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In studies initiated to evaluate relationships between EBV latent genes and p53 , p53 levels were found to increase approximately 10-fold 4 to 5 days after EBV infection of purified resting human B cells ; the induced p53 was transcriptionally active.
 resting human B cells, EBV latent genes, p53, p53, p53
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:
 resting human B cells, EBV latent genes, p53, p53, p53