7402
Given the deleterious effects to the host of TNF-alpha , it has been postulated that TNF-alpha gene expression must be tightly regulated.
 ( protein: TNF-alpha, None) , ( protein: TNF-alpha, 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: TNF-alpha, None) , ( protein: TNF-alpha, None) 