In the present study the cytotoxic effect of the tyrosine kinase inhibitor imatinib (STI571) was evaluated on three established human prostatic cancer cell lines PC-3, DU 145 and LNCaP using the XTT-assay. Additionally, the combined effects of imatinib/etoposide, imatinib/estramustine phosphate and imatinib/docetaxel were tested for synergistic or antago-nistic effects by the isobologram method. The proliferation of all three cell lines can be inhib-ited by imatinib in vitro. Simultaneously exposed, the combination of imatinib/estramustine phosphate can be recommended whereas the combination of imatinib/docetaxel produces an-tagonistic effects.
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In the present study the cytotoxic effect of the tyrosine kinase inhibitor imatinib (STI571) was evaluated on three established human prostatic cancer cell lines PC-3, DU 145 and LNCaP using the XTT-assay. Additionally, the combined effects of imatinib/etoposide, imatinib/estramustine phosphate and imatinib/docetaxel were tested for synergistic or antago-nistic effects by the isobologram method. The proliferation of all three cell lines can be inhib-ited by imatinib in vitro. Simultaneously expo...
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