Global Differences in Specific Histone H3 Methylation Are Associated with Overweight and Type 2 Diabetes
Overview
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Background: Epidemiological evidence indicates yet unknown epigenetic mechanisms underlying a propensity for overweight and type 2 diabetes. We analyzed the extent of methylation at lysine 4 and lysine 9 of histone H3 in primary human adipocytes from 43 subjects using modification-specific antibodies.
Results: The level of lysine 9 dimethylation was stable, while adipocytes from type 2 diabetic and non-diabetic overweight subjects exhibited about 40% lower levels of lysine 4 dimethylation compared with cells from normal-weight subjects. In contrast, trimethylation at lysine 4 was 40% higher in adipocytes from overweight diabetic subjects compared with normal-weight and overweight non-diabetic subjects. There was no association between level of modification and age of subjects.
Conclusions: The findings define genome-wide molecular modifications of histones in adipocytes that are directly associated with overweight and diabetes, and thus suggest a molecular basis for existing epidemiological evidence of epigenetic inheritance.
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Yang Y, Luan Y, Feng Q, Chen X, Qin B, Ren K Front Pharmacol. 2022; 12:807413.
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Liu M, Espinosa-Diez C, Mahan S, Du M, Nguyen A, Hahn S Dev Cell. 2021; 56(19):2765-2782.e10.
PMID: 34582749 PMC: 8567421. DOI: 10.1016/j.devcel.2021.09.001.
Adipose Tissue Epigenetic Profile in Obesity-Related Dysglycemia - A Systematic Review.
Andrade S, Morais T, Sandovici I, Seabra A, Constancia M, Monteiro M Front Endocrinol (Lausanne). 2021; 12:681649.
PMID: 34290669 PMC: 8288106. DOI: 10.3389/fendo.2021.681649.
Epigenetic Regulation of Adipogenesis in Development of Metabolic Syndrome.
Pant R, Firmal P, Shah V, Alam A, Chattopadhyay S Front Cell Dev Biol. 2021; 8:619888.
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Lo Re O, Maugeri A, Hruskova J, Jakubik J, Kucera J, Bienertova-Vasku J Clin Epigenetics. 2020; 12(1):2.
PMID: 31892362 PMC: 6938639. DOI: 10.1186/s13148-019-0797-8.