Mitotic orientation in three dimensions determined from multiple projections
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Updated: Oct 25, 2026

Live Imaging of Mitosis in the Developing Mouse Embryonic Cortex
Published on: June 4, 2014
1Department of Anatomy, University of Toronto, Ontario, Canada.
Abstract:
The three-dimensional orientation of mitoses in mouse small intestinal crypts of Lieberkuhn was determined from multiple projections of the mitotic figures in whole mounts of isolated intestinal crypts. We found evidence of a significant orientational bias for mitoses whose daughter cells would be added along the long axis of the crypt, and thus conform to the maintenance of the cylindrical shape of the intestinal crypt. However, we also observed many mitoses whose progeny must be rearranged if the simple cylindrical shape of the intestinal crypt is to be maintained. Our results indicate that the ultimate behavior of progeny cells and hence of local tissue form may not strictly depend on the orientation of mitosis. The methods presented may also be used in the study of mitotic orientation in other tissues.
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