Firstly, mitotic cell rounding in combination with maintenance of apical cell-cell junctions appears to be necessary for correct mitotic spindle alignment, so that daughter cells divide parallel to the tissue plane, thus sharing apical surface to maintain tissue homeostasis [REF].
Thirdly, mitotic rounding has been shown to be important to generate sufficient space and appropriate geometry for proper mitotic spindle function, which is necessary for timely and accurate progression through mitosis [REF].