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Epigenetics and expression of key genes associated with cardiac fibrosis: NLRP3, MMP2, MMP9, CCN2/CTGF and AGT.


ABSTRACT: Aims: Excessive inflammatory signaling and pathological remodeling of the extracellular matrix drive cardiac fibrosis and require changes in gene expression. Materials and methods: Using bioinformatics, both tissue-specific expression profiles and epigenomic profiles of some genes critical for cardiac fibrosis were examined, namely, NLRP3, MMP2, MMP9, CCN2/CTGF, AGT (encodes angiotensin II precursors) and hsa-mir-223 (post-transcriptionally regulates NLRP3). Results: In monocytes, neutrophils, fibroblasts, venous cells, liver and brain, enhancers or super-enhancers were found that correlate with high expression of these genes. One enhancer extended into a silent gene neighbor. These enhancers harbored tissue-specific foci of DNA hypomethylation, open chromatin and transcription factor binding. Conclusions: This study identified previously undescribed enhancers containing hypomethylated transcription factor binding subregions that are predicted to regulate expression of these cardiac fibrosis-inducing genes.

SUBMITTER: Chandra S 

PROVIDER: S-EPMC7907962 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Epigenetics and expression of key genes associated with cardiac fibrosis: <i>NLRP3, MMP2, MMP9, CCN2/CTGF</i> and <i>AGT</i>.

Chandra Sruti S   Ehrlich Kenneth C KC   Lacey Michelle M   Baribault Carl C   Ehrlich Melanie M  

Epigenomics 20210204 3


<b>Aims:</b> Excessive inflammatory signaling and pathological remodeling of the extracellular matrix drive cardiac fibrosis and require changes in gene expression. <b>Materials and methods:</b> Using bioinformatics, both tissue-specific expression profiles and epigenomic profiles of some genes critical for cardiac fibrosis were examined, namely, <i>NLRP3, MMP2, MMP9, CCN2/CTGF, AGT</i> (encodes angiotensin II precursors) and <i>hsa-mir-223</i> (post-transcriptionally regulates <i>NLRP3</i>). <b  ...[more]

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