Publications by Hristo Plamenov Varbanov

Screening-based approach to discover effective platinum-based chemotherapies for cancers with poor prognosis

Gerardo Turcatti, Damiano Banfi, Paul Joseph Dyson, Fabien Kuttler, Hristo Plamenov Varbanov

Drug combinations are extensively used to treat cancer and are often selected according to complementary mechanisms. Here, we describe a cell-based high-throughput screening assay for identification of synergistic combinations between broadly applied plati ...

2019

Repositioning approved drugs for the treatment of problematic cancers using a screening approach

Gerardo Turcatti, Damiano Banfi, Paul Joseph Dyson, Fabien Kuttler, Hristo Plamenov Varbanov

Advances in treatment strategies together with an earlier diagnosis have considerably increased the average survival of cancer patients over the last four decades. Nevertheless, despite the growing number of new antineoplastic agents introduced each year, ...

2017

Oxaliplatin reacts with DMSO only in the presence of water

Paul Joseph Dyson, Laure Menin, Hristo Plamenov Varbanov

Herein we show that oxaliplatin reacts rapidly with DMSO in aqueous solutions, despite being stable in pure DMSO and pure water. Furthermore, the reactivity of the clinically applied Pt(II) drugs in water/DMSO and PBS/DMSO mixtures, and the nature of the s ...

2017

Prediction of logP for Pt(II) and Pt(IV) complexes: Comparison of statistical and quantum-chemistry based approaches

Hristo Plamenov Varbanov

The octanol/water partition coefficient, logP, is one of the most important physico-chemical parameters for the development of new metal-based anticancer drugs with improved pharmacokinetic properties. This study addresses an issue with the absence of publ ...

Elsevier Science Inc2016

The role of the equatorial ligands for the redox behavior, mode of cellular accumulation and cytotoxicity of platinum(IV) prodrugs

Hristo Plamenov Varbanov, Sarah Theiner

The current study aims to elucidate the possible reasons for the significantly different pharmacological behavior of platinum(IV) complexes with cisplatin-, carboplatin- or nedaplatin-like cores and how this difference can be related to their main physicoc ...

Elsevier2016

Tetracarboxylatoplatinum(IV) complexes featuring monodentate leaving groups - A rational approach toward exploiting the platinum(IV) prodrug strategy

Hristo Plamenov Varbanov

A series of novel symmetrically and unsymmetrically coordinated platinum(IV) complexes with monodentate carboxylato ligands was synthesized. The compounds exhibit a general coordination sphere of [Pt(en)(OCOR)(2)(OCOR')(OCOR '')1, where the carboxylato lig ...

Elsevier Science Inc2015