Hypomethylation of miR-17-92 cluster in lupus T cells and no significant role for genetic factors in the lupus-associated DNA methylation signature.
autoimmunity
lupus erythematosus, systemic
polymorphism, genetic
Journal
Annals of the rheumatic diseases
ISSN: 1468-2060
Titre abrégé: Ann Rheum Dis
Pays: England
ID NLM: 0372355
Informations de publication
Date de publication:
10 2022
10 2022
Historique:
received:
13
04
2022
accepted:
07
06
2022
pubmed:
17
6
2022
medline:
15
9
2022
entrez:
16
6
2022
Statut:
ppublish
Résumé
Lupus T cells demonstrate aberrant DNA methylation patterns dominated by hypomethylation of interferon-regulated genes. The objective of this study was to identify additional lupus-associated DNA methylation changes and determine the genetic contribution to epigenetic changes characteristic of lupus. Genome-wide DNA methylation was assessed in naïve CD4 In addition to the previously reported epigenetic signature in interferon-regulated genes, we observed hypomethylation in the promoter region of the miR-17-92 cluster in patients with lupus. Members of this microRNA cluster play an important role in regulating T cell proliferation and differentiation. Expression of two microRNAs in this cluster, miR-19b1 and miR-18a, showed a significant positive correlation with lupus disease activity. Among miR-18a target genes, The lupus defining epigenetic signature, characterised by robust hypomethylation of interferon-regulated genes, does not appear to be determined by genetic factors. Hypomethylation of the miR-17-92 cluster that plays an important role in T cell activation is a novel epigenetic locus for lupus.
Identifiants
pubmed: 35710306
pii: annrheumdis-2022-222656
doi: 10.1136/annrheumdis-2022-222656
pmc: PMC10259175
mid: NIHMS1901924
doi:
Substances chimiques
MIRN17 microRNA, human
0
MicroRNAs
0
Interferons
9008-11-1
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
1428-1437Subventions
Organisme : NIA NIH HHS
ID : P30 AG050911
Pays : United States
Organisme : NIAID NIH HHS
ID : R01 AI097134
Pays : United States
Organisme : NIGMS NIH HHS
ID : P20 GM103636
Pays : United States
Informations de copyright
© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.
Déclaration de conflit d'intérêts
Competing interests: None declared.
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