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- W2161666093 abstract "We examined the influence of untreated interstitial lung disease (ILD) on the in vitro release of interleukin-1β (IL-1β) and interleukin-1 receptor antagonist (IL-1ra) from alveolar macrophages (AM); AM were harvested from normal volunteers, ILD patients, and patients with asbestos-related pleural disease but no ILD. AM were cultured for 24 h and assays for IL-1β and IL-1ra were done using sensitive and specific enzyme-linked immunosorbent assay. A greater amount of IL-1β was detected in AM supernatants from asbestosis, sarcoidosis, and IPF patients than in those from normal subjects. The IL-1β: IL-1ra ratio (IL-1β activity index [IL-1AI]) was significantly lower in supernatants of normal macrophages compared with macrophage supernatants from individuals with ILD. The IL-1AI correlated with bronchoalveolar lavage cellularity, a marker of disease activity. Current smoking was associated with lower IL-1β and IL-1ra release in ILD. The IL-1AI is a convenient method for comparison of IL-1β activity between patient populations. We examined the influence of untreated interstitial lung disease (ILD) on the in vitro release of interleukin-1β (IL-1β) and interleukin-1 receptor antagonist (IL-1ra) from alveolar macrophages (AM); AM were harvested from normal volunteers, ILD patients, and patients with asbestos-related pleural disease but no ILD. AM were cultured for 24 h and assays for IL-1β and IL-1ra were done using sensitive and specific enzyme-linked immunosorbent assay. A greater amount of IL-1β was detected in AM supernatants from asbestosis, sarcoidosis, and IPF patients than in those from normal subjects. The IL-1β: IL-1ra ratio (IL-1β activity index [IL-1AI]) was significantly lower in supernatants of normal macrophages compared with macrophage supernatants from individuals with ILD. The IL-1AI correlated with bronchoalveolar lavage cellularity, a marker of disease activity. Current smoking was associated with lower IL-1β and IL-1ra release in ILD. The IL-1AI is a convenient method for comparison of IL-1β activity between patient populations." @default.
- W2161666093 created "2016-06-24" @default.
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- W2161666093 date "1993-07-01" @default.
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- W2161666093 title "Relative Release of lnterleukin-1β and lnterleukin-1 Receptor Antagonist by Alveolar Macrophages" @default.
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- W2161666093 doi "https://doi.org/10.1378/chest.104.1.47" @default.
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