The Living Dead Mitochondria and Metabolic Arrest Biology Diagrams Mitotic arrest is defined as the difference between mitotic exit and mitotic entry. Central panel: barplots with the percentages of the different classes of Clb2 behavior in wild-type or GAL1-Mad2 cells arrested indefinitely in nocodazole. For the definition of the cell classes see S2A Fig. Right panel: cumulative distribution of APC/C
In turn p21 can cause G1 arrest, whereas Bax can cause apoptosis II. Also, I discuss that mitotic depletion of short-lived proteins collaborates with mitotic phosphorylation of p53, Bcl-2 and BclxL. Finally this article clarifies notions of apoptosis-prone and -reluctant cells and mitotic catastrophe.
Mitotic arrest and cell fate: why and how mitotic inhibition of ... Biology Diagrams
Mitotic arrest induced by antimitotic drugs can cause apoptosis or p53-dependent cell cycle arrest. It can also cause DNA damage, but the relationship between these events has been unclear. Live, single-cell imaging in human cancer cells responding to an antimitotic kinesin-5 inhibitor and additiona โฆ While recovery from transient drug treatment and mitotic progression with extra centrosomes is associated with some degree of mitotic arrest , possibly predisposing cells to telomeric DNA damage as described above, premature satisfaction or inhibition of the SAC also causes lagging chromosomes and micronucleus formation without detectable
In this cell line, the ablation of the 14-3-3-ฯ locus also abolishes the G2 arrest and causes mitotic catastrophe linked to the premature entry of cyclin B/Cdk1 into the nucleus (Chan et al., 1999).
A link between mitotic defects and mitotic catastrophe: detection and ... Biology Diagrams
Prolonged mitotic arrest with the same drugs causes apoptosis during mitotic arrest in apoptosis-sensitive cell lines; in less sensitive lines, cells undergo slippage without division into tetraploid G1, which may be followed by p53-dependent arrest, apoptosis, or another round of mitosis (Rieder and Maiato, 2004; Gascoigne and Taylor, 2008
Microtubule inhibitors such as paclitaxel, vincristine and nocodazole cause mitotic arrest. Cell fate determination during mitotic arrest may seem like a puzzle. If a cell cannot exit mitosis, 1it undergoes apoptosis.-4 On the other hand, apoptosis may require mitotic 2,5,6exit. Apoptosis is often p53-independent but can be p53-dependent.1,6-12 Suppression of mitotic telomere damage by enhanced expression of TRF2, or the inhibition of either caspase-3/7 or DNA-PK during mitotic arrest, promotes subsequent cell survival.
