MmpL3
- Mechanisms of ResistanceResistance against Membrane-Inserting MmpL3 Inhibitor through Upregulation of MmpL5 in Mycobacterium tuberculosis
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...
- Mechanisms of Action: Physiological EffectsSynergistic Interactions of Indole-2-Carboxamides and β-Lactam Antibiotics against Mycobacterium abscessus
New drugs or therapeutic combinations are urgently needed against Mycobacterium abscessus. Previously, we demonstrated the potent activity of indole-2-carboxamides 6 and 12 against M. abscessus. We show here that these compounds act synergistically with imipenem and cefoxitin in vitro and...
- Mechanisms of Action: Physiological Effects1H-Benzo[d]Imidazole Derivatives Affect MmpL3 in Mycobacterium tuberculosis
1H-benzo[d]imidazole derivatives exhibit antitubercular activity in vitro at a nanomolar range of concentrations and are not toxic to human cells, but their mode of action remains unknown. Here, we showed that these compounds are active against intracellular Mycobacterium tuberculosis.
- Chemistry; BiosynthesisIndole-2-Carboxamides Are Active against Mycobacterium abscessus in a Mouse Model of Acute Infection
Nontuberculous mycobacteria (NTM) pathogens particularly infect patients with structural lung disorders. We previously reported novel indole-2-carboxamides (ICs) that are active against a wide panel of NTM pathogens.
- Experimental TherapeuticsHC2091 Kills Mycobacterium tuberculosis by Targeting the MmpL3 Mycolic Acid Transporter