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Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains
The past decade has resulted in an increase in the knowledge of molecular mechanisms underlying brain injury induced by intracerebral hemorrhage (ICH). Recent advances have provided a link between epigenetic modification and the regulation of gene expression. 5-hydroxymethylcytosine (5hmC) converted...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dove Medical Press
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4801193/ https://www.ncbi.nlm.nih.gov/pubmed/27042073 http://dx.doi.org/10.2147/NDT.S97456 |
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author | Tang, Yilin Han, Sha Asakawa, Tetsuya Luo, Yunhe Han, Xiang Xiao, Baoguo Dong, Qiang Wang, Liang |
author_facet | Tang, Yilin Han, Sha Asakawa, Tetsuya Luo, Yunhe Han, Xiang Xiao, Baoguo Dong, Qiang Wang, Liang |
author_sort | Tang, Yilin |
collection | PubMed |
description | The past decade has resulted in an increase in the knowledge of molecular mechanisms underlying brain injury induced by intracerebral hemorrhage (ICH). Recent advances have provided a link between epigenetic modification and the regulation of gene expression. 5-hydroxymethylcytosine (5hmC) converted from 5-methylcytosine by the ten-eleven translocation (TET) family of proteins has emerged as a new epigenetic modification. While the dynamics of 5hmC during cerebral ischemia have recently been reported, whether 5hmC is involved in ICH remains unexplored. In this study, we investigated the effects of ICH on DNA hydroxymethylation. We showed that the global level of 5hmC rapidly decreased as early as 24 hours after ICH and persisted until 72 hours. Furthermore, the level of 5hmC in the CpG-rich regions of Akt2, Pdpk1 and Vegf genes was significantly decreased with a minimum level observed at 48 hours or 72 hours. Decreased 5hmC was observed in parallel with an increase in 5-methylcytosine over this time course, and mRNA levels of Akt2, Pdpk1 and Vegf were downregulated upon ICH injury. Finally, Tet1, Tet2 and Tet3 mRNA levels were dramatically decreased in the ICH brain. Our study for the first time established the correlation between DNA hydroxymethylation and ICH injury. Further investigations should examine whether 5hmC modification could be a therapeutic target for the treatment of ICH injury. |
format | Online Article Text |
id | pubmed-4801193 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Dove Medical Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-48011932016-04-01 Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains Tang, Yilin Han, Sha Asakawa, Tetsuya Luo, Yunhe Han, Xiang Xiao, Baoguo Dong, Qiang Wang, Liang Neuropsychiatr Dis Treat Original Research The past decade has resulted in an increase in the knowledge of molecular mechanisms underlying brain injury induced by intracerebral hemorrhage (ICH). Recent advances have provided a link between epigenetic modification and the regulation of gene expression. 5-hydroxymethylcytosine (5hmC) converted from 5-methylcytosine by the ten-eleven translocation (TET) family of proteins has emerged as a new epigenetic modification. While the dynamics of 5hmC during cerebral ischemia have recently been reported, whether 5hmC is involved in ICH remains unexplored. In this study, we investigated the effects of ICH on DNA hydroxymethylation. We showed that the global level of 5hmC rapidly decreased as early as 24 hours after ICH and persisted until 72 hours. Furthermore, the level of 5hmC in the CpG-rich regions of Akt2, Pdpk1 and Vegf genes was significantly decreased with a minimum level observed at 48 hours or 72 hours. Decreased 5hmC was observed in parallel with an increase in 5-methylcytosine over this time course, and mRNA levels of Akt2, Pdpk1 and Vegf were downregulated upon ICH injury. Finally, Tet1, Tet2 and Tet3 mRNA levels were dramatically decreased in the ICH brain. Our study for the first time established the correlation between DNA hydroxymethylation and ICH injury. Further investigations should examine whether 5hmC modification could be a therapeutic target for the treatment of ICH injury. Dove Medical Press 2016-03-15 /pmc/articles/PMC4801193/ /pubmed/27042073 http://dx.doi.org/10.2147/NDT.S97456 Text en © 2016 Tang et al. This work is published and licensed by Dove Medical Press Limited The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. |
spellingShingle | Original Research Tang, Yilin Han, Sha Asakawa, Tetsuya Luo, Yunhe Han, Xiang Xiao, Baoguo Dong, Qiang Wang, Liang Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains |
title | Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains |
title_full | Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains |
title_fullStr | Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains |
title_full_unstemmed | Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains |
title_short | Effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains |
title_sort | effects of intracerebral hemorrhage on 5-hydroxymethylcytosine modification in mouse brains |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4801193/ https://www.ncbi.nlm.nih.gov/pubmed/27042073 http://dx.doi.org/10.2147/NDT.S97456 |
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