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dc.contributor.author | Tenbaum, Stephan P. | - |
dc.contributor.author | Bernal, Juan | - |
dc.contributor.author | Muñoz Terol, Alberto | - |
dc.contributor.author | Baniahmad, Aria | - |
dc.date.accessioned | 2013-07-24T09:09:54Z | - |
dc.date.available | 2013-07-24T09:09:54Z | - |
dc.date.issued | 2003 | - |
dc.identifier | doi: 10.1016/S0012-1606(02)00023-4 | - |
dc.identifier | issn: 0012-1606 | - |
dc.identifier.citation | Developmental Biology 254(1): 149-160 (2003) | - |
dc.identifier.uri | http://hdl.handle.net/10261/80121 | - |
dc.description.abstract | Alien has been described as a corepressor for the thyroid hormone receptor (TR). Corepressors are coregulators that mediate gene silencing of DNA-bound transcriptional repressors. We describe here that Alien gene expression in vivo is regulated by thyroid hormone both in the rat brain and in cultured cells. In situ hybridization revealed that Alien is widely expressed in the mouse embryo and also throughout the rat brain. Hypothyroid animals exhibit lower expression of both Alien mRNAs and protein levels as compared with normal animals. Accordingly, we show that Alien gene is inducible after thyroid hormone treatment both in vivo and in cell culture. In cultured cells, the hormonal induction is mediated by either TRα or TRβ, while cells lacking detectable amounts of functional TR lack hormonal induction of Alien. We have detected two Alien-specific mRNAs by Northern experiments and two Alien-specific proteins in vivo and in cell lines by Western analysis, one of the two forms representing the CSN2 subunit of the COP9 signalosome. Interestingly, both Alien mRNAs and both detected proteins are regulated by thyroid hormone in vivo and in cell lines. Furthermore, we provide evidence for the existence of at least two Alien genes in rodents. Taken together, we conclude that Alien gene expression is under control of TR and thyroid hormone. This suggests a negative feedback mechanism between TR and its own corepressor. Thus, the reduction of corepressor levels may represent a control mechanism of TR-mediated gene silencing. © 2003 Elsevier Science (USA). All rights reserved. | - |
dc.description.sponsorship | This work was supported by grants from the Deutscher Akademischer Austauschdienst (to A.B. and S.P.T.), the “Programa de Acciones Especiales y Acciones de Política Científica” (APC1999-0172) of the Ministerio de Educación y Cultura of Spain (to S.P.T.), the Grant SAF2001-2291 from the Ministerio de Ciencia y Tecnologia to A.M., and the SFB 397 from the Deutsche Forschungsgemeinschaft (to A.B.). | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier | - |
dc.rights | closedAccess | - |
dc.title | Alien/CSN2 gene expression is regulated by thyroid hormone in rat brain | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/S0012-1606(02)00023-4 | - |
dc.date.updated | 2013-07-24T09:09:54Z | - |
dc.description.version | Peer Reviewed | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.languageiso639-1 | en | - |
item.fulltext | No Fulltext | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
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