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  • Title: Substance P, neurokinin A, and neurokinin B induce generation of IL-1-like activity in P388D1 cells. Possible relevance to arthritic disease.
    Author: Kimball ES, Persico FJ, Vaught JL.
    Journal: J Immunol; 1988 Nov 15; 141(10):3564-9. PubMed ID: 2460538.
    Abstract:
    Near nanomolar concentrations of substance P induce production of IL-1 or an IL-1-like activity in the mouse macrophage cell line P388D1. Moreover, this could be accomplished with the carboxyl-terminal octapeptide substance P4-11, and could be inhibited with the substance P antagonist [D-Pro2, D-Trp7,9]-substance P. Two other mammalian neurokinins, neurokinin A and neurokinin B, were also found to induce secretion of IL-1-like activity in P388D1 cells. These findings suggest that activation of immune cells by neuromodulators can contribute to the maintenance of the chronic inflammatory state and the immunopathology observed in arthritic disease mediated by IL-1. The results also suggest that one approach to the treatment of rheumatoid arthritis might be to attempt to inhibit the local effects of immuno-modulatory neuropeptides, specifically the neurokinins, in affected joints.
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