8640
Stimulation of lymphoid cells with interleukin-1beta ( IL-1beta ) led to ROI production and NF-kappaB activation , which could both be blocked by antioxidants or FLAP inhibitors, confirming that 5-LOX was the source of ROIs and was required for NF-kappaB activation in these cells.
 ( protein: NF-kappaB, None) , ( protein: interleukin-1beta, None) , ( protein: IL-1beta, None) , ( cell type: lymphoid cells, None) , ( protein: FLAP, None) , ( protein: 5-LOX, None) , ( protein: NF-kappaB, 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:
 ( protein: NF-kappaB, None) , ( protein: interleukin-1beta, None) , ( protein: IL-1beta, None) , ( cell type: lymphoid cells, None) , ( protein: FLAP, None) , ( protein: 5-LOX, None) , ( protein: NF-kappaB, None) 