2609
Stimulation of the human monocytic cell line Mono Mac 6 with lipopolysaccharide ( LPS ) leads to rapid and transient expression of cytokines like tumor necrosis factor ( TNF ).
 ( cell line: Mono Mac 6, None) , ( protein: TNF, None) , ( cell line: human monocytic cell line, None) , ( protein: cytokines, None) , ( protein: tumor necrosis factor, 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 line: Mono Mac 6, None) , ( protein: TNF, None) , ( cell line: human monocytic cell line, None) , ( protein: cytokines, None) , ( protein: tumor necrosis factor, None) 