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  • Title: Cytokine networks in the regulation of inflammation and fibrosis in the lung.
    Author: Elias JA, Freundlich B, Kern JA, Rosenbloom J.
    Journal: Chest; 1990 Jun; 97(6):1439-45. PubMed ID: 2112081.
    Abstract:
    To understand the processes regulating inflammation and fibrosis in the human lung, we characterized the effects of recombinant interleukin-1, tumor necrosis factor, and gamma interferon on fibroblast proliferation, collagen production, interleukin-1-alpha production, interleukin-1-beta production, and interleukin-6-production. These studies demonstrated the existence of complex cytokine networks by which inflammatory cells regulate fibroblast function and fibroblasts, in turn, feed back to regulate inflammatory cell function. They also demonstrated that, in this complex network, the effect of an individual cytokine varies with the state of activation of the target cell, the presence of other cytokines in the local microenvironment, and the ability of the target cell to produce bioactive autocoids such as prostaglandins. Aspects of this cytokine network are discussed and a testable hypothesis for granuloma and abscess formation is detailed.
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