7912
Pretreatment of "semimature" 5-day human monocyte-derived macrophages (M phi) for 24 h with methylprednisolone , dexamethasone , and hydrocortisone , but not the nonglucocorticoid steroids aldosterone , estradiol , and progesterone , potentiated phagocytosis of apoptotic neutrophils .
 ( cell type: human monocyte-derived macrophages, None) , ( cell type: apoptotic neutrophils, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell type: human monocyte-derived macrophages, None) , ( cell type: apoptotic neutrophils, None) 