Scientific publications
Multiomics of the intestine-liver-adipose axis in multiple studies unveils a consistent link of the gut microbiota and the antiviral response with systemic glucose metabolism. Scientific Publication
Anna Castells-Nobau # 1 2 3 4 , José Maria Moreno-Navarrete # 5 2 4 6 , Lisset de la Vega-Correa 1 2 4 , Irene Puig 1 2 4 , Massimo Federici 7 , Jiuwen Sun 3 8 9 10 , Remy Burcelin 8 9 10 , Laurence Guzylack-Piriou 11 , Pierre Gourdy 12 13 , Laurent Cazals 12 13 , María Arnoriaga-Rodríguez 1 2 4 6 , Gema Frühbeck 4 14 , Luisa Maria Seoane 4 15 , José López-Miranda 4 16 , Francisco J Tinahones 4 17 , Carlos Dieguez 4 18 , Marc-Emmanuel Dumas 19 20 21 22 , Vicente Pérez-Brocal 23 24 , Andrés Moya 23 24 25 , Nikolaos Perakakis 26 , Geltrude Mingrone 27 , Stefan Bornstein 26 , Jose Ignacio Rodriguez Hermosa 28 , Ernesto Castro 28 , Jose Manuel Fernández-Real 5 2 4 6 , Jordi Mayneris-Perxachs 5 3 4
Background: The microbiota is emerging as a key factor in the predisposition to insulin resistance and obesity.
Objective: To understand the interplay among gut microbiota and insulin sensitivity in multiple tissues.
Design: Integrative multiomics and multitissue approach across six studies, combining euglycaemic clamp measurements (used in four of the six studies) with other measurements of glucose metabolism and insulin resistance (glycated haemoglobin (HbA1c) and fasting glucose).
Results: Several genera and species from the Proteobacteria phylum were consistently negatively associated with insulin sensitivity in four studies (ADIPOINST, n=15; IRONMET, n=121, FLORINASH, n=67 and FLOROMIDIA, n=24). Transcriptomic analysis of the jejunum, ileum and colon revealed T cell-related signatures positively linked to insulin sensitivity. Proteobacteria in the ileum and colon were positively associated with HbA1c but negatively with the number of T cells. Jejunal deoxycholic acid was negatively associated with insulin sensitivity. Transcriptomics of subcutaneous adipose tissue (ADIPOMIT, n=740) and visceral adipose tissue (VAT) (ADIPOINST, n=29) revealed T cell-related signatures linked to HbA1c and insulin sensitivity, respectively. VAT Proteobacteria were negatively associated with insulin sensitivity. Multiomics and multitissue integration in the ADIPOINST and FLORINASH studies linked faecal Proteobacteria with jejunal and liver deoxycholic acid, as well as jejunal, VAT and liver transcriptomic signatures involved in the actin cytoskeleton, insulin and T cell signalling. Fasting glucose was consistently linked to interferon-induced genes and antiviral responses in the intestine and VAT. Studies in Drosophila melanogaster validated these human insulin sensitivity-associated changes.
Conclusion: These data provide comprehensive insights into the microbiome-gut-adipose-liver axis and its impact on systemic insulin action, suggesting potential therapeutic targets.
CITATION Gut. 2024 Oct 2:gutjnl-2024-332602. doi: 10.1136/gutjnl-2024-332602
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