14572
To test this hypothesis, 4-h NK cytolysis assays were performed on IFN-gamma-treated human cells infected with an Ad5 E1A deletion mutant , dl343 , or transfected with the Ad5 E1A gene .
 E1A, Ad5 E1A gene, E1A, IFN-gamma-treated human cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 E1A, Ad5 E1A gene, E1A, IFN-gamma-treated human cells