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- W4313009816 abstract "Proliferation of cardiac myocytes is accompanied by increases in cell mass to maintain myocyte size in fetal heart. In adult cardiac myocytes, cell growth becomes uncoupled from proliferation after growth stimuli, resulting in hypertrophic growth. Both proliferation and hypertrophy growth of cardiac myocytes require more protein synthesis. Brf1 (TF IIB-related factor 1) and Pol III genes (RNA Polymerase III-dependent genes) are the dominant factors of protein produce. Brf1 is a key regulator for Pol III genes. Cardiac hypertrophy is a critical risk factor for cardiovascular disease, including heart failure, arrhythmia, and sudden death. Cardiac hypertrophy involves both the processes of embryonic gene expression and transcriptional reprogramming. The processes are tightly modulated by different signal pathways and epigenetic regulation. Diabetic cardiomyopathy is associated with an increased risk for heart failure and death in patients with diabetes. To explore the molecular mechanism of cardiac hypertrophy, we investigate the alterations of Brf1 and Pol III gene transcription under glucose treatment by using cell culture model and animal model. We have found that glucose increases Brf1 expression and Pol III gene transcription. We identified that these genes are mediated by JNK1, MSK1, pAMPK and phosphorylated histone H3. inhibiting the pathways decrease Brf1 expression, reduce Pol III gene transcription, consequently repression of myocytes growth. It implies that developing an effective inhibitor to repress Brf1 expression may provide a potential approach for the therapy of cardiac hypertrophy. More studies on cardiac hypertrophy are going in our laboratory." @default.
- W4313009816 created "2023-01-05" @default.
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- W4313009816 date "2022-08-05" @default.
- W4313009816 modified "2023-10-17" @default.
- W4313009816 title "Abstract P2020: A Novel Molecular Mechanism Of Cardiac Hypertrophy" @default.
- W4313009816 doi "https://doi.org/10.1161/res.131.suppl_1.p2020" @default.
- W4313009816 hasPublicationYear "2022" @default.
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