Journal
CANCER LETTERS
Volume 297, Issue 2, Pages 171-181Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2010.05.009
Keywords
Aurora kinase; Acute leukemia; Ara-C; Apoptosis; Mitotic catastrophe
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Funding
- Korea Research Foundation [KRF-2006-311-E00411]
- National Research Foundation of Korea [2006-311-E00411] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Aurora-A (Aur-A) is a centrosome-associated serine/threonine kinase that is overexpressed in various cancers and potentially correlated with chemoresistance. In the Ara-C-sensitive leukemia cell lines, silencing of Aur-A by small interfering RNA transfection led to a significant increase in the Ara-C-induced cell death rate through induction of mitochondria-mediated, caspase-dependent apoptosis. In contrast, combined treatment of the Ara-C-resistant leukemia cell lines with Aur-A siRNA and Ara-C remarkably enhanced the cell death rate via non-caspase-dependent mitotic catastrophe. Taken together, Aur-A inhibition was an effective treatment for both the Ara-C-sensitive and resistant leukemia cells by increasing apoptosis and mitotic catastrophe, respectively. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
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