Stimulation of phagocytosis activity is a characteristic pro-resolving effect of SPM. Murine Raw 264.7 cells were plated on 96-well plates at a density of 5x10^5 cells/ml. Cells were pre-treated with either no treatment, LPS (100ug/ml), 17R-RvD1 (100-1000nM) and benzo-RvD1 (100-1000nM) for 1 hour, then either S. aureus (50:1 particle to macrophage ratio) or Zymosan (10:1 particle to macrophage ratio) bioparticles labeled with pHrodo (Invitrogen) were added for phagocytosis. Plates were analyzed using a microplate reader (SpectraMax M2; Molecular Devices) to detect the intensity of bioparticle fluorescence.
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