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Las funciones funcionales del ruido en los circuitos genéticos.

Avigdor Eldar1, Michael B Elowitz

  • 1Howard Hughes Medical Institute, Caltech M/C 114-96, 1200 East California Boulevard, Pasadena, California 91125, USA.

Nature
|September 11, 2010
PubMed
Resumen

Los circuitos genéticos celulares experimentan fluctuaciones, o ruido, que son cruciales para las funciones biológicas. Este ruido juega un papel esencial en la expresión génica, la diferenciación celular y la evolución en varios organismos.

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Área de la Ciencia:

  • Biología Celular y Molecular.
  • Biología de Sistemas Biología de Sistemas.
  • Biología evolutiva Biología evolutiva.

Sus antecedentes:

  • Las funciones celulares están reguladas por circuitos genéticos susceptibles a las fluctuaciones estocásticas, denominadas "ruido".
  • Históricamente visto como una molestia, el ruido biológico es cada vez más reconocido por su importancia funcional.
  • El ruido impacta los procesos desde las células microbianas y eucariotas hasta el desarrollo y la evolución multicelular.

Objetivo del estudio:

  • Revisar las funciones esenciales del ruido en los sistemas biológicos.
  • Para conectar el ruido, la arquitectura del circuito genético y las funciones biológicas.
  • Identificar futuros desafíos y oportunidades en la investigación del ruido.

Principales métodos:

  • Revisión de la literatura de la investigación existente sobre el ruido biológico.
  • Análisis de ejemplos que demuestran las funciones funcionales del ruido.
  • Síntesis de principios emergentes que vinculan el ruido, la arquitectura del circuito y la función.

Principales resultados:

  • El ruido es parte integral de la coordinación de la expresión génica en grandes regulones.
  • El ruido facilita las estrategias de diferenciación probabilística en poblaciones celulares.
  • El ruido puede impulsar transiciones evolutivas en largas escalas de tiempo.

Conclusiones:

  • El ruido biológico es una característica fundamental de los circuitos genéticos con diversas implicaciones funcionales.
  • Comprender la interacción entre el ruido, la arquitectura del circuito y los resultados biológicos es fundamental.
  • Se necesita más investigación para dilucidar completamente las múltiples facetas de las funciones del ruido en la biología.