Regulation of Claspin by the p38 stress-activated protein kinase protects cells from DNA damage.
Regulation of Claspin by the p38 stress-activated protein kinase protects cells from DNA damage.
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p38 应激激活蛋白激酶对 Claspin 的调节可保护细胞免受 DNA 损伤。
DOI:
10.1016/j.celrep.2022.111375
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发表时间:
2022
期刊:
影响因子:
8.8
通讯作者:
F. Posas
中科院分区:
文献类型:
--
作者:
Arnau Ulsamer;A. Martínez;Sina Bader;Sara Rodríguez;R. Freire;J. Méndez;Eulàlia de Nadal;F. Posas
Stress-activated protein kinases (SAPKs) enhance survival in response to environmental changes. In yeast, the Hog1 SAPK and Mrc1, a protein required for DNA replication, define a safeguard mechanism that allows eukaryotic cells to prevent genomic instability upon stress during S-phase. Here we show that, in mammals, the p38 SAPK and Claspin—the functional homolog of Mrc1—protect cells from DNA damage upon osmostress during S-phase. We demonstrate that p38 phosphorylates Claspin and either the mutation of the p38-phosphorylation sites in Claspin or p38 inhibition suppresses the protective role of Claspin on DNA damage. In addition, wild-type Claspin but not the p38-unphosphorylatable mutant has a protective effect on cell survival in response to cisplatin treatment. These findings reveal a role of Claspin in response to chemotherapeutic drugs. Thus, this pathway protects S-phase integrity from different insults and it is conserved from yeast to mammals.
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影响因子:
16
作者:
Rosa-Mercado NA;Zimmer JT;Apostolidi M;Rinehart J;Simon MD;Steitz JA
通讯作者:
Steitz JA
影响因子:
64.5
作者:
Hamperl S;Bocek MJ;Saldivar JC;Swigut T;Cimprich KA
通讯作者:
Cimprich KA
影响因子:
7.2
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Rhind, Nicholas;Russell, Paul
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Russell, Paul
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16
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Vilborg A;Passarelli MC;Yario TA;Tycowski KT;Steitz JA
通讯作者:
Steitz JA
影响因子:
64.5
作者:
Hamperl, Stephan;Cimprich, Karlene A.
通讯作者:
Cimprich, Karlene A.