8960
We compared U-937 cell adhesion and adhesion molecule expression in human umbilical venous ( HUVECs ) and arterial (HUAECs) endothelial cells exposed to tumor necrosis factor ( TNF ), interleukin-1 , and lipopolysaccharide ( LPS ).
 ( cell type: arterial (HUAECs) endothelial cells, None) , ( protein: adhesion molecule, None) , ( cell type: human umbilical venous, None) , ( protein: tumor necrosis factor, None) , ( cell type: HUVECs, None) , ( protein: interleukin-1, None) , ( protein: TNF, None) , ( cell line: U-937 cell, 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:
 ( cell type: arterial (HUAECs) endothelial cells, None) , ( protein: adhesion molecule, None) , ( cell type: human umbilical venous, None) , ( protein: tumor necrosis factor, None) , ( cell type: HUVECs, None) , ( protein: interleukin-1, None) , ( protein: TNF, None) , ( cell line: U-937 cell, None) 