New Gene Discovery Suggests Which Patients CTI's Brostallicin M...(information learned from preclinical stu...),Health

Date:4/13/2008

information learned from preclinical studies helps guide the design of future clinical trials. An integrative knowledge mining strategy was used to identify the genomic and functional consequences of brostallicin response. According to the study abstract, "Gene Set Enrichment Analysis (GSEA) revealed unique associations between cells' sensitivity to brostallicin," and distinct sets of genes, "including significant associations with particular aspects of DNA repair." In addition to correlative genomic analyses on the NCI-60 cell line panel, a high-throughput siRNA (HT-RNAi) screen was conducted to functionally identify those gene products involved in brostallicin response. RNA interference is an experimental technique that allows for the targeted reductions of gene expression. A systematic evaluation of 7,000 genes was conducted in a cisplatin resistant variant of the ovarian cancer cell line A2780. A number of interesting 'hits' or targets were identified in the screen that modulate the cells sensitivity to brostallicin and represent unique and functionally based contexts of vulnerability. Knowledge mining of the brostallicin siRNA gene hits revealed enrichment of a number of important molecular concepts and important genes involved in DNA repair. On the basis of these and related studies, a clinical trial will soon be initiated specifically targeting patients with genetic defects in mismatch repair genes such as BRCA1 and 2, which are associated with susceptibility for breast and ovarian cancer.

To review the poster and see more detailed information about the study, please go to http://www.celltherapeutics.com/investors_news-updates.htm.

Context of Vulnerability

CTI and SM are employing a new method of drug development, the "context of vulnerability" approach. Using cutting-edge genomic profiling tools, the Company creates a profile of which cells react to c
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SOURCE Systems Medicine LLC Copyright©2008 PR Newswire. All rights reserved

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