14844
Basing on these experiments, trans-cellular activation of EBV was tested by cocultivation of BZLF 1 -expressing R59Z activator cells with the R7-57 reporter line .
 BZLF 1, R7-57 reporter line, BZLF 1 -expressing R59Z activator 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:
 BZLF 1, R7-57 reporter line, BZLF 1 -expressing R59Z activator cells