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Updated: Jul 19, 2026
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System for Efficacy and Cytotoxicity Screening of Inhibitors Targeting Intracellular Mycobacterium tuberculosis
Published on: April 5, 2017
Un medicamento de diarilquinolina activo en la ATP sintasa de Mycobacterium tuberculosis, también conocido como
Koen Andries1, Peter Verhasselt, Jerome Guillemont
1Johnson & Johnson Pharmaceutical Research and Development, Turnhoutseweg 30, 2340 Beerse, Belgium. kandries@prdbe.jnj.com
Science (New York, N.Y.)
|December 14, 2004
Resumen
Un nuevo medicamento, R207910, muestra una potente actividad contra la tuberculosis (TB) sensible y resistente a los medicamentos. Esta diarilquinolina aceleró el tratamiento en ratones y es un candidato prometedor para nuevas terapias contra la tuberculosis.
Área de la Ciencia:
- Microbiología Microbiología.
- Farmacología Farmacología.
- Enfermedades infecciosas Enfermedades infecciosas.
Sus antecedentes:
- La incidencia de la tuberculosis está aumentando en todo el mundo.
- No se han desarrollado nuevos medicamentos contra la tuberculosis en 40 años.
- La tuberculosis resistente a los medicamentos representa una amenaza significativa para la salud pública.
Objetivo del estudio:
- Identificar y caracterizar nuevos compuestos con actividad contra Mycobacterium tuberculosis.
- Evaluar la eficacia de R207910 en modelos preclínicos de tuberculosis.
- Evaluar la seguridad y tolerabilidad de R207910 en voluntarios humanos.
Principales métodos:
- Prueba de susceptibilidad in vitro de R207910 contra la tuberculosis por Mycobacterium sensible y resistente a los fármacos.
- Estudios de eficacia in vivo en un modelo de tuberculosis en ratones.
- Evaluaciones farmacocinéticas y de seguridad en voluntarios humanos sanos.
- Selección in vitro de mutantes resistentes para elucidar el mecanismo de acción del fármaco.
Principales resultados:
- R207910 demostró una potente inhibición de Mycobacterium tuberculosis in vitro (MIC de 0,06 μg/ml) y fue utilizado en el tratamiento de la tuberculosis.
- R207910 exhibió una actividad bactericida superior en comparación con la isoniazida y la rifampicina en ratones.
- La sustitución con R207910 en regímenes de tratamiento de primera línea aceleró la actividad bactericida y condujo a la conversión completa de cultivos en algunas combinaciones.
- Una dosis única de R207910 inhibió el crecimiento micobacteriano durante una semana in vivo.
- El fármaco fue bien tolerado en voluntarios humanos sanos en dosis eficaces.
- Los estudios de selección de mutantes sugieren que R207910 se dirige a la bomba de protones de la adenosina trifosfato (ATP) sintasa.
Conclusiones:
- R207910 es una nueva diarilquinolina potente con actividad bactericida significativa contra la tuberculosis sensible a los medicamentos y la tuberculosis resistente a los medicamentos.
- R207910 acelera el tratamiento y demuestra un perfil de seguridad favorable, lo que lo convierte en un candidato prometedor para nuevas terapias de tuberculosis.
- La identificación del mecanismo de acción de R207910 proporciona un nuevo objetivo para el desarrollo de fármacos contra la tuberculosis.
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