TET2 gene expression and 5-hydroxymethylcytosine level in multiple sclerosis peripheral blood cells - Archive ouverte HAL Access content directly
Journal Articles BBA - Biochimica et Biophysica Acta Year : 2014

TET2 gene expression and 5-hydroxymethylcytosine level in multiple sclerosis peripheral blood cells

(1, 2) , (1, 2) , (1, 2) , (1, 2) , (3) , (4, 5) , (1, 2) , (4) , (4) , (3) , (4) , (1, 2)
1
2
3
4
5

Abstract

Aberrant DNA methylation can lead to genome destabilization and to deregulated gene expression. Recently, 5-hydroxymethylcytosine (5hmC), derived from oxidation of 5-methylcytosine (5mC) by the Ten-Eleven Translo-cation (TET) enzymes, has been detected. 5hmC is now considered as a new epigenetic DNA modification with relevant roles in cell homeostasis regulating DNA demethylation and transcription. Our aim was to investigate possible changes in the DNA methylation/demethylation machinery in MS. We assessed the expression of enzymes involved in DNA methylation/demethylation in peripheral blood mononuclear cells (PBMCs) from 40 subjects with MS and 40 matched healthy controls. We performed also, DNA methylation analysis of specific promoters and analysis of global levels of 5mC and 5hmC. We show that TET2 and DNMT1 expression is significantly down-regulated in MS PBMCs and it is associated with aberrant methylation of their promoters. Furthermore , 5hmC is decreased in MS PBMCs, probably as a result of the diminished TET2 level.
Embargoed file
Embargoed file
Ne sera jamais visible
Loading...

Dates and versions

pasteur-01163745 , version 1 (15-06-2015)

Identifiers

Cite

R Calabrese, E Valentini, F Ciccarone, T Guastafierro, Maria G Bacalini, et al.. TET2 gene expression and 5-hydroxymethylcytosine level in multiple sclerosis peripheral blood cells. BBA - Biochimica et Biophysica Acta, 2014, 1842 (7), pp.1130-6. ⟨10.1016/j.bbadis.2014.04.010⟩. ⟨pasteur-01163745⟩

Collections

RIIP
17 View
2 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More