El enzima indoleamina 2,3 dioxigenasa ((IDO) y la tolerancia inmune

  1. María Jesús Coma-del-Corral 1
  2. Pilar Muñiz Rodríguez 2
  3. Joaquín Terán Santos 3
  1. 1 Unidad de Investigación del Hospital Universitario de Burgos
  2. 2 Departamento de Biología y Bioquímica molecular de la Universidad de Burgos
  3. 3 Unidad de Sueño del Hospital Universitario de Burgos.
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Revista:
Revista Electrónica de Biomedicina

ISSN: 1697-090X

Año de publicación: 2013

Número: 3

Páginas: 47-58

Tipo: Artículo

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Otras publicaciones en: Revista Electrónica de Biomedicina

Resumen

La indolamina 2,3-dioxigenasa (IDO) es un enzima predominante extrahepática intracelular y se encuentra en numerosas células, principalmente macrófagos. La degradación del triptófano genera quinurenina, y esta vía del metabolismo del triptófano, constituye un mecanismo eficaz de modulación de la respuesta inmune. La IDO facilita la tolerancia inmunológica, y es uno de los principales actores implicados en la inhibición de la proliferación celular, incluyendo las células T activadas. La IDO induce la producción de especies reactivas de oxígeno (ROS) y radicales de óxido nítrico (NO). Varias vías implicadas en la regulación de respuesta inmunológica se regulan por mecanismos redox. Las especies reactivas del oxígeno y nitrógeno (ROS-RNS) y otras moléculas activas redox cumplen funciones clave en la inmunidad

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Fuente de los datos: Dialnet