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Altered SOCS3 DNA methylation within exon 2 is associated with increased mRNA expression in visceral adipose tissue in gestational diabetes.


ABSTRACT: Overweight/obesity is the main risk factor for gestational diabetes mellitus (GDM). In our cohort of pregnant women with GDM, n = 19, and without, n = 22, we previously reported a significant increase in SOCS3 mRNA expression (+62%) in visceral adipose tissue (VAT) according to GDM, without altered promoter DNA-methylation. Here, we examined methylation status of additional SOCS3 exon 2 regions in VAT and maternal blood. We found significantly altered methylation at specific CpG sites corresponding to aberrant mRNA expression levels of SOCS3 in VAT. We propose a potential regulatory element/region within exon 2; however, this region does not appear to be a good blood-marker representing VAT.

SUBMITTER: Rancourt RC 

PROVIDER: S-EPMC8078723 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Altered <i>SOCS3</i> DNA methylation within exon 2 is associated with increased mRNA expression in visceral adipose tissue in gestational diabetes.

Rancourt Rebecca C RC   Ott Raffael R   Schellong Karen K   Ziska Thomas T   Melchior Kerstin K   Henrich Wolfgang W   Plagemann Andreas A  

Epigenetics 20200812 5


Overweight/obesity is the main risk factor for gestational diabetes mellitus (GDM). In our cohort of pregnant women with GDM, n = 19, and without, n = 22, we previously reported a significant increase in <i>SOCS3</i> mRNA expression (+62%) in visceral adipose tissue (VAT) according to GDM, without altered promoter DNA-methylation. Here, we examined methylation status of additional <i>SOCS3</i> exon 2 regions in VAT and maternal blood. We found significantly altered methylation at specific CpG si  ...[more]

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