Epigenetic regulation of inflammatory factors in adipose tissue

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Obesity is a strong risk factor for insulin resistance. Chronic low-grade tissue inflammation and systemic inflammation have been proposed as major mechanisms that promote insulin resistance in obesity. Adipose tissue has been recognized as a nexus between inflammation and metabolism, but how exactly inflammatory gene expression is orchestrated during the development of obesity is not well understood. Epigenetic modifications are defined as heritable changes in gene expression and cellular function without changes to the original DNA sequence. The major epigenetic mechanisms include DNA methylation, histone modification, noncoding RNAs, nucleopositioning/remodeling and chromatin reorganization. Epigenetic mechanisms provide a critical layer of gene regulation in response to environmental changes. Accumulating evidence supports that epigenetics plays a large role in the regulation of inflammatory genes in adipocytes and adipose-resident immune cell types. This review focuses on the association between adipose tissue inflammation in obesity and major epigenetic modifications.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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