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Live cell interferometry quantifies dynamics of biomass partitioning during cytokinesis.


ABSTRACT: The equal partitioning of cell mass between daughters is the usual and expected outcome of cytokinesis for self-renewing cells. However, most studies of partitioning during cell division have focused on daughter cell shape symmetry or segregation of chromosomes. Here, we use live cell interferometry (LCI) to quantify the partitioning of daughter cell mass during and following cytokinesis. We use adherent and non-adherent mouse fibroblast and mouse and human lymphocyte cell lines as models and show that, on average, mass asymmetries present at the time of cleavage furrow formation persist through cytokinesis. The addition of multiple cytoskeleton-disrupting agents leads to increased asymmetry in mass partitioning which suggests the absence of active mass partitioning mechanisms after cleavage furrow positioning.

SUBMITTER: Zangle TA 

PROVIDER: S-EPMC4274116 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Live cell interferometry quantifies dynamics of biomass partitioning during cytokinesis.

Zangle Thomas A TA   Teitell Michael A MA   Reed Jason J  

PloS one 20141222 12


The equal partitioning of cell mass between daughters is the usual and expected outcome of cytokinesis for self-renewing cells. However, most studies of partitioning during cell division have focused on daughter cell shape symmetry or segregation of chromosomes. Here, we use live cell interferometry (LCI) to quantify the partitioning of daughter cell mass during and following cytokinesis. We use adherent and non-adherent mouse fibroblast and mouse and human lymphocyte cell lines as models and sh  ...[more]

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