, D.R., Ullman, K.S. (2012). A Time-Lapse Imaging Assay to Study Nuclear Envelope Breakdown. In: Taatjes, D., Roth, J. (eds) Cell Imaging Techniques. Methods in Molecular Biology, vol 931. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-056-4_6
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DOI: https://doi.org/10.1007/978-1-62703-056-4_6
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Publisher Name: Humana Press, Totowa, NJ
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