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Xie H, Lee MH, Zhu F, Reddy K, Peng C, Li Y, Lim DY, Kim DJ, Li X, Kang S, Li H, Ma W, Lubet RA, Ding J, Bode AM, Dong Z. Identification of an Aurora kinase inhibitor specific for the Aurora B isoform. Cancer Res 2013; 73:716-24. [PMID: 23117881 PMCID: PMC3549034 DOI: 10.1158/0008-5472.can-12-2784] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aurora kinases play an important role in chromosome alignment, segregation, and cytokinesis during mitosis. In the present study, we used a ligand docking method to explore the novel scaffold of potential Aurora B inhibitors. One thousand compounds from our in-house compound library were screened against the Aurora B structure and one compound, (E)-3-((E)-4-(benzo[d][1,3]dioxol-5-yl)-2-oxobut-3-en-1-ylidene)indolin-2-one (designated herein as HOI-07) was selected for further study. HOI-07 potently inhibited in vitro Aurora B kinase activity in a dose-dependent manner, without obvious inhibition of another 49 kinases, including Aurora A. This compound suppressed Aurora B kinase activity in lung cancer cells, evidenced by the inhibition of the phosphorylation of histone H3 on Ser10 in a dose- and time-dependent manner. This inhibition resulted in apoptosis induction, G(2)-M arrest, polyploidy cells, and attenuation of cancer cell anchorage-independent growth. Moreover, knocking down the expression of Aurora B effectively reduced the sensitivity of cancer cells to HOI-07. Results of an in vivo xenograft mouse study showed that HOI-07 treatment effectively suppressed the growth of A549 xenografts, without affecting the body weight of mice. The expression of phospho-histone H3, phospho-Aurora B, and Ki-67 was also suppressed in the HOI-07 treatment group. Taken together, we identified HOI-07 as a specific Aurora B inhibitor, which deserves further investigation.
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Affiliation(s)
- Hua Xie
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Mee-Hyun Lee
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Feng Zhu
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Kanamata Reddy
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Cong Peng
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Yan Li
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Do Young Lim
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Dong Joon Kim
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Xiang Li
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Soouk Kang
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Haitao Li
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Weiya Ma
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | | | | | - Ann M. Bode
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, Minnesota, USA
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