Renal systems biology of patients with systemic inflammatory response syndrome.

TitleRenal systems biology of patients with systemic inflammatory response syndrome.
Publication TypeJournal Article
Year of Publication2015
AuthorsTsalik EL, Willig LK, Rice BJ, van Velkinburgh JC, Mohney RP, McDunn JE, Dinwiddie DL, Miller NA, Mayer ES, Glickman SW, Jaehne AK, Glew RH, Sopori ML, Otero RM, Harrod KS, Cairns CB, Fowler VG, Rivers EP, Woods CW, Kingsmore SF, Langley RJ
JournalKidney Int
Date Published2015 May 20
ISSN Number1523-1755
Abstract

<p>A systems biology approach was used to comprehensively examine the impact of renal disease and hemodialysis (HD) on patient response during critical illness. To achieve this, we examined the metabolome, proteome, and transcriptome of 150 patients with critical illness, stratified by renal function. Quantification of plasma metabolites indicated greater change as renal function declined, with the greatest derangements in patients receiving chronic HD. Specifically, 6 uremic retention molecules, 17 other protein catabolites, 7 modified nucleosides, and 7 pentose phosphate sugars increased as renal function declined, consistent with decreased excretion or increased catabolism of amino acids and ribonucleotides. Similarly, the proteome showed increased levels of low-molecular-weight proteins and acute-phase reactants. The transcriptome revealed a broad-based decrease in mRNA levels among patients on HD. Systems integration revealed an unrecognized association between plasma RNASE1 and several RNA catabolites and modified nucleosides. Further, allantoin, N1-methyl-4-pyridone-3-carboxamide, and N-acetylaspartate were inversely correlated with the majority of significantly downregulated genes. Thus, renal function broadly affected the plasma metabolome, proteome, and peripheral blood transcriptome during critical illness; changes were not effectively mitigated by hemodialysis. These studies allude to several novel mechanisms whereby renal dysfunction contributes to critical illness.Kidney International advance online publication, 20 May 2015; doi:10.1038/ki.2015.150.</p>

DOI10.1038/ki.2015.150
Alternate JournalKidney Int.
PubMed ID25993322
Grant ListU01 AI066569 / AI / NIAID NIH HHS / United States
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