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La autodestrucción axonal y la neurodegeneración
Martin C Raff1, Alan V Whitmore, John T Finn
1MRC Laboratory for Molecular Cell Biology and Cell Biology Unit and the Biology Department, University College London, London WC1E 6BT, UK. m.raff@ucl.ac.uk
Science (New York, N.Y.)
|May 4, 2002
Resumen
Las neuronas poseen dos mecanismos distintos de autodestrucción. Una es la apoptosis para la muerte celular, mientras que la segunda degenera rápidamente los axones cortados, un proceso potencialmente utilizado en el desarrollo y la respuesta al estrés.
Área de la Ciencia:
- La neurobiología es la neurobiología.
- Biología celular Biología celular.
- Neurociencia del desarrollo neurológico.
Sus antecedentes:
- Las neuronas tienen vías intrínsecas de autodestrucción.
- La apoptosis es un mecanismo conocido de muerte celular en las neuronas.
Objetivo del estudio:
- Investigar la existencia y la función de un segundo programa de autodestrucción neuronal distinto.
- Para determinar si este programa está involucrado en la poda axonal y la respuesta a los insultos.
Principales métodos:
- El resumen no especifica los métodos.
Principales resultados:
- Las neuronas poseen al menos dos programas de autodestrucción.
- En el axón existe un segundo programa, distinto de la apoptosis.
- Este programa axonal desencadena una rápida degeneración de los axones cortados.
Conclusiones:
- Las neuronas tienen un mecanismo especializado para la autodestrucción del axón.
- Este mecanismo puede desempeñar un papel en el desarrollo neuronal y la respuesta al estrés celular.
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