3680
These results suggest that, while lipopolysaccharide -induced expression of inflammatory mediators requires tyrosine kinase activity , tyrosine kinase activity is not obligatory for lipopolysaccharide signal transduction .
 ( protein: tyrosine kinase, None) , ( protein: tyrosine kinase, None) , ( protein: inflammatory mediators, 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: tyrosine kinase, None) , ( protein: tyrosine kinase, None) , ( protein: inflammatory mediators, None) 