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Structure Based Discovery of Inhibitors of CYP125 and CYP142 from Mycobacterium tuberculosis.

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Katariya, Mona M 
Snee, Matthew 
Tunnicliffe, Richard B 
Kavanagh, Madeline E 
Boshoff, Helena IM 

Abstract

Mycobacterium tuberculosis (Mtb) was responsible for approximately 1.6 million deaths in 2021. With the emergence of extensive drug resistance, novel therapeutic agents are urgently needed, and continued drug discovery efforts required. Host-derived lipids such as cholesterol support Mtb growth, and are also suspected to function in immunomodulation, with links to persistence and immune evasion. Mtb cytochrome P450 (CYP) enzymes facilitate key steps in lipid catabolism and thus present potential targets for inhibition. Here we present a series of compounds based on an ethyl 5-(pyridin-4-yl)-1H-indole-2-carboxylate pharmacophore which bind strongly to both Mtb cholesterol oxidases CYP125 and CYP142. Using a structure-guided approach, combined with biophysical characterization, compounds with micromolar range in-cell activity against clinically relevant drug-resistant isolates were obtained. These will support further development of much-needed additional treatment options and provide routes to probe the role of CYP125 and CYP142 in Mtb pathogenesis.

Description

Keywords

Cytochrome P450 Enzymes, Drug design, Inhibitors, structure-activity relationships, tuberculosis

Journal Title

Chemistry

Conference Name

Journal ISSN

0947-6539
1521-3765

Volume Title

Publisher

Wiley
Sponsorship
Biotechnology and Biological Sciences Research Council (BB/R009775/1)