Dietary vitamin A impacts DNA methylation patterns of adipogenesis-related genes in suckling rats

Archives of Biochemistry and Biophysics
A ArreguínM Luisa Bonet

Abstract

We previously showed that vitamin A supplementation in early life impacts white adipose tissue (WAT) biology. We here studied the vitamin's effects on DNA methylation of genes crucial for WAT cell development, determination and metabolism. CpG promoter methylation and mRNA expression of Pparg, Zfp423, Pcna, and Rbp4 was compared in inguinal WAT of 21-day-old rats supplemented during the suckling period with vehicle (controls) or an emulsion of vitamin A as retinyl ester (RE) or β-carotene (BC). The methylation profile of promoters was affected by vitamin A supplementation with pronounced differences between the RE and BC groups. In the RE group, hypermethylation of the Rbp4 (at multiple CpGs) and the Pparg2 (at a specific CpG) promoters and hypomethylation of the Pcna promoter (at multiple CpGs) was observed, together with inverse changes in gene expression levels. In the BC group, hypomethylation of the Rbp4 and hypermethylation of the Pcna promoter at distinct CpGs was observed, with no effects on gene expression. In both supplemention groups, hypomethylation and increased expression was found for Zfp423. Thus, modest vitamin A supplementation in early postnatal life impacts methylation marks in developing WAT. Differential e...Continue Reading

Citations

Mar 4, 2020·Biomedicines·Maria Teresa ValentiLuca Dalle Carbonare
Jun 12, 2020·Animal : an International Journal of Animal Bioscience·M GasselinH Jammes
Jul 1, 2020·International Journal of Molecular Sciences·Ekaterina ProshkinaAlexey Moskalev
Oct 10, 2019·Journal of Applied Oral Science : Revista FOB·Xuan ShuShenyou Shu
Dec 11, 2019·Nutrients·Lucie MarousezDelphine Eberlé
Dec 4, 2019·Biochimica Et Biophysica Acta. Molecular and Cell Biology of Lipids·Johannes von LintigSrinivasagan Ramkumar
Mar 3, 2020·Biochimica Et Biophysica Acta. Molecular and Cell Biology of Lipids·M Luisa BonetAndreu Palou
Sep 24, 2021·The British Journal of Nutrition·Kasimu Ghandi IbrahimMustapha Umar Imam

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