Rtf1 Transcriptionally Regulates Neonatal and Adult Cardiomyocyte Biology.
Rtf1 Transcriptionally Regulates Neonatal and Adult Cardiomyocyte Biology.
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RTF1转录调节新生儿和成人心肌细胞生物学。
DOI:
10.3390/jcdd10050221
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发表时间:
2023-05-20
影响因子:
2.4
通讯作者:
中科院分区:
文献类型:
--
作者:
The PAF1 complex component Rtf1 is an RNA Polymerase II-interacting transcription regulatory protein that promotes transcription elongation and the co-transcriptional monoubiquitination of histone 2B. Rtf1 plays an essential role in the specification of cardiac progenitors from the lateral plate mesoderm during early embryogenesis, but its requirement in mature cardiac cells is unknown. Here, we investigate the importance of Rtf1 in neonatal and adult cardiomyocytes using knockdown and knockout approaches. We demonstrate that loss of Rtf1 activity in neonatal cardiomyocytes disrupts cell morphology and results in a breakdown of sarcomeres. Similarly, Rtf1 ablation in mature cardiomyocytes of the adult mouse heart leads to myofibril disorganization, disrupted cell–cell junctions, fibrosis, and systolic dysfunction. Rtf1 knockout hearts eventually fail and exhibit structural and gene expression defects resembling dilated cardiomyopathy. Intriguingly, we observed that loss of Rtf1 activity causes a rapid change in the expression of key cardiac structural and functional genes in both neonatal and adult cardiomyocytes, suggesting that Rtf1 is continuously required to support expression of the cardiac gene program.
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影响因子:
64.5
作者:
Bai X;Kim J;Yang Z;Jurynec MJ;Akie TE;Lee J;LeBlanc J;Sessa A;Jiang H;DiBiase A;Zhou Y;Grunwald DJ;Lin S;Cantor AB;Orkin SH;Zon LI
通讯作者:
Zon LI
影响因子:
5.8
作者:
Gu, Zuguang;Eils, Roland;Schlesner, Matthias
通讯作者:
Schlesner, Matthias
影响因子:
3.7
作者:
Czeschik JC;Bauer P;Buiting K;Dufke C;Guillén-Navarro E;Johnson DS;Koehler U;López-González V;Lüdecke HJ;Male A;Morrogh D;Rieß A;Tzschach A;Wieczorek D;Kuechler A
通讯作者:
Kuechler A
影响因子:
3.7
作者:
Fan X;Hughes BG;Ali MA;Cho WJ;Lopez W;Schulz R
通讯作者:
Schulz R
DOI:
10.1073/pnas.0910177106
发表时间:
2009-10-27
影响因子:
11.1
作者:
Adelman, Karen;Kennedy, Megan A.;Rogatsky, Inez
通讯作者:
Rogatsky, Inez