| Literature DB >> 15990222 |
Daniel S Metzinger1, Douglas D Taylor, Cicek Gercel-Taylor.
Abstract
Treatment failures result from resistance to chemotherapy in ovarian cancer. The effect of cisplatin and paclitaxel treatments on chemosensitivity was studied in ovarian cancer cells developed from a patient with stage IIIC disease. Cells (UL-3A, UL-3B) that recovered from cisplatin (Cis) and paclitaxel (Tax) treatments showed higher levels of p53, mdr-1 and chemoresistance than untreated controls. EC50 values of Cis and Tax for UL-3A clones were 7.2-34.6, average 20.9 microg/ml, while UL-3B clones ranged from 11.8-252.0 microg/ml, with a mean value of 73.2 microg/ml for Cis, and 260.0-4400.0 nM (mean 2555.0 nM) for Tax. Selection pressures during treatment may contribute to drug resistance.Entities:
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Year: 2005 PMID: 15990222 DOI: 10.1016/j.canlet.2005.05.016
Source DB: PubMed Journal: Cancer Lett ISSN: 0304-3835 Impact factor: 8.679