2359
We observed that FK506 suppressed the transcription of a chemotactic cytokine , interleukin-8 ( IL-8 ) in a human T cell line , Jurkat cells , activated by phorbol 12-myristate 13-acetate ( PMA ) and calcium ( Ca2+ ) ionophore ( ionomycin ).
 ( protein: IL-8, None) , ( protein: chemotactic cytokine, None) , ( cell line: human T cell line, None) , ( cell line: Jurkat cells, None) , ( protein: interleukin-8, 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: IL-8, None) , ( protein: chemotactic cytokine, None) , ( cell line: human T cell line, None) , ( cell line: Jurkat cells, None) , ( protein: interleukin-8, None) 