Changes in mechanisms of monocyte/macrophage-mediated cytotoxicity during culture. Reactive oxygen intermediates are involved in monocyte-mediated cytotoxicity, whereas reactive nitrogen intermediates are employed by macrophages in tumor cell killing.

@article{Martin1993ChangesIM,
  title={Changes in mechanisms of monocyte/macrophage-mediated cytotoxicity during culture. Reactive oxygen intermediates are involved in monocyte-mediated cytotoxicity, whereas reactive nitrogen intermediates are employed by macrophages in tumor cell killing.},
  author={James H. Martin and S W Edwards},
  journal={Journal of immunology},
  year={1993},
  volume={150 8 Pt 1},
  pages={
          3478-86
        }
}
Freshly isolated human blood monocytes were spontaneously cytotoxic toward K562 tumor cells. During culture of the monocytes in vitro cytotoxicity decreased during the first 48 h but tumoricidal competence was restored after 3 to 4 days in vitro. These changes were accompanied by changes in both reactive oxygen intermediate generating capacity and reactive nitrogen intermediate production. Lucigenin-dependent chemiluminescence stimulated with either FMLP or PMA declined during the first 2 days… CONTINUE READING
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