4530
Latent membrane protein 1 and, to a lesser extent, EBV nuclear antigen 2 mediated the increase in p53 levels via activation of the NF-kappaB transcription factor .
 NF-kappaB, EBV nuclear antigen 2, p53, Latent membrane protein 1, transcription factor
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:
 NF-kappaB, EBV nuclear antigen 2, p53, Latent membrane protein 1, transcription factor