1. Distinct T cell subsets in adipose tissue are associated with obesity.
- Author
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Haugstøyl ME, Cornillet M, Strand K, Stiglund N, Sun D, Lawrence-Archer L, Hjellestad ID, Sparrelid E, Busch C, Hjelmesaeth J, Hertel JK, Ponzetta A, Mellgren G, Fernø J, and Björkström NK
- Subjects
- Humans, Autophagy immunology, Ceramides immunology, Adipose Tissue immunology, Adipose Tissue pathology, Inflammation blood, Inflammation genetics, Inflammation immunology, Insulin Resistance genetics, Insulin Resistance immunology, Obesity blood, Obesity genetics, Obesity immunology, Obesity pathology, T-Lymphocyte Subsets immunology, T-Lymphocyte Subsets pathology
- Abstract
Adipose tissue inflammation is a driving factor for the development of obesity-associated metabolic disturbances, and a role of adipose tissue T cells in initiating the pro-inflammatory signaling is emerging. However, data on human adipose tissue T cells in obesity are limited, reflected by the lack of phenotypic markers to define tissue-resident T cell subsets. In this study, we performed a deep characterization of T cells in blood and adipose tissue depots using multicolor flow cytometry and RNA sequencing. We identified distinct subsets of T cells associated with obesity expressing the activation markers, CD26 and CCR5, and obesity-specific genes that are potentially engaged in activating pro-inflammatory pathway, including ceramide signaling, autophagy, and IL-6 signaling. These findings increase our knowledge on the heterogeneity of T cells in adipose tissue and on subsets that may play a role in obesity-related pathogenesis., (© 2022 The Authors. European Journal of Immunology published by Wiley-VCH GmbH.)
- Published
- 2023
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