Title |
CEP55 is a determinant of cell fate during perturbed mitosis in breast cancer
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Published in |
EMBO Molecular Medicine, August 2018
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DOI | 10.15252/emmm.201708566 |
Pubmed ID | |
Authors |
Murugan Kalimutho, Debottam Sinha, Jessie Jeffery, Katia Nones, Sriganesh Srihari, Winnie C Fernando, Pascal HG Duijf, Claire Vennin, Prahlad Raninga, Devathri Nanayakkara, Deepak Mittal, Jodi M Saunus, Sunil R Lakhani, J Alejandro López, Kevin J Spring, Paul Timpson, Brian Gabrielli, Nicola Waddell, Kum Kum Khanna |
Abstract |
The centrosomal protein, CEP55, is a key regulator of cytokinesis, and its overexpression is linked to genomic instability, a hallmark of cancer. However, the mechanism by which it mediates genomic instability remains elusive. Here, we showed that CEP55 overexpression/knockdown impacts survival of aneuploid cells. Loss of CEP55 sensitizes breast cancer cells to anti-mitotic agents through premature CDK1/cyclin B activation and CDK1 caspase-dependent mitotic cell death. Further, we showed that CEP55 is a downstream effector of the MEK1/2-MYC axis. Blocking MEK1/2-PLK1 signaling therefore reduced outgrowth of basal-like syngeneic and human breast tumors in in vivo models. In conclusion, high CEP55 levels dictate cell fate during perturbed mitosis. Forced mitotic cell death by blocking MEK1/2-PLK1 represents a potential therapeutic strategy for MYC-CEP55-dependent basal-like, triple-negative breast cancers. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Australia | 5 | 63% |
Germany | 1 | 13% |
Unknown | 2 | 25% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 4 | 50% |
Science communicators (journalists, bloggers, editors) | 2 | 25% |
Scientists | 1 | 13% |
Practitioners (doctors, other healthcare professionals) | 1 | 13% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 39 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 7 | 18% |
Student > Master | 7 | 18% |
Student > Ph. D. Student | 5 | 13% |
Student > Bachelor | 4 | 10% |
Professor | 3 | 8% |
Other | 5 | 13% |
Unknown | 8 | 21% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 12 | 31% |
Agricultural and Biological Sciences | 5 | 13% |
Medicine and Dentistry | 4 | 10% |
Pharmacology, Toxicology and Pharmaceutical Science | 2 | 5% |
Arts and Humanities | 1 | 3% |
Other | 5 | 13% |
Unknown | 10 | 26% |