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Tolerancia a los opiáceos - en busca del santo grial
Brigitte L Kieffer1, Christopher J Evans
1Institut de Génétique et de Biologie Moléculaire et Cellulaire, 67400 Illkirch, France. briki@igbmc.u-strasbg.fr
Cell
|March 15, 2002
Resumen
La tolerancia a los opioides, una adaptación común a los analgésicos, puede reducirse por la internalización del receptor, desafiando la visión tradicional de la desensibilización del receptor. Este hallazgo ofrece nuevos conocimientos sobre la gestión del tratamiento del dolor.
Área de la Ciencia:
- Farmacología Farmacología.
- La neurociencia es la neurociencia.
- Biología celular Biología celular.
Sus antecedentes:
- La tolerancia a los opiáceos es un desafío significativo en el manejo del dolor crónico.
- Tradicionalmente, la tolerancia a los opioides se atribuye a la desensibilización de los receptores opioides y a la reducción de la expresión de los receptores en la superficie celular.
- Investigaciones recientes sugieren que pueden estar involucrados mecanismos alternativos.
Objetivo del estudio:
- Investigar el papel de la internalización del receptor de opioides en el desarrollo de la tolerancia a los opioides.
- Desafiar la comprensión establecida de los mecanismos de tolerancia a los opioides.
Principales métodos:
- El estudio probablemente involucró experimentos in vivo para observar el comportamiento del receptor.
- Los métodos pueden incluir técnicas para medir la señalización de receptores y la expresión de la superficie celular.
- Análisis de las adaptaciones conductuales al tratamiento prolongado con opiáceos.
Principales resultados:
- La evidencia sugiere que la internalización del receptor puede disminuir la tolerancia a los opiáceos.
- Esto contrasta con la explicación convencional de la desensibilización del receptor.
Conclusiones:
- La internalización de los receptores opioides podría ser un mecanismo de protección contra el desarrollo de tolerancia.
- Este hallazgo requiere una reevaluación de los mecanismos subyacentes a la tolerancia a los opiáceos.
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