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Open AccessArticle

Deacetylation of Histone H4 Accompanying Cardiomyogenesis is Weakened in HDAC1-Depleted ES Cells

1
Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, Brno 612 65, Czech Republic
2
Faculty of Sciences, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Int. J. Mol. Sci. 2018, 19(8), 2425; https://doi.org/10.3390/ijms19082425
Received: 10 July 2018 / Revised: 9 August 2018 / Accepted: 14 August 2018 / Published: 16 August 2018
(This article belongs to the Special Issue Histone Deacetylase Inhibitors in Health and Disease)
Cell differentiation into cardiomyocytes requires activation of differentiation-specific genes and epigenetic factors that contribute to these physiological processes. This study is focused on the in vitro differentiation of mouse embryonic stem cells (mESCs) induced into cardiomyocytes. The effects of clinically promising inhibitors of histone deacetylases (HDACi) on mESC cardiomyogenesis and on explanted embryonic hearts were also analyzed. HDAC1 depletion caused early beating of cardiomyocytes compared with those of the wild-type (wt) counterpart. Moreover, the adherence of embryonic bodies (EBs) was reduced in HDAC1 double knockout (dn) mESCs. The most important finding was differentiation-specific H4 deacetylation observed during cardiomyocyte differentiation of wt mESCs, while H4 deacetylation was weakened in HDAC1-depleted cells induced to the cardiac pathway. Analysis of the effect of HDACi showed that Trichostatin A (TSA) is a strong hyperacetylating agent, especially in wt mESCs, but only SAHA reduced the size of the beating areas in EBs that originated from HDAC1 dn mESCs. Additionally, explanted embryonic hearts (e15) responded to treatment with HDACi: all of the tested HDACi (TSA, SAHA, VPA) increased the levels of H3K9ac, H4ac, H4K20ac, and pan-acetylated lysines in embryonic hearts. This observation shows that explanted tissue can be maintained in a hyperacetylation state several hours after excision, which appears to be useful information from the view of transplantation strategy and the maintenance of gene upregulation via acetylation in tissue intended for transplantation. View Full-Text
Keywords: cardiomyocytes; histones H3 and H4; embryonic stem cells; epigenetics; HDAC1 cardiomyocytes; histones H3 and H4; embryonic stem cells; epigenetics; HDAC1
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MDPI and ACS Style

Arcidiacono, O.A.; Krejčí, J.; Suchánková, J.; Bártová, E. Deacetylation of Histone H4 Accompanying Cardiomyogenesis is Weakened in HDAC1-Depleted ES Cells. Int. J. Mol. Sci. 2018, 19, 2425. https://doi.org/10.3390/ijms19082425

AMA Style

Arcidiacono OA, Krejčí J, Suchánková J, Bártová E. Deacetylation of Histone H4 Accompanying Cardiomyogenesis is Weakened in HDAC1-Depleted ES Cells. International Journal of Molecular Sciences. 2018; 19(8):2425. https://doi.org/10.3390/ijms19082425

Chicago/Turabian Style

Arcidiacono, Orazio A.; Krejčí, Jana; Suchánková, Jana; Bártová, Eva. 2018. "Deacetylation of Histone H4 Accompanying Cardiomyogenesis is Weakened in HDAC1-Depleted ES Cells" Int. J. Mol. Sci. 19, no. 8: 2425. https://doi.org/10.3390/ijms19082425

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