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Título: | Oestradiol signalling through the Akt-mTORC1-S6K1 |
Autor: | Varea, Olga CSIC ORCID; Escoll, Maribel CSIC ORCID; Díez, Héctor; Garrido Jurado, Juan José CSIC ORCID ; Wandosell, Francisco CSIC ORCID | Palabras clave: | Estradiol cytoplasmic signalling Estrogen Rheb activation S6 kinase activation |
Fecha de publicación: | 2013 | Editor: | Elsevier | Citación: | Biochimica et Biophysica Acta - Molecular Cell Research 1833: 1052- 1064 (2013) | Resumen: | The oestradiol plays an important role in normal brain development and exerts neuroprotective actions. Oestradiol is mainly produced in the ovary and in addition is locally synthesised in the brain. Most of the oestradiol functions have been associated with its capacity to directly bind and dimerize >classical oestrogen receptors> (ERs), alpha and beta. The ERs' actions have been classified as >genomic> and >non-genomic> depending on whether protein synthesis occurs through ER driven transcription or not. Indeed, recent evidence suggests that oestrogen may also act as a more general >trophic factor>. Hence, we have studied the capacity of oestradiol to activate the PI3K/Akt pathway and its implication in axonal growth and neuronal morphogenesis. Our data show that when oestrogen receptors are blocked the axonal and dendritic lengths are reduced in mouse primary neurons. We found that Akt/Rheb/mTORC1 responds to ER activation in neurons and that some elements of this pathway are able to restore a normal neuronal morphology even in the presence of oestrogen receptor antagonist. All these data demonstrate a new mechanism regulated by oestradiol, at least in neuronal morphogenesis. © 2013 Elsevier B.V. | URI: | http://hdl.handle.net/10261/98184 | DOI: | 10.1016/j.bbamcr.2012.12.019 | Identificadores: | doi: 10.1016/j.bbamcr.2012.12.019 issn: 0167-4889 |
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