Effects of AMPK on the transcriptional activity of FOXO1 and ubiquitin ligase MuRF1 expression in rat cardiomyocytes / 南方医科大学学报
Journal of Southern Medical University
;
(12): 2419-2422, 2010.
Artigo
em Chinês
| WPRIM
| ID: wpr-323646
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effects of AICAR on the activity of transcription factor FOXO1 and expression of ubiquitin ligase MuRF1 in rat cardiomyocytes, and explore the possible role of AMP-activated protein kinase (AMPK) in proteolysis pathways.</p><p><b>METHODS</b>In vitro cultured neonatal rat cardiac myocytes were treated with AICAR, and Western blotting was used to detect the phosphorylation of FOXO1 and expression of MuRF1 in the cells.</p><p><b>RESULTS</b>AICAR activated AMPK in rat cardiac myocytes. Activated AMPK significantly inhibited the phosphorylation of FOXO1 and increased MuRF1 protein expression.</p><p><b>CONCLUSION</b>AMPK may regulate proteolysis by activating FOXO1 transcription factor and up-regulating MuRF1 expression.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Farmacologia
/
Ribonucleotídeos
/
Células Cultivadas
/
Ratos Sprague-Dawley
/
Miócitos Cardíacos
/
Ubiquitina-Proteína Ligases
/
Fatores de Transcrição Forkhead
/
Proteínas Quinases Ativadas por AMP
/
Proteínas com Motivo Tripartido
/
Aminoimidazol Carboxamida
Limite:
Animais
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2010
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS