CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishRNA-binding proteins plays a pivotal role in the development and maintenance of the nervous system. Neural ELAV proteins are key inducers of neuronal differentiation through the stabilization and/or translational enhancement of target transcripts bearing the AU-rich elements (AREs), whereas Musashi-1 maintains the stem cell proliferation state by acting as a translational repressor. Since the gene encoding Musashi-1 (Msi1) contains a conserved ARE in its 3' untranslated region, we focused on the possibility of a mechanistic relationship between ELAV proteins and Musashi-1 in cell fate commitment. Colocalization of neural ELAV proteins with Musashi-1 clearly shows that ELAV proteins are expressed at early stages of neural commitment, whereas interaction studies demonstrate that neural ELAV proteins exert an ARE-dependent binding activity on the Msi1 mRNA. This binding activity has functional effects, since the ELAV protein family member HuD is able to stabilize the Msi1 ARE-containing mRNA in a sequence-dependent way in a deadenylation/degradation assay. Furthermore activation of the neural ELAV proteins by phorbol esters in human SH-SY5Y cells is associated with an increase of Musashi-1 protein content in the cytoskeleton. We propose that ELAV RNA-binding proteins exert an important posttranscriptional control on Musashi-1 expression in the transition from proliferation to neural differentiation of stem/progenitor cells.
A role for the ELAV RNA-binding proteins in neural stem cells: stabilization of Msi1 mRNA / Ratti, Antonia; Fallini, Claudia; Cova, Lidia; Fantozzi, Roberto; Calzarossa, Cinzia; Zennaro, Eleonora; Pascale, ALESSIA ANGELA; Quattrone, Alessandro; Silani, Vincenzo. - In: JOURNAL OF CELL SCIENCE. - ISSN 0021-9533. - STAMPA. - 119:7(2006), pp. 1442-1452.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
| Titolo: | A role for the ELAV RNA-binding proteins in neural stem cells: stabilization of Msi1 mRNA | |
| Autori: | ||
| Data di pubblicazione: | 2006 | |
| Rivista: | ||
| Citazione: | A role for the ELAV RNA-binding proteins in neural stem cells: stabilization of Msi1 mRNA / Ratti, Antonia; Fallini, Claudia; Cova, Lidia; Fantozzi, Roberto; Calzarossa, Cinzia; Zennaro, Eleonora; Pascale, ALESSIA ANGELA; Quattrone, Alessandro; Silani, Vincenzo. - In: JOURNAL OF CELL SCIENCE. - ISSN 0021-9533. - STAMPA. - 119:7(2006), pp. 1442-1452. | |
| Abstract: | RNA-binding proteins plays a pivotal role in the development and maintenance of the nervous system. Neural ELAV proteins are key inducers of neuronal differentiation through the stabilization and/or translational enhancement of target transcripts bearing the AU-rich elements (AREs), whereas Musashi-1 maintains the stem cell proliferation state by acting as a translational repressor. Since the gene encoding Musashi-1 (Msi1) contains a conserved ARE in its 3' untranslated region, we focused on the possibility of a mechanistic relationship between ELAV proteins and Musashi-1 in cell fate commitment. Colocalization of neural ELAV proteins with Musashi-1 clearly shows that ELAV proteins are expressed at early stages of neural commitment, whereas interaction studies demonstrate that neural ELAV proteins exert an ARE-dependent binding activity on the Msi1 mRNA. This binding activity has functional effects, since the ELAV protein family member HuD is able to stabilize the Msi1 ARE-containing mRNA in a sequence-dependent way in a deadenylation/degradation assay. Furthermore activation of the neural ELAV proteins by phorbol esters in human SH-SY5Y cells is associated with an increase of Musashi-1 protein content in the cytoskeleton. We propose that ELAV RNA-binding proteins exert an important posttranscriptional control on Musashi-1 expression in the transition from proliferation to neural differentiation of stem/progenitor cells. | |
| Handle: | http://hdl.handle.net/11571/27284 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11571/27284
Copyright © 2021