| |  Online-Ressource |
|---|
| Verfasst von: | Backs, Johannes [VerfasserIn]  |
|---|
| | Worst, Barbara C. [VerfasserIn] |
|---|
| | Lehmann, Lorenz [VerfasserIn] |
|---|
| | Patrick, David M. [VerfasserIn] |
|---|
| | Jebessa, Zegeye Hailu [VerfasserIn] |
|---|
| | Kreußer, Michael [VerfasserIn] |
|---|
| | Sun, Qiang [VerfasserIn] |
|---|
| | Chen, Lan [VerfasserIn] |
|---|
| | Heft, Claudia [VerfasserIn] |
|---|
| | Katus, Hugo [VerfasserIn] |
|---|
| | Olson, Eric N. [VerfasserIn] |
|---|
| Titel: | Selective repression of MEF2 activity by PKA-dependent proteolysis of HDAC4 |
|---|
| Verf.angabe: | Johannes Backs, Barbara C. Worst, Lorenz H. Lehmann, David M. Patrick, Zegeye Jebessa, Michael M. Kreusser, Qiang Sun, Lan Chen, Claudia Heft, Hugo A. Katus, and Eric N. Olson |
|---|
| E-Jahr: | 2011 |
|---|
| Jahr: | October 31 2011 |
|---|
| Umfang: | 13 S. |
|---|
| Fussnoten: | Gesehen am 25.03.2022 |
|---|
| Titel Quelle: | Enthalten in: The journal of cell biology |
|---|
| Ort Quelle: | New York, NY : Rockefeller Univ. Press, 1962 |
|---|
| Jahr Quelle: | 2011 |
|---|
| Band/Heft Quelle: | 195(2011), 3, Seite 403-415 |
|---|
| ISSN Quelle: | 1540-8140 |
|---|
| Abstract: | Histone deacetylase 4 (HDAC4) regulates numerous gene expression programs through its signal-dependent repression of myocyte enhancer factor 2 (MEF2) and serum response factor (SRF) transcription factors. In cardiomyocytes, calcium/calmodulin-dependent protein kinase II (CaMKII) signaling promotes hypertrophy and pathological remodeling, at least in part by phosphorylating HDAC4, with consequent stimulation of MEF2 activity. In this paper, we describe a novel mechanism whereby protein kinase A (PKA) overcomes CaMKII-mediated activation of MEF2 by regulated proteolysis of HDAC4. PKA induces the generation of an N-terminal HDAC4 cleavage product (HDAC4-NT). HDAC4-NT selectively inhibits activity of MEF2 but not SRF, thereby antagonizing the prohypertrophic actions of CaMKII signaling without affecting cardiomyocyte survival. Thus, HDAC4 functions as a molecular nexus for the antagonistic actions of the CaMKII and PKA pathways. These findings have implications for understanding the molecular basis of cardioprotection and other cellular processes in which CaMKII and PKA exert opposing effects. |
|---|
| DOI: | doi:10.1083/jcb.201105063 |
|---|
| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1083/jcb.201105063 |
|---|
| | DOI: https://doi.org/10.1083/jcb.201105063 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| K10plus-PPN: | 1796722553 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
Selective repression of MEF2 activity by PKA-dependent proteolysis of HDAC4 / Backs, Johannes [VerfasserIn]; October 31 2011 (Online-Ressource)
