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Erschienen in: Investigational New Drugs 5/2010

01.10.2010 | PRECLINICAL STUDIES

Effect of a Vitamin D3 derivative (B3CD) with postulated anti-cancer activity in an ovarian cancer animal model

verfasst von: Thilo S. Lange, Ashley R. Stuckey, Katina Robison, Kyu Kwang Kim, Rakesh K. Singh, Christina A. Raker, Laurent Brard

Erschienen in: Investigational New Drugs | Ausgabe 5/2010

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Summary

The objective of the present study was to test the hypothesis that Calcidiol derivative B3CD qualifies as a potential anti-cancer drug in vivo employing an ovarian cancer xenograft model in mice. In addition, the selectivity of B3CD on viability and proliferation of platinum-resistant human ovarian cancer cell lines in comparison to control cell lines was analyzed in vitro. B3CD displayed cell line-specific cytotoxicity screened against a panel of ovarian and other carcinoma cell lines, endothelial and control cells. B3CD, at sub-cytotoxic concentrations, revealed stronger effects on the proliferation of SKOV-3 ovarian cancer cells vs. primary fibroblasts as determined by BrdU incorporation analysis. Treatment with B3CD at 0.5 µM resulted in highly condensed chromatin and fragmented nuclei in SKOV-3 cells but not in primary fibroblasts. B3CD induced cell death at low drug concentrations (≤0.5 µM) in SKOV-3 ovarian cancer cells is mediated by the p38 MAPK signaling pathway: B3CD induced p38 MAPK expression and activation in SKOV-3 cells and inhibition of p38 signaling counteracted B3CD induced cell death in vitro. An ovarian cancer cell animal model (human SKOV-3 cell derived xenografts in nude mice) revealed that tumor growth in few B3CD treated mice accelerated while the majority of B3CD treated mice displayed delayed tumor growth or full tumor regression. B3CD possesses anti-ovarian cancer properties in vitro and in vivo. We propose the further development of non-calcemic bromoacetoxy derivatives of vitamin D3 as potential anti-cancer therapeutics.
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Metadaten
Titel
Effect of a Vitamin D3 derivative (B3CD) with postulated anti-cancer activity in an ovarian cancer animal model
verfasst von
Thilo S. Lange
Ashley R. Stuckey
Katina Robison
Kyu Kwang Kim
Rakesh K. Singh
Christina A. Raker
Laurent Brard
Publikationsdatum
01.10.2010
Verlag
Springer US
Erschienen in
Investigational New Drugs / Ausgabe 5/2010
Print ISSN: 0167-6997
Elektronische ISSN: 1573-0646
DOI
https://doi.org/10.1007/s10637-009-9284-y

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