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2015 ; 5
(3
): 1912-37
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Targeting the Checkpoint to Kill Cancer Cells
#MMPMID26295265
Benada J
; Macurek L
Biomolecules
2015[Aug]; 5
(3
): 1912-37
PMID26295265
show ga
Cancer treatments such as radiotherapy and most of the chemotherapies act by
damaging DNA of cancer cells. Upon DNA damage, cells stop proliferation at cell
cycle checkpoints, which provides them time for DNA repair. Inhibiting the
checkpoint allows entry to mitosis despite the presence of DNA damage and can
lead to cell death. Importantly, as cancer cells exhibit increased levels of
endogenous DNA damage due to an excessive replication stress, inhibiting the
checkpoint kinases alone could act as a directed anti-cancer therapy. Here, we
review the current status of inhibitors targeted towards the checkpoint effectors
and discuss mechanisms of their actions in killing of cancer cells.