Detailed transcriptional landscape of peripheral blood points to increased neutrophil activation in treatment-naïve inflammatory bowel disease /

Simonas Juzėnas; Matthias Hübenthal; Carl Mårten Lindqvist; Robert Kruse; Tim Alexander Steiert; Frauke Degenhardt; Dominik Schulte; Susanna Nikolaus; Sebastian Zeissig; Daniel Bergemalm; Sven Almer; Henrik Hjortswang; Francesca Bresso; Nina Strüning; Juozas Kupčinskas; Andreas Keller; Wolfgang Lieb; Philip Rosenstiel; Stefan Schreiber; Mauro D'Amato; Jonas Halfvarson; Georg Hemmrich-Stanisak; Andre Franke

doi:10.1093/ecco-jcc/jjac003

Title	Detailed transcriptional landscape of peripheral blood points to increased neutrophil activation in treatment-naïve inflammatory bowel disease /
Authors	Juzėnas, Simonas ; Hübenthal, Matthias ; Lindqvist, Carl Mårten ; Kruse, Robert ; Steiert, Tim Alexander ; Degenhardt, Frauke ; Schulte, Dominik ; Nikolaus, Susanna ; Zeissig, Sebastian ; Bergemalm, Daniel ; Almer, Sven ; Hjortswang, Henrik ; Bresso, Francesca ; Strüning, Nina ; Kupčinskas, Juozas ; Keller, Andreas ; Lieb, Wolfgang ; Rosenstiel, Philip ; Schreiber, Stefan ; D'Amato, Mauro ; Halfvarson, Jonas ; Hemmrich-Stanisak, Georg ; Franke, Andre
DOI	10.1093/ecco-jcc/jjac003
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Is Part of	Journal of Crohn's & colitis.. Oxford : Oxford University Press. 2022, vol. 16, iss. 7, p. 1097-1109.. ISSN 1873-9946. eISSN 1876-4479
Keywords [eng]	Inflammatory bowel disease ; gene expression ; peripheral blood
Abstract [eng]	BACKGROUND AND AIMS: Inflammatory bowel disease (IBD) is a chronic relapsing disorder of the gastrointestinal tract, which generally manifests as Crohn's disease (CD) or ulcerative colitis (UC). These subtypes are heterogeneous in terms of disease location and histological features, while sharing common clinical presentation, genetic associations and thus, common immune regulatory pathways. METHODS: Using miRNA and mRNA coupled transcriptome profiling and systems biology approaches, we report a comprehensive analysis of blood transcriptomes from treatment-naïve (n=110) and treatment-exposed (n=177) IBD patients as well as symptomatic- (n=65) and healthy controls (n=95). RESULTS: Broadly, the peripheral blood transcriptomes of CD and UC patients were similar. However, there was an extensive gene deregulation in the blood of IBD patients, while only a slight deregulation in symptomatic controls, when compared with healthy controls. The deregulated mRNAs and miRNAs are mainly involved in the innate immunity and are especially enriched in neutrophil activation-related pathways. Oxidative phosphorylation and neutrophil activation-related modules were found to be differentially co-expressed among treatment-naïve IBD as compared to healthy controls. In the deregulated neutrophil activation-related co-expression module, the IL1B was identified as the central gene. The co-expression levels among IL1B and chemosensing receptor (CXCR1/2 and FPR1/2) genes were reduced in the blood of IBD patients when compared with healthy controls. CONCLUSIONS: Immune dysregulation seen in peripheral blood transcriptomes of treatment-naïve IBD patients is mainly driven by neutrophil activation.
Published	Oxford : Oxford University Press
Type	Journal article
Language	English
Publication date	2022
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„Detailed transcriptional landscape of peripheral blood points to increased neutrophil activation in treatment-naïve inflammatory bowel disease /“