RGD Reference Report - Influenza virus-cytokine-protease cycle in the pathogenesis of vascular hyperpermeability in severe influenza. - Rat Genome Database

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Influenza virus-cytokine-protease cycle in the pathogenesis of vascular hyperpermeability in severe influenza.

Authors: Wang, S  Le, TQ  Kurihara, N  Chida, J  Cisse, Y  Yano, M  Kido, H 
Citation: Wang S, etal., J Infect Dis. 2010 Oct 1;202(7):991-1001.
RGD ID: 4143268
Pubmed: PMID:20731583   (View Abstract at PubMed)
PMCID: PMC7537608   (View Article at PubMed Central)
DOI: DOI:10.1086/656044   (Journal Full-text)

BACKGROUND: Severe influenza is characterized by cytokine storm and multiorgan failure with edema. The aim of this study was to define the impact of the cytokine storm on the pathogenesis of vascular hyperpermeability in severe influenza. METHODS: Weanling mice were infected with influenza A WSN/33(H1N1) virus. The levels of proinflammatory cytokines, tumor necrosis factor (TNF) alpha, interleukin (IL) 6, IL-1beta, and trypsin were analyzed in the lung, brain, heart, and cultured human umbilical vein endothelial cells. The effects of transcriptional inhibitors on cytokine and trypsin expressions and viral replication were determined. RESULTS: Influenza A virus infection resulted in significant increases in TNF-alpha, IL-6, IL-1beta, viral hemagglutinin-processing protease trypsin levels, and viral replication with vascular hyperpermeability in lung and brain in the first 6 days of infection. Trypsin upregulation was suppressed by transcriptional inhibition of cytokines in vivo and by anti-cytokine antibodies in endothelial cells. Calcium mobilization and loss of tight junction constituent, zonula occludens-1, associated with cytokine- and trypsin-induced endothelial hyperpermeability were inhibited by a protease-activated receptor-2 antagonist and a trypsin inhibitor. CONCLUSIONS: The influenza virus-cytokine-protease cycle is one of the key mechanisms of vascular hyperpermeability in severe influenza.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Human Influenza  ISOIl6 (Mus musculus)4143268; 4143268 RGD 
Human Influenza  IEP 4143268 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Il6  (interleukin 6)

Genes (Mus musculus)
Il6  (interleukin 6)

Genes (Homo sapiens)
IL6  (interleukin 6)


Additional Information