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Molecules 2012, 17(7), 7864-7886; doi:10.3390/molecules17077864
Article

Tebrophen — An Old Polyphenol Drug with Anticancer Potential

1, 2,3, 2,4, 1, 1, 1, 2,4, 2,5 and 2,5,*
1 Laboratory for Molecular and Cellular Biology, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia 2 GlaxoSmithKline Research Centre Zagreb Ltd., Prilaz baruna Filipovića 29, HR-10000 Zagreb, Croatia 3 Laboratory for Epigenomics, Division of Molecular Medicine, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia 4 Galapagos istraživački centar d.o.o., Prilaz baruna Filipovića 29, HR-10000 Zagreb, Croatia 5 University of Zagreb, School of Medicine, Center for Translational and Clinical Research, Šalata 2, HR-10000 Zagreb, Croatia Dedicated to the beautiful symmetry...
* Author to whom correspondence should be addressed.
Received: 26 March 2012 / Revised: 8 June 2012 / Accepted: 14 June 2012 / Published: 28 June 2012
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Abstract

In vitro high-throughput screening was carried out in order to detect new activities for old drugs and to select compounds for the drug development process comprising new indications. Tebrophen, a known antiviral drug, was found to inhibit activities on inflammation and cancer related targets. In primary screening this semisynthetic halogenated polyphenol was identified to inhibit the activities of kinases ZAP-70 and Lck (IC50 0.34 µM and 16 µM, respectively), as well as hydrolase DPPIV (at 80 µM 41% inhibition). Next, it showed no cytotoxic effects on standard cell lines within 24 h. However, tebrophen slowed propagation of breast cancer (MDA-MB-231), osteosarcoma (U2OS) and cervical carcinoma (HeLa), through at least 35 population doublings in a dose-dependent manner. It completely stopped the division of the prostate cancer (PC3) cell line at 50 µM concentration and the cells entered massive cell death in less than 20 days. On the other hand, tebrophen did not influence the growth of normal fibroblasts. According to the measured oxidative burst and estimated in silico parameters its direct antioxidative ability is limited. The obtained results indicate that tebrophen can be considered a promising lead molecule for generating more soluble derivatives with specific anticancer efficacy.
Keywords: tebrophen; anticancer; high-throughput screening; molecular modelling; population doublings tebrophen; anticancer; high-throughput screening; molecular modelling; population doublings
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Rubelj, I.; Stepanić, V.; Jelić, D.; Vidaček, N.Š.; Kalajžić, A.Ć.; Ivanković, M.; Nujić, K.; Matijašić, M.; Verbanac, D. Tebrophen — An Old Polyphenol Drug with Anticancer Potential . Molecules 2012, 17, 7864-7886.

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