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Descubrimiento funcional a través de un compendio de perfiles de expresión
T R Hughes1, M J Marton, A R Jones
1Rosetta Inpharmatics, Inc., Kirkland, Washington 98034, USA.
Cell
|August 10, 2000
Resumen
Este estudio introduce un nuevo ensayo para monitorear simultáneamente cientos de funciones celulares. Este método ayuda a comprender la función génica y los efectos de los medicamentos mediante el análisis de los perfiles de expresión génica.
Área de la Ciencia:
- Biología de sistemas Biología de sistemas.
- Biología molecular La biología molecular.
- La genómica es la genómica.
Sus antecedentes:
- Comprender las respuestas celulares a las perturbaciones es crucial en biología.
- Los métodos existentes a menudo carecen de la capacidad de monitorear numerosas funciones celulares simultáneamente.
Objetivo del estudio:
- Desarrollar un único ensayo para monitorear cientos de funciones celulares simultáneamente.
- Para crear un compendio de referencia de perfiles de expresión para diversas perturbaciones.
- Para permitir la caracterización de genes no caracterizados y agentes farmacológicos.
Principales métodos:
- Construcción de un compendio de referencia de perfiles de expresión génica para 300 mutaciones y tratamientos químicos en *Saccharomyces cerevisiae* (levadura).
- Utilizando el análisis de coincidencia de patrones de los perfiles de expresión para identificar las vías celulares afectadas.
- Validación experimental de las funciones genéticas identificadas.
Principales resultados:
- Identificó con éxito las vías celulares afectadas por perturbaciones, incluso sutiles, a través de la coincidencia de patrones.
- Caracterizó ocho genes no caracterizados, asignándoles roles en el metabolismo de esteroles, la función de la pared celular, la respiración mitocondrial o la síntesis de proteínas.
- Identificó un nuevo objetivo para el fármaco diclonina, lo que demuestra la utilidad del compendio en estudios farmacológicos.
Conclusiones:
- Un solo ensayo combinado con un compendio de perfiles de expresión proporciona una poderosa herramienta para diseccionar las funciones celulares.
- Este enfoque caracteriza eficazmente los genes no caracterizados y ayuda a comprender los mecanismos de acción de los medicamentos.
- El método desarrollado ofrece una solución escalable para el análisis a nivel de sistemas de perturbaciones celulares.
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