Structure-based design, synthesis and evaluation of a novel family of PEX5-PEX14 interaction inhibitors against Trypanosoma
| Autor: | Valeria Napolitano, Piotr Mróz, Monika Marciniak, Vishal C. Kalel, Charlotte A. Softley, Julian D. Janna Olmos, Bettina G. Tippler, Kenji Schorpp, Sarah Rioton, Tony Fröhlich, Oliver Plettenburg, Kamyar Hadian, Ralf Erdmann, Michael Sattler, Grzegorz M. Popowicz, Maciej Dawidowski, Grzegorz Dubin |
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| Rok vydání: | 2022 |
| Předmět: |
Pharmacology
Protein Transport Trypanosoma Structure-Activity Relationship Organic Chemistry Drug Discovery Trypanosoma brucei brucei Membrane Proteins Chagas Disease Glycosomal Protein Import Hts Human African Trypanosomiasis Ppi Inhibition Structure-based Drug Design General Medicine Microbodies Trypanocidal Agents |
| Zdroj: | Eur. J. Med. Chem. 243:114778 (2022) |
| ISSN: | 1768-3254 |
| Popis: | Trypanosomiases are neglected tropical diseases caused by Trypanosoma (sub)species. Available treatments are limited and have considerable adverse effects and questionable efficacy in the chronic stage of the disease, urgently calling for the identification of new targets and drug candidates. Recently, we have shown that impairment of glycosomal protein import by the inhibition of the PEX5-PEX14 protein-protein interaction (PPI) is lethal to Trypanosoma. Here, we report the development of a novel dibenzo[b,f][1,4]oxazepin-11(10H)-one scaffold for small molecule inhibitors of PEX5-PEX14 PPI. The initial hit was identified by a high throughput screening (HTS) of a library of compounds. A bioisosteric replacement approach allowed to replace the metabolically unstable sulphur atom from the initial dibenzo[b,f][1,4]thiazepin-11(10H)-one HTS hit with oxygen. A crystal structure of the hit compound bound to PEX14 surface facilitated the rational design of the compound series accessible by a straightforward chemistry for the initial structure-activity relationship (SAR) analysis. This guided the design of compounds with trypanocidal activity in cell-based assays providing a promising starting point for the development of new drug candidates to tackle trypanosomiases. |
| Databáze: | OpenAIRE |
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