Resistance against Membrane-Inserting MmpL3 Inhibitor through Upregulation of MmpL5 in Mycobacterium tuberculosis.
Antimicrob Agents Chemother
; 64(12)2020 11 17.
Article
em En
| MEDLINE
| ID: mdl-32958714
ABSTRACT
Spiroketal indolyl Mannich bases (SIMBs) present a novel class of membrane-inserting antimycobacterials with efficacy in a tuberculosis mouse model. SIMBs exert their antibacterial activity by two mechanisms. The indolyl Mannich base scaffold causes permeabilization of bacteria, and the spiroketal moiety contributes to inhibition of the mycolic acid transporter MmpL3. Here, we show that low-level resistance to SIMBs arises by mutations in the transcriptional repressor MmpR5, resulting in upregulation of the efflux pump MmpL5.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Regulação para Cima
/
Mycobacterium tuberculosis
Limite:
Animals
Idioma:
En
Revista:
Antimicrob Agents Chemother
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Singapura