Caspase-2 regulates S-phase cell cycle events to protect from DNA damage accumulation independent of apoptosis.
Caspase-2 regulates S-phase cell cycle events to protect from DNA damage accumulation independent of apoptosis.
复制标题
caspase-2调节S期细胞周期事件,以防止与凋亡无关的DNA损伤积累。
DOI:
10.1038/s41388-021-02085-w
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发表时间:
2022-01
期刊:
影响因子:
8
通讯作者:
Bouchier-Hayes L
中科院分区:
文献类型:
--
作者:
Boice AG;Lopez KE;Pandita RK;Parsons MJ;Charendoff CI;Charaka V;Carisey AF;Pandita TK;Bouchier-Hayes L
In addition to its classical role in apoptosis, accumulating evidence suggests that caspase-2 has non-apoptotic functions, including regulation of cell division. Loss of caspase-2 is known to increase proliferation rates but how caspase-2 is regulating this process is currently unclear. We show that caspase-2 is activated in dividing cells in G1-phase of the cell cycle. In the absence of caspase-2, cells exhibit numerous S-phase defects including delayed exit from S-phase, defects in repair of chromosomal aberrations during S-phase, and increased DNA damage following S-phase arrest. In addition, caspase-2-deficient cells have a higher frequency of stalled replication forks, decreased DNA fiber length, and impeded progression of DNA replication tracts. This indicates that caspase-2 protects from replication stress and promotes replication fork protection to maintain genomic stability. These functions are independent of the pro-apoptotic function of caspase-2 because blocking caspase-2-induced cell death had no effect on cell division, DNA damage-induced cell cycle arrest, or DNA damage. Thus, our data supports a model where caspase-2 regulates cell cycle and DNA repair events to protect from the accumulation of DNA damage independently of its pro-apoptotic function.
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影响因子:
8.8
作者:
Gundry MC;Brunetti L;Lin A;Mayle AE;Kitano A;Wagner D;Hsu JI;Hoegenauer KA;Rooney CM;Goodell MA;Nakada D
通讯作者:
Nakada D
影响因子:
30.8
作者:
Falck, J;Petrini, JHJ;Bartek, J
通讯作者:
Bartek, J
影响因子:
4.8
作者:
Gao, ZH;Shao, YF;Jiang, XJ
通讯作者:
Jiang, XJ
DOI:
10.1073/pnas.96.7.3745
发表时间:
1999-03-30
影响因子:
11.1
作者:
Brown, AL;Lee, CH;Chung, JH
通讯作者:
Chung, JH
影响因子:
8
作者:
Chaturvedi, P;Eng, WK;Zhou, BBS
通讯作者:
Zhou, BBS