Epigenetic changes in adipose tissue

Epigenetic changes in adipose tissue refer to the dynamic and reversible modifications to DNA and histone proteins—such as DNA methylation and histone acetylation—that regulate gene expression without altering the genetic sequence [1, 13]. These modifications are heavily influenced by environmental factors like high-fat diets, sedentary lifestyles, and aging, playing a crucial role in the development of obesity and type 2 diabetes by altering the expression of key metabolic genes like PPARG, ESR1, and GLUT4 [6, 11, 15]. In obese states, specific epigenetic marks often lead to impaired adipogenesis, increased chronic inflammation, and systemic insulin resistance [3, 7]. While not a single therapeutic target, the enzymes responsible for these changes, such as DNA methyltransferases (e.g., DNMT3A) and histone deacetylases (e.g., HDAC6), are being explored as potential drug targets to restore metabolic health [7, 12]. Understanding these tissue-specific epigenetic signatures also provides valuable biomarkers, such as the methylation status of the HIF3A or PPARG loci, for metabolic risk assessment and therapeutic monitoring [4, 18].

Other names

Adipose tissue epigeneticsAdipocyte epigenomeEpigenetic modifications in adipose tissueDNA methylation in fatAdipose chromatin remodeling

Modulation of gene expression through covalent modifications of DNA (methylation) and histones (acetylation, methylation), or through RNA-mediated silencing, which alters chromatin structure and accessibility for transcriptional machinery.