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Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism
Fibroblast growth factor 1 (FGF1) is involved in muscle development and regeneration. The FGF1 gene contains four tissue-specific promoters allowing synthesis of four transcripts with distinct leader regions. Two of these transcripts contain internal ribosome entry sites (IRESs), which are RNA eleme...
Autores principales: | , , , , , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2009
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2760804/ https://www.ncbi.nlm.nih.gov/pubmed/19561198 http://dx.doi.org/10.1093/nar/gkp550 |
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author | Conte, Caroline Ainaoui, Nadera Delluc-Clavières, Aurélie Khoury, Marie P. Azar, Rania Pujol, Françoise Martineau, Yvan Pyronnet, Stéphane Prats, Anne-Catherine |
author_facet | Conte, Caroline Ainaoui, Nadera Delluc-Clavières, Aurélie Khoury, Marie P. Azar, Rania Pujol, Françoise Martineau, Yvan Pyronnet, Stéphane Prats, Anne-Catherine |
author_sort | Conte, Caroline |
collection | PubMed |
description | Fibroblast growth factor 1 (FGF1) is involved in muscle development and regeneration. The FGF1 gene contains four tissue-specific promoters allowing synthesis of four transcripts with distinct leader regions. Two of these transcripts contain internal ribosome entry sites (IRESs), which are RNA elements allowing mRNA translation to occur in conditions of blockade of the classical cap-dependent mechanism. Here, we investigated the function and the regulation of FGF1 during muscle differentiation and regeneration. Our data show that FGF1 protein expression is induced in differentiating myoblasts and regenerating mouse muscle, whereas siRNA knock-down demonstrated FGF1 requirement for myoblast differentiation. FGF1 induction occurred at both transcriptional and translational levels, involving specific activation of both promoter A and IRES A, whereas global cap-dependent translation was inhibited. Furthermore, we identified, in the FGF1 promoter A distal region, a cis-acting element able to activate the IRES A-driven translation. These data revealed a mechanism of molecular coupling of mRNA transcription and translation, involving a unique process of IRES activation by a promoter element. The crucial role of FGF1 in myoblast differentiation provides physiological relevance to this novel mechanism. This finding also provides a new insight into the molecular mechanisms linking different levels of gene expression regulation. |
format | Text |
id | pubmed-2760804 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2009 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-27608042009-10-13 Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism Conte, Caroline Ainaoui, Nadera Delluc-Clavières, Aurélie Khoury, Marie P. Azar, Rania Pujol, Françoise Martineau, Yvan Pyronnet, Stéphane Prats, Anne-Catherine Nucleic Acids Res Gene Regulation, Chromatin and Epigenetics Fibroblast growth factor 1 (FGF1) is involved in muscle development and regeneration. The FGF1 gene contains four tissue-specific promoters allowing synthesis of four transcripts with distinct leader regions. Two of these transcripts contain internal ribosome entry sites (IRESs), which are RNA elements allowing mRNA translation to occur in conditions of blockade of the classical cap-dependent mechanism. Here, we investigated the function and the regulation of FGF1 during muscle differentiation and regeneration. Our data show that FGF1 protein expression is induced in differentiating myoblasts and regenerating mouse muscle, whereas siRNA knock-down demonstrated FGF1 requirement for myoblast differentiation. FGF1 induction occurred at both transcriptional and translational levels, involving specific activation of both promoter A and IRES A, whereas global cap-dependent translation was inhibited. Furthermore, we identified, in the FGF1 promoter A distal region, a cis-acting element able to activate the IRES A-driven translation. These data revealed a mechanism of molecular coupling of mRNA transcription and translation, involving a unique process of IRES activation by a promoter element. The crucial role of FGF1 in myoblast differentiation provides physiological relevance to this novel mechanism. This finding also provides a new insight into the molecular mechanisms linking different levels of gene expression regulation. Oxford University Press 2009-09 2009-06-26 /pmc/articles/PMC2760804/ /pubmed/19561198 http://dx.doi.org/10.1093/nar/gkp550 Text en © 2009 The Author(s) http://creativecommons.org/licenses/by-nc/2.0/uk/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Gene Regulation, Chromatin and Epigenetics Conte, Caroline Ainaoui, Nadera Delluc-Clavières, Aurélie Khoury, Marie P. Azar, Rania Pujol, Françoise Martineau, Yvan Pyronnet, Stéphane Prats, Anne-Catherine Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism |
title | Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism |
title_full | Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism |
title_fullStr | Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism |
title_full_unstemmed | Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism |
title_short | Fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism |
title_sort | fibroblast growth factor 1 induced during myogenesis by a transcription–translation coupling mechanism |
topic | Gene Regulation, Chromatin and Epigenetics |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2760804/ https://www.ncbi.nlm.nih.gov/pubmed/19561198 http://dx.doi.org/10.1093/nar/gkp550 |
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