Chromosome 20q Amplification Regulates Response to Kinesin-5 Inhibitor

Autor: Aimee L. Jackson, Mao Mao, Sumire Kobayashi, Teresa Ward, Matthew Biery, Hongyue Dai, Steven R. Bartz, Peter S. Linsley
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Cancer Informatics, Vol 6 (2008)
Druh dokumentu: article
ISSN: 1176-9351
DOI: 10.4137/CIN.S609
Popis: We identified gene expression signatures predicting responsiveness to a Kinesin-5 (KIF11) inhibitor (Kinesin-5i) in cultured colon tumor cell lines. Genes predicting resistance to Kinesin-5i were enriched for those from chromosome 20q, a region of frequent amplification in a number of tumor types. siRNAs targeting genes in this chromosomal region identified AURKA, TPX2 and MYBL2 as genes whose disruption enhances response to Kinesin-5i. Taken together, our results show functional interaction between these genes, and suggest that their overexpression is involved in resistance to Kinesin-5i. Furthermore, our results suggest that patients whose tumors overexpress AURKA due to amplification of 20q will more likely resist treatment with Kinesin-5 inhibitor, and that inactivation of AURKA may sensitize these patients to treatment.
Databáze: Directory of Open Access Journals