3791
In contrast to peptide vaccination , immunization with adenovirus, expressing Ad5E1A , induced Ad5E1A -specific immunity and prevented the outgrowth of Ad5E1A -expressing tumors .
 ( protein: Ad5E1A, None) , ( protein: Ad5E1A, None) , ( protein: Ad5E1A, 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: Ad5E1A, None) , ( protein: Ad5E1A, None) , ( protein: Ad5E1A, None) 