2118
Human umbilical vein ECs were pretreated with alpha-tcp before stimulation with known agonists of monocyte adhesion : IL-1 (10 ng/ml), LPS (10 ng/ml), thrombin (30 U/ml), or PMA (10 nM).
 ( protein: IL-1, None) , ( cell type: ECs, None) , ( protein: thrombin, 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-1, None) , ( cell type: ECs, None) , ( protein: thrombin, None) 