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Article Dans Une Revue Nature Communications Année : 2018

Targeting the Mycobacterium ulcerans cytochrome bc1:aa3 for the treatment of Buruli ulcer

Paul Schneide
  • Fonction : Auteur
Norihisa Ishii
  • Fonction : Auteur
Koichi Suzuki
  • Fonction : Auteur
Matthias Witschel
  • Fonction : Auteur

Résumé

Mycobacterium ulcerans is the causative agent of Buruli ulcer, a neglected tropical skin disease that is most commonly found in children from West and Central Africa. Despite the severity of the infection, therapeutic options are limited to antibiotics with severe side effects. Here, we show that M. ulcerans is susceptible to the anti-tubercular drug Q203 and related compounds targeting the respiratory cytochrome bc1:aa3. While the cytochrome bc1:aa3 is the primary terminal oxidase in Mycobacterium tuberculosis, the presence of an alternate bd-type terminal oxidase limits the bactericidal and sterilizing potency of Q203 against this bacterium. M. ulcerans strains found in Buruli ulcer patients from Africa and Australia lost all alternate terminal electron acceptors and rely exclusively on the cytochrome bc1:aa3 to respire. As a result, Q203 is bactericidal at low dose against M. ulcerans replicating in vitro and in mice, making the drug a promising candidate for Buruli ulcer treatment.
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Dates et versions

hal-01975358 , version 1 (09-01-2019)

Identifiants

Citer

Nicole Scherr, Raphael Bieri, Sangeeta S Thomas, Aurélie Chauffour, Nitin Pal Kalia, et al.. Targeting the Mycobacterium ulcerans cytochrome bc1:aa3 for the treatment of Buruli ulcer. Nature Communications, 2018, 9 (1), pp.5370. ⟨10.1038/s41467-018-07804-8⟩. ⟨hal-01975358⟩
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