Abstract
Natural killer (NK) cells are a subset of lymphocytes that kill tumor cells and virus-infected target cells in a non-MHC-restricted fashion. Serotonin augments several functions of human NK cells, including anti-tumor cytotoxicity, proliferation, and lymphokine production by an indirect mechanism of action. Thus, activation of 5-HT1Atype receptors abrogates a cell-contact-dependent suppressive signal delivered to NK cells by monocytes and granulocytes. The suppressive signal is closely related to the ‘respiratory burst’ activity of monocytes/granulocytes since catalase, a scavenger of reactive oxygen metabolites, abrogates the suppression as effectively as serotonin. Further, serotonin depresses the generation of oxygen metabolites by monocytes and granulocytes. The presented data are suggestive of a novel type of communication between subsets of leukocytes involved in nonadaptive immunity and its serotonergic regulation.
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© 1993 Springer Science+Business Media Dordrecht
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Hellstrand, K., Dahlgren, C., Hermodsson, S. (1993). Serotonergic Regulation of Natural Killer Cells: A Minireview. In: Vanhoutte, P.M., Saxena, P.R., Paoletti, R., Brunello, N., Jackson, A.S. (eds) Serotonin. Medical Science Symposia Series, vol 5. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1920-7_40
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DOI: https://doi.org/10.1007/978-94-011-1920-7_40
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