New insights into the molecular pathophysiology of fragile X syndrome and therapeutic perspectives from the animal model

Fragile X syndrome is the most common monogenetic form of intellectual disability and is a leading cause of autism. This syndrome is produced by the reduced transcription of the fragile X mental retardation (FMR1) gene, and it is characterized by a range of symptoms heterogeneously expressed in pati...

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Detalles Bibliográficos
Autores: Busquets Garcia, Arnau, 1985-, Maldonado, Rafael, 1961-, Ozaita Mintegui, Andrés, 1969-
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Institución:Universitat Pompeu Fabra
Repositorio:Repositorio Digital de la UPF
OAI Identifier:oai:repositori.upf.edu:10230/25645
Acceso en línea:http://hdl.handle.net/10230/25645
http://dx.doi.org/10.1016/j.biocel.2014.05.004
Access Level:acceso abierto
Palabra clave:Autisme -- Aspectes genètics
Discapacitats mentals
Síndrome del cromosoma X fràgil
Autism
Fragile X syndrome
mGluR5
Mammalian target of rapamycin (mTOR)
Endocannabinoid system
CB1 cannabinoid receptor
Intellectual disability
Anxiety
Epilepsy
Nociception
Descripción
Sumario:Fragile X syndrome is the most common monogenetic form of intellectual disability and is a leading cause of autism. This syndrome is produced by the reduced transcription of the fragile X mental retardation (FMR1) gene, and it is characterized by a range of symptoms heterogeneously expressed in patients such as cognitive impairment, seizure susceptibility, altered pain sensitivity and anxiety. The recent advances in the understanding of the pathophysiological mechanisms involved have opened novel potential therapeutic approaches identified in preclinical rodent models as a necessary preliminary step for the subsequent evaluation in patients. Among those possible therapeutic approaches, the modulation of the metabotropic glutamate receptor signaling or the GABA receptor signaling have focused most of the attention. New findings in the animal models open other possible therapeutic approaches such as the mammalian target of rapamycin signaling pathway or the endocannabinoid system. This review summarizes the emerging data recently obtained in preclinical models of fragile X syndrome supporting these new therapeutic perspectives.