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© Research
Publication : Nature communications

Metabolomics analysis of human acute graft-versus-host disease reveals changes in host and microbiota-derived metabolites.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Nature communications - 13 Dec 2019

Michonneau D, Latis E, Curis E, Dubouchet L, Ramamoorthy S, Ingram B, de Latour RP, Robin M, de Fontbrune FS, Chevret S, Rogge L, Socié G,

Link to Pubmed [PMID] – 31836702

Nat Commun 2019 12; 10(1): 5695

Despite improvement in clinical management, allogeneic hematopoietic stem cell transplantation (HSCT) is still hampered by high morbidity and mortality rates, mainly due to graft versus host disease (GvHD). Recently, it has been demonstrated that the allogeneic immune response might be influenced by external factors such as tissues microenvironment or host microbiota. Here we used high throughput metabolomics to analyze two cohorts of genotypically HLA-identical related recipient and donor pairs. Metabolomic profiles markedly differ between recipients and donors. At the onset of acute GvHD, in addition to host-derived metabolites, we identify significant variation in microbiota-derived metabolites, especially in aryl hydrocarbon receptor (AhR) ligands, bile acids and plasmalogens. Altogether, our findings support that the allogeneic immune response during acute GvHD might be influenced by bile acids and by the decreased production of AhR ligands by microbiota that could limit indoleamine 2,3-dioxygenase induction and influence allogeneic T cell reactivity.

https://pubmed.ncbi.nlm.nih.gov/31836702