Changes in the Cytoskeleton during Cell Division
The onset of cell division brings about greater changes in the structure of the cytoskeleton than occur at any other point in the cell cycle. Microtubules and bundles of actin-containing filaments are disassembled into subunits or small oligomers, ready for use in building new structures. Many intermediate filaments, on the other hand, do not disassemble but collapse into a meshwork closely associated with the nuclear membrane. They appear to have no active role in nuclear division or cytokinesis but are passively shared between the daughter cells.
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Original papers providing more detail
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