Type 2 diabetes is associated with increased circulating levels of 3-hydroxydecanoate activating GPR84 and neutrophil migration

Randi Bonke Mikkelsen, Tulika Arora, Kajetan Trošt, Oksana Dmytriyeva, Sune Kjærsgaard Jensen, Abraham Stijn Meijnikman, Louise Elisabeth Olofsson, Dimitra Lappa, Ömrüm Aydin, Jens Nielsen, Victor Gerdes, Thomas Moritz, Arnold van de Laar, Maurits de Brauw, Max Nieuwdorp, Siv Annegrethe Hjorth, Thue Walter Schwartz, Fredrik Bäckhed

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Abstract

Obesity and diabetes are associated with inflammation and altered plasma levels of several metabolites, which may be involved in disease progression. Some metabolites can activate G protein-coupled receptors (GPCRs) expressed on immune cells where they can modulate metabolic inflammation. Here, we find that 3-hydroxydecanoate is enriched in the circulation of obese individuals with type 2 diabetes (T2D) compared with nondiabetic controls. Administration of 3-hydroxydecanoate to mice promotes immune cell recruitment to adipose tissue, which was associated with adipose inflammation and increased fasting insulin levels. Furthermore, we demonstrate that 3-hydroxydecanoate stimulates migration of primary human and mouse neutrophils, but not monocytes, through GPR84 and Gαi signaling in vitro. Our findings indicate that 3-hydroxydecanoate is a T2D-associated metabolite that increases inflammatory responses and may contribute to the chronic inflammation observed in diabetes.
Original languageEnglish
Article number105683
JournaliScience
Volume25
Issue number12
DOIs
Publication statusPublished - 22 Dec 2022

Keywords

  • Cell biology
  • Immunology
  • Pathophysiology

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