Skeletal muscle enhancer interactions identify genes controlling whole-body metabolism

Kristine Williams, Lars R. Ingerslev, Jette Bork-Jensen, Martin Wohlwend, Ann Normann Hansen, Lewin Small, Rasmus Ribel-Madsen, Arne Astrup, Oluf Pedersen, Johan Auwerx, Christopher T. Workman, Niels Grarup, Torben Hansen, Romain Barrès*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Obesity and type 2 diabetes (T2D) are metabolic disorders influenced by lifestyle and genetic factors that are characterized by insulin resistance in skeletal muscle, a prominent site of glucose disposal. Numerous genetic variants have been associated with obesity and T2D, of which the majority are located in non-coding DNA regions. This suggests that most variants mediate their effect by altering the activity of gene-regulatory elements, including enhancers. Here, we map skeletal muscle genomic enhancer elements that are dynamically regulated after exposure to the free fatty acid palmitate or the inflammatory cytokine TNFα. By overlapping enhancer positions with the location of disease-associated genetic variants, and resolving long-range chromatin interactions between enhancers and gene promoters, we identify target genes involved in metabolic dysfunction in skeletal muscle. The majority of these genes also associate with altered whole-body metabolic phenotypes in the murine BXD genetic reference population. Thus, our combined genomic investigations identified genes that are involved in skeletal muscle metabolism.
Original languageEnglish
Article number2695
JournalNature Communications
Volume11
Issue number1
Number of pages16
ISSN2041-1723
DOIs
Publication statusPublished - 2020

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