Abstract
Centromere-associated protein-E (CENP-E) is a kinetochore-associated mitotic kinesin that is thought to function as the key receptor responsible for mitotic checkpoint signal transduction after interaction with spindle microtubules. We have identified GSK923295, an allosteric inhibitor of CENP-E kinesin motor ATPase activity, and mapped the inhibitor binding site to a region similar to that bound by loop-5 inhibitors of the kinesin KSP/Eg5. Unlike these KSP inhibitors, which block release of ADP and destabilize motor-microtubule interaction, GSK923295 inhibited release of inorganic phosphate and stabilized CENP-E motor domain interaction with microtubules. Inhibition of CENP-E motor activity in cultured cells and tumor xenografts caused failure of metaphase chromosome alignment and induced mitotic arrest, indicating that tight binding of CENP-E to microtubules is insufficient to satisfy the mitotic checkpoint. Consistent with genetic studies in mice suggesting that decreased CENP-E function can have a tumor-suppressive effect, inhibition of CENP-E induced tumor cell apoptosis and tumor regression.
Bibliography
Wood, K. W., Lad, L., Luo, L., Qian, X., Knight, S. D., Nevins, N., Brejc, K., Sutton, D., Gilmartin, A. G., Chua, P. R., Desai, R., Schauer, S. P., McNulty, D. E., Annan, R. S., Belmont, L. D., Garcia, C., Lee, Y., Diamond, M. A., Faucette, L. F., ⦠Jackson, J. R. (2010). Antitumor activity of an allosteric inhibitor of centromere-associated protein-E. Proceedings of the National Academy of Sciences, 107(13), 5839â5844.
Authors
35
- Kenneth W. Wood (first)
- Latesh Lad (additional)
- Lusong Luo (additional)
- Xiangping Qian (additional)
- Steven D. Knight (additional)
- Neysa Nevins (additional)
- Katjusa Brejc (additional)
- David Sutton (additional)
- Aidan G. Gilmartin (additional)
- Penelope R. Chua (additional)
- Radhika Desai (additional)
- Stephen P. Schauer (additional)
- Dean E. McNulty (additional)
- Roland S. Annan (additional)
- Lisa D. Belmont (additional)
- Carlos Garcia (additional)
- Yan Lee (additional)
- Melody A. Diamond (additional)
- Leo F. Faucette (additional)
- Michele Giardiniere (additional)
- ShuYun Zhang (additional)
- Chiu-Mei Sun (additional)
- Justin D. Vidal (additional)
- Serge Lichtsteiner (additional)
- William D. Cornwell (additional)
- Joel D. Greshock (additional)
- Richard F. Wooster (additional)
- Jeffrey T. Finer (additional)
- Robert A. Copeland (additional)
- Pearl S. Huang (additional)
- David J. Morgans (additional)
- Dashyant Dhanak (additional)
- Gustave Bergnes (additional)
- Roman Sakowicz (additional)
- Jeffrey R. Jackson (additional)
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Dates
Type | When |
---|---|
Created | 15 years, 6 months ago (Feb. 18, 2010, 10:15 p.m.) |
Deposited | 3 years, 4 months ago (April 12, 2022, 6:38 p.m.) |
Indexed | 2 weeks, 3 days ago (Aug. 19, 2025, 6 a.m.) |
Issued | 15 years, 6 months ago (Feb. 18, 2010) |
Published | 15 years, 6 months ago (Feb. 18, 2010) |
Published Online | 15 years, 6 months ago (Feb. 18, 2010) |
Published Print | 15 years, 5 months ago (March 30, 2010) |
@article{Wood_2010, title={Antitumor activity of an allosteric inhibitor of centromere-associated protein-E}, volume={107}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0915068107}, DOI={10.1073/pnas.0915068107}, number={13}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Wood, Kenneth W. and Lad, Latesh and Luo, Lusong and Qian, Xiangping and Knight, Steven D. and Nevins, Neysa and Brejc, Katjusa and Sutton, David and Gilmartin, Aidan G. and Chua, Penelope R. and Desai, Radhika and Schauer, Stephen P. and McNulty, Dean E. and Annan, Roland S. and Belmont, Lisa D. and Garcia, Carlos and Lee, Yan and Diamond, Melody A. and Faucette, Leo F. and Giardiniere, Michele and Zhang, ShuYun and Sun, Chiu-Mei and Vidal, Justin D. and Lichtsteiner, Serge and Cornwell, William D. and Greshock, Joel D. and Wooster, Richard F. and Finer, Jeffrey T. and Copeland, Robert A. and Huang, Pearl S. and Morgans, David J. and Dhanak, Dashyant and Bergnes, Gustave and Sakowicz, Roman and Jackson, Jeffrey R.}, year={2010}, month=feb, pages={5839–5844} }