Mitotic arrest followed by cell death in response to FZ in human NSCLC Biology Diagrams 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.
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).
Induced cell cycle arrest Biology Diagrams
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 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
For example, increased expression of mitotic arrest deficient 2 (Mad2)-interacting protein p31 comet causes cellular senescence, which is accompanied by mitotic catastrophe . Such combination of drugs causes prolonged arrest of the cell cycle in the G2/M phase, accumulation of micronuclei, and chromosomal aberrations indicative of mitotic
lncreased risk of slippage upon disengagement of the mitotic checkpoint ... Biology Diagrams
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.
