Hepatic Lipid Accumulation Alters Global Histone H3 Lysine 9 and 4Trimethylation in the Peroxisome Proliferator-Activated Receptor AlphaNetwork

Collection with item attached
2012
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/479793.do
DOI
10.1371/journal.pone.0044345
Title
Hepatic Lipid Accumulation Alters Global Histone H3 Lysine 9 and 4Trimethylation in the Peroxisome Proliferator-Activated Receptor AlphaNetwork
Description
This study was supported by the Technology Development Program forFisheries of the Ministry for Food, Agriculture, Forestry and Fisheries,Republic of Korea (iPET, F20926409H220000110), and the Basic ScienceResearch Program of the National Research Foundation of Korea (NRF),funded by the Ministry of Education, Science and Technology(20100028180). The funders had no role in study design, data collectionand analysis, decision to publish, or preparation of the manuscript.
abstract
Recent data suggest that the etiology of several metabolic diseases is closely associated with transcriptome alteration by aberrant histone methylation. We performed DNA microarray and ChIP-on-chip analyses to examine transcriptome profiling and trimethylation alterations to identify the genomic signature of nonalcoholic fatty liver disease (NAFLD), the most common form of chronic liver disease. Transcriptome analysis showed that steatotic livers in high-fat diet-fed apolipoprotein E2 mice significantly altered the expression of approximately 70% of total genes compared with normal diet-fed control livers, suggesting that hepatic lipid accumulation induces dramatic alterations in gene expression in vivo. Also, pathway analysis suggested that genes encoding chromatin-remodeling enzymes, such as jumonji C-domain-containing histone demethylases that regulate histone H3K9 and H3K4 trimethylation (H3K9me3, H3K4me3), were significantly altered in steatotic livers. Thus, we further investigated the global H3K9me3 and H3K4me3 status in lipid-accumulated mouse primary hepatocytes by ChIP-on-chip analysis. Results showed that hepatic lipid accumulation induced aberrant H3K9me3 and H3K4me3 status in peroxisome proliferator-activated receptor alpha and hepatic lipid catabolism network genes, reducing their mRNA expression compared with non-treated control hepatocytes. This study provides the first evidence that epigenetic regulation by H3K9me3 and H3K4me3 in hepatocytes may be involved in hepatic steatosis and the pathogenesis of NAFLD. Thus, control of H3K9me3 and H3K4me3 represents a potential novel NAFLD prevention and treatment strategy.
provenance
Made available in Cube on 2018-09-28T13:08:54Z (GMT). No. of bitstreams: 0
language
English
author
Jun, Hee-Jin
Kim, Jinyoung
Hoang, Minh-Hien
Lee, Sung-Joon
accessioned
2018-09-28T13:08:54Z
available
2018-09-28T13:08:54Z
issued
2012
citation
PLOS ONE(7): 9
issn
1932-6203
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/479793.do
Funder
교육과학기술부
Funding Program
일반연구자지원
Project ID
1345155891
Jurisdiction
Rep.of Korea
Project Name
Investigation of anti-obesity effects of natural pigment single compounds
rights
openAccess
type
article


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