Plk1 overexpression induces chromosomal instability and suppresses tumor development.
Plk1 overexpression induces chromosomal instability and suppresses tumor development.
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PLK1的过表达诱导染色体不稳定性并抑制肿瘤的发育。
DOI:
10.1038/s41467-018-05429-5
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发表时间:
2018-08-01
影响因子:
16.6
通讯作者:
Sotillo R
中科院分区:
文献类型:
--
作者:
de Cárcer G;Venkateswaran SV;Salgueiro L;El Bakkali A;Somogyi K;Rowald K;Montañés P;Sanclemente M;Escobar B;de Martino A;McGranahan N;Malumbres M;Sotillo R
Polo-like kinase 1 (Plk1) is overexpressed in a wide spectrum of human tumors, being frequently considered as an oncogene and an attractive cancer target. However, its contribution to tumor development is unclear. Using a new inducible knock-in mouse model we report here that Plk1 overexpression results in abnormal chromosome segregation and cytokinesis, generating polyploid cells with reduced proliferative potential. Mechanistically, these cytokinesis defects correlate with defective loading of Cep55 and ESCRT complexes to the abscission bridge, in a Plk1 kinase-dependent manner. In vivo, Plk1 overexpression prevents the development of Kras-induced and Her2-induced mammary gland tumors, in the presence of increased rates of chromosome instability. In patients, Plk1 overexpression correlates with improved survival in specific breast cancer subtypes. Therefore, despite the therapeutic benefits of inhibiting Plk1 due to its essential role in tumor cell cycles, Plk1 overexpression has tumor-suppressive properties by perturbing mitotic progression and cytokinesis. PLK1 is a mitotic regulator overexpressed in cancer; however, whether this overexpression causally contributes to tumor development is unclear. Here the authors produce an inducible mouse model to overexpress PLK1 and show that actually this can act as a tumor suppressor by perturbing mitotic progression and cytokinesis.
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影响因子:
5.7
作者:
Gutteridge RE;Ndiaye MA;Liu X;Ahmad N
通讯作者:
Ahmad N
DOI:
10.1038/nrm2718
发表时间:
2009-07
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
56.9
作者:
Carlton, Jez G.;Martin-Serrano, Juan
通讯作者:
Martin-Serrano, Juan
DOI:
10.1083/jcb.201008108
发表时间:
2010-11-15
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bastos RN;Barr FA
通讯作者:
Barr FA
影响因子:
9.8
作者:
Burkard ME;Maciejowski J;Rodriguez-Bravo V;Repka M;Lowery DM;Clauser KR;Zhang C;Shokat KM;Carr SA;Yaffe MB;Jallepalli PV
通讯作者:
Jallepalli PV