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Published on: July 16, 2021
Las mutaciones en el gen FUS/TLS en el cromosoma 16 causan esclerosis lateral amiotrófica familiar
T J Kwiatkowski1, D A Bosco, A L Leclerc
1Department of Neurology, Massachusetts General Hospital, 114 16th Street, Charlestown, MA 02129, USA. tkwiatkowski@partners.org
Science (New York, N.Y.)
|March 3, 2009
Resumen
Las mutaciones en el gen fusionado en sarcoma / traducido en liposarcoma (FUS / TLS) están vinculadas a la esclerosis lateral amiotrófica familiar (ELA). La proteína mutante FUS/TLS se acumula en el citoplasma, lo que sugiere una vía común en la neurodegeneración.
Área de la Ciencia:
- Genética La genética.
- La neurociencia es la neurociencia.
- Biología Molecular Biología Molecular
Sus antecedentes:
- La esclerosis lateral amiotrófica (ELA) es una enfermedad fatal de las neuronas motoras.
- Los casos familiares de ELA a menudo implican factores genéticos no identificados.
- Se está investigando el papel del gen fusionado en sarcoma / traducido en liposarcoma (FUS / TLS) en la ELA.
Objetivo del estudio:
- Para identificar mutaciones genéticas asociadas con ELA familiar.
- Investigar los mecanismos patógenos de las mutaciones FUS/TLS en ALS.
Principales métodos:
- Análisis genético de casos familiares de ELA.
- Cribado de mutación del gen FUS/TLS.
- Análisis inmunohistoquímico de la localización de la proteína FUS/TLS en las neuronas.
Principales resultados:
- Identificaron 13 mutaciones en el gen FUS/TLS específico para la ELA familiar.
- La proteína mutante FUS/TLS exhibió una acumulación citoplasmática en las neuronas.
- Se observaron similitudes patológicas con las mutaciones de la proteína 43 de unión al ADN de la TAR (TDP43).
Conclusiones:
- Las mutaciones FUS/TLS son una causa de ELA familiar.
- La agregación citoplasmática de FUS/TLS y el metabolismo alterado del ARN son posibles mecanismos patógenos comunes en la ELA.
- Estos hallazgos pueden extenderse a otros trastornos neurodegenerativos.
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