4861
r-hTBP-1 and rhu TNFR:Fc also decreased p24 antigen synthesized by U1 cells in response to other stimuli, including phytohemagglutinin ( PHA )-induced supernatant , granulocyte-macrophage colony-stimulating factor , interleukin-6 , and TNF .
 ( protein: phytohemagglutinin ( PHA )-induced supernatant, None) , ( protein: rhu TNFR:Fc, None) , ( protein: r-hTBP-1, None) , ( protein: phytohemagglutinin, None) , ( protein: granulocyte-macrophage colony-stimulating factor, None) , ( protein: interleukin-6, None) , ( cell line: U1 cells, None) , ( protein: TNF, None) , ( protein: PHA, None) , ( protein: p24 antigen, 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: phytohemagglutinin ( PHA )-induced supernatant, None) , ( protein: rhu TNFR:Fc, None) , ( protein: r-hTBP-1, None) , ( protein: phytohemagglutinin, None) , ( protein: granulocyte-macrophage colony-stimulating factor, None) , ( protein: interleukin-6, None) , ( cell line: U1 cells, None) , ( protein: TNF, None) , ( protein: PHA, None) , ( protein: p24 antigen, None) 