Abstract
On phagocytosing a microorganism, the neutrophil zpolymor-phonuclear leukocyte, PMN) consumes oxygen at a sharply elevated rate1. The oxygen is used to kill the microorganism, presumably being used to produce a potent oxidizing agent or agents. Candidates for these bactericidal agents are singlet oxygen, hydroxyl radical and chlorinating agents (that is, species containing ‘active’ Cl in a formal +1 oxidation state: HOCl, Cl2, N-chloroamides, and so on)1–5. We now report a semiquantitative assay for PMN-generated active chlorine based on its trapping with 1,3,5-trimethoxybenzene (TMB). Using this assay, we have found that at least 28% of the oxygen consumed by stimulated normal human PMNs is converted to active chlorinating agents.
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Foote, C., Goyne, T. & Lehrer, R. Assessment of chlorination by human neutrophils. Nature 301, 715–716 (1983). https://doi.org/10.1038/301715a0
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DOI: https://doi.org/10.1038/301715a0
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