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Microglia (magenta) ignore apoptotic cells (labeled by AO, green) in the presence of PSB-0739, a P2RY12 antagonist. Three apoptotic cells are detected (arrows) and are not engulfed by microglia, although some microglia have engulfed other AO+ cells as indicated by signal in microglial compartments. Timestamp in upper left shows hour:min.
