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Updated: Mar 8, 2026

A High-throughput Compatible Assay to Evaluate Drug Efficacy against Macrophage Passaged Mycobacterium tuberculosis
Published on: March 24, 2017
Antituberculosis drugs: reducing efflux=increasing activity.
Liliana Rodrigues1, Tanya Parish2, Meenakshi Balganesh3
1Grupo de Genética de Micobacterias, Departamento de Microbiología, Medicina Preventiva y Salud Pública, Facultad de Medicina and BIFI, Universidad de Zaragoza, Zaragoza, Spain; CIBER Enfermedades Respiratorias (CIBERES), Madrid, Spain; Fundación Agencia Aragonesa para la Investigación y Desarrollo (ARAID), Zaragoza, Spain.
Efflux pumps play a significant role in multidrug-resistant tuberculosis. Understanding drug efflux is crucial for developing new tuberculosis treatments and avoiding drug resistance.
Area of Science:
- Microbiology
- Pharmacology
- Drug Discovery
Background:
- Historically, efflux pumps in mycobacteria were considered to have a minor role in drug resistance.
- The rise of multidrug-resistant tuberculosis necessitates a re-evaluation of efflux pump significance.
Purpose of the Study:
- To highlight the importance of efflux in tuberculosis drug discovery.
- To present a method for assessing drug efflux in potential tuberculosis therapeutics.
Main Methods:
- Development of an experimental approach to study compound efflux.
- Application of the method to compounds from the More Medicines for Tuberculosis project.
Main Results:
- Demonstrated that efflux pumps are critical factors in mycobacterial drug resistance.
- Provided examples illustrating the impact of efflux on tuberculosis drug discovery.
Conclusions:
- Efflux should be a key consideration in tuberculosis drug discovery programs.
- Novel strategies are needed to evaluate and address drug efflux liability in candidate drugs.
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