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Cancer Res. 2005 Apr 1;65(7):2899-905.

RNA interference targeting aurora kinase a suppresses tumor growth and enhances the taxane chemosensitivity in human pancreatic cancer cells.

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  • 1Department of Molecular Pathology, Tohoku University School of Medicine, Sendai Miyagi, Japan.


AURKA/STK15/BTAK, the gene encoding Aurora A kinase that is involved in the regulation of centrosomes and segregation of chromosomes, is frequently amplified and overexpressed in various kinds of human cancers, including pancreatic cancer. To address its possibility as a therapeutic target for pancreatic cancer, we employed the RNA interference technique to knockdown AURKA expression and analyzed its phenotypes. We found that the specific knockdown of AURKA in cultured pancreatic cancer cells strongly suppressed in vitro cell growth and in vivo tumorigenicity. The knockdown induced the accumulation of cells in the G(2)-M phase and eventual apoptosis. Furthermore, we observed a synergistic enhancement of the cytotoxicity of taxanes, a group of chemotherapeutic agents impairing G(2)-M transition, by the RNA interference-mediated knockdown of AURKA. These results indicate that inhibition of AURKA expression can result in potent antitumor activity and chemosensitizing activity to taxanes in human pancreatic cancer.

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