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  Inhibition of CPAP-tubulin interaction prevents proliferation of centrosome-amplified cancer cells.

Mariappan, A., Soni, K., Schorpp, K., Zhao, F., Minakar, A., Zheng, X., et al. (2018). Inhibition of CPAP-tubulin interaction prevents proliferation of centrosome-amplified cancer cells. The EMBO Journal, In press (e99876). doi:10.15252/embj.201899876.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-A918-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-A3D3-6
Genre: Journal Article

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Mariappan, A., Author
Soni, K., Author
Schorpp, K., Author
Zhao, F., Author
Minakar, A., Author
Zheng, X., Author
Mandad, S.1, Author              
Macheleidt, I., Author
Ramani, A., Author
Kubelka, T., Author
Dawidowski, M., Author
Golfmann, K., Author
Wason, A., Author
Yang, C., Author
Simons, J., Author
Schmalz, H. G., Author
Hyman, A. A., Author
Aneja, R., Author
Ullrich, R., Author
Urlaub, H.1, Author              
Odenthal, M., AuthorBüttner, R., AuthorLi, H., AuthorSattler, M., AuthorHadian, K., AuthorGopalakrishnan, J., Author more..
Affiliations:
1Research Group of Bioanalytical Mass Spectrometry, MPI for Biophysical Chemistry, Max Planck Society, ou_578613              

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 Abstract: Centrosome amplification is a hallmark of human cancers that can trigger cancer cell invasion. To survive, cancer cells cluster amplified extra centrosomes and achieve pseudobipolar division. Here, we set out to prevent clustering of extra centrosomes. Tubulin, by interacting with the centrosomal protein CPAP, negatively regulates CPAP‐dependent peri‐centriolar material recruitment, and concurrently microtubule nucleation. Screening for compounds that perturb CPAP–tubulin interaction led to the identification of CCB02, which selectively binds at the CPAP binding site of tubulin. Genetic and chemical perturbation of CPAP–tubulin interaction activates extra centrosomes to nucleate enhanced numbers of microtubules prior to mitosis. This causes cells to undergo centrosome de‐clustering, prolonged multipolar mitosis, and cell death. 3D‐organotypic invasion assays reveal that CCB02 has broad anti‐invasive activity in various cancer models, including tyrosine kinase inhibitor (TKI)‐resistant EGFR‐mutant non‐small‐cell lung cancers. Thus, we have identified a vulnerability of cancer cells to activation of extra centrosomes, which may serve as a global approach to target various tumors, including drug‐resistant cancers exhibiting high incidence of centrosome amplification.

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Language(s): eng - English
 Dates: 2018-12-10
 Publication Status: Published online
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 Rev. Method: Peer
 Identifiers: DOI: 10.15252/embj.201899876
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Title: The EMBO Journal
Source Genre: Journal
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Pages: 24 Volume / Issue: - Sequence Number: In press (e99876) Start / End Page: - Identifier: -