Antitumor effect of the vascular-disrupting agent ZD6126 in a murine renal cell carcinoma model

Medinger, M. and Esser, N. and Soltau, J. and Lehmann, K. M. and Konerding, M. A. and Wolloscheck, T. and Ryan, A. J. and Drevs, J.. (2011) Antitumor effect of the vascular-disrupting agent ZD6126 in a murine renal cell carcinoma model. International journal of oncology, 38 (2). pp. 455-464.

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Official URL: http://edoc.unibas.ch/43920/

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ZD6126 is a vascular-disrupting agent that affects the endothelial tubulin cytoskeleton causing selective occlusion of tumor vasculature and extensive tumor cell necrosis. The present study evaluated the antitumor and antivascular activities of ZD6126 in the clinically relevant murine renal cell carcinoma (RENCA) model and also evaluated biological response to therapy using color Doppler imaging as biomarker. Mice were implanted with RENCA tumor cells (day 0) and established tumors were treated with ZD6126 (100 mg/kg i.p.) or vehicle with repeated intermittent doses on day 10, 14 and 18. ZD6126 treatment led to a significant reduction in tumor size and was associated with extensive tumor necrosis and a reduction in tumor blood flow versus controls. MVD increased with intermittent treatment (day 10, 14 and 18). In an additional study, animals were treated at day 19 and quantitative three-dimensional microvascular corrosion casting was performed to enable detailed assessment of the tumor vascular architecture. Corrosion casting showed that tumor vessel architecture is affected by treatment, whereas pre-existing vessels in control tissues are practically not affected. Inter-vessel and inter-branch distances as well as vessel diameters are influenced by treatment. In conclusion, ZD6126 showed potent antitumor efficacy in the RENCA model and our data suggest that decrease in tumor blood flow may be a useful surrogate marker of treatment effect.
Faculties and Departments:03 Faculty of Medicine
UniBasel Contributors:Medinger, Michael
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Spandidos Publications
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:03 Oct 2017 08:36
Deposited On:03 Oct 2017 08:36

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