Profiling genome-wide DNA methylation patterns in human aortic and mitral valves
File(s)
Author(s)
Type
Journal Article
Abstract
Cardiac valves exhibit highly complex structures and specialized functions that include dynamic interactions between cells, extracellular matrix (ECM) and their hemodynamic environment. Valvular gene expression is tightly regulated by a variety of mechanisms including epigenetic factors such as histone modifications, RNA-based mechanisms and DNA methylation. To date, methylation fingerprints of non-diseased human aortic and mitral valves have not been studied. In this work we analyzed the differential methylation profiles of 12 non-diseased aortic and mitral valve tissue samples (in matched pairs). Analysis of methylation data [reduced representation bisulfite sequencing (RRBS)] of 16,101 promoters genome-wide revealed 584 differentially methylated (DM) promoters, of which 13 were reported in endothelial mesenchymal trans-differentiation (EMT), 37 in aortic and mitral valve disease and 7 in ECM remodeling. Both functional classification as well as network analysis showed that the genes associated with the DM promoters were enriched for WNT-, Cadherin-, Endothelin-, PDGF-, HIF-1 and VEGF- signaling implicated in valvular physiology and pathophysiology. Additional enrichment was detected for TGFB-, NOTCH- and Integrin- signaling involved in EMT as well as ECM remodeling. This data provides the first insight into differential regulation of human aortic and mitral valve tissue and identifies candidate genes linked to DM promoters. Our work will improve the understanding of valve biology, valve tissue engineering approaches and contributes to the identification of relevant drug targets.
Date Issued
2022-04-06
Date Acceptance
2022-03-11
Citation
Frontiers in Cardiovascular Medicine, 2022, 9
ISSN
2297-055X
Publisher
Frontiers Media S.A.
Journal / Book Title
Frontiers in Cardiovascular Medicine
Volume
9
Copyright Statement
Copyright © 2022 Halawa, Latif, Tseng, Ibrahim, Chester, Moustafa, Aguib and Yacoub. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000807665600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
CALCIFICATION
Cardiac & Cardiovascular Systems
Cardiovascular System & Cardiology
CELLS
DISEASE
DISSECTION
endothelial mesenchymal trans-differentiation (EMT)
epigenetics
EXPRESSION
extracellular matrix (ECM)
heart valves
HIF-1 signaling pathway
Life Sciences & Biomedicine
MECHANISMS
MUTATIONS
NOTCH signaling
OUTFLOW TRACT
PATHWAYS
promoters
regulation of actin cytoskeleton
Science & Technology
STENOSIS
Publication Status
Published
Article Number
840647
Date Publish Online
2022-04-06