Abstract
Hyperoxia stimulates alveolar macrophages (AM) to make and release a factor which increases neutrophil adherence to nylon fiber. Production of the neutrophil adherence-stimulating factor by AM exposed to hyperoxia is maximal after AM have been exposed to hyperoxia for 72 h and requires protein synthesis by intact AM. The adherence factor is heat-labile and by column chromatography elutes in a molecular-weight range of approximately 8000–18,000 daltons. The AM-derived adherence factor could influence accumulation of neutrophils in the lungs of animals exposed to hyperoxia and contribute to neutrophil-mediated lung injury from hyperoxia.
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This work was supported by grants from the Americans Heart Association, National Institutes of Health HL24248, Council for Tobacco Research, and the Kroc. hill, Swan, Kleberg and Parker B. Francis Foundation.
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Bowman, C.M., Harada, R.N. & Repine, J.E. Hyperoxia stimulates alveolar macrophages to produce and release a factor which increases neutrophil adherence. Inflammation 7, 331–338 (1983). https://doi.org/10.1007/BF00916297
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DOI: https://doi.org/10.1007/BF00916297