2014
DOI: 10.1093/cvr/cvu242
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Exchange protein directly activated by cAMP 1 promotes autophagy during cardiomyocyte hypertrophy

Abstract: Altogether, these findings demonstrate that autophagy is an adaptive response to antagonize Epac1-promoted cardiomyocyte hypertrophy.

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Cited by 68 publications
(69 citation statements)
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“…Indeed, the perinuclear localization of Epac1 in cardiomyocyte is consistent with its role in the regulation of gene transcription during cardiac hypertrophic remodeling. [16][17][18] Furthermore, independently of its effect on sarcoplasmic reticulum function, Epac1 was reported to act on the myofilament compartment where it regulates the phosphorylation of sarcomeric proteins to increase myofilament Ca 2+ sensitivity. 33 Finally, Epac1 was previously found in the mitochondrion of Epac1-transfected COS-7 cells in a cell cycle-dependent manner, 34 although it was not linked to any biological function.…”
Section: Discussionmentioning
confidence: 99%
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“…Indeed, the perinuclear localization of Epac1 in cardiomyocyte is consistent with its role in the regulation of gene transcription during cardiac hypertrophic remodeling. [16][17][18] Furthermore, independently of its effect on sarcoplasmic reticulum function, Epac1 was reported to act on the myofilament compartment where it regulates the phosphorylation of sarcomeric proteins to increase myofilament Ca 2+ sensitivity. 33 Finally, Epac1 was previously found in the mitochondrion of Epac1-transfected COS-7 cells in a cell cycle-dependent manner, 34 although it was not linked to any biological function.…”
Section: Discussionmentioning
confidence: 99%
“…Compelling evidence indicate that Epac proteins induce sarcoplasmic reticulum Ca 2+ leakage 14,15 and localize at the nuclear envelope of cardiomyocytes to promote cardiac remodeling. [16][17][18] However, Epac compartmentalization is still poorly described, and its involvement in cardiomyocyte death has yet to be investigated.…”
mentioning
confidence: 99%
“…Les souris Epac1 -/-et Epac2 -/-, ainsi que les doubles knock-out, ne présentent aucune anomalie cardiaque. Ces isoformes ne semblent donc pas indispensables au développement du myocarde et au maintien de la fonction cardiaque à l'état basal [29][30][31]. Seule la délétion de Epac1 réduit le remodelage pathologique induit par l'activation chronique des -AR, ce qui confirme l'importance de Epac1 dans la signalisation -adrénergique au cours de l'hypertrophie cardiaque pathologique.…”
Section: Epac1 Et Remodelage Pathologique Cardiaqueunclassified
“…De façon très intéressante, en réponse à différents stress hypertrophiques (injection de catécholamines ou surcharge de pression), les souris Epac1 -/-présentent une meilleure contractilité cardiaque (maintien de la réserve inotrope) [30,31]. Par ailleurs, ces souris sont protégées de la survenue d'arythmies atriales [30].…”
Section: Epac1 Et Fonction Cardiaqueunclassified
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