Methylation profiling

Dataset Information

0

5-hydroxymethylcytosine-mediated alteration of transposon activity associated with Preeclampsia


ABSTRACT: Preeclampsia and gestational diabetes mellitus (GDM) are two of the most common clinical conditions during pregnancy that could result in adverse utero environments of the fetus. Fetal exposure to poor environments in uterus also raises the risk of future adulthood disorders known as fetal origins of adult disease (FOAD). Epigenetic modifications like cytosine methylation and histone modification have been proposed to be involved in FOAD. Recent research has implicated 5-hydroxymethylcytosine (5hmC), a DNA base derived from 5-methylcytosine (5mC) via oxidation by ten-eleven translocation (Tet) enzymes, in DNA methylation-related plasticity. Here we show that the expression of Tet2 and 5hmC abundance significantly altered in the umbilical vessels of preeclampsia. Genome-wide profiling of 5hmC revealed differentially hydroxymethylated regions (DhMRs) associated with preeclampsia and GDM, and DhMRs were enriched among the genes involved in unique biological pathways for each condition. In particular, 5hmC significantly changed in selective transposons and led to the alteration of transposon activity in preeclampsia. The 5hmC-mediated alteration of transposon activity was further confirmed using established hypoxia cell culture model and could be rescued by Vitamin C, a known activator of Tet proteins. Together our results suggest that adverse utero environments induced by preeclampsia could influence 5hmC-mediated epigenetic profile and contribute to FOAD.

ORGANISM(S): Homo sapiens

PROVIDER: GSE75941 | GEO | 2016/05/09

SECONDARY ACCESSION(S): PRJNA305754

REPOSITORIES: GEO

Dataset's files

Source:
Action DRS
Other
Items per page:
1 - 1 of 1

Similar Datasets

2019-12-09 | GSE134927 | GEO
2015-09-08 | GSE67188 | GEO
2015-09-08 | E-GEOD-67188 | biostudies-arrayexpress
2013-03-08 | E-GEOD-40810 | biostudies-arrayexpress
2013-03-08 | GSE40810 | GEO
2018-05-26 | GSE107012 | GEO
2018-08-01 | GSE103552 | GEO
2018-08-01 | GSE106099 | GEO
2021-11-17 | GSE165370 | GEO
2016-10-07 | GSE57700 | GEO