12843
Cross-linking of FcR , on the THP-1 monocytic cell line , by immune complexes resulted in both activation of the transcription factor NF-kappaB and interleukin 1 production .
 ( protein: FcR, None) , ( protein: interleukin 1, None) , ( cell line: THP-1 monocytic cell line, None) , ( protein: transcription factor, None) , ( protein: NF-kappaB, None) , ( protein: immune complexes, 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: FcR, None) , ( protein: interleukin 1, None) , ( cell line: THP-1 monocytic cell line, None) , ( protein: transcription factor, None) , ( protein: NF-kappaB, None) , ( protein: immune complexes, None) 