Integrating GRK2 and NFkappaB in the Pathophysiology of Cardiac Hypertrophy
G protein coupled receptor kinase type 2 (GRK2) plays an important role in the development and maintenance of cardiac hypertrophy and heart failure even if its exact role is still unknown. In this study, we assessed the effect of GRK2 on the regulation of cardiac hypertrophy. In H9C2 cells, GRK2 overexpression increased atrial natriuretic factor (ANF) activity and enhanced phenylephrine-induced ANF response, and this is associated with an increase of NFκB transcriptional activity. The kinase dead mutant and a synthetic inhibitor of GRK2 activity exerted the opposite effect, suggesting that GRK2 regulates hypertrophy through upregulation of NFκB activity in a phosphorylation-dependent manner. In two different in vivo models of left ventricle hypertrophy (LVH), the selective inhibition of GRK2 activity prevented hypertrophy and reduced NFκB transcription activity. Our results suggest a previously undisclosed role for GRK2 in the regulation of hypertrophic responses and propose GRK2 as potential therapeutic target for limiting LVH.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:8 |
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| Enthalten in: |
Journal of cardiovascular translational research - 8(2015), 8 vom: 29. Nov., Seite 493-502 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sorriento, Daniela [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 07.09.2016 Date Revised 10.12.2019 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s12265-015-9646-0 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 100 | 1 | |a Sorriento, Daniela |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Integrating GRK2 and NFkappaB in the Pathophysiology of Cardiac Hypertrophy |
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| 520 | |a G protein coupled receptor kinase type 2 (GRK2) plays an important role in the development and maintenance of cardiac hypertrophy and heart failure even if its exact role is still unknown. In this study, we assessed the effect of GRK2 on the regulation of cardiac hypertrophy. In H9C2 cells, GRK2 overexpression increased atrial natriuretic factor (ANF) activity and enhanced phenylephrine-induced ANF response, and this is associated with an increase of NFκB transcriptional activity. The kinase dead mutant and a synthetic inhibitor of GRK2 activity exerted the opposite effect, suggesting that GRK2 regulates hypertrophy through upregulation of NFκB activity in a phosphorylation-dependent manner. In two different in vivo models of left ventricle hypertrophy (LVH), the selective inhibition of GRK2 activity prevented hypertrophy and reduced NFκB transcription activity. Our results suggest a previously undisclosed role for GRK2 in the regulation of hypertrophic responses and propose GRK2 as potential therapeutic target for limiting LVH | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
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| 650 | 4 | |a Left ventricular hypertrophy | |
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| 700 | 1 | |a Santulli, Gaetano |e verfasserin |4 aut | |
| 700 | 1 | |a Franco, Antonietta |e verfasserin |4 aut | |
| 700 | 1 | |a Cipolletta, Ersilia |e verfasserin |4 aut | |
| 700 | 1 | |a Napolitano, Luigi |e verfasserin |4 aut | |
| 700 | 1 | |a Gambardella, Jessica |e verfasserin |4 aut | |
| 700 | 1 | |a Gomez-Monterrey, Isabel |e verfasserin |4 aut | |
| 700 | 1 | |a Campiglia, Pietro |e verfasserin |4 aut | |
| 700 | 1 | |a Trimarco, Bruno |e verfasserin |4 aut | |
| 700 | 1 | |a Iaccarino, Guido |e verfasserin |4 aut | |
| 700 | 1 | |a Ciccarelli, Michele |e verfasserin |4 aut | |
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