首页> 外文会议>Biomedical Engineering and Biotechnology (iCBEB), 2012 International Conference on >CREB-binding Protein (CBP) p300 Enhanced the Expression of Cardiac Hypertrophy-Specific Genes Activated by Myocardin-Related Transcription Factor-A (MRTF-A)
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CREB-binding Protein (CBP) p300 Enhanced the Expression of Cardiac Hypertrophy-Specific Genes Activated by Myocardin-Related Transcription Factor-A (MRTF-A)

机译:CREB结合蛋白(CBP)p300增强心肌相关转录因子-A(MRTF-A)激活的心肌肥大基因的表达。

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Myocardin-related transcription factor-A (MRTF-A) is a remarkably potent transcriptional co activator expressed in a broad range of embryonic and adult tissues. It shows that MRTF-A might induce cardiac hypertrophy in our previous studys. However, it remains poorly understood about the effects of MRTF-A in cardiac hypertrophy. Here, we show that the p300, a his tone acetyltransferase, enhanced transcriptional activity of MRTF-A. Conversely, class II his tone deacetylases HDAC5 suppress cardiac-special genes activation by MRTF-A and p300. These findings point that MRTF-A maybe a nexus for regulation of cardiac hypertrophic-special genes expression by changes in chromatin acetylation. Our results provide novel evidence to explore the roles of MRTFs and their co-factors in cardiac hypertrophy for the future studies.
机译:心肌相关转录因子-A(MRTF-A)是在多种胚胎和成年组织中表达的非常有效的转录共激活因子。它表明,在我们以前的研究中,MRTF-A可能诱发心脏肥大。然而,关于MRTF-A在心脏肥大中的作用仍然知之甚少。在这里,我们显示了p300,一种他的音调乙酰转移酶,增强了MRTF-A的转录活性。相反,II类他的音调脱乙酰基酶HDAC5抑制MRTF-A和p300激活的心脏特殊基因。这些发现表明,MRTF-A可能通过染色质乙酰化的变化来调节心脏肥大性特殊基因的表达。我们的结果提供了新的证据,以探索MRTF及其辅因子在心脏肥大中的作用,以备将来研究之用。

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