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. 1990 Feb;85(2):601–604. doi: 10.1172/JCI114480

Human fibroblasts maintain the viability and augment the functional response of human neutrophils in culture.

C J Ling 1, W F Owen Jr 1, K F Austen 1
PMCID: PMC296466  PMID: 1688889

Abstract

When human neutrophils were co-cultured for 72 h with nontransformed human fibroblasts, 69 +/- 3% (n = 13) survived, as compared with survival levels of 2 +/- 1% (n = 15) and 26 +/- 6% (n = 7), respectively, for neutrophils cultured for the same time period in enriched medium alone or supplemented with 10 pM recombinant human granulocyte/macrophage colony-stimulating factor (rh GM-CSF). Conditioned medium from the human fibroblast cultures enhanced neutrophil survival in a dose-dependent fashion to the same level achieved with neutrophil/fibroblast co-cultures, and its soluble viability-sustaining activity was not inhibited by preincubation with neutralizing antiserum against rh GM-CSF. As compared with freshly isolated replicate samples, neutrophils co-cultured with human fibroblasts for 72 h exhibited augmented FMLP-stimulated superoxide production without spontaneous superoxide generation. This striking extension of survival and associated priming for a ligand response by neutrophils co-cultured with human fibroblasts suggests that fibroblasts may contribute to the proinflammatory properties of neutrophils in tissues.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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