Early SRC activation skews cell fate from apoptosis to senescence.
Early SRC activation skews cell fate from apoptosis to senescence.
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DOI:
10.1126/sciadv.abm0756
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发表时间:
2022-04-08
期刊:
影响因子:
13.6
通讯作者:
Gorospe M
中科院分区:
文献类型:
--
作者:
Anerillas C;Herman AB;Rossi M;Munk R;Lehrmann E;Martindale JL;Cui CY;Abdelmohsen K;De S;Gorospe M
Cells responding to DNA damage implement complex adaptive programs that often culminate in one of two distinct outcomes: apoptosis or senescence. To systematically identify factors driving each response, we analyzed human IMR-90 fibroblasts exposed to increasing doses of the genotoxin etoposide and identified SRC as a key kinase contributing early to this dichotomous decision. SRC was activated by low but not high levels of etoposide. With low DNA damage, SRC-mediated activation of p38 critically promoted expression of cell survival and senescence proteins, while SRC-mediated repression of p53 prevented a rise in proapoptotic proteins. With high DNA damage, failure to activate SRC led to elevation of p53, inhibition of p38, and apoptosis. In mice exposed to DNA damage, pharmacologic inhibition of SRC prevented the accumulation of senescent cells in tissues. We propose that inhibiting SRC could be exploited to favor apoptosis over senescence in tissues to improve health outcomes. The kinase SRC emerges as an early vital driver of cell senescence in response to sublethal DNA damage.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1073/pnas.1806643115
发表时间:
2018-10-16
影响因子:
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DOI:
10.1016/j.bbamcr.2016.10.022
发表时间:
2017-06-01
影响因子:
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作者:
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影响因子:
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作者:
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