8470
Activation of normal lymph node cells resulted in increased expression of Egr -1 , -2 , and -3 .
 ( cell type: normal lymph node cells, 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: normal lymph node cells, None) 