期刊
LANCET INFECTIOUS DISEASES
卷 14, 期 1, 页码 57-69出版社
ELSEVIER SCI LTD
DOI: 10.1016/S1473-3099(13)70286-X
关键词
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资金
- NHMRC CJ Martin postdoctoral fellowship [1054081]
- NIH/NIAID [HHSN266200700010C]
- European Union FP7 ANTIGONE [278976]
Acute respiratory distress syndrome (ARDS) is a fatal complication of influenza infection. In this Review we provide an integrated model for its pathogenesis. ARDS involves damage to the epithelial endothelial barrier, fluid leakage into the alveolar lumen, and respiratory insufficiency. The most important part of the epithelial endothelial barrier is the alveolar epithelium, strengthened by tight junctions. Influenza virus targets these epithelial cells, reducing sodium pump activity, damaging tight junctions, and killing infected cells. Infected epithelial cells produce cytokines that attract leucocytes-neutrophils and macrophages and activate adjacent endothelial cells. Activated endothelial cells and infiltrated leucocytes stimulate further infiltration, and leucocytes induce production of reactive oxygen species and nitric oxide that damage the barrier. Activated macrophages also cause direct apoptosis of epithelial cells. This model for influenza-induced ARDS differs from the dassic model, which is centred on endothelial damage, and provides a rationale for therapeutic intervention to moderate host response in influenza-induced ARDS.
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