Journal
PEDIATRIC PULMONOLOGY
Volume 42, Issue 3, Pages 277-282Publisher
WILEY
DOI: 10.1002/ppul.20574
Keywords
respiratory syncytial virus; adenovirus; bronchial epithelial cells; interleukine-6; interleukin-8; RANTES
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In order to broaden our knowledge of the primary immune responses to respiratory syncytial virus (RSV) and adenovirus infections, we compared the concentrations of interleukin (IL)-6, IL-8, and regulated on activation, normal T cell expressed and secreted (RANTES) produced in vitro during RSV and adenovirus infections of bronchial epithelial cells. We infected BEAS-2B cells-a human bronchial epithelial cell line-with RSV, adenovirus serotype 3, or serotype 7 and measured the concentrations of IL-6, IL-8, and RANTES in the cell culture supernatants. When the multiplicity of infection (MOI) was 1, RSV induced the production of markedly higher concentrations of IL-6, IL-8, and RANTES than the adenovirus. When the MOI of the adenovirus was increased to 100, the production of IL-6 and IL-8 increased. However, the amounts produced were still lower than those produced by RSV with the MOI of 1. There was no statistically significant increase in the production of RANTES in spite of the MOI of the adenovirus was increased to 100. Adenovirus serotype 7 induced the production of considerably more IL-6 and IL-8 than serotype 3 in the MOI of 100. However, neither adenovirus serotype triggered an increase in the production of RANTES in spite of the MOI of 100. This demonstrates that RSV could have a superior capacity to stimulate the production of IL-6, IL-8, and RANTES in the bronchial epithelial cells. This study may help to explain the differences in the clinical outcomes of RSV and adenovirus infections.
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